IS THE DOUBLE DRUM HOIST STILL VIABLE AT DEPTH?

CIM Montreal 2003
Abstract AGNICO-EAGLE started sinking the Penna Shaft in 1995 with a hoisting plant capable of hoisting 1,800 tonnes per day from a 2 240metre deep shaft. Exploration success at depth lead to the replacement of the double drum hoist by another double drum hoist capable of hoisting 7 000 tonnes per day. The use of a double drum hoist, instead of a Blair Multi-Rope hoist, to hoist 24,5- tonne skips was only made possible by lowering the safety factor.

This paper describes the experiences to date and looks at the possibility of extending the double drum hoist to a depth of three kilometres.

Keywords: Hoisting
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