Desulfurization denitrafication dedusting integrated method and device

Abstract

The invention discloses a desulfurization denitrafication dedusting integrated method and device. The device comprises an alkaline absorption liquid storage tank, an alkali liquid pump, a gas treatment tank and an exhaust cylinder connected in sequence; and the gas treatment tank is internally provided with one or more stages of vortex absorbers. A sulfur-containing nitrate-containing dust-containing flue gas enters the gas treatment tank tangentially and generates a swirling gas flow; an alkaline absorption liquid containing an oxidant in the alkaline absorption liquid storage tank forms droplets in the vortex absorbers under pressure; the droplets capture, adsorb and oxidize sulfur, nitrate and dust in the flue gas, and a liquid phase and a gas phase are formed under the action of centrifugation; and the gas phase is evacuated, and the liquid phase is recycled after filtered. The device of the invention adopts a vortex separation-oxidation absorption purification method to treat sulfides, nitrogen oxides and solid particles in industrial exhaust gas, thereby effectively improving the separation and absorption efficiency; and the device integrates desulfurization, denitration anddedusting processes, the pressure drop is small, energy consumption is reduced, and the total occupation area and total investment of the device are effectively reduced.

Description

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AI Technical Summary

Benefits of technology

This technology uses special techniques for efficiently separating solids from gases containing harmful substances such as acidic or basic exhaust emissions by utilizing various methods like centrifugal force (vortic) separation with oxygen injection into an absorbent material that removes these pollutants before they reach their destination. By doing this process, it can improve environmental quality standards while reducing costs associated therewith.

Problems solved by technology

This patented describes various ways to improve exhaust gas cleanliness and reducing waste disposal issues associated with current solutions like wet scrubber techniques involving sulfur oxide capture and mist precipitation. These improvements involve developing efficient and economically feasible options without compromising upon other important factors including energy consumption, capital expenditure, operational safety, and environment concerns. Additionally, these advances aimed at addressing specific challengings related to each step involved during the overall process design phase.

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