CN2915227Y

CN2915227Y - An impulse type fiberglass filter bag

Info

Publication number: CN2915227Y
Application number: CNU2006200425074U
Authority: CN
Inventors: 孙寒菊; 祝爱英
Original assignee: BAOGANG PRODUCTION COORDINATION Co SHANGHAI
Current assignee: Baosteel Development Co Ltd
Priority date: 2006-06-08
Filing date: 2006-06-08
Publication date: 2007-06-27
Anticipated expiration: 2016-06-08

Abstract

The utility model provides a pulsating fiberglass filter bag comprising a bag opening, a bag body, a bad bottom and spring rings that wrap the bag opening. The device is characterized in that the upper and lower edges of the bag opening are folded inward and they are wrapped with spring rings. The edge of upper opening of the bag body is folded outwards and the section of the lower bag opening is provided with a reinforcing layer. The edge of the bottom opening of appended reinforcing layer body is folded outward and the upper and lower edges of the bag body are folded inward; the bag bottom comprises two layers of fiberglass materials. The folded edge of the outer layer bag wraps the inner layer and are joined with the bag body by sewing; The dual-fold edge of the cylinder of the bag body is inward folded wrapping edge that are occluded with each other; the bag body is joined with the bag opening in overlapped sewing and the width of the overlapped section is based on the fact that the bag body does not exceed the first line of suture; the joining section of the bag bottom and the bag body must have at least three lines of sutures. The service life of the fiberglass filter bag is at least doubled.

Description

A kind of pulsed glass fibre filter bag

Technical field

The utility model relates to a kind of pulsed glass fibre filter bag, belongs to bag type filtering member class, is particularly useful for the usefulness of metallurgy industry to the interception and the collection of the particle in the high temperature dust gas.

Background technology

The glass fibre filter bag that is used for pulsaire collector, its major function is the component parts of cleaner commonly used that the graininess dust in the high temperature dust gas in some specific station in the metallurgy industry is effectively tackled, why selecting glass fibre for use, mainly is the requirement that it can satisfy 260～280 ℃ of hot environments.

But, because the coherent of glass fiber yarn, flexible resistance are less than natural fiber and synthetic fibers, and this kind filter bag after installing is in compressed air and repeats the directive filter bag, and the filtering material that makes filter bag is among the continued jitters operating mode that is under the effect of air-flow from top to bottom.Be in the long-term shake just because of filter bag, glass fiber filter material pine, diffusing characteristic very easily cause the filter bag suture site to throw off gradually in long-term shake in use, form damaged.So not only influence the filter efficiency of deduster, cause environmental pollution, and can increase production cost.

Therefore, how at the loose characteristic of glass filtering material, reduce the breakage that causes because of filtrate is loose, increase and use fastness, extending working time becomes major subjects of the present invention.

The utility model content

The purpose of this utility model: be intended to propose a kind of novel pulse type glass filter bag that can effectively overcome the existing above-mentioned defective of glass fibre filter bag, wish that it not only satisfies the practical environment of high temperature, even under the effect of long-term air pulse, also can prevent the loose of filter material, reach long service life.

This pulsed glass fibre filter bag was made of sack 1, bag body 2 and the bag end 3 and the turn 4 that is wrapped in the sack, and it is characterized in that: the upper and lower limit of described sack 1 is inside flanging, its top parcel turn 4; The suitable for reading outside flanging of described bag body 2, a back-up coat 5 adds in sack portion in its underpart, and rolls over outside the bag body 2 Di Kou limits, following inwardly folding on the additional back-up coat 5; The described bag end 3, be made up of two-layer glass fiber material, outer bag bottom edgefold wrapping inner layer, and sew up fixed with the bag body; The stacked limit of the cylindrical shell two of described bag body 2 portion is interlock shape invagination bound edge each other.

Described bag body 2 is sewed up in an overlapping with sack 1 and is connected, and the width of overlapping portion is as the criterion with the first road suture 6 that the bag body is no more than sack.

The connecting portion of the described bag end 3 with bag body 2 should have three road sutures at least.

This pulsed glass fibre filter bag according to above technical scheme proposition, by the improvement on the syndeton, solved the damaging problem that glass fiber material causes because of filtrate is loose, not only kept high temperature resistant practical environment, and increased product use fastness, make be increased to 24 months service time from original 10 months.

Accompanying drawing 1 is the utility model agent structure schematic diagram;

Accompanying drawing 2 is the longitudinal sectional drawing of Fig. 1;

Accompanying drawing 3 is the stacked suture knots composition of bag body;

Accompanying drawing 4 is a bag end suture knots composition.

The specific embodiment

This pulsed glass fibre filter bag as shown in the figure, it is a kind of inventive improvements to the like product that generally uses now.Glass fibre filter bag after this improvement is made up of sack 1, bag body 2 and the bag ends 3 three part.Its concrete structure and function are as follows:

1, on one's body mouthful flanging of bag, bag body its function of flanging outwardly: one, prevent from that filtrate is loose to open this position cracky not behind the finished product.Two, flanging has guaranteed the aesthetics of product outwardly.Three and sack position combination.

2, the flanging of sack.Sack is its function of flanging inwardly: one, prevent from that filtrate is loose to open this position cracky not behind the finished product.Two, flanging has guaranteed the aesthetics of product inwardly.Three and the combination of a bag body position.

3, sack 1 and bag being connected of body 2.Bag body and sack overlapping suture, overlapping width is as the criterion its function with the first road suture that the bag body is no more than sack: one, the length of assurance product, two, prevent that product from rubbing with the accessory that inserts when mounted.

4, the bag ends 3 flanging.The function of flanging is made of at the bag end two layers of filtering material: one, two metafiltration material are fixed.Two, prevent from that filtrate is loose to open.Three and bag body combination.

5, a back-up coat 5 is established in bag body 2 bottoms, and this back-up coat is two flangings up and down.Bag body bottom back-up coat is two its functions of flanging inwardly up and down: one, prevent that filtrate is loose.Two, guarantee that product is attractive in appearance.Three, reinforcement effect is played in the product bottom, prolong the service time of product.

6, bag body width is sewed up.Each the inside flanging of two limits that needs stitching keeps the smooth of surface, its function: one, prevent that filtrate is loose.Two, guarantee to sew up fastness.

7, the bag end 3 and bag body 2 is connected.The bag end 3, guarantee to sew up fastness with bag body 2 by three road sutures.

This pulsed glass fibre filter bag can divide following seven procedures to finish in manufacturing process:

1, sack: be inserted in the accessory (turn) that needs in sack after, along the edge suture one of turn, stagger in two layers of limit up and down of sack.

2, bag body: the vertical bound edge of bag body is sewed up.

3, do a bag body: bag is mouthful outside flanging on one's body, and suture together.

4, do a bag body: bag body bottom back-up coat and bag body are sewed up, following inwardly folding on the back-up coat.

5, do bag at the bottom of: a bag end, be made up of two metafiltration material, and diameter is little at the bottom of the inner layer bag, and diameter is big at the bottom of the outer bag.With at the bottom of encasing inner layer bag at the bottom of the outer bag, suture together.

6, sack is connected with the bag body: with bag body and sack overlapping suture, sewing up width is as the criterion with the first road suture that the bag body is no more than sack, sack is suture five roads altogether, and the sack edge is inside flanging when sewing up, the firmness when making loose filtering material can keep the smooth of outward appearance and use.

7, the bag end, be connected with the bag body: with at the bottom of the bag and the stitching of bag body, suture three roads altogether.

Claims

1, a kind of pulsed glass fibre filter bag, by sack (1), bag body (2) and the bag end (3) be wrapped in turn (4) formation in the sack, it is characterized in that: the upper and lower limit of described sack (1) is inside flanging, and turn (4) is wrapped up on its top; The suitable for reading outside flanging of described bag body (2), a back-up coat (5) adds in sack portion in its underpart, and rolls over outside bag body (2) the Di Kou limit, and additional back-up coat (5) is gone up following inwardly folding; The described bag end (3) is made up of two-layer glass fiber material, outer bag bottom edgefold wrapping inner layer, and sew up fixed with bag body (2); The stacked limit of the cylindrical shell two of described bag body (2) portion is interlock shape invagination bound edge each other.

2, a kind of pulsed glass fibre filter bag as claimed in claim 1 is characterized in that: described bag body (2) is sewed up in an overlapping with sack (1) and is connected, and the width of overlapping portion is as the criterion with the first road suture (6) that the bag body is no more than sack.

3, a kind of pulsed glass fibre filter bag as claimed in claim 1 is characterized in that: the described bag end (13) should have three road sutures at least with the connecting portion of bag body (2).