Regeneration and treatment technique for plastic

Abstract

The invention relates to a waste energy renewal treatment process which belongs to the waste energy renewal treatment process technical field. The utility model comprises the following working procedures: (1) crushing, extrusion, depolymerization, condensation and buffering; (2) the liquid heavy oil and the paraffin on the bottom of a tempering tower can be processed and treated, and can also be driven into a cracking kettle to be made catalytic cracking, condensation and buffering; (3) the carbon hydrogen compounds which can not be liquefied under normal temperature after the cracking and are less than five carbon atoms pass through a scrubber tank for gas scrubbing and a drying canister for gas filtering, and then are made suction compression and storage of the pyrolysis gas; (4) the combustible carbon hydrogen compounds obtained by suction compression and storage can be taken as the heating source of a heater in the depolymerization working procedure. The invention can depolymerize the plastics with different depolymerization temperatures, realize the zero-pressure depolymerization and zero-pressure automatic deslagging, eliminate the gas leakage or the over-slag, has simplified process operation and convenient maintenance, has no ablation on direct heated area on the bottom of the kettle, can clean the coking in the kettle in time, and ensure continuous production and normal depolymerization.

Description

1. Technical field [0001] The invention relates to a waste regeneration treatment process, in particular to a treatment process for oiling mixed plastic waste to extract fuel, and belongs to the technical field of waste energy regeneration treatment process. 2. Background technology [0002] The invention belongs to the technical field of using plastic garbage to extract fuel, and relates to an oil-to-oil process for extracting gasoline, diesel oil, etc. from waste plastics. The oil-chemical equipment has its own characteristics. The problems existing in the depolymerization in the same tank are: the amount of oil decreases and the residue increases; the bottom of the depolymerization tank is directly deformed or ablated by the heating area, and the heating energy cannot be fully utilized; it pollutes the air; Continuous production and normal depolymerization are hindered. 3. Contents of the invention [0003] The purpose of the present invention is to overcome the shortc...

AI Technical Summary

Problems solved by technology

The oil-chemical equipment has its own characteristics. The problems existing in the depolymerization in the same tank are: the amount of oil decreases and the residue increases; the bottom of the depolymerization tank is directly deformed or ablated by the heating area, and the heating energy cannot be fully utilized; it pollutes the air; hinders continuous production and normal depolymerization