Granulation system for sandy fertilizer

Abstract

The utility model discloses a granulation system for sandy fertilizer. The granulation system comprises a mixing box, a first output channel, a granulator, a second output channel, a drying conveyor and a vibrating screen, an inclined first output channel is arranged on the lower portion of the mixing box, the granulator is located at the output end of the lower portion of the first output channel, the lower portion of the granulator is connected with an inclined second output channel, and the drying conveyor is located at the lower end of the second output channel. An outer cover box is arranged on the upper portion of the drying conveyor, and a plurality of hot air inlet pipes are arranged on the side wall of the outer cover box. The output end of the drying conveyor is located on the upper portion of the vibrating screen, the output end of the vibrating screen is connected with the drying and cooling cylinder, and the drying and cooling cylinder is connected with the screening and grading equipment. Equipment for drying, screening and the like after granulation does not exist in an existing granulation process, and the existing granulation process comprises the processes of raw material mixing, extruding, drying, screening, cooling and drying and screening, so that the fertilizer can be conveniently produced and granulated.

Description

Technical Field

[0001] This utility model relates to the field of granulation technology, specifically to a granulation system for sandy fertilizers. Background Technology

[0002] Fertilizer granulation, including its particle size distribution and particle strength, along with its nutrient content, has become part of fertilizer quality standards. Fertilizer granulation improves the physical properties of the product, thus reducing hazards such as moisture absorption, clumping, and dust generation during sales and distribution. Granular fertilizers are suitable for mechanized fertilization, improving fertilization efficiency. Granulation can combine multiple nutrients in a single granule, simplifying fertilization operations. Compared to powdered fertilizers, applying granular fertilizers slows down nutrient dissolution and reduces nutrient loss.

[0003] Granulation of sandy fertilizers often results in low particle strength, difficulty in granulation, and impracticality for industrial production. Therefore, this paper provides a granulation system for sandy fertilizers that incorporates drying and screening processes into the traditional method, facilitating product preparation. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a granulation system for sandy fertilizers.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A granulation system for sandy fertilizer includes: a mixing box, a first output channel, a granulator, a second output channel, a drying conveyor, and a vibrating screen;

[0007] The mixing box has an inclined first output channel at the bottom, the granulator is located at the lower output end of the first output channel, the lower part of the granulator is connected to an inclined second output channel, and the drying conveyor is located at the lower end of the second output channel.

[0008] The upper part of the drying conveyor is equipped with an outer cover box, and multiple hot air inlet pipes are installed on the side wall of the outer cover box;

[0009] The output end of the drying conveyor is located above the vibrating screen, and the output end of the vibrating screen is connected to the drying and cooling cylinder, which is connected to the screening and grading equipment.

[0010] Furthermore: the mixing tank is equipped with a first rotating shaft, which is driven by a first motor, and the first rotating shaft is equipped with stirring blades;

[0011] A mesh screen is installed at the connection between the mixing tank and the first output channel.

[0012] Furthermore: the granulator is provided with a second rotating shaft at the top, and a stirring rod is provided on the second rotating shaft. The second rotating shaft is driven by a second motor.

[0013] The lower granulator is equipped with a third rotating shaft, which is driven by a third motor. The third rotating shaft is connected to the extrusion roller, and the extrusion roller is evenly provided with granulation grooves.

[0014] Furthermore, the granulator at the lower part of the stirring rod is equipped with an arc-shaped plate.

[0015] Furthermore: the outer casing and the drying conveyor form a channel with openings at both ends, the length of the drying conveyor is greater than the length of the outer casing, and air outlets are evenly arranged on the top of the outer casing.

[0016] Furthermore, an air pump is installed on the hot air inlet pipe.

[0017] Furthermore: the vibrating screen includes: a support vibrating screen, a fourth motor, a trough, a fixed frame, a screen, and an output trough;

[0018] The support frame is equipped with an inclined trough with an open top. A vibrating screen is installed on the trough and driven by a fourth motor. A fixing frame is fixed on the trough with screws and nuts, and a screen is installed at the bottom of the fixing frame. Both the trough and the vibrating screen are connected to an output trough.

[0019] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0020] (1) Some granulation processes do not have equipment for drying and screening after granulation. The current granulation process includes: raw material mixing, extrusion, drying, screening, cooling and drying, and screening, which facilitates fertilizer production granulation.

[0021] (2) After being compressed, the fertilizer passes through a drying conveyor. The outer casing and the drying conveyor form a channel with openings at both ends, creating a relatively enclosed space into which hot dry air is introduced. The hot dry air accelerates the drying of the material.

[0022] (3) After the granulated fertilizer passes through the conveyor drying equipment, it enters the vibrating screen. The vibrating screen replaces the traditional drum screen, which is a process update and is more conducive to the granulation of the product. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the mixing box of this utility model.

[0024] Figure 2 This is a schematic diagram of the granulator of this utility model.

[0025] Figure 3 This is a top view of the structure of the drying conveyor and outer casing of this utility model.

[0026] Figure 4This is a schematic diagram of the structure of the vibrating screen of this utility model.

[0027] Figure 5 This is a side view of the mixing box of this utility model.

[0028] Figure 6 This is a side view of the granulator of this utility model.

[0029] Figure 7 This is a top view of the granulator of this utility model.

[0030] In the diagram: 1-mixing box, 2-first rotating shaft, 3-first motor, 4-stirring blade, 5-output channel, 6-granulator, 7-second rotating shaft, 8-stirring rod, 9-second motor, 10-arc plate, 11-third rotating shaft, 12-third motor, 13-granulation tank, 14-second output channel, 15-drying conveyor, 16-outer casing, 17-hot air inlet pipe, 18-air pump, 19-air outlet, 20-vibrating screen, 21-partition screen, 22-extrusion roller, 23-support, 24-vibrating screen, 25-fourth motor, 26-tank body, 27-fixed frame, 28-screen, 29-output tank. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] A granulation system for sandy fertilizer includes: a mixing box 1, a first rotating shaft 2, a first motor 3, a stirring blade 4, an output channel 5, a granulator 6, a second rotating shaft 7, a stirring rod 8, a third motor 9, an arc plate 10, a third rotating shaft 11, a third motor 12, a granulation tank 13, a second output channel 14, a drying conveyor 15, an outer cover box 16, a hot air inlet pipe 17, an air pump 18, an air outlet 19, a vibrating screen 20, a partition screen 21, an extrusion roller 22, a support 23, a vibrating net 24, a fourth motor 25, a tank body 26, a fixing frame 27, a screen 28, and an output tank 29.

[0033] A first rotating shaft 2 is installed inside the mixing tank 1, driven by a first motor 3. A stirring blade 4 is mounted on the first rotating shaft 2. An inclined first output channel 5 is located at the lower part of the mixing tank 1, and a mesh screen 21 is installed at the connection between the mixing tank 1 and the first output channel 5. A granulator 6 is located at the lower end of the first output channel 5. A second rotating shaft 7 is installed on the upper part of the granulator 6, with a stirring rod 8 mounted on it. The second rotating shaft 7 is driven by a second motor 9. Two arc-shaped plates 10 are installed below the stirring rod 8 in the granulator 6. A third rotating shaft 11 is installed at the lower part of the granulator 6, driven by a third motor 12. The third rotating shaft 11 is connected to two extrusion rollers 22. The output port formed between the arc-shaped plates 10 is located between the extrusion rollers 22. Granulation troughs 13 are evenly arranged on the extrusion rollers 22. An inclined second output channel 14 is connected to the lower part of the granulator 6. The output end of the second output channel 14 is located above the drying conveyor 15. The drying conveyor 15 is selected as a conveyor belt, etc. An outer cover box 16 is provided on the upper part of the drying conveyor 15, forming a channel with open ends between the outer cover box 16 and the drying conveyor 15. The length of the drying conveyor 15 is greater than the length of the outer cover box 16. Four hot air inlet pipes 17 are provided on the side wall of the outer cover box 16. An air pump 18 is installed on the hot air inlet pipes 17, which are connected to heating equipment. Air outlets 19 are evenly arranged on the top of the outer cover box 16. The output end of the drying conveyor 15 is located above the vibrating screen 20. The output end of the vibrating screen 20 is connected to the drying cooling cylinder, which is connected to the screening and grading equipment.

[0034] The vibrating screen 20 includes: a support 23, a vibrating net 24, a fourth motor 25, a trough 26, a fixing frame 27, a screen 28, and an output trough 29. The support 23 is provided with an inclined trough 26, which is designed with an open top. The vibrating net 24 is provided on the trough 26 and is driven by the fourth motor 25. The fixing frame 27 is fixed on the trough 26 by screws and nuts. The screen 28 is provided at the lower part of the fixing frame 27. The trough 26 and the vibrating net 24 are both connected to the output trough 29.

[0035] Working process: The raw materials for preparing sandy fertilizer enter the mixing tank 1. The mixing tank 1 has an opening at the top. Inside the mixing tank 1, the first motor 3 drives the first rotating shaft 2 to move, which in turn drives the stirring blade 4 to move, thus performing preliminary mixing of the raw materials. The mixed raw materials pass through the mesh 21 and enter the first output channel 5 for output. After output, they enter the granulator 6. The granulator 6 has an opening at the top. The second motor 9 drives the second rotating shaft 7 to move, which in turn drives the stirring rod 8 to move, thus further mixing the raw materials. The mixed raw materials are output through the output port formed between the two shaping plates 10 and then enter the extruder. The third motor 12 drives the third rotating shaft 11 to move between the pressure rollers 22. The third rotating shaft 11 drives the extrusion rollers 22 to move. The extrusion rollers 22 have granulation grooves 13 to facilitate extrusion granulation. After granulation, the material is output through the second output channel 14 and then enters one end of the drying conveyor 15. The outer cover box 16 and the drying conveyor 15 form a channel with open ends. The hot air inlet pipe 17 enters the formed channel. The granulated raw material moves on the drying conveyor 15 and can be dried with hot air. The dried material is output through the air outlet 19. After the dried granulated fertilizer is output, it enters the vibrating screen 20. Inside the vibrating screen 20, the material first enters the area between the fixed frame 27 and the screen 28. The fourth motor 25 drives the vibrating mesh 24 to move, which in turn moves the trough 26. The trough 26 then moves the fixed frame 27 and the screen 28. The granulated fertilizer is vibrated by the fixed frame 27 and the screen 28 before entering the vibrating mesh 24. The vibration of the mesh 24 causes sieving. Both the trough 26 and the vibrating mesh 24 are connected to output slots 29 for easy output. The fixed frame 27 and the screen 28 can be removed and fixed to the trough 26 with screws and nuts. The output end of the vibrating screen 20 is connected to a drying and cooling cylinder, which is connected to a sieving and grading device. This facilitates cooling and drying before sieving, followed by packaging and other processing.

[0036] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A granulation system for sandy fertilizers, characterized in that: include: Mixing box (1), first output channel (5), granulator (6), second output channel (14), drying conveyor (15), vibrating screen (20); The mixing box (1) is provided with an inclined first output channel (5) at the bottom. The granulator (6) is located at the lower output end of the first output channel (5). The granulator (6) is connected to an inclined second output channel (14) at the bottom. The drying conveyor (15) is located at the lower end of the second output channel (14). The upper part of the drying conveyor (15) is provided with an outer cover box (16), and multiple hot air inlet pipes (17) are provided on the side wall of the outer cover box (16); the output end of the drying conveyor (15) is located above the vibrating screen (20), the output end of the vibrating screen (20) is connected to the drying cooling cylinder, and the drying cooling cylinder is connected to the screening and grading equipment.

2. The granulation system for sandy fertilizer according to claim 1, characterized in that: The mixing box (1) is provided with a first rotating shaft (2), which is driven by a first motor (3), and a stirring blade (4) is provided on the first rotating shaft (2); A mesh (21) is provided at the connection between the mixing box (1) and the first output channel (5).

3. The granulation system for sandy fertilizer according to claim 1, characterized in that: The granulator (6) is provided with a second rotating shaft (7) on its upper part, and a stirring rod (8) is provided on the second rotating shaft (7). The second rotating shaft (7) is driven by a second motor (9). The lower granulator (6) is equipped with a third rotating shaft (11), which is driven by a third motor (12). The third rotating shaft (11) is connected to the extrusion roller (22), and the extrusion roller (22) is uniformly provided with granulation troughs (13).

4. The granulation system for sandy fertilizer according to claim 3, characterized in that: The granulator (6) at the lower part of the stirring rod (8) is equipped with an arc plate (10).

5. The granulation system for sandy fertilizer according to claim 1, characterized in that: The outer casing (16) and the drying conveyor (15) form a channel with openings at both ends. The length of the drying conveyor (15) is greater than the length of the outer casing (16). Air outlets (19) are evenly arranged on the top of the outer casing (16).

6. The granulation system for sandy fertilizer according to claim 1, characterized in that: An air pump (18) is installed on the hot air inlet pipe (17).

7. The granulation system for sandy fertilizer according to claim 1, characterized in that: The vibrating screen (20) includes: a support (23), a vibrating net (24), a fourth motor (25), a trough (26), a fixing frame (27), a screen (28), and an output trough (29); An inclined trough (26) is provided on the support (23). The trough (26) is designed with an open top. A vibrating screen (24) is provided on the trough (26). The vibrating screen (24) is driven by a fourth motor (25). A fixing frame (27) is fixed on the trough (26) by screws and nuts. A screen (28) is provided at the bottom of the fixing frame (27). Both the trough (26) and the vibrating screen (24) are connected to an output trough (29).

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