Anaerobic fermentation tank with internal circulation structure

Abstract

The utility model relates to the technical field of anaerobic fermentation, in particular to an anaerobic fermentation tank with an internal circulation structure, which comprises a processing tank, a tank cover and a water pumping device, the tank cover is placed on the surface of the processing tank, the water pumping device is arranged on the surface of the tank cover and comprises two cylinders, and the two cylinders are fixedly connected with the surface of the tank cover. The two air cylinders are symmetrically arranged, the driving ends of the two air cylinders are fixedly connected with an adjusting plate, the surface of the adjusting plate is fixedly connected with a supporting frame, the bottom end of the supporting frame is in threaded connection with a supporting block, a closed disc is placed on the surface of the supporting block and is in sliding connection with the surface of the supporting frame, and the surface of the processing tank is fixedly connected with a water conveying pipe. According to the fermentation tank, the water pumping device is arranged, so that the fermentation efficiency of wastewater is effectively improved, and when the wastewater is fermented, the water pumping device is started, so that the condition that the wastewater is layered after being placed for a period of time is avoided, the practicability of the water pumping device is improved, the assistance of the water pumping device is improved, and the fermentation efficiency of the fermentation tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anaerobic fermentation, in particular to an anaerobic fermentation tank with an internal circulation structure. Background Art

[0002] An anaerobic fermentation tank is a device that uses anaerobic or micro-aerobic conditions to promote certain chemical reactions. It belongs to the concept in the field of microbiology and is specifically designed to support the anaerobic fermentation process. Anaerobic fermentation is a biochemical process in which microorganisms, in the absence of oxygen, through their own metabolic activities, convert organic substances into more stable compounds such as carbon dioxide, methane, and water. This process is very important in many industrial and household applications. For example, in the food fermentation processes such as making pickles and yogurt, as well as in sewage treatment and bioenergy production. The structure of an anaerobic fermentation tank usually includes a sealed cylinder body, which is equipped with stirring paddles, stirring blades, and flow guiding plates inside to ensure that the materials in the tank can be fully mixed. The design of the feed pipe and the discharge pipe facilitates the entry of materials into the mixing chamber for mixing and then discharging. To achieve anaerobic conditions, the anaerobic fermentation tank is equipped with an inert gas generation system, which includes an intake pipeline and an exhaust pipeline. By introducing purified compressed air or pure nitrogen and equipped with a flow meter to monitor the flow rate and flow volume of the gas, the oxygen in the air is excluded to maintain an anaerobic or micro-aerobic state in the tank environment. The application scope of the anaerobic fermentation tank is extensive. It is not only applicable to sludge anaerobic digestion tests, window garbage fermentation digestion tests, and methane biogas research in environmental science and environmental engineering laboratories of scientific research institutions and enterprises, but also used to treat high-concentration organic wastewater, such as human and livestock manure, kitchen waste, straw, weeds, etc. Through the anaerobic fermentation process, combustible mixed gases such as hydrogen and methane are generated. In addition, the anaerobic fermentation tank also plays an important role in sewage treatment and bioenergy production. Through the metabolic activities of microorganisms, organic substances are converted into biogas and organic fertilizers to achieve wastewater treatment and resource recovery and utilization. With the development of society, when materials need to be fermented, an anaerobic fermentation tank is used.

[0003] Existing equipment such as CN202320044109.X, an anaerobic fermentation tank with an internal circulation structure, belongs to the field of biological fermentation tanks, and aims to solve the problem that the existing anaerobic fermentation tank cannot conveniently and stably circulate and transport the internal raw materials. It includes a fermentation tank shell, a flange is installed and fixed at the top of the fermentation tank shell, a sealing cover is bolted to the flange, a protective frame is fixedly connected to the top surface of the sealing cover, and a servo motor is installed and fixed inside the protective frame. In this application, the servo motor can drive the screw rod to rotate stably in the conveying cylinder, so as to stably transport the fermentation raw materials at the bottom inside the fermentation tank shell upward, and use each feeding pipe to transport the fermentation raw materials at the bottom layer to the top layer, and so on in a cycle, so that the raw materials are fully mixed and contacted with anaerobic bacteria, avoiding precipitation and stratification of the raw materials, resulting in slow fermentation, and then ensuring the stability of the subsequent fermentation of the raw materials and the production of biogas.

[0004] When the wastewater needs to be fermented, the wastewater is injected into the fermentation tank so that the fermentation tank ferments the wastewater to produce biogas. However, during the fermentation process of the wastewater, the wastewater will be stratified, and the sundries on the top layer will form a covering effect, resulting in the inability to smoothly produce biogas during the fermentation process of the wastewater, and then leading to the problem of reduced fermentation efficiency of the wastewater. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcoming of reduced fermentation efficiency of wastewater in the prior art, and to propose an anaerobic fermentation tank with an internal circulation structure.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solution: An anaerobic fermentation tank with an internal circulation structure, including a processing tank, a tank cover and a water pumping device. The tank cover is placed on the surface of the processing tank, and the water pumping device is arranged on the surface of the tank cover. The water pumping device includes a cylinder. The two cylinders are fixedly connected to the surface of the tank cover, the two cylinders are symmetrically arranged, the driving ends of the two cylinders are fixedly connected with an adjusting plate, a support frame is fixedly connected to the surface of the adjusting plate, a support block is threadedly connected to the bottom end of the support frame, a closing plate is placed on the surface of the support block, and the closing plate is slidably connected to the surface of the support frame. A water delivery pipe is fixedly connected to the surface of the processing tank, the support frame is slidably connected to the surface of the water delivery pipe, the support block is slidably connected to the surface of the water delivery pipe, a rubber ring is fixedly connected to the surface of the support frame, the rubber ring is slidably connected to the surface of the water delivery pipe, a leak-proof cover is fixedly connected to the top end of the water delivery pipe, the support frame is slidably connected to the surface of the leak-proof cover, a rubber cover is placed on the inner surface of the water delivery pipe, a hollow sliding rod is fixedly connected to the surface of the rubber cover, and the hollow sliding rod is slidably connected to the surface of the water delivery pipe. The rubber cover can cooperate with the water delivery pipe and the hollow sliding rod to achieve the purpose of preventing the reverse flow of water.

[0007] Preferably, a filter screen is fixedly connected to the bottom end of the water delivery pipe. A plurality of water permeable openings are formed on the surface of the filter screen. The filter screen can cooperate with the water delivery pipe to achieve the purpose of filtering debris.

[0008] Preferably, a convenience device is provided on the surface of the processing tank. The convenience device includes a support bar fixedly connected to the surface of the processing tank. A rotating rod is rotatably connected to the surface of the support bar. A threaded cap is threadedly connected to the surface of the rotating rod. The support bar can cooperate with the processing tank and the rotating rod to achieve the purpose of supporting the rotating rod.

[0009] Preferably, an anti-slip rod is fixedly connected to the surface of the processing tank. The tank cover is sleeved on the surface of the anti-slip rod. A sleeve strip is sleeved on the surface of the anti-slip rod. The sleeve strip is placed on the surface of the tank cover. The anti-slip rod can cooperate with the processing tank and the tank cover to achieve the purpose of restricting the tank cover.

[0010] Preferably, a clamping plate is fixedly connected to the surface of the sleeve strip. The rotating rod is inserted into the surface of the clamping plate. The clamping plate can cooperate with the sleeve strip to achieve the purpose of storing the rotating rod.

[0011] Preferably, an anti-rotation ring is sleeved on the surface of the rotating rod. The anti-rotation ring is placed on the surface of the clamping plate. The threaded cap is placed on the surface of the anti-rotation ring. The anti-rotation ring can cooperate with the rotating rod and the threaded cap to achieve the purpose of restricting the anti-rotation rod.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, by setting the water pumping device, when the wastewater ferments, the fermentation efficiency of the wastewater is improved. When using the device, the device mixes microorganisms with the wastewater to achieve the purpose of fermenting the wastewater. Start the air cylinder, the air cylinder pushes the adjusting plate, the adjusting plate drives the support frame, the support frame drives the supporting block and the closing plate. When the closing plate slides repeatedly in the water delivery pipe, the atmospheric pressure presses the wastewater into the water delivery pipe. When the wastewater rises to the specified height, the wastewater will flow out from both sides of the water delivery pipe. By setting the water pumping device, the fermentation efficiency of the wastewater is effectively improved. When the wastewater ferments, start the water pumping device, which avoids the stratification of the wastewater after being placed for a period of time, improves the practicability of the water pumping device, improves the auxiliary performance of the water pumping device, and improves the fermentation efficiency of the fermentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of an anaerobic fermentation tank with an internal circulation structure proposed by the present utility model;

[0015] Figure 2 is a structural schematic diagram of the water pumping device of an anaerobic fermentation tank with an internal circulation structure proposed by the present utility model;

[0016] Figure 3 The present utility model provides an anaerobic fermentation tank with an internal circulation structure Figure 2 Schematic structural diagram of the structure at position A in

[0017] Figure 4 Schematic structural diagram of the convenient device of an anaerobic fermentation tank with an internal circulation structure provided by the present utility model;

[0018] Figure 5 The present utility model provides an anaerobic fermentation tank with an internal circulation structure Figure 4 Schematic structural diagram of the structure at position B in

[0019] Legend description:

[0020] 1. Processing tank; 2. Tank cover; 3. Water pumping device; 31. Cylinder; 32. Adjusting plate; 33. Leak-proof cover; 34. Water delivery pipe; 35. Support frame; 36. Closed disc; 37. Rubber ring; 38. Support block; 39. Rubber cover; 310. Hollow sliding rod; 311. Filter screen; 4. Convenient device; 41. Anti-slip rod; 42. Sleeve strip; 43. Threaded nut; 44. Anti-rotation ring; 45. Clamping plate; 46. Rotating rod; 47. Support strip. Specific implementation manner

[0021] Please refer to Figures 1-5 , the present utility model provides a technical solution: an anaerobic fermentation tank with an internal circulation structure, including a processing tank 1, a tank cover 2 and a water pumping device 3, the tank cover 2 is placed on the surface of the processing tank 1, and the water pumping device 3 is arranged on the surface of the tank cover 2.

[0022] The following specifically describes the specific settings and functions of its water pumping device 3 and convenient device 4.

[0023] In this implementation: the water pumping device 3 includes a cylinder 31, two cylinders 31 are fixedly connected to the surface of the tank cover 2, the two cylinders 31 are symmetrically arranged, the driving ends of the two cylinders 31 are fixedly connected with an adjusting plate 32, the surface of the adjusting plate 32 is fixedly connected with a support frame 35, the bottom end of the support frame 35 is threadedly connected with a support block 38, the surface of the support block 38 is placed with a closed disc 36, the closed disc 36 is slidably connected with the surface of the support frame 35, the surface of the processing tank 1 is fixedly connected with a water delivery pipe 34, the support frame 35 is slidably connected with the surface of the water delivery pipe 34, the support block 38 is slidably connected with the surface of the water delivery pipe 34, the surface of the support frame 35 is fixedly connected with a rubber ring 37, the rubber ring 37 is slidably connected with the surface of the water delivery pipe 34, the top end of the water delivery pipe 34 is fixedly connected with a leak-proof cover 33, and the support frame 35 is slidably connected with the surface of the leak-proof cover 33.

[0024] Specifically, a rubber cover 39 is placed on the inner surface of the water delivery pipe 34. A hollow sliding rod 310 is fixedly connected to the surface of the rubber cover 39. The hollow sliding rod 310 is slidably connected to the surface of the water delivery pipe 34. The rubber cover 39 can cooperate with the water delivery pipe 34 and the hollow sliding rod 310 to prevent the backflow of water.

[0025] Specifically, a filter screen 311 is fixedly connected to the bottom end of the water delivery pipe 34. A plurality of water permeable openings are formed on the surface of the filter screen 311.

[0026] In this embodiment: The filter screen 311 can cooperate with the water delivery pipe 34 to filter out debris.

[0027] In this embodiment: A convenience device 4 is provided on the surface of the processing tank 1. The convenience device 4 includes a support bar 47. The support bar 47 is fixedly connected to the surface of the processing tank 1. A rotating rod 46 is rotatably connected to the surface of the support bar 47. A threaded cap 43 is threadedly connected to the surface of the rotating rod 46. The support bar 47 can cooperate with the processing tank 1 and the rotating rod 46 to support the rotating rod 46.

[0028] Specifically, an anti-slip rod 41 is fixedly connected to the surface of the processing tank 1. The tank cover 2 is sleeved on the surface of the anti-slip rod 41. A sleeve strip 42 is sleeved on the surface of the anti-slip rod 41. The sleeve strip 42 is placed on the surface of the tank cover 2.

[0029] In this embodiment: The anti-slip rod 41 can cooperate with the processing tank 1 and the tank cover 2 to limit the movement of the tank cover 2.

[0030] Specifically, a clamping plate 45 is fixedly connected to the surface of the sleeve strip 42. The rotating rod 46 is inserted into the surface of the clamping plate 45. The clamping plate 45 can cooperate with the sleeve strip 42 to store the rotating rod 46.

[0031] Specifically, an anti-rotation ring 44 is sleeved on the surface of the rotating rod 46. The anti-rotation ring 44 is placed on the surface of the clamping plate 45. The threaded cap 43 is placed on the surface of the anti-rotation ring 44.

[0032] In this embodiment: The anti-rotation ring 44 can cooperate with the rotating rod 46 and the threaded cap 43 to limit the rotation of the rod.

[0033] Working principle: By setting up the water pumping device 3, when the wastewater ferments, the fermentation efficiency of the wastewater is improved. Using the device, the device mixes microorganisms with the wastewater to achieve the purpose of fermenting the wastewater. Start the cylinder 31, the cylinder 31 pushes the adjusting plate 32, the adjusting plate 32 drives the support frame 35, the support frame 35 drives the supporting block 38 and the closing plate 36. When the closing plate 36 slides repeatedly in the water delivery pipe 34, the atmospheric pressure presses the wastewater into the water delivery pipe 34. When the wastewater rises to the specified height, the wastewater will flow out from both sides of the water delivery pipe 34. By setting up the water pumping device 3, the fermentation efficiency of the wastewater is effectively improved. When the wastewater ferments, start the water pumping device 3, which avoids the stratification of the wastewater after being placed for a period of time, improves the practicability of the water pumping device 3, improves the auxiliary performance of the water pumping device 3, and improves the fermentation efficiency of the fermentation tank. In addition, by setting up the convenience device 4, when the worker needs to dredge the water delivery pipe 34, it is convenient for the worker to dredge the blocked water delivery pipe 34. Using the device, the device mixes microorganisms with the wastewater to achieve the purpose of fermenting the wastewater. Rotate the threaded cap 43, the threaded cap 43 loses the restriction on the clamping plate 45 and the anti-rotation ring 44, push the anti-rotation ring 44 upward. When the anti-rotation ring 44 slides to the specified position, rotate the rotating rod 46, the rotating rod 46 disengages from the clamping plate 45, remove the sleeve bar 42 from the anti-slip rod 41, and remove the processing tank 1 from the anti-slip rod 41. By setting up the convenience device 4, it is effectively convenient for the worker to dredge the blocked water delivery pipe 34. When the worker needs to dredge the water delivery pipe 34, adjust the convenience device 4, which avoids the worker needing to use auxiliary tools to disassemble multiple threaded caps 43, improves the practicability of the convenience device 4, improves the auxiliary performance of the convenience device 4, and improves the convenience for the worker to dredge the water delivery pipe 34.

Claims

1. An anaerobic fermentation tank with an internal circulation structure, comprising a processing tank (1), a tank cover (2) and a water pumping device (3), characterized in that: The said can lid (2) is placed on the surface of the processing can (1), the water pumping device (3) is arranged on the surface of the can lid (2), the water pumping device (3) includes a cylinder (31), two of the cylinders (31) are fixedly connected to the surface of the can lid (2), the two cylinders (31) are symmetrically arranged, a regulating plate (32) is fixedly connected to the driving ends of the two cylinders (31), a support frame (35) is fixedly connected to the surface of the regulating plate (32), a supporting block (38) is threadedly connected to the bottom end of the support frame (35), a closing disc (36) is placed on the surface of the supporting block (38), the closing disc (36) is slidably connected to the surface of the support frame (35), a water delivery pipe (34) is fixedly connected to the surface of the processing can (1), the support frame (35) is slidably connected to the surface of the water delivery pipe (34), the supporting block (38) is slidably connected to the surface of the water delivery pipe (34), a rubber ring (37) is fixedly connected to the surface of the support frame (35), the rubber ring (37) is slidably connected to the surface of the water delivery pipe (34), a leak-proof cover (33) is fixedly connected to the top end of the water delivery pipe (34), and the support frame (35) is slidably connected to the surface of the leak-proof cover (33).

2. The anaerobic fermentation tank with an internal circulation structure according to claim 1, characterized in that: A rubber cover (39) is placed on the inner surface of the water delivery pipe (34), and a hollow sliding rod (310) is fixedly connected to the surface of the rubber cover (39), and the hollow sliding rod (310) is slidably connected to the surface of the water delivery pipe (34).

3. The anaerobic fermentation tank with an internal circulation structure according to claim 1, characterized in that: A filter screen (311) is fixedly connected to the bottom end of the water delivery pipe (34), and a plurality of water permeable openings are formed on the surface of the filter screen (311).

4. An anaerobic fermentation tank with an internal circulation structure according to claim 1, characterized in that: A convenience device (4) is arranged on the surface of the processing can (1), the convenience device (4) includes a support bar (47), the support bar (47) is fixedly connected to the surface of the processing can (1), a rotating rod (46) is rotatably connected to the surface of the support bar (47), and a threaded cap (43) is threadedly connected to the surface of the rotating rod (46).

5. The anaerobic fermentation tank with an internal circulation structure according to claim 4, characterized in that: An anti-slip rod (41) is fixedly connected to the surface of the processing can (1), the can lid (2) is sleeved on the surface of the anti-slip rod (41), a sleeve strip (42) is sleeved and connected to the surface of the anti-slip rod (41), and the sleeve strip (42) is placed on the surface of the can lid (2).

6. An anaerobic fermentation tank with an internal circulation structure according to claim 5, characterized in that: A clamping plate (45) is fixedly connected to the surface of the sleeve strip (42), and the rotating rod (46) is inserted into the surface of the clamping plate (45).

7. An anaerobic fermentation tank with an internal circulation structure according to claim 5, characterized in that: An anti-rotation ring (44) is sleeved and connected to the surface of the rotating rod (46), the anti-rotation ring (44) is placed on the surface of the clamping plate (45), and the threaded cap (43) is placed on the surface of the anti-rotation ring (44).

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