我区砂金资源广、含金富、金粒粗、易选别。过去土法生产,主要是采用各种溜槽,劳动强度大,回收率低;加之地质资源不清等,远不能适应黄金生产发展的要求。1976年我们用跳汰机、摇床等组成一种活动小选厂(100吨/日),在区内推广,凡是按此流程建成投产的单位,均收到了很好的效果。现将活动小选厂简介如下: My area is rich in gold resources, gold-rich, coarse gold, easy to choose. In the past indigenous production, mainly using a variety of chutes, labor-intensive, low recovery rate; combined with unclear geological resources, far can not meet the requirements of the development of gold production. In 1976, we formed a small activity plant (100 tons / day) with jiggers and shakers, etc., and promoted them in the area. Those who completed and put into production according to this procedure all received very good results. Now the activities of small plant briefings are as follows: