会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 114. 发明专利
    • RECOVERY OF COAL FINES FROM PREHEATER
    • CA1061738A
    • 1979-09-04
    • CA246003
    • 1976-02-18
    • INLAND STEEL CO
    • AKTAY ALI IHOLOWATY MICHAEL O
    • C10B57/06C10B57/08C10B17/00C10B31/00
    • Coal particles are heated and further particulized at a preheat stage employing a preheat gas. Some of the finer coal particles are puffed up by the preheating step. Most of the preheated coal particles are separated from the preheat gas, but some of the finer coal particles remain with the preheat gas. The coal particles separated from the preheat gas are oiled and eventually transported by a carrier gas through a pipeline into a coke oven. The preheat gas and the finer coal particles remaining therewith are separated from each other utilizing a wet scrubber at which the finer coal particles undergo flocculation. Oil vapor vented from the coal particles headed for the coke oven is directed to the wet scrubber to aid in the flocculating step. The flocculated coal particles are separated from the scrubber liquid in a flotation cell. The overflow from the flotation cell is filtered, and the filter cake comprising coal particles is employed as a fuel. At least some of the underflow from the flotation cell is recycled as scrubber liquid to the wet scrubber. The liquid from the filtering step is employed to precipitate, in a charging main, fine coal particles discharged with carrier gas into the charging main during charging of the coke oven.