筒磨机是一种重要粉碎设备。过去筒内的衬板、隔板、两端护板均采用锰钢铸件,工作时噪音很大,影响工人身体健康。为了改善这种作业环境,鞍钢耐火材料厂于1977年7月中旬在镁砖车间的筒磨机上采用橡胶衬板作试验,取得了显著效果:噪音声压级由原锰钢衬板的102分贝降至92分贝,使用寿命比锰钢衬板寿命至少提高8倍,成本降低70％左右,大大减轻了检修工人的劳动强度,减少了带入制品中的铁质,有利于提高产品质量。最近鞍钢生产指挥部组织了技术鉴定会,认为使用橡胶板代替锰钢村板,不仅是 Barrel mill is an important crushing equipment. In the past, liner, separator and end guard in the cylinder were made of manganese steel castings, which caused a lot of noise when working and affected the health of workers. In order to improve this kind of working environment, Anshan Iron and Steel Refractories Factory in mid-July 1977 in the magnesia brick mill on the use of rubber lining for testing, and achieved remarkable results: the noise sound pressure level from the original manganese steel liner of 102 decibels Down to 92 decibels, the service life is at least 8 times longer than the life of manganese steel liner, the cost is reduced by about 70%, greatly reducing the labor intensity of overhaul workers and reducing the iron content brought into products, which is beneficial to improve product quality. Recently Anshan Iron and Steel Production Headquarters organized a technical appraisal meeting, that the use of rubber instead of manganese steel plate, not only