A device for separating and screening earthworm manure
By introducing a high-pressure air unclogging component into the earthworm castings separation device, the problem of mesh clogging was solved, enabling efficient separation and continuous screening of earthworm castings and soil, thus improving screening efficiency.
Patent Information
- Application Number
- CN202521254590.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-19
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-06-19
AI Technical Summary
The mesh of existing earthworm castings separation devices is easily clogged, leading to reduced screening efficiency and requiring the mesh to be cleaned, which affects the continuity of work.
A blockage-clearing assembly was designed, comprising an air pump, a high-pressure air tank, an exhaust valve, and a high-pressure jet nozzle. This assembly utilizes high-pressure air to instantly remove blockages of manure and soil, ensuring the continuity of the screening process.
This method achieves efficient separation of earthworm castings and soil, avoids interrupting screening due to mesh blockage, and improves screening efficiency.
Smart Images

Figure CN224673191U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of separation and screening, and more specifically, to a device for separating and screening earthworm castings. Background Technology
[0002] When raising earthworms, it is often necessary to separate the earthworms from their excrement. This is usually done using a tilted, barrel-shaped rotary screen. Since earthworm farming requires maintaining a certain level of humidity, the excrement to be screened is also moist. As a result, the mesh of the rotary screen often gets clogged, requiring the screening operation to be stopped for cleaning, which wastes time and reduces screening efficiency. Utility Model Content
[0003] To overcome the above shortcomings, this application provides an earthworm castings separation and screening device, which aims to improve the problem that the mesh of the rotating screen often gets clogged, requiring the screening operation to be stopped for cleaning, which wastes time and reduces screening efficiency.
[0004] This application provides an earthworm castings separation and screening device, including a rotating mesh screen and a blockage removal component. The blockage removal component includes an air pump, a high-pressure air tank, an exhaust valve, and a high-pressure jet nozzle. The air pump and the high-pressure air tank are both fixedly connected to one side of the rotating mesh screen. The output end of the air pump is connected to the high-pressure air tank. The exhaust valve is located on the pipe connecting the high-pressure air tank and the high-pressure jet nozzle. The high-pressure jet nozzle is connected to the upper part of the rotating mesh screen, and the output end of the high-pressure jet nozzle faces the rotating mesh screen.
[0005] In one specific implementation, the rotating mesh screen includes a frame, a motor, and a mesh drum. The mesh drum is rotatably connected to the frame, the motor is fixedly connected to one side of the rotating mesh screen, and the output end of the motor is drivenly connected to the mesh drum.
[0006] In one specific implementation, a brush roller is provided on one side of the frame, and the brush roller is close to the outside of the mesh barrel.
[0007] In one specific implementation, the motor output end is provided with a first gear, the brush roller is provided with a second gear, and the mesh barrel is provided with a gear ring. The first gear is meshed with the second gear, and the second gear is meshed with the gear ring.
[0008] In one specific implementation, a protective plate is provided on one side of the frame where the brush roller is located.
[0009] In one specific implementation, an air pipe is provided between the high-pressure air tank and the high-pressure jet head, and the exhaust valve is located on one side of the air pipe.
[0010] In one specific implementation, the high-pressure jet head includes a main pipe and a blow-blocking pipe, with multiple blow-blocking pipes spaced apart. The main pipe is fixedly connected to the frame, and the blow-blocking pipes are connected to the main pipe.
[0011] In one specific implementation, a support is provided at the bottom of the high-pressure gas tank, and the support is fixedly connected to one side of the frame.
[0012] Beneficial Effects: This application provides an earthworm castings separation and screening device. Earthworms and castings are placed inside a rotating mesh screen. The rotating mesh screen rotates and screens the earthworms and castings. The castings fall through the mesh of the rotating mesh screen, while the earthworms are guided to one side of the rotating mesh screen along the screen plate, achieving separation between earthworms and castings. At the same time, when the mesh of the rotating mesh screen is blocked, an air pump continuously delivers outside air to a high-pressure air tank. The high-pressure air tank delivers air to an exhaust valve, which instantly discharges the high-pressure air. The discharged high-pressure air is delivered to a high-pressure jet nozzle, which instantly sprays high-pressure air onto the mesh of the rotating mesh screen, impacting and removing the castings blocking the mesh, achieving a clearing effect. Throughout the entire process, a high-pressure system is set up to blow away the castings blocking the mesh using high-pressure air, thus eliminating the need to stop the screening operation and allowing for continuous screening of earthworms and castings, improving screening efficiency. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the earthworm castings separation and screening device provided in the embodiments of this application.
[0015] Figure 2 This is a partial structural schematic diagram of the rotating mesh screen provided in the embodiments of this application.
[0016] Figure 3 A partial structural diagram of the mesh bucket provided in the embodiments of this application.
[0017] Figure 4 A partial structural schematic diagram of the unblocking component provided in the embodiments of this application.
[0018] In the diagram: 100-Rotating mesh screen; 110-Frame; 111-Brush roller; 112-Second gear; 116-Protective plate; 120-Motor; 121-First gear; 130-Mesh barrel; 131-Gear ring; 200-Unblocking component; 210-Air pump; 220-High-pressure air tank; 221-Air pipe; 223-Support; 230-Exhaust valve; 240-High-pressure jet nozzle; 241-Main pipe; 242-Blocking pipe. Detailed Implementation
[0019] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.
[0020] Please see Figure 1 This application provides an earthworm castings separation and screening device, including a rotating mesh screen 100 and a blockage removal component 200.
[0021] Please see Figures 1-4 The unblocking assembly 200 includes an air pump 210, a high-pressure air tank 220, an exhaust valve 230, and a high-pressure jet nozzle 240. Both the air pump 210 and the high-pressure air tank 220 are fixedly connected to one side of the rotating mesh screen 100. It should be noted that the exhaust valve 230 provides intermittent exhaust, or a pressure relief valve can be used. The air pump 210 continuously supplies air to the high-pressure air tank 220, increasing the internal pressure. The pressure relief valve then releases the high-pressure air instantly. The output end of 210 is connected to the high-pressure air tank 220. The exhaust valve 230 is installed on the pipe connecting the high-pressure air tank 220 and the high-pressure jet head 240. The high-pressure jet head 240 is connected to the upper part of the rotating mesh screen 100. The output end of the high-pressure jet head 240 faces the rotating mesh screen 100. The rotating mesh screen 100 includes a frame 110, a motor 120, and a mesh barrel 130. The mesh barrel 130 is rotatably connected to the frame 110. The motor 120 is fixed to one side of the rotating mesh screen 100. The motor 120 output is connected to the mesh drum 130. A brush roller 111 is installed on one side of the frame 110, near the outside of the mesh drum 130. A first gear 121 is installed at the output of the motor 120, and a second gear 112 is installed on the brush roller 111. A gear ring 131 is installed on the mesh drum 130. The first gear 121 and the second gear 112 are meshed together, and the second gear 112 is meshed with the gear ring 131. The frame 110 is located on one side of the brush roller 111. A protective plate 116, an air pipe 221 is provided between the high-pressure air tank 220 and the high-pressure jet head 240, an exhaust valve 230 is provided on one side of the air pipe 221, the high-pressure jet head 240 includes a main pipe 241 and a blow-block pipe 242, multiple blow-block pipes 242 are provided at intervals, the main pipe 241 is fixedly connected to the frame 110, the blow-block pipe 242 is connected to the main pipe 241, a bracket 223 is provided at the bottom of the high-pressure air tank 220, and the bracket 223 is fixedly connected to one side of the frame 110.
[0022] The working principle of this earthworm castings separation and screening device is as follows: Earthworms and castings are placed inside a rotating mesh screen 100, which includes a mesh barrel 130. The rotating mesh screen 100 is mounted on a frame 110, which is equipped with a protective plate 116. The rotating mesh screen 100 rotates and screens the earthworms and castings. The castings fall through the mesh of the rotating mesh screen 100, while the earthworms are guided to one side of the rotating mesh screen 100 along the screen plate, thus achieving separation between the earthworms and the castings. A motor 120 drives the rotating mesh screen 100 to rotate through a gear 121 meshing with a gear ring 131 on the mesh barrel 130. A brush roller 111 is also provided on the frame 110, which is driven by a second gear 112. At the same time, when the mesh of the rotating mesh screen 100 is blocked, an air pump 210 continuously delivers outside air into a high-pressure air tank 220. The high-pressure air tank 220 is connected via an air pipe 221 and is supported by a bracket 223. The high-pressure air tank 220 delivers air into the exhaust valve 230, which instantly discharges the high-pressure air. The discharged high-pressure air is then delivered into the high-pressure jet head 240. The high-pressure jet head 240 includes a main pipe 241 and a blow-off pipe 242. The high-pressure jet head 240 instantly sprays high-pressure air onto the mesh of the rotating mesh screen 100, impacting and removing the manure and soil blocking the mesh. The unblocking component 200 consists of an air pump 210, a high-pressure air tank 220, an exhaust valve 230, and a high-pressure jet head 240, achieving the effect of unblocking.
[0023] Throughout the process, a high-pressure system is set up to blow away the manure and soil blocking the mesh with high-pressure air, so that the screening operation can be continuously screened without interrupting the screening operation, thus improving the screening efficiency.
[0024] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
Claims
1. A device for separating and screening earthworm castings, characterized in that, include Rotate the mesh screen (100); The unblocking assembly (200) includes an air pump (210), a high-pressure air tank (220), an exhaust valve (230), and a high-pressure jet nozzle (240). The air pump (210) and the high-pressure air tank (220) are fixedly connected to one side of the rotating mesh screen (100). The output end of the air pump (210) is connected to the high-pressure air tank (220). The exhaust valve (230) is located on the pipe connecting the high-pressure air tank (220) and the high-pressure jet nozzle (240). The high-pressure jet nozzle (240) is connected to the upper part of the rotating mesh screen (100), and the output end of the high-pressure jet nozzle (240) faces the rotating mesh screen (100).
2. The earthworm castings separation and screening device according to claim 1, characterized in that, The rotating mesh screen (100) includes a frame (110), a motor (120) and a mesh barrel (130). The mesh barrel (130) is rotatably connected to the frame (110), the motor (120) is fixedly connected to one side of the rotating mesh screen (100), and the output end of the motor (120) is drivenly connected to the mesh barrel (130).
3. The earthworm castings separation and screening device according to claim 2, characterized in that, A brush roller (111) is provided on one side of the frame (110), and the brush roller (111) is close to the outside of the net barrel (130).
4. The earthworm castings separation and screening device according to claim 3, characterized in that, The motor (120) output end is provided with a first gear (121), the brush roller (111) is provided with a second gear (112), and the mesh barrel (130) is provided with a gear ring (131). The first gear (121) is meshed with the second gear (112), and the second gear (112) is meshed with the gear ring (131).
5. The earthworm castings separation and screening device according to claim 3, characterized in that, The frame (110) is provided with a protective plate (116) on one side of the brush roller (111).
6. The earthworm castings separation and screening device according to claim 1, characterized in that, An air pipe (221) is provided between the high-pressure air tank (220) and the high-pressure jet head (240), and the exhaust valve (230) is located on one side of the air pipe (221).
7. The earthworm castings separation and screening device according to claim 2, characterized in that, The high-pressure jet head (240) includes a main pipe (241) and a blow-block pipe (242). Multiple blow-block pipes (242) are spaced apart. The main pipe (241) is fixedly connected to the frame (110), and the blow-block pipes (242) are connected to the main pipe (241).
8. The earthworm castings separation and screening device according to claim 2, characterized in that, The high-pressure gas tank (220) is provided with a bracket (223) at the bottom, and the bracket (223) is fixedly connected to one side of the frame (110).