The article is devoted to research work, in which an attempt was made to apply the Blaine-meter for direct assessment of filterability of different materials. In the theoretical part of the article the main laws linking the Blaine index of the powder material and the average specific cake resistance are described. A number of experiments with materials taken from actual operating plants were carried out. To determine the Blaine-index the laboratory Blaine-meter was used, and to determine the average specific cake resistance standard tests of filterability on the batch pressure filter were carried out. As a result of processing experimental data and the necessary calculations direct relations between the Blaine-index and average specific cake resistance were obtained.
One of the basic technological processes, which defines the affectivity of hydrometallurgical schemes of the non-ferrous metallurgical plants, chemical plants and concentrate-production plants is the filtration process of technological pulps and waste solutions. One of the most priority tasks today is the productivity improvement of filters. During the solving this problem the main attention will be pay for the intensification of filtration process. For example we need to direct the separation process with maximum speed and, also, to receive the satisfactory quality of product.
