Pyrolyzer process and device for treating solid waste salt containing water, organic matter and other soluble gas

Abstract

The invention relates to a pyrolyzer process and device for treating solid waste salt containing water, organic matter and other soluble gas. The process includes the steps that (1) the pyrolysis decomposition temperature of other pollutants in the to-be-treated solid waste salt is calculated and the pyrolyzer design pressure and temperature are determined according to the melting temperature of the solid waste salt; (2) the to-be-treated solid waste salt is cracked and then delivery into an external-fire heating continuous-rotation rotary kiln pyrolyzer, the pyrolyzer temperature and pressureare set according to the step (1), the organic matter pyrolysis temperature is achieved in an indirect heated mode, and volatile and pyrolytic substances in the solid waste salt form gases which areseparated from the waste salt; during pyrolysis, smoke generated by pyrolysis is used for gas sealing of the pyrolyzer, meanwhile the inert atmosphere in the pyrolyzer is guaranteed, and smoke generated by pyrolysis is guided to subsequent auxiliary incineration; and (3) waste gases generated by pyrolysis is guided out of the pyrolyzer for incineration and purification treatment and then discharged, the waste salt obtained after pyrolysis is discharged regularly in a gas-locking salt discharging mode, and resource utilization is achieved after salt separation.

Description

technical field [0001] The technique of the invention mainly relates to the fields of agrochemical, fine chemical, chemical, rubber and environmental protection techniques. The invention relates to the use of external combustion heating to continuously rotate the rotary kiln cracking furnace + waste gas incineration purification method to treat solid waste salt containing water, organic matter and other soluble gases produced by the above industries. Background technique [0002] Waste salt is the main pollutant that plagues the development of most of the country's fine chemical, agrochemical, chemical, and environmental protection industries. Waste salt is divided into liquid and solid waste salt. The composition of waste salt is generally complex, not only containing salt, but also containing waste water and organic matter. , activated carbon, minerals and other substances, it is difficult to separate directly by physical and chemical methods. At present, domestic liquid ...

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Problems solved by technology

[0003] The technical problem solved by the present invention is: mainly to solve the solid waste salt containing water, organic matter and other dissolved gases in the above industries, so that other harmful substances in the waste salt are burned by thermal cracking, and the remaining single or mixed waste salt is passed through the separation process. Salt method to obtain a single industrial salt that can be recycled as a resource

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