Desulfurization, denitration and dust removal technology and device for glass furnace kiln

Abstract

The invention relates to the field of industrial waste gas treatment, in particular to a desulfurization, denitration and dust removal technology for a glass furnace kiln. The technology comprises the steps that dust in flue gas is debonded through a flue gas conditioning technology and then collected with a bag-type dust remover; the desulfurization running cost is effectively controlled by applying the innovative molecular structure chemistry and engineering technique concept through the characteristics of desulfurization achieved through catalytic oxidation of a rare earth catalyst, and then high-yield sulfuric acid is obtained; meanwhile, nitrogen oxide in the flue gas is efficiently converted into ammonium nitrate through the chemical engineering means of online controlling precise replenishment of a compound nitric acid solution, ammonium hydroxide and the like, and then ammonium nitrate is modified to prepare urea-ammonium nitrate solution fertilizer. The technology has the advantages that contaminant treatment indexes achieve total-effect tendency-to-zero discharge; by-products including aluminum sulfate and a urea-ammonium nitrate solution (novel liquid fertilizer) achieve reclamation and commercialization, and therefore part of running cost is reduced; no new contaminant is generated, and no waste residue or wastewater treatment trouble is generated.

Description

technical field [0001] The invention relates to the field of industrial waste gas treatment, in particular to a desulfurization, denitrification and dust removal process and device for a glass furnace. Background technique [0002] At present, the most widely used and most effective flue gas desulfurization and denitrification technology is lime gypsum desulfurization process and NH 3 Selective catalytic reduction NOx technology (SCR). The lime-gypsum desulfurization process is far from being able to meet the requirements of the current stage under the premise of frequent smog and ultra-low emissions from various industries. In addition, the lime-gypsum method leads to gypsum rain, difficult digestion of desulfurized gypsum, and blockage during operation. , A series of problems such as ground subsidence and ecological disasters caused by the development of lime mines, so the lime gypsum desulfurization process limits its application field and scope of use. The core of the ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies in the prior art, to provide a desulfurization, denitrification and dust removal process and device for glass furnaces, which can completely solve the problem of dust, SO 2 , NOx and other pollutants exceeding the emission standards

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