Waste tire crushing device and crushing method thereof

Abstract

The invention discloses a waste tire crushing device and a crushing method thereof, and belongs to the technical field of waste tire crushing. The waste tire crushing device comprises a box body, a crushing mechanism, a first driving mechanism, a herringbone heat insulation plate and a plurality of discharging holes; the box body is provided with a feed port at the top, supporting legs at four corners of the bottom and a discharge port at the rear end; the crushing mechanism is arranged in the feed port; the first driving mechanism is arranged at the front end part of the box body; the first driving mechanism is further connected with the crushing mechanism to realize the rotation of the crushing mechanism; and the herringbone heat insulation plate is arranged between the front inner walland the rear inner wall of the box body, the discharging holes are formed in the top of the herringbone heat insulation plate, and a first crushing chamber is formed between the herringbone heat insulation plate and the feed port. According to the waste tire crushing device and the crushing method thereof, the device facilitates heating during crushing, the mass of rubber can be reduced, the rubber can not stacked on the bottom by pumping the helium gas so that efficient stirring can be achieved, meanwhile, helium gas belongs to inert gas, so that the rubber is nonflammable in the crushing process, the temperature is reduced through cooling, the rubber is rapidly cooled, the crushing effect is good, and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of waste tire shredding, more specifically, to a waste tire shredding device and a shredding method thereof. Background technique [0002] At present, more than 100 million waste tires are produced every year in China. The waste tires piled up in the suburbs are not only detrimental to sight, but also have the risk of major accidents due to natural fire. It is generally believed that the recycling of waste tires The utilization rate exceeds 90%, and it is the leader in waste utilization among industrial wastes. However, the actual situation is quite different from this view. If you look at the recycling of waste tires, more than half of them are heat utilization. That is, burning waste tires to generate electricity or using them as fuel when sintering cement can be said to be nothing more than incineration. [0003] The utilization value of rubber powder obtained from waste tires is very high, and new utili...

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Problems solved by technology

[0002] At present, more than 100 million waste tires are produced every year in China. The waste tires piled up in the suburbs are not only detrimental to sight, but also have the risk of major accidents due to natural fire. It is generally believed that the recycling of waste tires The utilization rate exceeds 90%, and it is the leader in waste utilization among industrial wastes. However, the actual situation is quite different from this view. If you look at the recycling of waste tires, more than half of them are heat utilization. That is, burning waste tires to generate electricity or using them as fuel when sintering cement can be said to be nothing more than incineration

[0003] The utilization value of rubber powder obtained from waste tires is very high, and new utilization fields have been successfully developed starting from paving materials for preventing freezing. As high as about 200 yen, it has not yet reached the practical stage in essence. Fortunately, but also unfortunately, because waste tire fragments can be used as high-quality fuel, the idea of ​​invisibly burning directly is still deeply rooted so far. However, in European and American countries, It is very important to re-attach tire rubber and renew tires twice and three times. However, our country, which relies on imports for all raw materials, does not allow a large amount of rubber to be consumed without changing, and must actively start recycling waste tires. The utilization of rubber has shifted from centering on heat utilization to material recycling that effectively utilizes the characteristics of rubber

[0004] At present, the crushing and crushing of tire rubber adopts a double-shaft shearing crusher or a single-shaft impact crusher. As small as possible, usually about 0.1mm relative movement, to cut the rubber, but when the rubber in the waste tires is crushed, a large amount of heat will be generated due to the crushing, and the rubber itself is a flammable material. During the crushing process, the possibility of rubber flammability is easy to appear. Since the rubber itself has a relatively heavy mass, it will accumulate on the bottom layer during crushing and is not easy to be crushed. How to reduce its mass and make it non-flammable during the crushing process is The problem we need to solve. At the same time, the existing crushing mechanism has low crushing effect and low crushing efficiency due to its simple and unreasonable structure.

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