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Zero-emission Magnesium Hydrate Regeneration Recycle System Of Steam-electric Desulfurization Equipment

A technology of magnesium hydroxide and desulfurization equipment, applied in chemical instruments and methods, separation of dispersed particles, separation methods, etc., can solve problems such as sludge, and achieve the best environmental protection, space saving, and fast processing effects

Inactive Publication Date: 2012-07-11
平湖荣成环保科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Among them, although the above-mentioned magnesium hydroxide method has low operating costs, it still needs to use a large amount of magnesium hydroxide absorption liquid to interact with flue gas containing sulfur oxides, resulting in a large amount of sludge

Method used

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  • Zero-emission Magnesium Hydrate Regeneration Recycle System Of Steam-electric Desulfurization Equipment
  • Zero-emission Magnesium Hydrate Regeneration Recycle System Of Steam-electric Desulfurization Equipment

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Embodiment Construction

[0011] The detailed description and technical content of the present invention are described below with the drawings, but the attached drawings are only for reference and description, and are not used to limit the present invention.

[0012] Please refer to figure 1 , figure 1 It is a schematic diagram of the zero-emission and magnesium hydroxide regeneration and recovery system of the steam-electric desulfurization equipment of the present invention. First, unload the magnesium oxide powder stored in the magnesium oxide storage tank 10 into the magnesium oxide pyrolysis tanks 11a, 11b, add water and stir, and add a small amount of hot water or steam during the stirring process to make the magnesium oxide heat It is decomposed into magnesium hydroxide milk slurry, and then pumped to the magnesium hydroxide storage tank 12 by a delivery pump, and the above-mentioned magnesium oxide pyrolysis tanks 11a and 11b can be switched for use. The magnesium hydroxide milk slurry stored...

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Abstract

The present invention relates to a zero-emission magnesium hydrate regeneration recycle systme of steam-electric desulfurization equipment, which comprises the following components: an absorption tower which uses magnesium hydrate mud for contacting with exhaust gas of sulfur-containing oxide wherein for generating waste water that comprises the magnesium sulfate; a bottom ash mixing tank which receives calcium chloride solution and the waste water that comprises the magnesium sulfate for reaction wherein and generates magnesium chloride solution and calcium sulphate solution; a first separation tank which separates the magnesium chloride solution and the calcium sulphate solution; a reaction tank which receives the magnesium chloride solution and the magnesium hydrate mud for causing reaction wherein and generating calcium chloride solution and magnesium hydrate solution; a second separation tank which separates the calcium chloride solution and the magnesium hydrate solution; and a magnesium hydrate buffer tank which receives the magnesium hydrate solution and conveys back to the absorption tower.

Description

technical field [0001] The present invention is related to waste gas desulfurization treatment, in particular to a kind of waste gas desulfurization treatment using magnesium hydroxide solution. Background technique [0002] Electricity demand has always been the most important resource for domestic industries, especially large enterprises such as petrochemical industry and paper industry, most of which have set up steam-electricity co-generation plants, which can not only provide electricity, but also use the steam after power generation as a heat source. In order to save fuel costs, most domestic cogeneration plants currently use coal-fired boilers. Boilers will produce air pollutants such as sulfur oxides and nitrogen oxides; the emission of sulfur oxides mainly comes from the sulfur content in pulverized coal, which is produced through the combustion process. Using flue gas desulfurization technology, the sulfur removal efficiency can reach 90%, or even above 95. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/96B01D53/50
Inventor 林文卿张惠凯
Owner 平湖荣成环保科技有限公司
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