Study and application of new hoisting equipment to large diameter ultra deep mine shaft sinking

In order to meet the requirements of a rapid and safety construction of a large diameter and ultra deep mine shaft with the max depth of 1 600 m and a diam eter of8 ~ 12 m,a new mine headframe with a high of 29 m,a span of 18.85 m and a head sheave platform of9.5m x 9. 5 m was developed. Meanwhile,an ultra deep min. e shaft sinking hoist with the max static tension of 410 N,6,7,8 m3 hook type bucket,4 m3 bottom charge type bucket and the related 13,15,18,21 and 25 t hook device,03. 5 and 4. 0 m separation type head sheaves and other new equipments were researched and developed. Industrial tests were conducted in main shaft of Yingpanhao Mine of Yanzhou Mining Group,a mine central ventilation shaft in Huainan Guqiao and other several mine shaft construction projects. The results showed that the new type equip ment for the large diameter ultra deep mine shaft construction researched and developed could realize safety and rapid construction of the mine shaft and especially excell ent effect on a month sinking rate of 196 m in the surface overburden of the mine shaft was obtained from the central mine ventilation shaft in Huainan Guqiao Mine.