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摘要
本設(shè)計(jì)針對燃煤廢氣的性質(zhì)，采用電除塵，選用由濕式石灰石/石膏法改良優(yōu)化后的雙循環(huán)濕式石灰石FGD工藝（DLWS）來脫硫。電除塵技術(shù)比較成熟，具有除塵效率高，運(yùn)行穩(wěn)定，維護(hù)量小。濕式石灰石/石膏法改良優(yōu)化后的雙循環(huán)濕式石灰石FGD工藝：石灰石的利用率大97％以上，運(yùn)行可靠，沒有備用吸收塔，可以多臺鍋爐使用一個(gè)吸收塔；脫硫率達(dá)90％以上，高的可達(dá)95％；凈化后煙氣經(jīng)冷卻塔排出而不進(jìn)煙囪。是比較好的一種脫硫技術(shù)，適合中大型電廠。
關(guān)鍵詞：二氧化硫 燃煤廢氣 電除塵 濕式石灰石/石膏法改良優(yōu)化后的雙循環(huán)濕式石灰石FGD工藝（DLWS）
Abstract
The design for the nature of coal-fired emissions, using ESP, selected by the wet limestone / gypsum improved optimization of the two-cycle wet limestone FGD technology (DLWS) to desulfurization. ESP technology more mature, dust with high efficiency, stable operation, maintain a small amount. Wet limestone / gypsum improved optimization of the two-cycle wet limestone FGD technology: the utilization of the limestone over 97%, reliable operation, no backup absorber, you can use a boiler absorber; desulfurization rate of more than 90 percent, high Of up to 95%; purified gas from the cooling tower instead of into the chimney. Is a relatively good desulfurization technology for medium and large power plant.
Key words: sulphur dioxide ，emissions, ESP ，coal dust wet limestone / gypsum improved optimization of the two-cycle wet limestone FGD technology (DLWS)