Anaerobic fermentation tank

Abstract

The utility model discloses an anaerobic fermentation tank which comprises a tank body, a tank top arranged on the tank body and a material injection port arranged on the tank top, a flow guide cover is arranged in the material injection port, an opposite-direction mincing mechanism used for smashing fermentation raw materials is arranged in the flow guide cover, the opposite-direction mincing mechanism comprises a first rotating roller and a second rotating roller, and the first rotating roller and the second rotating roller are arranged on the opposite-direction mincing mechanism. The first rotating roller and the second rotating roller are symmetrically and rotationally arranged in the flow guide cover, first crushing teeth are arranged on the first rotating roller, second crushing teeth are arranged on the second rotating roller, the first crushing teeth and the second crushing teeth are arranged in a staggered mode, and a transmission structure for driving the first rotating roller and the second rotating roller to rotate oppositely is further arranged on the flow guide cover. According to the device, in the fermentation raw material input process, large-particle fermentation raw materials can be smashed, the subsequent fermentation efficiency of the fermentation raw materials is improved, the fermentation raw materials in different areas in the tank body can be stirred, and the fermentation period of the fermentation raw materials can be shortened.

Description

Technical Field

[0001] The utility model relates to anaerobic fermentation, in particular to an anaerobic fermentation tank. Background Art

[0002] Anaerobic fermentation is a process in which waste is stabilized by the metabolic activity of microorganisms under anaerobic conditions, accompanied by the production of methane and CO2. Anaerobic fermentation is carried out in an anaerobic fermentation tank, so the quality of the fermentation tank directly affects the fermentation efficiency.

[0003] For example, an anaerobic fermentation tank disclosed in the utility model with the authorization announcement number CN210394349U includes a tank body and a spray scum removal system arranged on the top of the tank body; the spray scum removal system includes a spray pump and a spray water distributor connected to the spray pump pipeline, the spray water distributor is connected to multiple spray water inlets, and the spray pump pumps the liquid at the bottom of the tank body to the top of the tank body for spraying; a high-position slag discharge port is arranged above the inside of the tank body, and the high-position slag discharge port is connected to a slag discharge pipe; and an inclined slag discharge funnel is arranged on the top of the high-position slag discharge port. This technical solution has the function of preventing the top of the material from crusting, and can also enable the bottom sludge to be automatically discharged, but the above technical solution cannot crush the fermentation raw materials such as feces or straw, and the particles therein are too large, which affects its fermentation efficiency. At the same time, it cannot stir the fermentation raw materials at different positions, and it is inconvenient to turn the fermentation raw materials. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an anaerobic fermentation tank, which solves the problem that the existing fermentation tank cannot crush fermentation raw materials such as feces or straw, the particles therein are too large, affecting the fermentation efficiency, and at the same time it cannot stir the fermentation raw materials at different positions, making it inconvenient to turn the fermentation raw materials.

[0005] In order to solve the above technical problems, the utility model provides an anaerobic fermentation tank, comprising a tank body, a tank top arranged on the tank body and a filling port arranged on the tank top, a flow guide cover is arranged in the filling port, an opposing crushing mechanism for crushing fermentation raw materials is arranged in the flow guide cover, the opposing crushing mechanism comprises a first roller and a second roller, the first roller and the second roller are symmetrically arranged in the flow guide cover for rotation, a first crushing tooth is arranged on the first roller, and a second crushing tooth is arranged on the second roller, the first crushing tooth and the second crushing tooth are arranged alternately, and a transmission structure for driving the first roller and the second roller to rotate in opposite directions is also arranged on the flow guide cover, wherein the flow guide cover is connected to a cross frame, and a movable stirring mechanism is arranged on the cross frame.

[0006] Furthermore, the transmission structure includes a transmission box, which is arranged on the air deflector, the first roller and the second roller are respectively rotatably connected to the air deflector, a first gear is arranged on the first roller, the first gear is meshed with the second gear, and the second gear is arranged on the second roller, and the first roller and the second roller can be driven to rotate in opposite directions through the transmission of the first gear and the second gear.

[0007] Furthermore, the mobile stirring mechanism includes a hydraulic cylinder, which is arranged in the tank body, a carrier is arranged on the piston rod of the hydraulic cylinder, a stirring motor is arranged on the carrier, a stirring shaft is arranged at one end of the output shaft of the stirring motor, and a plurality of stirring blades are arranged on the stirring shaft. The position of the stirring shaft can be adjusted by extending and retracting the hydraulic cylinder, thereby stirring the fermentation raw materials in different areas.

[0008] Furthermore, the stirring shaft is rotatably arranged in a positioning sleeve, the positioning sleeve is movably arranged in a guide opening, and the guide opening is arranged on a horizontal frame, thereby improving the stability of the stirring shaft during rotation.

[0009] Furthermore, a limiting slider is provided on the outer surface of the positioning sleeve, one end of which is slidably arranged in a limiting sliding groove, and the limiting sliding groove is arranged on one side of the guide opening, thereby improving the stability of the positioning sleeve when moving.

[0010] Furthermore, a side protective ladder is provided on the outer surface of the tank body to facilitate personnel to climb to the top of the tank.

[0011] Furthermore, an annular guardrail is provided on the tank top to facilitate personnel to inspect and repair the tank top, and an inner guardrail is provided on the injection port to facilitate personnel to inspect and repair the injection port.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model can crush the input fermentation raw materials during the fermentation raw material input process, crush the large-particle fermentation raw materials, and improve the subsequent fermentation efficiency of the fermentation raw materials.

[0014] 2. The utility model can stir the fermentation raw materials in different areas of the tank body and perform material turning operations on them, which can shorten the fermentation cycle of the fermentation raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of the tank body in the utility model;

[0017] Figure 3 for Figure 2 A partial enlarged structural diagram of the middle A part;

[0018] Figure 4 for Figure 2 A schematic diagram of the partial enlarged structure of the middle B part;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the cross frame in the utility model from top view;

[0020] Figure 6 for Figure 5 A schematic diagram of the partially enlarged structure of the middle C part;

[0021] In the figure: 1, tank body, 2, tank top, 3, filling port, 4, annular guardrail, 5, side guard ladder, 6, deflector, 7, cross frame, 11, stirring shaft, 12, stirring blade, 13, hydraulic cylinder, 14, stirring motor, 15, carrier, 16, limit slide groove, 17, guide port, 18, positioning sleeve, 19, limit slider, 61, first roller, 62, first crushing tooth, 63, second crushing tooth, 64, second roller, 65, first gear, 66, drive motor, 67, transmission box, 68, second gear. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings in the embodiments of the utility model. All directional indications in the utility model (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 as well as Figure 6 An anaerobic fermentation tank comprises a tank body 1, a tank top 2 arranged on the tank body 1 and a material injection port 3 arranged on the tank top 2, a flow guide hood 6 is arranged in the material injection port 3, an opposite grinding mechanism for grinding fermentation raw materials is arranged in the flow guide hood 6, the opposite grinding mechanism comprises a first roller 61 and a second roller 64, the first roller 61 and the second roller 64 are symmetrically rotated and arranged in the flow guide 6, a first grinding tooth 62 is arranged on the first roller 61, and a second grinding tooth 63 is arranged on the second roller 64, the first grinding tooth 62 and the second grinding tooth 63 are staggered, and a transmission structure for driving the first roller 61 and the second roller 64 to rotate in opposite directions is also arranged on the flow guide 6, wherein the flow guide hood 6 is connected to a cross frame 7, and a movable stirring mechanism is arranged on the cross frame 7.

[0024] The transmission structure includes a transmission box 67, which is arranged on the air deflector 6. The first roller 61 and the second roller 64 are respectively rotatably connected to the air deflector 6. The first gear 65 is arranged on the first roller 61, and the first gear 65 is meshed with the second gear 68. The second gear 68 is arranged on the second roller 64. One end of the first roller 61 is connected to the driving shaft of the driving motor 66, and can drive the first roller 61 and the second roller 64 to rotate in opposite directions through the transmission of the first gear 65 and the second gear 68.

[0025] First, the fermentation raw materials are injected into the guide cover 6 through the main material port, and then the first roller 61 is driven by the driving motor 66 to rotate, the first roller 61 drives the first gear 65 to rotate, the first gear 65 drives the second gear 68 to rotate, the second gear 68 drives the second roller 64 to rotate, the first roller 61 and the second roller 64 rotate in opposite directions, the first roller 61 drives the first crushing teeth 62 to rotate, the second roller 64 drives the second crushing teeth 63 to rotate, and the fermentation raw materials are crushed by the rotation of the first crushing teeth 62 and the second crushing teeth 63.

[0026] As a specific embodiment of this application, please refer to 2. Figure 4 as well as Figure 5 The mobile stirring mechanism includes a hydraulic cylinder 13, which is arranged in the tank body 1. A platform 15 is arranged on the piston rod of the hydraulic cylinder 13, and a stirring motor 14 is arranged on the platform 15. A stirring shaft 11 is arranged at one end of the output shaft of the stirring motor 14, and a plurality of stirring blades 12 are arranged on the stirring shaft 11. The position of the stirring shaft 11 can be adjusted by extending and retracting the hydraulic cylinder 13, so as to stir the fermentation raw materials in different areas.

[0027] The stirring shaft 11 is rotatably arranged in the positioning sleeve 18 , the positioning sleeve 18 is movably arranged in the guide opening 17 , and the guide opening 17 is arranged on the horizontal frame 7 , so as to improve the stability of the stirring shaft 11 when rotating.

[0028] A limiting slider 19 is also provided on the outer surface of the positioning sleeve 18 , one end of which is slidably disposed in the limiting slide groove 16 , and the limiting slide groove 16 is disposed on one side of the guide opening 17 , thereby improving the stability of the positioning sleeve 18 when moving.

[0029] During the fermentation process, the stirring shaft 11 is driven to rotate by the stirring motor 14, and the stirring shaft 11 drives multiple groups of stirring blades 12 to rotate. The hydraulic cylinder 13 is extended and retracted to drive the carrier 15 to move, and the carrier 15 drives the stirring motor 14 to move. At the same time, the carrier 15 drives the positioning sleeve 18 to move, and the movement of the positioning sleeve 18 drives the stirring shaft 11 to move. Through the movement of the stirring shaft 11, the fermentation raw materials in different areas can be stirred and turned over.

[0030] Furthermore, a side protective ladder 5 is provided on the outer surface of the tank body 1 to facilitate personnel to climb onto the tank top 2 .

[0031] Furthermore, an annular guardrail 4 is provided on the tank top 2 to facilitate personnel to inspect and repair the tank top 2 , and an inner guardrail is provided on the injection port 3 to facilitate personnel to inspect and repair the injection port 3 .

[0032] Although the 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. An anaerobic fermentation tank, comprising a tank body (1), a tank top (2) arranged on the tank body (1), and a material injection port (3) arranged on the tank top (2), characterized in that: A flow guide hood (6) is arranged in the injection port (3), and an opposing grinding mechanism for grinding the fermentation raw materials is arranged in the flow guide hood (6), and the opposing grinding mechanism includes a first roller (61) and a second roller (64), and the first roller (61) and the second roller (64) are symmetrically rotated and arranged in the flow guide hood (6), and the first grinding teeth (62) are arranged on the first roller (61), and the second grinding teeth (63) are arranged on the second roller (64), and the first grinding teeth (62) and the second grinding teeth (63) are arranged in an alternating manner. The flow guide hood (6) is also provided with a transmission structure for driving the first roller (61) and the second roller (64) to rotate in opposite directions, wherein the flow guide hood (6) is connected to a cross frame (7), and a movable stirring mechanism is arranged on the cross frame (7).

2. An anaerobic fermentation tank according to claim 1, characterized in that: The transmission structure comprises a transmission box (67), wherein the transmission box (67) is arranged on the air deflector (6), the first rotating roller (61) and the second rotating roller (64) are respectively rotatably connected to the air deflector (6), the first rotating roller (61) is provided with a first gear (65), the first gear (65) is meshed with a second gear (68), and the second gear (68) is arranged on the second rotating roller (64).

3. The anaerobic fermentation tank according to claim 1, characterized in that: The mobile stirring mechanism comprises a hydraulic cylinder (13), the hydraulic cylinder (13) is arranged in the tank body (1), a carrier (15) is arranged on the piston rod of the hydraulic cylinder (13), a stirring motor (14) is arranged on the carrier (15), a stirring shaft (11) is arranged at one end of the output shaft of the stirring motor (14), and a plurality of stirring blades (12) are arranged on the stirring shaft (11).

4. An anaerobic fermentation tank according to claim 3, characterized in that: The stirring shaft (11) is rotatably arranged in a positioning sleeve (18), the positioning sleeve (18) is movably arranged in a guide opening (17), and the guide opening (17) is arranged on a horizontal frame (7).

5. An anaerobic fermentation tank according to claim 4, characterized in that: A limiting slide block (19) is also provided on the outer surface of the positioning sleeve (18), one end of the limiting slide block (19) is slidably disposed in a limiting slide groove (16), and the limiting slide groove (16) is disposed on one side of the guide opening (17).

6. The anaerobic fermentation tank according to claim 1, characterized in that: A side protective ladder (5) is also provided on the outer surface of the tank body (1).

7. An anaerobic fermentation tank according to any one of claims 1 to 6, characterized in that: An annular guardrail (4) is also provided on the tank top (2), and an inner guardrail is also provided on the injection port (3).

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