Treatment device for solid product of pyrolysis rotary kiln

Abstract

The invention discloses a treatment device for a solid product of a pyrolysis rotary kiln. The treatment device comprises a solid product powdering device arranged at the front part of a rotary kiln body and a collection discharge mechanism arranged at the back part of the rotary kiln body. The treatment device is reasonable in structure and has the functions that blocky objects or steel wire frames are damaged, the solid gasification time is shortened, and solid waste residues such as powder, steel wires, and the like, are collected.

Description

technical field [0001] The invention relates to a device for treating solid products of a pyrolysis rotary kiln. Background technique [0002] Organic polymer solid waste includes waste plastics, waste tires and other rubber waste, waste cables, paper, etc. Among them, waste tires, waste hoses, waste cables and other wastes contain other wastes such as steel wire, aluminum, copper, etc. Pyrolysis of organic waste is an endothermic reaction. Common pyrolysis reactors include fixed bed, fluidized bed, chemical rotary kiln and tubular reactor. The pyrolysis rotary kiln reactor is used to pyrolyze plastic waste. Since the plastic enters the kiln, it can be gasified instantly, and the gas and solid are separated instantly. The solid product flows continuously to the outlet of the kiln along the slope, and the powder has been completed. Pyrolysis of waste tires, waste rubber hoses, and waste cables often adopts two methods: 1. Use a fixed kettle to put the whole tire into pyroly...

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Problems solved by technology

Pyrolysis of waste tires, waste rubber hoses, and waste cables often adopts two methods: 1. Use a fixed kettle to put the whole tire into pyrolysis. Solid waste steel wire, copper wire and carbon black need to be removed by stopping the furnace to cool down. can be extremely high

The second is to use a rotary kiln for pyrolysis. There are two requirements for waste tires, rubber hoses, and cables, or they can be put into batch production as a fixed kettle, or they can be crushed into small pieces before feeding to remove steel wires and copper wires (up to 90%) , these two methods are very energy-intensive

For example, the size of the crushed rubber blocks of tires is only changed to 30mm*30mm, and the steel wires are no longer separated and directly enter the rotary kiln. Although the energy consumption of tire pretreatment is reduced, the gasification process is longer. If the shape is not changed or the steel wire mesh becomes a ball, the gasification of the massive reactant is not complete, and the volatile content is relatively high; the reaction product is evenly distributed along the length of the rotary kiln, and the solid waste discharge mechanism installed at the outlet of the kiln must operate synchronously to improve the efficiency. Very low, discharge solid waste and discharge entrained gas at the same time

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