Horizontal screw structure pyrolysis furnace for recycling waste tire resources

Abstract

The invention discloses a horizontal type screw rod structure cracking furnace for waste tire resource recycling. The horizontal type screw rod structure cracking furnace comprises a sealed furnace body, wherein a tire block inlet tube and a cracking gas outlet tube are respectively arranged on the left side of the upper part and the right side of the upper part of the furnace body; the furnace body is internally provided with a rotor; two ends of the rotor are respectively supported in a left bearing support and a right bearing support; the rotor is driven to rotate through a transmission system at the left end of the rotor; a heating jacket is arranged at the lower part of the outer side of the furnace body; a cracking product outlet tube is arranged at the lower part of the right end of the furnace body; the whole device is mounted on a saddle support. A heat source is provided by virtue of a hollow shaft and the jacket together, so that a great heat conduction area is achieved; separated cracking products can be used as the heat source; the high-temperature gas inside the hollow shaft and the jacket flows in a countercurrent manner, the jacket only wraps a lower cylinder and contacts a cracking reaction position, multi-stage serial connection is adopted, and baffle plates are arranged inside the jacket, so that the retention time of the high-temperature gas is prolonged; the screw pitches of spiral blades are spare in the front part and dense in the rear part, the cracking products are completely discharged outside the cylinder along with rotation of the spiral blades, and shutdown operation is not required.

Description

technical field [0001] The invention relates to a pyrolysis furnace, in particular to a horizontal screw structure pyrolysis furnace for recycling waste tire resources. Background technique [0002] With the improvement of people's living standards and the development of the logistics industry, the number of private cars and trucks in my country has increased year by year, and a lot of garbage - waste tires have also been produced. Recycling waste tires can not only relieve the pressure on the environment, reduce pollution, but also realize resource regeneration, thus bringing economic and environmental benefits. At present, there are three main methods of recycling waste tires: mechanical crushing to make rubber powder, desulfurization to produce reclaimed rubber, and pyrolysis to produce important chemical raw materials such as heavy oil and carbon black. Among them, mechanical crushing to make rubber powder is an ideal processing method. However, since rubber is a tough ...

AI Technical Summary

Problems solved by technology

[0003] There are various forms of cracking equipment at present, such as moving bed, fixed bed, fluidized bed, ablation bed, suspension furnace and rotary kiln, etc. Most of them are indirect heating devices. The problem encountered is that the cracking conditions are not easy to maintain for a long time. The system feeds in batches and cannot run continuously for a long time

In addition, the poor sealing performance of the cracking equipment under high temperature conditions will lead to cracking gas leakage during the cracking process, affecting operational safety

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