Multi-layer coating equipment for nitrogen-phosphorus-potassium compound fertilizer

Abstract

The utility model relates to the technical field of compound fertilizer production, in particular to multi-layer coating equipment for nitrogen-phosphorus-potassium compound fertilizer, which comprises a frame, a coating component and an anti-sticking component are arranged on the frame, the coating component comprises a box, a connecting plate is fixedly connected onto the frame, and the connecting plate is fixedly connected onto the frame. A water passing pipe is installed on one side of the connecting plate, and one side of the water passing pipe fixedly communicates with an atomizing nozzle. The device has the beneficial effects that a coating agent is poured into a water tank, a pump body is started, the coating agent is poured into an atomizing spray head through a second connecting pipe, a first connecting pipe and a water passing pipe, then a nitrogen-phosphorus-potassium compound fertilizer is poured into a top box body, the coating agent sprayed out of the atomizing spray head is used for first-time coating, and under the action of the connecting pipes, the nitrogen-phosphorus-potassium compound fertilizer is coated for the second time; nitrogen-phosphorus-potassium compound fertilizer falls into the bottom box body, is coated for the second time through the coating agent sprayed by the atomizing spray head and is finally discharged from the discharging pipe, and the coating effect is improved through multiple times of coating.

Description

Technical Field

[0001] This utility model relates to the field of compound fertilizer production technology, specifically to a multi-layer coating equipment for nitrogen, phosphorus, and potassium compound fertilizer. Background Technology

[0002] Compound fertilizer coating refers to covering the surface of fertilizer granules with a film. The purpose of coating is to allow the fast-acting nutrients inside the coated fertilizer to be released slowly after it is applied to the soil, thereby prolonging the fertilizer effect.

[0003] Utility model patent CN222138990U discloses a high-tower compound fertilizer coating device. This device uses a conveying cylinder with an inclined inner wall to transport materials, performing coating operations simultaneously. This allows for more uniform material flow within the cylinder, resulting in even spraying of the coating agent. This significantly improves the coating effect, making the compound fertilizer granules smoother and cleaner, thus enhancing product quality. However, the existing technical solutions have the following shortcomings: they only perform a simple one-time coating of the compound fertilizer granules, resulting in poor coating effectiveness; and during the coating process, fertilizer granules tend to accumulate within the cylinder, easily causing adhesion and affecting the coating quality. Therefore, this paper proposes a multi-layer coating device for nitrogen, phosphorus, and potassium compound fertilizer to address these problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model proposes a multi-layer coating equipment for nitrogen, phosphorus, and potassium compound fertilizers, in order to solve the problems of poor coating effect and easy adhesion of fertilizers during the coating process.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A multi-layer coating equipment for nitrogen, phosphorus and potassium compound fertilizer includes a frame, a coating component and an anti-sticking component.

[0007] The coating assembly includes a housing, a connecting plate fixedly connected to the frame, a water pipe installed on one side of the connecting plate, an atomizing nozzle fixedly connected to one side of the water pipe, a water tank installed on the rear side of the frame, a pump body fixedly connected to the top of the water tank, a first connecting pipe fixedly connected to the water pipe, and a second connecting pipe fixedly connected to the output end of the pump body.

[0008] Preferably, there are two boxes arranged vertically, both of which are fixedly connected to the frame. The inner top wall of the top box is fixedly connected to a feed pipe, and the inner bottom wall of the bottom box is fixedly connected to a discharge pipe. A connecting pipe is fixedly connected between the two boxes.

[0009] Preferably, there are two connecting plates, each located on the rear side of one of the two housings, and the number of atomizing nozzles on a single water pipe is no less than five and they are evenly spaced, with the atomizing nozzles extending into the housing.

[0010] Preferably, the atomizing nozzle is fixedly connected to the connecting plate, the first connecting pipe connects the two water pipes, the second connecting pipe connects to the first connecting pipe, and the input end of the pump body extends into the water tank.

[0011] Preferably, the anti-sticking component includes a drive motor, a double helical stirring rod is rotatably connected inside the housing, a transmission wheel is fixedly connected to the outer side of the double helical stirring rod, and a belt is driven to the outer side of the transmission wheel.

[0012] Preferably, the drive motor is fixedly connected to the left side of the frame, and one side of the double helix stirring rod is rotatably connected to the box body and the other side extends to the outside of the box body.

[0013] Preferably, there are two drive wheels, each located on the outside of one of the two housings. The belt is looped around the outside of the two drive wheels, and the left side of the bottom double-helix stirring rod is fixedly connected to the output shaft of the drive motor.

[0014] Compared with the prior art, the beneficial effects of this utility model of a multi-layer coating device for nitrogen, phosphorus, and potassium compound fertilizer are:

[0015] First, pour the coating agent into the water tank, start the pump, and pour the coating agent into the atomizing nozzle through the second connecting pipe, the first connecting pipe, and the water pipe. Then, pour the nitrogen, phosphorus, and potassium compound fertilizer into the top chamber. The coating agent sprayed through the atomizing nozzle performs the first coating. Under the action of the connecting pipe, the nitrogen, phosphorus, and potassium compound fertilizer falls into the bottom chamber, where the coating agent sprayed through the atomizing nozzle performs the second coating. Finally, it is discharged from the outlet pipe. Through multiple coatings, the coating effect is improved.

[0016] Secondly, during the coating process of nitrogen, phosphorus, and potassium compound fertilizer, the drive motor is started to drive the bottom double helix stirring rod to rotate. Under the action of the transmission wheel and belt, the top double helix stirring rod rotates synchronously, which fully stirs the nitrogen, phosphorus, and potassium compound fertilizer in the box 201 to prevent it from sticking together during the coating process. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of another axial integral structure of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the water tank and related parts of this utility model.

[0021] The components include: 1. Frame; 2. Coating assembly; 201. Housing; 202. Connecting plate; 203. Water pipe; 204. Atomizing nozzle; 205. Water tank; 206. Pump body; 207. First connecting pipe; 208. Second connecting pipe; 3. Anti-sticking assembly; 301. Drive motor; 302. Double helix stirring rod; 303. Transmission wheel; 304. Belt. Detailed Implementation

[0022] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0023] Please refer to the following specific embodiment for a multi-layer coating device for nitrogen, phosphorus, and potassium compound fertilizer. Figure 1 , Figure 2 , Figure 3 and Figure 4 It includes a frame 1, a film coating assembly 2 and an anti-sticking assembly 3 on the frame 1;

[0024] The coating assembly 2 includes a housing 201, a connecting plate 202 fixedly connected to the frame 1, a water pipe 203 installed on one side of the connecting plate 202, an atomizing nozzle 204 fixedly connected to one side of the water pipe 203, a water tank 205 installed on the rear side of the frame 1, a pump body 206 fixedly connected to the top of the water tank 205, a first connecting pipe 207 fixedly connected to the water pipe 203, and a second connecting pipe 208 fixedly connected to the output end of the pump body 206.

[0025] There are two boxes 201 arranged vertically. Both boxes 201 are fixedly connected to the frame 1. The inner top wall of the top box 201 is fixedly connected to the feed pipe, and the inner bottom wall of the bottom box 201 is fixedly connected to the discharge pipe. The two boxes 201 are fixedly connected to each other by a connecting pipe.

[0026] The design employs two boxes 201 distributed vertically, allowing for multi-layer coating in sections, thus improving coating efficiency and uniformity. The feed pipe of the top box 201 and the discharge pipe of the bottom box 201 form a continuous production process, reducing material interruptions and improving processing efficiency.

[0027] There are two connecting plates 202, which are located on the rear side of the two boxes 201 respectively. There are no fewer than five atomizing nozzles 204 on a single water pipe 203, which are evenly distributed and extend into the box 201.

[0028] Two connecting plates 202 correspond to the upper and lower boxes 201 respectively, independently controlling the supply of coating agent and enhancing the flexibility of the equipment; each water pipe 203 is equipped with no less than five atomizing nozzles 204, and the nozzles extend into the box 201 to achieve uniform coverage of coating agent and avoid local over- or under-application.

[0029] The atomizing nozzle 204 is fixedly connected to the connecting plate 202. The first connecting pipe 207 connects the two water pipes 203. The second connecting pipe 208 connects the first connecting pipe 207. The input end of the pump body 206 extends into the water tank 205.

[0030] The first connecting pipe 207 connects two water pipes 203, simplifying the pipeline layout and facilitating maintenance; the pump body 206 is connected to the first connecting pipe 207 through the second connecting pipe 208, providing stable water flow pressure, ensuring consistent atomization effect, and improving coating quality.

[0031] The anti-stick component 3 includes a drive motor 301, a double helical stirring rod 302 rotatably connected inside the housing 201, a transmission wheel 303 fixedly connected to the outside of the double helical stirring rod 302, and a belt 304 drivingly connected to the outside of the transmission wheel 303.

[0032] The double-helix mixing rod 302 forces the fertilizer and coating agent to mix in the box 201, solving the problem of particle adhesion during the coating process and improving the uniformity of coating; the drive wheel 303 and belt 304 realize the synchronous mixing in the two boxes 201, ensuring consistent mixing effect and improving the overall efficiency of the equipment.

[0033] The drive motor 301 is fixedly connected to the left side of the frame 1, and one side of the double helix stirring rod 302 is rotatably connected to the box 201 and the other side extends to the outside of the box 201.

[0034] The drive motor 301 is centrally located on the left side of the frame 1, which lowers the center of gravity of the equipment and improves stability; one side of the double helix stirring rod 302 extends to the outside of the box 201, which facilitates the installation of the transmission wheel 303 and improves the maintainability of the equipment.

[0035] There are two drive wheels 303, which are located on the outside of the two boxes 201 respectively. The belt 304 is sleeved on the outside of the two drive wheels 303. The left side of the bottom double helix stirring rod 302 is fixedly connected to the output shaft of the drive motor 301.

[0036] The transmission wheel 303 and belt 304 enable the linkage of the dual-box 201 stirring system, reducing the number of drive motors 301 and lowering energy consumption and failure rate; the bottom double helix stirring rod 302 is directly connected to the output shaft of the drive motor 301, simplifying the transmission chain, improving power transmission efficiency, and enhancing equipment reliability.

[0037] Its working principle is as follows: First, the coating agent for nitrogen, phosphorus, and potassium compound fertilizer is poured into water tank 205. By starting pump 206, with the second connecting pipe 208, the first connecting pipe 207, and the water pipe 203 connected, the coating agent is sprayed into tank 201 through atomizing nozzle 204. Then, nitrogen, phosphorus, and potassium compound fertilizer is poured into the top tank 201 through the feed pipe. The coating agent sprayed through atomizing nozzle 204 performs the first coating. Under the action of the connecting pipe, the nitrogen, phosphorus, and potassium compound fertilizer falls into... In the bottom chamber 201, the coating agent sprayed by the atomizing nozzle 204 performs a second coating. During this coating process, the drive motor 301 is started to drive the bottom double helix stirring rod 302 to rotate. Under the action of the transmission wheel 303 and the belt 304, the top double helix stirring rod 302 rotates synchronously, which fully stirs the nitrogen, phosphorus and potassium compound fertilizer in the chamber 201 to prevent it from sticking together during the coating process. The nitrogen, phosphorus and potassium compound fertilizer that has completed two coatings is finally discharged from the discharge pipe.

[0038] The above technical solution not only improves the coating effect of nitrogen, phosphorus and potassium compound fertilizer, but also prevents them from sticking together during the coating process.

[0039] It should be noted that, although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nitrogen, phosphorus and potassium compound fertilizer multi-layer coating device comprising a rack (1), characterized in that: The rack (1) is provided with a film coating assembly (2), and the rack (1) is provided with an anti-sticking assembly (3). The film coating assembly (2) comprises a box body (201), the rack (1) is fixedly connected with a connecting plate (202), one side of the connecting plate (202) is provided with a water pipe (203), one side of the water pipe (203) is fixedly connected with an atomizing nozzle (204), the rear side of the rack (1) is provided with a water tank (205), the top of the water tank (205) is fixedly connected with a pump body (206), the water pipe (203) is fixedly connected with a first connecting pipe (207), and the output end of the pump body (206) is fixedly connected with a second connecting pipe (208).

2. The multi-layer coating equipment for nitrogen, phosphorus and potassium compound fertilizer according to claim 1, characterized in that: The number of the box body (201) is two and is distributed in an upper and lower manner, both of the two box bodies (201) are fixedly connected with the rack (1), the inner top wall of the top box body (201) is fixedly connected with a feeding pipe, the inner bottom wall of the bottom box body (201) is fixedly connected with a discharging pipe, and the two box bodies (201) are fixedly connected with a communication pipe.

3. The multi-layer coating equipment for nitrogen, phosphorus and potassium compound fertilizer according to claim 1, characterized in that: The number of the connecting plate (202) is two and is located at the rear side of the two box bodies (201) respectively, the number of the atomizing nozzles (204) on a single water pipe (203) is not less than five and is distributed at equal intervals, and the atomizing nozzles (204) extend into the box body (201).

4. The multi-layer coating apparatus for nitrogen, phosphorus and potassium compound fertilizer according to claim 1, characterized in that: The atomizing nozzles (204) are fixedly connected with the connecting plate (202), the first connecting pipe (207) communicates the two water pipes (203), the second connecting pipe (208) communicates with the first connecting pipe (207), and the input end of the pump body (206) extends into the water tank (205).

5. The multi-layer coating apparatus for nitrogen, phosphorus and potassium compound fertilizer according to claim 1, characterized in that: The anti-sticking assembly (3) comprises a driving motor (301), the box body (201) is rotatably connected with a double-spiral stirring rod (302), the outer side of the double-spiral stirring rod (302) is fixedly connected with a transmission wheel (303), and the outer side of the transmission wheel (303) is drivingly connected with a belt (304).

6. The multi-layer coating apparatus for nitrogen, phosphorus and potassium compound fertilizer according to claim 5, characterized in that: The driving motor (301) is fixedly connected to the left side of the rack (1), one side of the double-spiral stirring rod (302) is rotatably connected with the box body (201) and the other side extends to the outer side of the box body (201).

7. The multi-layer coating apparatus for nitrogen, phosphorus and potassium compound fertilizer according to claim 5, characterized in that: The number of the transmission wheel (303) is two and is located at the outer side of the two box bodies (201) respectively, the belt (304) is sleeved on the outer sides of the two transmission wheels (303), and the left side of the bottom double-spiral stirring rod (302) is fixedly connected with the output shaft of the driving motor (301).

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