The case of four mines in Datong City, Shanxi Province

Equipment Type: EBZ200H Time of use: March 8, 2008 - April 1, 2009 Place of use: Sitai Mine, Datong City, Shanxi Province Unit of use: Shanxi Tongmei Group roadway and its geological conditions 1, the total length of the roadway is 1600 meters. 2. The roadway is a semi-coal rock roadway, with part of the rock hardness F8-F10, and the rock joints are fully developed. Roadway support section and form Section: 3.8 meters× 2.7 meters Support: anchor rod, anchor cable footage Sany EBZ200H hard rock boring machine cuts 7-8 hours per day on average, and cuts 2-3 meters per hour; The daily *8981 footage can reach 25 meters, and the total footage has reached more than 4,000 meters since 11 months of operation. The equipment of Sany is currently running underground, and the footage is still increasing, and the work efficiency has increased by more than 50% compared with the same period last year. The operation of the equipment has been highly praised by the leaders of the group and has been commended by the group for many times.