CN201482327U - High-temperature high-strength composite needled felt - Google Patents
High-temperature high-strength composite needled felt Download PDFInfo
- Publication number
- CN201482327U CN201482327U CN2009202030256U CN200920203025U CN201482327U CN 201482327 U CN201482327 U CN 201482327U CN 2009202030256 U CN2009202030256 U CN 2009202030256U CN 200920203025 U CN200920203025 U CN 200920203025U CN 201482327 U CN201482327 U CN 201482327U
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- needled felt
- high temperature
- temperature resistant
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Abstract
The utility model provides a high temperature resistant and high-strength composite needled felt, which relates to a filtering material in the field of flue gas and dust removal by filtration. The composite needled felt comprises composite superfine chopped strands, a fiber surface layer, glass fiber warp threads and glass fiber weft threads, and uses a double-combing and double-paving mode to simultaneously card chemical fiber and glass fiber chopped strands for two times; nets are simultaneously paved on an upper part and a lower part to form fiber layers; the well paved fiber layers are paved on the positive surface and the negative surface of a base cloth woven from warp threads and weft threads, and the upper part and the lower part are simultaneously needled to form the fiber surface layer of the needled felt; and pore spaces form a three-dimensional filter screen. The base cloth is treated by a PTFE emulsion. The high temperature resistant and high-strength composite needled felt has the advantages of good temperature resistance, stable corrosion resistance, strong tensile strength, precise filter fineness, and superior performance price ratio.
Description
Technical field
The utility model relates to the filtering material in a kind of exhaust gas dust dust removal by filtration field, high temperature resistant, high-tenacity compound spiked felt that particularly a kind of iron and steel blast furnace gas utilizes the waste heat top pressure power generation after the udst separation to use.
Background technology
The existing filtrate that is applied to waste heat top pressure power generation mainly is the continuous glass fibre coated filter material, its surface uses the PTFE film coating technique can reach filter criteria, but because the fine and closely woven serious flow that has reduced in the gas unit are unit interval of gas hole, increased equipment operation burden simultaneously, because its wearability of continuous glass-fiber coated filter material is relatively poor, service life is also relatively poor simultaneously.Cause this filtrate to purify in the waste heat top pressure power generation and can't normally move for a long time at dedusting of blast furnace gas.
Summary of the invention
For overcoming the shortcoming of prior art, the utility model proposes a kind of through high temperature resistant chemical industry oil processing, high temperature resistant, the high-tenacity compound spiked felt that make it use intensity and corrosion resistance simultaneously can not change at high temperature.
The technical solution of the utility model is achieved in that high temperature resistant, high-tenacity compound spiked felt, comprise: the short chopping of composite superfine, fiber surface layer, glass warp thread, glass weft yarn, use the two shops of two combs mode, chemical fibre and the short chopping of glass are carried out twice combing simultaneously, lapping simultaneously forms fibrage up and down, the fibrage of completing is layered on the base cloth tow sides that formed by warp thread and weft weaving respectively, and acupuncture simultaneously up and down, form the Nomex fibrous face layer, hole and hole are the stereoscopic three-dimensional screen pack.Described base cloth is handled through the PTFE emulsion.
The utility model has the advantages that: have good temperature tolerance, stable corrosion resistance, stronger tension intensity, accurate filtering accuracy, superiority is arranged on cost performance.
Below in conjunction with drawings and Examples the utility model is described further.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
High temperature, high-tenacity compound spiked felt, use the two laying methods of two combs, chemical fibre and the short chopping 1 of composite superfine are carried out twice combing simultaneously, lapping simultaneously forms fiber surface layer 2 up and down, the fiber surface layer of completing is layered on respectively by glass warp thread 3 and glass weft yarn 4 and weaves the base cloth tow sides that form, and acupuncture simultaneously up and down, form the Nomex fiber surface layer, its cohesive force is strengthened.Four, strengthen needling density, make Nomex more tight, the surface is more smooth smooth, and porosity increase and hole and hole present the stereoscopic three-dimensional screen pack.Five, the filter cloth with machine-shaping carries out the processing of PTFE emulsion.In the processing procedure, Main Control Elements is that the temperature difference is turned down in the post processing stove, extend running time, air current flow is accelerated, the filter cloth of coming out of the stove must reach oven dry, and carry out calendering simultaneously and handle.Remove felt face burr, make Nomex have more good dust stripping ability.
The material of high temperature, high-tenacity compound spiked felt adopts alkali-free 80s glass, high temperature resistant chemical fibre, grammes per square metre: 1150g/m
2Thickness: 2.8mm, tensile break strength (N/5*20cm): a) warp-wise:＞1100, broadwise:＞1200, air permeability (mm/s): 150, serviceability temperature (℃): a) continuous serviceability temperature: 280, surface treatment: the PTFE emulsion is handled, surperficial press polish easy-to-clean ash is handled, respectively add 300mm high strength enhancement Layer at the bottom of the interior interfacing, the bottom is sewed up to strengthen and is handled filtration velocity≤1m/min filtering accuracy≤5mg/m
2
The TRT-MLS filter bag is used in operation, equipment filtration velocity 0.9m/min, equipment operation negative pressure 7500Pa, filter bag size: Φ 130 * 6000mm, the grammes per square metre 3.4kg/ of unit bar, operation after six months operating position good, do not see any broken bag phenomenon, heat resistance does not change, and Air permenbility is below 9mg/m3.
Claims (2)
1. high temperature resistant, high-tenacity compound spiked felt, comprise: the short chopping of composite superfine, fiber surface layer, glass base cloth-warp thread, glass base cloth-weft yarn use the two shops of two combs mode, chemical fibre and the short chopping of glass are carried out twice combing simultaneously, lapping simultaneously forms fibrage up and down, the fibrage of completing is layered on the base cloth tow sides that formed by warp thread and weft weaving respectively, and acupuncture simultaneously up and down, forming the Nomex fibrous face layer, hole and hole are the stereoscopic three-dimensional screen pack.
2. high temperature resistant, high-tenacity compound spiked felt according to claim 1 is characterized in that: described base cloth is handled through the PTFE emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202030256U CN201482327U (en) | 2009-09-03 | 2009-09-03 | High-temperature high-strength composite needled felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202030256U CN201482327U (en) | 2009-09-03 | 2009-09-03 | High-temperature high-strength composite needled felt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201482327U true CN201482327U (en) | 2010-05-26 |
Family
ID=42421221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202030256U Expired - Fee Related CN201482327U (en) | 2009-09-03 | 2009-09-03 | High-temperature high-strength composite needled felt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201482327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111251679A (en) * | 2020-03-25 | 2020-06-09 | 南京强晟玻纤复合材料有限公司 | Glass fiber polyester needled felt and manufacturing method thereof |
-
2009
- 2009-09-03 CN CN2009202030256U patent/CN201482327U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111251679A (en) * | 2020-03-25 | 2020-06-09 | 南京强晟玻纤复合材料有限公司 | Glass fiber polyester needled felt and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20110903 |