Polished filter residue air cooling device

Abstract

The utility model provides a polished filter residue air cooling device, and belongs to the technical field of rice processing equipment. Comprising an air cylinder, a feeding hopper, an air inlet pipe and an exhaust pipe, the air cylinder comprises a cylinder section and a conical cylinder section located below the cylinder section, the large-diameter end of the conical cylinder section faces upwards, a material pipe is connected to the circumferential face of the cylinder section, the feeding hopper is connected with the middle of the material pipe, the air inlet pipe is connected to the rear end of the material pipe, the upper end of the exhaust pipe is located above the air cylinder, and the lower end of the exhaust pipe extends into the conical cylinder section; the lower end of the air duct is connected with a discharging elbow. The device has the advantages of high rice processing efficiency and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of rice processing equipment and relates to an air cooling device for filter residue after polishing. Background Art

[0002] The polishing process in rice finishing is to improve the polished appearance and smoothness. The polishing machine generates centrifugal force on the rice to form a vortex, which causes friction and collision between the rice grains and between the rice grains and the polishing surface, thereby removing the bran powder on the surface of the rice grains and gelatinizing the starch on the surface to form a shiny waxy protective film, making the rice look shiny.

[0003] The rice before polishing needs to have a certain humidity to reduce the probability of rice grain breakage during the polishing process. Therefore, it is necessary to dry the rice after polishing to reduce the water content for storage. The rice that is not fully dried is prone to mildew due to the increase in temperature during the polishing process. Therefore, a cooling link is also set in the continuous processing process after polishing. In the prior art, cooling and drying are carried out in steps. In order to reduce energy consumption, drying is generally performed first and then cooling to make full use of the residual heat of the rice after polishing (higher temperature is conducive to drying efficiency). Taking the drum type as an example, the rice is dried by heating in the drum and then the rice is cooled.

[0004] In the above existing practices, on the one hand, cooling, drying and slag removal (a small amount of powder and residual particles after polishing) cannot be completed at one time, resulting in high energy consumption and low efficiency. On the other hand, the existing practices generate obvious dust, which affects the environment in the workshop. Utility Model Content

[0005] The purpose of the utility model is to provide a device for air cooling the filter residue after polishing in view of the above-mentioned problems existing in the prior art. The technical problem to be solved by the utility model is how to synchronously complete the cooling and slag removal of rice after polishing.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a device for air cooling polished filter residue, characterized in that it includes a wind cylinder, a feed hopper, an air inlet pipe and an exhaust pipe, the wind cylinder includes a cylindrical section and a conical section located below the cylindrical section, the large-diameter end of the conical section faces upward, a material pipe is connected to the circumferential surface of the cylindrical section, the feed hopper is connected to the middle of the material pipe, the air inlet pipe is connected to the rear end of the material pipe, the upper end of the exhaust pipe is located above the wind cylinder, the lower end of the exhaust pipe extends into the conical section, and the lower end of the wind cylinder is connected to a discharge elbow.

[0007] Furthermore, the air inlet pipe is connected to an air outlet end of a blower.

[0008] Furthermore, the upper end of the exhaust pipe is connected to a dust collector.

[0009] Furthermore, the dust collector is a cloth bag.

[0010] Furthermore, the lower end of the exhaust pipe has a flared opening.

[0011] Furthermore, an acute angle is formed between the axis of the material pipe and the axis of the wind tube.

[0012] Furthermore, the material pipe is located at an eccentric position of the wind cylinder.

[0013] Furthermore, a valve for controlling the discharge speed is provided at the discharge elbow.

[0014] This solution is beneficial to the cyclone dust removal principle. The cone section guides and contracts the airflow, causing the spiral radius of the airflow to gradually shrink until it hits the bottom and refluxes, and is discharged from the exhaust pipe. The discharge elbow slows down the discharge speed of the rice, allowing the airflow to hit the bottom and reflux. In this process, the airflow cools and dries the rice, and discharges the slag powder in the rice together.

[0015] The cyclone prolongs the airflow path, the rice material path in the wind tube, and the retention time of rice in the wind tube. The air cooling, air drying, and slag removal of the rice are completed simultaneously with high efficiency. The airflow acts on the rice in the barrel to achieve cooling, dehydration, and dust removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the rice residue air cooling device.

[0017] Figure 2 It is a cross-sectional view of the air duct in the rice filter residue air cooling device.

[0018] In the figure, 1, air duct; 2, feed hopper; 3, air inlet pipe; 4, exhaust pipe; 5, material pipe; 6, discharge elbow; 7, dust collector; 8, flaring. DETAILED DESCRIPTION

[0019] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0020] like Figure 1 and Figure 2 The filter residue air cooling device shown comprises an air duct 1, a feed hopper 2, an air inlet pipe 3 and an exhaust pipe 4. The air duct 1 comprises a cylindrical section and a conical section located below the cylindrical section. The large diameter end of the conical section faces upward. A material pipe 5 is connected to the circumferential surface of the cylindrical section. The feed hopper 2 is connected to the middle of the material pipe 5. The air inlet pipe 3 is connected to the rear end of the material pipe 5. The upper end of the exhaust pipe 4 is located above the air duct 1. The lower end of the exhaust pipe 4 extends into the conical section. The lower end of the air duct 1 is connected to a discharge elbow 6.

[0021] The air inlet pipe 3 is connected to the air outlet end of a blower, and a control valve is arranged at the air inlet pipe 3 to control the strength of the air flow.

[0022] The upper end of the exhaust pipe 4 is connected to a dust collector 7, which may be a cloth bag.

[0023] The lower end of the exhaust pipe 4 has a flared opening 8 to improve exhaust smoothness.

[0024] The axis of the material pipe 5 forms an acute angle with the axis of the wind tube 1, so that the material is discharged smoothly. Under the action of the airflow, the slag powder contained in the rice can synchronize with the airflow path during the process of the rice entering the wind tube 1 and moving down in the wind tube 1.

[0025] The material pipe 5 is located at an eccentric position of the air cylinder 1, so that the airflow in the air cylinder 1 forms a cyclone with a higher intensity.

[0026] A valve for controlling the discharge speed is provided at the inlet and outlet elbow 6 to control the discharge speed to ensure that the air flow will not be discharged from the bottom of the air duct 1.

[0027] This solution is beneficial to the cyclone dust removal principle. The conical cylinder section guides and contracts the airflow, so that the spiral radius of the airflow gradually decreases until it touches the bottom and refluxes, and is discharged from the exhaust pipe 4. The discharge elbow 6 slows down the discharge speed of the rice, which can make the airflow touch the bottom and reflux. In this process, the airflow cools and dries the rice, and discharges the slag powder in the rice together.

[0028] The cyclone prolongs the airflow path, the material path of the rice in the wind tube 1, and the retention time of the rice in the wind tube 1. The air cooling, air drying, and slag removal of the rice are completed simultaneously with high efficiency. The airflow acts on the rice in the barrel to achieve cooling, dehydration, and dust removal.

[0029] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A device for cooling filter residue after polishing, characterized in that: The invention comprises an air cylinder (1), a material feed hopper (2), an air inlet pipe (3) and an exhaust pipe (4); the air cylinder (1) comprises a cylindrical section and a conical section located below the cylindrical section, the large diameter end of the conical section faces upward, a material pipe (5) is connected to the circumferential surface of the cylindrical section, the material feed hopper (2) is connected to the middle of the material pipe (5), the air inlet pipe (3) is connected to the rear end of the material pipe (5), the upper end of the exhaust pipe (4) is located above the air cylinder (1), the lower end of the exhaust pipe (4) extends into the conical section, and the lower end of the air cylinder (1) is connected to a discharge elbow (6).

2. The air cooling device for filter residue after polishing according to claim 1, characterized in that: The air inlet pipe (3) is connected to the air outlet end of a blower.

3. The air cooling device for filter residue after polishing according to claim 2, characterized in that: The upper end of the exhaust pipe (4) is connected to a dust collector (7).

4. The air cooling device for filter residue after polishing according to claim 3, characterized in that: The dust collector (7) is a cloth bag.

5. The air cooling device for filter residue after polishing according to claim 1, characterized in that: The lower end of the exhaust pipe (4) has a flared opening (8).

6. The air cooling device for filter residue after polishing according to claim 1, characterized in that: An acute angle is formed between the axis of the material pipe (5) and the axis of the wind tube (1).

7. The air cooling device for filter residue after polishing according to claim 1, characterized in that: The material pipe (5) is located at an eccentric position of the wind cylinder (1).

8. The air cooling device for filter residue after polishing according to claim 1, characterized in that: The discharge elbow (6) is provided with a valve for controlling the discharge speed.

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