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Permanent derrick for auxiliary shaft installed at Shaozhai Mine


Xianyang, September 4 - The second group of hoisting sheave for the auxiliary shaft at Shaozhai Mine, Shandong Energy Zibo Mining Group, was installed in place, which marks the complete installation of permanent derrick, upon which the hoist system of the mine will be built upon.

The auxiliary derrick takes a single inclined brace structure. It is 44 meters in height, composed by the inclined frame and the riser which weights 226 tons and 128 tons respectively. With the cooperation of two 500-ton cranes and two 300-ton cranes, the auxiliary shaft derrick, hoisting sheave and rope hanging tank was put in place in 4 days.