As a sludge treatment equipment with a high utilization rate, the filter press has a unique sludge dewatering design method, which can efficiently filter impurities in the water, and is easy to operate, with high reliability and good safety. missing equipment. Filter press is common solid-liquid separation equipment, which needs to be carried out in strict accordance with the operating system. Once the filter press is operated incorrectly, various failures are prone to occur, which seriously affects the use effect and filtration effect of the filter press equipment. Filter presses need to be used in many processing plant operations, and filter presses need to be maintained after a period of use, but many people often do not know how to maintain filter presses. Kintep filter press manufacturers share with you the maintenance and maintenance method.
1. The normal filter press can be used for feeding work, and the filter press should be inspected comprehensively before each shift. Lubricating oil must be added to the transmission parts and gearbox for mechanical compression; the oil storage capacity of the oil tank and the working pressure of the hydraulic station must be checked for hydraulic compression. The hydraulic oil is generally replaced once a year, and the hydraulic system should be cleaned once during replacement. It is less than the maximum working pressure of the oil cylinder, but the minimum value cannot be lower than the allowable value of the filter pressure. If it is too small, it will cause large leakage, and if it is too large, it will damage the parts.
2. It is forbidden to start the work when the number of filter plates is less than the specified number, so as not to damage the machine parts. Check the arrangement of the filter plates before feeding, and the filter cloth should not be folded to prevent large leakage; after unloading the cake, the filter plates must be tightly pressed and arranged neatly.
3. After everything is normal, the filter plate can be pressed for pressure filtration. The filtration pressure and filtration temperature must be within the specified range. If the filtration pressure is too high, it will cause leakage, and the filtration temperature will be too high. To be uniform in concentration. There must be no impurities; after the cake is unloaded, the filter cloth and filter plate must be rinsed clean, and the residue is not allowed to stick to the sealing surface or the feeding channel, otherwise, it will affect the smooth feeding and the sealing of the filter plate, which will cause the two sides of the filter plate. The pressure is unbalanced, resulting in the deformation and damage of the filter plate.
4. The selection of filter cloth for the filter press must meet the technical requirements of the filter paddle. The new filter cloth should be shrunk first, and the opening diameter should be smaller than the diameter of the filter plate. When matching the filter plate, the cloth hole and the plate hole should be relatively concentric. The feeding hole cloth should be close to the wall of the cylinder, otherwise, it will cause unclear filtration, low filtration rate, rupture of the cloth cylinder, and failure to achieve the expected filtration purpose.
5. In the initial stage of the filter press, the filter is turbid, and the filtrate will become clear when a layer of the filter cake is formed on the filter cloth. If the filtrate is always turbid or clear, it may be that the filter cloth is damaged or the cloth hole deviates from the plate hole. At this time, the valve should be closed or the feeding should be stopped to replace the filter cloth. A small amount of leakage caused by the capillary phenomenon of the filter cloth is allowed between the filter plates.
6. When moving the filter plate of the filter press, the force should be even and appropriate, and no collision or beating is allowed to avoid damage to the sealing surface and the filter wrench handle. After a period of use, the filter cloth will become hard and its performance will decline. If it is found that there is a phenomenon that affects the filtration rate, the corresponding low concentration of weak acid and weak alkali can be used for neutralization and cleaning to restore the function of the filter cloth. If it cannot be restored, replace it in time.
7. The slurry, washing liquid, or compressed air valve must be activated according to the operating procedure, not simultaneously, and the compressed air pressure cannot exceed the filtration pressure when the diaphragm is squeezed.
The above is the maintenance method of the filter press, I hope to help you. As a filter press manufacturer, Kintep has a professional manufacturing team, and our products have stable performance. If you want to learn more about filter presses, then come and pay attention to our website.
