A portable biogas slurry fertilization device for farmland
By using a V-shaped tube and filter plate to filter biogas slurry in a portable biogas slurry fertilization device, the problem of impurities clogging the spray head is solved, achieving efficient fertilization and convenient filter maintenance.
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
- 2025-05-21
- Publication Date
- 2026-05-26
AI Technical Summary
When biogas slurry is used for fertilization in farmland, impurities can easily accumulate in the discharge pipe, causing the spray head to become clogged and affecting fertilization efficiency.
A portable biogas slurry fertilization device was designed, which includes a transport vehicle and a filter assembly. It uses a V-shaped pipe and a filter plate to filter biogas slurry, and impurities are discharged through a sewage pipe to avoid clogging. The filter screen is easy to replace and clean through a locking block and a limiting groove.
It effectively prevents spray head clogging, improves fertilization progress, and simplifies the maintenance process of the filter screen.
Smart Images

Figure CN224267397U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural fertilization devices, specifically a portable biogas slurry fertilization device for farmland. Background Technology
[0002] Biogas slurry is a liquid-phase product derived from the anaerobic fermentation process in biogas engineering. Organic matter plays a crucial role in this process; crop straw and livestock manure are common sources of organic raw materials for biogas projects. Under anaerobic conditions, these organic materials are gradually converted into biogas and biogas slurry through microbial decomposition and metabolism. Biogas slurry has a complex and diverse composition. In terms of nutrients, it contains macronutrients such as nitrogen, phosphorus, and potassium, which are essential for plant growth. It also contains micronutrients such as zinc and iron, which, although present in smaller amounts, are equally important for healthy plant growth. Furthermore, biogas slurry contains up to 17 kinds of amino acids and bioactive substances such as active enzymes. These amino acids and active enzymes help improve the utilization value of biogas slurry and have broad application potential in various fields such as agricultural production.
[0003] When biogas slurry is applied to farmland, it is usually taken directly from inside the biogas slurry pond. Therefore, the biogas slurry will carry some fibrous impurities. During the process of applying biogas slurry fertilizer to farmland, the biogas slurry needs to be discharged through the discharge pipe. During the discharge process, the impurities inside the biogas slurry accumulate inside the discharge pipe, which can easily cause the spray head to be blocked, thus reducing the fertilization efficiency. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a portable biogas slurry fertilization device for farmland, including a transport vehicle, a transport tank installed inside the transport vehicle, a discharge pipe fixedly connected to the left end of the transport tank, and a filter assembly fixedly connected to the left end of the discharge pipe.
[0005] The filter assembly includes a flange one, with a sealing gasket snapped inside the flange one. A flange two is threaded to the left end of the flange one, and a V-tube is fixedly connected to the left end of the flange two. A drain pipe is fixedly connected to the bottom of the V-tube, and a sealing cap is threaded to the surface of the drain pipe. An externally threaded pipe is fixedly connected to the output end of the V-tube, and an internally threaded pipe is threaded to the surface of the externally threaded pipe. A limiting platform is fixedly connected to the inner wall of the externally threaded pipe, and a locking block is snapped inside the limiting platform. A filter plate is fixedly connected to the surface of the locking block. A limiting groove is formed on the inner wall of the externally threaded pipe, and a locking plate is snapped inside the limiting groove.
[0006] Through the above technical solution, during the spraying of biogas slurry using a V-shaped pipe, the biogas slurry, after being filtered through the filter plate, has its internal fixed substances fall into the V-shaped pipe through the filter plate and are discharged through the drain pipe. This avoids the fixed impurities inside the biogas slurry causing internal blockage during spraying, which would affect the fertilization progress. After fertilization is completed, the internal threaded pipe can be removed from the internal threaded pipe, and the clamping plate can be removed from the internal limiting groove. Since the clamping block is engaged inside the limiting platform, the filter screen can be removed from the internal threaded sleeve through the clamping block, facilitating the replacement and cleaning of the filter screen.
[0007] As a further improvement to the above solution, the sealing gasket is disposed between flange one and flange two.
[0008] With the above technical solution, the sealing gasket is placed between flange one and flange two, and the connection between flange one and flange two is sealed by the sealing gasket to prevent the leakage of biogas slurry at the connection point.
[0009] As a further improvement to the above solution, the top of the sewage pipe penetrates the inner wall of the V-shaped pipe.
[0010] With the above technical solution, the top of the sewage pipe penetrates the inner wall of the V-shaped pipe. During the sewage discharge process, the impurities located inside the V-shaped pipe can fall steadily to the bottom of the V-shaped pipe and into the sewage pipe. Afterwards, the sealing cap can be removed to facilitate the internal sewage discharge work.
[0011] As a further improvement to the above scheme, the number of limiting platforms is set to four, and the four limiting platforms are evenly distributed symmetrically on the inner wall of the external threaded tube at the top center. The filter plate is concentric with the external threaded tube.
[0012] Through the above technical solution, the limiting platform can stably engage the card block inside the external threaded pipe, while the filter plate located on the surface of the card block is stably fixed inside the external threaded pipe to perform biogas slurry filtration. The filter plate and the threaded sleeve are concentric, so that the threaded sleeve is located in the center position inside the external threaded sleeve, making the filtration more uniform.
[0013] As a further improvement to the above solution, the limiting groove extends through the top of the external threaded tube, and the clamping plate is located above the filter plate.
[0014] With the above technical solution, the limiting groove runs through the top of the external threaded tube, which facilitates the removal of the clamping plate. The clamping plate is located above the filter plate and limits the position of the filter plate, ensuring that the filter plate is not displaced by the biogas slurry spray during the biogas slurry fertilization process.
[0015] As a further improvement to the above solution, the top of the transport tank is threadedly connected to an inlet cap, the top of the internally threaded pipe is fixedly connected to a connecting pipe, and the output end of the connecting pipe is fixedly connected to a spray head.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This invention, by setting up a V-shaped pipe, allows the biogas slurry to be filtered through a filter plate during spraying. The fixed substances inside the biogas slurry fall into the V-shaped pipe through the filter plate and are discharged through the sewage pipe. This avoids the fixed impurities inside the biogas slurry from clogging the spray head during spraying and affecting the fertilization progress.
[0018] This utility model, by setting a locking block, allows the internal threaded tube to be removed from the inside of the external threaded tube after fertilization, and the locking plate to be removed from the inside of the limiting groove. Since the locking block is engaged inside the limiting platform, the filter screen can be removed from the inside of the external threaded sleeve through the locking block, which facilitates the replacement and cleaning of the filter screen. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the flange of this utility model;
[0021] Figure 3 This is a schematic diagram of the internal structure of the external threaded sleeve of this utility model;
[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;
[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the V-shaped tube of this utility model;
[0024] Figure 6 This is a schematic diagram of the overall structure of the filter plate of this utility model.
[0025] In the diagram: 1. Transport vehicle; 2. Transport tank; 3. Inlet cover; 4. Outlet pipe; 5. Filter assembly; 51. Flange 1; 52. Sealing gasket; 53. Flange 2; 54. V-tube; 55. Drain pipe; 56. Sealing cap; 57. External threaded pipe; 58. Internal threaded pipe; 59. Limiting platform; 510. Clamping block; 511. Filter plate; 512. Limiting groove; 513. Clamping plate; 6. Connecting pipe; 7. Spray head. Detailed Implementation
[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0027] Example 1:
[0028] Please combine Figure 1-5 This embodiment of a portable biogas slurry fertilization device for farmland includes a transport vehicle 1, a transport tank 2 installed inside the transport vehicle 1, a discharge pipe 4 fixedly connected to the left end of the transport tank 2, and a filter assembly 5 fixedly connected to the left end of the discharge pipe 4.
[0029] The filter assembly 5 includes a flange 51, a sealing gasket 52 is snapped into the flange 51, a flange 53 is threaded to the left end of the flange 51, a V-tube 54 is fixedly connected to the left end of the flange 53, a drain pipe 55 is fixedly connected to the bottom of the V-tube 54, a sealing cap 56 is threaded to the surface of the drain pipe 55, an externally threaded pipe 57 is fixedly connected to the output end of the V-tube 54, an internally threaded pipe 58 is threaded to the surface of the externally threaded pipe 57, a limiting platform 59 is fixedly connected to the inner wall of the externally threaded pipe 57, a locking block 510 is snapped into the limiting platform 59, a filter plate 511 is fixedly connected to the surface of the locking block 510, a limiting groove 512 is opened in the inner wall of the externally threaded pipe 57, and a locking plate 513 is snapped into the limiting groove 512.
[0030] The sealing gasket 52 is placed between flange 1 51 and flange 2 53.
[0031] The top of the drain pipe 55 penetrates the inner wall of the V-shaped pipe 54.
[0032] There are four limiting platforms 59. The four limiting platforms 59 are symmetrically and evenly distributed on the inner wall of the external threaded tube 57. The filter plate 511 is concentric with the external threaded tube 57.
[0033] The limiting groove 512 passes through the top of the external threaded tube 57, and the clamping plate 513 is located above the filter plate 511.
[0034] The top of the transport tank 2 is threadedly connected to an inlet cap 3, and the top of the internally threaded pipe 58 is fixedly connected to a connecting pipe 6. The output end of the connecting pipe 6 is fixedly connected to a spray head 7.
[0035] The implementation principle of a portable biogas slurry fertilization device for farmland in this embodiment is as follows: When spraying biogas slurry fertilizer in farmland, firstly, flange 1 51 and flange 2 53 are fixed with bolts, and then the internal threaded pipe 58 is threaded onto the surface of the external threaded pipe 57. The pump inside the transport tank 2 is started to transport the biogas slurry inside the transport tank 2 through the discharge pipe 4 to the inside of the V-shaped pipe 54. After passing through the V-shaped pipe 54, it enters the inside of the external threaded pipe 57, is filtered, and then reaches the inside of the connecting pipe 6. It is then transported through the connecting pipe 6 to the inside of the spray head 7 and sprayed through the spray head 7. During the spraying process of biogas slurry through the V-shaped pipe 54, after the biogas slurry passes through the filter plate 511, the fixed substances inside fall into the inside of the V-shaped pipe 54 through the filter plate 511 and are discharged through the sewage pipe 55, so as to avoid the fixed impurities inside the biogas slurry from clogging the spray head 7 during the spraying process and affecting the fertilization progress.
[0036] After fertilization is completed, the internally threaded tube 58 is removed from the inside of the externally threaded tube 57 via the locking block 510, and the locking plate 513 is removed from the inside of the limiting groove 512. Since the locking block 510 is engaged inside the limiting platform 59, the filter screen can be removed from the inside of the externally threaded sleeve via the locking block 510, facilitating the replacement and cleaning of the filter screen. The above embodiments are only preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A portable biogas slurry applicator for agricultural fields, characterized by: The vehicle includes a transport vehicle (1), which has a transport tank (2) installed inside. The left end of the transport tank (2) is fixedly connected to a discharge pipe (4), and the left end of the discharge pipe (4) is fixedly connected to a filter assembly (5). The filter assembly (5) includes a flange one (51), a sealing gasket (52) is snapped into the flange one (51), a flange two (53) is threaded to the left end of the flange one (51), a V-shaped tube (54) is fixedly connected to the left end of the flange two (53), a drain pipe (55) is fixedly connected to the bottom of the V-shaped tube (54), a sealing cap (56) is threaded to the surface of the drain pipe (55), an external threaded tube (57) is fixedly connected to the output end of the V-shaped tube (54), an internal threaded tube (58) is threaded to the surface of the external threaded tube (57), a limiting platform (59) is fixedly connected to the inner wall of the external threaded tube (57), a locking block (510) is snapped into the limiting platform (59), a filter plate (511) is fixedly connected to the surface of the locking block (510), a limiting groove (512) is opened on the inner wall of the external threaded tube (57), and a locking plate (513) is snapped into the limiting groove (512).
2. The portable biogas slurry applicator for agricultural field according to claim 1, characterized in that: The sealing gasket (52) is disposed between flange one (51) and flange two (53).
3. The portable biogas slurry applicator for agricultural field according to claim 1, characterized in that: The top of the drain pipe (55) penetrates the inner wall of the V-shaped pipe (54).
4. The portable biogas slurry fertilization device for farmland according to claim 1, characterized in that: The number of the limiting platform (59) is four. The four limiting platforms (59) are symmetrically and evenly distributed on the inner wall of the external threaded tube (57) at the top center. The filter plate (511) is concentric with the external threaded tube (57).
5. A portable biogas slurry fertilization device for farmland according to claim 1, characterized in that: The limiting groove (512) penetrates the top of the external threaded tube (57), and the clamping plate (513) is located above the filter plate (511).
6. A portable biogas slurry fertilization device for farmland according to claim 1, characterized in that: The top of the transport tank (2) is threadedly connected to an inlet cap (3), the top of the internally threaded pipe (58) is fixedly connected to a connecting pipe (6), and the output end of the connecting pipe (6) is fixedly connected to a spray head (7).