Byproduct sodium chloride salt recovery device, special incinerator thereof and byproduct sodium chloride salt recovery method

Abstract

The invention provides a byproduct sodium chloride salt recovery device, a special incinerator thereof and a byproduct sodium chloride salt recovery method. The recovery device comprises a drying device, a grinding and screening device, an incinerator, a cyclone separation device, a tail gas treatment and discharge device and a dissolving and filtering device. According to the recovery device, bymeans of sufficient incineration of the incinerator, organic matter in the byproduct sodium chloride salt can be thoroughly removed, the incinerated byproduct sodium chloride salt powder is free of melting and caking phenomena and easy to dissolve, the inner wall of the incinerator is smooth and free of dead corners, the incineration temperature is reasonably controlled, and the salt is free of melting and caking phenomena. The byproduct sodium chloride salt obtained after treatment is dissolved and filtered to prepare saline water, and the saline water can be used for ionic membrane liquid caustic soda production.

Description

Technical field[0001]The invention relates to the technical field of by-product industrial salt treatment, in particular to a by-product sodium chloride salt recovery equipment, its special incinerator and its recovery method.Background technique[0002]In the process of production and zero discharge of wastewater, the pharmaceutical and chemical industry often produces a large amount of by-product salt, especially the by-product sodium chloride salt, which is not only huge in quantity, but also difficult to handle. The by-product sodium chloride salt treatment technology includes: salt washing method, oxidation method, recrystallization method, pyrolysis method, incineration method, etc.: salt washing method is to realize the separation of each component according to the solubility of each component in the solvent Generally speaking, this method will always leave some impurities during the solid-liquid separation, which limits the resource utilization of the by-product sodium chlorid...

AI Technical Summary

Problems solved by technology

[0006] One of the purposes of the present invention is to provide a by-product sodium chloride salt recovery equipment to solve the problems in the prior art that the by-product sodium chloride salt has high processing costs, incomplete removal of organic matter and difficulty in reuse.

[0007] The second purpose of the present invention is to provide a special incinerator for by-product sodium chloride salt recovery equipment, to solve the problem that the existing incinerators do not completely incinerate the organic matter in the by-product sodium chloride salt

[0008] The third object of the present invention is exactly to provide a kind of by-product sodium chloride salt recovery method, to solve the problem that the organic matter in the existing by-product sodium chloride salt recovery method is not completely removed

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