Device for crushing waste tire particles through high-density airflow

Abstract

The utility model provides a device for crushing waste tire particles by high-density airflow. The device comprises a liquid nitrogen device bottle, an air compressor, a nozzle, a slide way and a material receiving bin, the liquid nitrogen device bottle and the air compressor are respectively connected to an inlet of the nozzle through pipelines; a pressure reducing valve, a pressure gauge and a pressure regulating gauge are sequentially arranged on the pipeline between the air compressor and the inlet of the nozzle; an outlet of the nozzle is connected to an inlet of the slide way; an outlet of the slide way is connected to the material receiving bin; a plate target is arranged at the upper part of the material receiving bin, and airflow output from the outlet of the slide way can impact the plate target; a first filter screen is arranged at the lower part of the plate target and the outlet of the slide way in the material receiving bin; a discharge hole is formed in the bottom of the receiving bin; a feeding device is arranged on the upper portion of the sliding way. According to the device, the air compressor and the liquid nitrogen are adopted for controlling the temperature and the air pressure of the impact gas, and the waste tire particles are impacted on the plate target through airflow impact, so that the particles are crushed.

Description

Technical Field

[0001] The utility model relates to the field of waste tire particle processing devices, in particular to a device for crushing waste tire particles with high-density airflow. Background Art

[0002] Crushing is mainly a way to physically reduce the shape and size of raw materials of different materials. The main component of waste tires is rubber. Such thermosetting materials are cross-linked during processing and molding, so they are not suitable for crushing and utilization by reheating. The traditional pretreatment methods for recycling waste tire products mainly include shearing, crushing and grinding, and the recycling process is extremely complicated. The most common methods for crushing waste tires are room temperature crushing, low temperature crushing, solution crushing and other crushing methods. The room temperature powder crushing method mainly crushes waste tires by shearing, impacting and other methods using wontons and other crushing devices. The disadvantage is that the crushing efficiency is low, the crushing particle size is not ideal, and the equipment wear and consumption is large. The low temperature crushing method is much better than the crushing effect at room temperature, but the cost is not advantageous. The solution crushing method can usually obtain microparticle rubber powder with a particle size of less than 75 microns, but compared with the room temperature crushing method and the low temperature crushing method, the cost is the highest, and the market promotion and application is difficult. In addition, the current common waste tire crushing also requires particle size screening, which increases the workload. Summary of the invention

[0003] In order to improve the crushing efficiency of waste tire particles and directly classify the particles after crushing, the utility model provides a device for crushing waste tire particles with a high-density airflow.

[0004] The implementation method of the utility model is as follows: a device for crushing waste tire particles with high-density airflow, comprising a liquid nitrogen device bottle, an air compressor, a nozzle, a slideway and a receiving bin; the liquid nitrogen device bottle and the air compressor are respectively connected to the inlet of the nozzle through pipelines; a pressure reducing valve, a pressure gauge and a pressure regulating gauge are sequentially arranged on the pipeline between the air compressor and the nozzle inlet; the outlet of the nozzle is connected to the inlet of the slideway; the outlet of the slideway is connected to the receiving bin; a plate target is arranged on the upper part of the receiving bin, and the airflow output from the slideway outlet can impact the plate target; a first filter is arranged inside the receiving bin at the lower part of the plate target and the slideway outlet; a discharge port is arranged at the bottom of the receiving bin; a feeding device is arranged on the upper part of the slideway, and a feeding port switch is arranged at the bottom of the feeding device. In this device, the pressure reducing valve, the pressure gauge and the pressure regulating gauge are used to adjust and control the air flow pressure output by the air compressor; the liquid nitrogen device bottle is used to provide liquid nitrogen to reduce the temperature of the air flow; the liquid nitrogen can be used to pre-cool the particles to be crushed; the feeding device is used to place the waste tire particles to be crushed; the air flow output by the air compressor impacts the waste tire particles entering the slideway, so that the waste tire particles rush toward the plate target along the slideway, thereby achieving the crushing of the waste tire particles. The operating principle and process of the device are as follows: (1) Turn on the air compressor, adjust the output pressure through the pressure reducing valve, monitor the air flow pressure output by the air compressor through the pressure gauge, and further stabilize the air flow pressure output by the air compressor through the pressure regulating valve; (2) Turn on the switch of the liquid nitrogen device bottle, and the liquid nitrogen enters the slide through the nozzle inlet to form a confluence with the air flow output by the air compressor, and at the same time, the temperature in the slide can be reduced to the glass transition temperature of the waste rubber; (3) Turn on the feed port switch of the feeding device, and the waste tire particles to be crushed hit the plate target under the impact of the air flow, so that the waste tire particles are crushed; (4) The crushed waste tire particles fall onto the first filter screen, and the particles with a size smaller than the mesh of the first filter screen enter the bottom of the collecting bin and are collected through the discharge port; the particles with a size larger than the mesh of the first filter screen remain on the first filter screen. At regular intervals, the waste tire particles on the first filter screen are transferred to the feeding device and enter the slide again for crushing.

[0005] Preferably, the angle of the plate target is adjustable, and the force with which the waste tire particles impact the plate target is achieved by adjusting the angle between the plate target and the slideway outlet.

[0006] Preferably, a second filter is provided below the first filter in the receiving bin, and the mesh of the second filter is smaller than that of the first filter. By providing the secondary filter, the crushed waste tire particles can be further classified.

[0007] Preferably, the first filter screen and the second filter screen are both provided with a vibration device, and the vibration device is used to prevent the crushed waste tire particles from clogging the meshes of the first filter screen and the second filter screen.

[0008] Preferably, the plate target is made of high manganese steel with a thickness of 3-5 mm.

[0009] Preferably, the slideway outlet aperture is smaller than the slideway inlet aperture.

[0010] Preferably, a visual window is provided on the side wall of the collecting bin above the first filter screen, through which the collection of waste tire particles on the first filter screen can be observed, so that the waste tire particles on the first filter screen can be removed conveniently at the first time.

[0011] The utility model uses liquid nitrogen to control the temperature in the slideway to be lowered to the glass transition temperature of rubber, and uses the powerful airflow generated by the air compressor to make the waste tire particles collide with the plate target. Since the brittleness of rubber increases at the glass transition temperature, the waste tire particles are easy to be crushed. A first filter is set in the receiving bin, and the waste tire particles that meet the size requirements after crushing can be graded and recycled. The waste tire particles that do not meet the size requirements can be re-entered into the slideway for crushing again, thereby achieving consistency in the size of the waste tire particles after crushing. By further setting a secondary filter, the classification of the waste tire particles after crushing can be further achieved, reducing the workload of subsequent particle screening. At the same time, the vibration device is used to prevent the filter mesh from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of a device for crushing waste tire particles with high-density airflow in the utility model.

[0013] Figure 2 This is a structural diagram of the material receiving bin of the high-density airflow crushing waste tire particle device of the utility model.

[0014] Among them, 1. Liquid nitrogen device bottle; 2. Air compressor; 3. Pressure reducing valve; 4. Pressure gauge; 5. Pressure regulating valve; 6. Nozzle; 7. Feeding device; 71. Feeding port switch; 8. Slide; 9. Receiving bin; 91. Plate target; 92. First filter screen; 93. Discharge port; 94. Second filter screen; 95. Vibrating device; 96. Visual window. DETAILED DESCRIPTION

[0015] The following is combined with Figure 1-2 , the specific implementation methods of the utility model are described in detail, but it should be understood that the protection scope of the utility model is not limited by the specific implementation methods.

[0016] like Figure 1As shown, a device for crushing waste tire particles with high-density airflow comprises a liquid nitrogen device bottle 1, an air compressor 2, a nozzle 6, a slide 8 and a receiving bin 9; the liquid nitrogen device bottle 1 and the air compressor 2 are respectively connected to the inlet of the nozzle 6 through pipelines; a pressure reducing valve 3, a pressure gauge 4 and a pressure regulating gauge 5 are sequentially arranged on the pipeline between the air compressor 2 and the inlet of the nozzle 6; the outlet of the nozzle 6 is connected to the inlet of the slide 8; the outlet of the slide 8 is connected to the receiving bin 9; a plate target 91 is arranged on the upper part of the receiving bin 9, and the airflow output from the outlet of the slide 8 can impact the plate target 91; a first filter screen 92 is arranged inside the receiving bin 9 at the lower part of the plate target 91 and the outlet of the slide 8; a discharge port 93 is arranged at the bottom of the receiving bin 9; a feeding device 7 is arranged on the upper part of the slide 8, and a feeding port switch 71 is arranged at the bottom of the feeding device 7. In the present device, since the air flow output by the air compressor 2 is too large, the pressure is first reduced by the pressure reducing valve 3, and then the pressure is detected by the pressure gauge 4, and the pressure of the air flow output by the air compressor 2 is further adjusted and controlled by the pressure regulating gauge 5. The liquid nitrogen device bottle 1 is used to provide liquid nitrogen to reduce the temperature of the air flow, and the liquid nitrogen can be used to pre-cool the particles to be crushed; the feeding device 7 is used to place the waste tire particles to be crushed, and the air flow output by the air compressor 2 impacts the waste tire particles entering the slide 8, so that the waste tire particles rush along the slide 8 to the plate target 91, thereby achieving the crushing of the waste tire particles. The operating principle and process of the device are as follows: (1) Turn on the air compressor 2, adjust the output pressure through the pressure reducing valve 3, monitor the air flow pressure output by the air compressor 2 through the pressure gauge 4, and further stabilize the air flow pressure output by the air compressor 2 through the pressure regulating valve 5; (2) Turn on the switch of the liquid nitrogen device bottle 1, and the liquid nitrogen enters the slide 8 through the nozzle 6 inlet to form a confluence with the air flow output by the air compressor 2, and at the same time, the temperature in the slide 8 can be reduced to the glass transition temperature of the waste rubber; (3) Turn on the feed port switch 71 of the feeding device 7, and the waste tire particles to be crushed hit the plate target 91 under the impact of the air flow, so that the waste tire particles are crushed; (4) The crushed waste tire particles fall onto the first filter screen 92, and the particles with a size smaller than the mesh of the first filter screen 92 enter the bottom of the collecting bin 9 and are collected through the discharge port 93; the particles with a size larger than the mesh of the first filter screen 92 remain on the first filter screen 92. At regular intervals, the waste tire particles on the first filter screen 92 are transferred to the feeding device 7 and enter the slide 8 again for crushing.

[0017] Furthermore, the angle of the plate target 91 is adjustable, and by adjusting the angle between the plate target 91 and the exit of the slideway 8 , the force with which the waste tire particles impact the plate target 91 can be adjusted.

[0018] Furthermore, a second filter screen 94 is provided below the first filter screen 92 in the receiving bin 9, and the mesh of the second filter screen 94 is smaller than the mesh of the first filter screen 92. By providing the secondary filter screen, the crushed waste tire particles can be further classified.

[0019] Further, such as Figure 2 As shown, the first filter screen 92 and the second filter screen 94 are both provided with a vibration device 95 , through which the crushed waste tire particles are prevented from clogging the meshes of the first filter screen 92 and the second filter screen 94 .

[0020] Furthermore, the plate target 91 is made of high manganese steel and has a thickness of 3-5 mm.

[0021] Furthermore, the exit aperture of the slideway 8 is smaller than the entrance aperture of the slideway 8 .

[0022] Further, such as Figure 2 As shown, a visual window 96 is provided on the side wall of the collecting bin 9 above the first filter screen 92, through which the collection of waste tire particles on the first filter screen 92 can be observed, so that the waste tire particles on the first filter screen 92 can be removed as soon as possible.

Claims

1. A device for crushing waste tire particles with high-density airflow, characterized in that: It comprises a liquid nitrogen device bottle, an air compressor, a nozzle, a slideway and a material receiving bin; the liquid nitrogen device bottle and the air compressor are respectively connected to the inlet of the nozzle through pipelines; a pressure reducing valve, a pressure gauge and a pressure regulating gauge are arranged in sequence on the pipeline between the air compressor and the inlet of the nozzle; the outlet of the nozzle is connected to the inlet of the slideway; the outlet of the slideway is connected to the material receiving bin; a plate target is arranged on the upper part of the material receiving bin, and the airflow output from the outlet of the slideway can impact the plate target; a first filter is arranged inside the material receiving bin at the lower part of the plate target and the outlet of the slideway; a discharge port is arranged at the bottom of the material receiving bin; a feeding device is arranged on the upper part of the slideway, and a feeding port switch is arranged at the bottom of the feeding device.

2. The device for crushing waste tire particles with high-density airflow according to claim 1 is characterized in that: The plate target angle is adjustable.

3. The device for crushing waste tire particles with high-density airflow according to claim 1 is characterized in that: A second filter is arranged below the first filter in the receiving bin, and the mesh of the second filter is smaller than that of the first filter.

4. The device for crushing waste tire particles with high-density airflow according to claim 3 is characterized in that: The first filter screen and the second filter screen are both provided with a vibration device.

5. The device for crushing waste tire particles with high-density airflow according to claim 1 is characterized in that: The plate target is made of high manganese steel with a thickness of 3-5 mm.

6. The device for crushing waste tire particles with high-density airflow according to claim 1 is characterized in that: The slideway exit aperture is smaller than the slideway entrance aperture.

7. The device for crushing waste tire particles with high-density airflow according to claim 1 is characterized in that: A visual window is arranged on the side wall of the material receiving bin above the first filter screen.

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