A BWE and Shiftable Conveyor System at Work in Washington

The American Institute of Mining, Metallurgical, and Petroleum Engineers

Weldon B. Smith

Organization:: The American Institute of Mining, Metallurgical, and Petroleum Engineers
Pages:: 3
File Size:: 387 KB
Publication Date:: Jan 7, 1979

Abstract

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When faced with excavating vast amounts of overburden at its surface coal mining operation in Centralia, Wash., the Washington Irrigation and Development Co. (Widco) chose to utilize a bucket wheel excavator and shiftable conveyor system. In the early 1970s, Widco-a subsidiary of the Washington Water Power Co.-held reserves of sub-bituminous C coal estimated at some 180 million tons (200 million st). Subsequent investigation of the overlying land formations revealed the need to excavate millions of bank cubic yards of material as part of the mining plans.

Citation

APA: Weldon B. Smith (1979) A BWE and Shiftable Conveyor System at Work in Washington

MLA: Weldon B. Smith A BWE and Shiftable Conveyor System at Work in Washington. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1979.

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