Multi-stage magnetic separation device for pyrolysis carbon black and working method

Abstract

The invention discloses a multi-stage magnetic separation device for cracked carbon black and a working method, and relates to the technical field of waste tire thermal cracking equipment, the multi-stage magnetic separation device comprises a rack, and the rack is sequentially provided with a feeding hopper, a crushing mechanism, a first-stage magnetic separation mechanism, a second-stage magnetic separation mechanism, a third-stage magnetic separation mechanism, a speed reducer and an electric cabinet from top to bottom; the crushing mechanism is installed in the feeding hopper, the first-stage magnetic separation mechanism is in transmission connection with the speed reducer through a transmission belt, the second-stage magnetic separation mechanism is in transmission connection with the first-stage magnetic separation mechanism through a transmission belt, and the third-stage magnetic separation mechanism is in transmission connection with the second-stage magnetic separation mechanism through a transmission belt. According to the multi-stage magnetic separation device for the cracked carbon black and the working method, after the cracked carbon black material is conveyed into the feeding hopper, the material is crushed under the action of the crushing mechanism, so that the caked carbon black and steel wires can be separated, the subsequent magnetic separation operation is facilitated, and the processing precision of magnetic separation is improved.

Description

technical field [0001] The invention relates to the technical field of waste tire thermal cracking equipment, in particular to a multi-stage magnetic separation device for cracking carbon black and a working method. Background technique [0002] The recycling and reuse of waste tires is usually treated by first cutting the entire tire bead, then crushing the tire, and then making the fragments into rubber powder, reclaimed rubber or for pyrolysis. In the presence of oxygen or inert gas, the rubber polymer of waste tires is cracked into pyrolysis gas, pyrolysis oil and pyrolysis carbon black at a specific temperature. The generated pyrolysis gas is the energy source for the pyrolysis of waste tires, and the oil and Carbon black is the main product of waste tire pyrolysis, and recycled carbon black is the key product of tire pyrolysis. After grinding, modification, granulation, drying and screening, pyrolysis carbon black can be used as the raw material for making tires. [0...

AI Technical Summary

Problems solved by technology

[0003] The existing carbon black steel wire separation process after pyrolysis of broken old tires, due to the high pyrolysis temperature, the steel wire is easy to form agglomerates, the separation of carbon black and steel wire is not complete, and there is still a small amount of steel wire in the carbon black, which makes the carbon black unable to be processed. Fine grinding and granulation are not ideal in terms of practicality and economy

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