Wrinkle type filter bag for flue gas purification

Abstract

The utility model relates to the technical field of pleated filter bags, and discloses a pleated filter bag for flue gas purification, which comprises an upper fixing belt and a pleated bag body, a lower fixing belt is arranged below the upper fixing belt, and a plurality of spacing belts are arranged between the upper fixing belt and the lower fixing belt. The upper fixing band and the lower fixing band are fixed on the cage frame, the upper fixing band is fixed on the cage frame, the lower fixing band is fixed on the lower side of the cage frame, the interval bands are fixed between the upper fixing band and the lower fixing band, wrinkled bag bodies are fixed between the interval bands and between the interval bands and the upper fixing band and between the interval bands and the lower fixing band, and first anti-skid rubber mats are fixed in the middle of the inner side of the upper fixing band in an adhesive mode. The cage frame is matched with the anti-skid rubber mat to increase the connection firmness between the cage frame and the filter bag, so that the problem that the connection between the filter bag and the cage frame is not stable enough when the conventional pleated filter bag for flue gas purification is used is solved, the stability of the filter bag in use is greatly improved, and the influence on the filtering effect due to excessive looseness of the pleated bag body is avoided.

Description

Technical Field

[0001] The utility model application relates to the technical field of pleated filter bags, in particular to a pleated filter bag for flue gas purification. Background Art

[0002] The filter bag is used together with the matching filter, and the system fluid pressure is used to squeeze the liquid through the filter bag to achieve the purpose of filtration. It has the advantages of fast flow rate, large processing capacity and long service life of the filter bag. It is particularly suitable for occasions where large flow requires closed filtration. It is a key part of the operation of the bag dust collector. Usually, the cylindrical filter bag is hung vertically in the dust collector and is also commonly used in flue gas purification.

[0003] The cage frame inside the filter bag is used to support the filter bag and prevent the filter bag from collapsing. At the same time, it helps to remove and redistribute the dust cake. Because the filter bag needs to be put on the cage frame and fixed when in use, the pleated part of the bag body cannot maintain a stable fit and fixation with the cage frame, resulting in an unstable connection between the filter bag and the cage frame after the connection is completed, which can easily affect the filtering effect. Summary of the invention

[0004] In order to solve the problem that the connection between the existing pleated filter bag for flue gas purification and the cage frame is not stable enough when in use, the utility model provides a pleated filter bag for flue gas purification to solve the above problem.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pleated filter bag for flue gas purification, comprising an upper fixing belt and a pleated bag body, a lower fixing belt is arranged below the upper fixing belt, a plurality of spacing belts are arranged between the upper fixing belt and the lower fixing belt, a pleated bag body is fixed between each spacing belt and between the spacing belt and the upper fixing belt and the lower fixing belt, a non-slip rubber pad is glued and fixed to the middle part of the inner side of the upper fixing belt, and a wrapping fixing belt is symmetrically wrapped around the outer side of the non-slip rubber pad, the outer ends of the two wrapping fixing belts are fixed to the inner wall of the upper fixing belt, the opposite ends of the two wrapping fixing belts are fixed by a zipper, and the zipper is arranged to be bidirectionally openable, and a zipper head is arranged at one end of the zipper;

[0007] A plurality of straps 1 are equidistantly fixed to the upper portion of one side of the spacing belt away from the upper fixing belt, and straps 2 are fixed to the spacing belt below straps 1, Velcro is fixed to the bottom sides of straps 1 and 2, and anti-slip rubber sleeves are fixed to the corners of the top surface of the lower fixing belt.

[0008] Furthermore, sealing pads are fixed on the inner walls of the upper and lower ends of the lower fixing belt, a sealing filter cloth is arranged between the upper and lower sealing pads, Velcro is fixed on the upper and lower ends of the edge of the sealing filter cloth, and another Velcro is fixed on the upper and lower ends of the edge of the sealing filter cloth.

[0009] Furthermore, both ends of the zipper are configured to be detachable, the height of the zipper head is smaller than the height of the inside of the upper fixing belt, and the thickness of the inside of the wrapping fixing belt is greater than the thickness of the anti-slip rubber pad.

[0010] Furthermore, a non-slip rubber pad 2 is glued and fixed to the inner side of the spacing band between each group of the straps 1 and 2, and the length of the non-slip rubber pad 2 is greater than the length of the straps 1 and 2.

[0011] Furthermore, the widths of the Velcro on the upper and lower sides of the edge of the sealing filter cloth and the edge of the sealing gasket are the same, and the Velcro on the inner sides of the upper and lower sealing gaskets are respectively parent and child surfaces.

[0012] Furthermore, an auxiliary drawstring is symmetrically fixed to the bottom surface of the sealing filter cloth inside the lower sealing pad belt, and the thickness of the auxiliary drawstring is smaller than the thickness from the bottom surface of the sealing filter cloth to the bottom surface of the lower fixing belt.

[0013] Furthermore, the top surface of the sealing filter cloth is bonded and fixed to the bottom surface of the upper sealing gasket belt, and the Velcro on the bottom surface of the sealing filter cloth is bonded and fixed to the top surface of the lower sealing gasket belt.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, a fixed spacing belt is set between the pleated bag bodies by means of spacing limitation and fixing, and the spacing belt is fixed to the cage frame, and the connection firmness between the cage frame and the filter bag is increased with the help of anti-skid rubber pads, which solves the problem that the connection between the filter bag and the cage frame is not stable enough when the existing pleated filter bag for flue gas purification is used, greatly improves the stability of the filter bag when in use, and avoids the pleated bag body being too loose to affect the filtering effect.

[0016] 2. In the utility model, the detachable sealing design at the bottom can satisfy the filtering of the bottom and side bags at the same time, and the smoke can enter from the top or bottom and be discharged after being filtered by the outer pleated filter bag, which greatly improves the application range of the pleated filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 is a front view schematic diagram of a pleated filter bag structure according to an embodiment of the present application;

[0019] Figure 2 yes Figure 1 A schematic front cross-sectional view of the pleated filter bag structure in the illustrated embodiment;

[0020] Figure 3 yes Figure 1 A schematic cross-sectional diagram of a partial structure of a pleated filter bag in the illustrated embodiment;

[0021] Figure 4 yes Figure 1 A schematic front cross-sectional view of the local structure of a pleated filter bag in the illustrated embodiment.

[0022] The meanings of the reference numerals in the figure are as follows: 1. Upper fixing belt; 2. Lower fixing belt; 3. Spacer belt; 4. Pleated bag body; 5. Anti-skid rubber pad 1; 6. Wrapping fixing belt; 7. Zipper; 8. Zipper head; 9. Anti-skid rubber pad 2; 10. Binding strap 1; 11. Binding strap 2; 12. Anti-skid rubber sleeve; 13. Sealing pad belt; 14. Sealing filter cloth; 15. Velcro; 16. Auxiliary drawstring. DETAILED DESCRIPTION

[0023] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] Reference Figure 1 , Figure 2 and Figure 3 A pleated filter bag for flue gas purification comprises an upper fixing belt 1 and a pleated bag body 4, a lower fixing belt 2 is arranged below the upper fixing belt 1, a plurality of spacing belts 3 are arranged between the upper fixing belt 1 and the lower fixing belt 2, a pleated bag body 4 is fixed between each spacing belt 3 and between the spacing belt 3 and the upper fixing belt 1 and the lower fixing belt 2, an anti-skid rubber pad 5 is glued and fixed to the middle part of the inner side of the upper fixing belt 1, and a wrapping fixing belt 6 is symmetrically wrapped around the outer side of the anti-skid rubber pad 5, the outer ends of the two wrapping fixing belts 6 are fixed to the inner wall of the upper fixing belt 1, the opposite ends of the two wrapping fixing belts 6 are fixed by a zipper 7, both ends of the zipper 7 are set to be detachable, the height of the zipper head 8 is less than the height of the inner part of the upper fixing belt 1, the thickness of the inner part of the wrapping fixing belt 6 is greater than the thickness of the anti-skid rubber pad 5, and the zipper 7 is set to be bidirectionally openable, and a zipper head 8 is arranged at one end of the zipper 7;

[0025] A plurality of straps 10 are fixed at equal intervals on the upper part of the spacer band 3 away from the upper fixing band 1, and an anti-skid rubber pad 2 9 is glued and fixed to the inner side of the spacer band 3 between each group of straps 1 10 and straps 2 11, and the length of the anti-skid rubber pad 2 9 is greater than the length of straps 10 and straps 2 11, and straps 2 11 are fixed to the spacer band 3 below straps 10, and Velcro 15 is fixed to the bottom sides of straps 10 and straps 2 11, and an anti-skid rubber sleeve 12 is fixed to the corner of the top surface of the lower fixing band 2.

[0026] Specifically, when the filter bag needs to be put on the cage, first pull the upper fixing belt 1 and put the upper fixing belt 1 on the cage. After the putting is completed, first wrap the strap 10 and the strap 2 11 on the cage, and fix them with Velcro 15 to fix the spacing belt 3 on the cage. After the fixation is completed, continue to adjust the position of the pleated bag body 4. After the adjustment is completed, wrap the upper and lower side wrapping fixing belts 6 and fix them on the upper part of the cage. After the fixation is completed, align and fit the ends of the zipper 7, and pass the other end of the zipper 7 through the zipper head 8. Pull the zipper head 8 to close the wrapping fixing belt 6. At this time, the top of the cage can be fixed to the upper fixing belt 1, and the upper fixing belt 1 can be prevented from rotating on the cage with the limit of the anti-slip rubber pad 2 9.

[0027] As an optimization solution, Figure 3 and Figure 4 As shown, sealing gasket belts 13 are fixed on the inner walls of the upper and lower ends of the lower fixing belt 2, and a sealing filter cloth 14 is arranged between the upper and lower sealing gasket belts 13. The width of the Velcro 15 on the upper and lower sides of the edge of the sealing filter cloth 14 and the edge of the sealing gasket belt 13 are the same, and the Velcro 15 on the inner sides of the upper and lower sealing gasket belts 13 are respectively parent-child surfaces, the upper and lower sides of the edge of the sealing filter cloth 14 and the edge of the sealing gasket belt 13 are the same, and the Velcro 15 on the inner sides of the upper and lower sealing gasket belts 13 are respectively parent-child surfaces, Velcro 15 is fixed on the upper and lower ends of the edge of the sealing filter cloth 14, and another Velcro 15 is fixed on the upper and lower ends of the edge of the sealing filter cloth 14, the top surface of the sealing filter cloth 14 is bonded and fixed to the bottom surface of the upper sealing gasket belt 13, and the Velcro 15 on the bottom surface of the sealing filter cloth 14 is bonded and fixed to the top surface of the lower sealing gasket belt 13.

[0028] Specifically, when it is necessary to seal the bottom of the upper fixing belt 1, first insert the sealing filter cloth 14 between the upper and lower spacing belts 3 inside the lower fixing belt 2 to seal the inside of the pleated bag body 4. Press the edges of the sealing filter cloth 14 point by point to make the sealing pad belt 13 and the sealing filter cloth 14 firmly connected to maintain the internal sealing effect when the filter bag is in use. When the inside of the lower fixing belt 2 needs to be opened, pull the auxiliary drawstring 16 to separate the sealing filter cloth 14 from the sealing pad belt 13, and then the inside of the lower fixing belt 2 can be opened.

[0029] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0030] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A pleated filter bag for flue gas purification, comprising an upper fixing belt (1) and a pleated bag body (4), characterized in that: A lower fixing belt (2) is arranged below the upper fixing belt (1), a plurality of spacing belts (3) are arranged between the upper fixing belt (1) and the lower fixing belt (2), a pleated bag body (4) is fixed between each spacing belt (3) and between the spacing belt (3) and the upper fixing belt (1) and the lower fixing belt (2), an anti-skid rubber pad (5) is glued and fixed to the middle of the inner side of the upper fixing belt (1), and a wrapping fixing belt (6) is symmetrically wrapped around the outer side of the anti-skid rubber pad (5), the outer ends of the two wrapping fixing belts (6) are fixed to the inner wall of the upper fixing belt (1), the opposite ends of the two wrapping fixing belts (6) are fixed by a zipper (7), and the zipper (7) is arranged to be bidirectionally openable, and a zipper head (8) is arranged at one end of the zipper (7); A plurality of straps 1 (10) are fixed at equal intervals on the upper part of the side of the spacing belt (3) away from the upper fixing belt (1), and straps 2 (11) are fixed on the spacing belt (3) below the straps 1 (10), Velcro (15) is fixed on the bottom sides of the straps 1 (10) and the straps 2 (11), and a non-slip rubber sleeve (12) is fixed at the corner of the top surface of the lower fixing belt (2).

2. The pleated filter bag for flue gas purification according to claim 1, characterized in that: Sealing pads (13) are fixed to the inner walls of the upper and lower ends of the lower fixing band (2), a sealing filter cloth (14) is arranged between the upper and lower sealing pads (13), Velcro (15) is fixed to the upper and lower ends of the edge of the sealing filter cloth (14), and another Velcro (15) is fixed to the upper and lower ends of the edge of the sealing filter cloth (14).

3. The pleated filter bag for flue gas purification according to claim 1, characterized in that: Both ends of the zipper (7) are configured to be detachable, the height of the zipper head (8) is smaller than the height inside the upper fixing belt (1), and the thickness inside the wrapping fixing belt (6) is greater than the thickness of the anti-slip rubber pad (5).

4. The pleated filter bag for flue gas purification according to claim 1, characterized in that: The inner side of the spacing band (3) between each group of the first strap (10) and the second strap (11) is glued and fixed with the second anti-skid rubber pad (9), and the length of the second anti-skid rubber pad (9) is greater than the length of the first strap (10) and the second strap (11).

5. The pleated filter bag for flue gas purification according to claim 2, characterized in that: The width of the Velcro (15) on the upper and lower sides of the edge of the sealing filter cloth (14) and the edge of the sealing gasket belt (13) is the same, and the Velcro (15) on the inner side of the upper and lower sealing gasket belts (13) are respectively parent and child surfaces.

6. The pleated filter bag for flue gas purification according to claim 2, characterized in that: An auxiliary drawstring (16) is symmetrically fixed to the bottom surface of the sealing filter cloth (14) inside the lower sealing pad belt (13), and the thickness of the auxiliary drawstring (16) is smaller than the thickness between the bottom surface of the sealing filter cloth (14) and the bottom surface of the lower fixing belt (2).

7. The pleated filter bag for flue gas purification according to claim 2, characterized in that: The top surface of the sealing filter cloth (14) is bonded and fixed to the bottom surface of the upper sealing pad belt (13), and the Velcro (15) on the bottom surface of the sealing filter cloth (14) is bonded and fixed to the top surface of the lower sealing pad belt (13).

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