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专利号:ZL200620040148.9专利权人:上海梅山钢铁股份有限公司发明(设计)人:彭福荣刘代德倪立朱来宝金明张正好杨文光本实用新型涉及一种高炉喷煤装置,特别涉及一种带有二次补气装置的高炉两段式喷煤机构。主要解决喷煤管堵塞的技术问题。本实用新型的技术方案为:高炉两段式喷煤机构,包括煤粉输送管路和吹气管路,其特征是,在吹气管路上引出二次补气管路。二次补气管路为依次间隔连接的多个手动阀,
Patents No .: ZL200620040148.9 Patentee: Shanghai Meishan Iron & Steel Co., Ltd. Inventor: Peng Furong Liu Dede Ni Li Zhu Lai Bao Jinming Zhang Zhenghao Yang Wenguang The utility model relates to a blast furnace coal injection device, in particular to a secondary Fill gas blast furnace two-stage coal injection mechanism. Mainly solve the technical problems of coal injection pipe plugging. The technical scheme of the utility model is that the blast furnace two-stage coal injection mechanism comprises a pulverized coal conveying pipeline and an air blowing pipeline, and is characterized in that the secondary air supplement pipeline is led out on the air blowing pipeline. Secondary gas pipeline for the sequential connection of multiple manual valve,