Automatic film coating device for compound fertilizer

Abstract

The utility model provides an automatic compound fertilizer coating device which comprises a base, supporting frames arranged on the base, a rotating roller arranged between the tops of the two supporting frames, first rotating shafts arranged on the two sides of the rotating roller, and a rotating screen drum arranged in the rotating roller. Second rotating shafts which are sleeved with the first rotating shafts and extend out of the first rotating shafts are arranged on the two sides of the rotating screen drum, liquid inlet pipelines are arranged in the second rotating shafts, first bearing seats are arranged between the first rotating shafts and the supporting frame, and second bearing seats are arranged between the second rotating shafts and the supporting frame. In this way, the second bearing seat can replace an originally-designed second bearing to conduct rotary supporting, due to the fact that the second bearing seat is integrally installed outside the rotary roller, installation and maintenance are better compared with the original design, the second bearing seat can be bought into a whole set of products, and the installation and positioning process of the bearings is omitted.

Description

Technical Field

[0001] This utility model relates to the field of compound fertilizer production technology, and in particular to an automated coating device for compound fertilizer. Background Technology

[0002] Compound fertilizers have advantages such as comprehensive and high nutrient content, ease of application, few by-products with no adverse effects, diverse formulations, and strong targeting, leading to their widespread use in my country. The production process of compound fertilizers can be broadly divided into eight steps: raw material batching, raw material mixing, raw material granulation, granule drying, granule cooling, granule grading, finished product coating, and finished product packaging. Before packaging, compound fertilizers must undergo a coating process to prevent problems such as caking and agglomeration.

[0003] Utility model patent CN213866015U discloses a compound fertilizer coating device, which sets a second bearing inside the rotating shaft for the rotation of the rotating screen cylinder. However, the second bearing is installed inside the rotating drum, which is difficult to install and disassemble for later maintenance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an automated coating device for compound fertilizer, which solves the problems of supporting the rotation of the rotary screen cylinder and the difficulty in installing the original second bearing.

[0005] To solve the above-mentioned technical problems, this utility model provides an automated coating device for compound fertilizer, including a base, a support frame on the base, a rotating drum between the tops of the two support frames, a first rotating shaft on both sides of the rotating drum, a rotating screen cylinder inside the rotating drum, a second rotating shaft on both sides of the rotating screen cylinder that is fitted inside the first rotating shaft and extends out of the first rotating shaft, a liquid inlet pipe inside the second rotating shaft, a first bearing seat between the first rotating shaft and the support frame, and a second bearing seat between the second rotating shaft and the support frame.

[0006] In a preferred embodiment, a rotary joint is provided on one side of the liquid inlet pipe, and the other end of the rotary joint is connected to the outlet of the liquid pump through a liquid delivery pipe. The inlet of the liquid pump is connected to the outlet of the liquid storage tank through a liquid delivery pipe.

[0007] In a preferred embodiment, both the rotating drum and the rotating screen cylinder are hollow cylindrical structures. A ring gear is fixed at the axial center of the outer surface of the rotating drum in the circumferential direction. A drive motor is also provided on the base. A reducer is connected to the rotating shaft of the drive motor. A spur gear is provided on the output shaft of the reducer. The spur gear meshes with the ring gear.

[0008] In a preferred embodiment, a drive wheel is provided on the rotating shaft of the drive motor, and a driven wheel is provided at the outer end of the second rotating shaft. The driven wheel is connected to the drive wheel via a belt.

[0009] In a preferred embodiment, the rotating drum has a feed pipe at one end and a discharge pipe at the other end, and both the feed pipe and the discharge pipe are equipped with valves; the feed pipe and the discharge pipe are positioned at an angle of 180 degrees.

[0010] In a preferred embodiment, one side of the base is hinged to a fixed platform, and the other end is hinged to the top of the telescopic device; the telescopic device is located at the edge of the base.

[0011] The beneficial effects of this utility model are: the second bearing housing can replace the original design of the second bearing for rotational support. Since the second bearing housing is installed on the outside of the rotating drum, it is easier to install and maintain than the original design. Moreover, the second bearing housing can be purchased as a complete set, saving the bearing installation and positioning process. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0013] Figure 1 This is a partial sectional view of an embodiment of the present invention.

[0014] Reference numerals: Base 11; Support frame 12; Rotating drum 13; Rotating screen cylinder 14; First bearing seat 15; Second bearing seat 16; Rotary joint 17; Liquid delivery pipe 18; Liquid pump 19; Liquid storage tank 21; Ring gear 22; Drive motor 23; Reducer 24; Spur gear 25; First rotating shaft 26; Second rotating shaft 27; Liquid inlet pipe 271; Driving wheel 28; Driven wheel 29; Belt 31; Feed pipe 32; Discharge pipe 33; Fixed platform 34; Telescopic device 35. Detailed Implementation

[0015] Please see Figure 1 As shown, this application provides a technical solution: an automated coating device for compound fertilizer, including a base 11, a support frame 12 on the base 11, a rotating roller 13 between the tops of the two support frames 12, a first rotating shaft 26 on both sides of the rotating roller 13, a rotating screen 14 inside the rotating roller 13, a second rotating shaft 27 on both sides of the rotating screen 14 that is fitted inside the first rotating shaft 26 and extends out of the first rotating shaft 26, an inlet pipe 271 inside the second rotating shaft 27, a first bearing seat 15 between the first rotating shaft 26 and the support frame 12, and a second bearing seat 16 between the second rotating shaft 27 and the support frame 12.

[0016] In this way, the second bearing housing 16 can replace the original design of the second bearing for rotational support. Since the second bearing housing 16 is installed on the outside of the rotating drum 13, it is easier to install and maintain than the original design. Moreover, the second bearing housing 16 can be purchased as a complete set, which saves the bearing installation and positioning process.

[0017] In a preferred embodiment, a rotary joint 17 is provided on one side of the liquid inlet pipe 271, and the other end of the rotary joint 17 is connected to the outlet of the liquid pump 19 through a liquid delivery pipe 18. The inlet of the liquid pump 19 is connected to the outlet of the liquid storage tank 21 through the liquid delivery pipe 18.

[0018] In this way, the liquid pump 19 can draw liquid from the storage tank 21, enter the inlet pipe 271 through the rotary joint 17, and finally reach the rotary screen cylinder 14.

[0019] In a preferred embodiment, both the rotating drum 13 and the rotating screen cylinder 14 are hollow cylindrical structures. A ring gear 22 is fixed at the axial center of the outer surface of the rotating drum 13 in the circumferential direction. A drive motor 23 is also provided on the base 11. A reducer 24 is connected to the rotating shaft of the drive motor 23. A spur gear 25 is provided on the output shaft of the reducer 24. The spur gear 25 meshes with the ring gear 22.

[0020] The ring gear 22 is positioned in the middle to facilitate the overall rotational force distribution. In this way, the drive motor 23 drives the spur gear 25 to rotate through the reducer 24, and drives the rotating drum 13 to rotate through the ring gear 22.

[0021] In a preferred embodiment, a drive wheel 28 is provided on the rotating shaft of the drive motor 23, and a driven wheel 29 is provided at the outer end of the second rotating shaft 27. The driven wheel 29 is connected to the drive wheel 28 via a belt 31.

[0022] In this way, the drive motor 23 drives the rotating screen cylinder 14 to rotate through the drive wheel 28 and the driven wheel 29.

[0023] In a preferred embodiment, the rotating drum 13 is provided with a feed pipe 32 at one end and a discharge pipe 33 at the other end, and both the feed pipe 32 and the discharge pipe 33 are provided with valves; the feed pipe 32 and the discharge pipe 33 are positioned at an angle of 180 degrees.

[0024] The purpose of setting a 180-degree angle is to ensure that the feeding is not affected when the discharge pipe is at 33.

[0025] In a preferred embodiment, one side of the bottom of the base 11 is hinged to the fixed platform 34, and the other end is hinged to the top of the telescopic device 35; the telescopic device 35 is located at the edge of the base 11.

[0026] The telescopic device 35 can be an electric actuator or a hydraulic cylinder, etc. Setting the telescopic device 35 at the edge is to give the telescopic device 35 a larger lever arm, thereby reducing the power of the telescopic device 35.

[0027] The operating principle of the equipment is as follows: First, the compound fertilizer material to be coated is added into the rotating drum 13 through the feed pipe 32, and the drive motor 23 is turned on. The spur gear 25 rotates, which drives the ring gear 22 to rotate, thereby causing the rotating screen cylinder 14 to rotate, so that the compound fertilizer material to be coated is first evenly dispersed. Then, the coating liquid is drawn from the storage tank 21 by the liquid pump 19 and enters the liquid extraction pipe 18. Then, it is sent into the liquid inlet pipe 271 through the rotary joint 17, and finally enters the inner cavity of the rotating screen cylinder 14. Since the drive motor 23 is started, it can also drive the drive wheel 28 to rotate, and then through the belt 31 drives the driven wheel 29 to rotate, thereby causing the rotary screen cylinder 14 to rotate. As the rotary screen cylinder 14 rotates, the coating liquid entering the rotary screen cylinder 14 is thrown out of its screen holes due to centrifugal force and evenly sprinkled on the compound fertilizer material in the rotary screen cylinder, thus carrying out the coating process. When the coating process is completed and the material needs to be discharged, the telescopic device 35 can be activated. Its telescopic rod extends and the base 11 tilts, thereby forming a certain slope between the entire rotary drum 13 and the rotary screen cylinder 14. The material can slide quickly along the slope to the discharge pipe 33, which speeds up the discharge process.

[0028] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. An automatic coating device for compound fertilizer, characterized in that, Includes a base (11), a support frame (12) on the base (11), a rotating drum (13) between the tops of the two support frames (12), a first rotating shaft (26) on both sides of the rotating drum (13), a rotating screen cylinder (14) inside the rotating drum (13), a second rotating shaft (27) on both sides of the rotating screen cylinder (14) fitted inside the first rotating shaft (26) and extending out of the first rotating shaft (26), an inlet pipe (271) inside the second rotating shaft (27), a first bearing seat (15) between the first rotating shaft (26) and the support frame (12), and a second bearing seat (16) between the second rotating shaft (27) and the support frame (12).

2. The automatic coating device for compound fertilizer according to claim 1, characterized in that: A rotary joint (17) is provided on one side of the inlet pipe (271). The other end of the rotary joint (17) is connected to the outlet of the pump (19) through the delivery pipe (18). The inlet of the pump (19) is connected to the outlet of the storage tank (21) through the delivery pipe (18).

3. The automatic coating device for compound fertilizer according to claim 1, characterized in that: Both the rotating drum (13) and the rotating screen (14) are hollow cylindrical structures. A ring gear (22) is fixed at the axial center of the outer surface of the rotating drum (13) in the circumferential direction. A drive motor (23) is also provided on the base (11). A reducer (24) is connected to the rotating shaft of the drive motor (23). A spur gear (25) is provided on the output shaft of the reducer (24). The spur gear (25) meshes with the ring gear (22).

4. The automatic coating device for compound fertilizer according to claim 3, characterized in that: A drive wheel (28) is provided on the rotating shaft of the drive motor (23), and a driven wheel (29) is provided at the outer end of the second rotating shaft (27). The driven wheel (29) is connected to the drive wheel (28) via a belt (31).

5. The automatic coating device for compound fertilizer according to claim 3, characterized in that: The rotating drum (13) has a feed pipe (32) at one end and a discharge pipe (33) at the other end. Both the feed pipe (32) and the discharge pipe (33) are equipped with valves. The feed pipe (32) and the discharge pipe (33) are positioned at an angle of 180 degrees.

6. The automatic coating device for compound fertilizer according to claim 3, characterized in that: The base (11) is hinged on one side of the bottom and mounted on the fixed platform (34), and the other end is hinged to the top of the telescopic device (35); the telescopic device (35) is located at the edge of the base (11).

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