A biogas slurry filtration pretreatment device
By designing separation and discharge devices, the problem of impurities clogging the biogas slurry filtration device has been solved, achieving efficient filtration and convenient cleaning, and improving filtration efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI NENGTOU BIOMASS ENERGY DEV & UTILIZATION CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-26
AI Technical Summary
Existing biogas slurry filtration devices are prone to clogging of the filter holes by impurities during use, resulting in reduced filtration efficiency.
A separation device is used, which drives the adjusting rod to push the push plate through the drive motor to remove the blockage of impurities. The impurities are then settled in the connecting block by gravity, restoring the normal operation of the filter holes. At the same time, a discharge device is set up to remove the sediment.
This effectively avoids prolonged filtration time, improves the working efficiency of the filtration device, and facilitates the cleaning of sediment, preventing clogging.
Smart Images

Figure CN224270486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biogas slurry filtration technology, and in particular to a biogas slurry filtration pretreatment device. Background Technology
[0002] Biogas slurry is a brown, turbid liquid formed after anaerobic fermentation of organic matter. Its main components include macro-, meso-, and micronutrients, as well as humic acid, amino acids, and cellulase. Biogas slurry is a byproduct produced by pre-treating organic waste such as crop straw and livestock manure, which is then fed into an anaerobic fermentation tank at approximately 38 degrees Celsius and undergoes a period of anaerobic biological reaction. It typically contains about 1% solids. Biogas slurry can be used for seed soaking, foliar spraying, farmland irrigation, and as a biological disease control agent. It can also be used as a mother liquor for hydroponics and horticultural crop liquid fertilizer. As a special fertilizer, biogas slurry can increase crop yield, improve soil physicochemical properties, and reduce the incidence of crop diseases. A biogas slurry separation device is a piece of equipment used to treat biogas slurry, mainly to remove impurities and solid particles, improving the quality and purity of the biogas slurry.
[0003] Existing equipment, such as CN222033847U, is a biogas slurry filtration pretreatment device, including a filtration assembly. The filtration assembly includes: a frame with a filter box mounted on it; a feed inlet located on the filter box; a partition fixedly connected to the inside of the feed inlet; and a filter screen mounted on the partition. A cleaning assembly is provided on the filter box. The cleaning assembly includes: a rod slidably connected to the filter box. In use, rotating the knob causes a scraper to clean the surface of the filter screen, or pulling the rod outwards causes the rod to insert into the filter holes, pushing out impurities from the filter holes and preventing clogging. This allows for convenient cleaning of impurities on the filter screen surface and also facilitates cleaning of clogged impurities on the filter screen, improving the device's practicality. The operation is simple and quick, convenient for workers, and solves the problem of existing biogas slurry separation devices being inconvenient for cleaning impurities on the filtration structure.
[0004] When workers need to filter biogas slurry, they pour the slurry into the filter device for filtration. However, existing filter devices can become clogged with impurities during use, which prolongs the filtration time and reduces the filtration efficiency. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing filtration devices where filtration efficiency is reduced, and to propose a biogas slurry filtration pretreatment device.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a biogas slurry filtration pretreatment device, comprising an outer casing, a support, and a separation device. The support is mounted on the surface of the outer casing, and the separation device is disposed on the surface of the outer casing. The separation device includes a drive motor, two drive motors are fixedly connected to one side of the surface of the outer casing, and an adjusting rod is fixedly connected to the drive end of the two drive motors. The adjusting rod is rotatably connected to the surface of the outer casing. Two inclined plates are fixedly connected to the surface of the outer casing, and the two inclined plates are symmetrically arranged. Multiple filter holes are opened on the surface of the two inclined plates. A push plate is placed on the surface of the inclined plates, and threaded holes are opened on both sides of the push plate. The inner wall of the threaded hole is threadedly connected to the surface of the adjusting rod. A connecting block is fixedly connected between the two inclined plates, and the surface of the push plate is slidably connected to the surface of the connecting block. The connecting block can cooperate with the inclined plates to achieve the purpose of connecting the inclined plates.
[0007] Preferably, a storage groove is provided on one side of the outer cover. The storage groove is located on one side of the push plate and can cooperate with the outer cover to achieve the purpose of storing the push plate.
[0008] Preferably, the surface of the outer jacket is provided with a discharge device, the discharge device including a discharge port, the discharge port being fixedly connected to one side of the surface of the outer jacket, the discharge port being located above the support, and the discharge port being able to cooperate with the outer jacket to achieve the purpose of guiding impurities.
[0009] Preferably, the surface of the discharge port is threaded with a leak-proof cover, which is located on one side of the outer casing. The leak-proof cover can cooperate with the discharge port to prevent the biogas slurry from flowing out.
[0010] Preferably, an adjusting plate is fixedly connected to the surface of the leak-proof cover. The adjusting plate is located on one side of the outer cover and can cooperate with the leak-proof cover to achieve the purpose of driving the leak-proof cover.
[0011] Preferably, a rotating rod is slidably connected to the inner surface of the adjusting plate, and a pushing rod is fixedly connected to the surface of the push plate. The pushing rod is adapted to the discharge port, and the rotating rod can cooperate with the adjusting plate to achieve the purpose of adjusting the adjusting plate.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, by setting a separation device, when the filtration efficiency of the filter device decreases, the drive motor is started, the drive motor drives the adjusting rod, the adjusting rod rotates and pushes the push plate, the push plate slides and disengages from the receiving groove, the push plate slides and pushes away the debris blocking the filter holes on the surface of the inclined plate, the filter holes return to normal operation, the pushed debris will be affected by gravity and flow to the connecting block, the debris will settle in the connecting block. By setting a separation device, the biogas slurry can be effectively filtered, avoiding the situation of prolonged filtration time during the use of the filter device, thereby improving the working efficiency of the filter device. Attached Figure Description
[0014] Figure 1 This utility model provides a three-dimensional structural diagram of a biogas slurry filtration pretreatment device;
[0015] Figure 2 This utility model provides a schematic diagram of the separation device structure of a biogas slurry filtration pretreatment device;
[0016] Figure 3 This utility model proposes a biogas slurry filtration pretreatment device. Figure 2 Schematic diagram of the structure at point A in the middle;
[0017] Figure 4 This utility model provides a schematic diagram of the discharge device structure of a biogas slurry filtration pretreatment device;
[0018] Figure 5 This utility model proposes a biogas slurry filtration pretreatment device. Figure 4 Schematic diagram of the structure at point B.
[0019] Legend:
[0020] 1. Outer casing; 2. Support frame; 3. Separation device; 31. Drive motor; 32. Threaded hole; 33. Filter hole; 34. Connecting block; 35. Push plate; 36. Storage slot; 37. Adjusting rod; 38. Inclined plate; 4. Discharge device; 41. Discharge port; 42. Leak-proof cover; 43. Adjusting plate; 44. Rotating rod; 45. Push rod. Detailed Implementation
[0021] Please see Figure 1-5 This utility model provides a technical solution: a biogas slurry filtration pretreatment device 3, including an outer casing 1, a support 2 and a separation device 3, wherein the support 2 is installed on the surface of the outer casing 1 and the separation device 3 is disposed on the surface of the outer casing 1.
[0022] The specific setup and function of the separation device 3 and the discharge device 4 will be explained below.
[0023] In this embodiment: the separation device 3 includes a drive motor 31, two drive motors 31 are fixedly connected to the surface of one side of the outer jacket 1, the drive ends of the two drive motors 31 are fixedly connected to an adjusting rod 37, the adjusting rod 37 is rotatably connected to the surface of the outer jacket 1, two inclined plates 38 are fixedly connected to the surface of the outer jacket 1, the two inclined plates 38 are symmetrically arranged, the surface of the two inclined plates 38 is provided with a plurality of filter holes 33, a push plate 35 is placed on the surface of the inclined plate 38, threaded holes 32 are provided on both sides of the push plate 35, and the inner wall of the threaded hole 32 is threadedly connected to the surface of the adjusting rod 37.
[0024] Specifically, a connecting block 34 is fixedly connected between the two inclined plates 38, and the push plate 35 is slidably connected to the surface of the connecting block 34. The connecting block 34 can cooperate with the inclined plates 38 to achieve the purpose of connecting the inclined plates 38.
[0025] Specifically, a storage groove 36 is provided on one side of the outer jacket 1, and the storage groove 36 is located on one side of the push plate 35.
[0026] In this embodiment, the storage slot 36 can cooperate with the outer cover 1 to achieve the purpose of storing the push plate 35.
[0027] In this embodiment: the surface of the outer jacket 1 is provided with a discharge device 4, the discharge device 4 includes a discharge port 41, the discharge port 41 is fixedly connected to the surface of one side of the outer jacket 1, the discharge port 41 is located above the support 2, and the discharge port 41 can cooperate with the outer jacket 1 to achieve the purpose of guiding impurities.
[0028] Specifically, the surface of the discharge port 41 is threaded with a leak-proof cover 42, which is located on one side of the outer casing 1.
[0029] In this embodiment, the leak-proof cover 42 can be matched with the discharge port 41 to prevent the biogas slurry from flowing out.
[0030] Specifically, an adjustment plate 43 is fixedly connected to the surface of the leak-proof cover 42. The adjustment plate 43 is located on one side of the outer jacket 1. The adjustment plate 43 can cooperate with the leak-proof cover 42 to achieve the purpose of driving the leak-proof cover 42.
[0031] Specifically, a rotating rod 44 is slidably connected to the inner surface of the adjusting plate 43, and a pusher rod 45 is fixedly connected to the surface of the push plate 35. The pusher rod 45 is adapted to the discharge port 41.
[0032] In this embodiment, the rotating rod 44 can cooperate with the adjusting plate 43 to achieve the purpose of adjusting the adjusting plate 43.
[0033] Working Principle: By setting up the separation device 3, when the filtration efficiency of the filter device decreases, the drive motor 31 is activated. The drive motor 31 drives the adjusting rod 37, which rotates and pushes the push plate 35. The push plate 35 slides and disengages from the receiving tank 36. The sliding push plate 35 pushes away the debris blocking the filter holes 33 on the surface of the inclined plate 38, allowing the filter holes 33 to resume normal operation. The pushed-away debris is affected by gravity and flows to the connecting block 34, where it settles. By setting up the separation device 3, the biogas slurry can be effectively filtered, avoiding prolonged filtration time during use and thus improving the working efficiency of the filter device. In addition, by setting up a discharge device 4, the rotating rod 44 is pushed, and the adjusting plate 43 guides the rotating rod 44. The rotating rod 44 extends from one side of the adjusting plate 43. Rotating the rotating rod 44 drives the adjusting plate 43, which in turn drives the leak-proof cover 42. The leak-proof cover 42 rotates and disengages from the discharge port 41, activating the separation device 3. The push plate 35 slides and pushes the push rod 45, which pushes the sediment in the connecting block 34 toward the discharge port 41. The sediment flows out of the outer jacket 1. By setting up the discharge device 4, it is possible to effectively facilitate the cleaning of sediment by workers, avoiding sediment accumulation and clogging of the filter holes 33, which in turn helps workers clean the filter device.
Claims
1. A biogas slurry filtration pretreatment device, comprising an outer casing (1), a support frame (2), and a separation device (3), characterized in that: The bracket (2) is installed on the surface of the outer jacket (1), and the separation device (3) is set on the surface of the outer jacket (1). The separation device (3) includes a drive motor (31). Two drive motors (31) are fixedly connected to the surface of one side of the outer jacket (1). An adjusting rod (37) is fixedly connected to the drive end of the two drive motors (31). The adjusting rod (37) is rotatably connected to the surface of the outer jacket (1). Two inclined plates (38) are fixedly connected to the surface of the outer jacket (1). The two inclined plates (38) are symmetrically arranged. Multiple filter holes (33) are opened on the surface of the two inclined plates (38). A push plate (35) is placed on the surface of the inclined plate (38). Threaded holes (32) are opened on both sides of the push plate (35). The inner wall of the threaded hole (32) is threadedly connected to the surface of the adjusting rod (37).
2. The biogas slurry filtration pretreatment device according to claim 1, characterized in that: A connecting block (34) is fixedly connected between the two inclined plates (38), and the push plate (35) is slidably connected to the surface of the connecting block (34).
3. The biogas slurry filtration pretreatment device according to claim 2, characterized in that: A storage groove (36) is provided on one side of the outer jacket (1), and the storage groove (36) is located on one side of the push plate (35).
4. The biogas slurry filtration pretreatment device according to claim 3, characterized in that: The outer jacket (1) is provided with a discharge device (4), which includes a discharge port (41). The discharge port (41) is fixedly connected to the surface of one side of the outer jacket (1) and is located above the support (2).
5. The biogas slurry filtration pretreatment device according to claim 4, characterized in that: The surface of the discharge port (41) is threaded with a leak-proof cover (42), which is located on one side of the outer casing (1).
6. The biogas slurry filtration pretreatment device according to claim 5, characterized in that: An adjusting plate (43) is fixedly connected to the surface of the leak-proof cover (42), and the adjusting plate (43) is located on one side of the outer cover (1).
7. The biogas slurry filtration pretreatment device according to claim 6, characterized in that: The inner surface of the adjusting plate (43) is slidably connected to a rotating rod (44), and the surface of the push plate (35) is fixedly connected to a push rod (45), which is adapted to the discharge port (41).