1、原衬板存在的问题我选矿厂碎矿车间现用900旋回破碎机随着矿石的变化和杂质的混入使固定衬板磨损加快。局部更换后需要按水泥的保养期养护7～14d，因而影响生产。由于衬板的固定方式使局部更换较困难，且更换的衬板难以固定，因而安装质量难以保证。为此，我们提出了一种新 1, the original lining of the existing problems I beneficiation plant crushing plant is now used 900 gyratory crusher changes with the ore and impurities mixed fixed liner wear and tear accelerated. After the local replacement of the maintenance of cement by curing 7 ~ 14d, thus affecting the production. As the lining of the fixed way to make the local replacement more difficult, and the replacement liner is difficult to fix, so the quality of the installation is difficult to guarantee. To this end, we propose a new