An aeration device for an aerobic fermentation tank

Abstract

The utility model discloses an aeration device of aerobic fermentation tank belongs to the organic fertilizer production technical field, including setting in the main gas pipeline of the bottom wall in the fermentation tank body, through the connecting assembly detachable setting on the multiple branch gas pipeline of main gas pipeline, the aeration head of setting in each branch gas pipeline top, set up the anti -blocking subassembly on aeration head, detachable setting in the baffle above anti -blocking subassembly and located in the fermentation tank body, set up a plurality of first gas hole on the baffle, and set up the gas feeding device of the main gas pipeline communication with outside the fermentation tank body, the length direction of branch gas pipeline and the length direction of main gas pipeline perpendicular each other. The utility model discloses through the perpendicular setting of multiple detachable connection's branch gas pipeline on main gas pipeline, can be convenient to separate branch gas pipeline, has reduced the equipment downtime and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of organic fertilizer production technology, and in particular to an aeration device for an aerobic fermentation tank. Background Technology

[0002] In the organic fertilizer production process, the aeration device in the aerobic fermentation tank is a key piece of equipment to ensure smooth fermentation. However, the existing aeration devices, due to their fixed structure and difficulty in disassembly, have become increasingly problematic over time, seriously affecting production efficiency and the quality of organic fertilizer.

[0003] First, the fibers, particulate matter, and sticky substances in the fermentation material easily adhere to the inner walls of the air delivery pipes and aeration heads during aeration, forming thick layers of grime over time and potentially causing blockages. Because existing aeration devices often use welded or non-removable fixed connections between pipes and between pipes and aeration heads, when blockages occur, it's impossible to disassemble and clean individual blocked areas; the entire aeration system must be removed from the fermentation tank. This not only requires significant manpower and time but may also cause unnecessary damage to the aeration device during disassembly, increasing equipment maintenance costs.

[0004] Secondly, after long-term operation, some components of the aeration device will be damaged due to wear, corrosion, etc., and need to be replaced. However, the existing fixed connection structure makes it extremely difficult to replace a single damaged component, often requiring the replacement of the entire aeration unit, resulting in a great waste of materials, as well as prolonging equipment downtime and affecting the continuous production of organic fertilizer. Utility Model Content

[0005] The purpose of this invention is to provide an aeration device for an aerobic fermentation tank, which can specifically replace clogged or damaged aeration branch pipes, thereby reducing equipment downtime and maintenance costs.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] An aeration device for an aerobic fermentation tank includes a main gas supply pipe disposed on the bottom wall of the fermentation tank body, multiple branch gas supply pipes detachably disposed on the main gas supply pipe via connecting components, an aeration head disposed at the top of each branch gas supply pipe, an anti-clogging component disposed on the aeration head, a partition detachably disposed above the anti-clogging component and located inside the fermentation tank body, multiple first vent holes disposed on the partition, and an air supply device disposed outside the fermentation tank body and communicating with the main gas supply pipe; the length direction of the branch gas supply pipes is perpendicular to the length direction of the main gas supply pipe.

[0008] Preferably, the connecting assembly includes connecting pipes disposed on the side wall of the main gas pipeline and having the same number as the distribution gas pipelines, and a support frame disposed on the bottom wall of the fermentation tank body for supporting the distribution gas pipelines; the distribution gas pipelines and the connecting pipes are connected by flanges.

[0009] Preferably, the support frame includes a vertical rod threaded onto the bottom wall of the fermentation tank body, and an arc-shaped block disposed at the top of the vertical rod.

[0010] Preferably, the anti-clogging component includes an anti-clogging sleeve fitted onto the aeration head, and a plurality of second vent holes disposed on the anti-clogging sleeve; the diameter of the second vent holes is smaller than the diameter of the air outlet of the aeration head.

[0011] Preferably, the anti-clogging sleeve is threadedly connected to the aeration head.

[0012] Preferably, the anti-clogging sleeve is a hollow frustum structure with a larger top and a smaller bottom, and the second vent holes are evenly distributed on the side wall of the anti-clogging sleeve.

[0013] Preferably, the aeration device further includes a support plate surrounding the inner wall of the fermentation tank body, the vertical projection of the support plate being located outside the gas distribution pipe.

[0014] Preferably, the first vent is a frustum-shaped structure with a smaller top and a larger bottom, the inner diameter of the top of the first vent is 2-3 mm, and the inner diameter of the bottom of the first vent is 5-10 mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes multiple detachable gas distribution pipes vertically connected to the main gas supply pipe to create a uniform aeration zone within the fermentation tank. Combined with anti-clogging components on the aeration heads and baffles with first vent holes, this ensures efficient oxygen delivery to the fermentation material, meeting the aerobic metabolic needs of microorganisms, while effectively preventing direct contact between the material and aeration components such as the aeration heads and anti-clogging components, reducing the risk of clogging. Furthermore, the detachable structure facilitates the individual disassembly of the gas distribution pipes, reducing equipment downtime and maintenance costs. The gas delivery device is connected to the main gas supply pipe, providing a stable gas source and ensuring continuous oxygen supply during fermentation, thereby improving the fermentation efficiency and quality stability of organic fertilizer. Attached Figure Description

[0017] Figure 1 This is a top view of the gas distribution pipeline in Example 1;

[0018] Figure 2 This is a schematic diagram of the partition in Example 1 from a top view.

[0019] Figure 3 for Figure 2 A cross-sectional view of the first vent hole in the middle, taken from the frontal view.

[0020] Figure 4 for Figure 1 A cross-sectional view of the gas distribution pipeline after an anti-clogging sleeve has been installed.

[0021] In the diagram: 1-Fermentation tank body, 2-Main gas supply pipe, 3-Secondary gas supply pipe, 4-Aeration head, 11-Baffle plate, 5-First vent hole, 6-Connecting pipe, 7-Support frame, 8-Anti-clogging sleeve, 9-Second vent hole, 10-Support plate, 12-Gas delivery device. Detailed Implementation

[0022] Example 1

[0023] An aeration device for an aerobic fermentation tank, such as Figure 1 As shown ( Figure 1 The fermentation tank body 1 (without drawing the partition 11 and anti-clogging components) includes a main gas supply pipe 2 installed on the bottom wall of the fermentation tank body 1, multiple branch gas supply pipes 3 (50mm diameter stainless steel pipes) detachably installed on the main gas supply pipe 2 via connecting components, an aeration head 4 installed at the top of each branch gas supply pipe 3, an anti-clogging component installed on the aeration head 4, a partition 11 detachably installed above the anti-clogging component and located inside the fermentation tank body 1, multiple first vent holes 5 installed on the partition 11, and an air supply device 12 installed outside the fermentation tank body 1 and connected to the main gas supply pipe 2; the main gas supply pipe 2 is a 100mm diameter stainless steel pipe, such as... Figure 1 As shown, one end of it is closed, and the other end extends out of the fermentation tank body 1 and is connected to the air supply device 12. The air supply device 12 is a Roots blower to meet the aeration requirements.

[0024] The length direction of the gas distribution pipeline 3 is perpendicular to the length direction of the main gas distribution pipeline 2, and the gas distribution pipeline 3 is distributed at equal intervals on the main gas distribution pipeline 2.

[0025] Furthermore, such as Figure 1 and Figure 4 As shown, the connecting assembly includes connecting pipes 6 (the connecting pipes 6 are integrally formed with the main gas supply pipe 2, have a diameter of 50 mm, and communicate with the interior of the main gas supply pipe 2, with each connecting pipe 6 connected to a branch gas supply pipe 3 via a flange) and a support frame 7 disposed on the bottom wall of the fermentation tank body 1 for supporting the branch gas supply pipes 3; Figure 1As shown, the gas distribution pipe 3 and the connecting pipe 6 are connected by flanges, and the flanges are connected by bolts. The support frame 7 provides effective support for the gas distribution pipe 3, preventing the pipe from deforming due to material pressure or its own weight, extending the service life of the pipe, and further improving the structural stability of the aeration system. In addition, the detachable flange connection facilitates the individual disassembly and assembly of the gas distribution pipe 3, enhancing maintenance convenience.

[0026] Furthermore, such as Figure 4 As shown, the anti-clogging component includes an anti-clogging sleeve 8 fitted onto the aeration head 4, and a plurality of second vent holes 9 disposed on the anti-clogging sleeve 8; the diameter of the second vent holes 9 is smaller than the diameter of the air outlet of the aeration head 4. The anti-clogging sleeve 8 can protect the aeration head 4 and extend its service life.

[0027] Furthermore, such as Figure 1-2 As shown, the aeration device also includes a support plate 10 surrounding the inner wall of the fermentation tank body 1, with the vertical projection of the support plate 10 located outside the gas distribution pipe 3. The support plate 10 is positioned away from the gas distribution pipe 3, thus not affecting the disassembly and maintenance of the gas distribution pipe 3, and facilitating the quick removal and placement of the partition plate 11, thereby improving the convenience of equipment maintenance.

[0028] Working principle: The vertical distance between the partition 11 and the anti-clogging sleeve 8 is at least 2cm. When aeration is required, the air supply device 12 is turned on so that air enters the main air supply pipe 2, then enters multiple branch air supply pipes 3, and finally exits through the air outlet on the aeration head 4 and multiple second air vents 9 on the anti-clogging sleeve 8. Afterwards, it expands evenly upwards and is discharged into the fermentation raw material along the first air vent 5 on the partition 11, so as to achieve the purpose of uniformly providing oxygen.

[0029] After fermentation is complete, if the aeration components need to be repaired, simply remove the baffle 11 upwards and then perform normal maintenance. If a gas distribution pipe 3 needs to be disassembled, it can be disassembled directly, making the operation extremely convenient.

[0030] Example 2

[0031] Based on Example 1, such as Figure 4 As shown, the support frame 7 includes a vertical rod threaded onto the bottom wall of the fermentation tank body 1, and an arc-shaped block disposed at the top of the vertical rod. The arc-shaped block adapts to the structure of the gas distribution pipe 3, allowing it to fit snugly against the gas distribution pipe 3 and improve the support effect.

[0032] Furthermore, the anti-clogging sleeve 8 is threadedly connected to the aeration head 4. The threaded connection enables a detachable connection between the anti-clogging sleeve 8 and the aeration head 4. When impurities adhere to the inner wall of the anti-clogging sleeve 8 or the air vents are blocked, the anti-clogging sleeve 8 can be quickly unscrewed for cleaning or replacement. The operation is simple and does not require disassembling the entire aeration head 4, reducing maintenance difficulty and time costs.

[0033] Furthermore, the anti-clogging sleeve 8 is a hollow frustum structure with a larger top and a smaller bottom, and the second vent holes 9 are evenly distributed on the sidewall of the anti-clogging sleeve 8. The frustum structure allows gas to be discharged from vent holes at different heights, expanding the aeration range. Combined with the evenly distributed vent holes, it allows oxygen to diffuse more evenly into the fermentation material, avoiding situations where the local oxygen concentration is too high or too low. In addition, the structure with a larger top and a smaller bottom also allows fine materials to directly contact the second vent holes 9 after falling along the first vent hole 5, effectively preventing the materials from clogging the second vent holes 9, reducing the risk of clogging the second vent holes 9, and extending the service life.

[0034] Furthermore, the first vent 5 is a frustum shape, smaller at the top and larger at the bottom. The inner diameter of the top of the first vent 5 is 2-3 mm, and the inner diameter of the bottom is 5-10 mm. The small diameter at the top can effectively prevent fermentation material from leaking into the aeration component below, reducing the risk of blockage in the aeration component; the large diameter at the bottom can reduce the resistance when gas passes through, ensuring that oxygen enters the material smoothly; the frustum shape can also guide the gas to diffuse upwards, reducing the retention of gas in the hole and improving aeration efficiency.

Claims

1. An aeration device for an aerobic fermentation tank, characterized in that, The system includes a main gas supply pipe (2) disposed on the bottom wall of the fermentation tank body (1), multiple branch gas supply pipes (3) detachably disposed on the main gas supply pipe (2) via a connecting component, an aeration head (4) disposed at the top of each branch gas supply pipe (3), an anti-clogging component disposed on the aeration head (4), a partition (11) detachably disposed above the anti-clogging component and located inside the fermentation tank body (1), multiple first vent holes (5) disposed on the partition (11), and an air supply device disposed outside the fermentation tank body (1) and connected to the main gas supply pipe (2); the length direction of the branch gas supply pipes (3) is perpendicular to the length direction of the main gas supply pipe (2).

2. The aeration device for an aerobic fermentation tank according to claim 1, characterized in that, The connecting assembly includes connecting pipes (6) disposed on the side wall of the main gas pipeline (2) and having the same number as the distribution gas pipelines (3), and a support frame (7) disposed on the inner bottom wall of the fermentation tank body (1) for supporting the distribution gas pipelines (3); the distribution gas pipelines (3) and the connecting pipes (6) are connected by flanges.

3. The aeration device for an aerobic fermentation tank according to claim 2, characterized in that, The support frame (7) includes a vertical rod threaded into the bottom wall of the fermentation tank body (1) and an arc-shaped block at the top of the vertical rod.

4. The aeration device for an aerobic fermentation tank according to claim 1, characterized in that, The anti-clogging component includes an anti-clogging sleeve (8) sleeved on the aeration head (4) and a plurality of second vent holes (9) provided on the anti-clogging sleeve (8); the diameter of the second vent holes (9) is smaller than the diameter of the air outlet of the aeration head (4).

5. The aeration device for an aerobic fermentation tank according to claim 4, characterized in that, The anti-clogging sleeve (8) is threadedly connected to the aeration head (4).

6. The aeration device for an aerobic fermentation tank according to claim 4, characterized in that, The anti-clogging sleeve (8) is a hollow frustum structure with a larger top and a smaller bottom, and the second vent hole (9) is evenly distributed on the side wall of the anti-clogging sleeve (8).

7. The aeration device for an aerobic fermentation tank according to claim 1, characterized in that, It also includes a support plate (10) surrounding the inner wall of the fermentation tank body (1), the vertical projection of which is located outside the gas distribution pipe (3).

8. The aeration device for an aerobic fermentation tank according to claim 1, characterized in that, The first vent (5) is a frustum-shaped structure with a smaller top and a larger bottom. The inner diameter of the top of the first vent (5) is 2-3 mm, and the inner diameter of the bottom of the first vent (5) is 5-10 mm.

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