Hydraulic oil filter is generally used in hydraulic station, hydraulic/lubrication system, to do regular cleaning, hydraulic oil filter after a period of time, has been blocked by the hydraulic oil inside the stains, in order to ensure that the filter filter smooth, Feyat environmental protection summed up the following pipe hydraulic oil filter cleaning method:
1. The material of the hydraulic oil filter element is metal mesh or copper mesh. It can be soaked in kerosene for a period of time, and then washed and blown by electric wind, so that the blocked stains can be cleaned up. If the material of the hydraulic oil filter is glass fiber or filter paper, it can not be cleaned, and cleaning will not work. In this case, it is necessary to replace the new hydraulic oil filter.
2. Backwash cleaning method:
The backwash filter mainly uses the stainless steel filter element to physically filter the impurities in the water. The interception filtered by the filter element gradually increases, so that the pressure difference between the front and the back of the filter increases, until it is blocked. When the filter is affected by excessive mechanical impurities, it can be cleaned by backwashing. One steering ball valve is closed, and the other steering ball valve is normally opened. The interceptor adhering to the surface of the filter element is peeled off and taken away by the reverse water inflow, which is beneficial to the elimination of sediment and suspended matter in the filter layer, and to prevent the filter material from cementing, so that it can fully restore the sewage interception ability, so as to achieve the purpose of cleaning. The backwash cycle, typically one to four days.
3. Pickling cleaning method:
Chemical cleaning method - acid washing method, potassium dichromate or crystal with water dissolved to 60 to 80 degrees, slowly added to the concentration of 94% concentrated sulfuric acid to a sufficient amount. Add slowly and stir. Add to 1200 ml of potassium acid or completely dissolved, the solution color is dark red, at this time the speed of adding concentrated sulfuric acid can be accelerated until it is completely added.