Fully automatic backwash coarse filtration system for high viscosity materials

Abstract

A high-viscosity material full-automatic backwashing coarse-filtration system comprises a valve device, an inlet connector, an outlet connector and multiple filtration chambers; the upper parts of the filtration chambers are all provided with an outlet, and all of the outlets are communicated with the outlet connector; the lower parts of the filtration chambers are all provided with an inlet, and all of the inlets are communicated with the inlet connector; the inlet connector is provided with a material inlet, a material outlet and a sewage draining exit communicated with the exterior; and the inlet connector is connected with the valve device, and the valve device is used to control opening and closing of the material inlet, the material outlet and the sewage draining exit of the inlet connector. When the inlet pressure of the filtration chambers is higher than or equal to a preset pressure difference value, the valve device controls the material inlet to be connected with the sewage draining exit, and a backwashing program is operated in the filtration chambers. Many links are reduced at the cleaning operation, operation problems of personnel are reduced, and time and manpower are saved.

Description

technical field [0001] The invention relates to a full-automatic backwash coarse filtration system for high-viscosity materials, and belongs to the technical field of high-viscosity melt filtration equipment. Background technique [0002] At present, filter elements used in high temperature, high pressure, high viscosity materials (such as plastic industry) are generally formed by folding and extruding multi-layer wire mesh, then assembled on a skeleton of a porous tube, and then made through multiple processes. On the one hand, this structure can maximize the expansion area, prolong the filtration time at the same large volume, and have good pressure resistance. However, with the gradual development of the filter in the direction of full automation, the backwashing of the filter device has been paid more and more attention. However, the pleated structure of the filter screen of this device makes it difficult to clean after impurities enter, and the commonly used calcinatio...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the filtration and cleaning problems currently encountered in the production process of the high-viscosity melt field, the present invention provides a fully automatic backwash coarse filtration system for high-viscosity materials

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