Biomass waste fermentation device for agriculture and forestry

Abstract

The invention belongs to the technical field of agriculture and forestry biomass waste fermentation, and particularly relates to an agriculture and forestry biomass waste fermentation device which comprises a storage assembly, a moving assembly is slidably connected to the upper portion of the storage assembly, a driving assembly is arranged in the moving assembly, and a plurality of stirring assemblies are evenly arranged on the outer surface of the driving assembly; the storage assembly comprises a wall body; the moving assembly comprises a frame body, a linkage shaft is rotationally connected to the upper portion of the frame body, and a plurality of moving wheels are evenly arranged on the two sides of the lower portion of the frame body; the driving assembly comprises a middle shaft pipe, and a flowing hole is formed in the middle shaft pipe. The stirring assembly comprises a center rod, and a plurality of stirring shells are slidably connected to the outer surface of the center rod; the fermentation device is high in fermentation efficiency, good in fermentation effect, easy to operate, safe, stable, high in adaptability, high in stability, capable of saving energy, reducing emission and environmentally friendly, and the actual sustainable fermentation requirement for agriculture and forestry biomass waste is met.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural and forestry biomass waste fermentation, in particular to an agricultural and forestry biomass waste fermentation device. Background Art

[0002] The agricultural and forestry biomass waste fermentation device is a kind of equipment specially used for processing agricultural and forestry biomass waste, which converts the waste into valuable resources through the fermentation process. Its specific working process is: collecting and pre-treating agricultural and forestry biomass waste, such as crushing and mixing, so as to better ferment; putting the pre-treated waste into the fermentation tank, through the stirring and turning of the turning machine, and the humidity adjustment of the water circulation system, a suitable environment is provided for the growth and reproduction of microorganisms. Under the action of microorganisms, the waste is gradually converted into organic fertilizer; when the fermentation process is completed, the organic fertilizer is discharged through the fertilizer outlet for subsequent collection and utilization.

[0003] Chinese invention patent CN105541427A provides a device for fermenting straw and its application, the device includes a straw stacking area, three sides of the straw stacking area are provided with low walls, one side is a drainage ditch, the ground of the straw stacking area is inclined towards the drainage ditch, one end of the straw stacking area is provided with a waste liquid storage tank, and the end of the drainage ditch is located in the waste liquid storage tank; the waste fermentation device has low fermentation efficiency and poor fermentation effect.

[0004] Chinese invention patent CN115947622A discloses an organic waste fermentation treatment station, including a fermentation liquid concentration tank arranged underground, a fermentation treatment room arranged on the surface and an organic waste treatment area, wherein the fermentation treatment room is provided with at least two fermentation chambers and at least one aging chamber, and the upper ends of the fermentation chambers and the aging chambers are provided with light-transmitting grooves, and the light-transmitting grooves are covered with glass; the waste fermentation device is difficult to operate and cannot be mass-produced.

[0005] The above-mentioned fermentation devices are unable to apply different turning forces to wastes with different fermentation degrees when actually turning and fermenting the wastes, which can easily cause uneven fermentation of the wastes and ultimately affect the subsequent fermentation effect.

[0006] At the same time, since the fermentation water will continue to flow downward along the inside of the waste under the action of its own gravity, it is easy to cause different fermentation water contents inside the waste, which will correspondingly affect the fermentation degree of the waste.

[0007] And when the turning machine continues to rotate and separates from the waste, the turning machine will drive the waste to be thrown upward, thereby causing the waste to fall randomly and reducing the compactness and flatness of the waste.

[0008] When used for a long time, some waste is likely to remain on the outer surface of the waste turner. If it is not cleaned in time, it will affect the subsequent turning of the waste. After the fermentation of the waste inside the fermentation tank is completed, a large amount of waste is likely to remain on the inner wall of the fermentation tank. It is difficult to clean it only by manual flushing, and the cleaning efficiency is low. At the same time, it will also affect the subsequent fermentation of the waste. Summary of the invention

[0009] In view of the above problems such as different turning forces of agricultural and forestry biomass waste, different fermentation water contents of spraying, rotation of the turning machine and driving the waste to be thrown up, and cleaning of the turning machine and fermentation tank, the present invention provides an agricultural and forestry biomass waste fermentation device.

[0010] To achieve the above object, the present invention provides the following technical solution: an agricultural and forestry biomass waste fermentation device, comprising a storage component, a moving component is slidably connected above the storage component, a driving component is arranged inside the moving component, and a plurality of stirring components are evenly arranged on the outer surface of the driving component;

[0011] The storage assembly includes a wall;

[0012] The moving assembly comprises a frame, the upper part of the frame is rotatably connected with a linkage shaft, and the lower part of the frame is evenly provided with a plurality of moving wheels on both sides;

[0013] The driving assembly comprises a central axis tube, and a flow hole is opened inside the central axis tube;

[0014] The stirring assembly includes a central rod, a plurality of stirring shells are slidably connected to the outer surface of the central rod, a plurality of pressure sensors are provided at the ends of the stirring shells, a plurality of wedge-shaped grooves are evenly provided on the side walls of the central rod, a clamping plate is wedge-shaped and slidably connected to one side of the wedge-shaped groove, a sliding tube is provided at the other end of the clamping plate, a connecting hole is provided at the central axis of the central rod, and the connecting hole and the wedge-shaped groove are connected through a plurality of adapter holes.

[0015] The fermentation device obtains the hardness of the waste inside the fermentation tank according to the pressure value detected by the pressure sensor, thereby adjusting the thrust of the stirring shell on the waste, and correspondingly adjusting the spraying amount of the fermentation water, so as to ensure the uniform turning and fermentation process of the waste; and when the stirring shell is continuously rotated and separated from the waste, the stirring shell moves in the opposite direction and prevents the waste from being scattered and thrown up; after the waste is continuously turned and fermented and the fermentation is completed, the center rod and the outer surface of the stirring shell and the inner wall of the fermentation chamber can be sprayed and flushed, thereby further improving the cleanliness of the fermentation device.

[0016] Furthermore, a shelter is provided above the wall, a fermentation chamber is opened above the wall, agricultural and forestry biomass waste is arranged inside the fermentation chamber, inner walls on both sides of the end of the fermentation chamber are rotatably connected with closed doors through hinged seats, and two groups of movable grooves are symmetrically provided on the top of the wall, and the inner walls of the movable grooves match the outer surfaces of the movable wheels.

[0017] Furthermore, a water reservoir is provided on one side of the wall, a water storage cavity is opened above the water reservoir, fermentation water is provided inside the water storage cavity, a liquid pumping pipe is connected to one side of the central axis tube, a pump body is provided on the outer surface of the liquid pumping pipe, the bottom of the pump body is fixedly connected to the upper side of one side of the frame, and the other end of the liquid pumping pipe is connected to the water storage cavity.

[0018] Furthermore, a controller is provided on one side of the frame, a plurality of reinforcing ribs are evenly provided inside the frame, a mobile motor is provided on the top side of the frame, a coupling is provided at the output end of the mobile motor, a driving tooth is provided at the output end of the coupling, a driven tooth is provided on the outer surface of the linkage shaft, and the outer surfaces of the driving tooth and the driven tooth are transmission-connected with an external tooth chain.

[0019] Furthermore, the outer surfaces of the linkage shafts are rotatably connected to the top of the frame through multiple bearing seats, the outer surfaces on both sides of the linkage shafts are symmetrically provided with matching teeth, the central axis of the moving wheel is fixedly connected with a rotating shaft, the outer surfaces of the rotating shafts are rotatably connected to the inner wall of the frame through the bearing seats, the outer surfaces of the two rotating shafts close to one side of the linkage shaft are provided with docking teeth, and the outer surfaces of the matching teeth and the docking teeth are transmission-connected with an internal tooth chain.

[0020] Furthermore, a driving motor is provided on the other side of the top of the frame, a driving wheel is provided at the output end of the driving motor, the outer surface of the driving wheel is transmission-connected with a belt, the top of the frame is rotatably connected with a through shaft through a bearing seat, a follower wheel is provided at one end of the outer surface of the through shaft, and the outer surfaces of the driving wheel and the follower wheel are transmission-connected with a belt.

[0021] Furthermore, the other end of the through shaft is provided with a mounting tooth, the outer surface of the middle axis tube is rotatably connected to the inner wall of the frame through a bearing seat, the outer surface of the middle axis tube is provided with a fixing tooth, and the outer surfaces of the mounting tooth and the fixing tooth are transmission-connected with a transmission chain.

[0022] Furthermore, the end of the center rod is fixedly connected to the outer surface of the central axis tube, the end of the connecting hole passes through the central axis tube and is connected to the flow hole, multiple center rods are staggered and distributed, the end of the stirring shell is a triangular structure, the side wall of the wedge-shaped groove is provided with a side groove, the inner wall of the side groove is slidably connected to the outer surface of the sliding tube, the inner wall of the side groove is provided with a limiting groove, and the inner wall of the limiting groove is limitedly slidably connected to the outer surface of the clamping plate.

[0023] Furthermore, a liquid inlet hole is opened inside the clamping plate, and the output end of the liquid inlet hole is connected with the inside of the sliding tube. A plurality of positioning holes are evenly arranged inside the stirring shell. A protective tube is arranged on the outer surface of the positioning hole and on the outer wall of the stirring shell away from the center rod. The outer surface of the sliding tube is sealingly and slidingly connected with the inner wall of the positioning hole and the protective tube, and a plurality of liquid drainage holes are evenly arranged on the outer surface of the sliding tube.

[0024] Furthermore, the inner wall of the center rod is evenly provided with a plurality of grooves, an electric push rod is provided inside the groove, the output end on the other side of the electric push rod is fixedly connected to the inner wall of the stirring shell, the pressure sensor is used to detect the pressure value exerted on the end of the stirring shell, and elastic connecting sheets are provided between adjacent stirring shells on the same side, and two scrapers are symmetrically provided on the end and outer surface of the center rod, and the side walls of the scrapers are sealed and slidably connected to the two side walls of the stirring shell at the end.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention sets a storage component, a moving component, a driving component and a stirring component to cooperate with each other. The fermentation device has high fermentation efficiency and good fermentation effect, meets the actual demand for sustainable fermentation of agricultural and forestry biomass waste, is simple to operate, safe and stable, has strong adaptability, high stability, energy saving and emission reduction, and is green and environmentally friendly.

[0027] 2. The present invention sets the coordination between the central rod and the stirring shell and other components. When the waste is turned over, the distance between the stirring shell and the central rod is adaptively adjusted according to the hardness of the waste, and the impact and crushing effect of the stirring shell on the waste is correspondingly adjusted to further ensure the fermentation quality.

[0028] 3. The present invention sets the cooperation between the sliding tube and the wedge-shaped groove and other components. As the stirring shell moves, the distance between the sliding tube and the connecting hole is adjusted accordingly, and then the blockage amount of the drainage hole is adjusted to ensure that the fermentation water discharged from the drainage hole can thoroughly and effectively spray the waste, thereby effectively improving the fermentation efficiency.

[0029] 4. The present invention arranges the electric push rod and the pressure sensor and other components to cooperate with each other. When the stirring shell is separated from the turning of the waste, the stirring shell moves quickly toward the center rod end, thereby not only reducing the throwing effect of the stirring shell on the waste, but also collides with the stirring shell on the other side, thereby achieving a vibration self-cleaning effect on the outer surface of the stirring shell.

[0030] 5. The present invention cooperates with components such as scrapers and drainage holes. After the stirring of the waste is completed, the fermentation water discharged from the drainage holes can further spray and clean the center rod and the outer surface of the stirring shell, and further scrape and clean the inner wall of the fermentation chamber, thereby improving the cleaning effect and avoiding contamination of subsequent waste fermentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure from another viewing angle of the present invention;

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the mobile component of the present invention;

[0034] Figure 4 It is a three-dimensional structural schematic diagram of the mobile assembly of the present invention from another viewing angle;

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the driving assembly and the stirring assembly of the present invention;

[0036] Figure 6 This is a schematic diagram of the three-dimensional structure of the internal structure of the driving assembly and the stirring assembly of the present invention;

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of the stirring assembly of the present invention;

[0038] Figure 8 This is a schematic diagram of the internal three-dimensional structure of the stirring assembly of the present invention;

[0039] Fig. 9 It is a schematic diagram of the internal three-dimensional structure of the stirring assembly of the present invention as viewed from above;

[0040] Fig.10 for Fig. 9 The enlarged schematic diagram at A in the middle;

[0041] Fig.11 It is a schematic diagram of a partially exploded three-dimensional structure of the stirring assembly of the present invention.

[0042] In the figure: 1. storage component; 101. wall; 102. fermentation chamber; 103. closing door; 104. water reservoir; 105. water storage chamber; 106. moving slot; 2. moving component; 201. frame; 202. reinforcing rib; 203. moving motor; 204. coupling; 205. driving gear; 206. external gear chain; 207. driven gear; 208. linkage shaft; 209. matching gear; 210. internal gear chain; 211. docking gear; 212. rotating shaft; 213. moving wheel; 3. driving component; 301. central axis tube; 302. flow hole; 303. driving motor; 304. driving wheel; 30 5. Belt; 306. Follower wheel; 307. Through shaft; 308. Mounting tooth; 309. Transmission chain; 310. Fixed tooth; 311. Liquid extraction tube; 312. Pump body; 4. Stirring assembly; 401. Center rod; 402. Stirring shell; 403. Connecting hole; 404. Adapter hole; 405. Wedge groove; 406. Side groove; 407. Limiting groove; 408. Card; 409. Liquid inlet hole; 410. Positioning hole; 411. Sliding tube; 412. Protective tube; 413. Liquid discharge hole; 414. Scraper; 415. Groove; 416. Electric push rod; 417. Pressure sensor; 418. Elastic connecting piece. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Reference Figures 1 to 11 A fermentation device for agricultural and forestry biomass waste includes a storage component 1. The storage component 1 is used to store agricultural and forestry biomass waste. A moving component 2 is slidably connected above the storage component 1. A driving component 3 is arranged inside the moving component 2. A plurality of stirring components 4 are evenly arranged on the outer surface of the driving component 3. The moving component 2 drives the driving component 3 and the stirring component 4 to move above the storage component 1. The driving component 3 drives the stirring component 4 to rotate. The stirring component 4 sprays and turns the waste inside the storage component 1, thereby realizing the fermentation process of the waste.

[0045] The storage assembly 1 includes a wall 101, which can be made into a suitable size as needed. A fermentation chamber 102 is opened on the top of the wall 101, and agricultural and forestry biomass waste is arranged inside the fermentation chamber 102. The inner walls on both sides of the end of the fermentation chamber 102 are rotatably connected with a closing door 103 through a hinged seat, and the closing door 103 opens and closes the end of the fermentation chamber 102. A shielding shed is provided on the top of the wall 101, and the shielding shed shields the waste inside the fermentation chamber 102 to prevent the waste from being contaminated by the outside sun or rain. At the same time, a plurality of impurity removal holes are provided below the inner wall of the fermentation chamber 102 through a flow valve, and the impurity removal holes can directly discharge the fermentation water added into the fermentation chamber 102, thereby ensuring the internal humidity of the waste and improving the fermentation effect. This part is all existing technology and will not be elaborated here.

[0046] The moving component 2 includes a frame 201, and a linkage shaft 208 is rotatably connected to the top of the frame 201. The outer surface of the linkage shaft 208 is rotatably connected to the top of the frame 201 through multiple bearing seats. Multiple moving wheels 213 are evenly arranged on both sides of the bottom of the frame 201. The rotation of the linkage shaft 208 drives the moving wheels 213 to rotate and realize the movement of the frame 201. At the same time, two groups of moving grooves 106 are symmetrically arranged on the top of the wall 101. The inner wall of the moving groove 106 matches the outer surface of the moving wheel 213. The moving wheel 213 moves inside the moving groove 106 and realizes the turning and fermentation of the waste inside the fermentation chamber 102.

[0047] A controller is provided on one side of the frame 201, and the controller electrically controls each electrical component. A plurality of reinforcing ribs 202 are evenly provided inside the frame 201, and the setting of the reinforcing ribs 202 improves the stability of the frame 201. A mobile motor 203 is provided on one side of the top of the frame 201, and a coupling 204 is provided at the output end of the mobile motor 203, and a driving tooth 205 is provided at the output end of the coupling 204. The mobile motor 203 is started and drives the driving tooth 205 to rotate through the coupling 204. A driven tooth 207 is provided on the outer surface of the linkage shaft 208. The outer surfaces of the driving tooth 205 and the driven tooth 207 are transmission-connected with an external tooth chain 206, so that the rotation of the driving tooth 205 drives the external tooth chain 206 to rotate, and the external tooth chain 206 drives the driven tooth 207 to rotate.

[0048] Matching teeth 209 are symmetrically provided on the outer surfaces of both sides of the linkage shaft 208, and a rotating shaft 212 is fixedly connected to the central axis of the moving wheel 213. The outer surfaces of the rotating shaft 212 are rotatably connected to the inner wall of the frame 201 through a bearing seat, and the outer surfaces of the two rotating shafts 212 close to the linkage shaft 208 are provided with docking teeth 211. The outer surfaces of the matching teeth 209 and the docking teeth 211 are transmission-connected with an inner tooth chain 210. The linkage shaft 208 rotates and drives the matching teeth 209 to rotate. The matching teeth 209 rotate and drive the inner tooth chain 210 to rotate. The inner tooth chain 210 drives the docking teeth 211 at the other end to rotate. The docking teeth 211 drive the rotating shaft 212 to rotate. The rotating shaft 212 drives the two moving wheels 213 to rotate, thereby realizing that the moving wheel 213 drives the frame 201 to move back and forth inside the moving groove 106 and perform the turning and fermentation process.

[0049] The driving assembly 3 includes a central axis tube 301 , and a flow hole 302 is opened inside the central axis tube 301 . The central axis tube 301 rotates continuously and drives the multiple stirring assemblies 4 to rotate and turn over and ferment the waste inside the fermentation chamber 102 . Fermentation water flows inside the flow hole 302 .

[0050] A driving motor 303 is provided on the other side of the top of the frame 201, and a driving wheel 304 is provided at the output end of the driving motor 303. The driving motor 303 is started and drives the driving wheel 304 to rotate. The top of the frame 201 is rotatably connected to a through shaft 307 through a bearing seat. A follower wheel 306 is provided at one end of the outer surface of the through shaft 307. The outer surfaces of the driving wheel 304 and the follower wheel 306 are connected with a belt 305 for transmission. The driving wheel 304 drives the belt 305 to rotate, and the other side of the belt 305 drives the follower wheel 306 to rotate. The follower wheel 306 drives the through shaft 307 to rotate. The other end of the through shaft 307 is provided with a mounting tooth 308. The through shaft 307 rotates correspondingly. The mounting teeth 308 are driven to rotate, and the outer surface of the central axis tube 301 is rotatably connected to the inner wall of the frame 201 through the bearing seat. The central axis tube 301 can continuously rotate inside the frame 201 and cooperate with the movement of the frame 201 itself to improve the turning fermentation efficiency. The outer surface of the central axis tube 301 is provided with fixed teeth 310, and the outer surfaces of the mounting teeth 308 and the fixed teeth 310 are connected with a transmission chain 309. The rotation of the mounting teeth 308 drives the transmission chain 309 to rotate, and the other side of the transmission chain 309 drives the fixed teeth 310 to rotate. The fixed teeth 310 drives the central axis tube 301 to rotate, and the central axis tube 301 drives multiple stirring components 4 to rotate and perform the turning fermentation process.

[0051] A water reservoir 104 is provided on one side of the wall 101, and a water storage chamber 105 is provided above the water reservoir 104. Fermentation water is provided inside the water storage chamber 105. A liquid extraction pipe 311 is connected to one side of the central axis tube 301. A pump body 312 is provided on the outer surface of the liquid extraction pipe 311. The pump body 312 is started and applies suction force to the liquid extraction pipe 311. The bottom of the pump body 312 is fixedly connected to the upper side of one side of the frame 201. The other end of the liquid extraction pipe 311 is connected to the water storage chamber 105. Under the action of the suction force, the liquid extraction pipe 311 transfers the fermentation water inside the water storage chamber 105 to the inside of the flow hole 302, thereby improving the subsequent spraying effect on the waste inside the fermentation chamber 102.

[0052] The stirring assembly 4 includes a central rod 401, the end of which is fixedly connected to the outer surface of the central axis tube 301. The central axis tube 301 rotates and drives multiple central rods 401 to rotate synchronously. The central rod 401 turns over and ferments the waste inside the fermentation chamber 102. Multiple stirring shells 402 are slidably connected to the outer surface of the central rod 401. The ends of the stirring shells 402 are each provided with multiple pressure sensors 417. The pressure sensors 417 are used to detect the pressure value applied to the ends of the stirring shells 402. The stirring shells 402 can move along the outer surface of the central rod 401. At the same time, the fermentation degree of the waste inside the fermentation chamber 102 is obtained with the help of the pressure value change detected by the pressure sensor 417, and the turning and stirring effect of the waste inside the fermentation chamber 102 is correspondingly improved. At the same time, the spraying amount of the fermentation water can be adjusted accordingly, thereby improving the fermentation efficiency.

[0053] A connecting hole 403 is provided at the central axis of the central rod 401, and the end of the connecting hole 403 passes through the central axis tube 301 and is connected with the flow hole 302, so that the fermentation water inside the flow hole 302 enters the connecting hole 403 for circulation. Multiple central rods 401 are staggered, and the staggered distribution of the central rods 401 further improves the stirring shell 402 on the fermentation chamber 102 The fermentation effect of the waste. The end of the stirring shell 402 is a triangular structure. The setting of the triangular structure further improves the impact crushing force of the stirring shell 402 on the waste inside the fermentation chamber 102.

[0054] The side wall of the center rod 401 is evenly provided with a plurality of wedge-shaped grooves 405, and the connecting hole 403 is connected to the wedge-shaped groove 405 through a plurality of transfer holes 404. The wedge-shaped groove 405 is a wedge-shaped structure, and a card plate 408 is wedge-shapedly slidably connected to one side of the wedge-shaped groove 405, and the card plate 408 moves at the side wall end of the wedge-shaped groove 405. A sliding tube 411 is provided at the other end of the card plate 408, and when the card plate 408 moves, the sliding tube 411 is synchronously driven to move. Specifically, a side groove 406 is provided on the side wall of the wedge-shaped groove 405, and the inner wall of the side groove 406 is slidably connected to the outer surface of the sliding tube 411. The side groove 406 limits the movement of the sliding tube 411, and at the same time ensures the flow of fermentation water inside the wedge-shaped groove 405. The inner wall of the side groove 406 is opened A limiting groove 407 is provided, and the inner wall of the limiting groove 407 is limitedly slidably connected to the outer surface of the card plate 408. The height value of the limiting groove 407 is greater than the width value of the side groove 406. Therefore, the card plate 408 can only move within the limiting groove 407. A liquid inlet hole 409 is opened inside the card plate 408. The output end of the liquid inlet hole 409 is connected to the inside of the sliding tube 411. The fermentation water inside the connecting hole 403 fills the inside of the wedge-shaped groove 405 along the transfer hole 404, and the fermentation water inside the wedge-shaped groove 405 continues to enter the liquid inlet hole 409 along the side groove 406, and further enters the inside of the sliding tube 411 along the liquid inlet hole 409 for circulation and spraying, thereby improving the spraying uniformity and controllability of the waste inside the fermentation chamber 102.

[0055] A plurality of positioning holes 410 are evenly arranged inside the stirring shell 402, and the positioning holes 410 limit the position of the sliding tube 411. A plurality of protective tubes 412 are arranged on the outer surface of the positioning holes 410 and on the outer wall of the stirring shell 402 on the side away from the central rod 401. The protective tube 412 not only improves the protection of the sliding tube 411, but also cooperates with the sliding of the stirring shell 402 along the central rod 401 to improve the turning and fermentation effect of the waste inside the fermentation chamber 102. The outer surface of the sliding tube 411 is sealed and slidably connected with the inner walls of the positioning holes 410 and the protective tube 412. A plurality of drainage holes 413 are evenly arranged on the outer surface of the sliding tube 411, and the drainage holes 413 are blocked by the positioning holes 410 and the protective tube 412. When the sliding tube 411 moves a greater distance to the side away from the connecting hole 403, the more the drainage holes 413 extend along the positioning holes 410 and the protective tube 412, and the fermented water inside the sliding tube 411 is discharged to the waste inside the fermentation chamber 102 along the drainage holes 413.

[0056] The inner wall of the center rod 401 is evenly provided with a plurality of grooves 415, and an electric push rod 416 is arranged inside the groove 415. The output end of the other side of the electric push rod 416 is fixedly connected to the inner wall of the stirring shell 402. When the pressure value detected by the pressure sensor 417 increases, the controller controls the electric push rod 416 to start and the output end to extend. The output end of the electric push rod 416 drives the stirring shell 402 to move away from the end of the center rod 401. An elastic connecting piece 418 is arranged between adjacent stirring shells 402 on the same side. The setting of the elastic connecting piece 418 ensures There is no gap between adjacent stirring shells 402, which prevents waste inside the fermentation chamber 102 from falling into the gap between the stirring shells 402 and affecting the turning effect. Two scrapers 414 are symmetrically provided on the end and outer surface of the central rod 401. The side walls of the scraper 414 are sealed and slidably connected to the side walls of the two stirring shells 402 at the end. The scraper 414 can not only scrape and clean the bottom of the fermentation chamber 102, but also limit and block the stirring shell 402 at the end to prevent the fermented water inside the stirring shell 402 at the end from flowing out.

[0057] When the waste in the fermentation chamber 102 is actually turned over for fermentation, the fermentation degrees of the waste at different positions in the fermentation chamber 102 are different, but the prior art lacks the method of applying different turning forces to the waste at different fermentation degrees, which is easy to affect the subsequent fermentation effect; at the same time, because the fermentation water will continue to flow downward along the inside of the waste under the action of its own gravity, it is easy to cause different fermentation water contents in the waste, which correspondingly affects the fermentation degree of the waste; and when the central rod 401 drives the stirring shell 402 to rotate continuously and separate from the waste in the fermentation chamber 102, the central rod 401 and The stirring shell 402 will drive the waste to be thrown upward, causing the waste to fall randomly and reducing the compactness and flatness of the waste; and when used for a long time, some waste is likely to remain on the outer surface of the center rod 401 and the stirring shell 402. If they are not cleaned in time, it will affect the subsequent turning of the waste, and after the fermentation of the waste in the fermentation chamber 102 is completed, it is necessary to unload it. After the unloading is completed, a large amount of waste is likely to remain on the inner wall of the fermentation chamber 102. It is difficult to clean it only by manual flushing, and the cleaning efficiency is low. At the same time, it will also affect the fermentation of the subsequent waste.

[0058] In order to solve the above problems, when the agricultural and forestry biomass waste fermentation device is actually used, the closed door 103 is first opened, and the agricultural and forestry biomass waste is piled up inside the fermentation chamber 102, while ensuring that the waste is piled up as flat as possible, and a proper amount of fermentation water is poured into the water storage chamber 105 to ensure that the subsequent spraying work is carried out stably. Then, the closed door 103 is closed, and the shielding shed above the fermentation chamber 102 shields the waste inside to avoid pollution caused by sunlight or rain during the fermentation process.

[0059] After being ready, the frame 201 is located near one end of the closed door 103, and the controller controls the moving motor 203 to start and rotate forward. The moving motor 203 drives the active gear 205 to rotate forward through the coupling 204, and the active gear 205 drives the driven gear 207 to rotate forward by engaging with the outer tooth chain 206. The driven gear 207 drives the linkage shaft 208 to rotate forward, and the linkage shaft 208 drives the matching gear 209 to rotate forward. The matching gear 209 drives the inner tooth chain 210 to rotate forward, and the inner tooth chain 210 drives the docking gear 211 to rotate forward. The docking gear 211 drives the rotating shaft 212 to rotate forward, and the rotating shaft 212 drives the moving wheel 213 to rotate forward. The moving wheel 213 rotates forward inside the moving groove 106 and moves toward the end away from the closed door 103, thereby achieving the turning and fermentation effect of the waste at different positions inside the fermentation chamber 102.

[0060] At the same time, the controller controls the driving motor 303 to start forward rotation, the driving motor 303 drives the driving wheel 304 to rotate forward, the driving wheel 304 drives the follower wheel 306 to rotate forward through the belt 305, the follower wheel 306 drives the through shaft 307 to rotate forward, the through shaft 307 drives the installation tooth 308 to rotate forward, the installation tooth 308 drives the fixed tooth 310 to rotate forward through the transmission chain 309, the fixed tooth 310 drives the central axis tube 301 to rotate forward, the central axis tube 301 drives multiple center rods 401 to rotate forward, the center rod 401 drives multiple stirring shells 402 to rotate forward, the stirring shell 402 turns over the waste inside the fermentation chamber 102, thereby cooperating with the movement of the frame 201 to achieve the turning and fermentation of the waste inside the fermentation chamber 102, thereby improving the fermentation efficiency and ensuring the fermentation effect.

[0061] Similarly, when the moving wheel 213 drives the frame 201 to the end away from the closed door 103, the controller controls the moving motor 203 to reverse, and the moving wheel 213 is reversed according to the above process, and the moving wheel 213 drives the frame 201 to move toward the end close to the closed door 103, and the drive motor 303 is started and reversed. Similarly, the central axis tube 301 is reversed according to the above process, and the central axis tube 301 drives multiple center rods 401 to reverse, and then while the frame 201 is reciprocating above the wall 101, the central axis tube 301 drives multiple center rods 401 to reciprocate and ferment the waste inside the fermentation chamber 102.

[0062] And when the frame 201 drives the central axis tube 301 to move back and forth and rotate, the controller controls the pump body 312 to start and apply suction force. The pump body 312 uses the liquid suction tube 311 to discharge the fermentation water inside the water storage chamber 105 to the flow hole 302, and the fermentation water inside the flow hole 302 enters the multiple connecting holes 403, and then fills the multiple wedge-shaped grooves 405 through the adapter hole 404. The fermentation water inside the wedge-shaped groove 405 enters the sliding tube 411 along the side groove 406 and the liquid inlet hole 409, and is discharged along the multiple drainage holes 413 inside the sliding tube 411, thereby realizing the spraying of the waste inside the fermentation chamber 102, thereby adjusting the humidity of the waste, ensuring that the waste is in a suitable humidity and temperature environment, and further improving the fermentation effect.

[0063] At the same time, when the central rod 401 drives the multiple stirring shells 402 to rotate and flip and collide with the waste inside the fermentation chamber 102, the multiple pressure sensors 417 all detect the pressure value. If the humidity of the waste itself decreases, the hardness of the waste increases, the pressure value received by the stirring shell 402 when it is squeezed and collided with the waste increases, and the pressure value detected by the pressure sensor 417 increases. At this time, the controller controls the electric push rod 416 to start and the output end extends. The output end of the electric push rod 416 drives the stirring shell 402 to move away from the end of the central rod 401. The movement of the stirring shell 402 and the rotation of the central rod 401 further increase the squeezing and collision force on the waste, thereby improving the effect of fully crushing and flipping the waste at the position where the humidity is reduced.

[0064] When the stirring shell 402 moves away from the end of the center rod 401, the plurality of sliding tubes 411 are synchronously driven to move through the limiting effect of the positioning hole 410 and the protective tube 412. The sliding tube 411 drives the card plate 408 to move inside the limiting groove 407. The card plate 408 and the wedge-shaped groove 405 cooperate with each other in a wedge shape and synchronously move away from the connecting hole 403. The card plate 408 drives the sliding tube 411 to move along the positioning hole 410 and the protective tube 412 away from the connecting hole 403. The distance between the end of the sliding tube 411 and the side wall of the stirring shell 402 increases. When the stirring shell 402 drives the sliding tube 411 to rotate, the lateral impact range of the waste is increased. The sliding tube 411 cooperates with the stirring shell 402 to push the waste to both sides to jointly realize the turning and crushing of the waste, thereby ensuring the fermentation effect of the waste inside the fermentation chamber 102.

[0065] At the same time, when the sliding tube 411 moves away from the connecting hole 403, the number of blockages of the drainage holes 413 on the outer surface of the sliding tube 411 by the positioning holes 410 and the protective tube 412 is reduced, and the fermentation water inside the wedge-shaped groove 405 enters the sliding tube 411 along the side grooves 406 and the liquid inlet hole 409, and finally the amount of fermentation water discharged along the multiple drainage holes 413 increases. The fermentation water can increase the spraying amount of waste at a location with lower humidity, further reduce the humidity of the waste, and improve the spraying and fermentation effect of the waste.

[0066] And because the fermentation water has its own gravity, the fermentation water sprayed on the waste will continue to flow downward under its own weight, and the pressure value of the waste on the stirring shell 402 is detected by the pressure sensor 417, so as to indirectly obtain the humidity of the waste and adjust the distance between the stirring shell 402 and the center rod 410 accordingly. Under normal circumstances, the humidity above the waste is lower than the humidity below. Therefore, when the center rod 401 drives the stirring shell 402 to rotate and turn over the waste inside the fermentation chamber 102, the squeezing force between the stirring shell 402 and the waste keeps changing.

[0067] That is, the same stirring shell 402 first contacts with the waste above by squeezing, at which time the squeezing force between the stirring shell 402 and the waste directly reaches the maximum value from zero, and the pressure value detected by the pressure sensor 417 is the maximum value, and as the central rod 401 drives the stirring shell 402 to rotate continuously, the stirring shell 402 rotates downward continuously, the humidity of the waste increases continuously, and the squeezing force between the stirring shell 402 and the waste decreases continuously, and the pressure value detected by the pressure sensor 417 decreases continuously. When the stirring shell 402 is located directly below, the squeezing force between the stirring shell 402 and the waste reaches the minimum value, and then as the central rod 401 drives the stirring shell 402 to continue to rotate, the humidity of the waste increases continuously, and the squeezing force between the stirring shell 402 and the waste increases continuously. On the contrary, it keeps increasing, and the pressure value detected by the pressure sensor 417 keeps increasing. After that, when the stirring shell 402 separates from the waste, the squeezing force between the stirring shell 402 and the waste is reduced to zero, and the pressure value detected by the pressure sensor 417 is zero. Therefore, the pressure value detected by the pressure sensor 417 suddenly changes from zero to the maximum value, and keeps decreasing from the maximum value to the minimum value, and then keeps increasing from the minimum value to the maximum value, and finally suddenly changes from the maximum value to zero. Then, the electric push rod 416 drives the stirring shell 402 to move back and forth on the outer surface of the central rod 401, thereby realizing adaptive turning and fermentation of the waste inside the fermentation chamber 102, and can also perform reciprocating vibration cutting and crushing on the waste, thereby improving the fermentation effect and ensuring the fermentation quality.

[0068] And as the stirring shell 402 rotates with the central rod 401 and changes the distance between it and the central rod 401, the stirring shell 402 synchronously drives the sliding tube 411 to move, and the sliding tube 411 drives the clamping plate 408 to move along the wedge-shaped groove 405, and the clamping plate 408 drives the sliding tube 411 to continuously reciprocate along the positioning hole 401 and the protective tube 412, and the blockage amount of the positioning hole 401 and the protective tube 412 on the drainage hole 413 inside the sliding tube 411 continuously changes, and the fermentation water discharged from the corresponding drainage hole 413 continuously flows in pulses, thereby not only improving the spray fermentation effect of the waste inside the fermentation chamber 102, but also pulse cleaning the drainage hole 413, avoiding the drainage hole 413 from being blocked when used for a long time and reducing the spray fermentation effect.

[0069] For the multiple stirring shells 402 located in the same direction of the central rod 401, the greater the distance between the stirring shell 402 and the central axis tube 301, the greater the squeezing depth of the stirring shell 402 and the waste inside the fermentation chamber 102. Moreover, since the contact moments between the multiple stirring shells 402 and the waste are inconsistent, the movement time and distance of the multiple stirring shells 402 are different, and the multiple stirring shells 402 are unevenly distributed on one side of the central rod 401. At the same time, the two adjacent stirring shells 402 are elastically connected with the help of the elastic connecting piece 418, so as to further realize the uneven impact and turning effect of the central rod 401 and the stirring shell 402 on the waste inside the fermentation chamber 102, which has stronger adaptability and higher controllability.

[0070] When the center rod 401 drives the stirring shell 402 to rotate and separate from the waste inside the fermentation chamber 102, the stirring shell 402 no longer applies an extruding force to the waste, and the pressure value detected by the pressure sensor 417 at this position is zero, while other pressure sensors 417 still detect pressure values, so the controller electric push rod 416 is started and the output end is shortened to the minimum value. At this time, the electric push rod 416 drives the stirring shell 402 to move toward the end close to the center rod 401, and the side wall of the stirring shell 402 collides with the stirring shell 402 at the other end. With the help of the collision force, the waste attached to the outer surface of the stirring shell 402 can be vibrated and separated, effectively ensuring the cleanliness of the outer surface of the stirring shell 402, and the thrust applied by the stirring shell 402 to the waste reaches the minimum value, thereby effectively preventing the center rod 401 from driving the stirring shell 402 to rotate and driving the waste inside the fermentation chamber 102 to be thrown around, further ensuring the compactness and uniformity of the waste accumulation.

[0071] At the same time, the stirring shell 402 synchronously drives the sliding tube 411 to move with the help of the positioning hole 410 and the protective tube 412, and the sliding tube 411 drives the clamping plate 408 to move along the limiting groove 407. The clamping plate 408 cooperates with the wedge-shaped groove 405 in a wedge shape and drives the sliding tube 411 to move to the maximum distance close to the end of the connecting hole 403. The drainage holes 413 on the outer surface of the sliding tube 411 are blocked by the positioning hole 410 and the protective tube 412. At this time, only a minimum part of the drainage holes 413 is located outside the protective tube 412, and the drainage holes 413 inside the wedge-shaped groove 405 are blocked. The fermentation water is discharged along the side groove 406, the liquid inlet hole 409 and the sliding tube 411 along the drainage hole 413 to the minimum value. At this time, the fermentation water discharged from the drainage hole 413 can not only flush and clean the outer surface of the central rod 401 and the stirring shell 402, but also the fermentation water flowing downward along the central rod 401 and the stirring shell 402 can evenly spray the top of the waste to ensure that the humidity above the waste meets the requirements. In addition, since the amount of fermentation water is the minimum value, it is avoided that too much fermentation water is sprayed on the waste to affect the subsequent fermentation quality.

[0072] According to the above process, the waste inside the fermentation chamber 102 is continuously sprayed and turned over, thereby realizing the fermentation process of the waste. When the fermentation is completed, the controller controls each component to stop working, and at the same time opens the closing door 103 to push out the waste that has been fermented inside the fermentation chamber 102. Then the controller controls the above components to work again. At this time, the pressure values ​​detected by the multiple pressure sensors 417 are all minimum values, which means that there is no waste inside the fermentation chamber 102 and it needs to be cleaned. Then the controller controls the multiple electric push rods 416 to start and the output ends extend to the maximum value. The electric push rod 416 drives the stirring shell 402 to move away from the end of the center rod 401 to the maximum value, and the stirring shell 402 drives the sliding tube 411 to move to the maximum through the positioning hole 410 and the sliding tube 411. The sliding tube 411 drives the card plate 408 to move to the maximum value inside the limiting groove 407, the card plate 408 cooperates with the wedge-shaped groove 405 in a wedge shape and drives the sliding tube 411 to move to the maximum value away from the connecting hole 403, the blocking amount of the positioning hole 410 and the protective tube 412 on the drainage hole 413 reaches the minimum value, and the fermentation water inside the wedge-shaped groove 405 is discharged along the side groove 406, the liquid inlet hole 409 and the sliding tube 411 along the drainage hole 413. The fermentation water is fully sprayed, flushed and cleaned on the inner wall of the fermentation chamber 102, and cooperates with the scraper 414 at the end of the center rod 410 to further scrape and clean the waste attached to the inner wall of the fermentation chamber 102, and the cleaned waste is directly discharged along the impurity removal hole, which effectively avoids affecting the fermentation of subsequent waste.

[0073] After the scraping and cleaning of the inside of the fermentation chamber 102 is completed, the waste is pushed back into the fermentation chamber 102, and the above process is repeated to ferment the subsequent waste.

[0074] The fermentation device has high fermentation efficiency and good fermentation effect, meets the actual demand for sustainable fermentation of agricultural and forestry biomass waste, is simple to operate, safe and stable, has strong adaptability, high stability, energy saving and emission reduction, and is green and environmentally friendly; at the same time, when the waste is turned over, the distance between the stirring shell 402 and the central rod 401 is adaptively adjusted according to the hardness of the waste, and the impact crushing effect of the stirring shell 402 on the waste is correspondingly adjusted to further ensure the fermentation quality; and as the stirring shell 402 moves, the distance between the sliding tube 411 and the connecting hole 403 is correspondingly adjusted, thereby adjusting the blockage amount of the drainage hole 413 to ensure that the fermentation water discharged from the drainage hole 413 can thoroughly ferment the waste. Effective spraying effectively improves the fermentation efficiency; and when the stirring shell 402 is separated from the turning of the waste, the stirring shell 402 moves quickly toward the end close to the center rod 401, thereby not only reducing the throwing effect of the stirring shell 402 on the waste, but also colliding with the stirring shell 402 on the other side, achieving the vibration self-cleaning effect on the outer surface of the stirring shell 402; when the stirring of the waste is completed, the fermentation water discharged from the drainage hole 413 can further spray and clean the outer surface of the center rod 401 and the stirring shell 402, and further scrape and clean the inner wall of the fermentation chamber 102, thereby improving the cleaning effect and avoiding pollution to the subsequent fermentation of the waste.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fermentation device for agricultural and forestry biomass waste, comprising a storage component (1), characterized in that: A moving component (2) is slidably connected above the storage component (1), a driving component (3) is provided inside the moving component (2), and a plurality of stirring components (4) are evenly provided on the outer surface of the driving component (3); The storage assembly (1) comprises a wall (101); The moving assembly (2) comprises a frame (201), the upper part of the frame (201) is rotatably connected to a linkage shaft (208), and a plurality of moving wheels (213) are evenly arranged on both sides of the lower part of the frame (201); The driving assembly (3) comprises a central axis tube (301), and a flow hole (302) is provided inside the central axis tube (301); The stirring assembly (4) comprises a central rod (401), the outer surface of which is slidably connected to a plurality of stirring shells (402), the ends of which are provided with a plurality of pressure sensors (417), the side wall of the central rod (401) is evenly provided with a plurality of wedge-shaped grooves (405), one side of the wedge-shaped groove (405) is wedge-shapedly slidably connected to a clamping plate (408), the other end of which is provided with a sliding tube (411), a connecting hole (403) is provided at the central axis of the central rod (401), and the connecting hole (403) is connected to the wedge-shaped groove (405) via a plurality of adapter holes (404).

2. The agricultural and forestry biomass waste fermentation device according to claim 1, characterized in that: A shelter shed is provided above the wall (101), a fermentation chamber (102) is provided above the wall (101), agricultural and forestry biomass waste is provided inside the fermentation chamber (102), both inner walls of the ends of the fermentation chamber (102) are rotatably connected to a closing door (103) via a hinge seat, and two groups of movable grooves (106) are symmetrically provided on the top of the wall (101), and the inner walls of the movable grooves (106) match the outer surfaces of the movable wheels (213).

3. The agricultural and forestry biomass waste fermentation device according to claim 1, characterized in that: A water reservoir (104) is provided on one side of the wall (101), a water storage chamber (105) is provided above the water reservoir (104), fermentation water is provided inside the water storage chamber (105), a liquid extraction pipe (311) is communicated with one side of the central axis tube (301), a pump body (312) is provided on the outer surface of the liquid extraction pipe (311), the bottom of the pump body (312) is fixedly connected to the upper side of one side of the frame (201), and the other end of the liquid extraction pipe (311) is communicated with the water storage chamber (105).

4. The agricultural and forestry biomass waste fermentation device according to claim 1, characterized in that: A controller is provided on one side of the frame (201); a plurality of reinforcing ribs (202) are evenly provided inside the frame (201); a mobile motor (203) is provided on one side of the top of the frame (201); a coupling (204) is provided at the output end of the mobile motor (203); a driving tooth (205) is provided at the output end of the coupling (204); a driven tooth (207) is provided on the outer surface of the linkage shaft (208); and an outer tooth chain (206) is connected in transmission between the outer surfaces of the driving tooth (205) and the driven tooth (207).

5. The agricultural and forestry biomass waste fermentation device according to claim 1, characterized in that: The outer surfaces of the linkage shaft (208) are rotatably connected to the top of the frame (201) via a plurality of bearing seats, matching teeth (209) are symmetrically provided on the outer surfaces of both sides of the linkage shaft (208), a rotating shaft (212) is fixedly connected to the central axis of the moving wheel (213), the outer surfaces of the rotating shaft (212) are rotatably connected to the inner wall of the frame (201) via the bearing seats, the outer surfaces of the two rotating shafts (212) close to one side of the linkage shaft (208) are provided with docking teeth (211), and the outer surfaces of the matching teeth (209) and the docking teeth (211) are transmission-connected with an internal tooth chain (210).

6. The agricultural and forestry biomass waste fermentation device according to claim 1, characterized in that: A driving motor (303) is provided on the other side of the top of the frame body (201); a driving wheel (304) is provided at the output end of the driving motor (303); a belt (305) is connected to the outer surface of the driving wheel (304) in a transmission manner; a through shaft (307) is rotatably connected to the top of the frame body (201) via a bearing seat; a follower wheel (306) is provided at one end of the outer surface of the through shaft (307); and a belt (305) is connected to the outer surfaces of the driving wheel (304) and the follower wheel (306) in a transmission manner.

7. The agricultural and forestry biomass waste fermentation device according to claim 6, characterized in that: The other end of the through shaft (307) is provided with a mounting tooth (308), the outer surface of the middle axis tube (301) is rotatably connected to the inner wall of the frame body (201) via a bearing seat, the outer surface of the middle axis tube (301) is provided with a fixing tooth (310), and the outer surfaces of the mounting tooth (308) and the fixing tooth (310) are transmission-connected with a transmission chain (309).

8. The agricultural and forestry biomass waste fermentation device according to claim 1, characterized in that: The end of the central rod (401) is fixedly connected to the outer surface of the central axis tube (301), the end of the connecting hole (403) passes through the central axis tube (301) and is connected to the flow hole (302), a plurality of central rods (401) are staggered and distributed, the end of the stirring shell (402) is a triangular structure, the side wall of the wedge-shaped groove (405) is provided with a side groove (406), the inner wall of the side groove (406) is slidably connected to the outer surface of the sliding tube (411), the inner wall of the side groove (406) is provided with a limiting groove (407), and the inner wall of the limiting groove (407) is slidably connected to the outer surface of the clamping plate (408).

9. The agricultural and forestry biomass waste fermentation device according to claim 1, characterized in that: The clamping plate (408) is provided with a liquid inlet hole (409) inside, and the output end of the liquid inlet hole (409) is communicated with the inside of the sliding tube (411); the inside of the stirring shell (402) is evenly provided with a plurality of positioning holes (410); the outer surface of the positioning hole (410) and the outer wall of the stirring shell (402) away from the central rod (401) are provided with a protective tube (412); the outer surface of the sliding tube (411) is sealingly and slidably connected with the inner wall of the positioning hole (410) and the protective tube (412); and the outer surface of the sliding tube (411) is evenly provided with a plurality of liquid discharge holes (413).

10. The agricultural and forestry biomass waste fermentation device according to claim 1, characterized in that: The inner wall of the center rod (401) is evenly provided with a plurality of grooves (415), and an electric push rod (416) is arranged inside the groove (415). The output end on the other side of the electric push rod (416) is fixedly connected to the inner wall of the stirring shell (402). The pressure sensor (417) is used to detect the pressure value applied to the end of the stirring shell (402). An elastic connecting piece (418) is arranged between adjacent stirring shells (402) on the same side. Two scrapers (414) are symmetrically arranged on the end and outer surface of the center rod (401), and the side walls of the scrapers (414) are sealingly and slidably connected to the side walls of the two stirring shells (402) at the end.

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