CN221644921U - A circulating biogas fermentation tank - Google Patents

Abstract

The utility model belongs to the technical field of biogas fermentation tanks, and discloses a circulating biogas fermentation tank which comprises a fermentation tank, wherein bases are fixedly connected to two ends of the bottom of the fermentation tank, a control board is fixedly connected to the side end of the fermentation tank, a feed inlet is formed in the side end of the fermentation tank, a discharge outlet is formed in the other side end of the fermentation tank, and an air pump is fixedly connected to the top end of the fermentation tank.

Description

A circulating biogas fermentation tank

Technical Field

The utility model belongs to the technical field of biogas fermentation tanks, and in particular relates to a circulating biogas fermentation tank.

Background Art

Biogas is a combustible gas produced by the fermentation of organic matter under anaerobic conditions by microorganisms. Human and animal feces, straw, sewage and other organic matter are fermented under anaerobic conditions in a closed biogas digester, that is, they are decomposed and transformed by a wide variety of biogas fermentation microorganisms to produce biogas. In addition to direct combustion for cooking, drying agricultural and sideline products, heating, lighting and gas welding, biogas can also be used as fuel for internal combustion engines and for the production of chemical raw materials such as methanol, formalin and carbon tetrachloride. The liquid and sediment discharged after fermentation by the biogas device contain rich nutrients and can be used as fertilizer and feed.

Nowadays, the structure of most biogas fermentation tanks is relatively simple. Basically, some waste materials are poured into the fermentation tank and allowed to ferment on their own for a long time. However, the waste materials in the fermentation tank are not stirred, and the waste materials at the bottom will ferment unevenly. In addition, the biogas in the filtered waste liquid cannot be completely fermented, resulting in a low utilization rate of the waste liquid and a certain amount of resource waste.

Utility Model Content

The utility model aims to provide a circulating biogas fermentation tank to solve the problems in the above-mentioned background technology that the waste in the fermentation tank is not stirred, the waste at the bottom is fermented unevenly, and the utilization rate of the filtered waste liquid is low, resulting in a certain waste of resources.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circulating biogas fermentation tank, comprising a fermentation tank, both ends of the bottom of the fermentation tank are fixedly connected to a base, the side end of the fermentation tank is fixedly connected to a control panel, the side end of the fermentation tank is provided with a feed inlet, the other side end of the fermentation tank is provided with a discharge port, the top of the fermentation tank is fixedly connected to an air pump, the side end of the air pump is fixedly connected to an air outlet pipe, and the other end of the air outlet pipe is fixedly connected to the top of the fermentation tank.

Preferably, the top of the fermentation tank is fixedly connected to a motor box, a rotating motor is fixedly connected inside the motor box, an output end of the rotating motor is fixedly connected to a rotating shaft, the other end of the rotating shaft passes through the top of the fermentation tank, a fixing ring is sleeved on the rotating shaft, and a stirring blade is fixedly connected to the outer surface of the fixing ring.

Preferably, a filter plate is fixedly connected to the interior of the fermentation tank, a water tank is fixedly connected to the side end of the fermentation tank, a tank opening is opened at the top of the water tank, a fixed plate is fixedly connected to the side end of the fermentation tank, a water pump is fixedly connected to the upper end of the fixed plate, a water pump is fixedly connected to the bottom of the water pump, the other end of the water pump is fixedly connected to the side end of the fermentation tank, a delivery pipe is fixedly connected to the side end of the water pump, the other end of the delivery pipe is fixedly connected to the side end of the water tank, the other side end of the water tank is fixedly connected to a circulation pipe, and the other end of the circulation pipe passes through the side wall of the fermentation tank.

Preferably, a cleaning bin is fixedly connected to the side end of the fermentation tank, a telescopic rod is fixedly connected to the inner side wall of the cleaning bin, and a cleaning plate is fixedly connected to the output end of the telescopic rod.

Preferably, the water pumping pipe and the delivery pipe are fixedly connected to the corners with connecting pipes, and the opening at the top of the fermentation tank is fixedly connected to a sealing gasket.

Preferably, a guide plate is fixedly connected to the inner wall of the fermentation tank, and a glass window is provided at the side end of the fermentation tank.

Compared with the prior art, the beneficial effects of the utility model are:

(1) The utility model is provided with a rotating motor, a rotating shaft and a stirring blade, etc., and the waste material to be fermented is poured into the fermentation tank through the feed port, and then falls along the guide plate to the vicinity of the stirring blade. When the fermentation time of the waste material in the fermentation tank is too long, in order to completely ferment the bottom of the waste material, the control panel is first operated to start the rotation of the rotating motor, and the rotating motor drives the rotating shaft to rotate, and the rotating shaft drives the stirring blade on the outer surface of the fixed ring to rotate. The high-speed rotating stirring blade can turn up the waste material at the bottom of the fermentation tank, so that the waste material can be completely fermented.

(2) The utility model is provided with a water pump, a water tank and a circulation pipe. When there is too much waste liquid filtered at the bottom of the fermentation tank, and the biogas in the waste liquid may not be completely fermented, in order to avoid waste, the control panel is first operated to start the water pump, and the waste liquid in the fermentation tank is pumped into the water tank through the pumping pipe and the delivery pipe, and then the waste liquid in the water tank is re-injected into the fermentation tank through the circulation pipe for re-fermentation. In this way, the utilization rate of the waste liquid can be greatly improved and a certain amount of resource waste can be avoided.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a front view of the utility model;

Fig. 3 is a side view of the utility model;

In the figure: 1. fermentation tank; 2. base; 3. telescopic rod; 4. cleaning chamber; 5. feed port; 6. guide plate; 7. cleaning plate; 8. filter plate; 9. stirring blade; 10. rotating shaft; 11. fixing ring; 12. circulation pipe; 13. motor box; 14. rotating motor; 15. air outlet pipe; 16. vacuum pump; 17. box mouth; 18. water tank; 19. conveying pipe; 20. water pump; 21. fixing plate; 22. discharge port; 23. water pump; 24. connecting pipe; 25. glass window; 26. control panel.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-2. The utility model provides the following technical solutions: a circulating biogas fermentation tank, including a fermentation tank 1, both ends of the bottom of the fermentation tank 1 are fixedly connected to a base 2, the side end of the fermentation tank 1 is fixedly connected to a control panel 26, the side end of the fermentation tank 1 is provided with a feed inlet 5, the other side end of the fermentation tank 1 is provided with a discharge port 22, the top of the fermentation tank 1 is fixedly connected to an air pump 16, the side end of the air pump 16 is fixedly connected to an air outlet pipe 15, the other end of the air outlet pipe 15 is fixedly connected to the top of the fermentation tank 1, the top of the fermentation tank 1 is fixedly connected to a motor box 13, a rotating motor 14 is fixedly connected in the motor box 13, the output end of the rotating motor 14 is fixedly connected to a rotating shaft 10, the other end of the rotating shaft 10 passes through the top of the fermentation tank 1, a fixing ring 11 is sleeved on the rotating shaft 10, and a stirring blade 9 is fixedly connected to the outer surface of the fixing ring 11.

Through the above technical solution:

The waste to be fermented is poured into the fermentation tank 1 through the feed port 5, and then falls along the guide plate 6 to the vicinity of the stirring blade 9. When the fermentation time of the waste in the fermentation tank 1 is too long, in order to completely ferment the bottom of the waste, the control panel 26 is first operated to start the rotation of the rotating motor 14, and the rotating motor 14 drives the rotating shaft 10 to rotate, and the rotating shaft 10 drives the stirring blade 9 on the outer surface of the fixed ring 11 to rotate. The high-speed rotating stirring blade 9 can turn up the waste at the bottom of the fermentation tank 1, so that the waste in the fermentation tank 1 can be completely fermented. When too much biogas is produced in the fermentation tank 1, the control panel 26 is operated to start the vacuum pump 16, and the biogas is extracted through the outlet pipe 15 for people to use.

Furthermore, a cleaning bin 4 is fixedly connected to the side end of the fermentation tank 1 , a telescopic rod 3 is fixedly connected to the inner wall of the cleaning bin 4 , and a cleaning plate 7 is fixedly connected to the output end of the telescopic rod 3 .

Specifically, a telescopic rod 3 and a cleaning plate 7 are provided to facilitate cleaning the sediment on the upper end of the filter plate 8 out of the fermentation tank 1. After the biogas is extracted by the vacuum pump 16, the discharge port 22 is opened, the output of the telescopic rod 3 is controlled, and the cleaning plate 7 is pushed, so that the sediment on the upper end of the filter plate 8 can be easily cleaned out of the fermentation tank 1 through the discharge port 22.

Furthermore, a glass window 25 is provided at the side end of the fermentation tank 1 , a guide plate 6 is fixedly connected to the inner side wall of the fermentation tank 1 , and a sealing gasket is fixedly connected to the opening at the top of the fermentation tank 1 .

Specifically, a guide plate 6 is provided to pour the waste near the stirring blade 9 and prevent the waste from entering the cleaning bin 4 when falling. A sealing gasket is provided to prevent the generated biogas from leaking through the gap at the top of the fermentation tank 1.

Please refer to Figures 1 and 3, a filter plate 8 is fixedly connected to the interior of the fermentation tank 1, a water tank 18 is fixedly connected to the side end of the fermentation tank 1, a box opening 17 is opened at the top of the water tank 18, a fixed plate 21 is fixedly connected to the side end of the fermentation tank 1, a water pump 20 is fixedly connected to the upper end of the fixed plate 21, a pumping pipe 23 is fixedly connected to the bottom of the water pump 20, the other end of the pumping pipe 23 is fixedly connected to the side end of the fermentation tank 1, a delivery pipe 19 is fixedly connected to the side end of the water tank 18, the other end of the delivery pipe 19 is fixedly connected to the side end of the water tank 18, the other side end of the water tank 18 is fixedly connected to the circulation pipe 12, and the other end of the circulation pipe 12 passes through the side wall of the fermentation tank 1.

Through the above technical solution:

When there is too much waste liquid filtered through the filter plate 8 inside the fermentation tank 1, and the biogas in the waste liquid may not be completely fermented, in order to avoid waste, first operate the control panel 26 to start the water pump 20, and pump the waste liquid inside the fermentation tank 1 into the water tank 18 through the pumping pipe 23 and the delivery pipe 19, and then inject the waste liquid in the water tank 18 back into the fermentation tank 1 through the circulation pipe 12 for re-fermentation, so that the utilization rate of the waste liquid can be greatly improved and a certain amount of resource waste can be avoided.

Furthermore, the corners of the pumping pipe 23 and the delivery pipe 19 are fixedly connected with connecting pipes 24.

Specifically, a connecting pipe 24 is provided to facilitate the disassembly and packaging of the water pumping pipe 23 and the delivery pipe 19 .

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 (6)

1. A circulating biogas fermentation tank, characterized in that it comprises a fermentation tank (1), both ends of the bottom of the fermentation tank (1) are fixedly connected to a base (2), the side end of the fermentation tank (1) is fixedly connected to a control panel (26), the side end of the fermentation tank (1) is provided with a feed inlet (5), the other side end of the fermentation tank (1) is provided with a discharge port (22), the top of the fermentation tank (1) is fixedly connected to an air pump (16), the side end of the air pump (16) is fixedly connected to an air outlet pipe (15), and the other end of the air outlet pipe (15) is fixedly connected to the top of the fermentation tank (1). 2. A circulating biogas fermentation tank according to claim 1, characterized in that: a motor box (13) is fixedly connected to the top of the fermentation tank (1), a rotating motor (14) is fixedly connected inside the motor box (13), an output end of the rotating motor (14) is fixedly connected to a rotating shaft (10), the other end of the rotating shaft (10) passes through the top of the fermentation tank (1), a fixing ring (11) is sleeved on the rotating shaft (10), and a stirring blade (9) is fixedly connected to the outer surface of the fixing ring (11). 3. A circulating biogas fermentation tank according to claim 2, characterized in that: a filter plate (8) is fixedly connected inside the fermentation tank (1), a water tank (18) is fixedly connected to the side end of the fermentation tank (1), a tank opening (17) is opened at the top of the water tank (18), a fixing plate (21) is fixedly connected to the side end of the fermentation tank (1), a water pump (20) is fixedly connected to the upper end of the fixing plate (21), a water pump (20) is fixedly connected to the bottom of the water pump (20), the other end of the water pump (23) is fixedly connected to the side end of the fermentation tank (1), the side end of the water pump (20) is fixedly connected to a delivery pipe (19), the other end of the delivery pipe (19) is fixedly connected to the side end of the water tank (18), the other side end of the water tank (18) is fixedly connected to a circulation pipe (12), and the other end of the circulation pipe (12) passes through the side wall of the fermentation tank (1). 4. A circulating biogas fermentation tank according to claim 3, characterized in that: the side end of the fermentation tank (1) is fixedly connected to a cleaning bin (4), the inner side wall of the cleaning bin (4) is fixedly connected to a telescopic rod (3), and the output end of the telescopic rod (3) is fixedly connected to a cleaning plate (7). 5. A circulating biogas fermentation tank according to claim 4, characterized in that: the corners of the water pumping pipe (23) and the conveying pipe (19) are fixedly connected with connecting pipes (24), and the opening at the top of the fermentation tank (1) is fixedly connected with a sealing gasket. 6. A circulating biogas fermentation tank according to claim 5, characterized in that a guide plate (6) is fixedly connected to the inner side wall of the fermentation tank (1), and a glass window (25) is provided at the side end of the fermentation tank (1).