CN219031973U

CN219031973U - Methane tank based on livestock manure fermentation

Info

Publication number: CN219031973U
Application number: CN202223153353.4U
Authority: CN
Inventors: 潘又德; 潘会
Original assignee: Jingshan Dejiaxing Animal Husbandry Co ltd
Current assignee: Jingshan Dejiaxing Animal Husbandry Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-05-16
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses a methane tank based on livestock manure fermentation, which comprises a closed fermentation tank, wherein a partition wall is arranged in the fermentation tank, the partition wall divides the fermentation tank into an aerobic fermentation tank and an anaerobic fermentation tank from outside to inside, and the aerobic fermentation tank and the anaerobic fermentation tank are communicated at the top position. The top of the fermentation tank is provided with a feed hopper which is communicated with the aerobic fermentation tank. The utility model relates to the technical field of livestock and poultry manure treatment, and discloses a methane tank based on livestock and poultry manure fermentation.

Description

Methane tank based on livestock manure fermentation

Technical Field

The utility model relates to the technical field of livestock and poultry manure treatment, in particular to a methane tank based on livestock and poultry manure fermentation.

Background

Biogas is a combustible gas produced by the fermentation of organic substances in an anaerobic environment under the conditions of certain temperature, humidity and pH value. A biogas digester is a facility for producing biogas.

The livestock and poultry raising excrement circulating fermentation biogas digester disclosed in Chinese patent CN 214360928U solves the problem that a large amount of heat energy in an aerobic fermentation tank is not effectively utilized and is wasted, effectively improves the environmental conditions around the fermentation tank, and simultaneously enables the livestock and poultry excrement to be fully fermented.

Through careful study and judgment of the above patent, I found that at least the following disadvantages are that firstly, the fermentation tank is almost completely separated from the anaerobic fermentation tank by the arrangement of the annular partition wall and the partition wall, so that how to quickly consume oxygen in the anaerobic fermentation tank becomes a difficult problem, secondly, the anaerobic fermentation tank is an annular tank body, and the turning roll for stirring feces can only stir at a fixed position in the anaerobic fermentation tank, obviously cannot cover the whole anaerobic fermentation tank, so that the stirring effect is to be improved, thirdly, the heat generated in the aerobic fermentation process is completely supplied to the anaerobic fermentation tank, and in the actual process, for example, when the temperature in summer is high, the anaerobic fermentation tank is obviously not required to be additionally heated, and the heat supply is rather counteracted, so that the problem is how to properly treat the heat generated in the aerobic process.

Based on this, my company proposed the present solution for solving the above-mentioned problems.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a methane tank based on livestock and poultry manure fermentation, which solves the problems that the existing livestock and poultry manure methane tank cannot consume oxygen rapidly, has low stirring efficiency and cannot properly treat heat.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: a methane tank based on livestock manure fermentation comprises a closed fermentation tank, wherein a partition wall is arranged in the fermentation tank, the partition wall divides the fermentation tank into an aerobic fermentation tank and an anaerobic fermentation tank from outside to inside, and the aerobic fermentation tank and the anaerobic fermentation tank are communicated at the top position.

A feed hopper is arranged at the top of the fermentation tank and is communicated with the aerobic fermentation tank;

a motor is arranged in the center of the top of the fermentation tank, the output end of the motor is coaxially fixed with a stirring shaft movably arranged at the top of the inner wall of the fermentation tank, a first stirring blade is arranged at the outer side of the stirring shaft, a second stirring blade is arranged at the inner side of the stirring shaft, and the first stirring blade and the second stirring blade are respectively positioned in the aerobic fermentation tank and the anaerobic fermentation tank;

a water storage cavity is arranged in the partition wall, a plurality of groups of heating water pipes are arranged in the anaerobic fermentation tank, water inlets of the heating water pipes are communicated with the water storage cavity, electromagnetic valves are arranged at the water inlets, a pump is arranged at the bottom of the fermentation tank, a water inlet pipe is arranged at the output end of the pump, and the tail end of the water inlet pipe is communicated with the top of the water storage cavity;

a thermometer is arranged at the bottom of the anaerobic fermentation tank;

the bottom of the water storage cavity is provided with a drain pipe extending to the outside of the fermentation tank;

a slurry pump is arranged on the inner side wall of the partition wall, a slurry suction pipe is arranged at the inlet of the slurry pump, and the slurry suction pipe extends to the bottom of the aerobic fermentation tank;

the top of the fermentation tank is provided with a biogas pipe, and the tail end of the biogas pipe is provided with a biogas collector.

Preferably, an exhaust pipe is arranged on the side wall of the fermentation tank, and a switch valve is arranged on the exhaust pipe.

Preferably, the heating water pipe is annular in shape, and the heating water pipe surrounds the outer side of the second stirring blade.

Preferably, the thickness of the side wall of the water storage cavity, which is close to the aerobic fermentation tank, is narrower than that of the side wall of the water storage cavity, which is close to the anaerobic fermentation tank.

Preferably, the first stirring vane and the second stirring vane are separated by a partition wall.

(III) beneficial effects

The utility model provides a methane tank based on livestock manure fermentation. The beneficial effects are as follows:

1. according to the biogas digester based on livestock manure fermentation, the semi-closed fermentation tank is arranged, so that the aerobic fermentation tank is locally communicated with the anaerobic fermentation tank, and oxygen in the anaerobic fermentation tank can be rapidly consumed.

2. Furthermore, through setting up the coaxial rabbling mechanism of surrounding type, can stir anaerobic fermentation tank and good oxygen fermentation tank in step to whole stirring zone does not have the dead angle, thereby has improved stirring efficiency, is favorable to fermentation quality.

3. Furthermore, by arranging the sandwich type heat absorbing mechanism, a large amount of heat generated in the aerobic fermentation process can be stored by taking cold water as a carrier, and the anaerobic fermentation tank is supplied with heat through a pipeline when needed, and the heat is transferred out in a hot water mode when not needed, so that the heat treatment is properly completed.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present utility model;

FIG. 2 is a partial sectional plan view of the present utility model;

fig. 3 is an enlarged view of a partial structure of the present utility model.

In the figure: 1. a fermentation tank; 2. partition walls; 3. an aerobic fermentation tank; 4. an anaerobic fermentation tank; 5. a feed hopper; 6. a motor; 7. a stirring shaft; 8. a first stirring blade; 9. a second stirring blade; 10. a water storage cavity; 11. a heating water pipe; 12. a pump machine; 13. a water inlet pipe; 14. a thermometer; 15. a drain pipe; 16. a slurry pump; 17. a pulp suction pipe; 18. biogas pipes; 19. a biogas collector; 20. and an exhaust pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-2, the present utility model provides a technical solution: a methane tank based on livestock manure fermentation comprises a closed fermentation tank 1, wherein a partition wall 2 is arranged in the fermentation tank 1, the partition wall 2 divides the fermentation tank 1 into an aerobic fermentation tank 3 and an anaerobic fermentation tank 4 from outside to inside, and the aerobic fermentation tank 3 and the anaerobic fermentation tank 4 are communicated at the top position.

As shown in FIG. 1, a feed hopper 5 is arranged at the top of the fermentation tank 1, and the feed hopper 5 is communicated with the aerobic fermentation tank 3.

As shown in fig. 1-2, a motor 6 is installed in the center of the top of the fermentation tank 1, the output end of the motor 6 is coaxially fixed with a stirring shaft 7 movably installed at the top of the inner wall of the fermentation tank 1, a first stirring blade 8 is installed at the outer side of the stirring shaft 7, a second stirring blade 9 is installed at the inner side of the stirring shaft, the first stirring blade 8 and the second stirring blade 9 are respectively positioned in the aerobic fermentation tank 3 and the anaerobic fermentation tank 4, and the first stirring blade 8 and the second stirring blade 9 are separated by a partition wall 2.

As shown in fig. 1-3, a water storage cavity 10 is arranged in the partition wall 2, one side wall of the water storage cavity 10, which is close to the aerobic fermentation tank 3, is narrower than the thickness of the side wall of the water storage cavity, which is close to the anaerobic fermentation tank 4, so that cold water can absorb heat quickly, heat is not conducted into the anaerobic fermentation tank 4 through the partition wall 2, heat energy is injected into the heating water pipe 11 in a hot water mode to heat the anaerobic fermentation tank 4, a plurality of groups of heating water pipes 11 are arranged in the anaerobic fermentation tank 4, the heating water pipes 11 are in a ring shape, the heating water pipes 11 encircle the outer sides of the second stirring blades 9 and do not interfere with each other, a water inlet of the heating water pipes 11 is communicated with the water storage cavity 10, an electromagnetic valve is arranged at the water inlet, a pump 12 is arranged at the bottom of the fermentation tank 1, a water inlet pipe 13 is arranged at the output end of the pump 12, and the tail end of the water inlet pipe 13 is communicated with the top of the water storage cavity 10.

As shown in fig. 3, a thermometer 14 is installed at the bottom of the anaerobic fermentation tank 4.

As shown in fig. 3, a drain pipe 15 (including an on-off valve) extending to the outside of the fermentation tank 1 is installed at the bottom of the water storage chamber 10.

As shown in fig. 3, a slurry pump 16 is mounted on the inner side wall of the partition wall 2, a slurry suction pipe 17 is mounted at the inlet of the slurry pump 16, the slurry suction pipe 17 extends to the bottom of the aerobic fermentation tank 3, and the slurry suction pipe 17 does not interfere with the first stirring blade 8.

As shown in fig. 1, a biogas pipe 18 is installed at the top of the fermentation tank 1, and a biogas collector 19 is installed at the end of the biogas pipe 18.

As shown in fig. 1, the side wall of the fermentation tank 1 is provided with an exhaust pipe 20, the exhaust pipe 20 is provided with a switch valve, and the exhaust pipe 20 is used for exhausting bacteria and bad smell gases generated in the aerobic fermentation process.

When the device is used, livestock manure is poured into the aerobic fermentation tank 3 in the fermentation tank 1 through the feed hopper 5, then the motor 6 is started to drive the stirring shaft 7 to rotate, and then the first stirring blade 8 is driven to stir the manure in the aerobic fermentation tank 3, so that the manure is uniformly fermented, in the process, because the aerobic fermentation tank 3 is communicated with the anaerobic fermentation tank 4, air can flow freely, and oxygen in the whole fermentation tank 1 is consumed.

The pump 12 is started in the water storage cavity 10 in advance, cold water is conveyed into the water storage cavity 10 through the water inlet pipe 13, heat generated in the aerobic fermentation tank 3 is absorbed by the cold water in the water storage cavity 10 in a heat conduction mode in the aerobic fermentation process, the water temperature rises, the temperature in the anaerobic fermentation tank 4 is detected through the thermometer 14, if the temperature is low, the electromagnetic valve on the heating water pipe 11 is opened, hot water is injected into the heating water pipe 11, the anaerobic fermentation tank 4 is heated, if the temperature reaches the requirement, the additional heating is not needed, and the hot water is directly discharged through the water outlet pipe 15 and is used for other purposes.

The slurry pump 16 is started, the fecal matter after aerobic fermentation is pumped into the anaerobic fermentation tank 4 through the slurry suction pipe 17, and then the fecal matter is uniformly stirred by the second stirring blade 9 to start anaerobic fermentation.

The finally formed biogas is stored in a biogas collector 19 through a biogas pipe 18.

In summary, the biogas digester based on livestock manure fermentation is provided with the semi-closed fermentation tank, so that the aerobic fermentation tank is partially communicated with the anaerobic fermentation tank, and oxygen in the anaerobic fermentation tank can be rapidly consumed; by arranging the surrounding coaxial stirring mechanism, the anaerobic fermentation tank and the aerobic fermentation tank can be synchronously stirred, and the whole stirring area has no dead angle, so that the stirring efficiency is improved, and the fermentation quality is facilitated; through setting up intermediate layer formula heat absorption mechanism, can store a large amount of heat that produce in the aerobic fermentation process with cold water as the carrier, supply heat to the anaerobic fermentation pond through the pipeline when needs to when not needing, with heat transfer away with hot water form, other usefulness in addition to the heat treatment has been properly accomplished.

It should be noted that, the electrical components appearing in this document are all connected to the external main controller and 220V mains supply, and the main controller may be a conventional known device for controlling a computer, etc., and the control principle, the internal structure, the control switching manner, etc. of the main controller are all conventional means in the prior art, and are directly cited herein, which are not repeated herein, and relational terms such as first and second, etc. are used solely to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A methane tank based on livestock manure fermentation is characterized in that: the device comprises a closed fermentation tank (1), wherein a partition wall (2) is arranged in the fermentation tank (1), the partition wall (2) divides the fermentation tank (1) into an aerobic fermentation tank (3) and an anaerobic fermentation tank (4) from outside to inside, and the aerobic fermentation tank (3) and the anaerobic fermentation tank (4) are communicated at the top position;

a feed hopper (5) is arranged at the top of the fermentation tank (1), and the feed hopper (5) is communicated with the aerobic fermentation tank (3);

a motor (6) is arranged in the center of the top of the fermentation tank (1), the output end of the motor (6) is coaxially fixed with a stirring shaft (7) movably arranged at the top of the inner wall of the fermentation tank (1), a first stirring blade (8) is arranged at the outer side of the stirring shaft (7), a second stirring blade (9) is arranged at the inner side of the stirring shaft, and the first stirring blade (8) and the second stirring blade (9) are respectively positioned in the aerobic fermentation tank (3) and the anaerobic fermentation tank (4);

a water storage cavity (10) is arranged in the partition wall (2), a plurality of groups of heating water pipes (11) are arranged in the anaerobic fermentation tank (4), a water inlet of each heating water pipe (11) is communicated with the corresponding water storage cavity (10), an electromagnetic valve is arranged at the water inlet, a pump (12) is arranged at the bottom of the fermentation tank (1), a water inlet pipe (13) is arranged at the output end of the pump (12), and the tail end of the water inlet pipe (13) is communicated with the top of the corresponding water storage cavity (10);

a thermometer (14) is arranged at the bottom of the anaerobic fermentation tank (4);

the bottom of the water storage cavity (10) is provided with a drain pipe (15) extending to the outside of the fermentation tank (1);

a slurry pump (16) is arranged on the inner side wall of the partition wall (2), a slurry suction pipe (17) is arranged at the inlet of the slurry pump (16), and the slurry suction pipe (17) extends to the bottom of the aerobic fermentation tank (3);

a biogas pipe (18) is arranged at the top of the fermentation tank (1), and a biogas collector (19) is arranged at the tail end of the biogas pipe (18).

2. The biogas digester based on livestock manure fermentation according to claim 1, wherein: an exhaust pipe (20) is arranged on the side wall of the fermentation tank (1), and a switch valve is arranged on the exhaust pipe (20).

3. The biogas digester based on livestock manure fermentation according to claim 1, wherein: the heating water pipe (11) is in an annular shape, and the heating water pipe (11) surrounds the outer side of the second stirring blade (9).

4. The biogas digester based on livestock manure fermentation according to claim 1, wherein: the thickness of one side wall of the water storage cavity (10) close to the aerobic fermentation tank (3) is smaller than that of the side wall of the water storage cavity close to the anaerobic fermentation tank (4).

5. The biogas digester based on livestock manure fermentation according to claim 1, wherein: the first stirring blade (8) and the second stirring blade (9) are separated by a partition wall (2).