Bio-fertilizer screening device

By using a soft steel belt to strike the screen in the bio-fertilizer screening device, combined with a dust cover and dust suction pipe system, the problem of dust diffusion is solved, achieving the dual effects of screen clogging prevention and environmental protection.

CN224208476UActive Publication Date: 2026-05-08INNER MONGOLIA VOCATIONAL COLLEGE OF COMMERCE & TRADE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INNER MONGOLIA VOCATIONAL COLLEGE OF COMMERCE & TRADE
Filing Date
2025-05-12
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing bio-fertilizer screening devices generate dust that drifts into the surrounding environment when the screen is tapped to prevent clogging, resulting in poor environmental performance.

Method used

A bio-fertilizer screening device was designed, which uses a soft steel belt to beat the screen to prevent clogging, and collects dust through a dust cover and a dust suction pipe system to prevent dust from spreading. A bag filter is used for dust removal.

Benefits of technology

It effectively prevents screen clogging while avoiding dust pollution to the environment, thus improving environmental friendliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of screening devices, in particular to a bio-fertilizer screening device which comprises a connecting box, two supporting plates are fixedly connected to the connecting box, a long shaft is rotatably connected between the two supporting plates, a plurality of soft steel belts are fixedly connected to the long shaft, and a dust cover is fixedly connected between the two supporting plates. The dust cover is fixedly connected with a plurality of first dust suction pipes, the top ends of the first dust suction pipes are fixedly connected with the same second dust suction pipe, one end of the second dust suction pipe is fixedly connected with a flange, the connecting box is rotationally connected with a supporting shaft, the supporting shaft is fixedly connected with a connecting frame, and the connecting frame is provided with a plurality of screens. A driving structure is arranged on one supporting plate; in the using process, the screen mesh can be knocked to prevent the screen mesh from being blocked, meanwhile, the situation that dust generated in the knocking process drifts to the surrounding environment to pollute the environment can be avoided, and therefore the environmental friendliness of use is improved.
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Description

Technical Field

[0001] This utility model relates to a screening device, specifically a biological fertilizer screening device, and belongs to the technical field of screening devices. Background Technology

[0002] During the production of bio-fertilizers, impurities may be mixed in, such as incompletely crushed raw materials, soil particles, and metal scraps. Screening devices can effectively intercept and remove these impurities, improving product purity and preventing impurities from adversely affecting crop growth. A drum screen can be used for screening. Generally, to prevent screen clogging, the drum screen is continuously tapped during rotation. This tapping causes the screen to vibrate, effectively reducing the chance of clogging.

[0003] However, while tapping can prevent the screen from clogging, it also generates a certain amount of dust, which will drift directly into the surrounding environment, thus causing pollution and resulting in poor environmental friendliness. Utility Model Content

[0004] The purpose of this utility model is to provide a biological fertilizer screening device to solve the above problems. During use, it can not only knock on the screen to prevent the screen from clogging, but also prevent the dust generated during the knocking process from drifting into the surrounding environment and causing pollution, thereby improving the environmental friendliness of the device.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a biological fertilizer screening device, comprising a connecting box, a striking structure on the connecting box, the striking structure including a support plate and a long shaft, two support plates fixedly connected to the connecting box, the two support plates rotatably connected to the same long shaft, multiple soft steel strips fixedly connected to the long shaft, a dust cover fixedly connected between the two support plates, multiple first suction pipes fixedly connected to the dust cover, the top ends of the multiple first suction pipes fixedly connected to the same second suction pipe, a flange fixedly connected to one end of the second suction pipe, a support shaft rotatably connected to the connecting box, a connecting frame fixedly connected to the support shaft, multiple screens installed on the connecting frame, and a driving structure on one of the support plates.

[0006] Preferably, the multiple soft steel strips located on the same side of the long axis are linearly equidistantly distributed, and the multiple first suction tubes are linearly equidistantly distributed.

[0007] Preferably, the axis of the support shaft and the center of the connecting frame are on the same straight line, and the plurality of screens are distributed in a circumferential array about the center of the connecting frame.

[0008] Preferably, a support frame is fixedly connected to the bottom of the connecting box, and the connecting box is set at an angle.

[0009] Preferably, the drive structure includes a motor and a first pulley, wherein the motor is mounted on one of the support plates, the first pulley is fixedly connected to the output shaft of the motor, the second pulley is fixedly connected to the support shaft, and a first belt is wound between the first pulley and the second pulley.

[0010] Preferably, a connecting shaft is rotatably connected to one of the support plates, a third pulley is fixedly connected to the connecting shaft, a second belt is wound between the third pulley and the second pulley, a first gear is fixedly connected to the connecting shaft, and a second gear is fixedly connected to the long shaft, with the first gear and the second gear meshing.

[0011] Preferably, a guide sleeve is fixedly connected to one end of the connecting frame, and a feed hopper is fixedly connected to the connecting box, with the bottom end of the feed hopper extending into the interior of the guide sleeve.

[0012] Preferably, two support rods are fixedly connected to the connecting box, and the top ends of the two support rods are fixedly connected to the same feed hopper.

[0013] Preferably, a hopper is fixedly connected to the connecting box, and one end of the hopper extends to the outside of the connecting box.

[0014] Preferably, the connecting box has two guide plates fixedly connected inside, and the bottom of the connecting box has a discharge port. The two guide plates are symmetrically distributed about the middle of the discharge port.

[0015] The beneficial effects of this utility model are as follows: During use, the air inlet pipe of the bag filter can be connected to the second suction pipe through a flange. During the screening of bio-fertilizer, the drive structure drives the support shaft to rotate, which in turn drives the connecting frame to rotate. The rotating connecting frame, in turn, drives multiple screens to rotate. Since the multiple screens are inclined, the bio-fertilizer moves from one end of the screen to the other as the screens rotate. In this process, the bio-fertilizer can be screened through the screens. Furthermore, while the drive structure drives the support shaft to rotate, it also drives the long shaft to rotate in the opposite direction. The rotation of the long shaft drives multiple flexible... As the steel belts rotate, multiple flexible steel belts strike the screen, preventing clogging. Because the flexible steel belts and the screen rotate in opposite directions, the striking effect is enhanced. Dust generated during this process is blocked by a dust cover, and then, under the action of the bag filter, the dust enters multiple first suction pipes from inside the dust cover, then enters the second suction pipes, and finally enters the bag filter for dust removal. This prevents dust generated during the striking process from scattering into the surrounding environment and causing pollution, effectively improving the environmental friendliness of the system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0018] Figure 3 This is a schematic diagram of the connection structure between the long shaft and the soft steel strip of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the connecting frame and the guide sleeve of this utility model.

[0020] In the diagram: 1. Connecting box; 2. Hammering structure; 201. Support plate; 202. Long shaft; 203. Soft steel belt; 204. Dust cover; 205. First suction pipe; 206. Second suction pipe; 207. Flange; 3. Drive structure; 301. Motor; 302. First pulley; 303. First belt; 304. Second pulley; 305. Second belt; 306. Third pulley; 307. Connecting shaft; 308. First gear; 309. Second gear; 4. Support shaft; 5. Connecting frame; 6. Screen; 7. Feed hopper; 8. Support rod; 9. Guide sleeve; 10. Discharge hopper; 11. Support frame; 12. Guide plate; 13. Discharge port. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 As shown, a biological fertilizer screening device includes a connecting box 1. The connecting box 1 is provided with a striking structure 2. The striking structure 2 includes a support plate 201 and a long shaft 202. Two support plates 201 are fixedly connected to the connecting box 1. The two support plates 201 are rotatably connected to the same long shaft 202. Multiple soft steel strips 203 are fixedly connected to the long shaft 202. A dust cover 204 is fixedly connected between the two support plates 201. Multiple first suction pipes 205 are fixedly connected to the dust cover 204. The top ends of the multiple first suction pipes 205 are fixedly connected to the same second suction pipe 206. One end of the second suction pipe 206 is fixedly connected to a flange 207. A support shaft 4 is rotatably connected to the connecting box 1. The axis of the support shaft 4 and the center of the connecting frame 5 are on the same straight line. A connecting frame 5 is fixedly connected to the support shaft 4. Multiple screens 6 are installed on the connecting frame 5. One of the support plates 201 is provided with a driving structure 3.

[0023] As a technical optimization of this utility model, the multiple soft steel strips 203 located on the same side of the long axis 202 are linearly and equidistantly distributed, so that the screen 6 can be comprehensively struck by the multiple soft steel strips 203. The multiple first dust suction pipes 205 are linearly and equidistantly distributed, so that dust in different parts inside the dust cover 204 can be effectively sucked away.

[0024] As a technical optimization of this utility model, the multiple screens 6 are arranged in a circular array about the center of the connecting frame 5. By setting multiple screens 6, it is possible to replace one screen 6 individually when it is damaged, thereby saving the cost of use.

[0025] As a technical optimization of this utility model, the bottom end of the connecting box 1 is fixedly connected to a support frame 11, so the connecting box 1 can be supported by the support frame 11. The connecting box 1 is set at an inclination, so the screen 6 can be in an inclination state, so that the bio-fertilizer can flow from one end of the screen 6 to the other end of the screen 6 under the action of gravity during the rotation of the screen 6.

[0026] As a technical optimization of this utility model, the drive structure 3 includes a motor 301 and a first pulley 302. The motor 301 is mounted on one of the support plates 201. The first pulley 302 is fixedly connected to the output shaft of the motor 301. The second pulley 304 is fixedly connected to the support shaft 4. A first belt 303 is wound between the first pulley 302 and the second pulley 304. Therefore, the support shaft 4 can be rotated by controlling the output shaft of the motor 301, thereby causing the multiple screens 6 to rotate.

[0027] As a technical optimization of this utility model, a connecting shaft 307 is rotatably connected to one of the support plates 201. A third pulley 306 is fixedly connected to the connecting shaft 307. A second belt 305 is wound between the third pulley 306 and the second pulley 304. A first gear 308 is fixedly connected to the connecting shaft 307. A second gear 309 is fixedly connected to the long shaft 202. The first gear 308 and the second gear 309 mesh with each other. Therefore, when the support shaft 4 rotates, the long shaft 202 can rotate in the opposite direction, so that the soft steel belt 203 strikes the screen 6 in the direction of the screen's movement, thereby improving the striking effect.

[0028] As a technical optimization of this utility model, a guide sleeve 9 is fixedly connected to one end of the connecting frame 5. The guide sleeve 9 can guide the movement of the bio-fertilizer falling from the bottom of the feed hopper 7 so that the bio-fertilizer can enter between multiple screens 6 for screening. The feed hopper 7 is fixedly connected to the connecting box 1. The feed hopper 7 can facilitate the bio-fertilizer to enter the interior of the guide sleeve 9. The bottom end of the feed hopper 7 extends into the interior of the guide sleeve 9.

[0029] As a technical optimization of this utility model, two support rods 8 are fixedly connected to the connecting box 1. The support rods 8 can reinforce and support the feed hopper 7. The top ends of the two support rods 8 are fixedly connected to the same feed hopper 7.

[0030] As a technical optimization of this utility model, a feeding hopper 10 is fixedly connected to the connecting box 1. The feeding hopper 10 allows the screened impurities to flow out from the inside of the connecting box 1. One end of the feeding hopper 10 extends to the outside of the connecting box 1.

[0031] As a technical optimization of this utility model, two guide plates 12 are fixedly connected inside the connecting box 1. The guide plates 12 can guide the movement of the bio-fertilizer after being screened by the screen 6. A discharge port 13 is opened at the bottom of the connecting box 1. The bio-fertilizer after screening can be transferred by installing a conveyor belt at the bottom of the discharge port 13. The two guide plates 12 are symmetrically distributed about the middle of the discharge port 13.

[0032] In use, this invention connects the inlet pipe of the bag filter to the second suction pipe 206 via flange 207. During the screening of bio-fertilizer, starting the motor 301 causes its output shaft to rotate, which in turn rotates the first pulley 302. The rotation of the first pulley 302, in turn, drives the second pulley 304 via the first belt 303. The second pulley 304 then rotates the support shaft 4, which in turn rotates the connecting frame 5. The rotation of the connecting frame 5 then rotates multiple screens 6. At this point, the bio-fertilizer to be screened can be added into the feed hopper 7. The fertilizer will then enter the guide sleeve 9 from inside the feed hopper 7, and then from inside the guide sleeve 9 into the space between multiple screens 6. Since the multiple screens 6 are inclined, the bio-fertilizer will move from one end of the screen 6 to the other end as the screen 6 rotates. During this process, the bio-fertilizer can be screened through the screens 6. The screened bio-fertilizer will leak out through the mesh of the screen 6, and after leaking out, it will be guided by two guide plates 12, and finally leak out from the discharge port 13. Impurities will flow out from the hopper 10. Simultaneously, the rotation of the second pulley 304 will drive the third pulley 306 via the second belt 305. The third pulley 306 will drive the connecting shaft 307 to rotate, which in turn will drive the first gear 308. The first gear 308 will drive the second gear 309 to rotate in the opposite direction, which will in turn drive the long shaft 202 to rotate. The rotation of the long shaft 202 will drive multiple soft steel belts 203 to rotate. During this rotation, the multiple soft steel belts 203 will strike the screen 6, thus preventing the screen 6 from clogging. The soft steel belt 203 and the screen 6 rotate in opposite directions, which improves the striking effect. The dust generated during the striking process is blocked by the dust cover 204. Under the action of the bag filter, the dust can enter the interior of multiple first suction pipes 205 from the inside of the dust cover 204, then enter the interior of the second suction pipe 206, and finally enter the interior of the bag filter for dust removal. Therefore, the dust generated during the striking process is prevented from drifting into the surrounding environment and causing pollution, thus effectively improving the environmental friendliness of the use.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bio-fertilizer screening device, comprising a connecting box (1), characterized in that: The connecting box (1) is provided with a striking structure (2), which includes a support plate (201) and a long shaft (202). Two support plates (201) are fixedly connected to the connecting box (1), and the two support plates (201) are rotatably connected to the same long shaft (202). Multiple soft steel strips (203) are fixedly connected to the long shaft (202), and a dust cover (204) is fixedly connected between the two support plates (201). Multiple first suction pipes (205) are fixedly connected, and the top ends of the multiple first suction pipes (205) are fixedly connected to the same second suction pipe (206). One end of the second suction pipe (206) is fixedly connected to a flange (207). A support shaft (4) is rotatably connected to the connecting box (1). A connecting frame (5) is fixedly connected to the support shaft (4). Multiple screens (6) are installed on the connecting frame (5). A drive structure (3) is provided on one of the support plates (201).

2. The bio-fertilizer screening device according to claim 1, characterized in that: The multiple soft steel strips (203) located on the same side of the long axis (202) are linearly equidistantly distributed, and the multiple first suction tubes (205) are linearly equidistantly distributed.

3. The bio-fertilizer screening device according to claim 1, characterized in that: The axis of the support shaft (4) and the center of the connecting frame (5) are on the same straight line, and the multiple screens (6) are arranged in a circular array about the center of the connecting frame (5).

4. The bio-fertilizer screening device according to claim 1, characterized in that: The bottom end of the connecting box (1) is fixedly connected to a support frame (11), and the connecting box (1) is set at an inclination.

5. The bio-fertilizer screening device according to claim 1, characterized in that: The drive structure (3) includes a motor (301) and a first pulley (302). The motor (301) is mounted on a support plate (201). The first pulley (302) is fixedly connected to the output shaft of the motor (301). The second pulley (304) is fixedly connected to the support shaft (4). A first belt (303) is wound between the first pulley (302) and the second pulley (304).

6. The bio-fertilizer screening device according to claim 5, characterized in that: A connecting shaft (307) is rotatably connected to one of the support plates (201), a third pulley (306) is fixedly connected to the connecting shaft (307), a second belt (305) is wound between the third pulley (306) and the second pulley (304), a first gear (308) is fixedly connected to the connecting shaft (307), and a second gear (309) is fixedly connected to the long shaft (202), and the first gear (308) and the second gear (309) mesh with each other.

7. The bio-fertilizer screening device according to claim 1, characterized in that: One end of the connecting frame (5) is fixedly connected to a guide sleeve (9), and a feed hopper (7) is fixedly connected to the connecting box (1). The bottom end of the feed hopper (7) extends into the interior of the guide sleeve (9).

8. The bio-fertilizer screening device according to claim 7, characterized in that: Two support rods (8) are fixedly connected to the connecting box (1), and the top ends of the two support rods (8) are fixedly connected to the same feed hopper (7).

9. The bio-fertilizer screening device according to claim 1, characterized in that: A feeding hopper (10) is fixedly connected to the connecting box (1), and one end of the feeding hopper (10) extends to the outside of the connecting box (1).

10. A bio-fertilizer screening device according to claim 1, characterized in that: The connecting box (1) has two guide plates (12) fixedly connected inside. The bottom of the connecting box (1) has a discharge port (13). The two guide plates (12) are symmetrically distributed about the middle of the discharge port (13).