Double-plate type filter without replacing filter screen

Abstract

The invention provides a double-plate type filter without replacing a filter screen, belonging to the technical field of melt filter equipment, and aiming at solving the problem that when the existing filter is used, the service life of a filter plate is shortened. The double-plate type filter without replacing the filter screen comprises a shell; a rotating shaft is rotatably arranged in the shell in a penetrating way; the peripheral wall of the shell is respectively provided with a feeding hole and a discharge hole; a fixed filter tray is fixedly connected in the shell; the inner circumference wall of the shell is connected with a movable filter tray in a sliding way along the axial direction of the shell; a scraper is fixedly connected in a feeding cavity of the rotating shaft; a cutting edge of the scraper respectively leans against the sides of the fixed filter tray and the movable filter tray; a hold-down mechanism is also arranged in the shell; the circumference wall of the shell is also provided with an impurity discharge hole which is connected with a transmission mechanism. After the double-plate type filter without replacing the filter screen is used, the service lives of the filter trays are prolonged, and the filtering quality and the filtering efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of melt filtering equipment, and relates to a double-plate non-replacing filter. Background technique [0002] Plastic is a kind of synthetic polymer material with plasticity. It forms three indispensable synthetic materials in today's daily life together with synthetic rubber and synthetic fiber. Specifically, plastic is made of natural or synthetic resin as the main component, and various additives are added. , can be molded into a certain shape under certain conditions such as temperature and pressure, and can maintain the same shape at room temperature. Compared with metal, stone, and wood, plastic products have the advantages of low cost and strong plasticity. The finished product usually exists in the state of plastic granules before it needs to be used and melted to become a plastic melt. After melting, the plastic melt still needs to be filtered. Currently, there are individual filter devices for the...

AI Technical Summary

Problems solved by technology

[0003] For example, the Chinese invention patent application (application number: 201120178805.7) discloses a filter without wire mesh, including a filter part and a waste removal part. The transmission shaft in the box is connected, and the other end of the transmission shaft is sequentially assembled from the end to the shaft body to rotate blades, filter plates, and support plates. One side of the support plate is in close contact with the filter plate, and the other side is against the support inside the box. On the boss; the support plate and the inner side of the box form a cavity for containing the fine materials passing through the filter plate, and the cavity communicates with the discharge port opened on the outside of the box; the box is equipped with a miscellaneous outlet corresponding to the surrounding surface of the rotating blade, and the miscellaneous outlet It is connected with the waste removal part, which improves the working efficiency of the recycled plastic particles, but the inlet of the filter is opened on the side of the box, directly opposite to the filter plate, because the plastic melt has a high temperature, and the high-pressure Pressed into the box, so the plastic melt entering the box will have a greater impact on the front of the filter plate. During long-term use, the impact will gradually cause the filter plate to deform, and at the same time, the greater impact will also cause some Miscellaneous particles enter the filter holes and block the filter holes, reducing the service life of the filter plate

Images