The new wire wound screen tube medium frequency resistance winding welding machine, the fully closed loop screen tube precision winding welding machine, the filter element produced is suitable for filters in petroleum, chemical, mineral, papermaking and other industries. The filter surface of the filter tube is wound by wedge-shaped wire It is made of (that is, composed of stainless steel wire and stainless steel support strips) very suitable for filtration of fiber-containing and high-viscosity fluids. It has high structural strength, can withstand high working pressure
and can withstand high pressure differences. It has the characteristics of smooth pipe surface, no production edges and uniform gaps. The tiny gaps between the wedge-shaped wires form a wedge-shaped cross-section, which is beneficial to backwashing. After the filter is put into operation, as the accumulated aggregates on the filter element increase, the pressure difference between the inlet and outlet main pipes gradually increases.
When the pressure difference reaches a certain set value, the filter controller issues an instruction, and the filter begins to backwash each filter cartridge one by one. After the backwash procedure is completed, the pressure difference returns to its original state. The filter returns to normal operation
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16 Instructions for use of new wire wound screen tube medium frequency resistance winding welding machine and fully closed loop screen tube precision winding welding machine