Drying device for coking desulfurized sulfur foam and desulfurized effluent

Abstract

The invention discloses a drying device for coking desulfurized sulfur foam and desulfurized effluent. The device comprises a desulfurized sulfur foam and desulfurized effluent conveying device, a drying device and a tail gas treatment device which are connected with each other in turn, wherein a settling device is arranged between the drying device and the tail gas treatment device, and an outlet of the tail gas treatment device is connected with a gas inlet of a tail gas cleaning device. The device disclosed by the invention can effectively treat the desulfurized sulfur foam and desulfurized effluent; two sulfur-bearing wastes are dried together, so that salt-containing crude sulfur powder is acquired; and the device has a simple structure, is low in cost, is easy in operation and can successfully solve the problems of environmental pollution and high running cost of the prior art.

Description

technical field [0001] The invention discloses a drying device, in particular to a drying device for coking desulfurization sulfur foam and desulfurization waste liquid. Background technique [0002] Coking gas desulfurization by-product sulfur foam drying belongs to the category of sulfur production, but the sulfur foam contains more impurities and generally needs to be purified. At present, there are several types of sulfur purification methods: ①melting method, which has problems such as low purity of recovered sulfur, low sulfur yield, high energy consumption, and high production cost; ②extraction method, using an extractant to dissolve sulfur in the material And adopt the method of solid-liquid separation to separate sulfur. Commonly used extractants include carbon disulfide, tetrachlorethylene, carbon tetrachloride, etc.; ③ sublimation method, that is, the principle of heating sulfur to the boiling point and then evaporating for purification. The above methods are ma...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a drying device for coking desulfurization foam and desulfurization waste liquid, which can effectively treat desulfurization foam and desulfurization waste liquid, and dry the two kinds of sulfur-containing waste materials together to obtain salt-containing crude sulfur powder , the device has a simple structure, low cost and easy operation, and successfully solves the problems of environmental pollution and high operating cost of the existing process

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