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Chemical process wet-method desulphurization technology

A wet desulfurization and chemical separation technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of high cost and large consumption of desulfurizers, and achieve the effect of improving utilization rate

Inactive Publication Date: 2016-08-03
河北衡兴环保设备工程有限公司
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Problems solved by technology

[0034] In order to solve the problems of large desulfurization agent consumption and high cost in the existing flue gas desulfurization technology, the present invention uses alkaline waste residue as desulfurization agent for desulfurization

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Embodiment Construction

[0094] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0095] For better illustrating the present invention, facilitate understanding technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows:

[0096] Such as figure 1 Shown, a kind of subchemical process wet desulfurization process, described process comprises absorption tower 1, and described absorption tower 1 is divided into circulation area 2, absorption area 3 and defogging area 4 from bottom to top, and described process comprises the following step:

[0097] 1) After grinding the alkaline waste residue, 90% of the solid particles pass through a 200-250 mesh sieve, prepare a slurry with water as a desulfurizer, transport it to the absorption tower circulation area 2, and reach the spray layer nozzle of the absorption area 3 through a ci...

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Abstract

The invention relates to a chemical process wet-method desulphurization technology. The technology employs alkaline waste residues as a desulfurizer for sulfur-containing flue gas, a desulphurization slurry is oxidized and regenerated outside an absorbing tower, and a dense slag slurry at the bottom of the absorbing tower is timely moved, so that fouling phenomenon is not generated in the absorbing tower. During a whole desulphurization process, only alkaline waste residues are consumed, industrial waste residue stacking and pollution problems can be solved, and a target of waste control by waste can be realized.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization, in particular to a chemical process wet desulfurization process that can be applied to industrial sites and effectively reduce investment and operation costs. Background technique [0002] At present, the national conditions of using coal as the main primary energy determine that my country's coal-fired thermal power generation occupies a dominant position in the power industry, and the resulting coal-burning pollution has always been the focus of my country's environmental pollution. Among them, the control of sulfur oxide emissions is an important part of coal-fired pollution control, and wet flue gas desulfurization has been widely used in coal-fired thermal power plants due to its mature technology and high desulfurization efficiency. At the same time, a large amount of alkaline solid industrial waste is piled up and discharged, polluting the surrounding environment. If it ca...

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Application Information

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IPC IPC(8): B01D53/80B01D53/50B01D53/96B01D53/73
Inventor 郭全国李学军马宁宁
Owner 河北衡兴环保设备工程有限公司
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