1975年7月美国老峰26号选煤厂第一台巴达克跳汰机投入生产。该机4米宽,入选13～0毫米级原煤,处理能力为370吨/时,最大可达400吨/时。1968年开始投产时处理100～0毫米的原煤,处理能力为600吨/时。原流程是用鲍姆跳汰机处理100～6毫米粒级煤。用风力摇床处理6～0粒级煤。后来6～0毫米粒级煤的水分比过去几年增高,已不 1975 July American Lao Feng 26 coal preparation plant first Patch jig into production. The machine is 4 meters wide, selected 13 ~ 0 mm grade coal, processing capacity of 370 tons / hour, up to 400 tons / hour. Started to put into operation in 1968 100 ~ 0 mm of raw coal, processing capacity of 600 tons / hour. The original process is Baum jig handling 100 ~ 6 mm grain coal. Shake 6 to 0 grains of coal with a wind shaker. Later 6 ~ 0 mm grain coal moisture higher than in previous years, no longer