Bucket excavator for Mongolian mine

摘要

Open pit mining and underground solutions provider, Tenova TAKRAF, has completed the supply and installation of a complete Bucket Wheel Excavator (BWE| system for Zhahanaoer Open Pit Mine in Inner Mongolia, China. The system, which features the largest Bucket Wheel Excavator - Conveyor - Spreader combination of its kind in Asia, was inaugurated with a celebration held on site in late November 2014, attended by representatives of the client, CPI Mongdong Energy Group. The inauguration followed successful performance testing, which confirmed the high efficiency and reliability of the entire system and exceeded the expectations of all parties. The system consists of a large-scale Bucket Wheel Excavator SRs 2000 (rated capacity 6,600m3/hr) with loading unit, a 7,750m long conveyor system consisting of five flights as well as a compact spreader with tripper car on rails. The Bucket Wheel Excavator reaches 30m digging height, and although it has a service weight of about 3,300 tonnes, it has a ground pressure much lower than that of a D11 Dozer. In order to properly handle peak capacities the conveyor system as well as the spreader have a design capacity of 7,900m~3/hr. Those conveyors running along the excavator bench and along the waste dump are shiftable.