包钢4号高炉煤粉喷吹系统的改造

Technical reform of PCI system at Baotou Steel's No.4 BF

包钢4号高炉(2200m^3)原喷煤系统空气消耗量大,喷吹浓度低,进行改造后,喷吹形式由串罐改为并罐,新型给煤器及分配器也得到了应用。改造后的喷煤系统具有喷吹能力大、耗气量少、输送浓度高等特点。

The old pulverized coal injection system of Baotou Steel's No. 4 BF has such disadvantages as much air consumption, low injection density,etc. .After reform, the serial arrangement of injection tanks was replaced by parallel arrangement , a new coal feeder and distributor were also adopted .The new system has following advantages :high injection capability,low air consumption and high conveying density.