Analysis and measurements of the vibration on AM50 horizontal axis roadheader of electric-control-box was carried out, and the vibration characteristics were ob
Based on the UCG(underground coal gasification) theory, the “three zones” which are oxidization zone,reduction zone, and drying zone, were divided; physical a
At present, coal is mainly consumed as fuel. In fact, coal is also a kind of precious raw material in chemical industry on the premise that some harmful mineral