CN103611365A - Punched felt with enhanced key parts of base cloth - Google Patents
Punched felt with enhanced key parts of base cloth Download PDFInfo
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- CN103611365A CN103611365A CN201310618203.2A CN201310618203A CN103611365A CN 103611365 A CN103611365 A CN 103611365A CN 201310618203 A CN201310618203 A CN 201310618203A CN 103611365 A CN103611365 A CN 103611365A
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- nomex
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Abstract
The invention provides a punched felt with enhanced key parts of base cloth and relates to dust filtering felt cloth. The invention provides the punched felt with the enhanced key parts of the base cloth, which has the advantages that the strength of the punched felt can be improved by improving the strength of the base cloth on a contact position of a bag cage transverse bar. The punched felt is provided with a fiber layer and the base cloth, wherein the fiber layer is composed of fibers with at least one texture; the base cloth is composed of transverse yarns and longitudinal yarns; in a range that the distance between the transverse yarns and the upper side of the matched bag cage transverse bar and the distance between the transverse yarns and the lower side of the matched bag cage transverse bar are 10mm-30mm, the distribution density of the transverse yarns is 1.1-3 times that of other parts. According to the punched felt with the enhanced key parts of the base cloth, the strength of an easily-damaged position of a filtering bag is improved and the service life of the filtering bag is prolonged. On the existing structural basis of the punched felt, the base cloth on the contact positions of the punched felt and the bag cage transverse bar is enhanced; a stress concentration phenomenon easily occurs on the positions of the base cloth, and the cloth is firstly broken under the flushing of smoke, so that after the positions are enhanced, the strength of each piece of the felt cloth on the whole filtering bag reaches a relative balance state and the service life of the filtering bag is prolonged.
Description
Technical field
The present invention relates to a kind of dust-filtering felt-cloth, especially relate to a kind of base cloth key position strengthening Nomex that discharges exhaust gas dust purification for industrial processes such as thermoelectricity, cement, iron and steel.
Background technology
In atmosphere field of Environment Protection, along with the extensive application of electric-bag complex dust collector and sack cleaner, filter bag is as deduster core component, and its performance has determined whole dust pelletizing system running status, life-span of the filter bag affects the discharge of deduster, and the life-span of filter bag is relevant with the intensity of filter bag.About dust-filtering filter cloth, existing market occupation rate maximum be Nomex, Nomex is wide in variety, is mainly to adopt multiple different Nomex fibrage material for different working conditions.Most methods that adopt are to select unlike material for different working conditions, to extend life of bag filter, have solved the problem on life of bag filter impact such as different temperatures, different oxygen and different smoke components.
In the actual filtration process of filter cloth, due to the pressure reduction inside and outside filter bag, make filter cloth be close to bag cage and by bag cage supporting filter cloth, guarantee the certain shape of filter cloth, and bag cage is comprised of horizontal bar and vertical muscle, filter cloth is concentrated at horizontal bar and the vertical muscle cross place generation stress of bag cage like this, ordinary filter is occurred in advance damaged at this place, until large area breakage appears in filter bag.Base cloth in Nomex filter cloth plays conclusive effect, the good bad influence life of bag filter of Nomex base cloth intensity.
So far not yet relevant for passing through, improve with bag cage horizontal bar contact position base cloth intensity to improve the relevant report of Nomex intensity, disclosed Nomex in Chinese patent CN201482327U and CN202983399U is mainly by adopting resistance to strong fibrous sheet material mode to improve Nomex bulk strength.Along with filter bag operating condition changes, the Nomex of resistance to strong material has been subject to extensive concern, but the whole Nomex intensity that improves of uniformity, for non-stress concentrated position, adopts resistance to strong material will waste material cost.In prior art, in the constant situation of whole Nomex intensity, stress concentrated position part felt-cloth intensity is improved, the concrete base cloth key position schedule of reinforcement that adopts, improves the base cloth intensity with bag cage horizontal bar contact position, maybe can increase this position number of yarns, maybe this position yarn can be selected to resistance to strong material, improve and relatively improve felt-cloth intensity, optimize again felt-cloth structure, input saves material.
Summary of the invention
The object of the present invention is to provide can be by improving with bag cage horizontal bar contact position base cloth intensity to improve a kind of base cloth key position strengthening Nomex of Nomex intensity.
The present invention is provided with fibrage and base cloth; Described fibrage consists of at least one material fiber; Described base cloth is comprised of transverse yarns and longitudinal yarn; At supporting bag cage horizontal bar place, up and down within the scope of each 10～30mm, the density that described transverse yarns is arranged is 1.1～3 times of other position density.
Described fiber can adopt PPS fiber, PTFE fiber, P84 fiber, glass fibre or other material fibers; Described yarn can adopt PPS fiber yarn, PTFE fiber yarn, P84 fiber yarn, glass fiber yarn or other material yarns.
Described transverse yarns can consist of at least one material yarn.
Described longitudinal yarn can consist of at least one material yarn.
Described fibrage can be formed by least two kinds of unlike material fiber blends.
At supporting bag cage horizontal bar place up and down within the scope of each 10～30mm, transverse yarns can adopt the corrosion resistances such as PTFE long fibre or glass fibre and/or powerful better material, or adopt the corrosion resistances such as blending PTFE long fibre or glass fibre and/or powerful better material, other positions adopt the general fibres such as PPS.
Because the present invention is in base cloth key position strengthening, base cloth can consist of a kind of material yarn, and at supporting bag cage horizontal bar place, up and down within the scope of each 10～30mm, transverse yarns is arranged closeer; Or base cloth can consist of unlike material yarn, at supporting bag cage horizontal bar place up and down within the scope of each 10～30mm, transverse yarns adopt than PPS fiber and P84 fiber have better corrosion-resistant, high temperature resistant and (or) powerful better material (for example PTFE long fibre or glass fibre), so the present invention is large with other position intensity of strength ratio of bag cage horizontal bar contact position.In addition, because base cloth is comprised of transverse yarns and longitudinal yarn, therefore the yarn strength at bag cage horizontal bar place is larger than other position yarn strengths, or the yarn arrangement density at bag cage horizontal bar place is 1.1～3 times of other position yarn arrangement density, or the yarn at bag cage horizontal bar place adopts than the more resistance to strong material of other position yarns.
The present invention improves filter bag and bag cage horizontal bar contact position base cloth intensity mode owing to adopting, and has therefore improved filter bag than the intensity that is easier to damage location, has extended life of bag filter.
Compare with existing Nomex, the present invention is optimized original Nomex structure; On Nomex existing structure basis, itself and the base cloth of bag cage horizontal bar contact position are strengthened, because these positions of felt-cloth easily produce stress concentration phenomenon, and under sweep of gases, cloth will take the lead in brokenly wearing herein, after strengthening, whole piece filter bag everywhere felt-cloth intensity will reach relative equilibrium state, and life-span of the filter bag will extend.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the embodiment of the present invention;
Fig. 2 is key position (area of stress concentration) structural representation of the embodiment of the present invention;
Fig. 3 is base cloth transverse yarns schedule of reinforcement one schematic diagram of the embodiment of the present invention;
Fig. 4 is base cloth transverse yarns schedule of reinforcement two schematic diagrames of the embodiment of the present invention;
Fig. 5 is the longitudinal yarn strengthening of the base cloth of embodiment of the present invention schematic diagram.
In the drawings, be respectively labeled as: 1, fibrage; 2, base cloth; 2-1, transverse yarns; 2-2, strengthening transverse yarns; 2-3, longitudinal yarn; 2-4, strengthen longitudinal yarn.
The specific embodiment
The present invention is further illustrated in connection with accompanying drawing for following examples.
Referring to Fig. 1～4, the embodiment of the present invention is comprised of fibrage 1 and base cloth 2; Fibrage 1 consists of a kind of fiber or is formed by equal proportion blending in 1: 9,2: 8,3: 7,4: 6,5: 5,6: 4,7: 3,8: 2,9: 1 by unlike material fiber, and Fiber Materials can be PPS fiber, PTFE fiber, P84 fiber, glass fibre or other materials.Base cloth 2 is comprised of transverse yarns 2-1, strengthening horizontal line yarn 2-2 and longitudinal yarn 2-3, and yarn material can be PPS fiber, PTFE fiber, P84 fiber, glass fibre or other materials.Base cloth 2 can consist of a kind of material yarn, and at supporting bag cage horizontal bar place, up and down within the scope of each 10～30mm, strengthening transverse yarns 2-2 arranges closeer; Or base cloth 2 can consist of unlike material yarn, at supporting bag cage horizontal bar place up and down within the scope of each 10～30mm, strengthening transverse yarns 2-2 adopt more corrosion-resistant and (or) powerful better material (for example PTFE long fibre).
With existing felt-cloth comparison, base cloth yarn of the present invention and a bag cage supporting layout, rational in infrastructure, at bag cage horizontal bar area of stress concentration, strengthen felt-cloth intensity, extended felt-cloth service life.
When flue dust passes through Nomex, dust is blocked on felt-cloth A face, and clean gas goes out from B surface current; In filter process, due to the pressure reduction inside and outside filter bag, make filter cloth be close to bag cage and by bag cage supporting filter cloth, guarantee the certain shape of filter cloth, and bag cage is comprised of horizontal bar and vertical muscle, filter cloth produces area of stress concentration at horizontal bar and the vertical muscle cross place of bag cage like this, ordinary filter is occurred in advance damaged at this place, until large area breakage appears in filter bag.Base cloth in Nomex filter cloth plays conclusive effect, the good bad influence life of bag filter of Nomex base cloth intensity.The present invention adopts and improves filter bag and bag cage horizontal bar contact position base cloth intensity mode, to improve filter bag than the intensity that is easier to damage location, extends life of bag filter.
Similar to Example 1, its difference is that fibrage consists of PTFE fiber, and yarn material adopts P84 fiber.
Embodiment 3
Similar to Example 1, its difference is that fibrage consists of P84 fiber, and yarn material adopts PTFE fiber.
Embodiment 4
Similar to Example 1, its difference be fibrage by PPS fiber and PTFE fiber in mass ratio content blending in 1: 1 form, yarn material adopts PTFE fiber.
Embodiment 5
Similar to Example 1, its difference be fibrage by PPS fiber and P84 fiber in mass ratio content blending in 1: 1 form, yarn material adopts PTFE fiber.
Embodiment 6
As Fig. 5, similar to Example 1, its difference is felt-cloth corresponding to the perpendicular muscle position of bag cage further to strengthen, and in concrete enforcement, by longitudinal yarn of strengthening base cloth, schedule of reinforcement is consistent with transverse strengthening.
In Fig. 3～5, label L is horizontal bar distance between center line.
Claims (7)
1. base cloth key position strengthening Nomex, is characterized in that being provided with fibrage and base cloth; Described fibrage consists of at least one material fiber; Described base cloth is comprised of transverse yarns and longitudinal yarn; At supporting bag cage horizontal bar place, up and down within the scope of each 10～30mm, the density that described transverse yarns is arranged is 1.1～3 times of other position density.
2. base cloth key position is strengthened Nomex as claimed in claim 1, it is characterized in that described fiber adopts PPS fiber, PTFE fiber, P84 fiber, glass fibre or other material fibers.
3. base cloth key position is strengthened Nomex as claimed in claim 1, it is characterized in that described yarn adopts PPS fiber yarn, PTFE fiber yarn, P84 fiber yarn, glass fiber yarn or other material yarns.
4. base cloth key position is strengthened Nomex as claimed in claim 1, it is characterized in that described transverse yarns consists of at least one material yarn.
5. base cloth key position is strengthened Nomex as claimed in claim 1, it is characterized in that described longitudinal yarn consists of at least one material yarn.
6. base cloth key position is strengthened Nomex as claimed in claim 1, it is characterized in that described fibrage is formed by least two kinds of unlike material fiber blends.
7. base cloth key position is strengthened Nomex as claimed in claim 1, it is characterized in that at supporting bag cage horizontal bar place up and down within the scope of each 10～30mm, transverse yarns adopts PTFE long fibre or glass fibre, or adopts blending PTFE long fibre or glass fibre, and other positions adopt general fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618203.2A CN103611365B (en) | 2013-11-28 | 2013-11-28 | Punched felt with enhanced key parts of base cloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310618203.2A CN103611365B (en) | 2013-11-28 | 2013-11-28 | Punched felt with enhanced key parts of base cloth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103611365A true CN103611365A (en) | 2014-03-05 |
| CN103611365B CN103611365B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310618203.2A Active CN103611365B (en) | 2013-11-28 | 2013-11-28 | Punched felt with enhanced key parts of base cloth |
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| Country | Link |
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| CN (1) | CN103611365B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737389A (en) * | 2021-09-29 | 2021-12-03 | 礼德滤材科技(苏州)有限责任公司 | Three-carding spunlace non-woven fabric with direct lapping function and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4220459A (en) * | 1978-10-16 | 1980-09-02 | Wheelabrator-Frye Inc. | Filter device with top access to filter bag |
| CN2825070Y (en) * | 2005-07-20 | 2006-10-11 | 江西江联普开电力环保工程有限公司 | Wear-resistant double-layered filtering bag |
| CN101259351A (en) * | 2007-12-14 | 2008-09-10 | 冯之军 | Cloth bag dust remover |
| CN102389671A (en) * | 2011-08-19 | 2012-03-28 | 江苏省旭日冶金环保设备有限公司 | Graphite alkali-free high-precision filtration dust bag and manufacturing process thereof |
| CN203577472U (en) * | 2013-11-28 | 2014-05-07 | 福建龙净环保股份有限公司 | Base fabric key part intensified needled felt |
-
2013
- 2013-11-28 CN CN201310618203.2A patent/CN103611365B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4220459A (en) * | 1978-10-16 | 1980-09-02 | Wheelabrator-Frye Inc. | Filter device with top access to filter bag |
| CN2825070Y (en) * | 2005-07-20 | 2006-10-11 | 江西江联普开电力环保工程有限公司 | Wear-resistant double-layered filtering bag |
| CN101259351A (en) * | 2007-12-14 | 2008-09-10 | 冯之军 | Cloth bag dust remover |
| CN102389671A (en) * | 2011-08-19 | 2012-03-28 | 江苏省旭日冶金环保设备有限公司 | Graphite alkali-free high-precision filtration dust bag and manufacturing process thereof |
| CN203577472U (en) * | 2013-11-28 | 2014-05-07 | 福建龙净环保股份有限公司 | Base fabric key part intensified needled felt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737389A (en) * | 2021-09-29 | 2021-12-03 | 礼德滤材科技(苏州)有限责任公司 | Three-carding spunlace non-woven fabric with direct lapping function and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN103611365B (en) | 2015-04-15 |
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