石灰石-石膏湿法烟气脱硫之液柱塔(DCFS)技术

Limestone-gypsum Wet Flue Gas Desulfurization of the Liquid Column Tower(Double Contact Flow Scrubber) Technology

液柱塔脱硫技术,通过浆液上下两次同烟气接触,大大提高了浆液的吸收能力,这在特大型机组、高含硫煤质、高脱硫效率等方面有明显优势。该技术系统简单、性能稳定、运行可靠、能耗经济、适应广泛、维护方便,多年以来在欧、美、日等发达国家市场占有率连续排名第一,在我国也逐渐为广大用户所赞赏。吸收塔是石灰石-石膏湿法脱硫工艺的核心设备,国内目前比较典型的石灰石-石膏湿法的吸收塔是喷淋塔和液柱塔,本文主要介绍了液柱塔(DCFS)技术。

It was twice up and down with the flue gas through the slurry contacts, greatly enhanced the absorptive capacity of slurry, which in large units, high - sulfur coal and high desulfurization efficiency, and had an obvious advantage. The technology was simple, stable performance, reliable operation, energy economy, adapt to a wide range, and easy to maintain. Over the years, in Europe, the United States, Japan and other developed countries, the market share of the technology continuously ranked first. In our country, it also gradually appreciated by users. Absorber was a limestone - gypsum wet FGD technology core equipment, the domestic current typical limestone - gypsum wet scrubber was a spray tower and the liquid column tower, and the liquid column tower （Double Contact Flow Scrubber） technology was mainly introduced.