INTRODUCTION TO MINING
Early. Structures and devices. Shelter, transport. Early. Energy. Heat, power. Medieval. Machinery. Industry. Modern. Electronics. Computers, communications c. Construct access roads, transport system d. Locate surface plant, construct facilities e. Excavate deposit (strip or sink shaft). 8. INTRODUCTION TO MINING.
Analysis and Research on Control Technology of Large Mining .
coal seam f = 1.5 5 use of large mining height fully mechanized mining equipment, to achieve the highest efficiency, the lowest cost of tons of The buried depth of the face is about 260 meters, the coal quality is f = 2 3, the structure is simple, similar to that .. (2), coal mining machine (Xi'an coal plant, 12 million/Taiwan).Get Price