Inner and outer filtering double-bag integrated dust removal filtering bag

Abstract

The invention relates to an inner and outer filtering double-bag integrated dust removal filtering bag which comprises a filtering bag and a cage skeleton for supporting the filtering bag. The integrated dust removal filtering bag is characterized in that the cage skeleton consists of an inner bag cage skeleton (2) and an outer bag cage skeleton (1); an upper positioning and installing disc (13) and a lower positioning and installing disc (10) are respectively arranged at the upper end and the lower end of the outer bag cage skeleton (1); the filtering bag consists of an inner filtering bag (8) and an outer filtering bag (7); the inner filtering bag (8) and the outer filtering bag (7) are designed into an integrated structure and can be assembled by the upper positioning and installing disc (13) and the lower positioning and installing disc (10); the inner filtering bag (8) is parallel to the outer filtering bag (7); the upper part of the inner filtering bag (8) is higher than that of the outer filtering bag (7); the bottom part of the inner filtering bag (8) is equal to that of the outer filtering bag (7); and the inner filtering bag (8) and the inner bag cage skeleton (2) as well as the outer filtering bag (7) and the outer bag cage skeleton (1) are deigned to be circular and rectangular and also can be square. The integrated dust removal filtering bag has a reasonable and technological structure and low cost; and in particular, as the upper part of the inner filtering bag (8) is higher than outer filtering bag (7), the integrated dust removal filtering bag has the characteristics of larger filtering area, high efficiency, small equipment volume, low cost and the like.

Description

1. Technical field: [0001] The invention relates to the technical field of environmental protection, in particular to a double-bag integrated dust-removing filter bag for purifying dust-containing gas. 2. Background technology: [0002] At present, the known methods of purifying dust-laden gas through filter bags are usually inner filter type and outer filter type and are used separately, the filter area is limited, the equipment occupies a large area, and the cost is high. In order to improve the efficiency of filtration and purification, most of them adopt the method of increasing the filter area of ​​the filter bag. Generally, there are two methods: one is to increase the diameter of the filter bag; the other is to lengthen the length of the filter bag. The area is large and the cost is high. Therefore, how to overcome the limited filtration area caused by the separate use of the existing internal filter and external filter, the equipment occupies a large area, and the co...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a method to solve the above-mentioned problems in view of the situation of the prior art, aiming at the limitation of the filtration area caused by the separate use of the existing inner filter type and the outer filter type, the equipment occupies a large area, and the cost is high To solve the problem, the design provides a simple structure, combined with inner and outer filter double-bag sleeves to filter, increase the filter area, save equipment space, small equipment size, and save costs. A kind of integrated inner and outer filter double bags Dust filter bag

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