Circulating air cooling system for fertilizer coating process

Abstract

The utility model relates to the technical field of fertilizer coating air cooling, in particular to a circulating air cooling system for a fertilizer coating process, which comprises a cooling mechanism, a conveying and recycling mechanism is arranged on one side of the cooling mechanism, the cooling mechanism comprises a cooling frame, a supporting plate is mounted on the surface of the cooling frame, a cooling cylinder is arranged on the inner side of the supporting plate, and the cooling cylinder is connected with the conveying and recycling mechanism. The device has the beneficial effects that a conveying auger rotates to drive a fertilizer in a feeding hopper to move, at the moment, a coating agent penetrates through a hole barrel under the action of centrifugal force, then the fertilizer enters the surface of a guide hopper through a discharging hopper, the fertilizer enters the cooling barrel, and the fertilizer is cooled through the cooling barrel; the cooling cylinder rotates to drive the fertilizer to move, meanwhile, the air blower sucks air, the air is cooled by the cooling box, enters the air outlet cover and is exhausted through the air outlet cover, at the moment, the air flow direction and the material flow direction form reverse flow, and the heat exchange effect is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer coating air-cooling technology, specifically a circulating air-cooling system for fertilizer coating process. Background Technology

[0002] Coated fertilizers are fertilizers made by coating fertilizer granules with a coating agent to solidify into a film. The purpose of coating is to allow the nutrients inside the coated fertilizer to be released slowly after it is applied to the soil, thereby prolonging its effectiveness. A coating machine is used to coat the surface of fertilizer granules with a coating agent to slow down the release rate of the fertilizer, thus improving fertilizer utilization.

[0003] The existing patent, CN201921154422.9, entitled "A Cold Coating Production Line for Biological Organic Fertilizer," includes a frame, a coating device, a conveying device, and a cooling device. The coating device comprises a hollow cylindrical coating roller with a first inlet, a first outlet, and a coating agent feeding device. The cooling device includes a hollow cylindrical cooling roller with a second inlet and a second outlet. The conveying device transfers material from the coating roller to the cooling roller. A heating device is installed on the coating roller, and a water-cooling device and an air-cooling device are installed inside the cooling roller.

[0004] Although the above scheme uses both air cooling and water cooling to cool the fertilizer, the cooling speed is fast, the fertilizer coating is well formed and does not stick together, and the cooling water can be reused in the coating process, saving energy, the above scheme is not convenient to recover the coating agent that is not attached to the fertilizer, thus increasing the waste of the coating agent. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, this utility model proposes a circulating air-cooling system for fertilizer coating process to solve the problems mentioned in the background art.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A circulating air-cooling system for fertilizer coating process includes a cooling mechanism, a conveying and recycling mechanism on one side of the cooling mechanism, a cooling frame, a tray mounted on the surface of the cooling frame, a cooling cylinder on the inner side of the tray, a hopper adapted to the cooling cylinder on one side of the tray, a guide hopper adapted to the cooling cylinder mounted on the surface of the cooling frame, a cooling box mounted on the surface of the cooling frame, and a blower installed inside the guide hopper.

[0008] The conveying and recycling mechanism includes a support frame installed on the rear side of the cooling rack. A conveying cylinder is installed on the surface of the support frame. The conveying cylinder has a perforated cylinder inside. A conveying auger is rotatably connected inside the conveying cylinder. A feeding hopper is installed on the surface of the support frame. A discharge hopper is installed on the upper surface of the conveying cylinder.

[0009] Preferably, the air inlet of the cooling box is connected to a blower, and the air outlet of the cooling box is connected to a guide hopper.

[0010] Preferably, the surface of the cooling cylinder is fixedly connected with protruding teeth, the surface of the cooling rack is equipped with a first servo motor, the surface of the output shaft of the first servo motor is fixedly connected with a transmission gear, and the first servo motor and the transmission gear are rotatably connected through a transmission chain.

[0011] Preferably, two auxiliary wheels are rotatably connected to both sides of the inner wall of the tray, and two sliding rings are fixedly connected to the surface of the cooling cylinder, with the sliding rings in contact with the auxiliary wheels.

[0012] Preferably, a second servo motor is installed on the top of the conveying cylinder, and the output shaft of the second servo motor is fixedly connected to the top of the conveying auger.

[0013] Preferably, the conveying auger is located inside the orifice cylinder and does not contact the inner wall of the orifice cylinder, and the feeding hopper is adapted to the conveying cylinder.

[0014] Preferably, a discharge valve is installed at the bottom of the conveying cylinder, and a perforated plate is fixedly connected inside the conveying cylinder.

[0015] Compared with existing technologies, the beneficial effects of the circulating air-cooling system of the fertilizer coating process of this utility model are:

[0016] First, the fertilizer inside the feeding hopper is moved by the rotation of the conveying auger. At this time, the coating agent passes through the perforated cylinder under the action of centrifugal force, and then the fertilizer enters the surface of the guide hopper through the discharge hopper.

[0017] Secondly, the fertilizer enters the interior of the cooling cylinder. The rotation of the cooling cylinder will move the fertilizer. At the same time, the blower draws in the gas, which is cooled by the cooling box and enters the interior of the exhaust hood, and then is discharged through the exhaust hood. At this time, the gas flow direction and the material flow direction form a counter-current, which enhances the heat exchange effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a first-view schematic diagram of the cooling mechanism in the structure of this utility model;

[0020] Figure 3This is a second-view schematic diagram of the cooling mechanism in the structure of this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the conveying and recycling mechanism in the structure of this utility model.

[0022] The components include: 1. Cooling mechanism; 101. Cooling rack; 102. Pallet; 103. Cooling cylinder; 104. Feed hopper; 105. Guide hopper; 106. Cooling box; 107. Blower; 108. Exhaust hood; 109. Convex tooth; 110. First servo motor; 111. Transmission gear; 112. Transmission chain; 113. Auxiliary wheel; 114. Sliding ring; 2. Conveying and recycling mechanism; 201. Support frame; 202. Conveying cylinder; 203. Orifice cylinder; 204. Conveying auger; 205. Second servo motor; 206. Feed hopper; 207. Discharge hopper; 208. Discharge valve; 209. Orifice plate. Detailed Implementation

[0023] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0024] Please refer to the circulating air-cooling system of a fertilizer coating process according to this specific embodiment. Figure 1-4 The system includes: a cooling mechanism 1, a conveying and recycling mechanism 2 on one side of the cooling mechanism 1, a cooling rack 101, a support plate 102 mounted on the surface of the cooling rack 101, a cooling cylinder 103 on the inner side of the support plate 102, a feeding hopper 104 adapted to the cooling cylinder 103 on one side of the support plate 102, a guide hopper 105 adapted to the cooling cylinder 103 mounted on the surface of the cooling rack 101, and a guide hopper 105 adapted to the cooling cylinder 103 on the surface of the support plate 102. A cooling box 106 is installed on the surface of the cooling rack 101, a blower 107 is installed inside the guide hopper 105, and the conveying and recycling mechanism 2 includes a support frame 201 installed on the rear side of the cooling rack 101. A conveying cylinder 202 is installed on the surface of the support frame 201. A perforated cylinder 203 is provided inside the conveying cylinder 202. A conveying auger 204 is rotatably connected inside the conveying cylinder 202. A feeding hopper 206 is installed on the surface of the support frame 201, and a discharge hopper 207 is installed on the upper surface of the conveying cylinder 202.

[0025] Through the above technical solution, the fertilizer inside the feeding hopper 206 is moved by the rotation of the conveying auger 204. At this time, the coating agent passes through the perforated cylinder 203 under the action of centrifugal force. Then the fertilizer will enter the surface of the guide hopper 105 through the discharge hopper 207. The fertilizer will enter the interior of the cooling cylinder 103. The rotation of the cooling cylinder 103 will move the fertilizer. At the same time, the blower 107 will draw in the gas. The gas is cooled by the cooling box 106 and enters the interior of the exhaust hood 108. Then it is discharged through the exhaust hood 108. At this time, the gas flow direction forms a counterflow with the material flow direction, which enhances the heat exchange effect.

[0026] The air inlet of the cooling box 106 is connected to the blower 107, and the air outlet of the cooling box 106 is connected to the guide bucket 105. By connecting the two ends of the cooling box 106 to the blower 107 and the guide bucket 105 respectively, the air can be cooled more quickly, thereby increasing the cooling rate of the fertilizer.

[0027] The surface of the cooling cylinder 103 is fixedly connected with a tooth 109, and the surface of the cooling rack 101 is equipped with a first servo motor 110. The surface of the output shaft of the first servo motor 110 is fixedly connected with a transmission gear 111, and the first servo motor 110 and the transmission gear 111 are rotatably connected through a transmission chain 112. When the first servo motor 110 is started, its output shaft rotates, which drives the transmission gear 111 to rotate. At this time, under the action of the transmission chain 112 and the tooth 109, the cooling cylinder 103 is driven to rotate.

[0028] Two auxiliary wheels 113 are rotatably connected to both sides of the inner wall of the tray 102. Two sliding rings 114 are fixedly connected to the surface of the cooling cylinder 103, and the sliding rings 114 are in contact with the auxiliary wheels 113. When the cooling cylinder 103 rotates, it will drive the sliding rings 114 to move on the surface of the auxiliary wheels 113, thereby reducing the friction generated by the self-rotation of the cooling cylinder 103.

[0029] A second servo motor 205 is installed on the top of the conveying cylinder 202, and the output shaft of the second servo motor 205 is fixedly connected to the top of the conveying auger 204. With the setting of the second servo motor 205, when the second servo motor 205 is started, its output shaft drives the conveying auger 204 to rotate, thereby driving the fertilizer to move.

[0030] The conveying auger 204 is located inside the orifice 203 and does not contact the inner wall of the orifice 203. The feeding hopper 206 is adapted to the conveying cylinder 202. The conveying auger 204 is rotatably connected inside the conveying auger 204 to improve the separation effect of the coating agent. At the same time, the feeding hopper 206 is connected to the conveying cylinder 202 to facilitate the feeding of fertilizer.

[0031] A discharge valve 208 is installed at the bottom of the conveying cylinder 202, and an orifice plate 209 is fixedly connected inside the conveying cylinder 202. The discharge valve 208 facilitates the discharge of the coating agent inside the conveying cylinder 202, and the orifice plate 209 facilitates the discharge of the coating agent separated from the conveying auger 204.

[0032] Its working principle is as follows:

[0033] Using the above technical solution, fertilizer is poured into the inside of the feeding hopper 206. When the second servo motor 205 starts, its output shaft drives the conveying auger 204 to rotate. The rotation of the conveying auger 204 causes the fertilizer inside the feeding hopper 206 to move. At this time, the coating agent passes through the perforated cylinder 203 under the action of centrifugal force. The coating agent inside the conveying cylinder 202 is conveniently discharged through the discharge valve 208, and the coating agent separated from the inside of the conveying auger 204 is conveniently discharged through the perforated plate 209. Subsequently, the fertilizer enters the guide hopper through the discharge hopper 207. On the surface of 105, fertilizer enters the interior of cooling cylinder 103. The output shaft of the first servo motor 110 is started to rotate, which drives the transmission gear 111 to rotate. At this time, under the action of the transmission chain 112 and the tooth 109, the cooling cylinder 103 is driven to rotate. The rotation of the cooling cylinder 103 will drive the fertilizer to move. At the same time, the blower 107 draws in gas, which is cooled through the cooling box 106 and enters the interior of the exhaust hood 108, and is discharged through the exhaust hood 108. At this time, the gas flow direction forms a counterflow with the material flow direction, which enhances the heat exchange effect.

[0034] 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 circulating air-cooling system for fertilizer coating technology, characterized in that, include: A cooling mechanism (1) is provided on one side of the cooling mechanism (1) and a conveying and recycling mechanism (2). The cooling mechanism (1) includes a cooling rack (101). A tray (102) is installed on the surface of the cooling rack (101). A cooling cylinder (103) is provided on the inner side of the tray (102). A feeding hopper (104) adapted to the cooling cylinder (103) is provided on one side of the tray (102). A guide hopper (105) adapted to the cooling cylinder (103) is installed on the surface of the cooling rack (101). A guide hopper (105) adapted to the cooling cylinder (103) is provided on the surface of the tray (102). A cooling box (106) is installed on the surface of the cooling rack (101). A blower (107) is installed inside the guide hopper (105). The conveying and recycling mechanism (2) includes a support frame (201) installed on the rear side of the cooling rack (101). A conveying cylinder (202) is installed on the surface of the support frame (201). A perforated cylinder (203) is provided inside the conveying cylinder (202). A conveying auger (204) is rotatably connected inside the conveying cylinder (202). A feeding hopper (206) is installed on the surface of the support frame (201). A discharge hopper (207) is installed on the upper surface of the conveying cylinder (202).

2. The circulating air-cooling system for a fertilizer coating process according to claim 1, characterized in that: The air inlet of the cooling box (106) is connected to the blower (107), and the air outlet of the cooling box (106) is connected to the guide bucket (105).

3. The circulating air-cooling system for a fertilizer coating process according to claim 1, characterized in that: The surface of the cooling cylinder (103) is fixedly connected with a tooth (109), the surface of the cooling rack (101) is mounted with a first servo motor (110), the surface of the output shaft of the first servo motor (110) is fixedly connected with a transmission gear (111), and the first servo motor (110) and the transmission gear (111) are rotatably connected through a transmission chain (112).

4. The circulating air-cooling system for a fertilizer coating process according to claim 1, characterized in that: Two auxiliary wheels (113) are rotatably connected to both sides of the inner wall of the tray (102), and two sliding rings (114) are fixedly connected to the surface of the cooling cylinder (103), and the sliding rings (114) are in contact with the auxiliary wheels (113).

5. The circulating air-cooling system for a fertilizer coating process according to claim 1, characterized in that: A second servo motor (205) is installed on the top of the conveying cylinder (202), and the output shaft of the second servo motor (205) is fixedly connected to the top of the conveying auger (204).

6. The circulating air-cooling system for a fertilizer coating process according to claim 1, characterized in that: The conveying auger (204) is located inside the orifice (203) and does not contact the inner wall of the orifice (203). The feeding hopper (206) is adapted to the conveying cylinder (202).

7. The circulating air-cooling system for a fertilizer coating process according to claim 1, characterized in that: A discharge valve (208) is installed at the bottom of the conveying cylinder (202), and a perforated plate (209) is fixedly connected inside the conveying cylinder (202).

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