CN202207512U - Novel high-temperature resistant and antistatic needle-punched filter felt - Google Patents
Novel high-temperature resistant and antistatic needle-punched filter felt Download PDFInfo
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- CN202207512U CN202207512U CN2009201387073U CN200920138707U CN202207512U CN 202207512 U CN202207512 U CN 202207512U CN 2009201387073 U CN2009201387073 U CN 2009201387073U CN 200920138707 U CN200920138707 U CN 200920138707U CN 202207512 U CN202207512 U CN 202207512U
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Abstract
The utility model discloses a novel high-temperature resistant and antistatic needle-punched filter felt. The needle-punched filter felt comprises a high-temperature resistant filter surface layer, a high-temperature resistant intermediate fiber layer, a high-temperature resistant base cloth layer and a high-temperature resistant lower fiber layer which are coincided in sequence; and the high-temperature resistant filter surface layer is a high-temperature resistant superfine fiber layer mixed with stainless steel fiber, wherein the fiber fineness of the high-temperature resistant superfine fiber layer is smaller than or equal to 1D, and the mixing ratio of the stainless steel fiber is 5 to 15%. After the scheme is adopted, the fiber in the high-temperature resistant filter surface layer is superfine fiber, so that the filter precision of smoke gas is higher; besides, compared with the method that both the upper fiber layer and the lower fiber layer are mixed with stainless steel fiber in the prior art, the novel high-temperature resistant and antistatic needle-punched filter felt has the advantage that the stainless steel fiber is centralized in the high-temperature resistant filter surface layer in contact with electrostatic dust, so that higher antistatic performance can be achieved under the condition of lower cost input.
Description
Technical field
The utility model relates to non-weaving cloth air filtration applications field, specifically a kind of high-temperature resistant and antistatic needled filtering felt.
Background technology
Needled filtering felt in that non-woven field is made with the acupuncture technology is mainly used in the flue gas ash removal field.All need use the needled filtering felt material at industrial circles such as iron and steel, smelting, electric power, cement, chemical industry, electronics, pharmacy, use very extensively.The employed coal-burning boiler of these industries; Coal can produce amounts of dust and dirt particle after burning; These dust will produce high load capacity static through mutual collision and friction; And the exhaust gas dust particle of a large amount of static electrifications can have a strong impact on the ash-removal effect of needled filtering felt, and static can produce the suction-operated of secondary dust in the deashing process of flue gas ash removal, therefore greatly reduces the cleaning efficiency of dedusting.Also have a kind of harm in this external some special coal-fired flue-gas operating mode, that is exactly the static methane CH4 gas in the gas that also can ignite, and in these special flue gas ash removal operating modes, must eliminate all harm that static brings.
Existing high-temperature resistant and antistatic needled filtering felt; Its structure comprises high temperature resistant fibrage, high temperature resistant base cloth layer and the high temperature resistant fibrage down gone up that is superimposed successively; It is mixed with carbon fiber or stainless steel fiber in high temperature resistant base cloth layer; Make it when using, have electric action, but be sandwiched in high temperature resistant fibrolaminar centre up and down owing to have the base cloth layer of stainless steel fiber, its needled filtering felt surface conductance performance has only 10
6-10
12Ω cm in the exhaust gas dust operating mode of some high static, does not have electric action at all, and antistatic property is very poor.
The high-temperature resistant and antistatic needled filtering felt that also has another kind of structure; Its structure also is to comprise high temperature resistant fibrage, high temperature resistant base cloth layer and the high temperature resistant fibrage down gone up that is superimposed successively; It adds a spot of stainless steel fibre in fibrage and the high temperature resistant down fibrage on high temperature resistant; So just cause following problem: 1) base cloth layer is consistent with fibrolaminar fiber fineness up and down, can not satisfy the high filtering precision of flue gas ash removal; 2) go up fibrage and all be mixed with stainless steel fibre with following fibrage, low as if the mixing ratio of stainless steel fibre, then do not reach antistatic requirement, in order to reach antistatic requirement, can only improve the mixing ratio of stainless steel fibre, this cost that just causes dropping into is higher.
The utility model content
The purpose of the utility model provides a kind of antistatic needled filtering felt of novel fire resistant with good, the low-cost input of antistatic property, high filtering precision.
In order to address the above problem, the utility model adopts following technical scheme:
The antistatic needled filtering felt of a kind of novel fire resistant comprises superimposed successively high temperature resistant filtration top layer, high temperature resistant median fiber layer, high temperature resistant base cloth layer and high temperature resistant fibrage down; Above-mentioned high temperature resistant filtration top layer is the high temperature resistant superfine fibre layer that is mixed with stainless steel fibre, the fibre fineness≤1D of this is high temperature resistant superfine fibre layer, and the mixing ratio of above-mentioned stainless steel fibre is 5-15%.
The fibre fineness of above-mentioned high temperature resistant median fiber layer is 1.1-2D.
Above-mentioned high temperature resistant base cloth layer is long filament base cloth or short yarn base cloth, and grammes per square metre is 100-200/m
2
Above-mentioned high temperature resistant fibrolaminar fibre fineness down is 2.2-5D.
After adopting such scheme, the antistatic needled filtering felt of a kind of novel fire resistant of the utility model, because the fiber in the high temperature resistant filtration top layer adopts superfine fibre, it is high therefore to have higher smoke filtration precision; And; With respect in the prior art up and down fibrage all be mixed with the practice of stainless steel fibre; The utility model concentrates on the high temperature resistant filtration top layer that contacts with ELECTROSTATIC DUST with stainless steel fibre, under the lower situation of cost input, still has higher antistatic property.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
The antistatic needled filtering felt of a kind of novel fire resistant of the utility model, as shown in Figure 1, comprise superimposed successively high temperature resistant filtration top layer 1, high temperature resistant median fiber layer 2, high temperature resistant base cloth layer 3 and high temperature resistant fibrage 4 down.
High temperature resistant filtration top layer 1 is for being mixed with the high temperature resistant superfine fibre layer of stainless steel fibre, that is, high temperature resistant filtration top layer 1 is processed by the composite material of stainless steel fibre and high temperature resistant superfine fibre; This is high temperature resistant, and superfine fibre adopts polyphenylene sulfide fibre, polytetrafluoroethylene fibre, pi fiber or inclined to one side aramid fibre; Fibre fineness≤the 1D of this high temperature resistant superfine fibre, length is 20-60mm, mixing ratio is 85-95%; The fibre fineness of stainless steel fibre is 2-5D, and length is 20-60mm, and mixing ratio is 5-15%.
High temperature resistant median fiber layer 2 adopts fibers such as polyphenylene sulfide, polytetrafluoroethylene (PTFE), pi or inclined to one side aromatic polyamides, and this fibre fineness is 1.1-2d, and length is 20-60mm.
High temperature resistant base cloth layer 3 adopts high temperature resistant long filament base cloth or high temperature resistant short yarn base cloth, and grammes per square metre is 100-200/m
2
High temperature resistant fibrage down adopts fibers such as polyphenylene sulfide, polytetrafluoroethylene (PTFE), pi, inclined to one side aromatic polyamides, and this fibre fineness is 2.2-5d, and length is 20-60mm.
The high-temperature resistant and antistatic needled filtering felt of the utility model, the antistatic property on it is high temperature resistant filtration top layer 1 reaches 10
2-10
3Ω cm, flue gas entered precision≤30mg/m during its operating mode was used
3
Claims (4)
1. the antistatic needled filtering felt of novel fire resistant is characterized in that: comprise superimposed successively high temperature resistant filtration top layer, high temperature resistant median fiber layer, high temperature resistant base cloth layer and high temperature resistant fibrage down; Above-mentioned high temperature resistant filtration top layer is the high temperature resistant superfine fibre layer that is mixed with stainless steel fibre, the fibre fineness≤1D of this is high temperature resistant superfine fibre layer, and the mixing ratio of above-mentioned stainless steel fibre is 5-15%.
2. the antistatic needled filtering felt of a kind of novel fire resistant according to claim 1 is characterized in that: the fibre fineness of above-mentioned high temperature resistant median fiber layer is 1.1-2D.
3. the antistatic needled filtering felt of a kind of novel fire resistant according to claim 1 is characterized in that: above-mentioned high temperature resistant base cloth layer is long filament base cloth or short yarn base cloth, and grammes per square metre is 100-200/m
2
4. the antistatic needled filtering felt of a kind of novel fire resistant according to claim 1 is characterized in that: above-mentioned high temperature resistant fibrolaminar fibre fineness down is 2.2-5D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201387073U CN202207512U (en) | 2009-05-27 | 2009-05-27 | Novel high-temperature resistant and antistatic needle-punched filter felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201387073U CN202207512U (en) | 2009-05-27 | 2009-05-27 | Novel high-temperature resistant and antistatic needle-punched filter felt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202207512U true CN202207512U (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201387073U Expired - Fee Related CN202207512U (en) | 2009-05-27 | 2009-05-27 | Novel high-temperature resistant and antistatic needle-punched filter felt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202207512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485924A (en) * | 2017-09-07 | 2017-12-19 | 江苏至臻环保科技有限公司 | A kind of waste incineration station anti-static inflaming-retarding needled filtering felt and its manufacture method |
-
2009
- 2009-05-27 CN CN2009201387073U patent/CN202207512U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485924A (en) * | 2017-09-07 | 2017-12-19 | 江苏至臻环保科技有限公司 | A kind of waste incineration station anti-static inflaming-retarding needled filtering felt and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel high-temperature resistant and antistatic needle-punched filter felt Effective date of registration: 20151118 Granted publication date: 20120502 Pledgee: Bank of China Limited by Share Ltd Jinjiang branch Pledgor: Fujian Xinhua Co., Ltd. Registration number: 2015350000087 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170712 Granted publication date: 20120502 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20190527 Granted publication date: 20120502 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20180527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |