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石家庄钢铁厂150m~3高炉煤气干式布袋除尘工程已顺利通过省级验收鉴定,至此,这个厂的高炉煤气全部实现了干式除尘。高炉煤气由湿法除尘发展到干式布袋除尘,这是炼铁工艺流程上的一大改革。布袋除尘较之传统的湿法除尘有显著的优点。①煤气含尘量由过去的14mg/m~3以上降到7mg/m~3以下,除尘效率达99.93％;②净化煤气温度由过去的30～40℃升高到100～130℃,从而提高了煤气发热值及热风温度,为降低炼铁焦比创造了条件;③两个炉子一年
Shijiazhuang Iron and Steel Plant 150m ~ 3 blast furnace gas dry bag dust removal project has passed the provincial acceptance inspection, so far, the blast furnace gas plant to achieve all of the dry dust. Development of blast furnace gas from wet dedusting to dry bag dedusting is a major reform in the process of iron making. Bag dust removal than the traditional wet dust removal has significant advantages. ① The gas dust content has dropped from above 14mg / m ~ 3 to below 7mg / m ~ 3 and the dust removal efficiency has reached 99.93%. ② The temperature of the purifying gas increased from 30 ~ 40 ℃ to 100 ~ 130 ℃ in the past, The gas calorific value and hot air temperature, to reduce the iron-making coke create the conditions; ③ two furnaces a year