feeding mechanism : up roller, middle flashboard and down bell jar or double bell jar feeding mechanism with hydro-automatic drive, featured as easy operation, convenient maintenance and good air-tightness 加煤機(jī)構(gòu):液壓驅(qū)動(dòng)自動(dòng)加煤裝置,采用上滾筒中插板下鐘罩機(jī)構(gòu)或雙鐘罩結(jié)構(gòu),操作簡(jiǎn)單,維修方便,氣密性好。