Double filter element long-term screen change safety protection device on the extruder

Abstract

The invention relates to the field of extruders, and particularly relates to a dual-filter-element long-acting net-changing safety protection device on an extruder. The dual-filter-element long-acting net-changing safety protection device comprises a strainer body, wherein the strainer body is internally provided with two parallel filter elements; the parts, in which the axial directions of the filter elements are positioned, of the two end surface of the strainer body are respectively provided with a round plug, and the plugs are communicated with the strainer body by virtue of an inner hexagon screw; the upper surface of the strainer body is provided with a strainer housing, the upper part of the strainer housing is provided with a safety protection frame, and two ends of the safety protection frame are respectively provided with baffles; the baffles are respectively positioned on the two sides of the plugs, the inners side of the baffles are respectively provided with a bugle, and the longitudinal sections of the bugles are of an isosceles trapezoid shape; two bevel edges of each isosceles trapezoid are respectively tangent with the two plugs on the same side, and the outer walls of the baffles are provided with a plurality of stiffeners, and the baffles are made of carbon steel. The plugs are effectively prevented from being sprayed out by virtue of the dual-filter-element long-acting net-changing safety protection device, the dual-filter-element long-acting net-changing safety protection device is simple in structure, convenient in use and high in safety performance.

Description

technical field [0001] The invention relates to the technical field of extruders, in particular to a long-term safety protection device for double filter elements on an extruder. Background technique [0002] After the double filter element on the extruder filters out impurities during the working process, the pressure in the filter body increases, and the plug is often removed to replace a new filter screen. There are various long-term screen replacement devices for double filter elements at home and abroad. During the working process of changing the screen, the waste filtered out by the molten resin extruded by the extruder needs to replace the filter screen, and the screws on the filter screen plug are often disassembled, and the screen produces a pressure of up to 20Mpa in the screen area during the working process. , The hexagonal screws on the plugs at both ends of the filter body will slip after a long time of use, causing the plugs to spray out and hurting people and...

AI Technical Summary

Problems solved by technology

[0002] After the double filter element on the extruder filters out impurities during the working process, the pressure in the filter body increases, and the plug is often removed to replace a new filter screen. There are various long-term screen replacement devices for double filter elements at home and abroad. During the working process of changing the screen, the waste filtered out by the molten resin extruded by the extruder needs to replace the filter screen, and the screws on the filter screen plug are often disassembled, and the screen produces a pressure of up to 20Mpa in the screen area during the working process. , The hexagonal screws on the plugs at both ends of the filter body will slip after a long time of use, causing the plugs to spray out and hurting people and equipment around. Due to space constraints, this problem has plagued the company for a long time and has not been found. Appropriate way

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