Cylinder type self-cleaning screen changer

Abstract

The present application relates to the field of molten fluid screen changer, disclose a kind of column type self-cleaning screen changer, including screen changer main body and the main shaft of being inserted inside, the outer wall of main shaft is attached to filter screen, the outside of main shaft forms the region to be filtered, the inside of main shaft forms the region of filtering, main shaft side wall is equipped with the main shaft filter hole of being communicated with two regions, the end of main shaft is connected main shaft rotary drive, screen changer main body is equipped with screw rod deslagging device, is inserted with screw rod inside, screw rod is connected screw rod deslagging device drive and is communicated screw rod deslagging outlet, both ends of main shaft are equipped with two main shaft sealing ring, screen changer main body is equipped with the main shaft sealing unloading hole between two main shaft sealing rings. The present application is continuously displaced by main shaft rotation and drives filter screen, relies on the rotation of screw rod to forcibly push impurities outward, eliminates fluid pressure fluctuation and drains out the plug. The main shaft sealing unloading hole is used to release the leakage fluid pressure, effectively cuts off the internal high-pressure transmission path, to prevent the rupture of the sealing ring under pressure.

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