Coking desulfurization waste liquid treatment equipment
A technology for coking desulfurization waste liquid and treatment equipment, which is applied in water/sewage treatment equipment, gaseous discharge wastewater treatment, water/sewage treatment, etc., and can solve the problems of low purity of ammonium sulfate and ammonium thiocyanate products.
Pending Publication Date: 2018-08-14
LAIWU IRON & STEEL GRP
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Problems solved by technology
But the purity of ammonium sulfate and ammonium thiocyanate product that above-mentioned technique obtains is lower
Method used
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[0026] The core of this specific embodiment is to provide a coking desulfurization waste liquid treatment device, which can improve the purity of ammonium sulfate and ammonium thiocyanate, and solve the current problems in this field.
[0027] Hereinafter, an embodiment will be described with reference to the drawings. In addition, the examples shown below do not limit the content of the invention described in the claims in any way. In addition, all the contents of the configurations shown in the following embodiments are not limited to be essential to the solutions of the invention described in the claims.
[0028] For the coking desulfurization waste liquid treatment equipment provided in this specific embodiment, please refer to figure 1 Mainly includes: oxidation kettle 1, evaporation kettle 7, ammonium thiocyanate mother liquid tank 12, crystallization tank 15, collection tank 17; among them, oxidation tank 1 is used to oxidize coking desulfurization waste liquid, and is...
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The invention discloses coking desulfurization waste liquid treatment equipment. The coking desulfurization waste liquid treatment equipment mainly comprises an oxidization kettle, an evaporation kettle, an ammonium thiocyanate mother solution box, a crystallization box and a collection box, wherein the oxidization kettle is provided with a waste liquid inlet and an oxygen inlet; the evaporation kettle is communicated with the oxidization kettle through a first input pipe; the evaporation kettle is provided with a first outlet and a safety valve; the ammonium thiocyanate mother solution box iscommunicated with the evaporation kettle through a second input pipe; the crystallization box is communicated with the evaporation kettle and is provided with a second outlet. When the coking desulfurization waste liquid treatment equipment is used, coking desulfurization waste liquid to be treated is input into the oxidization kettle from the waste liquid inlet and then is oxidized; then the coking desulfurization waste liquid enters the evaporation kettle through the first input pipe; an ammonium thiocyanate mother solution in the ammonium thiocyanate mother solution box is driven by a second water pump to enter the evaporation kettle and is mixed with the coking desulfurization waste liquid oxidized in the evaporation kettle, and a mixture is evaporated and is crystallized in the crystallization box to obtain ammonium sulfate and ammonium thiocyanate. Compared with a traditional technology, the purity of ammonium sulfate and ammonium thiocyanate, which are prepared by the technology, is relatively high and the economical efficiency is good.
Description
technical field [0001] The invention relates to the field of desulfurization waste liquid treatment, and more specifically relates to coking desulfurization waste liquid treatment equipment. Background technique [0002] With the development of industry and the improvement of people's living standards, the demand for energy is also increasing, and SO in coal-fired flue gas 2 Has become the main element of air pollution, reducing SO 2 Pollution is the top priority of today's atmospheric environment governance; currently there are three main desulfurization methods: pre-combustion, during-combustion and post-combustion. [0003] As far as the existing technology is concerned, the treatment process of domestic coking desulfurization waste liquid is as follows: a separate oxidation kettle is used to heat up and oxidize the coking desulfurization waste liquid to obtain ammonium sulfate and by-products. But the purity of the ammonium sulfate and ammonium thiocyanate product that...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C02F9/10C01C3/20C01C1/24C02F103/18
CPCC01C1/24C01C3/20C02F1/04C02F1/727C02F2201/007C02F2103/18C01P2006/80
Inventor 石荣翔
Owner LAIWU IRON & STEEL GRP