Flue gas desulfurization and denitration device

Abstract

The invention relates to the field of environmental protection technical equipment and discloses a flue gas desulfurization and denitration device. The flue gas desulfurization and denitration deviceat least comprises a first reaction bed filled with a desulfurization material, a second reaction bed filled with a denitration material and a vacant third reaction bed, wherein the first reaction bed, the second reaction bed and the vacant third reaction bed are sequentially arranged at intervals along a flue gas flow channel in an initial state. When the desulfurization material in the first reaction bed reacts with flue gas to reach a saturated state, the first reaction bed can form a vacant state, the third reaction bed can be configured to be filled with the denitration material, and thesecond reaction bed can be configured to be filled with the desulfurization material; and when the desulfurization material in the second reaction bed continuously reacts with the flue gas to reach asaturated state, the first reaction bed can be configured to be filled with the desulfurization material, and the second reaction bed at least can form a saturated state. The flue gas desulfurizationand denitration device disclosed by the invention can realize efficient desulfurization and denitration of the flue gas and is more economical for the treatment of the flue gas.

Description

technical field [0001] The invention relates to the field of environmental protection technical equipment, in particular to a flue gas desulfurization and denitrification device. Background technique [0002] At present, my country's domestic flue gas desulfurization and denitrification technology is still dominated by the traditional limestone / gypsum desulfurization combined with selective catalytic reduction (SCR) denitrification. Since this method uses two technologies, it needs to be equipped with two sets of equipment, and it needs to be equipped with The additional dust removal device leads to a large floor area, high investment and operating costs, and the problem of secondary pollution such as waste water and slag will be generated after the flue gas purification treatment. [0003] At present, my country mainly adopts medium and small boilers to meet the heating needs of users. For the construction of such medium and small boiler systems, not only environmental prote...

AI Technical Summary

Problems solved by technology

In view of the problems existing in the above-mentioned flue gas desulfurization and denitrification technology, it is obvious that the economical efficiency of the treatment of flue gas produced by medium and small boilers cannot be satisfied.

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