在氧化铝生产中,分解后的氢氧化铝浆液的分离洗涤设备,目前,国内外最常见的有:转鼓真空过滤机、立式圆盘过滤机、折带式过滤机和水平圆盘过滤机。因此,在新厂设计、老厂改造、扩建中,合理地选择氢氧化铝过滤机具有重要意义。设备选择时应着重考虑如下几项因素,即:设备的投资费用、洗涤效果、过滤产能和产品粒级以及动力消耗等。而其中最重要的是过滤产品的粒级大小。就目前而论,产品有砂状、粉状和晶种这三种不同的粒 In alumina production, the separation of aluminum hydroxide slurry separation and washing equipment, at present, the most common at home and abroad are: drum vacuum filter, vertical disc filter, folding filter and horizontal disc filter machine. Therefore, in the new plant design, the old factory transformation, expansion, the rational choice of aluminum hydroxide filter is of great significance. Equipment selection should focus on the following factors, namely: equipment investment costs, washing effect, filtration capacity and product size and power consumption. The most important of these is the particle size of the filter product. For the time being, the product has three different grains of sand, powder and seed