Fertilizer processing granulator

By introducing a combination of a mixing tank and a hot air inlet pipe into the fertilizer granulator, along with a servo motor-driven auger and a high-speed rotating pelletizer, the problems of uneven mixing, unstable feeding, and insufficient pelletizing accuracy are solved, thereby improving the efficiency and quality of fertilizer granulation.

CN223969918UActive Publication Date: 2026-03-06SHANXI DINGSHENGYUAN PLANT PROTECTION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Traditional fertilizer granulators suffer from problems such as uneven mixing, poor feeding stability, and insufficient pelleting precision, which affect the granulation quality.

Method used

The mixing tank inside the agitator is combined with the hot air inlet pipe. The mixture is mixed by the agitator rod and dried by the hot air. Combined with the servo motor-driven spiral auger for precise feeding, the pelletizing knife rotates at high speed close to the screen to cut the material.

Benefits of technology

It achieves uniform mixing and drying of materials, ensures stable feeding and pelletizing accuracy, and improves the overall efficiency and yield of the pellet mill.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of fertilizer processing, particularly relates to a fertilizer processing granulator, and aims to solve the problems of non-uniform stirring, poor feeding stability and insufficient granulating precision in the background technology, and adopts the following scheme that the fertilizer processing granulator comprises a support frame, a stirring piece is welded at the top of the inner wall of the support frame, and a stirring rod is welded at the top of the inner wall of the support frame; one end of the outer wall of one side of the stirring piece is fixedly connected with a hot air inlet pipe through a flange, the other end of the outer wall of the top of the stirring piece is fixedly connected with an exhaust pipe through a flange, a spiral feeding piece is arranged at the bottom of the stirring piece, and the outer wall of one end of the spiral feeding piece is fixedly connected with a fertilizer pelletizing mechanism through a bolt; the fertilizer pelletizing mechanism comprises a net plate, a connecting rod, a mounting plate, a third servo motor, a main shaft and a pelletizing cutter. According to the utility model, the functions of stirring, feeding, pelletizing and hot air drying are integrated, the structural design is optimized, and a high-efficiency, energy-saving and high-precision fertilizer pelletizing process is realized.
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Description

Technical Field

[0001] This utility model relates to the field of fertilizer processing technology, and in particular to a fertilizer processing granulator. Background Technology

[0002] Fertilizers are substances that provide one or more essential nutrients for plants, improve soil properties, and enhance soil fertility. They are one of the material foundations of agricultural production. They mainly include ammonium phosphate fertilizers, water-soluble fertilizers containing macronutrients, fertilizers containing micronutrients, bio-fertilizers, organic fertilizers, and multi-dimensional energy-concentrated organic fertilizers. Granulation is a crucial process in fertilizer production, directly affecting the uniformity, strength, and effectiveness of fertilizer particles. Traditional fertilizer granulators commonly suffer from the following problems:

[0003] 1. Uneven mixing: Conventional mixing devices mostly use a single blade structure, which has low mixing efficiency and is prone to raw material agglomeration or uneven component distribution, affecting the quality of subsequent granulation.

[0004] 2. Poor feeding stability: When the spiral feeding mechanism is not designed properly, material blockage or fluctuations in feeding speed are likely to occur, resulting in inconsistent granulation size.

[0005] 3. Insufficient pelletizing accuracy: The gap between the traditional pelletizer and the screen is large, which easily causes powder or particles to stick together, resulting in a low yield. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a fertilizer processing granulator, which overcomes the shortcomings of the existing technology and effectively solves the problems of uneven mixing, poor feeding stability and insufficient pelletizing accuracy.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A fertilizer processing granulator includes a support frame, an agitator welded to the top of the inner wall of the support frame, a hot air inlet pipe fixedly connected to one end of the outer wall of one side of the agitator via a flange, and an exhaust pipe fixedly connected to the other end of the top outer wall of the agitator via a flange. A spiral feeding component is provided at the bottom of the agitator, and a fertilizer pelletizing mechanism is fixedly connected to the outer wall of one end of the spiral feeding component via bolts.

[0009] The fertilizer pelletizing mechanism includes a screen plate, connecting rods, a mounting plate, a third servo motor, a main shaft, and pelletizing blades. The screen plate is fixedly connected to the outer wall of the other end of the feeding cylinder by bolts. The connecting rods, which are evenly distributed, are welded to the outer wall of one side of the screen plate. The mounting plate is welded to the outer wall of one end of the connecting rods. The third servo motor is fixedly connected to the outer wall of one side of the mounting plate by screws. The main shaft is fixedly connected to the output shaft of the third servo motor by a coupling. The pelletizing blades are mounted on the outer wall of one end of the main shaft.

[0010] Preferably, the stirring component includes a stirring tank welded to the inner wall of the support frame, a first motor fixedly connected to the outer wall of one end of the stirring tank by screws, and a stirring rod fixedly connected to the output shaft of the first motor by a coupling.

[0011] Preferably, the spiral feeding component includes a feeding cylinder disposed at the bottom of the mixing tank, a second servo motor fixedly connected to the outer wall of one end of the feeding cylinder by screws, and a spiral auger fixedly connected to the output shaft of the second servo motor by a coupling.

[0012] Preferably, the pelletizing blade is in close contact with the outer wall of the pelletizing mesh of the screen plate.

[0013] Preferably, a feed hopper is welded to one end of the top outer wall of the mixing tank, and a discharge pipe is fixedly connected between the mixing tank and the feeding cylinder via a flange.

[0014] Preferably, a rotating support sleeve is welded to the inner wall of the feeding cylinder, and the auger is rotatably connected to the inner wall of the rotating support sleeve.

[0015] Preferably, the feeding cylinder is welded to the inner wall of the support frame.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The fertilizer processing granulator designed in this paper is equipped with a mixing tank and a hot air inlet pipe inside the mixing component. While the mixing rod is mixing the raw materials, hot air is directly introduced into the tank through the inlet pipe to achieve uniform mixing and synchronous drying of materials, reduce heat loss, improve processing efficiency, and has the characteristics of high-efficiency mixing and drying integration.

[0018] 2. The fertilizer processing granulator designed in this paper uses a servo motor to drive the spiral auger for the screw feeder, and the feeding speed can be precisely adjusted. The rotating support sleeve works in conjunction with the spiral auger to enhance rotational stability, avoid material blockage, and ensure continuous and uniform feeding, thus providing precise feeding and stable conveying.

[0019] 3. In this fertilizer processing granulator design, the pelletizing blade is in close contact with the outer wall of the granulation mesh, and the third servo motor drives the main shaft to rotate at high speed, achieving instant cutting of materials, consistent particle size, reduced powder rate, and improved pelleting accuracy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a fertilizer processing granulator proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the internal connection structure of the mixing component of a fertilizer processing granulator proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure of the screw feeder of a fertilizer processing granulator proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the fertilizer pelletizing mechanism of a fertilizer processing granulator proposed in this utility model.

[0024] In the diagram: 1. Support frame; 2. Mixing component; 21. Mixing tank; 22. First motor; 23. Mixing rod; 3. Hot air inlet pipe; 4. Exhaust pipe; 5. Screw feeder; 51. Feeding cylinder; 52. Second servo motor; 53. Screw auger; 6. Fertilizer pelletizing mechanism; 61. Mesh plate; 62. Connecting rod; 63. Mounting plate; 64. Third servo motor; 65. Main shaft; 66. Pelletizer; 7. Feed hopper; 8. Discharge pipe; 9. Rotating support sleeve. Detailed Implementation

[0025] 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.

[0026] Example 1, refer to Figures 1-3 A fertilizer processing granulator includes a support frame 1, a mixing component 2 welded to the top of the inner wall of the support frame 1, a hot air inlet pipe 3 fixedly connected to one end of the outer wall of one side of the mixing component 2 via a flange, and an exhaust pipe 4 fixedly connected to the other end of the top outer wall of the mixing component 2 via a flange. A spiral feeding component 5 is provided at the bottom of the mixing component 2, and a fertilizer pelletizing mechanism 6 is fixedly connected to the outer wall of one end of the spiral feeding component 5 via bolts.

[0027] Reference Figure 2 The mixing component 2 includes a mixing tank 21 welded to the inner wall of the support frame 1, a first motor 22 fixedly connected to the outer wall of one end of the mixing tank 21 by screws, and a mixing rod 23 fixedly connected to the output shaft of the first motor 22 by a coupling.

[0028] In this embodiment, the stirring component 2 is equipped with a stirring tank 21 and a hot air inlet pipe 3. While the stirring rod 23 is stirring the raw materials, hot air is directly introduced into the tank through the inlet pipe, so as to achieve uniform mixing and synchronous drying of materials, reduce heat loss, improve processing efficiency, and have the characteristics of efficient mixing and drying integration.

[0029] Example 2, refer to Figure 4A fertilizer processing granulator includes a fertilizer pelletizing mechanism 6 comprising a screen plate 61, connecting rods 62, a mounting plate 63, a third servo motor 64, a main shaft 65, and a pelletizing blade 66. The screen plate 61 is bolted to the outer wall of the other end of the feeding cylinder 51. The connecting rods 62, which are evenly distributed, are welded to the outer wall of one side of the screen plate 61. The mounting plate 63 is welded to the outer wall of one end of the connecting rods 62. The third servo motor 64 is screwed to the outer wall of one side of the mounting plate 63. The main shaft 65 is fixedly connected to the output shaft of the third servo motor 64 via a coupling. The pelletizing blade 66 is mounted on the outer wall of one end of the main shaft 65.

[0030] In this embodiment, the pelletizing blade 66 is in close contact with the outer wall of the granulation mesh of the screen plate 61, and the third servo motor 64 drives the main shaft 65 to rotate at high speed, thereby achieving instant cutting of materials, consistent particle size, reduced powder rate, and improved pelletizing accuracy.

[0031] Example 3, refer to Figure 3 The spiral feeding component 5 includes a feeding cylinder 51 disposed at the bottom of the mixing tank 21, a second servo motor 52 fixedly connected to the outer wall of one end of the feeding cylinder 51 by screws, and a spiral auger 53 fixedly connected to the output shaft of the second servo motor 52 by a coupling.

[0032] In this embodiment, the spiral feeder 5 is driven by a second servo motor 52 to drive the spiral auger 53, and the feeding speed can be precisely adjusted; the rotating support sleeve 9 cooperates with the spiral auger 53 to enhance rotational stability, avoid material blockage, and ensure continuous and uniform feeding, thus achieving precise feeding and stable conveying.

[0033] Reference Figure 4 The pelletizing blade 66 is tightly attached to the outer wall of the pelletizing mesh of the screen plate 61.

[0034] Reference Figure 1 A feed hopper 7 is welded to one end of the top outer wall of the mixing tank 21, and a discharge pipe 8 is fixedly connected between the mixing tank 21 and the feeding cylinder 51 through a flange.

[0035] Reference Figure 3 A rotating support sleeve 9 is welded to the inner wall of the feeding cylinder 51, and the spiral auger 53 is rotatably connected to the inner wall of the rotating support sleeve 9.

[0036] Reference Figure 1 The feeding cylinder 51 is welded to the inner wall of the support frame 1.

[0037] Working principle:

[0038] Raw material mixing and drying: The raw materials enter the mixing tank 21 through the feed hopper 7. The first motor 22 drives the stirring rod 23 to rotate, so that the materials are mixed evenly. At the same time, hot air is introduced through the hot air inlet pipe 3, and the moisture is discharged through the exhaust pipe 4, achieving simultaneous drying.

[0039] Screw conveyor and quantitative feeding: The mixed material falls into the feeding cylinder 51 through the discharge pipe 8. The second servo motor 52 drives the screw conveyor 53 to rotate, pushing the material at a uniform speed to the mesh plate 61.

[0040] Precision granulation and finished product collection: Under the pressure of the auger 53, the material is extruded into strips through the screen 61. The third servo motor 64 drives the pelletizer 66 to rotate at high speed, cutting the strip material into uniform granules. The granules slide out from under the screen 61 and enter the collection device.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fertilizer processing granulator comprising a support frame (1), characterized in that, The top of the inner wall of the support frame (1) is welded with a stirring part (2), one end of the outer wall of the stirring part (2) is fixedly connected with a hot air inlet pipe (3) through a flange, the other end of the outer wall of the top of the stirring part (2) is fixedly connected with an exhaust pipe (4) through a flange, the bottom of the stirring part (2) is provided with a spiral feeding part (5), and one end of the outer wall of the spiral feeding part (5) is fixedly connected with a fertilizer pelletizing mechanism (6) through bolts. The fertilizer pelletizing mechanism (6) comprises a screen plate (61), a connecting rod (62), a mounting plate (63), a third servo motor (64), a main shaft (65) and a pelletizing cutter (66), wherein the screen plate (61) is fixedly connected to the other end of the outer wall of the feeding cylinder (51) through bolts, the connecting rods (62) are welded to the outer wall of one side of the screen plate (61) at equal distances, the mounting plate (63) is welded to the outer wall of one end of the connecting rod (62), the third servo motor (64) is fixedly connected to the outer wall of one side of the mounting plate (63) through screws, the main shaft (65) is fixedly connected to the output shaft of the third servo motor (64) through a coupling, and the pelletizing cutter (66) is installed on the outer wall of one end of the main shaft (65).

2. A fertilizer processing prilling machine as claimed in claim 1, wherein, The stirring part (2) comprises a stirring tank (21) welded to the inner wall of the support frame (1), a first motor (22) fixedly connected to the outer wall of one end of the stirring tank (21) through screws, and a stirring rod (23) fixedly connected to the output shaft of the first motor (22) through a coupling.

3. A fertilizer processing prill mill according to claim 1, wherein, The spiral feeding part (5) comprises a feeding cylinder (51) arranged at the bottom of the stirring tank (21), a second servo motor (52) fixedly connected to the outer wall of one end of the feeding cylinder (51) through screws, and a spiral auger (53) fixedly connected to the output shaft of the second servo motor (52) through a coupling.

4. A fertilizer processing prill mill according to claim 1 wherein, The pelletizing cutter (66) is tightly attached to the outer wall of the pelletizing screen of the screen plate (61).

5. A fertilizer processing prill mill according to claim 3 wherein, One end of the outer wall of the top of the stirring tank (21) is welded with a feeding hopper (7), and the stirring tank (21) and the feeding cylinder (51) are fixedly connected with a discharge pipe (8) through a flange.

6. A fertilizer processing prill mill according to claim 3 wherein, A rotating support sleeve (9) is welded on the inner wall of the feeding cylinder (51), and the spiral auger (53) is rotatably connected to the inner wall of the rotating support sleeve (9).

7. A fertilizer processing prill mill according to claim 3 wherein, The feeding cylinder (51) is welded to the inner wall of the support frame (1).