Combined polypropylene thermal spray fiber membrane folding type filter element

Abstract

The invention relates to a combined polypropylene thermal spray fiber membrane folding type filter element which comprises a filtering medium layer, an inner supporting barrel and an outer supporting barrel, wherein the filtering medium layer is folded into fins and then wound on the outer circumference of the inner supporting barrel, the outer supporting barrel is sleeved at the outer side of a barrel formed by the filtering medium layer, the filtering medium layer is formed by overlapping three layers of polypropylene thermal spray fiber membranes and two protective layers, wherein the three layers of the polypropylene thermal spray fiber membranes are adjacently connected in sequence, the protective layers are respectively arranged at the upstream side and the downstream side of the polypropylene thermal spray fiber membrane, and the adjacent fins are in welding connection. Since the three layers of polypropylene thermal spray fiber membranes are arranged in the filtering medium layer of the folding type filter element, the fiber membranes are protected by using the long-fiber nonwoven fabrics at both sides of the folding type filter element, the dirt holding capacity of the filter element is increased, particles are gradually intercepted from the large size to the small size, the pollution resistibility of the filter element is improved, and the filtering precision and the efficiency of the filter element are ensured, thus the service life of the filter element is greatly prolonged, and the quality of a filtered liquid product is guaranteed to be stable.

Description

Technical field: [0001] The invention relates to liquid purification technology, in particular to a liquid particle removal and clarification device, in particular to a combined polypropylene heat-sprayed fiber membrane folded filter element. Background technique: [0002] Filtration devices are widely used in pharmaceutical fermentation, bioengineering, food and beverage, modern chemical industry, electronics industry, environmental protection and other industries for particle removal and filtration of liquids and other liquid purification applications. The early filter devices were plate-and-frame devices, which used geotextiles as filter media, which had high energy consumption, large footprint, poor filtration accuracy, low filtration efficiency, short service life, and high labor intensity. Later, bag filters appeared, and bag filters still use geotextiles as the filter medium. Although the problems of high energy consumption, large occupied area and high labor intensit...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a combined polypropylene heat-sprayed fiber membrane pleated filter element, said combined polypropylene thermal-sprayed fiber membrane pleated filter element will solve the filtrate quality that exists in the pleated filter element in the prior art Unstable, unguaranteed filtration efficiency, and short service life of the filter element

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