A liquid nitrogen freezing crushing box for waste tires

Abstract

The invention discloses a junked tire liquid nitrogen cryogenic grinding box and a using method. The junked tire liquid nitrogen cryogenic grinding box comprises a box body, a feeding inlet, a sealingdoor, a connection rope, a sliding plate, two brackets, two rotation wheels, four stand bars, a discharging outlet, a sealing cover, a high-pressure liquid nitrogen cabin, a nitrogen pipe, an electromagnetic valve, a spray pipe, a spray head, a decompression cabin, a spring, a draught fan, a ring-shaped air duct, a jet head, an air exhaust slot, a sealing rubber rod and a bypass pipe, wherein thefour stand bars are uniformly mounted at the bottom of the box body; the feeding inlet is formed above the side wall of the box body; the bottom end of the feeding inlet is rotatably connected with the sealing door; the sliding plate is rotatably mounted on the inner wall of the box body and below the feeding inlet; the two brackets are symmetrically fixed on the inner wall of the box body and between the feeding inlet and the sliding plate; and the rotation wheels are rotatably mounted at the tops of the brackets. According to the junked tire liquid nitrogen cryogenic grinding box, rubber bricks are stirred through intermittently spraying liquid nitrogen and intermittently blowing air, so that the rubber brick grinding speed is improved, the liquid nitrogen is saved, and the putting andtaking of the rubber bricks are convenient, so that the junked tire liquid nitrogen cryogenic grinding box is simple in structure and safe to use.

Description

technical field [0001] The invention relates to the technical field of waste tire treatment, in particular to a liquid nitrogen freezing crushing box for waste tires and a use method thereof. Background technique [0002] Tires are circular elastic rubber products that are rolled on the ground and rolled on various vehicles or machinery. Usually installed on metal rims, it can support the body, buffer external impact, realize contact with the road surface and ensure the driving performance of the vehicle. Tires are often used under complex and harsh conditions, and they are subjected to various deformations, loads, forces, and high and low temperature effects during driving, so they must have high load-bearing performance, traction performance, and cushioning performance. At the same time, it is also required to have high wear resistance and flex resistance, as well as low rolling resistance and heat generation. Half of the world's rubber consumption is used for tire produ...

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Problems solved by technology

[0003] The use of tires in daily life is huge, and there are many waste tires. Therefore, the treatment of waste tires is an important task. In the actual crushing of tires, the process of changing tires from large tires to ultrafine powder is very difficult, which is not only time-consuming and laborious, but also has poor results. , but the introduction of liquid nitrogen can greatly speed up and simplify this process. From the process of dismantling tires, tires into rubber blocks, and rubber blocks into fine powder, the process can be accelerated and simplified by the effective use of liquid nitrogen, for Therefore, we propose a liquid nitrogen freezing crushing box for waste tires and its use method

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