Fermentation device

Abstract

The invention discloses a fermentation device, and relates to the technical field of fermentation, the fermentation device comprises a fermentation box body, the upper end of the fermentation box body is provided with an upper top cover plate used for opening, closing and sealing, and the edge of the lower end of the upper top cover plate is provided with an injector head capable of spraying clear water to the inner wall of the fermentation box body; a biogas treatment box is arranged in the middle of the outer side of the fermentation box body, and a mounting shell connected with the fermentation box body is arranged on the outer side of the biogas treatment box. The problems that after fermentation of animal manure is completed, a small amount of manure is attached to the inner wall of a fermentation barrel, if the manure is not treated, resource waste is caused, residues are left, inert substances in the residues hinder microbial activity, the follow-up fermentation efficiency is reduced, parts are blocked after static precipitation, and waste of resources is caused are solved. And meanwhile, in the fermentation process, a large amount of biogas can be generated, and fire phenomena such as explosion can be caused by improper treatment of the biogas.

Description

Technical Field

[0001] The invention relates to the technical field of fermentation, and in particular to a fermentation device. Background Art

[0002] Organic fertilizer mainly comes from plants and animals. It is obtained from the fermentation of plant decay and animal feces. It can increase and renew the organic matter in the soil, promote the reproduction of microorganisms, and thus provide comprehensive nutrition for crops. A fermentation device is needed in the process of processing animal feces.

[0003] Compared with the existing fermentation devices, there are still the following defects: after the fermentation of animal manure is completed, a small amount of manure will adhere to the inner wall of the fermentation barrel. If it is not treated, it will not only cause waste of resources, but also cause residues to remain. The inert substances in the residues will hinder the activity of microorganisms and reduce the subsequent fermentation efficiency. It will also cause blockage of parts after static sedimentation, increasing maintenance costs. At the same time, a large amount of biogas will be produced during the fermentation process. Improper treatment of the biogas will cause explosions and other fire phenomena. Summary of the invention

[0004] The purpose of the present invention is to provide a fermentation device to solve the following technical problems: after the fermentation of animal manure is completed, a small amount of manure will adhere to the inner wall of the fermentation barrel. If it is not treated, it will not only cause a waste of resources, but also cause residual deposits, so that the inert substances in the residues hinder the activity of microorganisms, reduce the subsequent fermentation efficiency, and cause blockage of parts after static sedimentation, increase maintenance costs, and at the same time, a large amount of biogas will be generated during the fermentation process. Improper treatment of the biogas will cause explosions and other fire phenomena.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A fermentation device, comprising: a fermentation box, an upper cover plate for opening and closing sealing is installed at the upper end of the fermentation box, and a spray head for spraying clean water on the inner wall of the fermentation box is arranged at the lower end edge of the upper cover plate;

[0007] A biogas treatment box is arranged in the middle of the outer side of the fermentation box for collecting and utilizing the generated biogas; a mounting shell connected to the fermentation box is arranged on the outer side of the biogas treatment box; movable plates which fit the outer surface of the fermentation box are equidistantly arranged at the inner end of the mounting shell for knocking the outer surface of the fermentation box.

[0008] As a further solution of the present invention: a fixed support pipe rack is provided at the lower end of the water storage tank and is fixedly connected to the upper top cover plate, so as to support the water storage tank as a whole and allow the liquid to flow through the flow cavity;

[0009] A first conical disk is installed in the middle of the inner side of the upper cover plate, a central support column is fixedly connected to the middle of the lower end of the first conical disk, and a second conical disk connected to the upper cover plate is arranged on the right side of the first conical disk;

[0010] The lower end of the second conical disk is connected to the third conical disk, and the lower end of the third conical disk is fixedly provided with an outer lining hollow pipe rack which is sleeve-connected with the central support column.

[0011] As a further solution of the present invention: a rubber sealing ring arranged in an annular manner is installed on the outer surface of the lower end of the upper cover plate, and is connected to the fermentation box body by a snap-fitting manner;

[0012] The lower end of the central support column is fixedly connected with a movable bottom plate, and the outer side of the movable bottom plate is provided with a first scraper that is closely connected with the inner wall of the fermentation box;

[0013] The outer end of the outer lining hollow pipe rack is equidistantly mounted with stirring rods, and the outer end of the stirring rod is fixedly mounted with a second scraper.

[0014] As a further solution of the present invention: the first cone disk and the third cone disk are connected to the second cone disk in a meshing manner, and the first cone disk and the third cone disk rotate in opposite directions;

[0015] The central support column and the outer lining hollow pipe rack are connected in a wrapped nested manner;

[0016] The outer surfaces of the first scraper and the second scraper are both arranged to fit the inner wall of the fermentation box.

[0017] As a further solution of the present invention: a layered filter is arranged on the inner side of the upper end of the biogas treatment box, a flow cavity is opened on the inner side of the biogas treatment box, the lower end of the flow cavity is connected to a gas internal combustion engine located on the lower side of the biogas treatment box, and a combined connecting bridge is arranged on the outer side of the lower end of the biogas treatment box for connecting with another monomer structure.

[0018] As a further solution of the present invention: the biogas treatment box and the layered filter are connected by bonding, and the layered filter is arranged in an inclined manner as a whole to increase the filtering area;

[0019] The biogas treatment box is connected to the upper cover plate by means of a snap fit, and is threadedly connected to the fermentation box body by means of a first adjusting bolt provided on the outer side, which is used to connect the upper cover plate to the fermentation box body;

[0020] A detachable structure is provided between the biogas processing box and the combined connecting bridge, so as to disassemble the biogas processing box as a whole for easy assembly.

[0021] As a further solution of the present invention: a driving disk is arranged inside the mounting housing, and a driven disk is arranged outside the driving disk;

[0022] The front end of the active disk is connected to a toothless disk, and a movable supporting sleeve rod is arranged on the outer side of the toothless disk;

[0023] The right end of the movable support sleeve rod is provided with a return spring, and the left end of the movable support sleeve rod is connected to the movable plate.

[0024] As a further solution of the present invention: the active disk and the driven disk are connected in a meshing manner, and the diameter of the active disk is larger than the diameter of the driven disk, so as to distinguish the rotation path;

[0025] The active disk and the driven disk are arranged alternately up and down on the inner side of the mounting shell.

[0026] As a further solution of the present invention: the toothless disk is connected to the movable support sleeve rod in a meshing manner, and the inner lower surface of the movable support sleeve rod is a smooth plane and is not connected to the toothless disk.

[0027] As a further solution of the present invention: the movable support sleeve rod forms an elastic telescopic structure in the installation shell through a return spring, and the inner end of the movable support sleeve rod passes through the inner side of the installation shell and is fixedly connected to the movable plate.

[0028] Beneficial effects of the present invention:

[0029] 1. Through the combined use of biogas treatment boxes, the generated biogas can be recycled and reused to avoid waste of resources or the risk of subsequent explosion and fire caused by excessive biogas leading to gas pressure saturation. After recycling and reuse, the utilization rate can be improved and the operation efficiency can be increased;

[0030] In addition, the outer surface of the fermentation box is equidistantly installed with mounting shells, which can vibrate and knock off the residues adhering to the inner wall of the fermentation box under the knocking action of the mounting shells, and then cooperate with the high-pressure water jet of the spray head to efficiently clean the residues adhering to the inner wall of the fermentation box, thereby preventing the inert substances in the residue from hindering the activity of microorganisms and reducing the subsequent fermentation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] Figure 1 It is a schematic diagram of the overall structure of the fermentation box body and the fixed legs connected to the present invention;

[0033] Figure 2 It is a front cross-sectional structural schematic diagram of the connection between the fermentation box body and the upper top cover plate of the present invention;

[0034] Figure 3 It is a front view structural schematic diagram of the fermentation box and the biogas treatment box connected to each other in the present invention;

[0035] Figure 4 It is a schematic diagram of the front cross-sectional structure of the fermentation box body and the installation shell of the present invention being connected;

[0036] Figure 5 It is a schematic diagram of the overall structure of the first conical disk and the second conical disk connected to each other in the present invention;

[0037] Figure 6 It is a schematic diagram of the overall structure of the stirring rod and the second scraper connected to each other in the present invention;

[0038] Figure 7 It is a schematic diagram of the overall structure of the biogas treatment box connected to the layered filter screen of the present invention;

[0039] Figure 8 It is a schematic diagram of the overall structure of the connection between the mounting housing and the movable plate of the present invention;

[0040] Fig. 9 It is a schematic diagram of the overall structure of the connection between the toothless disc and the movable support sleeve rod of the present invention;

[0041] Fig.10 It is a schematic diagram of the overall structure of the connection between the driving disk and the driven disk of the present invention;

[0042] Fig.11 It is a circuit connection schematic diagram of the present invention.

[0043] In the figure: 1, fermentation box; 2, fixed legs; 3, upper cover plate; 301, fixed support pipe rack; 302, water storage tank; 3021, booster pump; 3022, injection pipe; 3023, circulation cavity;

[0044] 3024, injection head; 303, first servo motor; 304, first cone; 305, central support column; 3051, movable bottom plate; 3052, first scraper; 306, second cone; 307, third cone; 308, outer lining empty pipe rack; 3081, stirring rod; 3082, second scraper; 309, rubber sealing ring; 3091, filter; 4, biogas treatment box; 401, layered filter; 402 , circulation cavity; 403, gas internal combustion engine; 4031, backup battery; 4032, main battery; 404, connecting ear block; 405, first adjusting bolt; 406, combined connecting bridge; 5, installation shell; 501, second adjusting bolt; 502, second servo motor; 503, active disk; 504, driven disk; 505, toothless disk; 506, movable support sleeve rod; 507, reset spring; 508, movable plate. DETAILED DESCRIPTION

[0045] 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.

[0046] See also Figure 1-11 As shown, the present invention is a fermentation device.

[0047] Embodiment 1

[0048] See also Figure 1-Figure 3 , Figure 5 and Figure 6 The present invention provides a technical solution: a fermentation box 1, an upper cover plate 3 for opening and closing sealing is installed at the upper end of the fermentation box 1, and a spray head 3024 for spraying clean water on the inner wall of the fermentation box 1 is arranged at the lower edge of the upper cover plate 3, wherein the outer cross-sectional shape of the fermentation box 1 is rectangular, and the inner cross-sectional shape is circular;

[0049] Furthermore, a fixed support pipe rack 301 is provided at the lower end of the water tank 302 and is fixedly connected to the upper cover plate 3, so as to support the water tank 302 as a whole and allow the liquid to flow through the circulation cavity 3023;

[0050] A first conical disk 304 is installed in the middle of the inner side of the upper cover plate 3, a central support column 305 is fixedly connected to the middle of the lower end of the first conical disk 304, and a second conical disk 306 connected to the upper cover plate 3 is arranged on the right side of the first conical disk 304;

[0051] The lower end of the second conical disk 306 is connected to the third conical disk 307 , and the lower end of the third conical disk 307 is fixedly provided with an outer lining hollow pipe rack 308 which is sleeve-connected with the central support column 305 .

[0052] Furthermore, a rubber sealing ring 309 is installed on the outer surface of the lower end of the upper cover plate 3, and is connected to the fermentation box body 1 by a snap-fitting manner;

[0053] The lower end of the central support column 305 is fixedly connected with a movable bottom plate 3051, and the outer side of the movable bottom plate 3051 is provided with a first scraper 3052 which is closely connected with the inner wall of the fermentation box body 1;

[0054] The outer end of the outer lining hollow pipe rack 308 is equidistantly mounted with stirring rods 3081 , and the outer end of the stirring rods 3081 is fixedly mounted with a second scraper 3082 .

[0055] Furthermore, the first cone disk 304 and the third cone disk 307 are connected to the second cone disk 306 in a meshing manner, and the first cone disk 304 and the third cone disk 307 rotate in opposite directions;

[0056] The central support column 305 and the outer lining hollow pipe frame 308 are connected in a wrapping nesting manner;

[0057] The outer surfaces of the first scraper 3052 and the second scraper 3082 are both arranged to fit the inner wall of the fermentation box 1 .

[0058] Specifically, firstly, the fermentation box 1 is placed at a designated position by means of the fixed legs 2, and then the animal feces to be fermented are poured into the fermentation box 1. At this time, the annular rubber sealing ring 309 bonded to the outer surface of the lower end of the upper cover plate 3 is connected to the fermentation box 1 for fastening and docking. After the biogas treatment box 4 is docked and engaged with the upper cover plate 3, the first adjusting bolt 405 is passed through the connecting ear block 404 and is threadedly connected to the fermentation box 1, so that the upper cover plate 3 and the fermentation box 1 can be sealed and connected, and splashing and spraying of materials can be prevented. Then, liquids such as clean water or cleaning liquid are poured into the water storage tank 302 through the injection pipe 3022 for storage.

[0059] The first cone disk 304 and the third cone disk 307 are connected to the second cone disk 306 in a meshing manner. When the first servo motor 303 is turned on to rotate the first cone disk 304, the central support column 305 can be driven to rotate synchronously, and the second cone disk 306 can be driven to rotate synchronously under the action of the meshing connection, so that the third cone disk 307 meshingly connected to the second cone disk 306 generates a rotation in the opposite direction to the first cone disk 304 in the upper cover plate 3, so that the rotation directions of the first cone disk 304 and the third cone disk 307 are displaced in opposite directions. At this time, the central support column 305 drives the movable bottom plate 3 The first scraper 3052 fixedly connected at the lower end of 051 moves in close contact with the lower side of the inner wall of the fermentation box 1, and is connected in a wrapped and nested manner on the inner side of the outer lining empty pipe rack 308 through the central support column 305, and the two are unobstructed. The outer lining empty pipe rack 308 can rotate in the upper top cover plate 3, driving the stirring rod 3081 fixedly connected at the outer side to rotate, and the stirring rod 3081 is used to drive the second scraper 3082 fixedly connected at the outer end to rotate in close contact with the inner wall of the fermentation box 1. During the fermentation and stirring process of animal feces, the residues adhering to the inner wall of the fermentation box 1 can be scraped off by the first scraper 3052 and the second scraper 3082;

[0060] Furthermore, the opposite rotation of the central support column 305 and the outer lining hollow pipe rack 308 can cause the movable bottom plate 3051, the first scraper 3052 and the stirring rod 3081, the second scraper 3082 to generate a dislocation movement. The two opposite rotations will form a complex flow pattern in the material, improve the mixing efficiency, reduce the formation of vortex, and reduce energy loss, so that the forces in the two directions are balanced with each other, reduce the equipment load, make the materials mixed evenly, prevent material deposition, and improve the reaction efficiency;

[0061] After fermentation is completed, the booster pump 3021 is turned on to pressurize the liquid and flow downward along the flow cavity 3023, and then sprayed toward the upper side of the inner wall of the fermentation box 1 through the equidistantly arranged injection heads 3024, so that a small amount of residue falls off under the high-pressure injection of the liquid, which not only achieves the effect of cleaning the inner wall again to prevent residue, but also facilitates the subsequent flushing of the inner wall of the fermentation box 1, and finally is discharged from the lower end of the fermentation box 1. The discharge port at the lower end of the fermentation box 1 is provided with a valve, which can be automatically closed and opened. The model of the booster pump 3021 is Shurf lo 4008.

[0062] Embodiment 2

[0063] See also Figure 1-Figure 3 , Figure 7 and Fig.11 The present invention provides a technical solution: a biogas treatment box 4 is arranged in the middle of the outer side of the fermentation box 1 for collecting and utilizing the generated biogas, a layered filter screen 401 is arranged on the inner side of the upper end of the biogas treatment box 4, a flow cavity 402 is opened on the inner side of the biogas treatment box 4, a gas internal combustion engine 403 located on the lower side of the biogas treatment box 4 is connected to the lower end of the flow cavity 402, and a combined connecting bridge 406 is arranged on the outer side of the lower end of the biogas treatment box 4 for communicating with another monomer structure.

[0064] Furthermore, the biogas processing box 4 and the layered filter screen 401 are connected by bonding, and the layered filter screen 401 is arranged in an inclined manner as a whole to increase the filtering area;

[0065] The biogas treatment box 4 is connected to the upper cover plate 3 by means of a snap fit, and is threadedly connected to the fermentation box 1 by means of a first adjusting bolt 405 provided on the outer side, which is used to connect the upper cover plate 3 and the fermentation box 1 to limit the position;

[0066] A detachable structure is provided between the biogas processing box 4 and the combined connecting bridge 406, so as to disassemble the biogas processing box 4 as a whole for easy assembly.

[0067] Specifically, in combination with Example 1, a large amount of biogas will be generated during the fermentation and stirring process. At this time, the biogas will be filtered along the filter screen 3091 and then flow into the biogas treatment box 4, and then pass through the inclined layered filter screen 401 layer by layer for filtering, and then flow downward along the flow cavity 402. The layered filter screen 401 is inclined and the mesh size increases from the inside to the outside, which can effectively filter the biogas and avoid the accumulation of residues in the flow cavity 402 due to splashing of animal feces during the stirring process. At this time, when the biogas enters the gas internal combustion engine 403 along the flow cavity 402, the biogas can be converted to generate electricity and supply energy to the backup battery 4031. The backup battery 4031 is connected to the main battery 4032, and the main battery 4032 supplies power to the first servo motor 303, the boost pump 3021 and the second servo motor 502 respectively. The lower end of the biogas treatment box 4 is connected to another monomer by a combined connecting bridge 406, which is convenient for the circulation and conversion of biogas energy storage and avoids the problem of excess single energy storage. A detachable structure is provided at the connection between the biogas treatment box 4 and the combined connecting bridge 406, which is convenient for disassembly of the biogas treatment box 4 as a whole, and after disassembly, the upper cover plate 3 can be separated from the sealed engagement state with the fermentation box 1. The model of the gas internal combustion engine 403 is Deutz TCG2020.

[0068] Embodiment 3

[0069] See also Figure 1 , Figure 4 , Figure 8-Figure 10 The present invention provides a technical solution: a mounting shell 5 connected to the fermentation box 1 is arranged on the outer side of the biogas treatment box 4, and a movable plate 508 that fits the outer surface of the fermentation box 1 is equidistantly arranged at the inner end of the mounting shell 5, and is used to knock the outer surface of the fermentation box 1;

[0070] Furthermore, a driving disk 503 is disposed inside the mounting housing 5, and a driven disk 504 is disposed outside the driving disk 503;

[0071] The front end of the active disk 503 is connected to a toothless disk 505, and a movable supporting sleeve rod 506 is arranged on the outer side of the toothless disk 505;

[0072] A return spring 507 is provided at the right end of the movable support sleeve rod 506 , and the left end of the movable support sleeve rod 506 is connected to the movable plate 508 .

[0073] Furthermore, the active disk 503 and the driven disk 504 are connected in a meshing manner, and the diameter of the active disk 503 is larger than the diameter of the driven disk 504, so as to distinguish the rotation path;

[0074] The driving disk 503 and the driven disk 504 are arranged alternately up and down on the inner side of the mounting housing 5 .

[0075] Furthermore, the toothless disk 505 is connected to the movable support sleeve rod 506 in a meshing manner, and the inner lower surface of the movable support sleeve rod 506 is a smooth plane and is not connected to the toothless disk 505 .

[0076] Furthermore, the movable support sleeve rod 506 forms an elastic telescopic structure in the installation shell 5 through the return spring 507 , and the inner end of the movable support sleeve rod 506 passes through the inner side of the installation shell 5 and is fixedly connected to the movable plate 508 .

[0077] Specifically, in combination with the first embodiment, during the fermentation and stirring process, in conjunction with the operation of installing the housing 5, the animal feces can be effectively vibrated and scraped off, and the active disk 503 and the driven disk 504 are connected in a meshing manner, and the active disk 503 and the driven disk 504 are staggered up and down on the inner side of the installation housing 5. When the second servo motor 502 is turned on to rotate the active disk 503, the driven disk 504 can be driven to rotate synchronously. Since the diameter of the active disk 503 is larger than the diameter of the driven disk 504, when the active disk 503 drives the driven disk 504 to rotate, the active disk 503 rotates one circle and the driven disk 504 can rotate two circles, so that the adjacent active disks 503 rotate slowly, so that the rotation speed of the active disk 503 is different;

[0078] Since the toothless disk 505 is connected to the movable support sleeve rod 506 in an engaging manner, and the inner lower surface of the movable support sleeve rod 506 is a smooth plane, when the toothless disk 505 rotates toward the outer end, the movable support sleeve rod 506 is driven to be laterally compressed in the mounting shell 5 through the return spring 507. When the toothless disk 505 rotates to the smooth inner lower surface of the movable support sleeve rod 506, the toothless disk 505 is disengaged from the meshing state with the movable support sleeve rod 506, so that the movable support sleeve rod 506 is reset under the elastic potential energy of the return spring 507, prompting the movable plate 508 to knock the outer surface of the fermentation box body 1, and under the reciprocating motion of the toothless disk 505 and the movable support sleeve rod 506, the first scraper 3052 and the second scraper 3082 are synchronously used to vibrate and scrape the inner wall of the fermentation box body 1 to prevent residue adhesion during the stirring process.

[0079] Embodiment 4

[0080] Specifically, in combination with Embodiment 1, Embodiment 2 and Embodiment 3, after all parts are assembled, and animal manure is put into the fermentation box 1, when the first servo motor 303 is started to drive the central support column 305 and the outer lining empty pipe rack 308 to move, the animal manure can be fermented in the opposite rotation. At the same time, the movable plate 508 is used to continuously vibrate the outer surface of the fermentation box 1, so that during the stirring process, the animal manure is prevented from adhering to the inner wall of the fermentation box 1, reducing the subsequent cleaning effect, and under the action of the biogas treatment box 4, the biogas generated during the fermentation is centrally recovered and processed, so that the biogas is generated after the gas internal combustion engine 403. The electricity is stored in the backup battery 4031 and connected to the main battery 4032. They are interconnected to provide power supply for the first servo motor 303, the booster pump 3021 and the second servo motor 502. Under the combined action of the upper cover plate 3, the biogas treatment box 4 and the mounting shell 5, not only can the animal manure be effectively fermented and stirred, but the biogas generated during the fermentation can also be recovered and utilized. When the biogas is converted, it forms electrical energy and supplies electrical energy to the driving parts of the upper cover plate 3 and the mounting shell 5, and the mounting shell 5 is used in conjunction with the upper cover plate 3 for vibration scraping. The combined use of the upper cover plate 3 and the biogas treatment box 4, the combined use of the upper cover plate 3 and the mounting shell 5, and the coordinated use of the upper cover plate 3, the biogas treatment box 4 and the mounting shell 5 enable the device to better ferment animal manure.

[0081] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A fermentation device, characterized in that: It comprises a fermentation box (1), wherein an upper cover plate (3) for opening and closing and sealing is installed at the upper end of the fermentation box (1), and a spray head (3024) for spraying clean water on the inner wall of the fermentation box (1) is arranged at the lower edge of the upper cover plate (3); A biogas treatment box (4) is arranged in the middle of the outer side of the fermentation box (1) for collecting and utilizing the generated biogas; a mounting shell (5) connected to the fermentation box (1) is arranged on the outer side of the biogas treatment box (4); movable plates (508) which are in contact with the outer surface of the fermentation box (1) are arranged equidistantly at the inner end of the mounting shell (5) for knocking the outer surface of the fermentation box (1).

2. A fermentation device according to claim 1, characterized in that: The lower end of the water storage tank (302) is provided with a fixed support pipe rack (301) which is fixedly connected to the upper top cover plate (3) and is used to support the water storage tank (302) as a whole and allow liquid to flow through the circulation cavity (3023); A first conical disk (304) is installed in the middle of the inner side of the upper cover plate (3), a central support column (305) is fixedly connected to the middle of the lower end of the first conical disk (304), and a second conical disk (306) connected to the upper cover plate (3) is arranged on the right side of the first conical disk (304); The lower end of the second conical disk (306) is connected to the third conical disk (307), and the lower end of the third conical disk (307) is fixedly provided with an outer lining hollow pipe rack (308) sleeve-connected to the central support column (305).

3. A fermentation device according to claim 2, characterized in that: The outer surface of the lower end of the upper cover plate (3) is provided with a rubber sealing ring (309) arranged in an annular shape, and is connected to the fermentation box body (1) by means of a snap fit; The lower end of the central support column (305) is fixedly connected to a movable bottom plate (3051), and the outer side of the movable bottom plate (3051) is provided with a first scraper (3052) that is closely connected to the inner wall of the fermentation box (1); The outer end of the outer lining hollow pipe rack (308) is equidistantly mounted with stirring rods (3081), and the outer end of the stirring rod (3081) is fixedly mounted with a second scraper (3082).

4. A fermentation device according to claim 3, characterized in that: The first conical disk (304) and the third conical disk (307) are connected to the second conical disk (306) in a meshing manner, and the first conical disk (304) and the third conical disk (307) rotate in opposite directions; The central support column (305) and the outer lining hollow pipe rack (308) are connected in a wrapping nesting manner; The outer surfaces of the first scraper (3052) and the second scraper (3082) are both arranged to fit closely with the inner wall of the fermentation box (1).

5. A fermentation device according to claim 1, characterized in that: A layered filter (401) is arranged on the inner side of the upper end of the biogas treatment box (4), a flow cavity (402) is provided on the inner side of the biogas treatment box (4), the lower end of the flow cavity (402) is connected to a gas internal combustion engine (403) located on the lower side of the biogas treatment box (4), and a combined connection bridge (406) is arranged on the outer side of the lower end of the biogas treatment box (4) for connecting with another single structure.

6. A fermentation device according to claim 5, characterized in that: The biogas processing box (4) and the layered filter screen (401) are connected by bonding, and the layered filter screen (401) is arranged in an inclined manner as a whole, so as to increase the filtering area; The biogas treatment box (4) is connected to the upper cover plate (3) by means of a snap fit, and is threadedly connected to the fermentation box (1) by means of a first adjusting bolt (405) provided on the outer side, which is used to connect the upper cover plate (3) and the fermentation box (1) at a limit position; A detachable structure is provided between the biogas processing box (4) and the combined connecting bridge (406), and is used to disassemble the biogas processing box (4) as a whole for easy assembly.

7. A fermentation device according to claim 1, characterized in that: A driving disk (503) is disposed inside the mounting housing (5), and a driven disk (504) is disposed outside the driving disk (503); The front end of the active disk (503) is connected to a toothless disk (505), and a movable supporting sleeve rod (506) is arranged on the outer side of the toothless disk (505); A return spring (507) is disposed at the right end of the movable support sleeve rod (506), and the left end of the movable support sleeve rod (506) is connected to a movable plate (508).

8. A fermentation device according to claim 7, characterized in that: The active disk (503) and the driven disk (504) are connected in a meshing manner, and the diameter of the active disk (503) is larger than the diameter of the driven disk (504) so ​​as to distinguish the rotation path; The active disk (503) and the driven disk (504) are arranged alternately up and down on the inner side of the mounting housing (5).

9. A fermentation device according to claim 7, characterized in that: The toothless disk (505) and the movable support sleeve rod (506) are connected in a meshing manner, and the inner lower surface of the movable support sleeve rod (506) is a smooth plane and is not connected to the toothless disk (505).

10. A fermentation device according to claim 7, characterized in that: The movable support sleeve rod (506) forms an elastic telescopic structure in the installation shell (5) through a return spring (507); the inner end of the movable support sleeve rod (506) passes through the inner side of the installation shell (5) and is fixedly connected to the movable plate (508).

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