Screening device for compound fertilizer production

By designing detachable screening components and anti-clogging components, the problems of difficult maintenance and easy clogging of the screening screen of the drum screen are solved, realizing quick replacement and anti-clogging, and improving production efficiency and screening quality.

CN224237441UActive Publication Date: 2026-05-15SHANGHAI SIWEITE BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI SIWEITE BIOTECHNOLOGY CO LTD
Filing Date
2025-06-06
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The screening screen of the existing drum screen cannot be completely disassembled, which makes maintenance difficult and the screening screen is prone to clogging, affecting production efficiency and quality.

Method used

A screening device was designed, including a detachable screening component and an anti-clogging component. The screening component is rotated by a rotating rod, and combined with a cleaning brush and rubber beaters, the screening screen can be quickly replaced and clogged.

Benefits of technology

It enables quick assembly and disassembly of screening components, reduces downtime, improves production efficiency, effectively prevents clogging of the screening screen, and ensures screening quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of compound fertilizer processing, and discloses a screening device for compound fertilizer production, which comprises a device main body, the device main body comprises a first bracket, the top of the first bracket is fixedly connected with a second bracket, the inner side of the second bracket is provided with an anti-blocking component, and the right side of the first bracket is provided with a motor; a rotating rod is fixedly connected to an output shaft of the motor, mounting frames are fixedly connected to the outer side of the rotating rod, a screening assembly is mounted between the mounting frames, and a fixing assembly is mounted at the top of each mounting frame and comprises a cylindrical rod movably connected to the top of the corresponding mounting frame in a sleeving mode; the top of the fixing plate is movably sleeved with a fixing rod, the bottom of the outer side of the fixing rod is fixedly sleeved with a check block, and a spring is arranged on the outer side of the check block. The screening assembly and the fixing assembly are arranged, so that the screening assembly can be quickly disassembled and assembled, the downtime of equipment is short, and compared with downtime maintenance, the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of compound fertilizer processing technology, and more specifically, to a screening device for compound fertilizer production. Background Technology

[0002] Compound fertilizer refers to fertilizer made from two or more fertilizer raw materials, typically containing nutrients such as nitrogen, phosphorus, and potassium. The following is the basic production process of compound fertilizer: 1. Adjust the proportions of each component according to the needs of different crops and the elements lacking in the soil; 2. Mix all raw materials evenly in a certain proportion; 3. Granulate the mixed raw materials for easy application and transportation; 4. Dry the granulated compound fertilizer granules using drying equipment to ensure the stability of the fertilizer during storage and transportation; 5. Reduce the granule temperature using cooling equipment to prevent granule sticking; 6. Screen the dried granules to ensure the uniformity and applicability of the fertilizer particles; 7. Finally, package the compound fertilizer that meets the standards.

[0003] Rotary drum screens are a common type of screening device. Multiple annular screens are fixedly installed on the rotary drum screen. However, the screens cannot be disassembled as a whole. When the screens are damaged, the machine needs to be stopped for maintenance, and the screens cannot be replaced, which affects production efficiency. Furthermore, during the screening process, the mesh of the screen is prone to clogging, which affects the screening quality. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a screening device for compound fertilizer production, which has the advantage of improving screening efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screening device for compound fertilizer production, comprising a device body, the device body including a first support, a second support fixedly connected to the top of the first support, an anti-clogging component installed on the inner side of the second support, a motor installed on the right side of the first support, a rotating rod fixedly connected to the output shaft of the motor, an installation frame fixedly connected to the outer side of the rotating rod, a screening component installed between the installation frames, a fixing component installed on the top of the installation frame, the fixing component including a cylindrical rod movably sleeved on the top of the installation frame, a fixing plate fixedly connected to the top of the cylindrical rod, a fixing rod movably sleeved on the top of the fixing plate, a control block fixedly connected to the top of the fixing rod, a stop block fixedly sleeved on the bottom of the outer side of the fixing rod, a spring provided on the outer side of the stop block, the spring located between the fixing plate and the stop block.

[0006] As a preferred embodiment of this utility model, connecting rods are fixedly connected to the front, back and bottom of the mounting frames, and an arc-shaped plate is provided at the bottom of the side of the mounting frame.

[0007] As a preferred embodiment of the present invention, the screening assembly includes two annular frames, a screening screen is fixedly connected to the inner side of the annular frames, and a fixing hole is provided at the top of the annular frames.

[0008] As a preferred embodiment of this utility model, the fixing hole and the fixing rod are mutually adapted, and the annular frame and the arc plate are mutually adapted.

[0009] As a preferred technical solution of this utility model, the main body of the device is in an inclined state with the left side being higher than the right side, and the mesh size of the screening component decreases from left to right.

[0010] As a preferred technical solution of this utility model, the anti-clogging component includes a rotating rod movably sleeved inside the second bracket. Cleaning brushes are fixedly connected to both the front and back surfaces of the outer surface of the rotating rod. Rubber tapping strips are fixedly connected to both the top and bottom of the rotating rod. A driven wheel is fixedly sleeved on the left side of the outer side of the rotating rod.

[0011] As a preferred embodiment of this utility model, a driving wheel is fixedly sleeved on the left side of the outer side of the rotating rod, and the driving wheel is connected to the driven wheel via a belt.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by providing a screening component and a fixing component, allows for quick replacement of the screening component. Pulling the control block upwards causes the fixing rod to separate from the inside of the fixing hole. Then, rotating the cylindrical rod 90° ensures that the fixing plate and fixing rod do not obstruct the vertical direction of the screening component. Next, pulling the screening component vertically upwards raises its bottom to a height higher than the top of the arc-shaped plate. Finally, horizontally moving the screening component back and forth removes it from the mounting frame. Similarly, for installation, the screening component is first placed horizontally between the mounting frames, then moved vertically downwards until the bottom of the annular frame aligns with the inside of the arc-shaped plate. Finally, rotating it 90° allows the fixing rod to insert into the inside of the fixing hole under the spring force, thus fixing the screening component and completing the installation. This design enables quick assembly and disassembly of the screening component, minimizing equipment downtime and improving production efficiency compared to maintenance shutdowns.

[0014] 2. This utility model incorporates an anti-clogging component. The rotating rod drives the mounting frame and screening component to rotate, allowing the material to be screened under the action of gravity and rolling. When the rotating rod rotates, it drives the active rotating wheel to rotate. Through the transmission of the belt, the driven rotating wheel drives the rotating rod to rotate, thereby cleaning the top of the screening screen with a cleaning brush and tapping the top of the screening screen with rubber beaters to prevent the mesh of the screening screen from being blocked by the material. 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 mounting frame structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the fixing component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the screening component structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the anti-clogging component structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the belt structure of this utility model.

[0021] In the diagram: 1. Main body of the device; 101. First support; 102. Motor; 103. Rotating rod; 104. Mounting frame; 141. Arc plate; 105. Connecting rod; 106. Screening assembly; 161. Annular frame; 162. Screening screen; 163. Fixing hole; 107. Second support; 108. Driven wheel; 109. Belt; 2. Fixing assembly; 201. Cylindrical rod; 202. Fixing plate; 203. Fixing rod; 204. Control block; 205. Stop block; 206. Spring; 3. Anti-clogging assembly; 301. Rotating rod; 302. Cleaning brush; 303. Rubber beater strip; 304. Driven wheel. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 6As shown, this utility model provides a screening device for compound fertilizer production, including a device body 1. The device body 1 includes a first support 101, a second support 107 fixedly connected to the top of the first support 101, an anti-clogging component 3 installed on the inner side of the second support 107, a motor 102 installed on the right side of the first support 101, a rotating rod 103 fixedly connected to the output shaft of the motor 102, and a mounting frame 104 fixedly connected to the outer side of the rotating rod 103. A screening component 106 is installed between the mounting frames 104. A fixing component 2 is installed on the top of the mounting frame 104. The fixing component 2 includes a cylindrical rod 201 that is movably sleeved on the top of the mounting frame 104. A fixing plate 202 is fixedly connected to the top of the cylindrical rod 201. A fixing rod 203 is movably sleeved on the top of the fixing plate 202. A control block 204 is fixedly connected to the top of the fixing rod 203. A stop block 205 is fixedly sleeved on the bottom of the outer side of the fixing rod 203. A spring 206 is provided on the outer side of the stop block 205. The spring 206 is located between the fixing plate 202 and the stop block 205.

[0024] In this embodiment, when the screening component 106 needs to be replaced, pull the control block 204 upward to cause the fixing rod 203 to separate from the inside of the fixing hole 163. Then, rotate the cylindrical rod 201 90° so that the fixing plate 202 and the fixing rod 203 do not obstruct the vertical direction of the screening component 106. Then, pull the screening component 106 vertically upward so that the bottom height of the screening component 106 is higher than the top of the arc plate 141. Finally, move the screening component 106 horizontally in the front-back direction. The screening component 106 can be removed from between the mounting frames 104. Similarly, when installing the screening component 106, first place the screening component 106 horizontally between the mounting frames 104, then move the screening component 106 vertically downward so that the bottom of the annular frame 161 fits against the inner side of the arc plate 141. Finally, rotate 90°, and under the elastic force of the spring 206, the fixing rod 203 is inserted into the inner side of the fixing hole 163, thereby fixing the screening component 106 and completing the installation of the screening component 106.

[0025] The rotating rod 103 drives the mounting frame 104 and the screening assembly 106 to rotate, so that the material is screened under the action of gravity and rolling. When the rotating rod 103 rotates, it drives the driving wheel 108 to rotate. Through the transmission action of the belt 109, the driven wheel 304 drives the rotating rod 301 to rotate, thereby cleaning the top of the screening screen 162 with the cleaning brush 302, and the rubber beater strip 303 beats the top of the screening screen 162 to prevent the mesh of the screening screen 162 from being blocked by the material.

[0026] Connecting rods 105 are fixedly connected to the front, back and bottom of the mounting frames 104. An arc plate 141 is provided at the bottom of the side of the mounting frame 104. The screening component 106 includes two annular frames 161. A screening screen 162 is fixedly connected to the inner side of the annular frame 161. A fixing hole 163 is opened at the top of the annular frame 161. The fixing hole 163 is compatible with the fixing rod 203. The annular frame 161 is compatible with the arc plate 141.

[0027] The arc plate 141 serves to position the screening component 106. In cooperation with the fixing component 2, the screening component 106 can be stably installed between the mounting frames 104.

[0028] The main body 1 of the device is tilted with the left side higher than the right side, and the mesh size of the screening component 106 decreases from left to right.

[0029] The rotating rod 103 drives the mounting frame 104 and the screening assembly 106 to rotate, causing the material particles to fall through the corresponding screening screen 162 under the action of gravity and rolling, thereby realizing multi-stage screening of materials.

[0030] The anti-clogging component 3 includes a rotating rod 301 that is movably sleeved inside the second bracket 107. Cleaning brushes 302 are fixedly connected to both the front and back of the outer surface of the rotating rod 301. Rubber tapping strips 303 are fixedly connected to both the top and bottom of the rotating rod 301. A driven rotating wheel 304 is fixedly sleeved on the left side of the outer side of the rotating rod 301. An active rotating wheel 108 is fixedly sleeved on the left side of the outer side of the rotating rod 103. The active rotating wheel 108 is connected to the driven rotating wheel 304 via a belt 109.

[0031] Motor 102 drives rotating rod 103 to rotate, thereby causing screening assembly 106 to roll and screen materials. During the screening process, drive wheel 108 drives driven wheel 304 to rotate rotating rod 301 through belt 109. Cleaning brush 302 cleans the top of screening screen 162, and rubber beater strip 303 beats the top of screening screen 162 to prevent the mesh of screening screen 162 from being blocked by materials.

[0032] Working principle and usage process of this utility model:

[0033] When the screening assembly 106 needs to be replaced, pull the control block 204 upwards to separate the fixing rod 203 from the inside of the fixing hole 163. Then rotate the cylindrical rod 20190° so that the fixing plate 202 and the fixing rod 203 do not obstruct the vertical direction of the screening assembly 106. Then pull the screening assembly 106 vertically upwards so that the bottom of the screening assembly 106 is higher than the top of the arc plate 141. Finally, move the screening assembly 106 horizontally in the back-and-forth direction to replace the screening group. Part 106 is removed from between the mounting frames 104. Similarly, when installing the screening assembly 106, first place the screening assembly 106 horizontally between the mounting frames 104, then move the screening assembly 106 vertically downward so that the bottom of the annular frame 161 fits against the inner side of the arc plate 141. Finally, rotate 90°, and under the elastic force of the spring 206, the fixing rod 203 is inserted into the inner side of the fixing hole 163, thereby fixing the screening assembly 106 and completing the installation of the screening assembly 106.

[0034] The rotating rod 103 drives the mounting frame 104 and the screening assembly 106 to rotate, so that the material is screened under the action of gravity and rolling. When the rotating rod 103 rotates, it drives the driving wheel 108 to rotate. Through the transmission action of the belt 109, the driven wheel 304 drives the rotating rod 301 to rotate, thereby cleaning the top of the screening screen 162 with the cleaning brush 302, and the rubber beater strip 303 beats the top of the screening screen 162 to prevent the mesh of the screening screen 162 from being blocked by the material.

[0035] 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 process, method, article, or apparatus.

[0036] 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 screening device for compound fertilizer production, comprising a main body (1), characterized in that: The main body (1) of the device includes a first bracket (101), a second bracket (107) is fixedly connected to the top of the first bracket (101), an anti-clogging component (3) is installed on the inner side of the second bracket (107), a motor (102) is installed on the right side of the first bracket (101), a rotating rod (103) is fixedly connected to the output shaft of the motor (102), a mounting frame (104) is fixedly connected to the outer side of the rotating rod (103), a screening component (106) is installed between the mounting frames (104), and a fixing component is installed on the top of the mounting frames (104). 2) The fixing component (2) includes a cylindrical rod (201) movably sleeved on the top of the mounting frame (104), a fixing plate (202) fixedly connected to the top of the cylindrical rod (201), a fixing rod (203) movably sleeved on the top of the fixing plate (202), a control block (204) fixedly connected to the top of the fixing rod (203), a stop block (205) fixedly sleeved on the bottom of the outer side of the fixing rod (203), and a spring (206) provided on the outer side of the stop block (205), the spring (206) being located between the fixing plate (202) and the stop block (205).

2. The screening device for compound fertilizer production according to claim 1, characterized in that: Connecting rods (105) are fixedly connected to the front, back and bottom of the mounting frame (104), and an arc plate (141) is provided at the bottom of the side of the mounting frame (104).

3. The screening device for compound fertilizer production according to claim 1, characterized in that: The screening assembly (106) includes two annular frames (161), with a screening screen (162) fixedly connected to the inner side of the annular frames (161), and a fixing hole (163) opened at the top of the annular frames (161).

4. A screening device for compound fertilizer production according to claim 3, characterized in that: The fixing hole (163) is adapted to the fixing rod (203), and the annular frame (161) is adapted to the arc plate (141).

5. A screening device for compound fertilizer production according to claim 1, characterized in that: The main body (1) of the device is tilted with the left side being higher than the right side, and the mesh size of the screening component (106) decreases from left to right.

6. A screening device for compound fertilizer production according to claim 1, characterized in that: The anti-clogging component (3) includes a rotating rod (301) that is movably sleeved inside the second bracket (107). Cleaning brushes (302) are fixedly connected to both the front and back sides of the outer surface of the rotating rod (301). Rubber tapping strips (303) are fixedly connected to both the top and bottom of the rotating rod (301). A driven wheel (304) is fixedly sleeved on the left side of the outer side of the rotating rod (301).

7. A screening device for compound fertilizer production according to claim 1, characterized in that: A drive wheel (108) is fixedly sleeved on the left side of the outer side of the rotating rod (103), and the drive wheel (108) is connected to the driven wheel (304) via a belt (109).