Granulator for processing environment-friendly compound fertilizer

By incorporating a cleaning mechanism and filter screen into the granulator, the problems of compound fertilizer granule adhesion and breakage are solved, achieving more efficient granulation and product uniformity, and improving product quality stability.

CN223490894UActive Publication Date: 2025-10-31SHANDONG HUAYI HEAVY IND CO LTD
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Patent Information

Application Number
CN202423007552.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-10-31
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

During the extrusion process of existing compound fertilizer granulators, the extruded granules tend to stick to the rollers, resulting in poor product uniformity and consistency, as well as a large number of broken particles, which affects the stability of product quality.

Method used

Rotatable cleaning mechanisms are installed on both sides of the extrusion rollers of the granulator. The drive shaft is used to drive the cleaning mechanism to clean the adhering materials. A filter screen and a vibrator are installed at the discharge port to filter and remove small particles.

Benefits of technology

It improves granulation efficiency, enhances product uniformity and consistency, and improves product stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223490894U_ABST
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Abstract

The utility model relates to the technical field of pelletizers, and discloses an environment-friendly pelletizer for compound fertilizer processing, which comprises a pelletizer body, drivers are arranged on two sides of two compression rollers of the pelletizer body, a rotating shaft is fixedly connected onto the drivers, the rotating shaft is rotatably connected with a shell of the pelletizer body, and the pelletizer body is fixedly connected with the pelletizer body. Two symmetrical mounting seats are fixedly connected to the rotating shaft, a cleaning mechanism is detachably connected to the two mounting seats, two fixing seats for fixing the cleaning mechanism are slidably connected to the rotating shaft, a collecting hopper is placed below a discharge port of the granulator body, a filter screen is fixedly connected to the inner wall of the collecting hopper, and a vibrator is fixedly connected to the side wall of the collecting hopper; a discharging opening is formed in the front end of the collecting hopper, and a sealing assembly is arranged on the discharging opening. According to the utility model, the compound fertilizer adhered to the compression roller can be cleaned through the cleaning mechanism, so that the granulation efficiency is improved, and the granulated product is filtered to remove small particles in the product, so that the stability of the product is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field, specifically to an environmentally friendly granulator for compound fertilizer processing. Background Technology

[0002] With the development of modern agriculture, farmers have increasingly higher requirements for fertilizers. Traditional fertilizers suffer from low nutrient content, slow release rates, and low utilization rates, making them unable to meet the needs of efficient and precise fertilization in modern agriculture. Environmentally friendly compound fertilizers, with their advantages of high nutrient content, reasonable ratios, moderate release rates, and high utilization rates, are gradually becoming the mainstream choice in modern agriculture. Therefore, the increasing demand for environmentally friendly compound fertilizers has driven the research and development and application of granulators for processing environmentally friendly compound fertilizers.

[0003] Patent CN221108133U discloses a pressure-adjustable extrusion granulator, including a housing frame, extrusion granulation rollers, and a drive motor. The inner wall of the housing frame has an adjustment groove, and the outer surface of the housing frame has a through groove connected to the adjustment groove. Adjustment blocks are installed within the adjustment groove, and extrusion granulation rollers are mounted on a rotating shaft between the adjustment blocks. A drive motor is fixedly installed at the center of the outer side of each adjustment block, passing through the through groove. A buffer spring is installed on the outer side of each adjustment block, located inside the adjustment groove. In this pressure-adjustable extrusion granulator, the extrusion granulation rollers rotate via the drive motor, and the entire extrusion granulation roller assembly can be adjusted within the adjustment groove using the adjustment blocks and buffer springs. This allows for appropriate adjustment of the spacing between the extrusion granulation rollers and control of the extrusion area according to the material requirements.

[0004] However, the above technology still has the following problems: during the extrusion granulation process of compound fertilizer, some extruded granules will stick to the rollers, which will affect the next extrusion granulation. In addition, after the compound fertilizer is extruded and granulated, a lot of raw materials that participated in the extrusion will flow down, resulting in the product containing more broken particles, which will affect the uniformity and consistency of the entire batch of fertilizer particles and lead to unstable product quality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an environmentally friendly granulator for compound fertilizer processing, which can prevent materials from adhering to the extrusion rollers, improve production efficiency, and filter the product to improve its uniformity and consistency.

[0006] This utility model provides the following technical solution: an environmentally friendly compound fertilizer granulator, including a granulator body, with drivers on both sides of the two pressure rollers of the granulator body, a rotating shaft fixedly connected to the driver, the rotating shaft being rotatably connected to the shell of the granulator body, two mutually symmetrical mounting seats fixedly connected to the rotating shaft, a cleaning mechanism detachably connected to the two mounting seats, two fixing seats for fixing the cleaning mechanism being slidably connected to the rotating shaft, a collecting hopper placed below the discharge port of the granulator body, a filter screen fixedly connected to the inner wall of the collecting hopper, a vibrator fixedly connected to the side wall of the collecting hopper, a discharge port provided at the front end of the collecting hopper, and a sealing component provided on the discharge port.

[0007] Furthermore, the mounting base includes a cylindrical block fixedly connected to the rotating shaft, the outer surface of the front end of the cylindrical block is provided with a threaded groove, and the inner wall of the cylindrical block is provided with four circumferentially arrayed slots.

[0008] Furthermore, the number of cleaning mechanisms is four, and they are slidably connected to the card slots.

[0009] Furthermore, the cleaning mechanism includes a mounting plate with a fan-shaped cross-section, the included angle between the two side walls of the mounting plate is 90 degrees, a card block adapted to the card slot is fixedly connected to the middle position of both ends of the mounting plate, and several soft brushes are fixedly connected to the surface of the mounting plate.

[0010] Furthermore, the fixed base includes a base plate slidably connected to the rotating shaft, and an internally threaded tube adapted to the threaded groove is fixedly connected to the base plate. A round tube is fixedly connected to the front end of the internally threaded tube, and the inner diameter of the round tube is the same as the outer diameter of the mounting plate.

[0011] Furthermore, the sealing assembly includes two electrically operated telescopic rods fixedly connected to the lower surface of the discharge port. The output ends of the two electrically operated telescopic rods are fixedly connected to L-shaped support plates. Slide plates are fixedly connected to the two L-shaped support plates, and the slide plates are slidably connected to the bottom wall of the discharge port.

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

[0013] This environmentally friendly compound fertilizer granulator uses a rotatable cleaning mechanism on the sides of the two extrusion rollers to clean the compound fertilizer raw materials or granules adhering to the extrusion rollers, thereby improving granulation efficiency. It also filters the granulated product to remove small particles, thereby improving the uniformity and consistency of the product and thus enhancing its stability. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0015] Figure 2This is a three-dimensional structural diagram of the fixture of this utility model after it has been removed;

[0016] Figure 3 This is a three-dimensional structural diagram of the cleaning mechanism of this utility model;

[0017] Figure 4 for Figure 2 Enlarged view of point A above;

[0018] Figure 5 for Figure 3 Enlarged view of point B above;

[0019] Figure 6 for Figure 3 Enlarged view of point C above.

[0020] In the diagram: 1. Granulator body; 2. Pressure roller; 3. Driver; 4. Rotary shaft; 5. Mounting base; 501. Cylindrical block; 502. Threaded groove; 503. Slot; 6. Cleaning mechanism; 601. Mounting plate; 602. Slot; 603. Soft brush; 7. Fixed base; 701. Base plate; 702. Internally threaded pipe; 703. Round pipe; 8. Collection hopper; 9. Filter screen; 10. Vibrator; 11. Discharge port; 12. Sealing assembly; 1201. Electric telescopic rod; 1202. L-shaped support plate; 1203. Slide plate. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 6 An environmentally friendly compound fertilizer granulator includes a granulator body 1. Drivers 3 are installed on both sides of two pressure rollers 2 of the granulator body 1. A rotating shaft 4 is fixedly connected to each driver 3, and the rotating shaft 4 is rotatably connected to the shell of the granulator body 1. Two symmetrical mounting seats 5 are fixedly connected to the rotating shaft 4, and a cleaning mechanism 6 is detachably connected to each mounting seat 5. Two fixing seats 7 for fixing the cleaning mechanism 6 are slidably connected to the rotating shaft 4. A collecting hopper 8 is placed below the discharge port of the granulator body 1. A filter screen 9 is fixedly connected to the inner wall of the collecting hopper 8, and a vibrator 10 is fixedly connected to the side wall of the collecting hopper 8. A discharge port 11 is provided at the front end of the collecting hopper 8, and a sealing component 12 is provided on the discharge port 11.

[0023] The environmentally friendly compound fertilizer granulator of this utility model has a similar structure to the existing pressure-adjustable extrusion granulator. For example, patent CN221108133U discloses a pressure-adjustable extrusion granulator. The main improvement of this utility model is that the drive 3 can cause the cleaning mechanism 6 on the rotating shaft 4 to rotate, thereby allowing the cleaning mechanism 6 to clean the compound fertilizer raw materials adhering to the pressure roller 2, thus improving the granulation efficiency. After granulation, the product does not need to be filtered to remove small particles, thereby improving the uniformity and consistency of the product and enhancing its stability. Figures 1 to 6 As shown, in the environmentally friendly compound fertilizer granulator of this utility model, during use, the two locking blocks 602 at both ends of the mounting plate 601 are first locked into the locking grooves 503 on the two mutually symmetrical mounting seats 5 to initially fix the cleaning mechanism 6. The subsequent installation of the three cleaning mechanisms 6 is carried out in the same way. Then, the fixing seat 7 is moved, and the internal threaded tube 702 is rotated so that the internal threaded tube 702 is threadedly connected to the threaded groove 502 on the cylindrical block 501 until the bottom plate 701 abuts against the front end of the cylindrical block 501. At this time, the front end of the cylindrical tube 703 is flush with the front end of the cylindrical block 501, thereby fixing and limiting the locking block 602. During the extrusion granulation process, the cleaning mechanism 6 activates the driver 3, which causes the rotating shaft 4 to rotate, thus making the cleaning mechanism 6 rotate in the opposite direction to the pressure roller 2. This increases the cleaning work on the pressure roller 2, and the finished product falls onto the filter screen 9. The vibrator 10 causes the filter screen 9 to vibrate, thereby filtering the product and removing smaller particles. When the filtration effect is not good, the electric telescopic rod 1201 can be activated to move the L-shaped support plate 1202 upward, thereby moving the slide plate 1203, which is flush with the bottom wall of the discharge port 11, upward to temporarily leave the product on the filter screen 9, prolonging the filtration time and improving the filtration effect.

[0024] like Figure 5 As shown, the mounting base 5 includes a cylindrical block 501 fixedly connected to the rotating shaft 4. The outer surface of the front end of the cylindrical block 501 is provided with a threaded groove 502, and the inner wall of the cylindrical block 501 is provided with four circumferentially arrayed slots 503.

[0025] Specifically, the four circular array of slots 503 are used to initially fix the four cleaning mechanisms 6, while the threaded grooves 502 are used to connect with the internal threaded tubes 702 on the fixing seat 7, thereby fixing the fixing seat 7 and thus fixing the cleaning mechanism 6.

[0026] like Figure 4 As shown, there are four cleaning mechanisms 6, which are slidably connected to the slot 503.

[0027] Specifically, after a period of use, the soft brush 603 of the cleaning mechanism 6 will be worn out and needs to be replaced. Four brushes are provided to facilitate the disassembly of the cleaning mechanism 6. Only the worn parts that are no longer usable need to be replaced, and the entire part does not need to be replaced.

[0028] like Figure 4 As shown, the cleaning mechanism 6 includes a mounting plate 601 with a fan-shaped cross-section. The included angle between the two side walls of the mounting plate 601 is 90 degrees. The middle positions of both ends of the mounting plate 601 are fixedly connected to a card block 602 that is compatible with the card slot 503. Several soft brushes 603 are fixedly connected to the surface of the mounting plate 601.

[0029] Specifically, the two locking blocks 602 at both ends of the mounting plate 601 are first locked into the slots 503 on the two symmetrical mounting bases 5 to initially fix the cleaning mechanism 6. After the fixing base 7 is connected to the mounting base 5, the driver 3 can be started to perform the cleaning work.

[0030] like Figure 4 As shown, the fixed base 7 includes a base plate 701 slidably connected to the rotating shaft 4. An internally threaded tube 702 adapted to the threaded groove 502 is fixedly connected to the base plate 701. A round tube 703 is fixedly connected to the front end of the internally threaded tube 702. The inner diameter of the round tube 703 is the same as the outer diameter of the mounting plate 601.

[0031] Specifically, the fixed base 7 is moved, and then the internal threaded tube 702 is rotated so that the internal threaded tube 702 is threadedly connected to the threaded groove 502 on the cylindrical block 501 until the base plate 701 abuts against the front end of the cylindrical block 501. At this time, the front end of the round tube 703 is flush with the front end of the cylindrical block 501, thereby fixing and limiting the locking block 602, thus fixing the cleaning mechanism 6.

[0032] like Figure 6 As shown, the sealing assembly 12 includes two electric telescopic rods 1201 fixedly connected to the lower surface of the discharge port 11. The output ends of the two electric telescopic rods 1201 are fixedly connected to L-shaped support plates 1202. Slide plates 1203 are fixedly connected to the two L-shaped support plates 1202. The slide plates 1203 are slidably connected to the bottom wall of the discharge port 11.

[0033] Specifically, when the product's filtration effect is poor, the electric telescopic rod 1201 can be activated to move the L-shaped support plate 1202 upward, thereby moving the slide plate 1203, which is flush with the bottom wall of the discharge port 11, upward, so as to temporarily keep the product on the filter screen 9, prolong the filtration time, and improve the filtration effect.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An environmentally friendly granulator for compound fertilizer processing, comprising a granulator body (1), characterized in that: Both sides of the two pressure rollers (2) of the granulator body (1) are provided with drivers (3). A rotating shaft (4) is fixedly connected to the driver (3). The rotating shaft (4) is rotatably connected to the shell of the granulator body (1). Two mutually symmetrical mounting seats (5) are fixedly connected to the rotating shaft (4). A cleaning mechanism (6) is detachably connected to the two mounting seats (5). Two fixing seats (7) for fixing the cleaning mechanism (6) are slidably connected to the rotating shaft (4). A collecting hopper (8) is placed below the discharge port of the granulator body (1). A filter screen (9) is fixedly connected to the inner wall of the collecting hopper (8). A vibrator (10) is fixedly connected to the side wall of the collecting hopper (8). A discharge port (11) is provided at the front end of the collecting hopper (8). A sealing component (12) is provided on the discharge port (11).

2. The environmentally friendly granulator for compound fertilizer processing according to claim 1, characterized in that: The mounting base (5) includes a cylindrical block (501) fixedly connected to the rotating shaft (4). The outer surface of the front end of the cylindrical block (501) is provided with a threaded groove (502), and the inner wall of the cylindrical block (501) is provided with four circumferentially arranged slots (503).

3. The environmentally friendly granulator for compound fertilizer processing according to claim 2, characterized in that: The number of cleaning mechanisms (6) is four, and they are slidably connected to the slots (503).

4. The environmentally friendly granulator for compound fertilizer processing according to claim 3, characterized in that: The cleaning mechanism (6) includes a mounting plate (601) with a fan-shaped cross-section. The included angle between the two side walls of the mounting plate (601) is 90 degrees. The mounting plate (601) has a card block (602) that is compatible with the card slot (503) fixedly connected at the middle position of both ends. Several soft brushes (603) are fixedly connected to the surface of the mounting plate (601).

5. The environmentally friendly granulator for compound fertilizer processing according to claim 4, characterized in that: The fixed base (7) includes a base plate (701) slidably connected to the rotating shaft (4). An internally threaded tube (702) adapted to the threaded groove (502) is fixedly connected to the base plate (701). A round tube (703) is fixedly connected to the front end of the internally threaded tube (702). The inner diameter of the round tube (703) is the same as the outer diameter of the mounting plate (601).

6. A granulator for processing environmentally friendly compound fertilizer according to claim 1, 2, 3, 4 or 5, characterized in that: The sealing assembly (12) includes two electric telescopic rods (1201) fixedly connected to the lower surface of the discharge port (11). The output ends of the two electric telescopic rods (1201) are fixedly connected to L-shaped support plates (1202). Slide plates (1203) are fixedly connected to the two L-shaped support plates (1202). The slide plates (1203) are slidably connected to the bottom wall of the discharge port (11).

Citation Information

Patent Citations

  • Pressure-adjustable extrusion granulator

    CN221108133U