一目前,国外煤炭、矿石进口码头,大部分使用大型抓斗卸船,然后由皮带机送进料场,斗轮机堆、取。在美国、日本和西欧,抓斗桥式卸船机的起重量一般为30、40、50吨三种,平均台时效率为800——1500吨/时,日本石川岛播磨公司和荷兰STORK公司设计的81吨和85吨抓斗桥式卸船机,声称设计生产率分别为2500吨/时和4500吨/时,实际上很难达 At present, foreign coal, ore import terminals, most of the large grab unloader, and then by the belt conveyor into the yard, Bucket bucket heap, take. In the United States, Japan and Western Europe, grab the weight of the bridge ship unloader is generally 30,40,50 tons of three kinds, the average station efficiency of 800--1500 tons / hour, Japan Ishikawajima Broadcasting Company and the Netherlands STORK company Designed 81-tonne and 85-tonne grab bridge ship unloader, claiming that the design productivity was 2,500 t / h and 4,500 t / h, respectively,