Raw material pretreatment device for biogas digester
By designing a mobile biogas digester raw material pretreatment device, which uses belt conveyor and motor linkage components, automated feeding and efficient crushing and grinding are achieved, solving the problems of inconvenient movement and complicated operation of traditional equipment, and improving biogas fermentation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional biogas digester raw material pretreatment equipment is bulky, fixed in place, inconvenient to move, labor-intensive, poses safety hazards, and is complex to operate, which affects biogas fermentation efficiency.
A device comprising a moving frame, a feeding mechanism, and a raw material pretreatment mechanism was designed. It employs a belt conveyor assembly, a motor linkage assembly, and crushing and grinding equipment to achieve automated feeding and efficient crushing and grinding.
It has achieved automated feeding of raw materials, reduced manual labor intensity, improved work efficiency, and ensured uniform particle size of raw materials, thereby improving biogas fermentation efficiency.
Smart Images

Figure CN224072175U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of raw material pretreatment technology, specifically to a raw material pretreatment device for biogas digesters. Background Technology
[0002] In biogas production, raw material pretreatment is a crucial step. Raw materials such as crop straw and livestock manure typically need to be crushed and ground to achieve suitable particle size and improve biogas fermentation efficiency. However, traditional raw material pretreatment methods often suffer from low efficiency and complex operation. Especially in rural areas, due to site limitations and a lack of specialized equipment, raw material pretreatment has become a major bottleneck for the promotion and application of biogas.
[0003] Traditional raw material pretreatment equipment is usually bulky, fixed in place, and inconvenient to move and adjust. In addition, the feeding process often requires manual operation, which is labor-intensive and poses safety hazards. Therefore, a raw material pretreatment device for biogas digesters is proposed to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a pretreatment device for biogas digester raw materials, which has advantages such as saving manpower and simple operation, and solves the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a pretreatment device for raw materials in a biogas digester, comprising a mobile frame, with wheels at the bottom of the mobile frame, a raw material pretreatment mechanism fixedly connected to the top of the mobile frame, and a feeding mechanism on one side of the mobile frame.
[0006] Furthermore, the feeding mechanism includes a fixed frame fixedly connected inside the movable frame. A first motor is provided on one side of the fixed frame, and a belt conveyor assembly is rotatably connected inside the fixed frame. A first linkage assembly is provided on the side of the first motor near the fixed frame. A baffle is fixedly connected to the outer surface of the belt conveyor assembly. A roller is rotatably connected inside the fixed frame. A cleaning brush is fixedly connected to the outer surface of the roller. A second linkage assembly is provided on the outer surface of the roller connecting shaft.
[0007] Furthermore, the fixing frame has an inclined surface inside.
[0008] Furthermore, a handrail is fixedly connected to the top of the mobile frame.
[0009] Furthermore, the raw material pretreatment mechanism includes a second motor fixedly connected to the top of the moving frame, a third linkage component provided at one end of the second motor, a reducer fixedly connected to the top of the moving frame, a fourth linkage component provided at one end of the reducer, a crushing chamber fixedly connected inside the moving frame, a rotating shaft rotatably connected inside the crushing chamber, a crushing blade fixedly connected to the outer surface of the rotating shaft, a grinding plate fixedly connected inside the crushing chamber, and an inclined groove opened inside the grinding plate.
[0010] Furthermore, a feeding plate is fixedly connected to one end of the crushing chamber, and an opening is provided on one side of the crushing chamber.
[0011] Furthermore, a fifth linkage component is provided at one end of the crushing chamber, and a limit plate is rotatably connected inside the crushing chamber.
[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0013] 1. This pretreatment device for biogas digester raw materials adopts a belt conveyor assembly and baffle design for the feeding mechanism. Together with the first motor and the first linkage assembly, it realizes the automated feeding of raw materials, reduces the intensity of manual labor, and improves work efficiency. At the same time, the design of the inclined surface, rotating roller and cleaning brush allows the raw materials to be shoveled onto the inclined surface and then onto the belt conveyor assembly, avoiding the accumulation and blockage of raw materials.
[0014] 2. This raw material pretreatment device for biogas digesters uses a second motor, reducer, crusher blades, and grinding plates as components. Through the transmission of the third and fourth linkage components, efficient crushing and grinding of raw materials are achieved. The reasonable design of the crushing and grinding plates ensures uniform particle size of the raw materials and improves biogas fermentation efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the raw material pretreatment mechanism of this utility model;
[0017] Figure 3 This is a schematic diagram of the feeding mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram from another perspective of the present invention.
[0019] In the diagram: 1. Moving frame, 2. Moving wheels, 3. Handrail, 4. Raw material pretreatment mechanism, 401. Second motor, 402. Third linkage component, 403. Reducer, 404. Fourth linkage component, 405. Fifth linkage component, 406. Limiting plate, 407. Crushing chamber, 408. Feeding plate, 409. Rotating shaft, 410. Crushing blade, 411. Grinding plate, 5. Feeding mechanism, 501. Fixed frame, 502. First motor, 503. First linkage component, 504. Belt conveyor component, 505. Baffle, 506. Inclined surface, 507. Second linkage component, 508. Roller, 509. Cleaning brush. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4 This embodiment of a biogas digester raw material pretreatment device includes a mobile frame 1. The bottom of the mobile frame 1 is equipped with casters 2, and a drive mechanism can be provided to the casters 2 to make them rotate, saving manpower to push the large equipment. A raw material pretreatment mechanism 4 is fixedly connected to the top of the mobile frame 1, and a feeding mechanism 5 is provided on one side of the mobile frame 1.
[0022] The feeding mechanism 5 includes a fixed frame 501 fixedly connected inside the movable frame 1. A first motor 502 is installed on one side of the fixed frame 501. A belt conveyor assembly 504 is rotatably connected inside the fixed frame 501. The belt conveyor assembly 504 consists of two belt rollers and a conveyor belt. A first linkage assembly 503 is installed on the side of the first motor 502 near the fixed frame 501. A baffle 505 is fixedly connected to the outer surface of the belt conveyor assembly 504. A roller 508 is rotatably connected inside the fixed frame 501. A cleaning brush 509 is fixedly connected to the outer surface of the roller 508. A second linkage assembly 507 is installed on the outer surface of the connecting shaft of the roller 508. An inclined surface 506 is opened inside the fixed frame 501. A handrail 3 is fixedly connected to the top of the movable frame 1.
[0023] The feeding mechanism 5 adopts the design of belt conveyor component 504 and baffle 505, and together with the first motor 502 and the first linkage component 503, it realizes the automated feeding of raw materials, reduces the intensity of manual labor, and improves work efficiency. At the same time, the design of inclined surface 506, rotating roller 508 and cleaning brush 509 allows the raw materials to be shoveled onto inclined surface 506 and then onto belt conveyor component 506, avoiding raw material accumulation and blockage.
[0024] Secondly, the raw material pretreatment mechanism 4 includes a second motor 401 fixedly connected to the top of the movable frame 1. A third linkage component 402 is installed at one end of the second motor 401. A reducer 403 is fixedly connected to the top of the movable frame 1. A fourth linkage component 404 is installed at one end of the reducer 403. A crushing chamber 407 is fixedly connected inside the movable frame 1. A rotating shaft 409 is rotatably connected inside the crushing chamber 407. A crushing blade 410 is fixedly connected to the outer surface of the rotating shaft 409. A grinding plate 411 is fixedly connected inside the crushing chamber 407, and the grinding plate 411 has an inclined groove inside. A feeding plate 408 is fixedly connected to one end of the crushing chamber 407, and an opening is provided on one side of the crushing chamber 407.
[0025] Additionally, a fifth linkage component 405 is provided at one end of the crushing chamber 407, and a limit plate 406 is rotatably connected inside the crushing chamber 407. The first linkage component 503, the second linkage component 507, the third linkage component 402, and the fourth linkage component 404 can all be composed of pulleys and belts or sprockets and chains, as long as the linkage effect can be achieved.
[0026] The raw material pretreatment mechanism 4 employs components such as a second motor 401, a reducer 403, a crusher 410, and a grinding plate 411. Through the transmission of the third linkage component 402 and the fourth linkage component 404, it achieves efficient crushing and grinding of the raw materials. The rational design of the crusher 410 and the grinding plate 411 ensures uniform particle size of the raw materials, improving biogas fermentation efficiency. This device can achieve processing while moving, greatly enhancing production efficiency.
[0027] The working principle of the above embodiments is as follows:
[0028] (1) The feeding mechanism 5 of the biogas digester raw material pretreatment device adopts the design of belt conveyor component 504 and baffle 505, and is combined with the first motor 502 and the first linkage component 503 to realize the automated feeding of raw materials, reduce the intensity of manual labor and improve work efficiency. At the same time, the design of the inclined surface 506, the rotating roller 508 and the cleaning brush 509 enables the raw materials to be shoveled onto the inclined surface 506 and then onto the belt conveyor component 506, avoiding the accumulation and blockage of raw materials.
[0029] (2) The raw material pretreatment device for biogas digesters adopts components such as a second motor 401, a reducer 403, a crusher 410 and a grinding plate 411. Through the transmission of the third linkage component 402 and the fourth linkage component 404, the raw material is efficiently crushed and ground. The reasonable design of the crusher 410 and the grinding plate 411 ensures that the raw material particle size is uniform and improves the biogas fermentation efficiency.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pretreatment device for biogas digester raw materials, comprising a movable frame (1), characterized in that: The bottom of the mobile frame (1) is provided with a moving wheel (2), the top of the mobile frame (1) is fixedly connected with a raw material pretreatment mechanism (4), and a feeding mechanism (5) is provided on one side of the mobile frame (1). The feeding mechanism (5) includes a fixed frame (501) fixedly connected inside the movable frame (1). A first motor (502) is provided on one side of the fixed frame (501). A belt conveyor assembly (504) is rotatably connected inside the fixed frame (501). A first linkage assembly (503) is provided on the side of the first motor (502) near the fixed frame (501). A baffle (505) is fixedly connected to the outer surface of the belt conveyor assembly (504). A roller (508) is rotatably connected inside the fixed frame (501). A cleaning brush (509) is fixedly connected to the outer surface of the roller (508). A second linkage assembly (507) is provided on the outer surface of the roller (508) connecting shaft.
2. The device for pretreatment of raw materials for biogas digesters according to claim 1, characterized in that: The fixing frame (501) has an inclined surface (506) inside.
3. The device for pretreatment of raw materials for biogas digesters according to claim 1, characterized in that: The top of the mobile frame (1) is fixedly connected to a handrail (3).
4. The device for pretreatment of raw materials for biogas digesters according to claim 1, characterized in that: The raw material pretreatment mechanism (4) includes a second motor (401) fixedly connected to the top of the mobile frame (1), a third linkage component (402) is provided at one end of the second motor (401), a reducer (403) is fixedly connected to the top of the mobile frame (1), a fourth linkage component (404) is provided at one end of the reducer (403), a crushing chamber (407) is fixedly connected inside the mobile frame (1), a rotating shaft (409) is rotatably connected inside the crushing chamber (407), a crushing blade (410) is fixedly connected to the outer surface of the rotating shaft (409), a grinding plate (411) is fixedly connected inside the crushing chamber (407), and a slanted groove is opened inside the grinding plate (411).
5. A pretreatment device for biogas digester raw materials according to claim 4, characterized in that: The crushing chamber (407) is fixedly connected to a feeding plate (408) at one end, and an opening is provided on one side of the crushing chamber (407).
6. The device for pretreatment of raw materials for biogas digesters according to claim 4, characterized in that: The crushing chamber (407) is provided with a fifth linkage component (405) at one end, and a limit plate (406) is rotatably connected inside the crushing chamber (407).