Coating device for high-tower compound fertilizer production

Abstract

The utility model relates to the technical field of compound fertilizer production, and discloses a coating device for high-tower compound fertilizer production, which comprises a bottom frame and a roll-over stand arranged on the upper surface of the bottom frame, and one end of the roll-over stand is hinged with the bottom frame. According to the film coating device for high-tower compound fertilizer production, through the structural design from crests to troughs of the wavy overturning plates, falling materials form a multi-direction material distribution path in the rotating process of the rotary drum, materials are evenly diffused, meanwhile, compared with a traditional baffle, the contact area of the materials is increased, the overturning amount is increased, and the particle dispersion uniformity is remarkably improved; the two ends of the rotary drum are combined with conical closing openings at the two ends of the rotary drum, axial displacement of materials is effectively limited, the problem that the materials overflow due to end openings of a traditional straight drum structure is solved, the spraying box reciprocates under driving of an air cylinder and is matched with a multi-nozzle array to form a dynamic covering spraying area, and a spraying blind area caused by the distance of a fixed spraying head set is eliminated; and materials can be uniformly blown, and the curing efficiency of the materials is improved.

Description

Technical Field

[0001] This utility model relates to the field of compound fertilizer production technology, specifically a coating device for high-tower compound fertilizer production. Background Technology

[0002] The high-tower compound fertilizer coating machine is one of the key pieces of equipment in the compound fertilizer production process. Its main function is to uniformly spray a coating agent onto the surface of compound fertilizer granules to improve the compound fertilizer's anti-caking, moisture-proof, and slow-release properties.

[0003] An existing patent (publication number: CN222138990U) discloses a high-tower compound fertilizer coating device, including a floor with pulley seats on both the left and right sides of the top of the floor. A motor is detachably mounted in the middle of the top of the floor, and the output end of the motor is locked with a gear via a coupling. A column is located on the left side of the top of the floor, and a feed pipe is located at the top of the column. The device also includes a cylinder with pulleys interference-fitted to its outer wall and slidably connected to the pulley seats. A toothed ring is located in the middle of the outer wall of the cylinder and meshes with the gear. A conveying cylinder is located on the inner wall of the cylinder via a connecting block. This invention uses a conveying cylinder with an inclined inner wall to transport materials and performs coating operations simultaneously. This allows for more uniform flow of materials inside the cylinder, resulting in uniform spraying of the coating agent. This significantly improves the coating effect, making the surface of the compound fertilizer granules smoother and cleaner, thus improving product quality.

[0004] The material is conveyed using a feed cylinder with an inclined inner wall, and a coating operation is performed simultaneously with the material conveying. This allows the material to flow more evenly inside the cylinder, thereby achieving uniform spraying of the coating agent, which significantly improves the coating effect. However, during the spraying process of the above-mentioned coating device, due to the physical gap between adjacent nozzles, the coating agent exhibits an alternating "peak-trough" distribution along the axial direction of the cylinder. Some particles form "bare spots" because they are not covered by the atomized coating agent, resulting in uneven coating. Secondly, during the rotation of the cylinder, the material is lifted to a higher position by the baffle. Although the rotation of the cylinder can lift the material, due to its geometric characteristics, the material can only be scattered tangentially along the baffle, and cannot achieve sufficient diffusion. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a coating device for high-tower compound fertilizer production, which has advantages such as good coating effect and solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coating device for high-tower compound fertilizer production, comprising a base frame and a flipping frame disposed on the upper surface of the base frame, one end of the flipping frame being hinged to the base frame, two rotating seats being fixedly connected to the upper surface of the flipping frame, the same rotating cylinder being rotatably connected inside the two rotating seats, and multiple sets of circumferentially arranged flipping panels being fixedly connected to the inner wall of the rotating cylinder, each flipping panel having a wave-like structure, and the two ends of the rotating cylinder being conical;

[0007] Two sliding brackets are fixedly connected to the upper surface of the base frame. A spray box is slidably connected between the two sliding brackets through a sliding bearing. The middle of the spray box is located inside the rotating drum. A set of nozzles is fixedly connected to the bottom of the spray box. All of the nozzles are located inside the rotating drum. A cylinder is fixedly connected to the top of one of the sliding brackets. A connecting plate is fixedly connected to the output end of the cylinder. The connecting plate is fixedly connected to one end of the spray box. Downward-sloping baffles are fixedly connected to the top of both sides of the spray box. A set of fans is set below each of the two baffles. The two sets of fans are fixedly connected to the two sides of the spray box.

[0008] Furthermore, a set of self-braking wheels is fixedly connected to the bottom of the base frame.

[0009] The above solution, with its self-braking wheel, facilitates the movement and fixation of the device, improving its flexibility and ease of use.

[0010] Furthermore, one end of the base frame is hinged to two hydraulic rods, and the output ends of the two hydraulic rods are respectively hinged to one end of the tilting frame.

[0011] The above scheme allows for tilt control of the tilting frame through the extension and retraction of the hydraulic rod, thus facilitating the pouring of the processed compound fertilizer granules from the rotating drum.

[0012] Furthermore, one end of the spray box is fixedly connected to a connecting pipe, which is connected to the output end of the external pump body.

[0013] The above scheme and settings enable the delivery of external coating materials into the spray box.

[0014] Furthermore, a gear ring is fixedly connected to the middle end of the rotating drum, a motor is fixedly installed at the middle end of the tilting frame, a power shaft is fixedly connected to the output end of the motor, and a gear is fixedly connected to one end of the power shaft, with the gear meshing with the gear ring.

[0015] The above scheme uses a motor to drive the gear and gear ring to rotate, which in turn drives the drum to rotate, thus achieving continuous stirring and coating of compound fertilizer granules.

[0016] Furthermore, a feed chute is provided at one end of the rotating drum, and a sealing plate is hinged to the top of the feed chute.

[0017] With the above solution, compound fertilizer granules can be easily added to the rotating drum for coating by opening the sealing plate, and the design of the sealing plate can effectively prevent the coating material from leaking during the processing.

[0018] Furthermore, the tops of both sliding supports are designed with an arched structure.

[0019] The above solution and settings can prevent obstruction of the material flow path when dumping materials.

[0020] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0021] This coating device for high-tower compound fertilizer production features a wave-shaped flipping panel with a peak-to-trough structure design. During the rotation of the drum, the material is distributed in multiple directions, resulting in uniform material diffusion. Compared to traditional baffles, this increases the material contact area, improves the flipping volume, and significantly enhances particle dispersion uniformity. Combined with the conical openings at both ends of the drum, it effectively restricts axial material displacement, avoiding material overflow problems caused by end openings in traditional straight-cylinder structures. The reciprocating motion of the spray box driven by a cylinder, along with a multi-nozzle array, forms a dynamic coverage spraying area, eliminating blind spots caused by the spacing of fixed nozzle groups. The reciprocating fan can evenly blow the material, improving the material's curing efficiency. The hydraulically driven flipping frame can accelerate the material's drop speed after coating, thereby improving user convenience. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application;

[0023] Figure 2 This is a front view of the overall structure of this application;

[0024] Figure 3 This is a sectional view of the overall structure of this application from the front.

[0025] Figure 4 This is a structural diagram of the spray box in this application;

[0026] Figure 5 This is a structural diagram of the flip panel of this application.

[0027] In the picture:

[0028] 1. Base frame; 2. Tilting frame; 3. Rotating seat; 4. Rotary drum; 5. Flip panel; 6. Sliding bracket; 7. Spray box; 8. Nozzle; 9. Cylinder; 10. Connecting plate; 11. Baffle; 12. Fan; 13. Self-braking wheel; 14. Hydraulic rod; 15. Connecting pipe; 16. Gear ring; 17. Motor; 18. Drive shaft; 19. Gear; 20. Feed chute; 21. Sealing plate. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Please see Figure 1 , Figure 3 and Figure 5 This embodiment of a coating device for high-tower compound fertilizer production includes a base frame 1 and a tilting frame 2 mounted on the upper surface of the base frame 1. A set of self-braking wheels 13 are fixedly connected to the bottom of the base frame 1. The self-braking wheels 13 facilitate the movement and fixation of the device, improving the flexibility and ease of use of the equipment. One end of the tilting frame 2 is hinged to the base frame 1. Two rotating seats 3 are fixedly connected to the upper surface of the tilting frame 2. The two rotating seats 3 are rotatably connected to the same rotating cylinder 4. Multiple sets of circumferentially arranged flip panels 5 are fixedly connected to the inner wall of the rotating cylinder 4. Each flipping panel 5 has a wavy structure, and the two ends of the rotating drum 4 are conical. The wavy structure of the flipping panel 5 allows the material to separate from the crests to both sides during flipping, which can more effectively stir and turn the compound fertilizer granules. At the same time, the wavy shape of the flipping panel 5 increases the contact area with the material, increases the amount of material to be flipped, and makes it evenly distributed inside the rotating drum 4. This ensures that the coating material evenly covers the surface of the granules, improving the coating effect and product quality. The conical shape at both ends of the rotating drum 4 can prevent the material from falling out during the rotation of the drum.

[0031] Please see Figure 1 , Figure 2 and Figure 3 Two hydraulic rods 14 are hinged to one end of the base frame 1. The output ends of the two hydraulic rods 14 are respectively hinged to one end of the tilting frame 2. The tilting control of the tilting frame 2 can be realized by the extension and retraction of the hydraulic rods 14, so as to conveniently pour the processed compound fertilizer granules out of the rotating drum 4. A feeding trough 20 is provided at one end of the rotating drum 4. A sealing plate 21 is hinged to the top of the feeding trough 20. By opening the sealing plate 21, the compound fertilizer granules can be conveniently added into the rotating drum 4 for coating treatment. The design of the sealing plate 21 can effectively prevent the coating material from leaking during the processing.

[0032] Please see Figure 1 , Figure 3 and Figure 4Two sliding supports 6 are fixedly connected to the upper surface of the base frame 1. A spray box 7 is slidably connected between the two sliding supports 6 via a sliding bearing. The middle end of the spray box 7 is located inside the rotating drum 4. A set of nozzles 8 is fixedly connected to the bottom of the spray box 7. All of the nozzles 8 are located inside the rotating drum 4. A cylinder 9 is fixedly connected to the top of one of the sliding supports 6. A connecting plate 10 is fixedly connected to the output end of the cylinder 9. The connecting plate 10 is fixedly connected to one end of the spray box 7. The tops of both sliding supports 6 are designed with an arched structure. Through the above configuration, it is possible to pour materials... During material preparation, to avoid obstructing the material flow path, the top of both sides of the spray box 7 is fixedly connected to downwardly inclined baffles 11. Below each of the two baffles 11, a set of fans 12 is respectively installed. The two sets of fans 12 are fixedly connected to the two sides of the spray box 7. The airflow generated by the fans 12 can help the coating material dry and set faster. At the same time, the design of the baffles 11 can prevent the coating material from splashing everywhere and ensure a clean working environment. The cylinder 9 can drive the spray box 7 to reciprocate, thereby further improving the uniformity of spraying.

[0033] Please see Figure 1 , Figure 2 and Figure 3 A gear ring 16 is fixedly connected to the middle end of the rotating drum 4, and a motor 17 is fixedly installed at the middle end of the tilting frame 2. A power shaft 18 is fixedly connected to the output end of the motor 17, and a gear 19 is fixedly connected to one end of the power shaft 18. The gear 19 meshes with the gear ring 16. The rotating drum 4 can be rotated by the meshing rotation of the gear 19 and the gear ring 16 driven by the motor 17, thereby realizing continuous stirring and coating treatment of compound fertilizer granules. A connecting pipe 15 is fixedly connected to one end of the spray box 7. The connecting pipe 15 is connected to the output end of the external pump body. Through the above settings, the external coating material can be transported into the spray box 7.

[0034] In this embodiment, a coating device for high-tower compound fertilizer production is described. The wave-shaped flipping panel 5, through its crest-to-trough structure design, creates a multi-directional material distribution path during the rotation of the rotating drum 4, enabling uniform material diffusion. Compared to the traditional baffle 11, it increases the material contact area, improves the flipping volume, and significantly enhances the uniformity of particle dispersion. Combined with the tapered ends of the rotating drum 4, it effectively restricts the axial displacement of the material, avoiding the material overflow problem caused by the end openings of the traditional straight drum structure. The reciprocating motion of the spray box 7 driven by the cylinder 9, together with the array of multiple nozzles 8, forms a dynamic coverage spraying area, eliminating the spraying blind spots caused by the spacing of the fixed nozzle group. The reciprocating fan 12 can evenly blow the material, improving the material curing efficiency. The flipping frame 2 driven by the hydraulic rod 14 can accelerate the material drop speed after coating, thereby improving user convenience.

[0035] The working principle of the above embodiment is as follows: Compound fertilizer granules are poured into the rotating drum 4 through the feed chute 20 at one end. At this time, the hydraulic rod 14 is in a retracted state, and the rotating drum 4 remains horizontal, providing a stable foundation for subsequent mixing and coating operations. The motor 17 drives the gear 19 to mesh with the gear ring 16 of the rotating drum 4, causing the rotating drum 4 to rotate. The wave-shaped flip panel 5 on the inner wall causes the material to flip, scattering the granules from the crests to both sides, forming a multi-directional material distribution path. The conical rotating drum 4 restricts the axial displacement of the material at both ends, preventing the granules from overflowing from the ends. The pump body continuously delivers coating agent to the spray box 7 through the connecting pipe 15. The cylinder 9 pushes the spray box 7 to reciprocate along the sliding bracket 6. The multiple sets of nozzles 8 at the bottom of the spray box 7 form a dynamic coverage area, eliminating the axial blind zone of the fixed nozzle. The two side fans 12, which start simultaneously, generate directional airflow to accelerate the atomization and diffusion of the coating agent and the drying of the particle surface. After coating is completed, the hydraulic rod 14 extends and pushes the tilting frame 2 to tilt around the hinge point of the base frame 1. The particles in the rotating drum 4 slide out along the conical port under the action of gravity. The arched sliding bracket 6 avoids obstructing the discharge path.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of this application 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 embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coating device for high-tower compound fertilizer production, comprising a base frame (1) and a tilting frame (2) disposed on the upper surface of the base frame (1), characterized in that: One end of the flipping frame (2) is hinged to the base frame (1). Two rotating seats (3) are fixedly connected to the upper surface of the flipping frame (2). The same rotating cylinder (4) is rotatably connected inside the two rotating seats (3). Multiple sets of circumferentially arranged flip panels (5) are fixedly connected to the inner wall of the rotating cylinder (4). Each flip panel (5) has a wave-like structure. The two ends of the rotating cylinder (4) are conical. Two sliding brackets (6) are fixedly connected to the upper surface of the base frame (1). A spray box (7) is slidably connected between the two sliding brackets (6) through a sliding bearing. The middle end of the spray box (7) is located inside the rotating drum (4). A set of nozzles (8) is fixedly connected to the bottom of the spray box (7). All the nozzles (8) are located inside the rotating drum (4). A cylinder (9) is fixedly connected to the top of one of the sliding brackets (6). A connecting plate (10) is fixedly connected to the output end of the cylinder (9). The connecting plate (10) is fixedly connected to one end of the spray box (7). A downwardly inclined baffle (11) is fixedly connected to the top of both sides of the spray box (7). A set of fans (12) is set below each of the two baffles (11). The two sets of fans (12) are fixedly connected to the two sides of the spray box (7).

2. The coating device for high-tower compound fertilizer production according to claim 1, characterized in that: A set of self-braking wheels (13) are fixedly connected to the bottom of the base frame (1).

3. The coating device for high-tower compound fertilizer production according to claim 1, characterized in that: Two hydraulic rods (14) are hinged to one end of the base frame (1), and the output ends of the two hydraulic rods (14) are respectively hinged to one end of the tilting frame (2).

4. The coating device for high-tower compound fertilizer production according to claim 1, characterized in that: One end of the spray box (7) is fixedly connected to a connecting pipe (15), which is connected to the output end of the pump body in the outside.

5. The coating device for high-tower compound fertilizer production according to claim 1, characterized in that: A gear ring (16) is fixedly connected to the middle end of the rotating drum (4), and a motor (17) is fixedly installed at the middle end of the tilting frame (2). A power shaft (18) is fixedly connected to the output end of the motor (17), and a gear (19) is fixedly connected to one end of the power shaft (18). The gear (19) meshes with the gear ring (16).

6. The coating device for high-tower compound fertilizer production according to claim 1, characterized in that: One end of the rotating drum (4) is provided with a feed trough (20), and a sealing plate (21) is hinged to the top of the feed trough (20).

7. The coating device for high-tower compound fertilizer production according to claim 1, characterized in that: The tops of both sliding supports (6) are designed with an arched structure.

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