CN102794067B - Device and method for fixing filter bag of bag-type filter - Google Patents
Device and method for fixing filter bag of bag-type filter Download PDFInfo
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- CN102794067B CN102794067B CN201210238678.4A CN201210238678A CN102794067B CN 102794067 B CN102794067 B CN 102794067B CN 201210238678 A CN201210238678 A CN 201210238678A CN 102794067 B CN102794067 B CN 102794067B
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- filter bag
- pressure pipe
- elastic ring
- fixing
- cage bone
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Abstract
The invention provides a device and a method for fixing a filter bag (5) of a bag-type filter. The device comprises a tube plate (1) provided with an installation hole (6), and an elastic ring (2); the elastic ring (2) is coaxially located in the installation hole (6) and radially extruded; the filter bag (5) is provided with an opening in an axial direction, and the periphery of the opening is clamped between the elastic ring (2) and the tube plate (1); the bag-type filter further comprises a cage rib (4) for supporting the filter bag (5); the device for fixing the filter bag (5) further comprises a press tube (3); the cage rib (4) extends and penetrates through the press tube (3); at least a part of the press tube (3) extends and enters in the inner side of the elastic ring (2) in the installation hole (6), and the press tube (3) extrudes the elastic ring (2) via the insertion of the cage rib (4), thus fixing the filter bag (5). The device for fixing the filter bag of the bag-type filter has the characteristics of being good in fixing effect, simple in structure, easy in installation, and low in cost.
Description
Technical field
The present invention relates to gas filtration technology, particularly for device for fixing filter bag and the method for bag filter.
Background technology
Bag filter is widely used in gas filtration field, such as coal dust bag filter, sack cleaner etc.Existing bag filter for example comprises the coal dust bag filter in the gasification installation that Shell Co. Ltd produces, its as coal powder collection equipment for collect coal dust when gasification installation moves.In this coal dust bag filter, filter bag is as filtering material, containing the pumped (conveying) medium of coal dust for example nitrogen be blown in filter bag, after filter bag filters, nitrogen is separated with coal dust.Then, by purge gas, filter bag coal dust is removed, thereby realize continuously, produced.Bag filter comprises the filter bag of One's name is legion conventionally, and in the middle of filter bag, is provided with for making filter bag keep the cage bone launching at air-flow.Filter bag is made by textile fiber material or other similar material conventionally, and is fixed on the tube sheet of equipment.
In some prior aries, Chinese utility model patent CN201701826 for example, its device for fixing filter bag providing comprises bolt and rubber blanket.Filter bag is between cage bone and rubber blanket, and rubber blanket, between filter bag and tube sheet, is offered the fixing hole of centering on cage bone and tube sheet, and bolt after tightening through fixing hole is fixedly clamped filter bag.The cost of this fixture is higher, and technology difficulty is larger.And because this fixture concentrates on the installed position of bolt to the fixation power of filter bag, the stress distribution of filter bag is uneven, easily causes filter bag wearing and tearing or tear.
In other prior aries, for example, coal powder collection equipment in a kind of gasification installation that Shell Co. Ltd produces, device for fixing filter bag wherein comprises elastic ring and the filter bag reinforcement in filter bag.In the process of filter bag is installed, installation personnel, with the hands by elastic ring crimp, recovers shape by elasticity after elastic ring puts in place, simultaneously and filter bag reinforcement together filter bag is fixed on the installing hole of tube sheet, thereby the installation that completes filter bag is fixed.This device for fixing filter bag utilizes the elasticity of elastic ring, in whole week, upwards filter bag is applied to radial pressure equably, active area is larger, avoided stress to concentrate and the breakage that causes, and structure is comparatively simple, without tube sheet and cage bone are carried out to special processing.But the shortcoming of this device for fixing filter bag is that filter bag easily comes off.Because filter bag length is long, be subject to the impact of air-flow in equipment, filter bag is very large at device interior rocking tendency, causes stressed very inhomogeneous in tube sheet bearing of filter bag.There is the distortion or the depression that because of unbalance stress, produce, the installing hole of can not fitting completely in this elastic ring that easily makes to be pressed against in tube sheet.As long as there is distortion on a point, fixing on installing hole of whole elastic ring will lose efficacy and get loose and cause filter bag to come off.It is this coal powder collection equipment common fault when stable operation that filter bag comes off, as long as there is a filter bag to occur coming off, equipment just can not normally move.After filter bag comes off, people need access arrangement that the filter bag coming off is taken out, and reinstall or change filter bag.The hazards of this operation are many, and it is large that safety measure is implemented difficulty, and length expends time in.Therefore to come off be this gasification installation of restriction difficult problem of stable operation " long, full, excellent " to filter bag.
In order to prevent that the filter bag in this equipment from coming off, someone expects, by elastic ring is thickeied or filter bag reinforcement is thickeied, making cage bone can compress filter bag after installation, thereby improving the fixed effect of filter bag in this equipment.But, because elastic ring is made by having certain flexible metal material conventionally, its thickness increases and will the rigidity of elastic ring be increased, thereby make the difficulty that filter bag is installed increase a lot, and the plasticity that may cause elastic ring strengthens, elasticity weakens, thereby likely cannot recover equably shape after crimp, cannot produce uniform elastic force.If increase the thickness of filter bag reinforcement, likely make reinforcement extruding elastic ring, the shape while causing elastic ring normally to be worked deforms.As previously mentioned, the form fit of elastic ring its shape and installing hole after installation, will cause filter bag gas leakage or come off if deformed.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of device for fixing filter bag of bag filter, can improve the fixed effect of filter bag, prevent that filter bag from coming off, and simple in structure, with low cost.
For achieving the above object, a scheme of the present invention is to provide a kind of device for fixing filter bag of bag filter, comprises tube sheet and the elastic ring with installing hole.Elastic ring is positioned at coaxially installing hole and is subject to radial compression.Filter bag axially has an opening, and the periphery of opening is clamped between elastic ring and tube sheet.Bag filter also comprises the cage bone that supports filter bag.Wherein, device for fixing filter bag also comprises pressure pipe.Cage bone extends through pressure pipe.At least a portion pressure pipe extends into elastic ring in installing hole inner side, makes pressure pipe pass through the insertion extruding elastic ring of cage bone, thus fixing filter bag.Whereby, by pressure pipe, against elastic ring inner side, contribute to prevent that elastic ring distortion from getting loose, can strengthen fixed effect, prevent that filter bag from coming off, and can not change elastic ring to the fixing uniformity of elastic force of filter bag.
According to a scheme of the present invention, pressure pipe is integrally formed on cage bone.
According to a scheme of the present invention, at least a portion outer wall of pressure pipe in axial direction upwards gradually diametrically near and cross the inwall of elastic ring.This can adjust by changing axial location pressure pipe to radial pressure, and can prevent that pressure pipe is from the installing hole landing of tube sheet.
According to a scheme of the present invention, the upper surface of pressure pipe is subject to the downward axial compressive force of cage bone after installation in position.This is conducive to make pressure pipe keep to compress, and prevents that pressure pipe from the inefficacy that deformation to a certain degree causes occurring because of each parts of device for fixing filter bag.
According to a scheme of the present invention, pressure pipe comprises respectively first paragraph and second segment vertically, and the external diameter of first paragraph remains unchanged vertically, and the external diameter of second segment is increasing gradually along upward direction.Preferably, the external diameter of second segment is linear increase vertically, so that manufacture.More preferably, the angle that second segment and first paragraph form on the vertical section of pressure pipe is about 170 degree.
According to a scheme of the present invention, portion's section that several separate, that extend vertically that pressure pipe comprises, has gap between these sections after pressure pipe installation in position.This makes people when this pressure pipe is installed, and can only cage bone be mentioned to a bit of distance, and for example 0.2 meter, then each section of hand-held pressure pipe leans against its spelling the cage bone outer wall exposing, more together enters in installing hole with cage bone.This mounting means is without elongated cage bone is extracted out completely, thereby is very easy to the installation of pressure pipe.The setting in gap, occurs staggered between each section after being conducive to prevent install.Preferably, pressure pipe comprises two equal and opposite in directions, portion's section that shape is identical, and this is convenient to manufacture and carry out bimanualness.
Another object of the present invention is to provide a kind of filter bag fixing means of bag filter, can improve the fixed effect of filter bag, prevents that filter bag from coming off, and the method process is simple, with low cost.
For realizing this purpose, a scheme of the present invention is to provide a kind of filter bag fixing means of bag filter, and filter bag axially has an opening, and the method comprises: tube sheet, elastic ring and the cage bone with installing hole are provided; Elastic ring is located at coaxially in installing hole and is made elastic ring be subject to radial compression, so that the periphery of filter pocket openings is clamped between elastic ring and tube sheet; Pressure pipe is provided, and cage bone extends through pressure pipe; Cage bone and pressure pipe are inserted in installing hole, made cage bone support filter bag, and make at least a portion pressure pipe enter the elastic ring inner side in installing hole, and make pressure pipe pass through the insertion extruding elastic ring of cage bone, thus fixing filter bag.
In a word, by adopting above technical scheme, the device for fixing filter bag of bag filter provided by the invention and the method fixedly distribution of forces of filter bag are even, be easy to install and manufacture, cost is lower, and the miniature deformation that each parts that can adapt to device for fixing filter bag occur, keeps filter bag to compress.
Accompanying drawing explanation
Below, describe by reference to the accompanying drawings specific embodiments of the invention in detail, identical mark represents same or similar member or structure, wherein:
Fig. 1 shows the longitudinal sectional view of the bag filter that is applicable to the present invention's one specific embodiment, for ease of comparing, shown in installing hole longitudinal axis left side, is being the device for fixing filter bag of a specific embodiment according to the present invention, and is being the example of a kind of device for fixing filter bag of the prior art shown in installing hole longitudinal axis right side;
Fig. 2 shows the longitudinal sectional view of the device for fixing filter bag of the bag filter of one specific embodiment according to the present invention in left side, for ease of relatively, show the longitudinal sectional view of example of the device for fixing filter bag of a kind of bag filter of the prior art on right side;
Fig. 3 is the longitudinal sectional view of the pressure pipe of one specific embodiment according to the present invention;
Fig. 4 is the transverse sectional view of the pressure pipe in Fig. 3;
The specific embodiment
The present invention provides a kind of filter bag 5 fixtures of bag filter generally, comprises tube sheet 1 and the elastic ring 2 with installing hole 6.Elastic ring 2 is positioned at coaxially installing hole 6 and is subject to radial compression.Filter bag 5 axially has an opening, and the periphery of opening is clamped between elastic ring 2 and tube sheet 1.This bag filter also comprises the cage bone 4 that supports filter bag 5.Wherein, filter bag 5 fixtures also comprise pressure pipe 3.Cage bone 4 extends through pressure pipe 3.At least a portion pressure pipe 3 extends into elastic ring 2 inner sides in installing hole 6, makes pressure pipe 3 by the insertion extruding elastic ring 2 of cage bone 4, thus fixing filter bag 5.
The present invention also provides a kind of filter bag 5 fixing means of bag filter generally, and filter bag 5 axially has an opening, and the method comprises: tube sheet 1, elastic ring 2 and the cage bone 4 with installing hole 6 are provided; Elastic ring 2 is located at coaxially in installing hole 6 and is made elastic ring 2 be subject to radial compression, so that the periphery of filter bag 5 openings is clamped between elastic ring 2 and tube sheet 1; Pressure pipe 3 is provided, and cage bone 4 extends through pressure pipe 3; Cage bone 4 and pressure pipe 3 inserted in installing holes, made cage bone 4 support filter bags 5, and make at least a portion pressure pipe 3 enter elastic ring 2 inner sides in installing hole 6, and make pressure pipe 3 by the insertion extruding elastic ring 2 of cage bone 4, thus fixing filter bag 5.
As shown in Figure 1, the applicable bag filter of a specific embodiment according to the present invention can be vertically to arrange, and the sack of filter bag 5 is positioned at installing hole 6 places on tube sheet 1, under bag dolly.Filter bag 5 is for example made by textile fiber material, and its shape is roughly elongated, cylindrical, and length L is for example 6 meters, and diameter is for example 0.18 meter.Filter bag 5 can be strutted by cage bone 4, so the shape of cage bone 4 is substantially similar to the shape of filter bag 5.The length of cage bone 4 is slightly less than the length L of filter bag 5, and the diameter of phi of cage bone 4 is slightly less than the diameter of filter bag 5, for example, be 0.16 meter.Cage bone 4 upper ends in the present embodiment can have top cover flange, and this top cover flange outer diameter is greater than the external diameter of installing hole 6, thereby cage bone 4 can be supported on tube sheet 1 by top cover flange.Carry impurity for example coal dust gas for example nitrogen can see through filter bag 5 along direction B from tube sheet 1 below and blow to tube sheet 1 top, the filtration by filter bag 5 is separated the coal dust in nitrogen from nitrogen, is attached to filter bag 5 surfaces or falls toward tube sheet 1 below.In order to remove the coal dust that is attached to filter bag 5 surfaces, make filter bag 5 can continue to bring into play filtration, will carry out a blowback to filter bag 5 at set intervals.In the present embodiment, nitrogen is blown into filter bag 5 inner sides from the anti-blowpipe 10 of cage bone 4 tops along direction A, and sweeps along the coal dust of filter bag 5 outer surfaces to leave filter bag 5 through filter bag 5.The air pressure of anti-blowpipe 10 interior nitrogen is for example 0.2 MPa, blowback frequency be for example every 5 minutes once.In filtration and blowback process, filter bag 5 and cage bone 4 often can shake.
For ease of relatively, in figure, shown in installing hole 6 longitudinal axis left sides, be filter bag 5 fixtures of a specific embodiment according to the present invention, and be the example of a kind of filter bag 5 fixtures of the prior art shown in installing hole 6 longitudinal axis right sides.
In the example of the prior art on figure right side, filter bag 5 has filter bag reinforcement 9 in sack position, and reinforcement 9 inner sides are enclosed with elastic ring 2.Elastic ring 2 can be to be for good and all connected on filter bag 5, and the mode now connecting can be bonding, stitching etc.; Also can before installation, connect filter bag 5 temporarily, the mode now connecting can be winding, jacket etc.Elastic ring 2 radially struts installing hole 6 inner sides on tube sheet 1, thereby filter bag 5 is clamped between elastic ring 2 and tube sheet 1.When mounted, people can enter in the installing hole 6 on tube sheet 1 it with the hands by elastic ring 2 crimps, then decontrol elastic ring 2 and make it recover shape, and elastic ring 2 just closely abuts on the inwall of installing hole 6, thereby realize the fixing of filter bag 5.
In this embodiment in figure left side, the difference of itself and above-mentioned prior art is, although filter bag 5 still has filter bag reinforcement 9 in sack position, be understandable that, device for fixing filter bag of the present invention can not comprise filter bag reinforcement 9.In addition, the top cover flange of elastic ring 2 inner sides and cage bone 4 is fitted with pressure pipe 3 between outside, thereby pressure pipe 3 is clamped between elastic ring 2 and cage bone 4.Be understandable that, this pressure pipe 3 can depart from cage bone 4 and play separately fixation.For example, this pressure pipe 3 is back taper pipe, the maximum gauge of this back taper pipe upper end can be greater than the diameter of installing hole 6, this conical pipe is inserted downwards after this installing hole 6 and can be clamped in this installing hole 6 by the mode such as knocking, thereby can not by cage bone 4 in the situation that, work to fix this filter bag 5.In the present embodiment, pressure pipe 3 when mounted in company with cage bone 4 particularly top cover flange together enter in installing hole 6, finally under the downward elastic force effect of top cover flange, be pressed between elastic ring 3 and cage bone 4.
As shown in Figure 2, in figure, in left side, show the longitudinal sectional view of filter bag 5 fixtures of the bag filter of one specific embodiment according to the present invention, on right side, show the longitudinal sectional view of example of the device for fixing filter bag of a kind of bag filter of the prior art.In the embodiment in this figure left side, the upper portion of pressure pipe 3 tilts, and is roughly conical tubular; Lower portion is vertical, roughly cylindrical tubulose.For the upper portion of pressure pipe 3, the external diameter of pressure pipe 3, stretches out to the upper left in figure until cross the inwall of elastic ring 2 gradually near the inwall of elastic ring 2 along the upward direction in figure.It should be noted that, although the pressure pipe shown in figure 3 is at the inwall of close elastic ring 2 gradually that makes progress in whole week all, but also can upwards only have part-structure run-off the straight in week according to pressure pipe 3 of the present invention, thereby near elastic ring 2, for example, at the floor of the del of pressure pipe 3 arranged outside.Some deforms figure Elastic circle 2 upsides because being subject to the oblique pressure of tapered segment of pressure pipe 3 upsides, this be conducive to prevent pressure pipe 3 and elastic ring 2 because of be subject to cage bone 4 along second axial pressure landing from tube sheet 1, and this also can produce the effect of certain fixedly filter bag 5.
The upper end of pressure pipe 3 is resisted against in the lower inner part cavity of this top cover flange, and between the two, keeping certain thrust is elastic force.If there is deformation in some parts of device for fixing filter bag for example elastic ring 2 in the long-term use procedure of equipment, for example thickness reduces, now elastic ring 2 internal diameters increase, pressure pipe 3 will move down to adapt to the internal diameter that elastic ring 2 increases under the elastic force effect of top cover flange, thereby guarantees to compress filter bag 5 always.
As shown in Figure 3 and Figure 4, in figure, clearly show that the structure of the pressure pipe 3 of one specific embodiment according to the present invention.This pressure pipe 3 is preferably made from a rigid material, and more preferably by metal material, is made, for example, by Q235 steel, made.
As shown in Figure 3, in the present embodiment, pressure pipe 3 can comprise first paragraph 13 and second segment 14 vertically.The second segment 14 of pressure pipe 3 can roughly be rounding frustum, and first paragraph 13 can roughly be cylinder.In other words, the diameter of the first paragraph 13 of pressure pipe 3 does not change vertically, and second segment 14 starts to increase gradually along upward direction from the diameter equating with cylindrical diameter, preferably increase to the internal diameter over elastic ring 2, more preferably increase to the internal diameter over installing hole 6.Be understandable that, according to pressure pipe 3 of the present invention, can not comprise shape and the constant first paragraph 13 of size, its cross sectional shape or size can all change on axially whole.In the present embodiment, the diameter of the second segment 14 of pressure pipe 3 is linear increases, but can be also non-linear increase, for example flare roughly.First paragraph 13 can form angle R in the vertical with second segment 14, and this angle R is for example 170 degree.Be understandable that, this angle R is by with comprising that elasticity, pressure pipe 3 and the elastic ring 2 of pressure pipe 3 materials or the variation of the factors such as confficient of static friction between filter bag 5 change.
As shown in Figure 4, pressure pipe 3 is pipe substantially, and projection of shape is in the axial direction annular substantially.Be understandable that, pressure pipe 3 of the present invention can not be pipe, and its projection of shape in the axial direction can also be the shape of the form fit of any and installing hole 6 and elastic ring 2.In the present embodiment, pressure pipe 3 is upwards comprising identical, equal-sized two the portion's sections of shape (11,12) week, is defined as respectively First section 11 and second section 12, shown in figure two parts of semicircular in shape shape roughly.When mounted, cage bone 4 is raised a bit of distance, and for example 0.2 meter, operating personnel can grip respectively portion's section (11,12) and be abutted in cage bone 4 sidewalls that expose by two hands, then make pressure pipe 3 together insert in installing hole 6 with cage bone 4.Inserting the final stage of installing hole 6, operating personnel no longer contact pressure pipe 3, but guides and depress pressure pipe 3 by cage bone 4, thereby make pressure pipe 3 insert also compression of gap between cage bones 4 and elastic ring 2, until the top cover flange of cage bone 4 is against to tube sheet 1.Now, the downside of the internal cavities of the top cover flange of cage bone 4 still abuts against the top of pressure pipe 3, thereby makes pressure pipe 3 keep compressing filter bag 5.
After installation, between First section 11 and second section 12, can form clearance D, staggered to avoid the end of two parts to occur.Pressure pipe 3 ends at clearance D place can be eliminated burr and process and do not do chamfering or other round and smooth processing, to avoid staggered.The width of clearance D can, in the scope of 1 millimeter to 10 millimeters, be preferably 3 millimeters.
Although below by reference to the accompanying drawings the structure of embodiments of the invention, function and feature have been made to detailed description, these descriptions are only in order to illustrate, must not be interpreted as limiting the present invention.Any by those skilled in the art's spirit according to the present invention, to be made apparent improvement and changed be all possible, and these improvement and change and all do not exceed scope of the present invention.Protection scope of the present invention is only determined by appended claims.
Claims (10)
1. the filter bag of a bag filter (5) fixture, comprise there is installing hole tube sheet (1) and the elastic ring (2) of (6), this elastic ring (2) is positioned at coaxially this installing hole (6) and is subject to radial compression, this filter bag (5) axially has an opening, the periphery of this opening is clamped between this elastic ring (2) and this tube sheet (1), this bag filter also comprises the cage bone (4) that supports this filter bag (5), it is characterized in that, this filter bag (5) fixture also comprises pressure pipe (3), this cage bone (4) extends through this pressure pipe (3), this pressure pipe of at least a portion (3) extends into this elastic ring (2) inner side in this installing hole (6), make this pressure pipe (3) by this elastic ring of insertion radial compression (2) of this cage bone (4), thereby fix this filter bag (5), wherein, this pressure pipe (3) can regulate by changing the radial compression power that its axial location puts on described elastic ring (2) to it.
2. device for fixing filter bag according to claim 1, is characterized in that, this pressure pipe (3) is integrally formed on this cage bone (4).
3. device for fixing filter bag according to claim 1 and 2, is characterized in that, at least a portion outer wall of this pressure pipe (3) in axial direction upwards gradually diametrically near and cross the inwall of this elastic ring (2).
4. device for fixing filter bag according to claim 1, is characterized in that, the upper surface of this pressure pipe (3) is subject to the downward axial compressive force of this cage bone (4) after installation in position.
5. device for fixing filter bag according to claim 4, it is characterized in that, this pressure pipe (3) axially comprises respectively first paragraph (13) and second segment (14) along this, the external diameter of this first paragraph (13) remains unchanged vertically, and the external diameter of this second segment (14) is increasing gradually along upward direction.
6. device for fixing filter bag according to claim 5, is characterized in that, the external diameter of this second segment (14) is linear increase vertically.
7. device for fixing filter bag according to claim 6, is characterized in that, this second segment (14) is 170 degree with the angle (R) that this first paragraph (13) forms on the vertical section of this pressure pipe (3).
8. device for fixing filter bag according to claim 1, is characterized in that, portion's section that several separate, that extend vertically that this pressure pipe (3) comprises, has gap (D) between these sections after this pressure pipe (3) installation in position.
9. device for fixing filter bag according to claim 8, is characterized in that, this pressure pipe (3) comprises two equal and opposite in directions, portion's section (11,12) that shape is identical.
10. the filter bag of bag filter (5) fixing means, this filter bag (5) axially has an opening, and the method comprises: have installing hole tube sheet (1), elastic ring (2) and the cage bone (4) of (6) is provided; This elastic ring (2) is located at coaxially in this installing hole (6) and is made this elastic ring (2) be subject to radial compression, so that the periphery of this filter bag (5) opening is clamped between this elastic ring (2) and this tube sheet (1); Pressure pipe (3) is provided, and this cage bone (4) extends through this pressure pipe (3); This cage bone (4) and this pressure pipe (3) are inserted in this installing hole, make this cage bone (4) support this filter bag (5), and make this pressure pipe of at least a portion (3) enter this elastic ring (2) inner side in this installing hole (6), and make this pressure pipe (3) by this elastic ring of insertion radial compression (2) of this cage bone (4), thereby fix this filter bag (5), wherein, this pressure pipe (3) can regulate by changing the radial compression power that its axial location puts on described elastic ring (2) to it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210238678.4A CN102794067B (en) | 2012-07-11 | 2012-07-11 | Device and method for fixing filter bag of bag-type filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210238678.4A CN102794067B (en) | 2012-07-11 | 2012-07-11 | Device and method for fixing filter bag of bag-type filter |
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| Publication Number | Publication Date |
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| CN102794067A CN102794067A (en) | 2012-11-28 |
| CN102794067B true CN102794067B (en) | 2014-12-03 |
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| CN201210238678.4A Expired - Fee Related CN102794067B (en) | 2012-07-11 | 2012-07-11 | Device and method for fixing filter bag of bag-type filter |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307267B (en) * | 2014-10-16 | 2016-03-23 | 成都瑞柯林工程技术有限公司 | Gas-filtering device |
| CN109513249A (en) * | 2018-09-26 | 2019-03-26 | 江苏臻中滤料科技有限公司 | A kind of device for fixing filter bag |
| CN111544973B (en) * | 2020-04-07 | 2021-10-29 | 东南大学 | Bag bottom reinforced filter bag dust removal method with variable inner channel and filter device |
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| JP2006231315A (en) * | 2005-01-31 | 2006-09-07 | Sagami Shokai:Kk | Bag filter for dust collecting device and mounting method of bag filter |
| CN201510811U (en) * | 2009-04-28 | 2010-06-23 | 石家庄市宏晟环保科技有限公司 | Improved bag filter |
| CN202151536U (en) * | 2011-06-28 | 2012-02-29 | 常州市康安环保设备有限公司 | Filter bag skeleton installing mechanism for pulse blowback bag filter |
| CN202823043U (en) * | 2012-07-11 | 2013-03-27 | 大唐内蒙古多伦煤化工有限责任公司 | Filter bag fixing device of bag filter |
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2012
- 2012-07-11 CN CN201210238678.4A patent/CN102794067B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006231315A (en) * | 2005-01-31 | 2006-09-07 | Sagami Shokai:Kk | Bag filter for dust collecting device and mounting method of bag filter |
| CN201510811U (en) * | 2009-04-28 | 2010-06-23 | 石家庄市宏晟环保科技有限公司 | Improved bag filter |
| CN202151536U (en) * | 2011-06-28 | 2012-02-29 | 常州市康安环保设备有限公司 | Filter bag skeleton installing mechanism for pulse blowback bag filter |
| CN202823043U (en) * | 2012-07-11 | 2013-03-27 | 大唐内蒙古多伦煤化工有限责任公司 | Filter bag fixing device of bag filter |
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