CN119139727A - Vacuum distillation device and system thereof - Google Patents
Vacuum distillation device and system thereof Download PDFInfo
- Publication number
- CN119139727A CN119139727A CN202411109621.3A CN202411109621A CN119139727A CN 119139727 A CN119139727 A CN 119139727A CN 202411109621 A CN202411109621 A CN 202411109621A CN 119139727 A CN119139727 A CN 119139727A
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- China
- Prior art keywords
- pipe
- vacuum distillation
- vacuum
- tube body
- tail gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005292 vacuum distillation Methods 0.000 title claims abstract description 64
- 238000004821 distillation Methods 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000011068 loading method Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims description 16
- 239000000428 dust Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims 7
- 239000002912 waste gas Substances 0.000 claims 4
- 239000000126 substance Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000013014 purified material Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/10—Vacuum distillation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The application relates to the field of distillation, and provides a vacuum distillation device which comprises an upper pipe body used for loading raw materials and a lower pipe body used for collecting products, wherein the upper pipe body is provided with a first heating jacket, a funnel-shaped communicating pipe is arranged in the upper pipe body and is positioned above the raw materials, and the upper pipe body and the lower pipe body are communicated through the communicating pipe. The application also provides a vacuum distillation system, which can keep the distillation device operating under good conditions and improve the distillation stability and throughput.
Description
Technical Field
The application relates to the field of distillation, in particular to a vacuum distillation device and a system thereof.
Background
Vacuum distillation purification is a technique for removing impurities in a substance to be purified based on the difference in saturated vapor pressure between the substance to be purified and other substances as impurities. The method is widely applied to the preparation of high-purity materials in various fields, utilizes different volatilities of components in distilled substances, heats distilled substances under low pressure, and volatilizes some components by controlling the distillation temperature so as to achieve the aim of separating and purifying other non-volatile substances.
CN110394205A discloses a distiller, which comprises a distillation tube, communicating tube and communicating tube, the distillation tube is made by quartz material, and the distillation tube is arranged in accuse temperature electric heating cover, the distillation tube is equipped with the distillation chamber, distillation chamber bottom is equipped with the feed liquor mouth that communicates the distillation chamber, communicating tube is equipped with the collection chamber, collection chamber bottom is equipped with the fraction collection mouth that communicates the collection chamber, communicating tube is located the distillation tube below, the upper end of communicating tube extends to distillation chamber top, the lower extreme of communicating tube extends to collection chamber bottom, the gas vent of putting outward is seted up at the top of communicating tube. The distillation process can be summarized by combining the specifications of the scheme, namely, the raw materials are vaporized and enter the top of the communicating pipe, and then the vapor flows into the communicating pipe at the bottom along the communicating pipe to be condensed. On this basis, it can be seen from the drawings that the communicating tube is a straight tube protruding from the distillation tube, and the evaporated gas rapidly enters the communicating tube with a small amount of impurities, thereby causing the purity of the final extract to be lowered.
Based on the above, the technical problem to be solved in the present application is how to improve the structure of the vacuum distillation apparatus to further improve the purity of the extract.
Disclosure of Invention
In order to solve the technical problems, the application provides a vacuum distillation device, which has the structure that raw materials can be repeatedly distilled, so that the purity of an extract is further improved, and simultaneously, the application also provides a vacuum distillation system, which can keep the distillation device to operate under good conditions, and improve the stability and the throughput of distillation.
The technical scheme of the application is as follows:
the utility model provides a vacuum distillation device, is including being used for loading the last body of raw materials, the lower body that is used for collecting the product, goes up the body and is provided with first heating jacket, is provided with the communicating pipe of funnel shape and communicating pipe in the last body and is located the top of raw materials, goes up body and lower body and communicates through communicating pipe.
When the raw materials in the upper tube body are heated and evaporated, part of generated steam is directly conveyed to the lower tube body through the gap between the communicating tube and the upper tube body under the action of air pressure and heat, and the other part of generated steam is adhered to the outer surfaces of the upper tube body and the communicating tube and is condensed into liquid drops, and the liquid drops fall into the raw materials again and are repeatedly distilled, so that the purity is further improved.
In the vacuum distillation device, the upper pipe body is provided with an evacuation port communicated with an external air extractor, and the lower pipe body is provided with an exhaust port communicated with an external exhaust gas treatment device.
In the vacuum distillation device, the upper end of the upper pipe body is provided with the detachable cover plate, the upper pipe body is internally provided with the support pipe communicated with the lower pipe body, the support pipe extends into the upper pipe body, and the communicating pipe is detachably arranged on the support pipe.
In the vacuum distillation apparatus described above, the lower tube body is provided with the second heating jacket.
The vacuum distillation system comprises at least two vacuum distillation devices, and further comprises an air extractor for regulating and controlling the vacuum state of all the vacuum distillation devices, wherein the air extractor is provided with a main pipeline and a plurality of branch pipelines, one end of each branch pipeline is communicated with the main pipeline, and the other end of each branch pipeline is communicated with the upper pipe body.
The distillation system controls the vacuum states of all the vacuum distillation devices through the air extractor, so that the vacuum degree of each vacuum distillation device is consistent, and the content of purified matters of each vacuum distillation device is consistent as much as possible.
The vacuum distillation system further comprises a filtering device for collecting dust generated in the distillation process, one end of the branch pipeline is communicated with the main pipeline, the other end of the branch pipeline is communicated with the filtering device, and the filtering device is provided with a dust collecting pipe communicated with an emptying port of the upper pipe body, an air inlet pipe communicated with the outside and a resistance vacuum gauge for detecting the vacuum degree of the filtering device.
In the vacuum distillation system, the vacuum distillation devices are arranged in a group, and are respectively communicated with the filtering device through dust collecting pipes.
In the vacuum distillation system, the tail gas treatment device is provided with a tail gas main pipe and a plurality of tail gas branch pipes, one end of each tail gas branch pipe is communicated with the tail gas main pipe, and the other end of each tail gas branch pipe is communicated with the exhaust gas port of the lower pipe body.
In the vacuum distillation system, the air extracting device comprises a primary vacuum pump, a secondary vacuum pump and a negative pressure tank which are sequentially connected, and the main pipeline is communicated with the negative pressure tank.
In the above vacuum distillation system, the vacuum distillation system further comprises an exhaust gas treatment device, wherein the exhaust gas treatment device is provided with an exhaust gas main pipe, a first exhaust gas branch pipe connected with the primary vacuum pump, and a second exhaust gas branch pipe connected with the secondary vacuum pump.
One of the above technical solutions of the present application has at least one of the following advantages or beneficial effects:
In addition, the upper pipe body is provided with a raw material cavity and a steam cavity by the matching relationship of the upper pipe body and the funnel-shaped communicating pipe, so that part of steam can be reserved in the raw material cavity to be distilled repeatedly, and the purity is further improved.
The vacuum distillation system controls the vacuum states of all the vacuum distillation devices through the air extractor, so that the vacuum degrees of all the vacuum distillation devices are consistent, the content of purified matters of all the vacuum distillation devices is consistent as much as possible, and the production capacity can be improved.
Drawings
FIG. 1 is a schematic view showing the structure of a vacuum distillation apparatus according to embodiment 1 of the present application;
fig. 2 is a schematic layout of a vacuum distillation apparatus system according to embodiment 2 of the present application.
Reference numerals illustrate:
1. The vacuum distillation device comprises a vacuum distillation device 11, an upper pipe body 12, a lower pipe body 13, a communicating pipe 14, a first heating sleeve, a second heating sleeve 15, a 16, a supporting pipe 17, a cover plate, a raw material cavity, a B, a steam cavity, a 2, an air extractor 21, a primary vacuum pump 22, a secondary vacuum pump 23, a negative pressure tank 101, a main pipe 102, a branch pipe 3, a filtering device 201, a dust collecting pipe 202, an air inlet pipe 110, an electromagnetic control valve 120, a resistance vacuum gauge 301, an exhaust main pipe 302, a first exhaust branch pipe 303, a second exhaust branch pipe 401, an exhaust main pipe 402 and an exhaust branch pipe.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
The utility model provides a vacuum distillation device, includes the last body 11 that is used for loading the raw materials, is used for collecting the lower body 12 of product, goes up body 11 and is provided with first heating jacket 14, is provided with funnel-shaped communicating pipe 13 and communicating pipe 13 in going up body 11 and is located the top of raw materials, goes up body 11 and lower body 12 and communicates through communicating pipe 13.
In this embodiment, a frame for mounting and supporting the vacuum distillation apparatus 1 is also included.
In practical use, the upper pipe body 11 and the funnel-shaped communicating pipe 13 are in a matching relationship, so that a raw material cavity A positioned below the communicating pipe 13 and a steam cavity B positioned above the communicating pipe 13 are formed in the upper pipe body as shown in fig. 1.
In practical application, after the raw materials in the upper tube body 11 are heated and evaporated, a part of generated steam enters the steam cavity B through a gap between the communicating tube 13 and the upper tube body 11, the part of steam is conveyed to the lower tube body 12 through the communicating tube 13 under the action of air pressure and heat, another part of generated steam is adhered to the inner wall of the upper tube body 11 and the outer surface of the funnel-shaped communicating tube 13 to be condensed into liquid drops, and the liquid drops fall into the raw material cavity A again and are repeatedly distilled, so that the purity is further improved.
In this embodiment, the lower tube body 12 is provided with a second heating jacket 15. With the above design, the second heating jacket 15 keeps the product in a liquid state by keeping the temperature of the lower tube 12. Further, in practical use, the temperature of the first heating jacket 14 is determined by the boiling point and vapor pressure of impurities and purified substances in the raw materials, while the temperature of the second heating jacket 15 is smaller than the temperature of the first heating jacket 14 to enable vapor to be delivered to the lower tube body 12 through the communicating tube 13, and the speed of delivery is adjusted by adjusting the pressure difference in the tubes by independently controlling the temperatures of the first heating jacket 14 and the second heating jacket 15, and furthermore, the lower tube body 12 maintains the temperature of the purified substances.
In practical application, the upper pipe body 11 is provided with an evacuation port communicated with the external air extractor 2, and the lower pipe body 12 is provided with an exhaust port communicated with the external exhaust gas treatment device in order to maintain the safety of the working environment and implement the environment protection concept.
In the embodiment, the upper end of the upper pipe body 11 is provided with a detachable cover plate 17, the upper pipe body 11 is internally provided with a support pipe 16 communicated with the lower pipe body 12, the support pipe 16 extends into the upper pipe body 11, and the communicating pipe 13 is detachably arranged on the support pipe 16.
Under the above design, the charging process of the embodiment is to open the cover plate 17, put the raw material into the raw material cavity a of the upper tube body 11, for example, powdered crude selenium, specifically, put the raw material between the support tube 16 and the upper tube body 11, put the communicating tube 13 after completing charging, the communicating tube 13 passes through the support tube 16 to communicate the upper tube body 11 and the lower tube body 12, and cover the cover plate 17. In addition, be equipped with on the stay tube 16 with funnel-shaped communicating pipe 13 cooperation recess in order to closely laminate both, the recess on the one hand can stably support communicating pipe 13, on the other hand prevents to have the space that can let steam pass through between the two, and leads to the product to remain in the space, and then reduces the collection rate.
Example 2
A vacuum distillation system comprises 12 vacuum distillation devices 1 according to the embodiment 1, wherein the vacuum distillation devices 1 are grouped into a group, the vacuum distillation system further comprises an air extracting device 2 for regulating and controlling the vacuum state of all the vacuum distillation devices 1 and a filtering device 3 for collecting dust generated in the distillation process, the air extracting device 2 is provided with a main pipeline 101 and 6 branch pipelines 102, one end of each branch pipeline 102 is communicated with the main pipeline 101, the other end of each branch pipeline 102 is communicated with the filtering device 3, the filtering device 3 is provided with a dust collecting pipe 201 communicated with an upper pipe body 11, an air inlet pipe 202 communicated with the outside and a resistance vacuum gauge 120 for detecting the vacuum degree of the filtering device 3, and the two vacuum distillation devices 1 are communicated with the filtering device 3 through the dust collecting pipe 201.
In this embodiment, the branch pipe 102, the dust collecting pipe 201 and the air inlet pipe 202 are all vacuum hoses and are all provided with electromagnetic control valves 110, the air extractor 2 comprises a primary vacuum pump 21, a secondary vacuum pump 22 and a negative pressure tank 23 which are sequentially connected, and the main pipe 101 is communicated with the negative pressure tank 23. Specifically, the primary vacuum pump 21 is a roots vacuum pump, the secondary vacuum pump 22 is a backing pump of the roots vacuum pump, and those skilled in the art can select different types of backing pumps according to different vacuum degrees and pumping rates, such as a water ring vacuum pump, a rotary vane vacuum pump, a vertical oil-free vacuum pump, a reciprocating vacuum pump, etc., so the types of backing pumps are not limited in this embodiment.
Under the design, when vacuumizing is needed, the electromagnetic control valve 110 of the branch pipe 102 and the dust collecting pipe 201 is opened, the electromagnetic control valve 110 of the air inlet pipe 202 is closed, under the action of a vacuum pump, gas in the vacuum distillation device 1 is pumped into the negative pressure tank 23 through the dust collecting pipe 201, the branch pipe and the main pipe 101 in sequence, in addition, in order to detect the vacuum state in the vacuum system in the whole course, the negative pressure tank 23 is also connected with the resistance vacuum gauge 120, and when normal pressure is needed to be recovered, the electromagnetic control valve 110 of the air inlet pipe 202 is opened, the electromagnetic control valve 110 of the branch pipe 102 is closed, and the vacuum distillation device 1 naturally sucks air.
As the preference of the embodiment, the air extractor 2 is separated from the vacuum distillation device 1 in space independently, so that the substance components and noise pollution generated by the operation of a vacuum pump in the environment are reduced, and the uncertainty factor affecting the purity of the product is effectively reduced.
The distillation system controls the vacuum states of all the vacuum distillation devices 1 through the air extractor 2 so as to ensure that the vacuum degrees of all the vacuum distillation devices 1 are consistent, and further ensure that the purified material contents of all the vacuum distillation devices 1 are consistent as much as possible.
The device for treating the tail gas comprises a tail gas main pipe 401 and 8 tail gas branch pipes 402, wherein one end of each tail gas branch pipe 402 is communicated with the tail gas main pipe 401, and the other end of each tail gas branch pipe 402 is communicated with an exhaust gas port of the lower pipe body 12.
In this embodiment, the exhaust branch pipes 402 are provided with the electromagnetic control valves 110, and the electromagnetic control valves 110 of the exhaust branch pipes 402 are opened only when exhaust is required.
More specifically, in the above-described vacuum distillation system, an exhaust gas treatment device is further included, which is provided with an exhaust gas main pipe 301, a first exhaust gas branch pipe 302 connected to the primary vacuum pump 21, and a second exhaust gas branch pipe 303 connected to the secondary vacuum pump 22.
In this embodiment, the exhaust gas treatment device is not shown in the drawings, and a person skilled in the art may select different exhaust gas treatment devices according to different raw materials, and it is also within the scope of the present embodiment.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411109621.3A CN119139727A (en) | 2024-08-13 | 2024-08-13 | Vacuum distillation device and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411109621.3A CN119139727A (en) | 2024-08-13 | 2024-08-13 | Vacuum distillation device and system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119139727A true CN119139727A (en) | 2024-12-17 |
Family
ID=93813333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411109621.3A Pending CN119139727A (en) | 2024-08-13 | 2024-08-13 | Vacuum distillation device and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119139727A (en) |
-
2024
- 2024-08-13 CN CN202411109621.3A patent/CN119139727A/en active Pending
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