第三届全国选煤学术讨论会于1981年11月在徐州市中国矿业学院召开。会议由中国煤炭学会选煤专业委员会主持。参加会议的除了学术论文的作者外,还有中国煤炭学会、部生产司、部科技局、大专院校、科研设计、生产管理等单位的代表以及部外其他单位的代表共计187人。第一届选煤学术讨论会是1979年10月在唐山召开,大会收到学术论文60篇;第 The Third National Coal Preparation Symposium was held in November 1981 in Xuzhou, China Mining Institute. The meeting was presided over by the China Coal Association Coal Preparation Professional Committee. In addition to the authors of the dissertations, there were 187 representatives from representatives of units such as China Coal Society, Department of Production, Department of Science and Technology, universities, research institutes, production management and other units outside the department. The first coal preparation symposium held in Tangshan in October 1979, the conference received 60 academic papers; the first