Desulphurization and dust removal integrating flue gas purification device and method

A flue gas purification, desulfurization and dust removal technology, applied in the field of flue gas purification, can solve the problems of high cost, large area occupied by flue gas desulfurization and dust removal, etc.
CN104984633AInactive Publication Date: 2015-10-21BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
Publication Date
2015-10-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a desulphurization and dust removal integrating flue gas purification device and a desulphurization and dust removal integrating flue gas purification method. The device comprises an absorption tower, wherein a wet desulphurization system and a water-washing deep dedusting system are sequentially arranged in the flue gas flowing direction in the absorption tower. The glue gas enters the absorption tower; after being desulphurized by the wet desulphurization system, the flue gas enters the water-washing deep dedusting system to be deeply cleaned and washed, so that dust concentration in the flue gas and the concentration of dissolving salt in outlet fog drops are reduced, and SO2 and SO3 are also removed to certain degree; finally, the flue gas enters a chimney, cleaning emission is realized, desulphurization and dust removal are integrated, and the flue gas is exhausted without causing pollution.
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Description

Technical field

[0001] The invention relates to the technical field of flue gas purification, in particular to an integrated flue gas purification device and method for desulfurization and dust removal. Background technique

[0002] The conventional wet desulfurization system uses slurry to cyclically scrub the flue gas. While desulfurizing, it has a certain dust removal effect, which is mainly achieved by spray washing and demister. In practical applications, the dust removal function is very unstable and the efficiency is not high, causing the system outlet dust concentration to exceed the standard. In addition, due to increasingly stringent dust emission requirements, the desulfurization outlet dust is often difficult to meet the standard, and additional equipment is required. At present, in order to make the dust in the final exhaust gas meet the standard, for example, reducing the dust concentration at the inlet of the desulfurization absorption tower, adding a wet electrost...

Claims

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