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通过研究炉尘对高炉炉顶煤气中HCl脱除过程的影响发现:高炉煤气中布袋灰含量在小于5 mg/m3的范围升高时,高炉炉顶煤气的脱氯效果得到改善;粒度在小于38μm范围内,粒径增加可以小幅改善脱氯效果,但粒度过大时脱氯效果迅速变差。高炉炉顶煤气中HCl气体脱除工艺适宜的实施地点应该选择在布袋除尘器后,布袋灰经过一定的提纯处理后可作为高炉炉顶煤气脱氯剂的活性添加剂。高炉煤气中的重力灰却会恶化高炉炉顶煤气的脱氯效果。
By studying the effect of dust on the HCl removal process in blast furnace top gas, it was found that the dechlorination efficiency of the blast furnace top gas was improved when the bagging ash content in blast furnace gas increased below 5 mg / m3. When the particle size was less than 38μm range, the particle size can slightly improve the dechlorination effect, but when the particle size is too large dechlorination effect rapidly worsened. Blast furnace top gas in the HCl gas removal process suitable for the implementation of the site should be selected in the bag filter, the bag of gray after a certain purification can be used as the blast furnace top gas dechlorination agent activity additives. Gravity ash in blast furnace gas will deteriorate the dechlorination effect of blast furnace top gas.