Case of Chenjiashan Coal Mine in Tongchuan City, Shaanxi Province

Equipment Type: EBZ200H Time of use: September 1, 2007 - April 1, 2009 Place of use: Chenjiashan Coal Mine, Tongchuan City, Shaanxi Province Unit of use: Tongchuan Mining Bureau, Tongchuan City, Shaanxi Province Comprehensive excavation team roadway and its geological conditions 1, the total length of the roadway is 3600 meters. 2. The roadway is an all-rock roadway, the cross-sectional shape is arched, the rock hardness is F6-F10, and the rock joints are fully developed. Roadway support section and form Section: 5.5 meters× 5.8 meters Support: anchor rod, anchor cable, hanging net steel beam, shotcrete footage cumulative footage: 2500 meters; Average footage: 130 m/month; *8981 large footage: 135 m/month. Customer evaluation: When the equipment of Sany EBZ200H hard rock roadheader arrives at our mine, its service personnel will guide the secondary assembly, and the equipment will be installed and run normally within 72 hours. The dust collector equipped with this equipment has obvious effect, which effectively reduces the dust problem during work. The equipment is also very user-friendly in operation, and the pilot handle is very light to use, which reduces the work intensity of workers, so workers also love to use Sany's equipment. Sany's service personnel have been tracking services in our mine, solving faults in a timely manner, and ensuring the normal operation of the equipment. Sany's service provides a lot of convenience for our users, which makes us very satisfied. At present, the equipment is in good condition in our mine, with an average daily footage of about 4 meters, and *8981 can reach 5 meters, which greatly improves the work efficiency.