CN202983398U - Temperature-resistant blended fiber needled felt - Google Patents
Temperature-resistant blended fiber needled felt Download PDFInfo
- Publication number
- CN202983398U CN202983398U CN 201220744541 CN201220744541U CN202983398U CN 202983398 U CN202983398 U CN 202983398U CN 201220744541 CN201220744541 CN 201220744541 CN 201220744541 U CN201220744541 U CN 201220744541U CN 202983398 U CN202983398 U CN 202983398U
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- Prior art keywords
- nomex
- temperature
- blended fiber
- needled felt
- composite fibre
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Abstract
The utility model discloses a temperature-resistant blended fiber needled felt. The blended fiber needled felt is of a layer structure. The temperature-resistant blended fiber needled felt is characterized that based on a base fabric (3), blended fiber layers (2) are respectively adhered on the upper surface and the lower surface of the base fabric (3); and a basalt fiber layer (1) is adhered on the blended fiber layer (2) at one side. The temperature-resistant blended fiber needled felt has the advantages of high filtering precision and excellent air permeability; and simultaneously, the needled felt is remarkable in temperature resistance, corrosion resistance, wear resistance and flexibility, and is low in manufacture cost and long service life.
Description
Technical field
The utility model relates to a kind of Nomex, and a kind of composite fibre Nomex of heatproof is provided especially, and this heatproof composite fibre Nomex mainly is suitable for the high-temperature-resistant filtering material as industry sack cleaners such as cement kiln end, steel mill and thermal power plants.
Background technology
At present, in cement industry, steel and iron industry and thermal power plant, energy-saving and cost-reducing and protection of the environment is one of vital task of sustainable development.And in multiple dedusting technology, dry cleaning not only can significantly reduce environmental pollution, but also can increase substantially heat value, saves the energy.It is estimated, compare with wet dedusting and can improve calorific value 20% left and right, have very large economic benefit.In steel and iron industry, different stoves requires also different to the heatproof of filtrate, requires heatproof to reach more than 300 ℃ as blast furnace, coal gas dust removal of converter with filtrate, but requires relatively low to other of filtrate; Sinter fume is that 150 ℃～200 ℃ of heatproofs get final product to the requirement of filtrate, but requirement will have stronger wearability and corrosion resistance.Steel and iron industry is very large to the space of high-temperature filter material demand, and specification requirement is also relatively high.Domestic filtrate comparatively commonly used has: Nomex (Nomex nylon), glass fibre/P84 compound spiked felt, pure glass fiber filter material etc., high temperature resistance is poor, corrosion resistance is low but above-mentioned material all has, and at aspects such as mechanical property, anti-wear performance, folding quality and service lifes, all can not be satisfactory.
In cement industry, in order to satisfy new cement industry emission standard, the Retrofit on electrostatic precipitator of original kiln hood, kiln tail is become house-bag duster for high temperature, obtained positive effect.The filtrate that the new type dry kiln tail gathers dust and selects must satisfy the requirements such as high temperature resistant, resistance to chemical attack, hydrophobic, easy-to-clean ash, and glass series filtrate uses more general.Anti-blow cleaning dust class dust-precipitator adopts glass to weave cotton cloth or glass buiky yarn class filtrate more, and they have advantage at a low price.The most of glass coated filter material that adopts of kiln tail bag dust collector, partly adopted glass/P84 compound spiked felt or Nomex+RH in recent years.Temperature tolerance is poor, corrosion resistance is low and the aspects such as anti-wear performance, folding quality and service life are all not good but above-mentioned material exists.
The utility model content
The purpose of this utility model is to provide a kind of heatproof composite fibre Nomex, to solve that the temperature tolerance that exists in filtrate in the past is poor, corrosion resistance is low and the problem such as wearability, folding resistance and service life is bad.
The heatproof composite fibre Nomex that the utility model provides, this composite fibre Nomex is layer structure, it is characterized in that: described composite fibre Nomex is take base cloth 3 as relying on, upper and lower surface at base cloth 3 is pasted with respectively mixed fiber layer 2, is pasted with basalt fibre layer 1 on the mixed fiber layer 2 of a side.
Heatproof composite fibre Nomex in the utility model by the design of above-mentioned layer structure, has improved filtering accuracy, gas permeability, folding resistance and the service life of this composite fibre Nomex effectively.Wherein, because basalt fibre has that high strength, high-modulus, high temperature resistant, anti-oxidant, radioresistance, adiabatic sound insulation, filterability are good, incompressible intensity and shear strength high, therefore, Nomex adopts the basalt fibre layer effectively to improve afterwards the heatproof of Nomex, wear-resisting and corrosion resistance.And basalt fibre is existing known materials, and this raw material resources is abundant, and material cost is relatively low, has reduced the cost of Nomex.
Preferably, described base cloth 3 is the glass fibre base cloth, and this glass fibre base cloth is existing known materials, and is cheap.
Further preferred, described mixed fiber layer 2 is the mixed fiber layer of glass fibre and chemical fibre; Effectively improve folding resistance, the filtering accuracy of Nomex by the design of this mixed fiber layer, strengthened simultaneously the anti-fracture strength of Nomex.
Further preferred, described basalt fibre layer thickness is 0.6mm ~ 0.9mm; Described composite fibre layer thickness is 0.8mm ~ 1.1mm; The design of this kind thickness can reach the requirement of temperature tolerance, corrosion resistance, wearability and folding resistance, can also reduce the consumption of material simultaneously, saves cost.
The heatproof composite fibre Nomex that the utility model provides has the advantages such as filtering accuracy is high, good permeability, simultaneously this Nomex all show at aspects such as temperature tolerance, corrosion resistance, wearability, folding resistances better, and low cost of manufacture, long service life.
Description of drawings
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 is heatproof composite fibre Nomex structural representation.
The specific embodiment
As shown in Figure 1, be a kind of heatproof composite fibre Nomex, this composite fibre Nomex is layer structure, and it is take base cloth 3 as relying on, and is pasted with respectively mixed fiber layer 2 in the upper and lower surface of base cloth 3, is pasted with basalt fibre layer 1 on the mixed fiber layer 2 of a side.
Wherein, described base cloth 3 is chosen as the glass fibre base cloth.
For the folding resistance, filtering accuracy and the anti-fracture strength that improve this Nomex, described mixed fiber layer 2 is chosen as the mixed fiber layer of glass fibre and chemical fibre.
For the Thickness Design of described Nomex is reasonable, Cost reduction, can be designed to 0.6mm ~ 0.9mm with described basalt fibre layer thickness effectively; The mixed fiber layer Thickness Design is 0.8mm ~ 1.1mm.
In order to check the specific performance of heatproof composite fibre Nomex in the utility model, we have carried out performance comparison with itself and PPS, Nomex, glass dimension, P84, PTFE material, and wherein the Nomex in the utility model represents with materials A, specifically sees Table 1:
Table 1: the performance comparison table of each material
By as seen from Table 1, the heatproof composite fibre Nomex in the utility model is no matter aspect serviceability temperature, mechanical property, chemical stability, or aspect hydrolytic stability and anti-flammability, performance all shows better.
Claims (4)
1. heatproof composite fibre Nomex, this composite fibre Nomex is layer structure, it is characterized in that: described composite fibre Nomex is take base cloth (3) as relying on, upper and lower surface at base cloth (3) is pasted with respectively mixed fiber layer (2), is pasted with basalt fibre layer (1) on the mixed fiber layer (2) of a side.
2. according to heatproof composite fibre Nomex claimed in claim 1, it is characterized in that: described base cloth (3) is the glass fibre base cloth.
3. according to heatproof composite fibre Nomex claimed in claim 1, it is characterized in that: described basalt fibre layer thickness is 0.6mm ~ 0.9mm.
4. according to heatproof composite fibre Nomex claimed in claim 1, it is characterized in that: described composite fibre layer thickness is 0.8mm ~ 1.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744541 CN202983398U (en) | 2012-12-29 | 2012-12-29 | Temperature-resistant blended fiber needled felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744541 CN202983398U (en) | 2012-12-29 | 2012-12-29 | Temperature-resistant blended fiber needled felt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202983398U true CN202983398U (en) | 2013-06-12 |
Family
ID=48554624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220744541 Expired - Lifetime CN202983398U (en) | 2012-12-29 | 2012-12-29 | Temperature-resistant blended fiber needled felt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202983398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964063A (en) * | 2016-06-28 | 2016-09-28 | 含山县科宇环境工程有限公司 | Anticorrosive filtering material |
-
2012
- 2012-12-29 CN CN 201220744541 patent/CN202983398U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964063A (en) * | 2016-06-28 | 2016-09-28 | 含山县科宇环境工程有限公司 | Anticorrosive filtering material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |