CN113663431A - Double-pleat-number multi-combination type pleated filter bag frame and filtering device - Google Patents
Double-pleat-number multi-combination type pleated filter bag frame and filtering device Download PDFInfo
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- CN113663431A CN113663431A CN202111072711.6A CN202111072711A CN113663431A CN 113663431 A CN113663431 A CN 113663431A CN 202111072711 A CN202111072711 A CN 202111072711A CN 113663431 A CN113663431 A CN 113663431A
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- 238000001914 filtration Methods 0.000 title claims abstract description 13
- 239000000428 dust Substances 0.000 abstract description 15
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/06—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat
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Abstract
The invention discloses a double-fold-number multiple combined type pleated filter bag frame and a filtering device, which comprise an upper bag cage, a lower bag cage and a connecting assembly, wherein the upper bag cage is connected with the lower bag cage through the connecting assembly; the upper bag cage and the lower bag cage are connected through the tenon-and-mortise structure, the tenon-and-mortise are matched to form an elastic frame, so that the assembly and disassembly are convenient, and meanwhile, the component connection mode of the tenon-and-mortise structure has special flexibility compared with the conventional steel frame, so that the component connection mode not only can bear larger load, but also allows certain deformation to be generated when the filter bag is used for pulse dust removal, the local pressure can be transmitted, and the uniform pressure distribution is ensured.
Description
Technical Field
The invention relates to the technical field of industrial dust removal equipment, in particular to a double-pleat-number multiple-combination type pleated filter bag frame and a filtering device.
Background
The bag type dust collector is important equipment for controlling dust emission in the industrial field, the circular cloth bag can not break through the problems of high emission, high bag breaking rate, large equipment occupied area and the like, and the pleated filter bag is produced by transportation. The pleated filter bag is also called a star-shaped dust removal filter bag, the pleated filter bag increases the filtering area by utilizing a pleated structure, can effectively reduce the rising speed of air flow under the same air quantity, is favorable for dust settling, and is suitable for dust removal in industrial environments such as cement, blast furnace ore tanks and the like.
The pleated filter bag is a dust removal filter bag which can be applied to a pulse bag type dust remover, and under the action of suction filtration of a fan and pulse dust removal, the rigid filter bag frame causes uneven pressure distribution on the filter bag, so that local positions of the filter bag are easy to wear and the dust removal is not good.
In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.
Disclosure of Invention
In order to solve the technical defects, the invention adopts the technical scheme that a double-fold-number multiple combined type fold filter bag frame is provided and comprises an upper bag cage, a lower bag cage and a connecting assembly, wherein the upper bag cage is connected with the lower bag cage through the connecting assembly, the connecting assembly comprises a first circular ring plate and a second circular ring plate, the first circular ring plate is fixedly arranged on the upper bag cage, and the second circular ring plate is connected with the lower bag cage;
a plurality of L-shaped clamping grooves are annularly and uniformly distributed on the first circular plate, each clamping groove comprises a through part and a clamping part, the cross section of the through part is rectangular, the through part is formed by extending the horizontal surface of the first circular plate to the inside of the first circular plate, so that a rectangular notch is formed on the horizontal surface of the first circular plate, the clamping part is arranged inside the first circular plate, and one side of the through part is communicated with the through part;
a plurality of L-shaped clamping blocks are annularly and uniformly distributed on the second circular plate, each clamping block comprises a connecting part and a fixing part, each fixing part is a cuboid, and the cuboid is fixedly connected with the horizontal surface of the second circular plate through the connecting part; the clamping block is arranged in the clamping groove;
the upper bag cage and the lower bag cage are both provided with cages, each cage comprises a plurality of L-shaped support rods and a first connecting column, the first circular ring plate and the second circular ring plate are coaxially arranged, two ends of each L-shaped support rod are fixedly connected to the first connecting column and the first circular ring plate respectively, and the L-shaped support rods are annularly and uniformly distributed around the first connecting column and the first circular ring plate; the number of the L-shaped supporting rods on the lower bag cage is less than that of the L-shaped supporting rods on the upper bag cage.
Preferably, the length of the rectangular notch is greater than or equal to the length of the fixing part, and the width of the rectangular notch is greater than or equal to the width of the fixing part.
Preferably, the first circular ring plate is further provided with a fixing groove corresponding to the passing part, and the fixing groove extends from the outer circular surface of the first circular ring plate to the passing part and is communicated with the passing part; the outer circular surface of the second circular ring plate is provided with fixing holes, the fixing grooves correspond to the fixing holes one to one, and the fixing grooves are connected with the fixing holes through fasteners.
Preferably, the fastener comprises a locking block and a connecting plate, a locking hole is formed in the connecting plate, and the locking hole and the locking block are respectively arranged at two ends of the connecting plate.
Preferably, the locking hole is a through hole, the fixing hole is a threaded hole, and a locking bolt passes through the locking hole and is in threaded connection with the fixing hole; the cross section of the fixing groove and the cross section of the locking block are both square, the cross section of the fixing groove and the cross section of the locking block are correspondingly arranged in size, and the locking block is inserted in the fixing groove.
Preferably, a second connecting column is arranged in the second circular plate, the second connecting column is fixedly arranged at the center of the second circular plate through a plurality of connecting rods, the first connecting column and the second connecting column are coaxially arranged, first connecting holes are formed in the first connecting column and the second connecting column, and two first connecting holes are coaxially arranged in the first connecting column and the second connecting column.
Preferably, the connecting assembly further comprises a connecting bolt and a conical block, the conical block is set to be of a conical structure, a second connecting hole is formed in the bottom plane of the conical block, the bottom plane of the conical block is arranged on the first connecting column in a fit mode through the connecting bolt, the second connecting hole is set to be a threaded hole, and the connecting bolt sequentially penetrates through the second connecting column and the first connecting hole in the first connecting column and is in threaded connection with the second connecting hole.
Preferably, a filter device comprises the double-pleat-number multi-combination-type pleated filter bag frame and a double-pleat-number pleated filter bag, wherein the double-pleat-number pleated filter bag comprises an upper half pleated filter bag and a lower half pleated filter bag, the upper bag cage supports and fixes the upper half pleated filter bag, and the lower bag cage supports and fixes the lower half pleated filter bag; the upper half pleated filter bag and the lower half pleated filter bag are connected and fixed through the upper bag cage, the lower bag cage and the connecting component to form the double-pleat-number pleated filter bag.
Preferably, the number of pleats of the upper half-pleated filter bag is different from the number of pleats of the lower half-pleated filter bag.
Preferably, the number of pleats of the upper half pleated filter bag corresponds to the number of the L-shaped support rods of the upper bag cage, one end of the upper half pleated filter bag is provided with a plurality of round holes, and the round holes correspond to the fixing holes of the second circular ring plate in position one to one; the number of pleats of the lower half pleated filter bag corresponds to the number of the L-shaped support rods of the lower bag cage, one end of the lower half pleated filter bag is provided with a plurality of square holes, and the square holes correspond to the fixing grooves of the first circular ring plate in position one to one.
Compared with the prior art, the invention has the beneficial effects that: the upper bag cage and the lower bag cage are connected through the tenon-and-mortise structure, the tenon-and-mortise are matched to form an elastic frame, so that the assembly and disassembly are convenient, and meanwhile, the component connection mode of the tenon-and-mortise structure has special flexibility compared with the conventional steel frame, so that the component connection mode not only can bear larger load, but also allows certain deformation to be generated when the filter bag is used for pulse dust removal, the local pressure can be transmitted, and the uniform pressure distribution is ensured.
Drawings
FIG. 1 is a structural view of the double-pleat-number multi-combined pleated filter bag frame;
FIG. 2 is a structural view of the upper bag cage;
FIG. 3 is a structural view of the lower bag cage;
FIG. 4 is a structural view of the second annular plate;
FIG. 5 is a schematic view of the clamping of the first annular plate and the second annular plate;
FIG. 6 is a structural view of the snap groove;
FIG. 7 is a structural view of the clamping block;
FIG. 8 is a view of the arrangement structure of the conical block;
FIG. 9 is a structural view of the conical block;
FIG. 10 is a structural view of the fastener;
FIG. 11 is a view of the arrangement of the fastener;
FIG. 12 is an exploded view of the double pleat number multiple combination pleated filter bag frame;
fig. 13 is a view showing the arrangement structure of the filter device.
The figures in the drawings represent:
1-putting into a bag cage; 2-placing a bag cage; 3-connecting the components; 4-a fastener; 5-locking the bolt; 6-upper half pleated filter bag; 7-lower pleated filter bag; 11-L-shaped support rods; 12-a first connecting post; 31-a first annular plate; 32-a second annular plate; 33-connecting bolts; 34-a conical block; 41-a locking block; 42-a connecting plate; 43-locking hole; 61-round holes; 71-square hole; 311-a card slot; 312-a fixation slot; 321-a clamping block; 322-fixing holes; 323-a second connecting column; 341-second connection hole.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1, 2 and 3, fig. 1 is a structural view of the pleated filter bag frame with multiple double pleats; FIG. 2 is a structural view of the upper bag cage; fig. 3 is a structural view of the lower bag cage.
The double-fold-number multiple combined type pleated filter bag frame comprises an upper bag cage 1, a lower bag cage 2 and a connecting assembly 3, wherein the upper bag cage 1 is connected with the lower bag cage 2 through the connecting assembly 3, the connecting assembly 3 comprises a first circular plate 31 and a second circular plate 32, the first circular plate 31 is fixedly arranged on the upper bag cage 1, the second circular plate 32 is connected with the lower bag cage 2, and the first circular plate 31 is detachably connected with the second circular plate 32 in a one-to-one correspondence mode, so that the upper bag cage 1 is connected with the lower bag cage 2.
As shown in fig. 4 and 5, fig. 4 is a structural view of the second annular plate; fig. 5 is a schematic clamping diagram of the first circular plate and the second circular plate.
Specifically, the annular equipartition has a plurality of joint grooves 311 on the first ring board 31, the annular equipartition has a plurality of joint pieces 321 on the second ring board 32, joint groove 311 sets up to L type groove, joint piece 321 sets up to L type piece, joint groove 311 with joint piece 321 one-to-one sets up, through inciting somebody to action joint piece 321 sets up thereby realize in the joint groove 311 first ring board 31 with the joint of second ring board 32 is fixed.
As shown in fig. 6, fig. 6 is a structural view of the catching groove; preferably, the clamping groove 311 includes a through portion and a clamping portion, the cross section of the through portion is configured as a rectangle, and the horizontal surface of the first circular plate 31 extends towards the inside of the first circular plate 31 to form a rectangular notch on the horizontal surface of the first circular plate 31, the clamping portion is configured inside the first circular plate 31, and one side of the through portion is communicated with the through portion.
As shown in fig. 7, fig. 7 is a structural view of the clamping block; the joint piece 321 includes connecting portion and fixed part, the fixed part sets up to the cuboid, just the cuboid passes through connecting portion with the horizontal surface fixed connection of second ring board 32.
Preferably, the length of the rectangular notch is greater than or equal to the length of the fixing portion, and the width of the rectangular notch is greater than or equal to the width of the fixing portion, so that the fixing portion can enter the inside of the clamping groove 311 through the rectangular notch. Through first ring plate 31 with the relative rotation of second ring plate 32 makes the fixed part with thereby joint portion forms the joint and realizes first ring plate 31 with the joint of second ring plate 32 is fixed.
The upper bag cage and the lower bag cage 2 are connected through the tenon-and-mortise structure, the tenon-and-mortise are matched to form an elastic frame, so that the assembly and disassembly are convenient, and meanwhile, the component connection mode of the tenon-and-mortise structure has special flexibility compared with the conventional steel frame, so that the component connection mode not only can bear larger load, but also allows certain deformation to be generated when the filter bag is used for pulse dust removal, the local pressure can be transmitted, and the uniform pressure distribution is ensured.
Example two
As shown in fig. 10 and 11, fig. 10 is a structural view of the fastener; FIG. 11 is a view of the arrangement of the fastener; the first annular plate 31 is further provided with a fixing groove 312 corresponding to the passing portion, and the fixing groove 312 extends from the outer circumferential surface of the first annular plate 31 to the passing portion and is communicated with the passing portion. The outer circular surface of the second circular ring plate 32 is provided with a fixing hole 322, the fixing groove 312 and the fixing hole 322 are correspondingly arranged one by one, and the fixing groove 312 and the fixing hole 322 are connected through a fastening member 4.
Specifically, the fastening member 4 includes a locking block 41 and a connecting plate 42, a locking hole 43 is formed in the connecting plate 42, and the locking hole 43 and the locking block 41 are respectively disposed at two ends of the connecting plate 42.
Generally, the locking hole 43 is a through hole, the fixing hole 322 is a threaded hole, and the locking bolt 5 passes through the locking hole 43 to be threadedly coupled with the fixing hole 322, thereby achieving coupling of the end of the fastening member 4 and the second annular plate 32.
The cross section of the fixing groove 312 and the cross section of the locking block 41 are both set to be square, the cross section of the fixing groove 312 and the cross section of the locking block 41 are correspondingly set in size, the locking block 41 is inserted into the fixing groove 312, so that the end of the fastener 4 is connected with the first circular plate 31, and meanwhile, the locking block 41 extends to the inside of the passing part, so that the limiting of the clamping block 321 is realized, and the clamping groove 311 is avoided from being separated from the clamping groove 311.
Generally, the length of the side of the cross section of the fixing groove 312 is half of the width of the passing part.
EXAMPLE III
Go up bag cage 1 bag cage 2 all is provided with the cage down, the cage includes a plurality of L shape bracing pieces 11 and first spliced pole 12, first spliced pole 12 with first ring board 31 the coaxial setting of second ring board 32, the both ends difference fixed connection of L shape bracing piece 11 first spliced pole 12 with on the first ring board 31, just L shape bracing piece 11 winds first spliced pole 12 first ring board 31 annular equipartition to form the support cage body of class cylindricality.
A second connecting column 323 is arranged in the second circular plate 32, the second connecting column 323 is fixedly arranged at the center of the second circular plate 32 through a plurality of connecting rods, the first connecting column 12 and the second connecting column 323 are coaxially arranged, first connecting holes are formed in the first connecting column 12 and the second connecting column 323, and the first connecting holes are coaxially arranged in the first connecting column 12 and the second connecting column 323.
As shown in fig. 8 and 9, fig. 8 is a structural view of the conical block; FIG. 9 is a structural view of the conical block; the connecting assembly 3 further comprises a connecting bolt 33 and a conical block 34, the conical block 34 is set to be of a conical structure, a second connecting hole 341 is formed in the plane of the bottom of the conical block 34, the plane of the bottom of the conical block 34 is attached to the first connecting column 12 through the connecting bolt 33, the second connecting hole 341 is set to be a threaded hole, and the connecting bolt 33 sequentially penetrates through the second connecting column 323 and the first connecting column 12, the first connecting hole is formed in the first connecting column 12, and the second connecting hole 341 is in threaded connection with the second connecting hole, so that the second circular ring plate 32 is fixedly connected with the cages.
The conical surface of the conical block 34 faces upwards to the bag opening of the upper bag cage 1.
FIG. 12 is an exploded view of the double-fold-number multi-combined pleated filter bag frame, as shown in FIG. 12; the L-shaped support rods 11 of the cage frame are fixedly connected around the connecting column to form a support cage body, and the other ends of the support rods are fixedly connected along the inner annular surface of the first circular plate 31 to form a stable rigid bag cage; the bag cage is simple in structure, saves materials, has no redundant structure inside, and reduces the dust removal difficulty of the filter bag.
Meanwhile, the inner cone is arranged in the filter bag, and high-pressure pulse jet flows through the inner cone before reaching the bottom of the filter bag, so that pulse airflow can be diffused all around in advance, the radial speed of the jet flow is increased, and the dust removal of the middle lower half part of the pleated filter bag is facilitated.
Example four
Fig. 13 is a view showing the arrangement structure of the filter device; the filter device comprises the double-pleat-number multi-combined-type pleated filter bag frame and a double-pleat-number pleated filter bag, the double-pleat-number pleated filter bag comprises an upper half pleated filter bag 6 and a lower half pleated filter bag 7, the upper bag cage 1 supports and fixes the upper half pleated filter bag 6, and the lower bag cage 2 supports and fixes the lower half pleated filter bag 7; the upper half pleated filter bag 6 and the lower half pleated filter bag 7 are connected and fixed through the upper bag cage 1, the lower bag cage 2 and the connecting assembly 3 to form the double-pleat-number pleated filter bag.
The number of pleats of the upper half-pleated filter bag 6 and the number of pleats of the lower half-pleated filter bag 7 are different.
Generally, the number of pleats of the upper half pleated filter bag 6 corresponds to the number of the L-shaped support rods 11 of the upper bag cage 1, one end of the upper half pleated filter bag 6 is provided with a plurality of round holes 61, and the round holes 61 correspond to the positions of the fixing holes 322 of the second circular ring plate 32 one by one; the number of pleats of the lower pleated filter bag 7 corresponds to the number of the L-shaped support rods 11 of the lower bag cage 2, one end of the lower pleated filter bag 7 is provided with a plurality of square holes 71, and the square holes 71 correspond to the positions of the fixing grooves 312 of the first circular ring plate 31 one by one.
The number of the L-shaped support rods 11 on the lower bag cage 2 is less than that of the L-shaped support rods 11 on the upper bag cage 1, so the number of pleats of the upper half pleated filter bag 6 is greater than that of the lower half pleated filter bag 7.
The double-pleat-number pleat type filter bag can realize flexible combination of multiple pleat numbers, the number of pleats of the upper half part of the double-pleat-number pleat type filter bag is more than that of the lower half part of the double-pleat-number pleat type filter bag, and the filter areas of the double-pleat-number pleat type filter bags in different combinations are different. The structure enables the filtering area of the upper half part of the filter bag to be increased along with the increase of the number of the pleats, and solves the problems that the pressure drop generated by the part close to the outlet of the filter bag is large, the distribution of the filtering resistance in the axial direction of the filter bag is not uniform and the like during filtering, so that the filtering resistance of the upper part of the filter bag is reduced, the distribution of the integral filtering resistance is balanced, and the integral filtering resistance of the filter bag is reduced.
Meanwhile, the upper bag cage 2 and the lower bag cage 2 have the same structure except that the corresponding filter bag pleats are different, so that the lower bag cage 2 can be changed into the upper bag cage 1 for use, and the upper bag cage and the lower bag cage 2 with fewer pleats form a new upper-lower double-pleat-count bag cage. The upper bag cage 1 can also be changed into a lower bag cage 2 for use, and the upper bag cage 1 with more folds forms a new upper and lower double-fold bag cage. The upper bag cage and the lower bag cage 2 can be flexibly combined and are convenient to assemble in combination with practical application.
Each component can be repeatedly assembled and used, the cost caused by secondary production is reduced, and the structure is simple, the assembly is flexible, the design is reasonable, the manufacture is easy, and the like.
The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The double-fold-number multi-combined-type pleated filter bag frame is characterized by comprising an upper bag cage, a lower bag cage and a connecting assembly, wherein the upper bag cage is connected with the lower bag cage through the connecting assembly, the connecting assembly comprises a first circular ring plate and a second circular ring plate, the first circular ring plate is fixedly arranged on the upper bag cage, and the second circular ring plate is connected with the lower bag cage;
a plurality of L-shaped clamping grooves are annularly and uniformly distributed on the first circular plate, each clamping groove comprises a through part and a clamping part, the cross section of the through part is rectangular, the through part is formed by extending the horizontal surface of the first circular plate to the inside of the first circular plate, so that a rectangular notch is formed on the horizontal surface of the first circular plate, the clamping part is arranged inside the first circular plate, and the clamping part is arranged on one side of the through part and communicated with the through part;
a plurality of L-shaped clamping blocks are annularly and uniformly distributed on the second circular plate, each clamping block comprises a connecting part and a fixing part, each fixing part is a cuboid, and the cuboid is fixedly connected with the horizontal surface of the second circular plate through the connecting part; the clamping block is arranged in the clamping groove;
the upper bag cage and the lower bag cage are both provided with cages, each cage comprises a plurality of L-shaped support rods and a first connecting column, the first circular ring plate and the second circular ring plate are coaxially arranged, two ends of each L-shaped support rod are fixedly connected to the first connecting column and the first circular ring plate respectively, and the L-shaped support rods are annularly and uniformly distributed around the first connecting column and the first circular ring plate; the number of the L-shaped supporting rods on the lower bag cage is less than that of the L-shaped supporting rods on the upper bag cage.
2. The double-fold-number-multiple-combination pleated filter bag frame of claim 1, wherein the length of the rectangular notch is greater than or equal to the length of the fixing part, and the width of the rectangular notch is greater than or equal to the width of the fixing part.
3. The double-fold-number-multiple-combination-type pleated filter bag frame of claim 1, wherein the first circular ring plate is further provided with fixing grooves corresponding to the passing part, the fixing grooves extending from the outer circumferential surface of the first circular ring plate to the passing part and communicating with the passing part; the outer circular surface of the second circular ring plate is provided with fixing holes, the fixing grooves correspond to the fixing holes one to one, and the fixing grooves are connected with the fixing holes through fasteners.
4. The double-fold-number-multiple-combination pleated filter bag frame of claim 3, wherein the fastening member comprises a locking block and a connecting plate, the connecting plate is provided with a locking hole, and the locking hole and the locking block are respectively arranged at two ends of the connecting plate.
5. The double-fold-number-multiple-combination pleated filter bag frame of claim 4, wherein the locking holes are provided as through holes, the fixing holes are provided as threaded holes, and locking bolts are threaded through the locking holes and the fixing holes; the cross section of the fixing groove and the cross section of the locking block are both square, the cross section of the fixing groove and the cross section of the locking block are correspondingly arranged in size, and the locking block is inserted in the fixing groove.
6. The double-fold-number-multiple-combination pleated filter bag frame of claim 1, wherein a second connecting column is arranged in the second circular plate, the second connecting column is fixedly arranged at the center of the second circular plate through a plurality of connecting rods, the first connecting column and the second connecting column are coaxially arranged, a first connecting hole is arranged on each of the first connecting column and the second connecting column, and two first connecting holes are coaxially arranged on the first connecting column and the second connecting column.
7. The double-fold-number-multiple-combination pleated filter bag frame of claim 6, wherein the connecting assembly further comprises a connecting bolt and a conical block, the conical block is arranged in a conical structure, a second connecting hole is formed in the bottom plane of the conical block, the bottom plane of the conical block is arranged on the first connecting column in a fit manner through the connecting bolt, the second connecting hole is arranged in a threaded hole, and the connecting bolt sequentially penetrates through the second connecting column and the first connecting hole in the first connecting column and is in threaded connection with the second connecting hole.
8. A filter apparatus comprising the double-pleat-multiple-combination-pleated filter bag frame of any one of claims 1 to 7 and a double-pleat-pleated filter bag comprising an upper half-pleated filter bag and a lower half-pleated filter bag, the upper bag cage supporting and securing the upper half-pleated filter bag and the lower bag cage supporting and securing the lower half-pleated filter bag; the upper half pleated filter bag and the lower half pleated filter bag are connected and fixed through the upper bag cage, the lower bag cage and the connecting component to form the double-pleat-number pleated filter bag.
9. The filtration apparatus of claim 8, wherein the number of pleats of the top half pleated filter bag is different from the number of pleats of the bottom half pleated filter bag.
10. The filtering apparatus as claimed in claim 8, wherein the number of pleats of the upper half pleated filter bag corresponds to the number of the L-shaped support rods of the upper bag cage, and one end of the upper half pleated filter bag is provided with a plurality of circular holes corresponding to the fixing holes of the second circular ring plate in one-to-one correspondence; the number of pleats of the lower half pleated filter bag corresponds to the number of the L-shaped support rods of the lower bag cage, one end of the lower half pleated filter bag is provided with a plurality of square holes, and the square holes correspond to the fixing grooves of the first circular ring plate in position one to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072711.6A CN113663431A (en) | 2021-09-13 | 2021-09-13 | Double-pleat-number multi-combination type pleated filter bag frame and filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111072711.6A CN113663431A (en) | 2021-09-13 | 2021-09-13 | Double-pleat-number multi-combination type pleated filter bag frame and filtering device |
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| Publication Number | Publication Date |
|---|---|
| CN113663431A true CN113663431A (en) | 2021-11-19 |
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| CN202111072711.6A Pending CN113663431A (en) | 2021-09-13 | 2021-09-13 | Double-pleat-number multi-combination type pleated filter bag frame and filtering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115554779A (en) * | 2022-07-15 | 2023-01-03 | 抚顺天宇滤材有限公司 | Internal filtering type wave-shaped folded filter bag |
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