Closed excrement fermentation device with gas recycling function

By introducing a gas collection and purification system into the manure fermentation device, the problem of fermentation gas pollution in the environment has been solved, the gas has been effectively recovered and utilized, and the practicality of the device has been improved.

CN224677956UActive Publication Date: 2026-08-25SHIJIAZHUANG YOUDAO BIO-ORGANIC FERTILIZER CO LTD
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Patent Information

Application Number
CN202522141398.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-10
Publication Date
2026-08-25
Estimated Expiration
2035-10-10

AI Technical Summary

Technical Problem

Existing manure fermentation devices generate gases during the fermentation process that are discharged with the manure, polluting the environment and reducing the practicality of the devices.

Method used

A closed-loop manure fermentation device with gas recovery function was designed, including a gas collection box, an air inlet pipe, a blower, an activated carbon mesh, and an electrically controlled valve. The fermentation gas is extracted by the blower and purified by the activated carbon mesh. Some of the gas is retained in the gas collection box, and some of the gas is discharged for reuse.

Benefits of technology

This technology enables the purification and partial collection of gases, preventing fermentation gases from being discharged with manure and polluting the environment, thus improving the practicality of the device and supporting the subsequent utilization of the gases.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a closed excrement and nightsoil fermentation device with gas recovery function, including fermentation tank, the closed excrement and nightsoil fermentation device with gas recovery function still includes gas collection tank, and the gas collection tank sets up at the left side of fermentation tank, and the bottom fixed mounting of gas collection tank right side has the installation column. In the above -mentioned scheme, when the fermentation in fermentation tank is completed, through the control setting in the outside of the electric control valve no. 1 of communicating pipe, make communicating pipe be in the open state, and the gas can be simply purified through the two activated carbon nets set, to remove the peculiar smell contained in the gas, and then make the communicating pipe barrier through the electric control valve no. 1, so that part of the gas can be retained in the gas collection tank, and the subsequent electric control valve no. 2 can make the air outlet pipe be in the open state, to discharge the gas for use, so as to realize the purification and partial collection of the gas, prevent the fermentation gas from discharging with excrement and nightsoil and polluting the environment, thereby improving the device practicability.
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Description

Technical Field

[0001] This utility model relates to the technical field of manure fermentation devices, and more specifically, to a closed manure fermentation device with gas recovery function. Background Technology

[0002] Livestock and poultry manure, also known as livestock and poultry waste, mainly refers to a type of rural solid waste generated in the livestock and poultry breeding industry, including pig manure, cow manure, sheep manure, chicken manure, duck manure, etc. When treating these livestock and poultry manure, fermentation can be used. Fermentation tanks are usually used. Existing equipment directly pours the manure and microbial inoculants into the fermentation tank for mixing and stirring to achieve fermentation. However, the direct introduction of the two can easily lead to insufficient contact between the manure and microbial inoculants, which will reduce the fermentation effect and result in poor performance.

[0003] To address the aforementioned issues, patent document publication number CN221701344U discloses a livestock and poultry manure fermentation device, comprising a fermentation tank, a spraying mechanism, and a stirring mechanism. A discharge pipe is fixedly installed at the bottom of the fermentation tank and is connected to the interior of the fermentation tank. A discharge valve is installed on the discharge pipe. A spraying mechanism is installed on one outer wall of the fermentation tank. A motor is fixedly installed on the top of the fermentation tank, and a feed pipe is fixedly installed on the other side of the motor.

[0004] However, it still has some drawbacks in actual use. For example, mixed gas is generated during the fermentation of manure, but the above-mentioned device does not have a corresponding structure, so the gas is discharged with the manure after fermentation is completed, which can easily affect the surrounding environment and reduce the practicality of the device to a certain extent. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a closed manure fermentation device with gas recovery function to solve the problem that the gas generated during the fermentation process of the prior art will be discharged with the manure and pollute the environment.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a closed-loop manure fermentation device with gas recovery function, including a fermentation tank, and the closed-loop manure fermentation device with gas recovery function further includes...

[0007] A gas collection box is located on the left side of the fermentation box. A mounting column is fixedly installed at the bottom right side of the gas collection box. The side of the mounting column relative to the gas collection box in the length direction is fixedly connected to the left side of the fermentation box.

[0008] An air inlet pipe, one end of which is fixedly connected to the right side of the gas collection box, and the other end of which is fixedly connected to the left side of the fermentation box relative to the gas collection box.

[0009] A fixed frame is fixedly installed on the left side of the gas collection box. A fan is provided on the top surface of the fixed frame. A connecting pipe is fixedly connected to the port of the fan. One end of the connecting pipe opposite to the fan is fixedly connected to the left side of the gas collection box. An electrically controlled valve is provided around the connecting pipe.

[0010] The gas outlet pipe is fixedly connected to the bottom surface of the gas collection box at its top end, and an electrically controlled valve is installed around the gas outlet pipe.

[0011] It also includes an installation ring, which is set around the air inlet pipe. The surface of the installation ring is provided with a sealing ring, and the side of the sealing ring opposite to the installation ring is in contact with the connection between the fermentation box and the air inlet pipe.

[0012] The device also includes a sealing gasket, a connecting seat, a mounting plate, and an activated carbon mesh. The sealing gasket is fixedly installed on the outer wall of the air intake pipe. The mounting plate is positioned opposite each other on the bottom surface of the connecting seat. The activated carbon mesh is positioned on the bottom surface of the mounting plate, with the edge of the activated carbon mesh fitting against the inner wall of the air intake pipe. The outer periphery of the mounting plate fits against the inner wall of the sealing gasket.

[0013] The device also includes a fixing plate, a connecting frame, a screw, and a plug-in plate. The fixing plate is fixedly installed on the surface of the intake pipe. The bottom end of the connecting frame is fixedly connected to the surface of the fixing plate. The screw is rotatably installed on the top end of the connecting frame. The surface of the screw is threadedly connected to the inner wall of the plug-in plate. The surface of the plug-in plate is slidably connected to the inner wall of the top of the fixing plate. The side of the plug-in plate opposite to the screw is engaged with the surface of the connecting seat.

[0014] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0015] In the above scheme, after fermentation in the fermentation chamber is completed, the connecting pipe is opened by controlling the first electrically controlled valve located outside the connecting pipe. At the same time, the fan is started to draw the gas generated during fermentation out of the fermentation chamber through the air inlet pipe. The gas is then purified by passing through two activated carbon meshes to remove odors. Afterward, the connecting pipe is blocked by the first electrically controlled valve, allowing some gas to be retained in the gas collection box. Subsequently, the gas outlet pipe can be opened by the second electrically controlled valve to discharge the gas for use. This achieves gas purification and partial collection, preventing fermentation gas from being discharged with manure and polluting the environment, thereby improving the practicality of the device.

[0016] By rotating the screw set on the top of the connecting frame, the plug plate moves horizontally. At this time, one side of the plug plate separates from the slot on the side of the connecting seat. Then, the two activated carbon meshes can be moved out of the air inlet pipe by moving the connecting seat upwards to clean and maintain the activated carbon meshes, so that the activated carbon meshes can continue to adsorb and purify the gas, further improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional assembly drawing of the overall device of this utility model;

[0019] Figure 3 This is a schematic diagram of the intake pipe structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the relevant structure of the plug-in plate and fixing plate of this utility model.

[0021] [Figure Labels]

[0022] 1. Fermentation chamber; 2. Gas collection chamber; 3. Mounting column; 5. Air inlet pipe; 6. Fixing frame; 7. Fan; 8. Connecting pipe; 9. Electrically controlled valve one; 10. Air outlet pipe; 11. Electrically controlled valve two; 12. Mounting ring; 13. Sealing ring; 14. Sealing gasket; 15. Connecting seat; 16. Mounting plate; 17. Activated carbon mesh; 18. Fixing plate; 19. Connecting frame; 20. Screw; 21. Insert plate. Detailed Implementation

[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0024] As attached Figure 1 To be continued Figure 4 An embodiment of this utility model provides a closed-loop manure fermentation device with gas recovery function, including a fermentation tank 1, and the closed-loop manure fermentation device with gas recovery function also includes...

[0025] Gas collection box 2 is located on the left side of fermentation box 1. A mounting column 3 is fixedly installed on the bottom right side of gas collection box 2. The side of mounting column 3 relative to gas collection box 2 in the length direction is fixedly connected to the left side of fermentation box 1.

[0026] The air inlet pipe 5 has one end fixedly connected to the right side of the gas collection box 2 and the other end fixedly connected to the left side of the fermentation box 1. A one-way movable diaphragm is provided at the end of the air inlet pipe 5 near the gas collection box 2. When the gas enters the gas collection box 2 under the action of the fan 7, the diaphragm flips to make the air inlet pipe 5 open. When there is no wind, the diaphragm can block the air inlet pipe 5, so that the gas in the collection box 2 can no longer be discharged in reverse through the air inlet pipe 5.

[0027] A fixed frame 6 is fixedly installed on the left side of the gas collection box 2. A fan 7 is provided on the top surface of the fixed frame 6. A connecting pipe 8 is fixedly connected to the port of the fan 7. One end of the connecting pipe 8 relative to the fan 7 is fixedly connected to the left side of the gas collection box 2. An electric control valve 9 is provided around the connecting pipe 8.

[0028] The top end of the gas outlet pipe 10 is fixedly connected to the bottom surface of the gas collection box 2, and an electric control valve 11 is provided around the gas outlet pipe 10.

[0029] The system also includes an installation ring 12, which is located around the air inlet pipe 5. A sealing ring 13 is provided on the surface of the installation ring 12. The side of the sealing ring 13 opposite to the installation ring 12 fits against the connection between the fermentation box 1 and the air inlet pipe 5. The installation ring 12 can be used to fix the air inlet pipe 5. At the same time, the sealing ring 13 installed on one side of the installation ring 12 can seal the gap between the air inlet pipe 5 and the fermentation box 1 to prevent gas leakage.

[0030] The system also includes a sealing gasket 14, a connecting seat 15, a mounting plate 16, and an activated carbon mesh 17. The sealing gasket 14 is fixedly installed on the outer wall of the air inlet pipe 5. The mounting plate 16 is positioned opposite each other on the bottom surface of the connecting seat 15. The activated carbon mesh 17 is positioned on the bottom surface of the mounting plate 16. The edge of the activated carbon mesh 17 is in contact with the inner wall of the air inlet pipe 5, and the outer periphery of the mounting plate 16 is in contact with the inner wall of the sealing gasket 14. Through the two activated carbon meshes 17, the absorbed gas can be treated twice to remove odors from the gas, so that the collected gas can be directly utilized in the future.

[0031] The system also includes a fixing plate 18, a connecting bracket 19, a screw 20, and a plug-in plate 21. The fixing plate 18 is fixedly installed on the surface of the intake pipe 5. The bottom end of the connecting bracket 19 is fixedly connected to the surface of the fixing plate 18. The screw 20 is rotatably installed on the top end of the connecting bracket 19. The surface of the screw 20 is threadedly connected to the inner wall of the plug-in plate 21. The surface of the plug-in plate 21 is slidably connected to the inner wall of the top of the fixing plate 18. The side of the plug-in plate 21 opposite to the screw 20 is engaged with the surface of the connecting seat 15.

[0032] The electrical control equipment set in the entire device, such as fan 7 and electric control valve 9, is controlled by the main control button. Since the equipment matched with the control button is common equipment and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0033] The working process of this utility model is as follows: After fermentation in the fermentation box 1 is completed, the electric control valve 9 set outside the connecting pipe 8 is controlled to make the connecting pipe 8 open. At the same time, the fan 7 is started to draw the gas generated during fermentation out of the fermentation box 1 through the air inlet pipe 5. The gas can be simply purified by passing through the two activated carbon meshes 17 to remove the odor contained in the gas. Then, the connecting pipe 8 is blocked by the electric control valve 9 so that some gas can be retained in the gas collection box 2. Subsequently, the gas outlet pipe 10 can be opened by the electric control valve 11 to discharge the gas for use.

[0034] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0035] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0036] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A closed-loop manure fermentation device with gas recovery function, comprising a fermentation tank (1), characterized in that, The closed-loop manure fermentation device with gas recovery function also includes Gas collection box (2), the gas collection box (2) is located on the left side of fermentation box (1), and an installation column (3) is fixedly installed on the bottom right side of the gas collection box (2). The side of the installation column (3) relative to the gas collection box (2) in the length direction is fixedly connected to the left side of fermentation box (1). An air inlet pipe (5) is fixedly connected to the right side of a gas collection box (2) at one end, and to the left side of a fermentation box (1) at the other end of the air inlet pipe (5) relative to the gas collection box (2). A fixed frame (6) is fixedly installed on the left side of the gas collection box (2). A fan (7) is provided on the top surface of the fixed frame (6). A connecting pipe (8) is fixedly connected to the port of the fan (7). One end of the connecting pipe (8) relative to the fan (7) is fixedly connected to the left side of the gas collection box (2). An electric control valve (9) is provided around the connecting pipe (8). The top end of the gas outlet pipe (10) is fixedly connected to the bottom surface of the gas collection box (2), and an electric control valve (11) is provided around the gas outlet pipe (10).

2. The closed-loop manure fermentation device with gas recovery function according to claim 1, characterized in that, It also includes an installation ring (12), which is located around the air inlet pipe (5). A sealing ring (13) is provided on the surface of the installation ring (12). The side of the sealing ring (13) opposite to the installation ring (12) is in contact with the connection between the fermentation box (1) and the air inlet pipe (5).

3. The closed-loop manure fermentation device with gas recovery function according to claim 1, characterized in that, It also includes a sealing gasket (14), a connecting seat (15), a mounting plate (16), and an activated carbon mesh (17). The sealing gasket (14) is fixedly installed on the outer wall of the air inlet pipe (5). The mounting plate (16) is arranged opposite to each other on the bottom surface of the connecting seat (15). The activated carbon mesh (17) is arranged on the bottom surface of the mounting plate (16). The edge of the activated carbon mesh (17) is in contact with the inner wall of the air inlet pipe (5). The outer periphery of the mounting plate (16) is in contact with the inner wall of the sealing gasket (14).

4. The closed-loop manure fermentation device with gas recovery function according to claim 1, characterized in that, It also includes a fixing plate (18), a connecting frame (19), a screw (20), and a plug plate (21). The fixing plate (18) is fixedly installed on the surface of the air intake pipe (5). The bottom end of the connecting frame (19) is fixedly connected to the surface of the fixing plate (18). The screw (20) is rotatably installed on the top end of the connecting frame (19). The surface of the screw (20) is threadedly connected to the inner wall of the plug plate (21). The surface of the plug plate (21) is slidably connected to the inner wall of the top of the fixing plate (18). The side of the plug plate (21) opposite to the screw (20) is engaged with the surface of the connecting seat (15).

Citation Information

Patent Citations

  • Livestock and poultry manure fermentation device

    CN221701344U