西德威斯特法尼亚煤矿公司海因里希·罗伯特煤矿选煤厂不久前安装使用了一台双滚筒过滤机。这种过滤机为洪堡尔特·维达格公司的新产品。其结构原理是:两个滚筒并联安装,反向旋转,滚筒间隙甚小,滚筒表面几乎接触,滚筒两端的侧板与滚筒壁密封,以代替原来的过滤槽接收滤液。过滤机从上部入料,不需要搅拌器。入料之粗颗粒首先沉淀并被吸附。这一特 Westphalian coal mining company Heinrich Robert Coal Preparation Plant recently installed a dual-roller filter. This filter is a new product from the company of Humboldt-Vidalig. The structure principle is: two rollers installed in parallel, reverse rotation, the drum gap is very small, almost touching the surface of the drum, the drum at both ends of the drum wall and seal the wall to replace the original filter tank to receive the filtrate. Filter from the upper feed, no mixer. Raw coarse particles are precipitated and adsorbed. This special