The common faults of the oil purifier are the damage of the filter plate and the spray of material between the filter plates. The following analysis and troubleshooting are separately performed for different faults: (1) Damage of the filter plate The damage of the filter plate of the van filter is a common failure. If the filter plate is damaged a large number of the following factors should be analyzed: â‘ filter plate manufacturing quality; â‘¡ filter plate material selection and feed pump head is matching; â‘¢ diaphragm squeezing mode, should also consider the diaphragm filter The amount of oil and internal steel liner processing quality. Under normal conditions, the pressure on both sides of the filter plate is in equilibrium. When the two sides of the filter plate are in different filtering stages, that is, one side is filtered and the other side is squeezed by force, a pressure difference is formed on both sides of the filter plate to damage the filter plate. The reason: â‘ unloading process, the mud on both sides of the filter plate large difference between the amount of; â‘¡ filter filter began to filter, the feed pump stop a long way to half, the state of the filter cake in the semi-flow state under varying degrees Shen; â‘¢ filter plate feed hole blocked. (2) between the filter plate spray automatic vacuum oil filter in the filter operation, the phenomenon of spray material between the filter plate, the reason: â‘ in the filter plate border compression surface, filter cloth folded; â‘¡ filter cloth broken ; â‘¢ both sides of the beam appear to varying degrees of lateral bending (horizontal direction); â‘£ thrust plate is not compressed or hydraulic cylinder pressure is too small. The solution is to carefully clean the residual filter cake (especially the lower part) on the pressing surface of the filter plate when discharging, or to rinse the filter plate in time to ensure the cleaning of the pressing surface of the filter plate; to bundle the filter cloth to ensure its flatness .
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