Reverse flushing self-cleaning continuous filter

Abstract

The invention provides a reverse flushing self-cleaning continuous filter which comprises a filter cabin body, a cabin door connected with the bottom of the filter cabin body, and a filter screen board in the filter cabin body, wherein a feeding hole and a discharging hole in two sides of the filter screen board are formed in the filter cabin body; the reverse flushing self-cleaning continuous filter further comprises a suction block in the filter cabin body and a suction block driving device on the outer side of the top of the filter cabin body; the suction block is positioned on the side, close to the feeding hole, of the filter screen board and is in tight contact with the filter screen board; the driving shaft of the suction block driving device drives the suction block to rotate; a suction hole is formed in the side, in contact with the filter screen board, of the suction block; a discharging opening is formed in the side, far away from the filter screen board, of the suction block; a flow guide sleeve is arranged on the cabin door; the top of the flow guide sleeve is matched with the discharging opening of the suction block in a sealing manner; a discharging screw is arrangedin the flow guide sleeve; the upper end of the discharging screw is connected onto the suction block and is coaxial with the driving shaft of the suction block driving device; and the lower end of the discharging screw penetrates out of the outer side of the cabin door.

Description

technical field [0001] The invention relates to a filter, in particular to a reverse flushing self-cleaning continuous filter. Background technique [0002] Plastic flat wire drawing units, plastic round wire drawing units, plastic extrusion coating units, plastic film blowing units, plastic calendering units and other host plastic extruders manufactured, sold and used at home and abroad, plastic raw materials in molten state The plastic extruder must be filtered before it is melted and extruded to the die head. Most of the most commonly used melt filter structures currently require frequent replacement of the filter screen, but the filter screen has a low filtration efficiency, especially when using recycled plastic. Due to the large amount of impurities in the material, frequent replacement of the filter screen, the labor intensity of changing the screen is high, waste of raw materials and electric energy, increased costs and unnecessary troubles, and the normal production...

AI Technical Summary

Problems solved by technology

[0002] Plastic flat wire drawing units, plastic round wire drawing units, plastic extrusion coating units, plastic film blowing units, plastic calendering units and other host plastic extruders manufactured, sold and used at home and abroad, plastic raw materials in molten state The plastic extruder must be filtered before it is melted and extruded to the die head. Most of the most commonly used melt filter structures currently require frequent replacement of the filter screen, but the filter screen has a low filtration efficiency, especially when using recycled plastic. Due to the large amount of impurities in the material, frequent replacement of the filter screen, labor-intensive screen replacement, waste of raw materials and electric energy, increased costs and unnecessary troubles, and serious impact on normal production when the machine is shut down to replace the filter screen

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