A filter device for separating solid and liquid in biogas tank slurry

CN224821795UActive Publication Date: 2026-10-09程黎伟
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Patent Information

Application Number
CN202522341880.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-05
Publication Date
2026-10-09
Estimated Expiration
2035-11-05

AI Technical Summary

Technical Problem

[0005]本实用新型提供一种沼气池沼液固液分离过滤装置,旨在解决背景技术中提出的现有沼气池沼液固液分离过滤装置在对沼液和沼渣分离后,不方便将沼渣倒出,需人工从装置中手动挖出,增加人工成本,同时也降低了沼液和沼渣分离效率等问题

Benefits of technology

[0011] Preferably, the second through hole is provided in multiple sets and is distributed in a ring array on the pressure ring.

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Abstract

The utility model discloses a kind of biogas tank biogas slurry solid-liquid separation filtering devices, belong to biogas slurry solid-liquid separation field, the biogas slurry solid-liquid separation filtering device includes bottom plate, the end face of the bottom plate is installed with dumping structure, separation cylinder is installed on the dumping structure, the dumping structure includes fixed frame installed in the end face of bottom plate, the end face of the fixed frame is symmetrically installed with inclined frame and the transverse plate being set on fixed frame, rotating installation has rotating lever on the inclined frame;By setting dumping structure, the function of overturning dumping to separation cylinder is realized, it is convenient to quickly pour out in filter screen cylinder biogas residue, avoid the existing biogas tank biogas slurry solid-liquid separation filtering device after biogas slurry and biogas residue separation, it is inconvenient to pour out biogas residue, need manual excavation from device, increase artificial cost, also reduced biogas slurry and biogas residue separation efficiency problem, reduce manual intervention, save artificial cost, improve biogas slurry and biogas residue separation efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of solid-liquid separation technology of biogas slurry, specifically a solid-liquid separation and filtration device for biogas digesters. Background Technology

[0002] Biogas slurry is a bright brown liquid formed after the fermentation of organic matter. It contains amino acids, cellulose, cellulase, protein, ribose, auxins, gibberellins, unsaturated fatty acids, and certain antibiotics. Biogas slurry is mainly used for seed soaking, foliar fertilization, mixing with nutrient soil, as a flower and fruit preservative, as a mother liquor for hydroponics, and for growing flowers. Therefore, to make full use of biogas slurry, solid-liquid separation of the slurry and biogas residue is a crucial step.

[0003] Existing biogas digester slurry solid-liquid separation and filtration devices make it inconvenient to pour out the biogas residue after separating the slurry and residue. The residue needs to be manually dug out of the device, which increases labor costs and also reduces the separation efficiency of slurry and residue.

[0004] Therefore, this utility model provides a solid-liquid separation and filtration device for biogas digester slurry to solve the above problems. Utility Model Content

[0005] This utility model provides a biogas digester slurry solid-liquid separation and filtration device, which aims to solve the problems mentioned in the background art, such as the inconvenience of pouring out the biogas residue after separating the biogas slurry and biogas residue, which requires manual digging out of the device, increasing labor costs, and also reducing the separation efficiency of biogas slurry and biogas residue.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a biogas digester slurry solid-liquid separation and filtration device, comprising a bottom plate, wherein a tilting structure is installed on the end face of the bottom plate, and a separation cylinder is installed on the tilting structure; The tilting structure includes a fixed frame installed on the end face of the base plate. A tilting frame and a horizontal plate are symmetrically installed on the end face of the fixed frame. A rotating rod is rotatably installed on the tilting frame, and the other ends of two sets of rotating rods are connected by a fixing ring. A first connecting frame is installed at the center of the horizontal plate, and a hydraulic cylinder is rotatably installed on the first connecting frame. A second connecting frame is rotatably installed on the drive end of the hydraulic cylinder. By setting up the tilting structure, the separation cylinder can be tilted and overturned, facilitating the rapid removal of biogas residue from the filter cylinder. This avoids the problem in existing biogas digester solid-liquid separation filtration devices where it is inconvenient to remove biogas residue after separation, requiring manual digging from the device, increasing labor costs, and also reducing the efficiency of biogas slurry and biogas residue separation.

[0007] Preferably, a fixing ring is installed at the upper end of the separating cylinder, a placement frame and a connecting ring disposed at the upper end of the fixing ring are installed at the lower end of the fixing ring, a filter screen cylinder is installed at the lower end of the connecting ring and inside the placement frame, a pressure ring is installed at the upper end of the connecting ring, a second through hole is opened on the pressure ring, and a bolt is installed on the pressure ring through the second through hole.

[0008] Preferably, a drain pipe is installed on the lower outer wall of the separation cylinder through a connection hole, and two sets of support lugs are installed on the left and right side walls of the bottom plate.

[0009] Preferably, a drain pipe is installed on the lower outer wall of the separation cylinder through a connection hole, and two sets of support lugs are installed on the left and right side walls of the bottom plate.

[0010] Preferably, the inner wall of the fixing ring is connected to the outer wall of the separation cylinder, and the second connecting frame is connected to the outer wall of the separation cylinder.

[0011] Preferably, the second through hole is provided in multiple sets and is distributed in a ring array on the pressure ring.

[0012] Preferably, the connecting ring has a first through hole symmetrical to the second through hole, and the fixing ring has a threaded hole corresponding to the bolt.

[0013] Beneficial effects: By setting up a tilting structure and using a combination of a fixed frame, tilting frame, fixed ring, hydraulic cylinder, and separation cylinder, the separation cylinder can be tilted and turned over, facilitating the quick removal of biogas residue from the filter cylinder. This avoids the problem of existing biogas digester solid-liquid separation and filtration devices not being able to easily remove the biogas residue after separating the biogas slurry and biogas residue, which requires manual digging from the device, increasing labor costs. It also reduces the efficiency of biogas slurry and biogas residue separation, reduces manual intervention, saves labor costs, and improves the efficiency of biogas slurry and biogas residue separation. Attached Figure Description

[0014] Figure 1 A three-dimensional structural schematic diagram of a biogas digester slurry solid-liquid separation and filtration device; Figure 2 A schematic diagram showing the tilting structure of a biogas digester slurry solid-liquid separation and filtration device. Figure 3 A schematic diagram of the cross-sectional structure of the separation cylinder of a biogas digester slurry solid-liquid separation and filtration device; Figure 4 This is a partially disassembled structural diagram of a biogas digester slurry solid-liquid separation and filtration device.

[0015] In the diagram: 1. Base plate; 2. Tilting structure; 21. Fixing frame; 22. Inclining frame; 23. Horizontal plate; 24. Rotating rod; 25. Fixing ring; 26. First connecting frame; 27. Hydraulic cylinder; 271. Lower fixing sleeve; 272. Upper fixing sleeve; 28. Second connecting frame; 3. Separating cylinder; 4. Fixing ring; 41. Threaded hole; 5. Placement frame; 6. Connecting ring; 61. First through hole; 7. Filter screen cylinder; 8. Pressure ring; 81. Second through hole; 9. Bolt; 10. Drain pipe; 11. Support lug. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 This embodiment provides a solid-liquid separation and filtration device for biogas digester slurry, such as... Figure 1-4 As shown, the biogas slurry solid-liquid separation and filtration device includes a base plate 1, a tilting structure 2 is installed on the end face of the base plate 1, and a separation cylinder 3 is installed on the tilting structure 2. The tilting structure 2 includes a fixed frame 21 installed on the end face of the base plate 1. An inclined frame 22 and a horizontal plate 23 are symmetrically installed on the end face of the fixed frame 21. A rotating rod 24 is rotatably installed on the inclined frame 22. The other ends of the two sets of rotating rods 24 are connected by a fixing ring 25. A first connecting frame 26 is installed at the center of the horizontal plate 23. A hydraulic cylinder 27 is rotatably installed on the first connecting frame 26. A second connecting frame 28 is rotatably installed on the drive end of the hydraulic cylinder 27.

[0018] In use, the mixture to be separated is conveyed from the upper port of the pressure ring 8 to the inside of the filter cylinder 7 through the conveying pipe. Through the filtration effect of the filter cylinder 7, the biogas slurry flows through the filter cylinder 7 into the bottom of the inner cavity of the separation cylinder 3. Then, the valve on the support lug 11 is opened, allowing the biogas slurry in the separation cylinder 3 to flow into the collection container for storage, while the biogas residue remains inside the filter cylinder 7. After the separation of biogas slurry and biogas residue is completed, the operator starts the hydraulic cylinder 27 to extend by controlling the switch. The hydraulic cylinder 27 moves the second connecting frame 28 through the upper fixed sleeve 272. Because the two sets of rotating rods 24 rotate on the corresponding two sets of tilting frames 22, and because the fixed ring 25 is connected to the upper outer wall of the separation cylinder 3, the second connecting frame 28 is driven... The moving separation cylinder 3 rotates clockwise around the inclined frame 22 until the upper opening of the separation cylinder 3 is a certain distance below the cylinder body. The separation cylinder 3 moves with the connecting ring 6 through the fixing ring 4 and the pressure ring 8, and the filter screen cylinder 7 follows the separation cylinder 3 to rotate, realizing the function of tilting and pouring the separation cylinder 3. This makes it convenient for the biogas residue to be quickly poured out from the inside of the filter screen cylinder 7. This avoids the problem that existing biogas digester solid-liquid separation and filtration devices are inconvenient to pour out after separating biogas slurry and biogas residue. It requires manual digging out of the device, which increases labor costs and also reduces the efficiency of biogas slurry and biogas residue separation. It reduces manual intervention, saves labor costs, and improves the efficiency of biogas slurry and biogas residue separation.

[0019] In this embodiment, a drain pipe 10 is installed on the lower outer wall of the separator 3 through a connection hole, and two sets of support ears 11 are installed on the left and right side walls of the bottom plate 1. Among them, by setting the support lug 11, the base plate 1 can be fixedly installed on the building ground in the working area by using screws in conjunction with the support lug 11, which can increase the installation stability of the biogas slurry solid-liquid separation filter device and prevent the separation cylinder 3 from tipping over and dumping biogas residue, causing the device to tip over. In this embodiment, the lower end of the hydraulic cylinder 27 is equipped with a lower fixing sleeve 271 that is rotatably connected to the first connecting frame 26, and the driving end of the hydraulic cylinder 27 is equipped with an upper fixing sleeve 272 that is rotatably connected to the second connecting frame 28; the inner wall of the fixing ring 25 is connected to the outer wall of the separation cylinder 3, and the second connecting frame 28 is connected to the outer wall of the separation cylinder 3.

[0020] Example 2 Unlike Example 1, most existing biogas digester slurry solid-liquid separation and filtration devices have their filter screens fixedly installed on the device, making it inconvenient to disassemble, clean, and replace the filter screens. Therefore, a fixing ring 4 is installed at the upper end of the separation cylinder 3, a placement frame 5 is installed at the lower end of the fixing ring 4, and a connecting ring 6 is set at the upper end of the fixing ring 4. A filter screen cylinder 7 is installed at the lower end of the connecting ring 6 and inside the placement frame 5. A pressure ring 8 is installed at the upper end of the connecting ring 6. A second through hole 81 is opened on the pressure ring 8, and a bolt 9 is installed on the pressure ring 8 through the second through hole 81. When in use, if the filter cylinder 7 becomes clogged or damaged after prolonged use, multiple sets of bolts 9 can be removed sequentially using a wrench to remove the pressure ring 8. Then, the connecting ring 6 can be removed, and the filter cylinder 7 can be moved upwards from the placement rack 5 to be taken out. The filter cylinder 7 can be cleaned or replaced with a new one. After cleaning or replacing the connecting ring 6 and the filter cylinder 7, the connecting ring 6 is driven to move the filter cylinder 7 from the upper end of the fixing ring 4 downwards into the inner cavity of the placement rack 5, and it fits against the inner wall of the placement rack 5, so that the lower end face of the connecting ring 6 contacts the upper end face of the fixing ring 4. The pressure ring 8 is then placed on the connecting ring 5. The upper end face of the connecting ring 6 is aligned with the threaded hole 41, the first through hole 61 and the second through hole 81. Then the bolt 9 is driven to move down. The lower end of the bolt 9 passes through the second through hole 81 and the first through hole 61 in sequence and connects with the threaded hole 41. The cleaned or replaced filter screen cylinder 7 is fixedly installed, thereby realizing the function of disassembling, cleaning and replacing the filter screen cylinder 7. This avoids the problem that most of the filter screens of the existing biogas digester solid-liquid separation filter devices are fixedly installed on the device, which is inconvenient to disassemble, clean and replace the filter screen. This improves the use effect of the biogas digester solid-liquid separation filter device. The fixing ring 4 and the placement frame 5 can provide support for the filter cylinder 7, improve the load-bearing capacity of the filter cylinder 7, and prevent the filter cylinder 7 from being damaged or deformed under heavy load. In this embodiment, multiple sets of second through holes 81 are provided and distributed in a ring array on the pressure ring 8; a first through hole 61 is provided on the connecting ring 6 and symmetrical to the second through hole 81; and a threaded hole 41 is provided on the fixing ring 4 and corresponding to the bolt 9.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A biogas digester slurry solid-liquid separation and filtration device, comprising a base plate (1), characterized in that: A tilting structure (2) is installed on the end face of the base plate (1), and a separation cylinder (3) is installed on the tilting structure (2). The tilting structure (2) includes a fixed frame (21) installed on the end face of the base plate (1). The end face of the fixed frame (21) is symmetrically equipped with an inclined frame (22) and a horizontal plate (23) set on the fixed frame (21). A rotating rod (24) is rotatably installed on the inclined frame (22). The other ends of the two sets of rotating rods (24) are connected by a fixing ring (25). A first connecting frame (26) is installed at the center of the horizontal plate (23). A hydraulic cylinder (27) is rotatably installed on the first connecting frame (26). A second connecting frame (28) is rotatably installed on the driving end of the hydraulic cylinder (27).

2. The biogas digester slurry solid-liquid separation and filtration device according to claim 1, characterized in that: A fixing ring (4) is installed at the upper end of the separating cylinder (3). A placement frame (5) and a connecting ring (6) are installed at the lower end of the fixing ring (4). A filter screen cylinder (7) is installed at the lower end of the connecting ring (6) and inside the placement frame (5). A pressure ring (8) is installed at the upper end of the connecting ring (6). A second through hole (81) is opened on the pressure ring (8). A bolt (9) is installed on the pressure ring (8) through the second through hole (81).

3. The biogas digester slurry solid-liquid separation and filtration device according to claim 1, characterized in that: The lower outer wall of the separation cylinder (3) is fitted with a drain pipe (10) through a connection hole, and the left and right side walls of the bottom plate (1) are fitted with two sets of lugs (11).

4. The biogas digester slurry solid-liquid separation and filtration device according to claim 1, characterized in that: The lower end of the hydraulic cylinder (27) is equipped with a lower fixed sleeve (271) that is rotatably connected to the first connecting frame (26), and the drive end of the hydraulic cylinder (27) is equipped with an upper fixed sleeve (272) that is rotatably connected to the second connecting frame (28).

5. The biogas digester slurry solid-liquid separation and filtration device according to claim 1, characterized in that: The inner wall of the fixing ring (25) is connected to the outer wall of the separation cylinder (3), and the second connecting frame (28) is connected to the outer wall of the separation cylinder (3).

6. The biogas digester slurry solid-liquid separation and filtration device according to claim 2, characterized in that: The second through hole (81) has multiple sets and is distributed in a ring array on the pressure ring (8).

7. The biogas digester slurry solid-liquid separation and filtration device according to claim 2, characterized in that: The connecting ring (6) has a first through hole (61) symmetrical to the second through hole (81), and the fixing ring (4) has a threaded hole (41) corresponding to the bolt (9).