Wear-resistant and blowing-resistant filter bag

Abstract

The utility model discloses a wear-resistant and blowing-resistant filter bag which comprises a bag head part, a bag body part and a bag bottom part, the bag head part and the bag bottom part are both made of non-woven fabrics, and the raw materials are chemical fibers; the bag body part is woven cloth made of glass fibers, and the bag head part and the bag bottom part are fixedly connected with the upper end and the lower end of the bag body part respectively. The filter bag is designed into the bag head part, the bag body part and the bag bottom part in a split manner, materials of the bag head and the bag bottom are adjusted, glass fibers of the bag head and the bag bottom are replaced by chemical fibers with excellent wear resistance and folding resistance, and the bag body part is kept to be made of the glass fibers; the bag cage has the advantages of being excellent in performance, high in mechanical strength, good in size stability, low in price, high in cost performance and the like, the problem that the bag head and the bag bottom are damaged and invalid due to friction and abrasion between the bag cage and the bag bottom, direct blowing of blowing airflow and the like can be solved, the high-precision filtering effect and the high strength of the bag body are reserved, and the manufacturing cost and the time efficiency are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dust removal equipment technical field, especially point to a kind of wear-resistant filter bag of resistance to spray. BACKGROUND

[0002] In the disposal and purification of flue gas in carbon black, waste incineration, metallurgy and other industries, glass fiber filter material is usually selected as filter material.

[0003] Glass fiber has the advantages of high strength, good dimensional stability, excellent acid resistance and temperature resistance, low price, high cost performance, etc., but the folding resistance and wear resistance are poor. After the glass fiber filter bag is put into use, the inner side of the bag head rubs and wears with the cage, or a hole appears at the bottom of the bag due to the direct spray of airflow, resulting in failure. Similar situations occur frequently, resulting in reduced production efficiency and increased maintenance and bag replacement costs.

[0004] If the application effect of the filter bag is considered, all glass fibers are replaced with chemical fibers, and the mechanical strength is lower than that of the filter bag made of glass fibers, and the production cost is rising, which is expensive. For this situation, the industry usually uses glass fiber and other fiber blending method to improve the brittleness and folding resistance of glass fiber, but the production cost of blending process is also expensive, and the production time is longer. For some users, it is still difficult to bear, after all, the longer the maintenance time after the filter bag is damaged, the greater the loss. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a wear-resistant filter bag that resists spray, solves the problems in the prior art, improves the spray resistance of the filter bag under the premise of retaining the original high strength and temperature resistance, reduces the production cost, and improves the application prospect and effect.

[0006] In order to achieve the above purpose, the solution of the utility model is:

[0007] A wear-resistant filter bag that resists spray, comprising a bag head portion, a bag body portion and a bag bottom portion; the bag head portion and the bag bottom portion are both made of non-woven fabric, and the raw material used is chemical fiber; the bag body portion is made of woven fabric of glass fiber, and the bag head portion and the bag bottom portion are respectively fixedly connected with the upper and lower ends of the bag body portion.

[0008] The bag head portion and the bag bottom portion are respectively detachably fixedly connected with the upper and lower ends of the bag body portion through an expansion ring.

[0009] The chemical fiber is polyphenylene sulfide, polytetrafluoroethylene, aramid or polyimide.

[0010] The length of the bag head portion is 300-500mm.

[0011] The length of the bag body part is 2000-8000mm.

[0012] The length of the bag bottom part is 300-500mm.

[0013] After the technical scheme is applied, the utility model has the following technical effects:

[0014] The utility model discloses a filter bag of wear resistance and spray resistance, which comprises a bag head part, a bag body part and a bag bottom part. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of specific embodiment of the utility model;

[0016] EXPLANATION OF REFERENCE NUMBERS

[0017] 1-bag head part;2-bag body part;3-bag bottom part;4-bulging ring. DETAILED DESCRIPTION

[0018] In order to further explain the technical scheme of the utility model, the utility model will be described in detail through specific embodiments.

[0019] Reference Figure 1 As shown in the figure, the utility model discloses a kind of wear-resistant and spray-resistant filter bag, including bag head part 1, bag body part 2 and bag bottom part 3;

[0020] Bag head part 1, bag bottom part 3 are made of non-woven fabric, and the raw material used is chemical fiber;

[0021] Bag body part 2 is woven cloth made of glass fiber, and bag head part 1, bag bottom part 3 are respectively fixedly connected with the upper and lower ends of bag body part 2.

[0022] Through the above scheme, the utility model discloses a traditional integral filter bag is split design as bag head part 1, bag body part 2 and bag bottom part 3, and adjusts bag head part 1, bag bottom part 3's material, replaces its glass fiber with excellent wear resistance, folding performance chemical fiber, and keeps bag body part 2 by glass fiber, has excellent performance, high mechanical strength, good dimensional stability, low price and high performance price ratio and so on Advantage, not only can improve bag head, bag bottom because with bag cage and rub wear and tear, spray blowing airflow direct blow and cause the problem of breakage failure, still keep the high-precision filtering effect of bag body and high strength, reduce the manufacturing cost and time limit of filter bag, improve the service life of filter bag.

[0023] The following shows the specific example of the utility model.

[0024] The bag head part 1 and the bag bottom part 3 are detachably fixed and connected with the upper and lower ends of the bag body part 2 through an expansion ring 4, facilitating assembly, and even if part is damaged, it can be quickly replaced.

[0025] The chemical fiber is polyphenylene sulfide, polytetrafluoroethylene, aramid or polyimide.

[0026] The length of the bag head part 1 is 300-500 mm, the length of the bag body part 2 is 2000-8000 mm, and the length of the bag bottom part 3 is 300-500 mm.

[0027] The above embodiments and drawings are not limited to the product form and style of the utility model, and any ordinary skilled person in the art can make appropriate changes or modifications, which should be considered as not departing from the scope of the utility model.

Claims

1. A wear-resistant and pulse-jet resistant filter bag, characterized in that: Includes the bag opening, bag body, and bag bottom; Both the bag head and bottom are made of nonwoven fabric, and the raw material used is chemical fiber; The bag body is made of woven fabric of glass fiber, and the bag head and bag bottom are fixedly connected to the upper and lower ends of the bag body, respectively.

2. The wear-resistant and pulse-jet resistant filter bag as described in claim 1, characterized in that: The bag head and bag bottom are detachably and fixedly connected to the upper and lower ends of the bag body by an expansion ring.

3. The wear-resistant and pulse-jet resistant filter bag as described in claim 1, characterized in that: The chemical fibers are polyphenylene sulfide, polytetrafluoroethylene, aramid, or polyimide.

4. The wear-resistant and pulse-jet resistant filter bag as described in claim 1, characterized in that: The length of the bag head portion is 300~500mm.

5. The wear-resistant and pulse-jet resistant filter bag as described in claim 1, characterized in that: The length of the bag body is 2000~8000mm.

6. The wear-resistant and pulse-jet resistant filter bag as described in claim 1, characterized in that: The length of the bottom part of the bag is 300~500mm.

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