Film coating device for fertilizer production

Abstract

The utility model discloses a coating device for fertilizer production in the technical field of fertilizer production, which comprises a mixing box, one side of the mixing box is connected with a drying box, the bottom of the drying box is connected with a liquid carrying box, the inner side of the mixing box and the inner side of the drying box are provided with material guide cavities, the bottom of the mixing box is connected with a liquid outlet pipe, and the liquid outlet pipe is connected with a liquid outlet pipe. A discharging pipe is installed at the bottom, close to one end, of the material guiding cavity, fertilizer and coating liquid enter the mixing box, the coating liquid wraps the fertilizer for mixing through the coating assembly, the filter plate can filter the fertilizer, the coating liquid falls into the discharging pipe through the filter plate, and a material guiding piece in the material guiding cavity can push the fertilizer to be guided out through the discharging pipe. The problems that when fertilizer is coated by existing equipment, fertilizer coating is not uniform, the drying degree after fertilizer coating is not uniform, blockage is caused due to the fact that materials are prone to accumulation in the discharging process, waste is easily caused due to the fact that coating liquid flows out in the drying process, and the coating liquid is inconvenient to recycle are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizer production, in particular to a film coating device for fertilizer production. Background Art

[0002] Granular compound fertilizer is a recognized and reliable method to address the current problem of rapid nutrient outflow and inability to act on crops for a long time. The surface of slow-release fertilizer granules is usually wrapped with a biodegradable coating. Water penetrates into the fertilizer through this coating, evenly dissolving the nutrients in the granules. The dissolved nutrients then seep out of the coating as the external environment changes. Compound fertilizer coating refers to covering the surface of the fertilizer granules with a layer of film. Existing compound fertilizer coating devices only perform simple and extensive coating on compound fertilizer granules. Existing equipment is prone to uneven coating when coating fertilizers, affecting the dissolution and absorption of fertilizers.

[0003] When existing equipment is used to coat fertilizers, the fertilizer coating is unevenly wrapped, the degree of drying after coating is uneven, the material is easily accumulated and blocked when it is unloaded, and the coating liquid easily flows out during the drying process, causing waste, making it inconvenient to recover the coating liquid for recycling. Therefore, those skilled in the art provide a coating device for fertilizer production to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present utility model is to provide a film coating device for fertilizer production to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a film coating device for fertilizer production, comprising a mixing box, one side of the mixing box is connected to a drying box, the bottom of the drying box is connected to a liquid carrying tank, a material guide cavity is formed inside the mixing box and the drying box, a liquid outlet pipe is connected to the bottom of the mixing box, and a material outlet pipe is installed at the bottom of the material guide cavity near one end;

[0006] A drying component is installed inside the drying box, a circulation component is installed at the bottom of the drying box, a membrane assembly is installed inside the drying box, a material guide component is installed inside the material guide cavity, and a solenoid valve is installed inside the liquid outlet pipe.

[0007] Preferably: the drying component includes three groups of leakage holes arranged circumferentially at the bottom of the material guide cavity, a filter screen is embedded in the inner wall of the material guide cavity, a plurality of heating tubes are evenly arranged installed inside the drying box and near the top, a plurality of fans are evenly arranged installed on the top of the drying box, and each group of leakage holes includes multiple.

[0008] Preferably: the coating assembly includes a first motor installed on the top of the mixing box, the bottom of the first motor is connected to a rotating shaft, the outer side of the rotating shaft is connected to a plurality of circumferentially arranged stirring racks, the outer sides of the plurality of stirring racks are connected to stirring plates, and the two sides of the stirring rack are fixedly connected to the rotating shaft and the stirring plate respectively.

[0009] Preferably, a material spreading plate is connected to the outside of the rotating shaft, a material guide plate is connected to the inside of the mixing box near the bottom, and the material spreading plate is umbrella-shaped.

[0010] Preferably, the material guide member includes a fixed shaft passing through the inner side of the material guide cavity, a push plate is mounted on the outer side of the fixed shaft, a second motor is connected to one end of the fixed shaft on the other side of the mixing box, and the push plate is spiral.

[0011] Preferably, the circulation member includes a liquid guide pipe installed on one side of the liquid carrying tank, the bottom of the discharge pipe is connected to a drain pipe, the top of the liquid guide pipe is connected to a liquid pump, the top of the liquid pump is connected to a liquid inlet pipe, and the liquid inlet pipe is connected to a mixing tank.

[0012] Preferably, a fixing column is connected to the inner side of the stirring frame, and a plurality of stirring rods arranged evenly are connected to both sides of the fixing column.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the present invention, a drying box, a liquid carrying box and a guide cavity are provided. The fertilizer and the coating liquid enter the mixing box and the coating liquid is wrapped with the fertilizer by the coating component for mixing. The solenoid valve in the discharge pipe can control the discharge and closing of the coating liquid. The filter plate is located at the top of the discharge pipe and on one side of the guide cavity. The filter plate can filter the fertilizer. The coating liquid falls into the discharge pipe through the filter plate. The guide piece in the guide cavity can push the fertilizer to be discharged through the discharge pipe. The drying piece on the top of the drying box can dry the wrapped fertilizer.

[0015] 2. In the present invention, by setting leakage holes, filter plates, heating tubes and fans, multiple fans blow air to the inside of the drying box, and then the air is heated by the heating tube, and then the hot air is blown into the material guide cavity, so that the hot air heats and dries the coated fertilizer. The filter plate can screen and filter the coating liquid and the fertilizer, and the coating liquid falls into the liquid carrying box through the leakage hole at the bottom of the filter plate and is collected for recycling.

[0016] 3. In the present invention, by setting a rotating shaft, a stirring frame and a stirring plate, the first motor can drive the rotating shaft to rotate, the cross-section of the stirring plate is spiral, and the rotating shaft can drive the stirring plate to rotate through the stirring frame, so that the stirring frame and the stirring plate stir and mix the fertilizer and the coating liquid, thereby improving the efficiency and uniformity of the equipment's fertilizer coating operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a left-side cutaway perspective view of the overall structure of the utility model;

[0019] Figure 3 The overall structure of the utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the rotating shaft, stirring frame, stirring plate, spreading plate, fixed column and stirring rod structure of the overall structure of the utility model.

[0021] In the figure: 1. Mixing box; 2. Drying box; 3. Liquid carrying box; 4. Material guide chamber; 5. Liquid outlet pipe; 6. Discharge pipe; 7. Filter plate; 8. Liquid leakage hole; 9. Filter screen; 10. Heating tube; 11. Fan; 12. First motor; 13. Rotating shaft; 14. Stirring frame; 15. Stirring plate; 16. Spreading plate; 17. Material guide plate; 18. Fixed shaft; 19. Pushing plate; 20. Second motor; 21. Liquid guide pipe; 22. Liquid discharge pipe; 23. Liquid pump; 24. Liquid inlet pipe; 25. Fixed column; 26. Stirring rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 4 In an embodiment of the utility model, a coating device for fertilizer production includes a mixing box 1, a drying box 2 is connected to one side of the mixing box 1, a liquid carrying tank 3 is connected to the bottom of the drying box 2, a material guide cavity 4 is opened inside the mixing box 1 and the drying box 2, a liquid discharge pipe 5 is connected to the bottom of the mixing box 1, a discharge pipe 6 is installed at the bottom of the material guide cavity 4 and near one end, a filter plate 7 is embedded in the top of the discharge pipe 6, a drying part is installed inside the drying box 2, a circulation part is installed at the bottom of the drying box 2, a coating assembly is installed inside the drying box 2, a material guide part is installed inside the material guide cavity 4, and a solenoid valve is installed inside the liquid discharge pipe 5.

[0024] During use, the fertilizer and the coating liquid enter the mixing box 1 and the coating liquid is wrapped by the coating component to mix the fertilizer. The solenoid valve in the discharge pipe 6 can control the discharge and closing of the coating liquid. The filter plate 7 is located at the top of the discharge pipe 6 and on the side of the guide cavity 4. The filter plate 7 can filter the fertilizer. The coating liquid falls into the discharge pipe 6 through the filter plate 7. The guide part in the guide cavity 4 can push the fertilizer to be discharged through the discharge pipe 6. The drying part on the top of the drying box 2 can dry the wrapped fertilizer.

[0025] In one embodiment, specifically, the drying part includes three groups of leakage holes 8 arranged circumferentially at the bottom of the material guide cavity 4, a filter screen 9 is embedded in the inner wall of the material guide cavity 4, a plurality of heating tubes 10 are evenly arranged installed on the inside of the drying box 2 and near the top, and a plurality of fans 11 are evenly arranged installed on the top of the drying box 2, and each group of leakage holes 8 includes multiple.

[0026] Among them, multiple fans 11 blow air to the inside of the drying box 2, and then the air is heated by the heating tube 10, and then the hot air is blown into the material guide cavity 4, so that the hot air heats and dries the coated fertilizer. The filter plate 9 can screen and filter the coating liquid and the fertilizer. The coating liquid falls into the liquid carrying tank 3 through the leakage hole 8 at the bottom of the filter plate 9 and is collected for recycling.

[0027] Furthermore, the coating assembly includes a first motor 12 installed on the top of the mixing box 1, the bottom of the first motor 12 is connected to a rotating shaft 13, the outside of the rotating shaft 13 is connected to a plurality of circumferentially arranged stirring frames 14, the outside of the plurality of stirring frames 14 is connected to a stirring plate 15, the outside of the rotating shaft 13 is connected to a spreading plate 16, the inside of the mixing box 1 and near the bottom is connected to a guide plate 17, the inside of the stirring frame 14 is connected to a fixed column 25, and both sides of the fixed column 25 are respectively connected to a plurality of evenly arranged stirring rods 26, the spreading plate 16 is umbrella-shaped, and the two sides of the stirring frame 14 are respectively fixedly connected to the rotating shaft 13 and the stirring plate 15.

[0028] In one embodiment, specifically, the guide plate 17 can guide the coating liquid and fertilizer downward, the spreading plate 16 can swing the fertilizer and coating liquid, the first motor 12 can drive the rotating shaft 13 to rotate, the stirring plate 15 has a spiral cross-section, the rotating shaft 13 can drive the stirring plate 15 to rotate through the stirring frame 14, and the stirring frame 14 can drive multiple stirring rods 26 through the fixed column 25 to stir and mix the coating liquid and fertilizer again, so that the stirring frame 14 and the stirring plate 15 stir and mix the fertilizer and the coating liquid, thereby improving the efficiency and uniformity of the equipment's fertilizer coating operation.

[0029] Among them, the material guiding part includes a fixed shaft 18 passing through the inner side of the material guiding cavity 4, and a push plate 19 is mounted on the outer side of the fixed shaft 18. A second motor 20 is connected to the other side of the mixing box 1 and located at one end of the fixed shaft 18. The push plate 19 is spiral-shaped. The second motor 20 can drive the fixed shaft 18 to rotate, and then the fixed shaft 18 can drive the push plate 19 to push the material in the material guiding cavity 4 to perform material guiding operations, thereby improving the efficiency and uniformity of material drying.

[0030] Furthermore, the circulation component includes a liquid guide tube 21 installed on one side of the liquid carrying tank 3, a drainage pipe 22 is connected to the bottom of the discharge pipe 6, a liquid pump 23 is connected to the top of the liquid guide tube 21, and a liquid inlet pipe 24 is connected to the top of the liquid pump 23. The liquid inlet pipe 24 is connected to the mixing tank 1, and the liquid pump 23 is used to pump the coating liquid in the liquid carrying tank 3 through the liquid guide tube 21. At the same time, the solenoid valve is opened to introduce the coating liquid into the liquid guide tube 21 through the drainage pipe 22 at the bottom of the discharge pipe 6, and then the liquid pump 23 pumps the coating liquid through the liquid inlet pipe 24 and re-introduces it into the mixing tank 1 for recycling.

[0031] The working principle of this utility model:

[0032] First, the fertilizer and coating liquid enter the mixing box 1 and the coating liquid is wrapped by the coating component to mix the fertilizer. At this time, the guide plate 17 guides the coating liquid and fertilizer downward, and then starts the first motor 12 to drive the rotating shaft 13 to rotate. The rotating shaft 13 drives the stirring plate 15 to rotate through the stirring frame 14. At this time, the stirring frame 14 and the stirring plate 15 stir and mix the fertilizer and the coating liquid. At the same time, the spreading plate 16 swings the fertilizer and the coating liquid, and then starts the second motor 20 to drive the fixed shaft 18 to rotate. Then the fixed shaft 18 drives the pushing plate 19 to push the material in the guide cavity 4 to carry out the material guiding operation. Then, multiple fans 11 are used to blow air into the inside of the drying box 2, and then the air is heated by the heating tube 10. Then the hot air is blown into the guide cavity 4, so that the hot air heats and dries the coated fertilizer. At this time, the pushing plate 19 pushes the material out of the drying box 2 through the discharge pipe 6.

[0033] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A film coating device for fertilizer production, comprising a mixing box (1), characterized in that: One side of the mixing box (1) is connected to a drying box (2), the bottom of the drying box (2) is connected to a liquid carrying box (3), a material guide cavity (4) is provided inside the mixing box (1) and the drying box (2), a liquid outlet pipe (5) is connected to the bottom of the mixing box (1), a discharge pipe (6) is installed at the bottom of the material guide cavity (4) and near one end, and a filter plate (7) is embedded in the top of the discharge pipe (6); A drying component is installed inside the drying box (2), a circulation component is installed at the bottom of the drying box (2), a film coating assembly is installed inside the drying box (2), a material guide component is installed inside the material guide cavity (4), and a solenoid valve is installed inside the liquid outlet pipe (5).

2. A film coating device for fertilizer production according to claim 1, characterized in that: The drying element comprises three groups of leakage holes (8) arranged circumferentially at the bottom of the material guide cavity (4); a filter screen (9) is embedded in the inner wall of the material guide cavity (4); a plurality of uniformly arranged heating tubes (10) are installed inside and near the top of the drying box (2); a plurality of uniformly arranged fans (11) are installed on the top of the drying box (2); and each group of the leakage holes (8) comprises a plurality of fans.

3. A film coating device for fertilizer production according to claim 2, characterized in that: The coating assembly comprises a first motor (12) mounted on the top of a mixing box (1); a rotating shaft (13) is connected to the bottom of the first motor (12); a plurality of stirring racks (14) arranged in a circumferential manner are connected to the outside of the rotating shaft (13); a plurality of stirring racks (14) are connected to the outside of the plurality of stirring racks (14); and a stirring plate (15) is fixedly connected to the rotating shaft (13) and the stirring plate (15) on both sides of the stirring rack (14).

4. A film coating device for fertilizer production according to claim 3, characterized in that: The outer side of the rotating shaft (13) is connected to a material spreading plate (16), and the inner side of the mixing box (1) and near the bottom is connected to a material guide plate (17), and the material spreading plate (16) is umbrella-shaped.

5. The coating device for fertilizer production according to claim 2, characterized in that: The material guide member comprises a fixed shaft (18) passing through the inner side of the material guide cavity (4); a push plate (19) is mounted on the outer side of the fixed shaft (18); a second motor (20) is connected to one end of the fixed shaft (18) on the other side of the mixing box (1); and the push plate (19) is spiral-shaped.

6. A film coating device for fertilizer production according to claim 2, characterized in that: The circulation component comprises a liquid guide tube (21) installed on one side of the liquid carrying tank (3); the bottom of the discharge pipe (6) is connected to a liquid discharge pipe (22); the top of the liquid guide tube (21) is connected to a liquid pump (23); the top of the liquid pump (23) is connected to a liquid inlet pipe (24); and the liquid inlet pipe (24) is communicated with the mixing tank (1).

7. A film coating device for fertilizer production according to claim 3, characterized in that: A fixed column (25) is connected to the inner side of the stirring frame (14), and a plurality of stirring rods (26) arranged evenly are respectively connected to both sides of the fixed column (25).

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