Operation method of waste tire pyrolysis reaction furnace

Abstract

The invention relates to the technical field of environmental protection, in particular to an operation method of a waste tire pyrolysis reaction furnace. The operation method is characterized in thatharrow nails are distributed on the outer surface of a rotary harrow roller body in a spiral-line-like mode, the included angles between the harrow nails and the section of the rotary harrow roller body are adjusted, three fourth of the harrow nails rotate along with the rotary harrow roller body to apply downward pushing force to the rubber block, and one fourth of the harrow nails rotate alongwith the rotary harrow roller body to apply upward pushing force to the rubber block. The rake nails apply downward pushing force to the rubber block to help the asphalt jelly and the steel wire ballto be smoothly discharged, the resultant force of the two rake nails rubs and cuts the rubber block, the pyrolytic carbon hard shell is rubbed to enable the rubber block to be continuously pyrolyzed,meanwhile, the rubber block accumulation layer is stirred to form a gap, and pyrolytic oil gas can escape from the gap of the accumulation layer. The pyrolysis oil gas transfers mass and heat with therubber block in the upward flowing process, and the gas-liquid-solid mass and heat transfer efficiency far exceeds the solid and solid heat transfer efficiency of the rotary rake roller body and therubber block.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to an operation method of a waste tire pyrolysis reaction furnace. Background technique [0002] Waste tires are common solid waste pollutants, and people use many ways to recycle them to achieve harmless treatment, among which the preparation of fuel oil and carbon black by pyrolysis of waste tires is one of the solutions. Chinese invention patent (patent application number is 02112328.4, patent name is vertical pyrolysis tower for recycling industrial carbon black and fuel oil by pyrolysis of waste tires) discloses a vertical pyrolysis tower for recycling industrial carbon black and fuel oil by pyrolysis of waste tires , which is characterized in that it has a closed vertical tower body, and an upper scraping and stirring device, a tire feed port and a cracking gas outlet are arranged at the upper end of the tower body, and the upper hollow heating disc and the lo...

AI Technical Summary

Problems solved by technology

[0003] Existing technology - vertical pyrolysis tower used for pyrolysis of waste tires to recover industrial carbon black and fuel oil A solution is proposed for the continuous production of fuel oil and carbon black by pyrolysis of waste tires. The vertical pyrolysis tower is designed with reference to the working principle of the plate tower Multi-stage trays (hollow discs), but plate towers are suitable for gas-liquid two-phase fluids, not suitable for waste tire rubber blocks, let alone rubber blocks containing steel wires. The reason is very simple, the rubber block in the cracked state is viscous The jelly will block the passage for fluid flow in the hollow disc, resulting in the stop of the cracking reaction process, and the agglomerated steel wires will not only block the flow channel, but also sink into the rake blade and the disc, causing the agitator shaft to lock; the existing Technology 2 The waste tire pyrolysis device is similar to the working principle of a reactor with an external heating jacket and a built-in agitator. The high-temperature flue gas passes through the flue chamber between the inner wall of the furnace and the hearth body to heat the hearth body. The arm stirs and mixes the rubber blocks of waste tires. In order to increase the heat exchange area, the upper and lower annular disks are designed with flue gas passages for high-temperature flue gas. The disadvantage is that the rubber blocks containing steel wires form viscous particles during the pyrolysis process. The mixture containing steel wire pellets adheres to block all flow channels such as the feeding channel, thereby stopping the pyrolysis process

Images