1979年中以来,鲁尔矿区某矿即使用一台带式真空过滤机进行精煤脱水。受联邦资助的这种机械脱水方法因具有特殊作用,故对其进行了深入的工艺试验。下文将就试验结果进行了讨论。原料待过滤原料为浮选精煤,其粒度—灰分组成实例详见表1。 Since mid-1979, a belt vacuum filter was used to decontaminate clean coal at a mine in the Ruhr mining area. This type of mechanical dewatering, which is federally funded, has been subjected to extensive process tests due to its special effect. The following will discuss the test results. Raw materials to be filtered raw flotation coal, the particle size - ash into an example as shown in Table 1.