北京科技大学承担研制的“七五”国家重点科技攻关项目:“湿式球磨机橡胶衬板的研究”课题,于1990年底通过部级技术鉴定。工业试验和生产实践证明:在保持高锰钢衬板球磨机的磨矿效率、生产能力和磨矿产品细度相同的条件下,橡胶衬板使用寿命比高锰钢衬板提高2倍以上,并且获得降低磨矿电耗1kw·h/t,降低磨机噪声15dB(A), Beijing University of Science and Technology undertakes the “Seventh Five-Year” national key scientific and technological project: “wet ball mill rubber liner” project, at the end of 1990 through ministerial technical appraisal. Industrial trials and production practices have proved that the service life of rubber linings is more than twice that of high manganese steel linings while maintaining the same grinding efficiency, production capacity and grinding product fineness of high manganese steel liner ball mill, and Obtained to reduce grinding power consumption 1kw · h / t, reduce mill noise 15dB (A),