Granulator for compound fertilizer production

Abstract

The utility model discloses a pelletizer for compound fertilizer production, which relates to the field of pelletizers and comprises a support, a turntable rotatably mounted on the support, a cross bar fixedly mounted on the support and on one side of the turntable, an extrusion component fixedly mounted in the cross bar and composed of a spring and a push plate, the spring is fixedly mounted at one end of the push plate, and the push plate is fixedly mounted on the support. A cleaning assembly is movably installed on the cross rod and located on one side of the extrusion assembly, the cleaning assembly is composed of a base plate, a sliding block, a guide rod, a connecting column, a V-shaped plate, a fixing shaft, a multi-edge rolling roller, a base column and bristles, the sliding block and the connecting column are fixedly installed at one end of the base plate, the guide rod is fixedly installed at one end of the sliding block, the V-shaped plate is fixedly installed at one end of the base column, and the fixing shaft is fixedly installed at the other end of the base column. By arranging the extrusion assembly and the cleaning assembly, after production of a batch of compound fertilizer is completed, the cleaning assembly can be used for pushing the extrusion assembly to clean the side wall of the rotary disc, and the problem that materials adhere to the side wall of a traditional disc granulator is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of granulators, and in particular to a granulator for compound fertilizer production. Background Technology

[0002] Granulators are key equipment in compound fertilizer production, converting powdered raw materials into granules. Their performance directly affects the strength, uniformity, pelletizing rate, and production efficiency of the granules. Common types of compound fertilizer granulators include rotary drum granulators, disc granulators, extrusion granulators, spray granulators, and fluidized bed granulators. The working principle of a disc granulator involves a motor driving an inclined disc to rotate. The mixed powdered fertilizer raw materials are fed into the disc, where they roll along the disc surface under the action of centrifugal force, gravity, and friction. Simultaneously, an appropriate amount of water or binder is sprayed in, causing the powder to continuously agglomerate and gradually grow into granules in a moist state. The disc's tilt angle and rotation speed are adjustable; by changing these parameters, the particle size and pelletizing rate can be controlled. Finally, qualified granules overflow from the edge of the disc due to its rotation, while un-granulated fine powder remains inside the disc to participate in granulation.

[0003] During the production process of traditional disc granulators, due to factors such as material viscosity and process moisture control, a large amount of fertilizer raw materials often adheres to and accumulates on the sidewalls. If this adhesion is not addressed in time, it will have a series of negative effects: First, the material buildup on the sidewalls will significantly reduce the effective working volume of the disc, directly affecting the single-batch processing capacity; second, the adhered layer will change the normal movement trajectory of the material within the disc, resulting in uneven granulation and affecting the product qualification rate; more importantly, the residual material will harden and clump together after the equipment is shut down and cooled, not only increasing the difficulty of cleaning before the next startup, but also potentially causing cross-contamination between different batches of raw materials due to incomplete cleaning, seriously affecting the stability of subsequent production and product consistency. Therefore, a granulator for compound fertilizer production is needed to solve the above problems. Utility Model Content

[0004] The main objective of this invention is to provide a granulator for compound fertilizer production, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A granulator for compound fertilizer production includes a support frame with a turntable rotatably mounted on it. A crossbar is fixedly mounted on the support frame and on one side of the turntable. An extrusion assembly is fixedly mounted inside the crossbar. The extrusion assembly consists of a spring and a push plate. The spring is fixedly mounted on one end of the push plate. A cleaning assembly is movably mounted on the crossbar and on one side of the extrusion assembly. The cleaning assembly consists of a base plate, a slider, a guide rod, a connecting column, a V-shaped plate, a fixed shaft, a multi-faceted roller, a base column, and brush bristles. The slider and connecting column are both fixedly mounted on one end of the base plate. The guide rod is fixedly mounted on one end of the slider. The V-shaped plate is fixedly mounted on one end of the base column. The fixed shaft and the base column are both fixedly mounted on one end of the V-shaped plate. The multi-faceted roller is rotatably mounted on the fixed shaft. The brush bristles are fixedly mounted on the base column, and both the multi-faceted roller and the brush bristles are in contact with the inner wall of the side plate of the turntable.

[0007] Preferably, the bracket is fixedly installed on the upper end of the base.

[0008] Preferably, the crossbar has a mounting guide groove, and one end of the crossbar has an insertion hole, which is connected to the mounting guide groove.

[0009] Preferably, the extrusion assembly is located within the mounting guide groove, and the spring is fixedly connected to the inner wall of the mounting guide groove.

[0010] Preferably, the base plate on the cleaning component is located at one end of the crossbar, the slider is slidably installed in the mounting guide groove opened on the crossbar, and the slider is located on the side of the push plate near the insertion hole, and the guide rod is movably inserted into the insertion hole opened on the crossbar.

[0011] Preferably, the multi-faceted roller on the cleaning assembly has a shaft hole, and the multi-faceted roller is rotatably mounted on a fixed shaft through the shaft hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By incorporating extrusion and cleaning components, after a batch of compound fertilizer is produced, the cleaning component can drive the extrusion component to clean the sidewalls of the turntable. This effectively solves the problem of material adhesion to the sidewalls of traditional disc granulators. Specifically, the springs and push plates in the extrusion component can adapt to the thickness of the material buildup on the sidewalls, applying uniform pressure to ensure thorough cleaning. The multi-faceted rollers and brushes in the cleaning component work together to break up hardened material and remove residual fine powder, significantly improving cleaning efficiency. Furthermore, the design of the slider and guide rod allows the cleaning component to move flexibly along the guide rail groove to adapt to cleaning needs at different locations. The structure of the V-shaped plate and fixed shaft ensures stable contact between the multi-faceted rollers and the turntable sidewalls. These improvements not only avoid the reduction of effective working volume and abnormal material movement trajectories but also prevent cross-contamination between batches, thereby improving the uniformity, pelletizing rate, production stability, and product consistency of compound fertilizer granules. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 For the present utility model Figure 1 A magnified view of point A;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model after the cleaning components have been removed;

[0017] Figure 4 This is an exploded view of the cleaning component of this utility model.

[0018] In the diagram: 1. Bracket; 2. Crossbar; 3. Turntable; 4. Base; 5. Extrusion assembly; 6. Cleaning assembly; 7. Mounting guide groove; 8. Insertion hole; 9. Spring; 10. Push plate; 11. Base plate; 12. Slider; 13. Guide rod; 14. Connecting column; 15. V-shaped plate; 16. Fixed shaft; 17. Multi-faceted roller; 18. Base column; 19. Brush bristles. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a granulator for compound fertilizer production includes a support 1, a turntable 3 rotatably mounted on the support 1, a crossbar 2 fixedly mounted on the support 1 and on one side of the turntable 3, an extrusion assembly 5 fixedly mounted inside the crossbar 2, the extrusion assembly 5 consisting of a spring 9 and a push plate 10, the spring 9 being fixedly mounted on one end of the push plate 10, and a cleaning assembly 6 movably mounted on the crossbar 2 and on one side of the extrusion assembly 5, the cleaning assembly 6 consisting of a base plate 11, a slider 12, a guide rod 13, a connecting column 14, a V-shaped plate 15, a fixed shaft 16, a multi-faceted rolling roller 17, a base column 18, and brush bristles 19, the slider 12 and the connecting column 14 being fixed. The guide rod 13 is fixedly installed at one end of the base plate 11, the V-shaped plate 15 is fixedly installed at one end of the base column 18, the fixed shaft 16 and the base column 18 are both fixedly installed at one end of the V-shaped plate 15, the multi-faceted roller 17 is rotatably installed on the fixed shaft 16, the brush 19 is fixedly installed on the base column 18, and both the multi-faceted roller 17 and the brush 19 are in contact with the inner wall of the side plate of the turntable 3. The bracket 1 is fixedly installed at the upper end of the base 4. When using the granulator to produce compound fertilizer, the cleaning component 6 needs to be removed from the crossbar 2. When producing compound fertilizer, the cleaning component 6 is first removed from the crossbar 2 (e.g. Figure 3 To avoid interfering with the granulation process, the granulator is then started. The turntable 3 rotates under the drive of the motor, feeding the mixed powdered fertilizer raw materials into the turntable 3. Simultaneously, an appropriate amount of water or binder is sprayed in. Under the action of centrifugal force, gravity, and friction, the material rolls and agglomerates to form granules. After one batch of compound fertilizer is produced, the machine is stopped, and the cleaning component 6 is reinstalled onto the crossbar 2. Driven by the extrusion component 5, the cleaning component 6 moves along the mounting guide groove 7, causing the multi-faceted roller 17 and brush 19 to contact the side wall of the turntable 3. Uniform pressure is applied through the spring 9 and push plate 10 of the extrusion component 5. At this point, the granulator is restarted, causing the turntable 3 to rotate under the drive of the motor. Driven by rotation, the multi-faceted roller 17 and brush 19 work together to crush and clean the material adhering to the side wall as the turntable 3 rotates. The spring 9 and push plate 10 in the extrusion assembly 5 can adapt to the thickness of the material on the side wall and apply uniform pressure to ensure thorough cleaning. The multi-faceted roller 17 in the cleaning assembly 6 crushes the hardened material by rotation, and the brush 19 cleans the residual fine powder. The two work together to improve cleaning efficiency. The design of the slider 12 and guide rod 13 allows the cleaning assembly 6 to move flexibly to adapt to the cleaning needs of different positions. The V-shaped plate 15 and fixed shaft 16 ensure stable contact between the multi-faceted roller 17 and the side wall of the turntable 3 to avoid the problem of incomplete cleaning.

[0021] Specifically, the crossbar 2 has a mounting guide groove 7, and one end of the crossbar 2 has an insertion hole 8 that communicates with the mounting guide groove 7. The extrusion assembly 5 is located inside the mounting guide groove 7, and the spring 9 is fixedly connected to the inner wall of the mounting guide groove 7. The base plate 11 on the cleaning assembly 6 is located at one end of the crossbar 2. The slider 12 is slidably installed in the mounting guide groove 7 on the crossbar 2, and the slider 12 is located on the side of the push plate 10 near the insertion hole 8. The guide rod 13 is movably inserted into the insertion hole 8 on the crossbar 2. The multi-faceted roller on the cleaning assembly 6... The 17 has a shaft hole, through which the multi-faceted roller 17 is rotatably mounted on the fixed shaft 16. When disassembling the cleaning component 6, the cleaning component 6 is pushed toward the extrusion component 5, thereby compressing the spring 9. After the guide rod 13 is moved out of the insertion hole 8, the slider 12 is pulled out of the mounting guide groove 7, thus completing the disassembly of the cleaning component 6. When installing the cleaning component 6, it is only necessary to insert the guide rod 13 into the insertion hole 8 under the elastic force of the spring 9, and at the same time, make the multi-faceted roller 17 and the bristles 19 contact the side wall of the turntable 3.

[0022] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A granulator for compound fertilizer production, comprising a support (1), a turntable (3) rotatably mounted on the support (1), and a crossbar (2) fixedly mounted on the support (1) and on one side of the turntable (3), characterized in that: An extrusion assembly (5) is fixedly installed inside the crossbar (2). The extrusion assembly (5) consists of a spring (9) and a push plate (10). The spring (9) is fixedly installed at one end of the push plate (10). A cleaning assembly (6) is movably installed on one side of the crossbar (2) on the extrusion assembly (5). The cleaning assembly (6) consists of a base plate (11), a slider (12), a guide rod (13), a connecting column (14), a V-shaped plate (15), a fixed shaft (16), a multi-faceted rolling roller (17), a base column (18), and bristles (19). The slider ( 12) and connecting column (14) are both fixedly installed at one end of the base plate (11), the guide rod (13) is fixedly installed at one end of the slider (12), the V-shaped plate (15) is fixedly installed at one end of the base column (18), the fixed shaft (16) and the base column (18) are both fixedly installed at one end of the V-shaped plate (15), the multi-faceted rolling roller (17) is rotatably installed on the fixed shaft (16), the bristles (19) are fixedly installed on the base column (18), and the multi-faceted rolling roller (17) and the bristles (19) are both in contact with the inner wall of the side plate of the turntable (3).

2. A granulator for compound fertilizer production according to claim 1, characterized in that: The bracket (1) is fixedly installed on the upper end of the base (4).

3. A granulator for compound fertilizer production according to claim 2, characterized in that: The crossbar (2) has an installation guide groove (7) and an insertion hole (8) at one end, and the insertion hole (8) is connected to the installation guide groove (7).

4. A granulator for compound fertilizer production according to claim 3, characterized in that: The extrusion assembly (5) is located in the mounting guide groove (7), and the spring (9) is fixedly connected to the inner wall of the mounting guide groove (7).

5. A granulator for compound fertilizer production according to claim 4, characterized in that: The base plate (11) on the cleaning component (6) is located at one end of the crossbar (2), the slider (12) is slidably installed in the mounting guide groove (7) opened on the crossbar (2), and the slider (12) is located on the side of the push plate (10) near the insertion hole (8), and the guide rod (13) is movably inserted into the insertion hole (8) opened on the crossbar (2).

6. A granulator for compound fertilizer production according to claim 5, characterized in that: The multi-faceted roller (17) on the cleaning component (6) has a shaft hole, and the multi-faceted roller (17) is rotatably mounted on the fixed shaft (16) through the shaft hole.

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