Solid-liquid two-phase anaerobic fermentation device for kitchen residues

Abstract

According to the kitchen residue solid-liquid two-phase anaerobic fermentation device, a crushing tank is installed on a fermentation tank, kitchen residues can be put on a knife rest of the crushing tank, a lead screw is installed in the middle of the knife rest, a pressing plate is in threaded connection with the lead screw, and when a servo motor drives the lead screw to rotate in a reciprocating mode, the pressing plate can move up and down along the lead screw; when the pressing plate moves towards the knife rest, residues on the knife rest can be pressed downwards, the pressing plate is matched with the knife rest to crush the residues, so that the residues are crushed into smaller blocks, the crushed residues fall into the fermentation box, the pressing plate is connected with a vertical rod, the vertical rod is connected with a blocking rod, and the blocking rod can move up and down along with the pressing plate. When the fermentation tank is broken, the through hole of the blocking rod moves to the position of the connecting pipe, and the bacterial liquid in the bacterial liquid tank flows into the linkage rod in batches and components during movement and is finally discharged into the fermentation tank, so that the bacterial liquid is mixed with crushed residues, and rapid mixing can be realized by matching with stirring of the stirring frame, so that the fermentation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of residue fermentation processes, in particular to a kitchen residue solid-liquid two-phase anaerobic fermentation device. BACKGROUND

[0002] Anaerobic fermentation treatment of kitchen waste refers to a process in which organic substances in the waste are degraded into small molecules under the action of anaerobic bacteria, and finally converted into biogas. The biogas produced after the kitchen waste is degraded by anaerobic fermentation can be converted into electric energy and heat energy in a cogeneration generator set, the electric energy can be connected to the power grid for production and life use, and the heat energy can supplement part of the heat energy demand of municipal heating facilities after being used by the waste treatment equipment itself, thereby realizing a win-win situation of economic benefits and social benefits.

[0003] When kitchen residues are subjected to anaerobic fermentation, the residues need to be put into a fermentation tank, and then the prepared bacterial liquid is put into the fermentation tank. However, the process cannot realize efficient mixing of the residues and the bacterial liquid, so that efficient treatment of the residues cannot be realized, and the efficiency of residue treatment is reduced. SUMMARY

[0004] One of the purposes of the application is to provide a kitchen residue solid-liquid two-phase anaerobic fermentation device.

[0005] To achieve the above purposes, the technical scheme adopted by the application is as follows: a kitchen residue solid-liquid two-phase anaerobic fermentation device, comprising a fermentation tank, a lead screw, a servo motor, a feeding port and a discharge port, a crushing tank is arranged on the fermentation tank, the feeding port is located at the top end of one side of the crushing tank, a linkage rod is connected to the servo motor at the top end of the crushing tank, the linkage rod is hollow, the linkage rod communicates with the fermentation tank, a tool holder is arranged in the crushing tank, a pressing plate is arranged in the space above the tool holder, the pressing plate is arranged in the output direction of the servo motor, a mesh plate is arranged obliquely in the fermentation tank, the mesh plate is located below the tool holder, a side frame is overlapped on the mesh plate, and the side frame is connected with the servo motor.

[0006] Preferably, a support is installed at the top end of the crushing tank, the support is integrally arranged in a U-shaped mode, a servo motor is connected to the support, and the linkage rod at the output end of the servo motor penetrates through the support and extends into the crushing tank.

[0007] Preferably, a connecting pipe is installed on the side wall of the support, the connecting pipe is integrally arranged in an L-shaped mode, one end of the connecting pipe communicates with the linkage rod, and the other end of the connecting pipe communicates with a bacterial liquid tank.

[0008] Preferably, a lead screw is installed on the linkage rod in the crushing tank, the lead screw is hollow, the lead screw and the linkage rod penetrate each other, a pressing plate is threadedly connected to the lead screw, and the pressing plate is integrally arranged in a circular plate shape.

[0009] Preferably, the edge of the pressing plate is provided with a vertical rod arranged vertically on the pressing plate, and the top end of the vertical rod is provided with a plug rod penetrating the crushing tank and located outside the crushing tank.

[0010] Preferably, the plug rod outside the crushing tank is provided with a through opening, the plug rod is slidingly connected to the connecting pipe, and the through opening of the plug rod and the flow channel of the connecting pipe are mutually penetrated.

[0011] Preferably, the lower end of the lead screw is located in the fermentation tank, the lead screw in the fermentation tank is provided with a stirring frame, and the stirring frame is located in the upper space of the mesh plate.

[0012] Preferably, one end of the mesh plate is rotationally connected in the fermentation tank, the other end of the mesh plate is provided with a return spring, and the return spring is respectively hung on the mesh plate and the fermentation tank.

[0013] Preferably, the roller is rotationally connected to the side frame, the side frame is welded to the side wall of the lead screw below the stirring frame, the side frame is integrally arranged in an inclined manner, and the side frame is inclined towards the mesh plate.

[0014] Compared with the prior art, the application has the following beneficial effects: 1. The kitchen residue solid-liquid two-phase anaerobic fermentation device, by installing a crushing tank on the fermentation tank, kitchen residues are put on the knife holder of the crushing tank, a lead screw is installed at the middle position of the knife holder, a pressing plate is threadedly connected to the lead screw, the pressing plate moves up and down along the lead screw when the lead screw rotates driven by the servo motor, the pressing plate moves to the position of the knife holder, the pressing plate presses the residues on the knife holder when moving to the position of the knife holder, and the residues are crushed by the pressing plate cooperating with the knife holder, so that the residues are crushed into smaller pieces, the crushed residues fall into the fermentation tank, a vertical rod is connected to the pressing plate, a plug rod is connected to the vertical rod, the plug rod moves up and down with the pressing plate, the through opening of the plug rod moves to the position of the connecting pipe, the bacteria liquid in the bacteria tank is batched and metered to flow into the connecting rod when moving, and finally discharged into the fermentation tank, so as to mix with the crushed residues, and the rapid mixing is realized by the stirring of the stirring frame, so as to improve the fermentation efficiency.

[0015] 2. The kitchen residue solid-liquid two-phase anaerobic fermentation device, a mesh plate is installed in the fermentation tank, the mesh plate can rotate in the fermentation tank, a return spring is installed at the other end of the mesh plate, the mesh plate is tilted when being pushed by the return spring, rollers are lapped at the position of the mesh plate, the rollers are connected to side frames, the side frames are installed on the lead screw, the side frames can drive the rollers to rotate when the lead screw rotates, the side frames press the mesh plate when moving, the side frames move away from the mesh plate, the mesh plate is reset by the return spring, so that the solid-liquid in the fermentation tank is stirred, the secondary mixing of the residues and the bacteria liquid is realized, and the fermentation efficiency of the residues is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is an overall sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the tool holder structure in this invention.

[0019] Figure 4 This is a schematic diagram of the structure of the stirring rack in this invention.

[0020] Figure 5 This is a schematic diagram of the through-port structure in this invention.

[0021] In the diagram: 1. Fermentation tank; 2. Crushing tank; 3. Bacterial liquid tank; 4. Servo motor; 5. Support; 6. Feeding port; 7. Discharge port; 8. Connecting pipe; 9. Linkage rod; 10. Lead screw; 11. Pressure plate; 12. Vertical rod; 13. Knife holder; 14. Mesh plate; 15. Roller; 16. Side frame; 17. Stirring rack; 18. Return spring; 19. Through port; 20. Blocking rod. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1 to 5 As shown, the present invention provides a two-phase anaerobic fermentation device for kitchen waste, comprising a fermentation tank 1, a lead screw 10, a servo motor 4, a feeding port 6, and a discharge port 7. A crushing tank 2 is mounted on the fermentation tank 1. The feeding port 6 is located at the top of one side of the crushing tank 2. A linkage rod 9 is connected to the servo motor 4 at the top of the crushing tank 2. The linkage rod 9 is hollow and communicates with the fermentation tank 1. A blade holder 13 is provided inside the crushing tank 2. A pressure plate 11 is provided in the space above the blade holder 13, and the pressure plate 11 is arranged in the output direction of the servo motor 4. A screen plate 14 is inclined inside the fermentation tank 1. Below the blade holder 13, a side frame 16 is attached to the mesh plate 14. The side frame 16 is connected to the servo motor 4. The kitchen waste to be processed is placed into the crushing tank 2, and then the servo motor 4 is started. The servo motor 4 will drive the linkage rod 9 to rotate, and the pressure plate 11 will move down along the screw 10. The pressure plate 11 will work with the blade holder 13 to crush the waste into small pieces. As the pressure plate 11 moves down, the bacterial liquid will flow into the linkage rod 9 and finally be discharged into the fermentation tank 1. The waste can then be mixed with the bacterial liquid. After being acted upon by the stirring rack 17 and the mesh plate 14, it can be quickly mixed, thereby improving the fermentation processing efficiency. The top end of the crushing tank 2 is provided with a support 5, which is in the shape of a U as a whole, and a servo motor 4 is connected to the support 5. The linkage rod 9 at the output end of the servo motor 4 penetrates through the support 5 and extends into the crushing tank 2, so that the servo motor 4 can be supported by the support 5, and the connection space of the connecting pipe 8 and the linkage rod 9 is reserved; A connecting pipe 8 is mounted on the side wall of the support 5, which is in the shape of L as a whole. One end of the connecting pipe 8 is communicated with the linkage rod 9, and the other end of the connecting pipe 8 is communicated with the bacteria liquid tank 3. Through the arrangement of the connecting pipe 8, the bacteria liquid can flow into the linkage rod 9 through the bacteria liquid tank 3 and finally be discharged into the fermentation tank 1. In the implementation, the kitchen residues are put on the knife holder 13 of the crushing tank 2. A screw rod 10 is mounted at the middle position of the knife holder 13. A pressing plate 11 is threadedly connected to the screw rod 10. When the servo motor 4 reciprocatingly drives the screw rod 10 to rotate, the pressing plate 11 moves up and down along the screw rod 10. The pressing plate 11 moves to the position of the knife holder 13. When the pressing plate 11 moves to the position of the knife holder 13, it presses the residues on the knife holder 13. The pressing plate 11 and the knife holder 13 can crush the residues, so that the residues are crushed into smaller pieces. The crushed residues fall into the fermentation tank. A vertical rod 12 is connected to the pressing plate 11. The vertical rod 12 is connected to a blocking rod 20. The blocking rod 20 moves up and down with the pressing plate 11. The opening 19 of the blocking rod 20 moves to the position of the connecting pipe 8. When the opening 19 moves, the bacteria liquid in the bacteria liquid tank 3 is discharged into the linkage rod 9 in batches and in a certain amount, and finally is discharged into the fermentation tank 1, so as to be mixed with the crushed residues. The mixing is realized by the stirring of the stirring frame 17, so as to improve the fermentation efficiency. A screw rod 10 is mounted on the linkage rod 9 in the crushing tank 2. The screw rod 10 is hollow. The screw rod 10 and the linkage rod 9 are mutually penetrated. A pressing plate 11 is threadedly connected to the screw rod 10. The pressing plate 11 is in the shape of a circular plate as a whole. Through the penetration of the screw rod 10 and the linkage rod 9, the bacteria liquid can be discharged into the fermentation tank 1. A vertical rod 12 is arranged at the edge position of the pressing plate 11. The vertical rod 12 is vertically arranged on the pressing plate 11. A blocking rod 20 is arranged at the top end of the vertical rod 12. The blocking rod 20 penetrates through the crushing tank 2 and is located outside the crushing tank 2. Through the pressing plate 11, the residues on the knife holder 13 can be pressed. The pressing plate 11 and the knife holder 13 can crush the residues into small pieces. An opening 19 is formed in the blocking rod 20 outside the crushing tank 2. The blocking rod 20 is slidingly connected to the connecting pipe 8. The opening 19 of the blocking rod 20 and the flow channel of the connecting pipe 8 are mutually penetrated. Through the arrangement of the opening 19, the connecting pipe 8 can be connected. When the opening 19 is away from the connecting pipe 8, the blocking rod 20 can cut off the connecting pipe 8, so as to realize the batch and quantitative feeding of the bacteria liquid. The lower end of the screw rod 10 is located in the fermentation tank 1. A stirring frame 17 is arranged on the screw rod 10 in the fermentation tank 1. The stirring frame 17 is located in the space above the mesh plate 14. Through the stirring frame 17, the solid-liquid can be stirred. One end of the net plate 14 is rotationally connected in the fermentation tank 1, the other end of the net plate 14 is provided with a reset spring 18, the reset spring 18 is respectively hung on the net plate 14 and the fermentation tank 1, through the reset spring 18, the net plate 14 can be reset after being pressed down; The roller 15 is rotationally connected on the side frame 16, the side frame 16 is welded on the side wall of the lead screw 10 below the stirring frame 17, the side frame 16 is inclined as a whole, the side frame 16 is inclined towards the net plate 14, through the side frame 16, the net plate 14 can be pressed down when rotating; In the implementation, the fermentation tank 1 is provided with the net plate 14, the net plate 14 can rotate in the fermentation tank 1, the other end of the net plate 14 is provided with the reset spring 18, the net plate 14 will be inclined when being pressed by the reset spring 18, the net plate 14 is provided with the roller 15, the roller 15 is connected on the side frame 16, the side frame 16 is installed on the lead screw 10, when the lead screw 10 rotates, the side frame 16 can drive the roller 15 to rotate, when the side frame 16 moves, the net plate 14 will be pressed down, when the side frame 16 continues to move, the net plate 14 will be away from the net plate 14, the net plate 14 will be reset through the reset spring 18, so that the solid and liquid in the fermentation tank 1 are stirred, so that the residue and the bacterial liquid are mixed again, so that the fermentation efficiency of the residue is improved.

[0024] The working principle of the present application is that: by installing the crushing tank 2 on the fermentation tank 1, the kitchen waste is put on the knife holder 13 of the crushing tank 2, the middle position of the knife holder 13 is provided with a lead screw 10, the lead screw 10 is threadedly connected with a pressing plate 11, when the servo motor 4 reciprocatingly drives the lead screw 10 to rotate, the pressing plate 11 will move up and down along the lead screw 10, the pressing plate 11 will move to the position of the knife holder 13, when the pressing plate 11 moves to the position of the knife holder 13, the waste on the knife holder 13 will be pressed down, the pressing plate 11 can crush the waste together with the knife holder 13, so that the waste is crushed into smaller pieces, the crushed waste falls into the fermentation tank, the pressing plate 11 is connected with a vertical rod 12, the vertical rod 12 is connected with a plug rod 20, the plug rod 20 can move up and down with the pressing plate 11, the through hole 19 of the plug rod 20 will move to the position of the connecting pipe 8, when moving, the bacteria liquid in the bacteria liquid tank 3 will be batched and metered into the linkage rod 9, and finally discharged into the fermentation tank 1, so as to mix with the crushed waste, and the stirring of the stirring frame 17 can realize rapid mixing, so as to improve the fermentation efficiency, the fermentation tank 1 is provided with a mesh plate 14, the mesh plate 14 can rotate in the fermentation tank 1, the other end of the mesh plate 14 is provided with a return spring 18, the mesh plate 14 is pushed by the return spring 18 and will be in an inclined state, the mesh plate 14 is overlapped with a roller 15, the roller 15 is connected with a side frame 16, the side frame 16 is installed on the lead screw 10, when the lead screw 10 rotates, the side frame 16 can drive the roller 15 to rotate, when the side frame 16 moves, the mesh plate 14 will be pressed down, when the side frame 16 continues to move, the mesh plate 14 will be away from the mesh plate 14, the mesh plate 14 will be reset by the return spring 18, so that the solid-liquid in the fermentation tank 1 is stirred, so as to realize the secondary mixing of the waste and the bacteria liquid, so as to improve the fermentation efficiency of the waste.

[0025] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, the above embodiments and descriptions in the specification are only the principles of the present application, various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A two-phase anaerobic fermentation device for kitchen waste, comprising a fermentation tank (1), a lead screw (10), a servo motor (4), a feeding port (6), and a discharge port (7), characterized in that: The fermentation tank (1) is equipped with a crushing tank (2). The feeding port (6) is located at the top of one side of the crushing tank (2). A linkage rod (9) is connected to the servo motor (4) at the top of the crushing tank (2). The linkage rod (9) is hollow and communicates with the fermentation tank (1). A knife holder (13) is provided inside the crushing tank (2). A pressure plate (11) is provided in the space above the knife holder (13). The pressure plate (11) is arranged in the output direction of the servo motor (4). A mesh plate (14) is inclined inside the fermentation tank (1). The mesh plate (14) is located below the knife holder (13). A side frame (16) is attached to the mesh plate (14). The side frame (16) is connected to the servo motor (4).

2. The two-phase anaerobic fermentation device for kitchen waste as described in claim 1, characterized in that: The top of the crushing tank (2) is equipped with a support (5), which is U-shaped. A servo motor (4) is connected to the support (5), and the linkage rod (9) at the output end of the servo motor (4) passes through the support (5) and extends into the inside of the crushing tank (2).

3. The two-phase anaerobic fermentation device for kitchen waste as described in claim 2, characterized in that: A connecting pipe (8) is installed on the side wall of the support (5). The connecting pipe (8) is L-shaped. One end of the connecting pipe (8) is connected to the linkage rod (9), and the other end of the connecting pipe (8) is connected to the bacterial liquid tank (3).

4. The two-phase anaerobic fermentation device for kitchen waste as described in claim 1, characterized in that: A lead screw (10) is installed on the linkage rod (9) inside the crushing tank (2). The lead screw (10) is hollow and is connected to the linkage rod (9). A pressure plate (11) is threaded onto the lead screw (10). The pressure plate (11) is generally circular.

5. The two-phase anaerobic fermentation device for kitchen waste as described in claim 4, characterized in that: A vertical rod (12) is provided at the edge of the pressure plate (11). The vertical rod (12) is arranged vertically on the pressure plate (11). A blocking rod (20) is provided at the top of the vertical rod (12). The blocking rod (20) passes through the crushing tank (2) and is located outside the crushing tank (2).

6. The two-phase anaerobic fermentation device for kitchen waste as described in claim 5, characterized in that: The plug rod (20) outside the crushing tank (2) has an opening (19). The plug rod (20) is slidably connected to the connecting pipe (8). The opening (19) of the plug rod (20) is interconnected with the flow channel of the connecting pipe (8).

7. The two-phase anaerobic fermentation device for kitchen waste as described in claim 4, characterized in that: The lower end of the lead screw (10) is located inside the fermentation tank (1), and a stirring rack (17) is provided on the lead screw (10) inside the fermentation tank (1). The stirring rack (17) is located in the space above the mesh plate (14).

8. The two-phase anaerobic fermentation device for kitchen waste as described in claim 7, characterized in that: One end of the mesh plate (14) is rotatably connected inside the fermentation tank (1), and the other end of the mesh plate (14) is equipped with a return spring (18), which is respectively hung on the mesh plate (14) and the fermentation tank (1).

9. The two-phase anaerobic fermentation device for kitchen waste as described in claim 1, characterized in that: The roller (15) is rotatably connected to the side frame (16), which is welded to the side wall of the screw (10) below the stirring rack (17). The side frame (16) is inclined as a whole and tilts toward the mesh plate (14).

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