CN118993473A

CN118993473A - Sludge recycling and granulating device

Info

Publication number: CN118993473A
Application number: CN202411410447.6A
Authority: CN
Inventors: 钱洲; 乔楚; 杭建华
Original assignee: Wuhe Heze Circular Ecology Co ltd
Current assignee: Wuhe Heze Circular Ecology Co ltd
Priority date: 2024-10-10
Filing date: 2024-10-10
Publication date: 2024-11-22
Anticipated expiration: 2044-10-10
Also published as: CN118993473B

Abstract

The invention relates to the technical field of sludge resource utilization, and specifically discloses a sludge resource recovery and granulation device, comprising a mixing and conveying unit and an extrusion granulation unit, wherein the extrusion granulation unit comprises a vertically arranged feeding barrel, a second auger blade shaft is arranged inside the feeding barrel, a conical guide hopper is arranged directly below the feeding barrel, a rotating motor is arranged in the conical guide hopper, a granulation die barrel is connected to the upper end of the rotating motor, and a cutter which fits the outer cylindrical surface of the granulation die barrel is installed in the conical guide hopper; a fixing ring is arranged on the outer cylindrical surface of the feeding barrel extending into the granulation die barrel, and a guiding protrusion is arranged on the lower surface of the fixing ring; the sludge resource recovery and granulation device disclosed by the invention realizes online proportioning adjustment, stirring and mixing, and extrusion granulation of sludge and auxiliary fuel, realizes efficient operation of sludge resource recovery and treatment, and can make the size of biomass fuel particles finally prepared almost consistent, thereby improving granulation uniformity and granulation effect.

Description

Sludge recycling and granulating device

Technical Field

The invention relates to the technical field of sludge recycling, and particularly discloses a sludge recycling and granulating device.

Background

Sludge, a common industrial waste, can be converted into valuable resources by specific treatment methods. Some sludge with higher organic matter content can be mixed with combustion-supporting materials such as carbon powder, coke powder and the like, and the environment-friendly solid fuel can be obtained after extrusion granulation and drying. However, when the existing sludge is pelletized to prepare solid fuel, the sludge and the combustion-supporting material are required to be stirred firstly, and then the pelleting machine is used for extrusion pelleting, so that stirring equipment is required to be matched with the pelleting machine, a large amount of sludge and the combustion-supporting material are all mixed together, long-time stirring is required, and the proportion between the sludge and the combustion-supporting material cannot be adjusted in real time. In addition, extrusion of the existing granulator is carried out through a cutter Long Shezhou, and extrusion quantity cannot be accurately controlled when the cutter Long Shezhou extrudes materials, so that the length of cut particles is uneven.

The application discloses a vertical spiral pressurized sludge granulator, which consists of a bracket, a granulator device, a belt conveyor and a scraping plate, wherein the granulator device consists of a motor, a coupling, a main thrust bearing, a pressurizing screw, a main working cylinder, a particle-throwing head bearing, a shaft seal nut, a rotary particle-throwing head and a speed-reducing rotary disc. The granulator adopts a structure of matching the screw rod pressurization with the double-closed screw stator pressurization and the horn-shaped discharge hole, so that the extrusion force of sludge extrusion molding is increased, the strength of sludge molding particles is improved, the continuous operation efficiency is improved, and the sludge molding yield is increased; however, when the vertical spiral pressurizing sludge granulator extrudes sludge, the extrusion amount of the sludge cannot be accurately controlled through the wringing Long Shezhou, so that the size of the cut sludge particles is inconsistent, and the granulation uniformity and the granulation effect are affected. Therefore, the application provides a sludge recycling and granulating device capable of effectively solving the technical problems, aiming at the defects of the existing sludge granulator that the sludge and combustion-supporting materials are utilized to prepare the environment-friendly solid fuel through extrusion granulation.

Disclosure of Invention

The invention aims to provide a sludge recycling and granulating device, which solves the technical problems and defects of the existing sludge granulator in the process of preparing environment-friendly solid fuel by using sludge and combustion-supporting materials through extrusion granulation.

The invention is realized by the following technical scheme:

The utility model provides a mud recycling prilling granulator, includes the compounding conveying unit and the extrusion granulation unit that set up respectively in the upper and lower both ends of frame, the discharge part of compounding conveying unit is connected with the extrusion granulation unit, the extrusion granulation unit is including the feeding section of thick bamboo that sets up perpendicularly, the inside of feeding section of thick bamboo is provided with second hank Long Shezhou, and the upper end of feeding section of thick bamboo is provided with the second motor that is connected with second hank Long Shezhou, is located the fixed toper guide hopper that is provided with under the feeding section of thick bamboo, be provided with the rotating electrical machines in the toper guide hopper, the upper end of rotating electrical machines is connected with the granulation mould section of thick bamboo, and has seted up the shaping nib on the outer disc of granulation mould section of thick bamboo, fixed mounting has the cutter that laminates with the external disc of granulation mould section of thick bamboo in the toper guide hopper;

The upper surface of the granulating mold cylinder is provided with a round opening which is used for extending into the feeding mold cylinder, the outer circular surface of the feeding mold cylinder extending into the granulating mold cylinder is provided with a fixed ring, the lower surface of the fixed ring is provided with a guide protruding part, an extrusion ring plate is arranged in the feeding mold cylinder below the fixed ring, the extrusion ring plate is connected with the upper end of the granulating mold cylinder through a guide rod and a spring, and the upper surface of the extrusion ring plate is provided with an extrusion guide wheel which acts with the guide protruding part.

As the further setting of above-mentioned scheme, compounding conveying unit is including fixing the outer cylinder in the frame upper end, the both ends of outer cylinder are provided with mud respectively and throw portion and discharge part, be provided with the interior barrel that one end stretches out in the outer cylinder with one heart, the tip that the interior barrel stretched out the outer cylinder is provided with the batching storage hopper, and the feed opening has been seted up to the inner lower surface of interior barrel, be provided with first hank Long Shezhou in the interior barrel, and be provided with the first motor that is connected with first hank Long Shezhou on the outer terminal surface of interior barrel, the surface rotation of interior barrel is connected with the cavity rotary drum that stretches out the outer cylinder other end, and the outer end connection of cavity rotary drum has drive assembly, offer the through-hole that aligns with the feed opening on the cavity rotary drum of through-hole both sides is provided with helical blade and stirring portion respectively, and helical blade setting is in the one end that is close to mud throw portion.

As a further arrangement of the scheme, the end face of the hollow rotary drum extending out of the outer cylinder is provided with a through hole, and a heating rod extending into the hollow rotary drum and fixedly arranged relative to the hollow rotary drum is arranged in the through hole.

As a further arrangement of the scheme, the upper end of the outer cylinder is provided with the exhaust hole, the upper end of the outer cylinder is provided with the gas collecting box covering the exhaust hole, and the gas collecting box is sequentially connected with the filter box and the negative pressure air extractor through the air pipe.

As a further setting of above-mentioned scheme, drive assembly includes driving motor, all be provided with the belt pulley on driving motor's motor shaft and the outer tip of cavity rotary drum, two be provided with the drive belt between the belt pulley.

As a further arrangement of the scheme, the top end outer circular surface of the feeding cylinder is fixedly connected with the frame through a wing plate, and a receiving hopper connected with the discharging part is arranged on one side of the upper end of the feeding cylinder.

As a further arrangement of the scheme, the guide protruding part, the extrusion guide wheel and the cutter are uniformly arranged in the circumferential direction.

As a further setting of above-mentioned scheme, the frame comprises many spinal branch daggers and roof, compounding conveying unit sets up the upper surface at the roof, extrude the fixed lower extreme that sets up at the roof of granulation unit, and be provided with the control box on the dagger.

In the use process of the sludge recycling and granulating device disclosed by the invention, firstly, the sludge and the combustion-supporting material (such as carbon powder or coke powder) are subjected to online proportioning and blanking by a mixing and conveying unit, then, online rapid mixing is realized in the process of conveying and moving to an extrusion granulating unit, and the granulating slurry is obtained by braking.

The granulation slurry is then fed into a feed cylinder, which is fed into a granulation die cylinder by a second strand Long Shezhou and fills the granulation die cylinder space below the extrusion ring plate. Then, the granulating mold cylinder is driven to rotate at a set speed by the rotating motor, the granulating mold cylinder and the cutter are acted to finish cutting off the extruded materials in the rotating process, and the extruding ring plate is synchronously rotated along with the granulating mold cylinder, so that the extruding guide wheel and the guiding convex part are intermittently acted, the extruding ring plate can be pushed downwards for a certain distance when the extruding guide wheel and the guiding convex part are acted each time, in the process, the space for filling granulating slurry in the granulating mold cylinder is compressed, so that the granulating mold cylinder is uniformly extruded from surrounding forming mold holes and is subjected to the action of the cutter to finish cutting off, and meanwhile, the space for filling granulating slurry in the granulating mold cylinder each time is compressed equally, so that the size of biomass fuel particles cut off under the action of the cutter is almost consistent, and finally, the biomass fuel particles falling down after cutting off are intensively discharged by the conical guide hopper.

Advantageous effects

The sludge recycling and granulating device disclosed by the invention realizes on-line proportioning adjustment, stirring mixing and extrusion granulation of sludge and auxiliary fuel, realizes efficient operation of sludge recycling and treatment, and has a good use effect.

The extrusion granulating unit changes the traditional mode of adopting spiral blade extrusion, the synchronous rotation of the extrusion annular plate is driven by the rotation of the granulating die cylinder, and then the intermittent action of the extrusion guide wheel and the guide convex part is adopted in the rotation process of the extrusion annular plate, so that the granulating slurry filled in the granulating die cylinder each time is compressed to have the same volume, the granulating slurry can be uniformly extruded from all around forming die holes, and finally the granulating slurry is cut off under the action of a cutter, so that the particle size of the finally prepared biomass fuel is almost consistent, and the granulating uniformity and granulating effect are improved.

The mixing and conveying unit can be used for carrying out online quantitative mixing and stirring with the combustion-supporting material in the process of conveying the sludge, so that the proportion of the granulating slurry can be adjusted in real time; in addition, the mixture can be dried to a certain extent under the heating action of the heating rod, so that the viscosity of the mixture before granulation is effectively controlled, and meanwhile, hot and wet air generated by drying can be effectively treated and then discharged; the whole mixing conveying unit not only realizes online proportioning mixing, but also can perform predrying adjustment on the water content of the mixture, effectively ensures the granulating effect, and has various functions and excellent using effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a first angular perspective structure of the present invention;

FIG. 2 is a schematic view of a second angle perspective structure of the present invention;

FIG. 3 is a schematic internal perspective view of a mixing conveyor unit according to the present invention;

FIG. 4 is a schematic perspective view of a helical blade, a hollow drum, a stirring part, etc. in the present invention;

FIG. 5 is a schematic perspective view of an extrusion granulating unit in the present invention;

FIG. 6 is a schematic view showing the internal perspective structure of the extrusion granulating unit in the present invention;

Fig. 7 is a schematic diagram of a three-dimensional structure of a conical guide hopper, a cutter and the like in the invention.

Detailed Description

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The present application will be described in detail with reference to fig. 1 to 7, and examples.

Example 1

Embodiment 1 discloses a sludge recycling granulation device, and referring to fig. 1 and 2, a main body of the device comprises a frame 1, a control box 2, a mixing conveying unit 3 and an extrusion granulation unit 4. Wherein, frame 1 comprises many support columns 101 and roof 102, and control box 2 installs the side at support column 101, and compounding conveying unit 3 sets up the upper surface at roof 102, extrudes the below setting of granulation unit 4 and is connected with the discharge end of compounding conveying unit 3 at roof 102.

Referring to fig. 3 and 4, the mix feed unit 3 includes an outer cylinder 301 horizontally fixed to an upper surface of the top plate 102, a sludge feeding portion 302 provided at an upper surface of one end of the outer cylinder 301, and a discharging portion 303 provided at a lower surface of the other end of the outer cylinder 301. An inner cylinder 304 is concentrically provided inside the outer cylinder 301, and one end of the inner cylinder 304 is provided to extend out of the outer cylinder 301 from an end near the sludge addition portion 302, and then a blending hopper 305 is also provided to an upper end portion of the inner cylinder 304 extending out of the outer cylinder 301. The inner cylinder 304 is rotatably provided with a first winch Long Shezhou, the outer end surface of the inner cylinder 304 is provided with a first motor 307 for driving the first winch Long Shezhou 306, and finally the lower end of the end part of the inner cylinder 304 positioned in the outer cylinder 301 is provided with a discharging opening 3041.

A hollow rotary drum 308 is rotatably arranged on the outer surface of the inner cylinder 304, one end of the hollow rotary drum 308 extends out of the end face of the outer cylinder 301 from the side far away from the sludge adding part 302, a driving component 309 connected with the outer end of the hollow rotary drum 308 is arranged on the top plate 102, the hollow rotary drum 308 can be actively controlled to rotate on the outer circular surface of the hollow rotary drum 308 at a certain rotating speed through the driving component 309, the specific driving component 309 can be in the form of a driving motor, a belt pulley and a driving belt, finally, a through hole 3081 which is positioned at the same axial position with a blanking hole 3041 on the inner cylinder 304 is formed on the outer circular surface of the hollow rotary drum 308, and when the through hole 3081 rotates to be aligned with the blanking hole 3041 circumferentially, ingredients fed into the inner cylinder 304 can fall into the outer cylinder 301 through the blanking hole 3041 and the through hole 3081.

In addition, with the discharge port 3041 and the through port 3081 as partition points, the outer circumferential surface of the hollow drum 308 on the side close to the sludge adding portion 302 is provided with spiral blades 310, the outer circumferential surface of the hollow drum 308 on the side far from the sludge adding portion 302 is provided with a plurality of stirring portions 311, and the stirring portions 311 may be stirring bars, stirring blades or stirring teeth, and are uniformly distributed along the axial direction of the hollow drum 308.

Referring to fig. 2,5, 6 and 7, the extrusion granulating unit 4 includes a feeding cylinder 401 vertically provided, the top outer circumferential surface of the feeding cylinder 401 is fixedly connected with the top plate 102 by a wing plate 402, and then a receiving hopper 403 connected with the discharging portion 303 is further provided at the upper end side of the feeding cylinder 401. A second capstan Long Shezhou is rotatably provided in the feed cylinder 401, and a second motor 405 for driving the second capstan Long Shezhou 405 is provided on the top surface of the feed cylinder 401.

A conical guide hopper 406 fixedly connected with the frame 1 is arranged right below the feeding cylinder 401, a bracket 407 is arranged at the lower end of the conical guide hopper 406, then a rotary motor 408 is arranged on the bracket 407, and a granulating mould cylinder 409 is fixedly connected at the upper end of a motor shaft of the rotary motor 408. A plurality of molding holes 4091 are uniformly formed in the outer circumferential surface of the granulating mold 409, and then a plurality of cutters 410 are fixedly mounted in the tapered guide hopper 406, so that the cutting edge portions of the cutters 410 are attached to the outer circumferential surface of the granulating mold 409.

In addition, a circular opening for extending into the lower end of the feeding cylinder 401 is formed in the upper surface of the granulating cylinder 409, a fixing ring 411 is welded on the outer circular surface of the feeding cylinder 401 extending into the granulating cylinder 409, and a plurality of guide protruding portions 412 are uniformly arranged on the lower surface of the fixing ring 411. Inside the granulation die cylinder 409 below the fixed ring 411, an extrusion ring plate 413 is provided, and the outer diameter of the extrusion ring plate 413 is equal to the inner diameter of the granulation die cylinder 409. A pressing guide wheel 414 opposite to each guide boss 412 is provided on the pressing ring plate 413, and an annular surface formed by the pressing guide wheels 414 coincides with an annular surface formed by the guide bosses 412. A plurality of guide rods 415 penetrating the upper surface of the granulating cylinder 409 are arranged on the upper surface of the extruding ring plate 413 outside the extruding guide wheel 414, and a plurality of springs 416 are arranged between the top wall of the granulating cylinder 409 and the extruding ring plate 413.

In the sludge recycling and granulating apparatus disclosed in this example 1, when granulating sludge with high organic matter content, carbon powder is first charged into the batch hopper 305, and then the rotation speeds of the first motor 307 and the driving motor are controlled according to the ratio design. When the device is operated, the device is firstly put into the sludge adding part 302 through a slurry pump and a pipeline, then the sludge is gradually conveyed to the other end under the action of the spiral blade 310, meanwhile, carbon powder is conveyed to the position of the discharging opening 3041 through the first winch Long Shezhou, when the through opening 3081 rotates to be aligned with the circumference of the discharging opening 3041, the internal carbon powder quantitatively falls into the outer cylinder 301 to be mixed with the sludge, and then the stirring part 311 is used for fully stirring the sludge and the carbon powder in the continuous conveying process, so that the sludge and the carbon powder are fully mixed according to the proportion.

The mixed materials are fed into the feeding cylinder 401 through the discharging part 303, and then the feeding speed of the mixed materials is controlled by the second winch Long Shezhou to be fed into the granulating mould cylinder 409 and below the extruding ring plate 413. Meanwhile, the rotary motor 408 drives the granulating die cylinder 409 to rotate at a set speed in the conical guide hopper 406, the extruding ring plate 413 is synchronously driven to rotate in the process of rotating the granulating die cylinder 409, so that the extruding ring plate 413 and the fixed ring 411 relatively rotate, the extruding ring plate 413 moves downwards against the pulling force of the spring 416 when the extruding guide wheel 414 contacts the guide boss 412 each time, materials originally in the granulating die cylinder 409 are extruded, the materials uniformly move to the periphery, columnar materials are formed through the forming die holes 4091, meanwhile, the formed columnar materials can be cut off under the action of the cutter 410, and accordingly, equal-length combustion particles are prepared, finally, the combustion particles fall down from the lower end of the conical guide hopper 406 in a concentrated mode, and can be used as fuel after being dried.

Example 2

Example 2 discloses a sludge recycling and granulating device which is further optimally designed based on the technical scheme in example 1, and the same points as in example 1 are not described again.

Referring to fig. 1 and 3, in embodiment 2, a through hole is formed in the center of the end face of the hollow drum 308 extending beyond the outer cylinder 301, then a heating rod 5 extending into the hollow drum 308 is disposed along the through hole, the outer end of the heating rod 5 is fixedly connected to the upper end of the frame 1, and the effective heating area of the heating rod 5 corresponds to the hollow drum 308 of the stirring section 311.

In addition, a row of exhaust holes is opened at the upper end of the outer cylinder 301 in the corresponding region of the heating rod 5, and a gas collecting box 6 is arranged above the exhaust holes. A negative pressure air extracting device 7 and a filter box 8 are arranged on the top plate 102, a first air pipe 9 is connected between the negative pressure air extracting device 7 and the filter box 8, and then a second air pipe 10 is also arranged between the other end of the filter box 8 and the gas collecting box 6. The filter element in the filter box 8 at least comprises a drying layer and an activated carbon adsorption layer, so that moisture generated by drying the mixture can be filtered and dried by the filter element in the filter box 8, and then is discharged after peculiar smell is removed by adsorption.

Through above-mentioned improved design, this embodiment 2, when mud moisture content is higher, when the mixture that leads to its and carbon dust preparation can't reach the viscosity when pelletization, the accessible lets in the electric current to heating rod 5 and makes it generate heat, then cavity rotary drum 308 surface can heat up, make it heat and dry when stirring mud and carbon dust, the hot and humid gas that produces enters into rose box 8 under negative pressure suction, then discharge again can after the filter core filters in rose box 8, thereby can effectively control the mixture viscosity before pelletization, guarantee the follow-up pelletization effect.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. A sludge resource recovery granulation device, comprising a mixing and conveying unit and an extrusion granulation unit respectively arranged at the upper and lower ends of a frame, wherein the discharging portion of the mixing and conveying unit is connected to the extrusion granulation unit, and is characterized in that the extrusion granulation unit comprises a vertically arranged feeding barrel, a second auger blade shaft is arranged inside the feeding barrel, a second motor connected to the second auger blade shaft is arranged at the upper end of the feeding barrel, a conical guide hopper is fixedly arranged directly below the feeding barrel, a rotating motor is arranged in the conical guide hopper, a granulation die barrel is connected to the upper end of the rotating motor, and a forming die hole is opened on the outer circumferential surface of the granulation die barrel, and a cutting knife that fits the outer circumferential surface of the granulation die barrel is fixedly installed in the conical guide hopper;

The upper surface of the granulation die barrel is provided with a circular opening for inserting the feeding barrel, a fixing ring is arranged on the outer circular surface of the feeding barrel extending into the granulation die barrel, and a guide protrusion is arranged on the lower surface of the fixing ring, an extrusion ring plate is arranged in the feeding barrel below the fixing ring, the extrusion ring plate is connected to the upper end of the granulation die barrel through a guide rod and a spring, and an extrusion guide wheel acting with the guide protrusion is arranged on the upper surface of the extrusion ring plate.

2. The sludge resource recovery granulation device according to claim 1 is characterized in that the mixing and conveying unit comprises an outer cylinder fixed to the upper end of the frame, and the two ends of the outer cylinder are respectively provided with a sludge feeding part and a material discharging part, the inner cylinder body with one end extending out is concentrically arranged in the outer cylinder, the end of the inner cylinder body extending out of the outer cylinder is provided with a batching storage hopper, and a discharge opening is provided on the lower surface of the inner end of the inner cylinder body, the first auger blade shaft is provided in the inner cylinder body, and a first motor connected to the first auger blade shaft is provided on the outer end surface of the inner cylinder body, the outer surface of the inner cylinder body is rotatably connected with a hollow rotating cylinder extending out of the other end of the outer cylinder, and the outer end of the hollow rotating cylinder is connected to a driving assembly, the hollow rotating cylinder is provided with a through opening aligned with the discharge opening, and spiral blades and stirring parts are respectively provided on the hollow rotating cylinders located on both sides of the through opening, and the spiral blades are provided at one end close to the sludge feeding part.

3. The sludge resource recovery and granulation device according to claim 2 is characterized in that a through hole is opened on the end surface of the hollow drum extending out of the outer cylinder, and a heating rod is arranged in the through hole and extends into the hollow drum and is fixed relative to the hollow drum.

4. The sludge resource recovery and granulation device according to claim 3 is characterized in that an exhaust hole is opened at the upper end of the outer cylinder, and an air collecting box covering the exhaust hole is provided at the upper end of the outer cylinder, and the air collecting box is connected to a filter box and a negative pressure exhaust device in sequence through an air pipe.

5. The sludge resource recovery and granulation device according to claim 2 is characterized in that the driving component includes a driving motor, and pulleys are provided on the motor shaft of the driving motor and the outer end of the hollow drum, and a transmission belt is provided between the two pulleys.

6. The sludge resource recovery granulation device according to claim 1 is characterized in that the top outer cylindrical surface of the feeding cylinder is fixedly connected to the frame through a wing plate, and a receiving hopper connected to the discharge part is provided on one side of the upper end of the feeding cylinder.

7. The sludge resource recovery and granulation device according to claim 1 is characterized in that the guide protrusions, the extrusion guide wheels and the cutters are uniformly arranged in a plurality in the circumferential direction.

8. The sludge resource recovery and granulation device according to claim 1 is characterized in that the frame is composed of multiple support columns and a top plate, the mixing and conveying unit is arranged on the upper surface of the top plate, the extrusion granulation unit is fixedly arranged at the lower end of the top plate, and a control box is arranged on the support column.