Comprehensive treatment device of industrial waste salt based on high temperature heat pipe

Abstract

The invention provides an industrial waste salt comprehensive treatment device which can remove impurities from industrial waste salt, and allow a final product to meet industrial salt requirements and a production process to be energy-saving and environment-friendly. The device comprises a high-temperature heat pipe pyrolyzing furnace and a plurality of coking towers, wherein the pyrolyzing furnace is connected with the coking towers by pipelines; an oblique partition is arranged in the middle of an inner cavity of the high-temperature heat pipe pyrolyzing furnace; a plurality of high-temperature gravity heat pipes are fixed on the partition; a material inlet and a gas channel are formed at the top of the high-temperature heat pipe pyrolyzing furnace; a coking tower partition is arranged at the middle end of each coking tower and divides an inner cavity of each coking tower into a waste heat recovery cavity at the upper end and an incoming material cavity at the lower end; the waste heat recovery cavities are connected with heat-conducting media by pipelines; a plurality of high-temperature gravity heat pipes are fixed on the coking tower partitions; and the two ends of each high-temperature gravity heat pipe are arranged in each waste heat recovery cavity and each incoming material cavity at the lower end respectively.

Description

technical field [0001] The invention relates to industrial waste treatment, in particular to an industrial waste salt comprehensive treatment device. Background technique [0002] In the process of producing hydrazine hydrate, furan phenol, pesticides, intermediates and other products, a large amount of industrial waste salt will be produced. The main component of industrial waste salt is sodium chloride, but there are also some organic and inorganic substances, so it cannot be directly applied to chlor-alkali industry. Among them, the organic matter content is about 1% to 10%; the inorganic matter content is about 1% to 6%, and the inorganic matter mainly includes carbonate, sulfate, phosphate and a very small amount of potassium ions; the sodium chloride content is about 60% to 90%; The rest is water. For example: the production of 1 ton of hydrazine hydrate produces approximately 3 tons of industrial waste salt, which contains a large amount of sodium chloride, sodium ...

AI Technical Summary

Problems solved by technology

At present, due to the lack of energy-saving and environmentally friendly treatment methods, this kind of waste is mainly disposed of by landfill, resulting in waste of resources and environmental pollution.

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