Methane tank stirring device

Abstract

The utility model discloses a biogas digester stirring device, relates to the technical field of biogas digester stirring, and aims to solve the problems that a biogas slurry condensation shell generated at the upper part cannot be fully scattered and biogas residues at the bottom are precipitated due to the fact that the existing biogas digester stirring device cannot fully stir biogas slurry and is easy to stratify during stirring. According to the technical scheme, the stirring tank comprises a stirring tank body, one side of the stirring tank body is connected with a feeding pipe, the other side of the stirring tank body is connected with a discharging pipe, a stirring mechanism for preventing precipitation is arranged in the stirring tank body, and a stirring cover is installed at the top of the stirring tank body. The stirring tank is novel in structure, biogas residues at the bottom of the stirring tank can be rolled up along with stirring, biogas slurry condensation shells generated on the upper portion of the stirring tank are fully scattered, the interior of the stirring tank is kept in a flowing state, meanwhile, the biogas slurry is heated, the purpose of activating biogas slurry reaction is achieved, the efficiency of biogas production from the biogas slurry is improved, and energy is saved. And the yield of biogas is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas tank stirring, in particular to a biogas tank stirring device. Background Art

[0002] A biogas tank is a combustible gas produced by the fermentation of organic matter in an anaerobic environment under certain temperature, humidity and pH conditions through microbial fermentation. This gas is called biogas. If the biogas tank is in a static state for a long time, stratification will occur. Traditional biogas tank stirring devices often do not stir the biogas slurry sufficiently during stirring, which is prone to stratification. As a result, the biogas slurry condensation crust produced on the upper part cannot be fully broken up, and the biogas residue at the bottom settles, reducing the gas production of the stirring tank. A biogas tank stirring device is now proposed, which can roll up the biogas residue at the bottom of the stirring tank during stirring, and fully break up the biogas condensation crust produced on the upper part of the stirring tank, keeping the interior of the stirring tank in a flowing state. At the same time, by heating the biogas slurry, the purpose of activating the biogas reaction is achieved, thereby improving the efficiency of biogas production from the biogas slurry and greatly increasing the biogas production. Utility Model Content

[0003] The utility model provides a biogas tank stirring device, which solves the existing problems.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A biogas tank stirring device includes a stirring tank, a feed pipe is connected to one side of the stirring tank, and a discharge pipe is connected to the other side of the stirring tank, a stirring mechanism for preventing sedimentation is provided inside the stirring tank, and a stirring cover is installed on the top of the stirring tank, the stirring mechanism includes a first stirring rod, and the first stirring rod is connected to the top of the stirring cover, a spiral blade is wrapped around the side of the first stirring rod, and the first stirring rod is connected to the second stirring rod.

[0006] Preferably, a feed flange is fixedly installed on the top of the feed pipe, and the feed flange is threadedly engaged with a feed fixing bolt; and a discharge flange is fixedly installed on the top of the discharge pipe, and the discharge flange is threadedly engaged with a discharge fixing bolt.

[0007] Preferably, a stirring motor is fixedly mounted on the top of the first stirring rod, and the stirring motor is mounted on the top of the stirring cover.

[0008] Preferably, an air outlet hole is opened on the top of the stirring cover, and an air outlet pipe is fixedly connected to the top of the stirring cover, and the air outlet pipe matches the shape and size of the air outlet hole.

[0009] Preferably, an air storage box is fixedly mounted on one end of the air outlet pipe.

[0010] Preferably, a heating wire is provided at the bottom of the stirring tank.

[0011] The beneficial effects of the utility model are:

[0012] 1. The feed pipe is used to introduce organic matter such as human and animal feces, straw, sewage, etc. into the mixing tank. The feed flange and discharge flange are used to seal the feeding and discharging of the mixing tank to ensure that the internal biogas does not leak;

[0013] 2. The biogas generated by the reaction in the mixing tank enters the outlet pipe from the outlet hole and is guided into the gas storage box through the outlet pipe. The gas storage box collects the produced biogas.

[0014] 3. The spiral blade is used to roll up the biogas residue deposited at the bottom of the mixing tank and mix it inside the mixing tank to better produce biogas, greatly increasing the biogas yield. The second stirring rod is used to fully break up the biogas condensation crust produced on the upper part of the mixing tank.

[0015] 4. The heating wire slightly heats the biogas slurry to a suitable temperature for producing biogas, thereby improving the production efficiency of biogas.

[0016] To sum up, the adoption of the structure of the utility model can better solve the problem that the biogas tank stirring device often does not stir the biogas slurry sufficiently during stirring in the stirring tank, which easily leads to stratification, so that the biogas slurry condensation crust produced on the upper part cannot be fully broken up, and the biogas residue at the bottom is precipitated, thereby reducing the gas production of the stirring tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a biogas tank stirring device of the present utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the biogas tank stirring device of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the structure of the biogas tank stirring device of the present utility model.

[0020] Numbers in the figure: 1. Mixing tank; 2. Feed pipe; 3. Discharge pipe; 4. Feed flange; 5. Feed fixing bolt; 6. Discharge flange; 7. Discharge fixing bolt; 8. Mixing cover; 9. First stirring rod; 10. Spiral blade; 11. Second stirring rod; 12. Mixing motor; 13. Air outlet; 14. Air outlet pipe; 15. Air storage box; 16. Heating wire. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1 A biogas tank stirring device includes a stirring tank 1, one side of the stirring tank 1 is connected to a feed pipe 2, the feed pipe 2 is used to introduce organic matter such as human and animal feces, straw, sewage, etc. into the stirring tank 1, and the other side of the stirring tank 1 is connected to a discharge pipe 3, a stirring mechanism is provided inside the stirring tank 1 to prevent sedimentation, and a stirring cover 8 is installed on the top of the stirring tank 1.

[0023] Reference Figure 1 and Figure 3 A feed flange 4 is fixedly installed on the top of the feed pipe 2, and the feed flange 4 is threadedly engaged with a feed fixing bolt 5. A discharge flange 6 is fixedly installed on the top of the discharge pipe 3, and the discharge flange 6 is threadedly engaged with a discharge fixing bolt 7. The feed flange 4 and the discharge flange 6 are used to seal the feeding and discharging of the mixing tank 1 to ensure that the internal biogas does not leak, and the top of the mixing cover 8 is fixedly connected to an outlet pipe 14. The biogas reacted in the mixing tank 1 flows out from the outlet pipe 14, and the outlet pipe 14 matches the shape and size of the outlet hole 13. An air storage box 15 is fixedly installed at one end of the outlet pipe 14. The biogas flows into the inside of the gas storage box 15 from the outlet pipe 14, and the gas storage box 15 collects the produced biogas.

[0024] Reference Figure 2 and Figure 3 The stirring mechanism includes a first stirring rod 9, and the first stirring rod 9 is connected to the top of the stirring cover 8. A spiral blade 10 is wound around the side of the first stirring rod 9. The spiral blade 10 is used to rotate and roll up the biogas residue deposited at the bottom of the stirring tank 1 and mix it inside the stirring tank 1 to better produce biogas, greatly improving the biogas yield. The first stirring rod 9 is connected to the second stirring rod 11. The second stirring rod 11 is used to fully break up the biogas condensation crust produced on the upper part of the stirring tank 1. A stirring motor 12 is fixedly installed on the top of the first stirring rod 9. The stirring motor 12 controls the first stirring rod 9 and the second stirring rod 11 to rotate. The spiral blade 10 rotates with the first stirring rod 9. The stirring motor 12 is installed on the top of the stirring cover 8. An air outlet 13 is provided on the top of the stirring cover 8. The biogas reacted in the stirring tank 1 enters the air outlet pipe 14 from the air outlet 13. A heating wire 16 is provided at the bottom of the stirring tank 1. The heating wire 16 slightly heats the biogas to make the biogas reach a suitable temperature for producing biogas, thereby improving the production efficiency of biogas.

[0025] Working principle: First, when in use, organic matter such as human and animal feces, straw, sewage, etc. is introduced into the mixing tank 1 through the feed pipe 2, and the feed flange 4 is fixed and sealed by tightening the feed fixing bolts 5, and the stirring motor 12 is started. The spiral blade 10 rotates to roll up the biogas residue deposited at the bottom of the mixing tank 1 and mixes it inside the mixing tank 1, so as to better produce biogas and greatly improve the biogas yield. The second stirring rod 11 is used to fully break up the biogas condensation crust produced on the upper part of the mixing tank 1 to ensure sufficient stirring. At the same time, the heating wire 16 arranged at the bottom of the mixing tank 1 slightly heats the biogas to make the biogas reach a suitable temperature for producing biogas, activate the biogas reaction, and improve the production efficiency of biogas. The produced biogas enters the outlet pipe 14 from the outlet hole 13, and is guided into the gas storage box 15 through the outlet pipe 14. The gas storage box 15 collects the produced biogas to complete the production and collection of biogas.

[0026] After the production is completed, the discarded biogas slurry and biogas residue are taken out from the discharge pipe 3, and the discharge flange 6 is fixed and sealed by tightening the discharge fixing bolts 7.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A biogas tank stirring device, comprising a stirring tank (1), characterized in that: One side of the stirring tank (1) is connected to a feed pipe (2), and the other side of the stirring tank (1) is connected to a discharge pipe (3). A stirring mechanism for preventing sedimentation is provided inside the stirring tank (1). The stirring mechanism comprises a first stirring rod (9), and the first stirring rod (9) is connected to the top of the stirring cover (8). A spiral blade (10) is wound around the side of the first stirring rod (9), and the first stirring rod (9) is connected to the second stirring rod (11). The stirring cover (8) is installed on the top of the stirring tank (1).

2. A biogas tank stirring device according to claim 1, characterized in that: A feed flange (4) is fixedly mounted on the top of the feed pipe (2), and a feed fixing bolt (5) is threadedly engaged with the feed flange (4); a discharge flange (6) is fixedly mounted on the top of the discharge pipe (3), and a discharge fixing bolt (7) is threadedly engaged with the discharge flange (6).

3. A biogas tank stirring device according to claim 1, characterized in that: A stirring motor (12) is fixedly mounted on the top of the first stirring rod (9), and the stirring motor (12) is mounted on the top of the stirring cover (8).

4. A biogas tank stirring device according to claim 1, characterized in that: An air outlet hole (13) is provided on the top of the stirring cover (8), and an air outlet pipe (14) is fixedly connected to the top of the stirring cover (8), and the shape and size of the air outlet pipe (14) match those of the air outlet hole (13).

5. A biogas tank stirring device according to claim 4, characterized in that: An air storage box (15) is fixedly mounted on one end of the air outlet pipe (14).

6. A biogas tank stirring device according to claim 1, characterized in that: A heating wire (16) is provided at the bottom of the stirring tank (1).

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