论文部分内容阅读
1975年7月,美国的第一台巴塔克末煤跳汰机安装在依利诺斯州 old Ben 第26~# 矿井的选煤厂里。该厂于68年投产,当时的处理能力为600吨/小时。其工艺流程为:6～100毫米的块煤用几台鲍姆跳汰机分选,0～6毫米的末煤用风力摇床来选别。由于原煤中水分较高,致使风力摇床的效率很低。当用巴塔克跳汰机(处理能力为400吨/小时,入料粒度为0～12毫米)代替风力摇床时,该选煤厂的处理能力达到800吨/小时。采用这种跳汰机是由于以下几个原因:选煤厂生产场地的限制;分选比重必须在1.6～2.0的范围内灵活调整;在分选精度要求不太高的情况下,采用具有磁性介质系统的重
In July 1975, the first Batak coal jig in the United States was installed at the coal preparation plant at Pit 26 to Old Ben, Illinois. The plant was put into operation in 68 years, when the handling capacity of 600 tons / hour. The process is: 6 ~ 100 mm of lump coal with several Baum jig sorting, 0 ~ 6 mm of the end of coal with a wind shaker to sort. Due to the high moisture in the raw coal, the efficiency of the wind shaker is very low. The capacity of the coal preparation plant reached 800 t / h when a Batak jig (with a processing capacity of 400 t / h and a feed grain size of 0 to 12 mm) was used instead of the wind shaker. The use of this jig is due to the following reasons: the coal preparation plant production site restrictions; sorting proportion must be flexibly adjusted within the range of 1.6 to 2.0; in the case of sorting accuracy is not too high, the use of magnetic The weight of the media system