Explosion-proof-type full-automatic reverse-washing filter

Abstract

The invention provides an explosion-proof-type full-automatic reverse-washing filter which further comprises a pneumatic motor, a plurality of tubular filter elements and a control box, wherein the pneumatic motor is fixed on a motor fixed seat at the top of a cylinder barrel; the control box is fixed on one side wall of the cylinder barrel; an output shaft of the pneumatic motor is connected with a blow-off pipe and drives the blow-off pipe to rotate; a tray perpendicular to the inner wall of the cylinder barrel is arranged in the middle of the inner wall of the cylinder barrel; the external diameter of the tray is equal to the diameter of the inner wall of the cylinder barrel; the tubular filter elements are connected to the tray in an encircling manner; the distances from the filter elements to the center of the tray are the same. According to the explosion-proof-type full-automatic reverse-washing filter, a pneumatic source can adopt compressed air in a dry fog system, and is fused with the dry fog system well, a complex power connecting circuit is omitted, and the system is safer and more stable.

Description

technical field [0001] The invention relates to an explosion-proof air-controlled full-automatic backwash filter, which belongs to the technical field of machinery. Background technique [0002] Backwash filter, when the pressure difference of the filter reaches the preset value, it will start the automatic cleaning process. During this period, the clean water supply will not stop, the cleaning valve will open, and the water pressure in the cleaning room and the sewage suction device will drop significantly. There is a pressure difference between the cylinder and the suction pipe, and a suction force is generated between the suction pipe and the cleaning chamber through the suction nozzle to form a suction process. At the same time, the electric motor drives the suction pipe to make a spiral movement along the axial direction. The combination of the axial movement and the rotating movement of the sewage suction device completely cleans the inner surface of the entire filter...

AI Technical Summary

Problems solved by technology

[0004] However, the existing backwash filters are all driven by electricity. If this filter is applied to a relatively harsh environment, such as an underground environment, the environment has relatively high safety requirements. The complex circuit connection of components is prone to accidents in such a harsh environment, which cannot meet the explosion-proof standard and has low safety

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