SCR processing system

Abstract

The invention provides a SCR processing system. The SCR processing system comprises a first desulfurizer, a first precipitator, a second precipitator, and a second desulfurizer, and the first desulfurizer, the first precipitator, the second precipitator and the second desulfurizer are communicated in order. The second desulfurizer can also be in communication with a preset SCR denitration device to facilitate denitration of the flue gas. The SCR denitration device includes a catalyst injector for injecting a powdered catalyst into a flue gas flowing channel. The powdered catalyst can be a catalyst for catalyzing a selective catalytic reduction reaction SCR for denitration. A deceleration plate having a porous structure is also disposed at the channel, and the deceleration plate is used toprolong the stay time of the powdered catalyst and increase the catalytic efficiency. The SCR processing system can better achieve the purpose of desulfurization, dust removal and denitration based onmultiple continuous processes.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to an SCR treatment system. Background technique [0002] As my country's main primary energy source, coal occupies a large proportion of energy consumption in power plants, boilers and coking industries. Especially this year, with the development of my country's economy, the increase in energy demand has greatly increased the consumption of coal. consume. When coal is burned, sulfides and nitrates will be produced. If these waste gases are discharged directly, the pollution to the air is extremely serious. [0003] In the conventional process, desulfurization, denitrification and dust removal are completed in their own devices as independent unit operations. This independent exhaust gas treatment process is costly, wastes space, and the process is complicated. Therefore, it is necessary to develop an SCR treatment system. , so as to achieve the three purposes of desulfuriza...

AI Technical Summary

Problems solved by technology

[0003] In the conventional process, desulfurization, denitrification and dust removal are completed in their own devices as independent unit operations. This independent exhaust gas treatment process is costly, wastes space, and the process is complicated. Therefore, it is necessary to develop an SCR treatment system. , so as to achieve the three purposes of desulfurization, denitrification and dust removal

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