Operation and maintenance of candle filter

The core component of candle filter is a candle rod hollow filter unit made of trapezoid stainless steel wire wound and welded The filter candle can be used repeatedly after backwashing cleaning It is important to understand its normative operation by using candle filter Let's look at the following: 1 Before using the candle filter, it is necessary to check whether the inlet and outlet pipes have been installed properly, and fix the inlet and outlet pipes in the groove, so that the inlet and outlet are not easy to swing 2 Open the vent valve and then the dosing valve, and then the water will enter the pump and the inlet pipe through the dosing tank through the dosing valve, so that the inlet pipe is completely filled with liquid, or open the upper cover of the filter to remove the upper cover, and then the water will be injected from the filter cylinder, so that the inlet pipe is completely filled with liquid 3 Before starting the motor, check whether the use voltage and motor wiring voltage are correct to prevent errors 4 Before starting the motor, lock the dosing valve and then open the exhaust valve, so that the gas can be discharged into the dosing tank through this conduit 5 After the above operations are verified, pay attention to whether the pump running direction is correct when starting the pump motor Maintenance of candle filter: 1 Maintenance of precoating and adding system After the second precoating, there is a small amount of diatomite in the precoating pump After each precoating, add more water for the second and third precoating Until there is no obvious turbidity in the sight glass, it can not only prevent the diatomite from depositing in the precoating pump, which is easy to wear the mechanical seal, but also prevent the diatomite in the precoating pump from entering the filter due to bubbles in the filter before the next precoating, which causes the filter candle to be blocked; the addition pump should also clean the interior to prevent the diatomite from wearing the inner sphere and falling off 2 When the filter candle is disassembled for high-pressure cleaning, it shall be flushed horizontally or vertically to prevent the filter candle from bending and deformation; after each alkali cleaning or hot water cleaning, a small amount of pickling agent shall be used for small circulation for 20-30 minutes to eliminate scale or alkali residue.