Feed cooling device

Abstract

The utility model relates to a feed cooling device, which effectively solves the problems of low cooling efficiency and powder dissipation after feed puffing. According to the technical scheme, the device comprises an inner cylinder and an outer cylinder, the inner cylinder is coaxially installed in the outer cylinder through a bearing, the two ends of the inner cylinder extend out of the outer cylinder, a feeding port is formed in the left end of the inner cylinder, an end cover is installed at the right end of the inner cylinder through a bearing, a discharging pipe is arranged on the end cover, and a discharging auger is installed in the discharging pipe; the discharging end of the discharging pipe is bent upwards, materials enter the inner barrel from the feeding port, are conveyed rightwards in the inner barrel and are discharged from the discharging pipe, an interlayer air cavity is formed between the inner barrel and the outer barrel, an air inlet pipe is installed on the outer barrel, a fan is installed on the air inlet pipe, a plurality of air holes are formed in the side wall, located in the outer barrel, of the inner barrel, and an exhaust pipe is installed on the side wall, located outside the outer barrel, of the inner barrel. A dust collection bag is mounted at the tail end of the exhaust pipe; according to the utility model, 360-degree cooling can be carried out, so that the cooling efficiency is effectively improved; and dust in the airflow is filtered and collected by the dust collecting bag, so that the dust is prevented from escaping.

Description

Technical Field

[0001] The utility model relates to the field of feed processing, in particular to a feed cooling device. Background Art

[0002] After the feed is puffed by the extruder, it has a high temperature and needs to be cooled as soon as possible to avoid accumulation and adhesion. The utility model patent with application number: CN202022095202.2 discloses a feed processing and puffing device, which is connected to a porous rotating cylinder after the extruder. The material enters the rotating cylinder directly after being discharged from the extruder, and an exhaust fan is arranged outside the rotating cylinder to blow air to the side wall of the rotating cylinder. The wind enters the cylinder through the heat dissipation holes on the side wall of the rotating cylinder to cool the feed. The cold air in this patent is blown into the rotating cylinder through the heat dissipation holes and then blown out from the heat dissipation holes on the other side. The blown wind will carry feed powder, causing the powder to escape with the wind. In addition, this patent can only take in air from one side of the rotating cylinder, and the heat dissipation efficiency is low. Summary of the invention

[0003] The utility model provides a feed cooling device, aiming to solve the problems of low cooling efficiency and powder dispersion after feed expansion.

[0004] The technical solution includes an inner cylinder and an outer cylinder. The inner cylinder is coaxially installed in the outer cylinder via a bearing. Both ends of the inner cylinder extend out of the outer cylinder. A feed port is provided at the left end of the inner cylinder, and an end cover is installed at the right end of the inner cylinder via a bearing. A discharge pipe is provided on the end cover, and a discharge auger is installed in the discharge pipe. The discharge end of the discharge pipe is bent upward, and the material enters the inner cylinder from the feed port and is transported to the right in the inner cylinder and discharged from the discharge pipe. A sandwich air cavity is formed between the inner cylinder and the outer cylinder, an air inlet pipe is installed on the outer cylinder, and a fan is installed on the air inlet pipe. A plurality of air holes are opened on the side wall of the inner cylinder located inside the outer cylinder, and an exhaust pipe is installed on the side wall of the inner cylinder located outside the outer cylinder, and a dust collecting bag is installed at the end of the exhaust pipe.

[0005] Sealing rings are arranged at the joints between the two ends of the outer cylinder and the inner cylinder, as well as at the joints between the end cover and the inner cylinder.

[0006] The outer cylinder and the end cover are both fixedly installed via a fixing frame.

[0007] A first gear is installed on the outer wall of the inner cylinder extending out of the outer cylinder, the first gear is meshed with a second gear, and the second gear is connected to a driving motor.

[0008] The inner cylinder and the outer cylinder are both in an inclined state with the left side higher and the right side lower.

[0009] The inner wall of the inner cylinder is provided with spiral blades, which can transport the materials in the inner cylinder to the right when the inner cylinder rotates.

[0010] The utility model can perform 360-degree cooling, effectively improving the cooling efficiency; and the dust in the airflow is filtered and collected by the dust collecting bag, thus avoiding the dust from escaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front sectional view of the utility model.

[0012] Figure 2 for Figure 1 Middle AA section view.

[0013] Figure 3 for Figure 1 Enlarged view of position B in the middle. DETAILED DESCRIPTION

[0014] In conjunction with the accompanying drawings, the utility model includes an inner cylinder 1 and an outer cylinder 2. The inner cylinder 1 is coaxially installed in the outer cylinder 2 via a bearing. Both ends of the inner cylinder 1 extend out of the outer cylinder 2. A feed port 3 is provided at the left end of the inner cylinder 1. An end cover 4 is installed at the right end of the inner cylinder 1 via a bearing. A discharge pipe 5 is provided on the end cover 4. A discharge auger 6 is installed in the discharge pipe 5. The material enters the inner cylinder 1 from the feed port 3 and is transported to the right in the inner cylinder 1 and discharged from the discharge pipe 5. A sandwich air cavity 7 is formed between the inner cylinder 1 and the outer cylinder 2. An air inlet pipe 8 is installed on the outer cylinder 2. A fan 9 is installed on the air inlet pipe 8. The inner cylinder 1 is located between the outer cylinder 2 and the outer cylinder 2. A plurality of air holes 10 are provided on the inner side wall, an exhaust pipe 11 is installed on the side wall of the inner cylinder 1 outside the outer cylinder 2, and a dust collecting bag 12 is installed at the end of the exhaust pipe 11; the fan 9 blows air into the interlayer air cavity 7 through the air inlet pipe 8, and the wind enters the inner cylinder 1 through the air holes 10 to cool the material, and then is discharged from the exhaust pipe 11, and the dust collecting bag 12 filters and collects the dust; the discharge end of the discharge pipe 5 is bent upward, and when the discharge auger 6 discharges material outward, a section of material will always remain at the bent end of the discharge pipe 5 to close the discharge pipe 5, so that the airflow will not be blown out from the discharge pipe 5.

[0015] Sealing rings 13 are installed at the joints between the two ends of the outer tube 2 and the inner tube 1 and at the joints between the end cover 4 and the inner tube 1.

[0016] The outer cylinder 2 and the end cover 4 are both fixedly installed via a fixing frame 14, and the outer cylinder 2 and the end cover 4 always remain stationary.

[0017] A first gear 15 is installed on the outer wall of the inner cylinder 1 extending out of the outer cylinder 2. The first gear 15 is meshed with a second gear 16. The second gear 16 is connected to a driving motor. The driving motor drives the inner cylinder 1 to rotate through a gear set.

[0018] The inner cylinder 1 and the outer cylinder 2 are both in an inclined state with the left side higher and the right side lower, and the material can automatically slide to the right end.

[0019] The inner wall of the inner cylinder 1 is provided with spiral blades 17 , which can transport the materials in the inner cylinder 1 to the right when the inner cylinder 1 rotates, and the air holes 10 avoid the spiral blades 17 .

[0020] When the utility model is in use, feed particles enter the inner cylinder 1 from the feed port 3, the inner cylinder 1 rotates, and under the action of the spiral blade 17 or gravity or the combined action of the two, the material is continuously transported to the right and finally enters the end cover 4, and then is discharged from the discharge pipe 5 by the discharge auger 6.

[0021] While the material passes through the inner cylinder 1, the fan 9 is started, and the cold air enters the interlayer air cavity 7 from the air inlet pipe 8, and then blows into the inner cylinder 1 through the air hole 10 to cool the feed particles in the inner cylinder 1, and finally is discharged from the exhaust pipe 11, and the dust collecting bag 12 will filter and collect the dust in the exhaust air.

[0022] The discharge end of the discharge pipe 5 is bent upward. When the discharge auger 6 discharges material, a section of material will always remain at the port of the discharge pipe 5 to close the port of the discharge pipe 5, thereby preventing the airflow in the inner tube 1 from being blown out from the discharge pipe 5. The feed port 3 is connected to the upstream material pipe for continuous feeding, and the airflow cannot be blown out from the feed port 3. Therefore, the cold airflow can only be blown out from the exhaust pipe 11.

[0023] The utility model uses the air distribution effect of the interlayer air cavity 7 to allow cold air to be blown into the inner tube 1 at 360 degrees, which can effectively improve the cooling efficiency; the material is stored by bending the end of the discharge pipe 5 to prevent the air flow from being blown out of the discharge pipe 5, so that the air flow can only be blown out from the exhaust pipe 11, and the dust in the air flow is filtered and collected by the dust collecting bag 12, thereby preventing the dust from escaping.

Claims

1. A feed cooling device, characterized in that: The invention comprises an inner cylinder (1) and an outer cylinder (2), wherein the inner cylinder (1) is coaxially mounted in the outer cylinder (2) via a bearing, and both ends of the inner cylinder (1) extend out of the outer cylinder (2). The left end of the inner cylinder (1) is provided with a feed port (3), and the right end of the inner cylinder (1) is provided with an end cover (4) via a bearing. The end cover (4) is provided with a discharge pipe (5), and a discharge auger (6) is mounted in the discharge pipe (5). The discharge end of the discharge pipe (5) is bent upward, and the material enters the inner cylinder (1) from the feed port (3). ) and transported to the right in the inner cylinder (1) and discharged from the discharge pipe (5), a sandwich air cavity (7) is formed between the inner cylinder (1) and the outer cylinder (2), an air inlet pipe (8) is installed on the outer cylinder (2), a fan (9) is installed on the air inlet pipe (8), a plurality of air holes (10) are opened on the side wall of the inner cylinder (1) located inside the outer cylinder (2), an exhaust pipe (11) is installed on the side wall of the inner cylinder (1) located outside the outer cylinder (2), and a dust collecting bag (12) is installed at the end of the exhaust pipe (11).

2. A feed cooling device according to claim 1, characterized in that: Sealing rings (13) are installed at the points where both ends of the outer cylinder (2) fit with the inner cylinder (1) and at the points where the end cover (4) fits with the inner cylinder (1).

3. A feed cooling device according to claim 1, characterized in that: The outer cylinder (2) and the end cover (4) are both fixedly mounted via a fixing frame (14).

4. A feed cooling device according to claim 1, characterized in that: A first gear (15) is mounted on the outer wall of the inner cylinder (1) extending outside the outer cylinder (2); the first gear (15) is meshed with a second gear (16); and the second gear (16) is connected to a driving motor.

5. A feed cooling device according to claim 1, characterized in that: The inner cylinder (1) and the outer cylinder (2) are both in an inclined state with the left side higher and the right side lower.

6. A feed cooling device according to claim 1, characterized in that: The inner wall of the inner cylinder (1) is provided with spiral blades (17) which can transport the material in the inner cylinder (1) to the right when the inner cylinder (1) rotates.

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