Optimization model of draglines boom length and bucket capacity of draglines stripping system

Integrated operation pattern of Draglines Stripping System (DSS) is been brought forward according to the deposit occurrence of surface coalmines in China, some mining technologies are used in the upper part of the waste and the coal seams, and DSS is suitable for stripping the rock, all or part, above the roof of bottommost coal seam. After throwing blast, much more powerful dozers are used to lower the height and extend the width of stripping bench, and then draglines standing on the extended bench are used to extend the bench more widely and throw the waste directly to the dumping area. When the throwing blast shape and dozer-lowered height is certain, equipment selection schemes of long boom length/ small bucket capacity and short boom length/ big bucket capacity and its optimization model of boom length and bucket capacity are brought forward considering the factors such as draglines prices, stripping quantities and so on.