The pressure filtration process is divided into feed filtration and compaction filtration.Clean coal technology.The study of diaphragm filter mainly focuses on the drainage mode and discharge speed and flow blowing cake.The discharge speed is even beyond downstream.
However, the decisive links affecting the power of the diaphragm filter and the membrane filter capacity are during feed filtration, especially for materials difficult to filter, such as high clay mud, urban sludge, etc., the feeding time usually accounts for 60% of the total filtration cycle.Therefore, the key to improving the filter capacity is how to optimize the feed.Ability vision.
In a coal preparation plant, the filter is the latter device used to treat muddy water.Ensure that the mucus is fully recovered.The membrane filter for handling flotation clean coal and sludge has blocking extrusion and strong pressure flow and other functions.
Due to the low water content of the filter cake, the filter machine can complete the automatic intermittent operation, and has been widely used in anti-seepage film, light industry and chemical mines.Most pump and feed materials are selected from a single pump, that is, pumps with high flow and high lift depending on the flow and flow of the feed pump required for the filter.Simple structure, convenient construction, convenient investment.
Together with the single pump method, there is a disadvantage that at the initial stage of the feed, large medium resistance will occur and becomes greater as the feed proceeds, and the corresponding pump pressure of the pump becomes greater.As a result, the filter cake layer formed on the external surface of the filter cloth was destroyed, and the filtered coal slurry was increased to form the filter liquid water turbidity.
