CN112371069B - Continuous reaction, crystallization, filtration, washing and drying system - Google Patents
Continuous reaction, crystallization, filtration, washing and drying system Download PDFInfo
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- CN112371069B CN112371069B CN202011142785.8A CN202011142785A CN112371069B CN 112371069 B CN112371069 B CN 112371069B CN 202011142785 A CN202011142785 A CN 202011142785A CN 112371069 B CN112371069 B CN 112371069B
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- 238000005406 washing Methods 0.000 title claims abstract description 149
- 238000001914 filtration Methods 0.000 title claims abstract description 49
- 238000001035 drying Methods 0.000 title claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 46
- 238000002425 crystallisation Methods 0.000 title claims abstract description 23
- 230000008025 crystallization Effects 0.000 title claims abstract description 23
- 238000000967 suction filtration Methods 0.000 claims abstract description 81
- 238000003828 vacuum filtration Methods 0.000 claims abstract description 69
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000007599 discharging Methods 0.000 claims abstract description 51
- 239000012065 filter cake Substances 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000012824 chemical production Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 109
- 239000002002 slurry Substances 0.000 claims description 79
- 238000009826 distribution Methods 0.000 claims description 75
- 239000000463 material Substances 0.000 claims description 50
- 238000007789 sealing Methods 0.000 claims description 46
- 239000000126 substance Substances 0.000 claims description 16
- 239000003638 chemical reducing agent Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 238000007790 scraping Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 238000009827 uniform distribution Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 31
- 230000000694 effects Effects 0.000 abstract description 9
- 238000001291 vacuum drying Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 239000002904 solvent Substances 0.000 description 5
- 239000007810 chemical reaction solvent Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Filtration Of Liquid (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a continuous reaction, crystallization, filtration, washing and drying system, and belongs to the technical field of pharmaceutical chemical production equipment. The device comprises a batching unit, a reaction unit, a vacuum filtering unit, a drying unit and a storage unit which are sequentially connected, wherein the vacuum filtering unit comprises a vacuum filtering washing machine, and the vacuum filtering washing machine comprises a shell, a vacuum suction filtering groove, a feeding and discharging component, a suction filtering mechanism and a driving mechanism; the vacuum suction filter tank in the vacuum filtration washing machine is arranged to be of a rotary structure, the rotation is realized through the driving of the driving mechanism, the filter cake of the insoluble product formed on the filter disc can be continuously scraped and collected by the scraper at the blanking scraper, so that the filter cake is maintained at a thinner thickness, and the suction filtration and separation effects of the soluble product are ensured; insoluble product powder obtained by the vacuum filtration washing machine is conveyed into a drying unit for vacuum drying. The invention ensures the suction filtration and separation effects of the product and can realize the continuous operation of the system.
Description
Technical Field
The invention belongs to the technical field of pharmaceutical chemical production equipment, and particularly relates to a continuous reaction, crystallization, filtration, washing and drying system.
Background
At present, most of chemical and pharmaceutical production processes adopt intermittent operation when filtering, washing and drying operations are carried out, a plurality of devices and a multi-procedure horizontal layout scheme are adopted for production, materials are required to be transferred in different devices, the operation is complex, the devices are more, the occupied area is large, and the washing and filtering integrated machines are also used for preparing the materials. However, the conventional filtering and washing integrated machine device has the following problems: the traditional filtering and washing all-in-one machine is generally only subjected to one-time washing and filtering, washing and filtering effects are poor, and meanwhile, after the traditional filtering and washing all-in-one machine is finished, raw materials can have the phenomenon of sticking to the wall, so that the working efficiency is reduced, resource waste is caused, and the working efficiency of the next operation of equipment is affected.
The operation method of the traditional filtering and washing integrated machine mainly comprises the following steps:
firstly, quantitatively injecting raw material slurry into a machine body, cutting off slurry supply, carrying out suction filtration, and finally scraping and collecting a filter cake formed by the slurry. In order to consider the overall process efficiency, the injection amount of slurry is larger every time, the generated filter cake is thicker, and when the filter cake is thicker, the suction filtration efficiency and the solid-liquid separation efficiency are not only influenced, so that the overall large-scale investment cost and the generation cost of equipment are further influenced, and the suction filtration and separation effects of products cannot be ensured, so that the production process cannot be continuously carried out.
Disclosure of Invention
The invention aims to provide a continuous reaction, crystallization, filtration, washing and drying system, which ensures the suction filtration and separation effects of products and can realize continuous operation of the system.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the continuous reaction, crystallization, filtration, washing and drying system comprises a batching unit, a reaction unit, a vacuum filtration unit, a drying unit and a storage unit which are sequentially connected, wherein the batching unit is used for providing materials for the reaction unit, the materials enter the vacuum filtration unit for solid-liquid separation after reacting in the reaction unit, the drying unit is used for drying formed powder materials, and the materials dried by the drying unit enter the storage unit;
the vacuum filter unit comprises a vacuum filter washing machine, wherein the vacuum filter washing machine comprises a shell, a vacuum suction filter tank, a feeding and discharging component, a suction filter mechanism and a driving mechanism;
the material inlet and outlet assembly and the vacuum filtration tank are positioned in the shell, and the material inlet and outlet assembly is positioned above the vacuum filtration tank; the suction filter mechanism is positioned below the shell, and the driving mechanism is positioned above the shell;
the feeding and discharging assembly comprises a central disc fixing frame, a discharging scraper blade, a discharging shovel, a hollow groove, a slurry distribution groove and a washing liquid distribution groove, wherein the central disc fixing frame is fixed in the shell, the vacuum suction filter groove is positioned below the central disc fixing frame, and the discharging scraper blade, the slurry distribution groove and the washing liquid distribution groove are respectively connected with the central disc fixing frame; the slurry distribution groove and the washing liquid distribution groove are arranged around the center of the vacuum suction filtration groove along the radial direction, the slurry distribution groove and the washing liquid distribution groove are respectively connected with a corresponding slurry inlet and a washing liquid inlet, slurry uniformly flows into the vacuum suction filtration groove through the slurry distribution groove, and a cleaning area is formed through the washing liquid distribution groove so as to clean insoluble substances in the slurry; when a filter cake formed by insoluble substances in the vacuum filtration tank reaches a certain thickness, scraping the filter cake out of the vacuum filtration tank through an inclined scraping surface at the lower end of the blanking scraper;
the upper part of the vacuum filtration tank is connected with the driving mechanism, and the vacuum filtration tank can continuously rotate in the shell under the action of the driving mechanism;
the lower part of the vacuum suction filtration groove is connected with the suction filtration mechanism, and liquid in the vacuum suction filtration groove enters the suction filtration mechanism for suction filtration under the action of gravity.
As a preferable scheme of the invention, the drying unit is formed by connecting 1-3 double-cone rotary vacuum multifunctional dryers in parallel, and materials treated by the vacuum filtering washer enter each double-cone rotary vacuum multifunctional dryer respectively for drying, and are conveyed to the storage unit after being dried.
As another preferable scheme of the invention, the double-cone rotary vacuum multifunctional dryer comprises a cylinder body, wherein the cylinder body consists of an inner cylinder body and an outer cylinder body, the inner cylinder body is in a vacuum state, a jacket structure is formed between the inner cylinder body and the outer cylinder body, hot water or hot steam is introduced into the jacket structure to enable the inner cylinder body and materials to exchange heat, and evaporated water vapor is discharged.
Further preferably, the vacuum filtration tank has a housing structure, and the upper flange of the vacuum filtration tank is provided with a filter cloth, a support net and a bracket, wherein the support net is positioned on the bracket, and the filter cloth is positioned on the support net; the slurry distribution groove is provided with one square washing liquid distribution groove, the washing liquid distribution groove is provided with three square washing liquid distribution grooves, and the slurry inlet and the washing liquid inlet are respectively connected with an external slurry supply device and a washing liquid supply device through an upper flange and a lower flange on the shell.
Further preferably, the casing includes a casing main body, the casing main body includes a lower sealing head, a lower cylinder, an upper cylinder and an upper sealing head from bottom to top, a supporting structure is arranged below the casing main body, an upper machine seal and a lower machine seal are respectively arranged at the top and the bottom of the casing main body, the upper machine seal is used for sealing between the casing and the driving mechanism, and the lower machine seal is used for sealing between the casing and the suction filtration mechanism; and the shell main body is also provided with a manhole and a solid discharge hole, and the solid discharge hole is arranged at the shell main body below the corresponding position of the discharging scraper and the discharging shovel.
Preferably, the lower seal head, the lower cylinder body, the upper cylinder body and the upper seal head are sequentially and fixedly connected together by welding, the supporting structure comprises a support and supporting legs, the top of the support is connected with the shell main body, and the bottom of the support is connected with the supporting legs; a liquid level meter and a liquid level sensor are arranged below the inside of the shell, and the liquid level meter is used for displaying the accumulated water amount inside the shell in real time; the liquid level sensor is used for collecting and conveying the liquid level condition inside the shell to the outside in real time, the liquid level sensor is externally connected with an alarm device, and when the accumulated water inside the shell reaches a certain warning value, the alarm device immediately sends an alarm signal to the outside to prompt an operator to process in time; the shell body is also provided with a viewing mirror, an illuminating lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe.
Preferably, the main structures of the slurry distribution groove and the washing liquid distribution groove are composed of a plurality of feeding shovels, wherein each feeding shovel comprises a feeding shovel baffle, a feeding shovel lower shovel piece, feeding shovel sawteeth and a feeding square pipe, and tooth-shaped overflow ports are respectively distributed on the upper parts of the two side walls of each feeding shovel, which extend along the radial direction of the vacuum suction filter groove, and are used for ensuring that the slurry and the washing liquid are uniformly distributed along the radial direction of the vacuum suction filter groove; the slurry distribution chute and the washing liquid distribution chute divide the vacuum suction filtration chute into six areas, the six areas are always in a negative pressure state for suction filtration operation, three areas are used for washing operation while suction filtration is carried out, and the slurry distribution chute and the washing liquid distribution chute are respectively positioned at the junction of the two areas.
Preferably, the suction filtration mechanism comprises a liquid outlet flange, a tetrafluoro sealing device, a lower machine seal, a central disc connecting flange and a suction filtration tube, wherein the central disc connecting flange is used for fixedly connecting the suction filtration mechanism with a vacuum suction filtration tank, the suction filtration mechanism is in sealing fit with the shell through the tetrafluoro sealing device, the tetrafluoro sealing device comprises a sheath and a tetrafluoro sleeve, the suction filtration tube stretches into the sheath, the tetrafluoro sealing device is in sealing connection with the suction filtration tube through the tetrafluoro sleeve, a flange for supporting the tetrafluoro sealing device is arranged at the lower end of the box body of the tetrafluoro sealing device, the liquid outlet flange is used for fixedly connecting the external liquid outlet collecting device, and the lower machine seal is used for connecting the shell with the tetrafluoro sealing device.
Preferably, the driving mechanism comprises a speed reducer, an explosion-proof motor, a frame, a motor flange, a roller bearing, a bearing seat, an upper central disk connecting flange and a tetrafluoro oil seal, and is fixedly connected with the vacuum filtration tank through the upper central disk connecting flange, and the driving mechanism is used for driving the vacuum filtration tank to rotate; the explosion-proof motor, the speed reducer and a solid shaft of the motor are sequentially in transmission connection, the explosion-proof motor and the speed reducer are arranged above the frame, and the part of the speed reducer, which is in transmission connection with the explosion-proof motor, is in sealing connection with the frame; the discharging shovel comprises a discharging shovel main body, a discharging shovel supporting plate, a front bending plate of the discharging shovel and a discharging shovel tetrafluoro plate, wherein the discharging shovel supporting plate is positioned below the discharging shovel main body, and the discharging shovel tetrafluoro plate is positioned at the front end of the discharging shovel.
The continuous reaction, crystallization, filtration, washing and drying system is applied to pharmaceutical chemical production equipment.
The invention relates to a continuous reaction, crystallization, filtration, washing and drying system, which comprises the following specific working processes:
step one: the material firstly enters the batching unit through the feed pipe, the material is uniformly stirred in the batching tank of the batching unit through the stirring device, and the material is conveyed into the reaction kettle of the reaction unit under the conveying action of the machine pump after being uniformly stirred.
Step two: in the reaction kettle, the materials react with the solvent flowing in from the reaction solvent inlet, the reaction crystallization process is completed under the action of the stirring device, and then the materials are conveyed from the reaction kettle to the vacuum filtration washing machine.
Step three: the washing liquid input from the washing solvent inlet is matched with the stirring device to filter and wash the product.
Step four: after the filtration and the washing are completed, the washing liquid flows into a recovery tank through a connecting pipe on the vacuum filtration washing machine for recovery treatment.
Step five: the washed product flows into the dryer unit from the solid product outlet of the vacuum filtering washer, the product is dried through the stirring device and the inlet and outlet circulation of the heating medium, and the dried product is discharged through the discharging pipe on the dryer unit.
The reaction kettle of the reaction unit is in through connection with the vacuum filtration washing machine through a connecting pipe, a lower end solid material outlet of the vacuum filtration washing machine is in through connection with a dryer unit of the drying unit through a connecting pipe, the lower end of a suction filtration pipe of the vacuum filtration washing machine is in through connection with a liquid storage tank through a connecting pipe, and the lower end of the dryer unit is in through connection with a storage tank of the storage unit through a connecting pipe. The whole device has reasonable layout, products gradually complete the operation of respective chemical units, realize the continuous operation from reaction, filtration, washing and drying to collection of the products, improve the working efficiency and enlarge the productivity.
The vacuum suction filter tank in the vacuum filtration washing machine is arranged to be of a rotary structure, rotation is realized through driving of the driving mechanism, a slurry distribution groove, a washing liquid distribution groove and a discharging scraping plate are arranged above the vacuum suction filter tank, the slurry distribution groove and the washing liquid distribution groove are communicated with corresponding slurry inlets and washing liquid inlets, the slurry inlets and the washing liquid inlets are connected with an external slurry supply device and a washing liquid supply device through an upper flange and a lower flange on a shell, and the discharging shovel is of a fixed structure, so that filter cakes of insoluble products formed on the filter disc are continuously scraped and collected by the scraping plate, the filter cakes are maintained at a thinner thickness, suction filtration and separation effects of the soluble products are guaranteed, and continuous feeding of corresponding slurry and washing liquid is realized, and requirements of continuous operation are met.
The insoluble product powder obtained by the vacuum filtration washing machine is conveyed into a drying unit for vacuum drying, when the vacuum dryer is opened in advance to reach the upper limit of the processing capacity of the vacuum filtration washing machine, the insoluble product powder is fed back to the controller, the controller controls to close a valve connected with the vacuum dryer so as to block feeding, and then controls the other vacuum dryer to start and open the valve connected with the vacuum dryer, so that feeding and drying of the other vacuum dryer are realized, namely, the rotation work of different vacuum dryers is realized through the opening and closing of the valve so as to match the working efficiency of the vacuum filtration washing machine, the continuous work of the vacuum filtration washing machine is realized, and the number of the discharging ports and the vacuum dryers can be set according to the working efficiency of the vacuum filtration washing machine and the processing capacity of the vacuum drying device.
Compared with the prior art, the invention has the following beneficial technical effects:
(1) The vacuum filter tank of the vacuum filter washing machine is arranged into a rotary structure, the scraper is of a fixed structure, so that a filter cake of insoluble products formed on the vacuum filter tank is continuously scraped and collected by the scraper, the filter cake is maintained at a thinner thickness, the further suction filter washing work is not influenced, and the corresponding slurry and washing liquid realize continuous feeding, thereby meeting the requirements of continuous operation. Meanwhile, the liquid is subjected to gravity self-flow and vacuum suction filtration in the suction filtration pipe, so that the liquid discharge rate is greatly improved.
(2) Be equipped with 1 square even ground paste distributing groove and 3 square even lotion distributing grooves on the business turn over material subassembly, ground paste distributing groove and lotion distributing groove all radially arrange around the vacuum suction filtration groove center, divide into six regions with the vacuum suction filtration groove, six regions are in the suction filtration operation under the negative pressure state all the time, wherein there are three non-adjacent regions to carry out the washing operation in the suction filtration, ground paste distributing groove and the position of washing liquid distributing groove are located the juncture of two regions respectively, the design can carry out the washing operation to the material many times like this, improve the quality and the holistic work efficiency of material washing.
(3) Through set up the feed opening on the casing of vacuum filtration washing machine, the feed opening passes through 3-4 bipyramid vacuum driers of external connection in proper order of pipeline, all connect valve and bipyramid vacuum driers, when a bipyramid vacuum driers of opening in advance reaches its throughput upper limit, then opens the valve that another bipyramid vacuum driers connects, then close the valve of being connected with current saturation operation dryer that reaches, with blocking the feeding, make another bipyramid vacuum driers feeding, dry, realize the rotation work of different bipyramid vacuum driers through the switching of valve promptly, with the work efficiency of matching vacuum filtration washing machine, realize the continuous operation of vacuum filtration washing machine, and then promote entire system's production efficiency.
(4) The system adopts a full-sealed design, is suitable for treating dangerous and toxic materials containing solution or moisture, and can effectively recycle the reaction solvent.
(5) The system adopts vertical layout, reduces the whole occupied area of the system, finishes the operation of each chemical unit step by step in each device, improves the production efficiency of the product and expands the productivity; meanwhile, the product is conveyed by gravity and automatically flows between all stages, so that damage to product crystals caused by horizontal conveying of a pump is avoided, an automatic production effect is achieved, and unmanned operation is realized.
(6) The system is different from the traditional five-in-one reaction, crystallization, filtration, washing and drying, only one function can be carried out at the same time when the system runs, the rest functions are idle in the running process, and the continuous operation of the reaction, crystallization, filtration, washing and drying processes cannot be realized.
In summary, the continuous reaction, crystallization, filtration, washing and drying system can realize continuous operation, ensure the suction filtration and separation effects of products, and solve the technical problem that related systems in the prior art cannot be continuously operated.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a continuous reaction, crystallization, filtration, washing and drying system according to the present invention;
fig. 2 is a schematic view mainly showing the construction of a vacuum filtration washing machine;
FIG. 3 is a schematic view mainly showing the structure of a housing of the vacuum filter-washing machine;
FIGS. 4 and 5 mainly show the schematic structure of a vacuum filtration tank in a vacuum filtration washing machine;
FIGS. 6-9 are schematic views mainly showing the structure of the feed and discharge assembly in the vacuum filter washing machine;
FIG. 10 is a schematic view mainly showing the structure of a suction filtration mechanism in a vacuum filtration washing machine;
FIG. 11 is a schematic view mainly showing the structure of a driving mechanism in a vacuum filtration washing machine;
fig. 12 is a schematic view mainly showing the structure of a dryer in the present invention;
FIG. 13 is a schematic view mainly showing the structure of a reactor in the reaction unit of the present invention.
In the figure: 1. a housing; 2. a vacuum filtration tank; 3. a feeding and discharging assembly; 4. a suction filtration mechanism; 5. a driving mechanism; 11. sealing by a machine; 12. a manhole; 13. an upper end enclosure; 14. an upper flange; 15. an upper cylinder; 16. a lower flange; 17. a lower cylinder; 18. a connecting pipe flange; 19. a solid discharge port; 110. a lower end enclosure; 111. a level gauge and a level sensor; 112. sealing by a machine; 113. a flushing pipe; 114. a support; 115. a support leg; 21. a flange on the housing; 22. a housing edge flange; 23. cleaning a discharge baffle assembly; 24. a housing lower flange; 31. a central disk holder; 32. a blanking scraper; 33. a discharging shovel; 331. a discharge shovel support plate; 332. a front bending plate of the discharging shovel; 333. a discharge shovel body; 334. a discharge shovel tetrafluoro plate; 34. a hollow groove; 35. a feed shovel; 351. a feed shovel baffle; 352. a feed shovel lower shovel member; 353. feeding shovel saw teeth; 354. a square feeding pipe; 41. a liquid outlet flange; 42. a sheath; 43. a tetrafluoro sleeve; 44. sealing by a machine; 45. a central disk connecting flange; 46. a suction filtration tube; 51. a speed reducer; 52. an explosion-proof motor; 53. a frame; 54. a motor flange; 55. a roller bearing; 56. a bearing seat; 57. an upper center plate connecting flange; 58. a tetrafluoro oil seal; 61. a frame; 62. a cylinder; 63. a top cover; 64. a filter rod; 65. a vacuum tube; 66. a first gear; 67. and driving the motor.
Detailed Description
The invention provides a continuous reaction, crystallization, filtration, washing and drying system, and in order to make the advantages and technical scheme of the invention clearer and more definite, the invention is described in detail below with reference to specific examples.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated component or section without excluding other components or sections.
Spatially relative terms, such as "below," "beneath," "lower," "above," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature's relationship in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the article in use or operation in addition to the orientation depicted in the figures. For example, if the article in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the elements or features. Thus, the exemplary term "below" may encompass both a direction of below and a direction of above. Other orientations of the component (90 degrees or other) are possible and the spatially relative descriptors used herein interpreted accordingly.
As shown in figure 1, the continuous reaction, crystallization, filtration, washing and drying system comprises a batching unit, a reaction unit, a vacuum filtration unit, a drying unit and a storage unit which are sequentially connected, wherein the batching unit is used for providing materials for the reaction unit, the materials enter the vacuum filtration unit for solid-liquid separation after reacting in the reaction unit, and the drying unit is used for drying formed powder particle materials, and the materials dried by the drying unit enter the storage unit.
The above-mentioned batching unit includes batching jar and agitating unit, and the material gets into in the batching jar, and agitating unit installs on the batching jar, carries out the intensive mixing back to its material, sends into the reaction unit, if the pipeline transport raw materials between batching jar and the reaction unit.
The reaction unit is a reactor with a structure shown in fig. 13, wherein materials react, and a reaction solvent inlet is arranged on the reactor.
The drying unit, as shown in fig. 12, comprises 1-3 sets of parallel dryers, and consists of 1-3 double-cone rotary vacuum multifunctional dryers, which are production equipment commonly used for vacuum drying and mixing of granular materials in the industries of biological medicine, food, chemical industry and the like, and are particularly suitable for drying materials which are easy to oxidize, volatilize, heat-sensitive, strongly irritate, toxic and do not allow to destroy crystals, but are used for drying heat-sensitive materials which cannot be directly contacted with high-temperature air or materials containing solvents.
The cylinder body of the double-cone rotary vacuum drier consists of an inner cylinder body and an outer cylinder body, when the double-cone rotary vacuum drier works, the inner cavity of the cylinder body is in a vacuum state, hot steam or hot water is conveyed into a jacket consisting of the inner cylinder body and the outer cylinder body of the cylinder body through a conveying device, heat is exchanged with materials through the inner cylinder body, and evaporated water vapor is pumped away through a vacuumizing tube through a vacuum pump.
As a main improvement of the present invention, as shown in fig. 2, the vacuum filtration unit comprises a vacuum filtration washing machine, wherein the vacuum filtration washing machine comprises a shell 1, a vacuum filtration tank 2, a material inlet and outlet assembly 3, a filtration mechanism 4 and a driving mechanism 5, the material inlet and outlet assembly 3 and the vacuum filtration tank 2 are positioned in the shell 1, the material inlet and outlet assembly is positioned above the vacuum filtration tank, the filtration mechanism is positioned below the shell, and the driving mechanism is positioned above the shell.
As shown in fig. 3, the above-mentioned casing 1 includes a casing main body portion, which is formed by fixedly connecting an upper sealing head 13, an upper cylinder 15, a lower cylinder 17 and a lower sealing head 110 sequentially through welding, and includes an upper machine seal 11, a manhole 12, an upper flange 14, a lower flange 16, a solid discharge port 19, a lower machine seal 112, a connecting pipe flange 18, a support 114 and a support leg 115, wherein the upper machine seal 11 is used for sealing between the casing 1 and a driving mechanism, and the lower machine seal 112 is used for connecting between the casing and a suction filtration pipe. The solid discharge port 19 is preferably disposed at the housing body below the above-mentioned discharging scraper and discharge shovel, and the purpose of this design is: the filter cake on the vacuum suction filter tank is prevented from being too thick to influence the suction filtration washing efficiency.
A liquid level meter and a liquid level sensor 111 are arranged below the inside of the shell, and the liquid level meter is used for displaying the accumulated water amount inside the shell in real time; the liquid level sensor is used for collecting and conveying the liquid level condition inside the shell to the outside in real time, the liquid level sensor is externally connected with an alarm device, and when the accumulated water inside the shell reaches a certain warning value, the alarm immediately sends an alarm signal to the outside to prompt an operator to process in time; the shell body is also provided with a sight glass, an illuminating lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe 113, wherein the flushing pipe 113 is used for flushing the closed continuous filtering washer.
As a main innovation point of the present invention, as shown in fig. 4 and 5, the vacuum filtration tank is designed as a rotary structure, and is driven by a driving mechanism to continuously rotate in a shell, and comprises an upper shell flange 21, a shell side flange 22, a cleaning discharging baffle assembly 23 and a lower shell flange 24, wherein the upper flange of the vacuum filtration tank is provided with a filter cloth, a supporting net and a bracket. The invention creatively sets the vacuum filtration tank as a rotary structure, and the scraper is of a fixed structure, so that the filter cake of insoluble products formed on the vacuum filtration tank is continuously scraped and collected by the scraper, the filter cake is maintained at a thinner thickness, the further suction filtration washing work is not influenced, and the corresponding slurry and washing liquid realize continuous feeding, thereby meeting the requirements of continuous operation.
As shown in fig. 6 to 9, the feeding and discharging assembly 3 comprises a central disc fixing frame 31, a discharging scraper blade 32, a discharging shovel 33, a hollow groove 34, a slurry distribution groove and a washing liquid distribution groove, wherein the central disc fixing frame 31 is fixed in a shell, the vacuum suction filter groove is positioned below the central disc fixing frame, the discharging scraper blade 32, the slurry distribution groove and the washing liquid distribution groove are respectively connected with the central disc fixing frame 31, the slurry distribution groove and the washing liquid distribution groove are arranged around the center of the vacuum suction filter groove along the radial direction, the slurry distribution groove and the washing liquid distribution groove are respectively connected with a corresponding slurry inlet and a corresponding washing liquid inlet, slurry uniformly flows into the vacuum suction filter groove through the slurry distribution groove, and a washing area is formed through the washing liquid distribution groove so as to wash insoluble substances in the slurry; when the filter cake formed by insoluble substances in the vacuum filtration tank reaches a certain thickness, the filter cake is scraped out of the vacuum filtration tank through an inclined scraping surface at the lower end of the blanking scraper.
The slurry distribution chute and the washing liquid distribution chute main body are composed of a feeding shovel 35, the feeding shovel 35 comprises a feeding shovel baffle 351, a feeding shovel lower shovel member 352, feeding shovel sawteeth 353 and a feeding square pipe 354, and tooth-shaped overflow ports are respectively distributed on the upper parts of the two side walls of each feeding shovel, which extend along the radial direction of the vacuum suction filter tank, and are used for guaranteeing that the slurry and the washing liquid are uniformly distributed along the radial direction of the vacuum suction filter tank. When the device works, the external slurry supply device and the washing liquid supply device supply slurry to the slurry distribution groove and the feeding square pipes in the washing liquid distribution groove through the corresponding slurry inlets and the washing liquid inlets, and when the slurry and the washing liquid in the square pipes are full, the slurry and the washing liquid overflow along the tooth-shaped overflow ports and are uniformly distributed in the radial direction of the vacuum suction filter tank, so that uniform distribution is completed.
Preferably, the feeding and discharging assembly is provided with 1 square uniform slurry distribution groove and 3 square uniform washing liquid distribution grooves, the slurry distribution groove and the 3 washing liquid distribution grooves are radially arranged around the center of the vacuum suction filtration groove, the vacuum suction filtration groove is divided into six areas, the six areas are always in a negative pressure state for suction filtration operation, three areas are used for washing operation while suction filtration is carried out, the slurry distribution groove and the washing liquid distribution groove are respectively located at the junction of the two areas, so that the material can be washed repeatedly, and the material washing quality and the whole working efficiency are improved.
The discharge shovel comprises a discharge shovel main body 333, a discharge shovel supporting plate 331, a discharge shovel front bending plate 332 and a discharge shovel tetrafluoro plate 334, wherein the discharge shovel supporting plate is positioned below the discharge shovel main body, and the discharge shovel tetrafluoro plate is positioned at the front end of the discharge shovel.
As shown in fig. 10, the suction filtration mechanism comprises a liquid outlet flange 41, a sheath 42, a tetrafluoro sleeve 43, a lower machine seal 44, a central disc connecting flange 45 and a suction filtration pipe 46, wherein the central disc connecting flange is used for fixedly connecting the suction filtration mechanism with a vacuum suction filtration tank, the suction filtration mechanism is in sealing fit with a shell through a tetrafluoro sealing device, the tetrafluoro sealing device comprises the sheath 42 and the tetrafluoro sleeve 43, the suction filtration pipe extends into the sheath of the tetrafluoro sealing device, the tetrafluoro sealing device is in sealing connection with the suction filtration pipe through the tetrafluoro sleeve, the lower end of a box body of the tetrafluoro sealing device is provided with a flange for supporting the sealing device, the lower end of the suction filtration mechanism is provided with the liquid outlet flange which is used for fixedly connecting the outer liquid outlet collecting device, and the lower machine seal is used for connecting the shell with the tetrafluoro sealing device.
Furthermore, the liquid enters the suction filtration tube in a mode of gravity self-flowing and vacuum suction filtration in the vacuum suction filtration groove, and is discharged out of the device through the suction filtration tube, so that the liquid discharge rate is greatly improved.
As shown in fig. 11, the driving mechanism includes a speed reducer 51, an explosion-proof motor 52, a frame 53, a motor flange 54, a roller bearing 55, a bearing housing 56, an upper center plate connecting flange 57, and a tetrafluoro oil seal 58. The driving mechanism is fixedly connected with the vacuum filtration tank through an upper center plate connecting flange, the rotation of the vacuum filtration tank is realized through the driving mechanism, a slurry distribution groove, a washing liquid distribution groove and a discharging scraper are arranged above the vacuum filtration tank, the slurry distribution groove and the washing liquid distribution groove are communicated with a corresponding slurry inlet and a corresponding washing liquid inlet, and the slurry inlet and the washing liquid inlet are connected with an external slurry supply device and a washing liquid supply device through an upper flange and a lower flange on the shell.
The explosion-proof motor, the speed reducer and the motor solid shaft in the driving mechanism are sequentially connected in a transmission mode, the explosion-proof motor and the speed reducer are arranged above the frame, and the part, in transmission connection with the explosion-proof motor, of the speed reducer is connected with the frame in a sealing mode. Further preferably, the motor is an explosion-proof variable frequency motor, the speed reducer is a speed reducer for a disc feeder, and the illuminating lamp is an explosion-proof lamp. The driving mechanism is mainly used for driving the vacuum filtration tank to rotate, during operation, slurry is uniformly distributed on the vacuum filtration tank through the slurry distribution tank, liquid in the slurry is removed through suction filtration, insoluble substances in the slurry are continuously reserved on the upper part of the vacuum filtration tank, and the insoluble substances are cleaned through a cleaning area formed by the washing liquid distribution tank under the rotation of the vacuum filtration tank, so that the purity of a product is ensured.
The vacuum filtration washing machine comprises the following specific working steps:
the slurry is uniformly distributed on the vacuum suction filter tank through the slurry distribution tank, liquid in the slurry is removed through suction filtration, insoluble substances in the slurry are continuously remained at the upper part of the vacuum suction filter tank and pass through a cleaning area formed by the washing liquid distribution tank under the rotation of the vacuum suction filter tank so as to clean the insoluble substances, the purity of a product is ensured, and meanwhile, the slurry on the vacuum suction filter tank is always in a negative pressure suction filtration state, and liquid components in the slurry are continuously sucked into a housing below the vacuum suction filter tank and are discharged through a suction filtration pipe;
the feeding and discharging assembly is provided with 1 square uniform slurry distribution groove and 3 square uniform washing liquid distribution grooves which are radially arranged around the center of the vacuum suction filtration groove, the vacuum suction filtration groove is divided into six areas, and suction filtration operation is carried out in the six areas always under the negative pressure state. When the filter cake formed by the insoluble substances reaches a certain thickness, the filter cake contacts the bottom of the blanking scraper, is scraped out of the vacuum filtration groove by an inclined scraping surface at the lower end of the blanking scraper and falls into a solid outlet, and is collected by external equipment;
in the process, the slurry is continuously fed and distributed, insoluble products are continuously scraped off and collected, the reduction of production efficiency caused by frequently opening a blanking valve in the traditional intermittent operation process is avoided, and large-scale production can be realized.
As shown in fig. 12, a schematic structural view of the dryer of the present invention is shown, and the main components include a frame 61, a cylinder 62, a top cover 63, a filter rod 64, a vacuum tube 65, a first gear 66, and a driving motor 67.
The operation of the continuous reaction, crystallization, filtration, washing and drying system according to the present invention will be described below.
Step one: firstly, materials enter a material mixing tank through a material inlet pipe, the materials are uniformly stirred through a stirring device, and the materials are conveyed into a reactor under the conveying action of a pump after being uniformly stirred;
step two: in the reactor, the material reacts with the solvent flowing in from the reaction solvent inlet, and the reaction crystallization process is completed under the action of the stirring device, and then the material is conveyed from the reaction kettle to the vacuum filtration washing machine.
Step three: the washing liquid input from the washing solvent inlet is matched with the stirring device to filter and wash the product.
Step four: after the filtration and the washing are completed, the washing liquid flows into a recovery tank through a connecting pipe on the vacuum filtration washing machine for recovery treatment.
Step five: the washed product flows into the dryer unit from the solid product outlet of the vacuum filtering washer, the product is dried through the stirring device and the inlet and outlet circulation of the heating medium, and the dried product is discharged and discharged through the discharging pipe on the dryer unit.
The continuous reaction, crystallization, filtration, washing and drying system provided by the invention has reasonable layout, the products gradually finish the operation of the respective chemical units, the continuous operation from reaction, filtration, washing and drying to collection of the products is realized, the working efficiency is improved, and the productivity is enlarged.
The parts not described in the invention can be realized by referring to the prior art.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto.
Although terms such as housing, vacuum pump tank, feed and discharge assembly, pump filtration mechanism, drive mechanism, upper seal, manhole, etc. are used more herein, the use of other terms is not precluded and is merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
It should be further understood that the specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (5)
1. A continuous reaction, crystallization, filtration, washing, drying system, characterized in that: the device comprises a batching unit, a reaction unit, a vacuum filtering unit, a drying unit and a storage unit which are sequentially connected, wherein the batching unit is used for providing materials for the reaction unit, the materials enter the vacuum filtering unit for solid-liquid separation after reacting in the reaction unit, the drying unit is used for drying formed powder materials, and the materials dried by the drying unit enter the storage unit;
the vacuum filter unit comprises a vacuum filter washing machine, wherein the vacuum filter washing machine comprises a shell, a vacuum suction filter tank, a feeding and discharging component, a suction filter mechanism and a driving mechanism;
the material inlet and outlet assembly and the vacuum filtration tank are positioned in the shell, and the material inlet and outlet assembly is positioned above the vacuum filtration tank; the suction filter mechanism is positioned below the shell, and the driving mechanism is positioned above the shell;
the feeding and discharging assembly comprises a central disc fixing frame, a discharging scraper blade, a discharging shovel, a hollow groove, a slurry distribution groove and a washing liquid distribution groove, wherein the central disc fixing frame is fixed in the shell, the vacuum suction filter groove is positioned below the central disc fixing frame, and the discharging scraper blade, the slurry distribution groove and the washing liquid distribution groove are respectively connected with the central disc fixing frame; the slurry distribution groove and the washing liquid distribution groove are arranged around the center of the vacuum suction filtration groove along the radial direction, the slurry distribution groove and the washing liquid distribution groove are respectively connected with a corresponding slurry inlet and a washing liquid inlet, slurry uniformly flows into the vacuum suction filtration groove through the slurry distribution groove, and a cleaning area is formed through the washing liquid distribution groove so as to clean insoluble substances in the slurry; when a filter cake formed by insoluble substances in the vacuum filtration tank reaches a certain thickness, scraping the filter cake out of the vacuum filtration tank through an inclined scraping surface at the lower end of the blanking scraper;
the upper part of the vacuum filtration tank is connected with the driving mechanism, and the vacuum filtration tank can continuously rotate in the shell under the action of the driving mechanism;
the lower part of the vacuum suction filtration groove is connected with the suction filtration mechanism, and liquid in the vacuum suction filtration groove enters the suction filtration mechanism for suction filtration under the action of gravity;
the main structures of the slurry distribution chute and the washing liquid distribution chute are composed of a plurality of feeding shovels, each feeding shovel comprises a feeding shovel baffle, a feeding shovel lower shovel piece, feeding shovel sawteeth and a feeding square pipe, and tooth-shaped overflow ports are respectively distributed on the upper parts of the two side walls of each feeding shovel, which extend along the radial direction of the vacuum suction filtration chute, and are used for guaranteeing uniform distribution of slurry and washing liquid along the radial direction of the vacuum suction filtration chute; the vacuum suction filter comprises a feeding and discharging assembly, a discharging assembly and a washing assembly, wherein the feeding and discharging assembly is provided with 1 square uniform slurry distribution chute and 3 square uniform washing liquid distribution chute, the slurry distribution chute and the washing liquid distribution chute divide a vacuum suction filter tank into six areas, the six areas are always in a negative pressure state for suction filtration operation, three areas perform washing operation while suction filtration, and the slurry distribution chute and the washing liquid distribution chute are respectively positioned at the junction of the two areas;
the drying unit is formed by connecting 2-3 double-cone rotary vacuum multifunctional dryers in parallel, and materials treated by the vacuum filtering washing machine enter each double-cone rotary vacuum multifunctional dryer respectively for drying and are conveyed to the storage unit after being dried;
the double-cone rotary vacuum multifunctional dryer comprises a barrel body, wherein the barrel body consists of an inner barrel body and an outer barrel body, the inner barrel body is in a vacuum state, a jacket structure is formed between the inner barrel body and the outer barrel body, hot water or hot steam is introduced into the jacket structure to enable the inner barrel body and materials to exchange heat, and evaporated water vapor is discharged;
the shell comprises a shell body, wherein the shell body comprises a lower sealing head, a lower cylinder body, an upper cylinder body and an upper sealing head from bottom to top, a supporting structure is arranged below the shell body, the lower sealing head, the lower cylinder body, the upper cylinder body and the upper sealing head are sequentially and fixedly connected together in a welding mode, the supporting structure comprises a support and supporting legs, the top of the support is connected with the shell body, and the bottom of the support is connected with the supporting legs; a liquid level meter and a liquid level sensor are arranged below the inside of the shell, and the liquid level meter is used for displaying the accumulated water amount inside the shell in real time; the liquid level sensor is used for collecting and conveying the liquid level condition inside the shell to the outside in real time, the liquid level sensor is externally connected with an alarm device, and when the accumulated water inside the shell reaches a certain warning value, the alarm immediately sends an alarm signal to the outside to prompt an operator to process in time; the shell main body is also provided with a sight glass, an illuminating lamp, a vacuum pressure gauge, a safety access hole and a flushing pipe;
the suction filtration mechanism comprises a liquid outlet flange, a tetrafluoro sealing device, a lower machine seal, a central disc connecting flange and a suction filtration tube, wherein the central disc connecting flange is used for fixedly connecting the suction filtration mechanism with a vacuum suction filtration groove, the suction filtration mechanism is in sealing fit with the shell through the tetrafluoro sealing device, the tetrafluoro sealing device comprises a sheath and a tetrafluoro sleeve, the suction filtration tube stretches into the sheath, the tetrafluoro sealing device is in sealing connection with the suction filtration tube through the tetrafluoro sleeve, the lower end of a box body of the tetrafluoro sealing device is provided with a flange used for supporting the tetrafluoro sealing device, the liquid outlet flange is used for fixedly connecting with an external liquid outlet collecting device, and the lower machine seal is used for connecting the shell with the tetrafluoro sealing device.
2. A continuous reaction, crystallization, filtration, washing, drying system according to claim 1, characterized in that: the vacuum filtration tank is of a housing structure, the upper flange of the vacuum filtration tank is provided with filter cloth, a support net and a bracket, the support net is positioned on the bracket, and the filter cloth is positioned on the support net; the slurry distribution groove is provided with one square washing liquid distribution groove, three square washing liquid distribution grooves are formed, and the slurry inlet and the washing liquid inlet are respectively connected with an external slurry supply device and a washing liquid supply device through an upper flange and a lower flange on the shell.
3. A continuous reaction, crystallization, filtration, washing, drying system according to claim 1, characterized in that: an upper machine seal and a lower machine seal are respectively arranged at the top and the bottom of the shell body, the upper machine seal is used for sealing the shell and the driving mechanism, and the lower machine seal is used for sealing the shell and the suction filtration mechanism; the shell body on still be provided with manhole and solid discharge gate, the solid discharge gate set up the unloading scraper blade and the corresponding below shell body department of ejection of compact shovel.
4. A continuous reaction, crystallization, filtration, washing, drying system according to claim 1, characterized in that: the driving mechanism comprises a speed reducer, an explosion-proof motor, a frame, a motor flange, a roller bearing, a bearing seat, an upper central disk connecting flange and a tetrafluoro oil seal, and is fixedly connected with the vacuum filtration tank through the upper central disk connecting flange and driven by the driving mechanism to realize the rotation of the vacuum filtration tank; the explosion-proof motor, the speed reducer and a solid shaft of the motor are sequentially in transmission connection, the explosion-proof motor and the speed reducer are arranged above the frame, and the part, in transmission connection with the explosion-proof motor, of the speed reducer is in sealing connection with the frame; the discharging shovel comprises a discharging shovel main body, a discharging shovel supporting plate, a discharging shovel front bending plate and a discharging shovel tetrafluoro plate, wherein the discharging shovel supporting plate is positioned below the discharging shovel main body, and the discharging shovel tetrafluoro plate is positioned at the front end of the discharging shovel.
5. Use of a continuous reaction, crystallization, filtration, washing, drying system according to any one of claims 1-4 in pharmaceutical chemical production equipment.
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| CN111203162A (en) * | 2020-03-12 | 2020-05-29 | 无锡市张华医药设备有限公司 | Three-dimensional reaction, crystallization, filtration, washing, drying five-in-one system |
| CN114773362B (en) * | 2022-06-15 | 2023-12-29 | 上海欣峰制药有限公司 | Cefoxitin sodium compound and preparation method thereof |
| CN115253457A (en) * | 2022-08-23 | 2022-11-01 | 三门峡义翔铝业有限公司 | Flat disc filter and filtering method thereof |
| CN116899520A (en) * | 2023-07-14 | 2023-10-20 | 中国科学院广州能源研究所 | A continuous system for rapid reaction crystallization preparation of energetic materials |
| CN119701389A (en) * | 2024-12-26 | 2025-03-28 | 浙江索孚科技有限公司 | Continuous full-closed solid-liquid separation system |
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