CN202638141U - Composite needle filtering felt - Google Patents
Composite needle filtering felt Download PDFInfo
- Publication number
- CN202638141U CN202638141U CN 201220068215 CN201220068215U CN202638141U CN 202638141 U CN202638141 U CN 202638141U CN 201220068215 CN201220068215 CN 201220068215 CN 201220068215 U CN201220068215 U CN 201220068215U CN 202638141 U CN202638141 U CN 202638141U
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- Prior art keywords
- terylene
- base cloth
- polypropylene fiber
- polypropylene
- fiber composite
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Abstract
The utility model discloses a composite needle filtering felt. A glass fiber base cloth layer (1) is applied as a base; each of the upper and lower surfaces of the glass fiber base cloth layer (1) is provided with a terylene and polypropylene fiber composite layer (2); the terylene and polypropylene fiber composite layer (2) comprises two fibers of terylene and polypropylene fibers which are combined in layers; the upper and lower external surfaces of the terylene and polypropylene fiber composite layer (2) are covered by PTFE dipping coatings (3). According to the utility model, the composite needle filtering felt is high temperature resistant, the air permeability is good, the radial and latitude breaking tenacity is high, the percentage elongation is small, the usage life is long, cost is low, and the dedusting usage requirement in the harsh mining environment in the present ceramic industry is satisfied.
Description
Technical field
The utility model relates to the filtering material that a kind of ceramic industry is used, and relates in particular to a kind of composite needled filter felt.
Background technology
At present domestic all at a large amount of development and application bag type dust removing technologies, aspect acupuncture filter material, just towards multiple material, multiple processing spinning-drawing machine future development.The PO PE NT PTFE that existing ceramic industry is used roughly has three kinds: the first is to adopt the acupuncture filter cloth product of the acrylic procedure of fibre production of Japanese import, its formal name used at school is the homo-polypropylene nitrile, only have at present Japan to produce, its price is extremely expensive, ceramic industry itself is low value-added industry, and the fiber product of filter bag dependence on import has increased the weight of business burden, and production cost strengthens, and there is crisis in Business survival; The second product is the polypropylene fibre Nomex, and greatly shorten service life in the industrial and mineral of ceramic industry owing to its lower heatproof (heatproof only has 90 degree) performance causes, and is not suitable for the industrial and mineral condition of ceramic industry; And the third filtering material is the terylene needled felt filtrate, its heat resistance has reached the industrial and mineral requirement of ceramic industry, but its anti acid alkali performance can but not satisfy, and the acid and alkali-resistance characteristic of ceramic industry must reach excellent, be between the pH value 2-14, it has also hindered the Production of Ceramics process.
As from the foregoing, existing ceramic industry filtering material all is the instructions for use that single index can satisfy the industrial and mineral condition, and combination property is far apart from the instructions for use of ceramic industry industrial and mineral condition.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of high temperature resistant, and aeration is good, high through the broadwise fracture strength, and percentage elongation is little, long service life, low cost, the composite needled filter felt of suitable ceramic industry industrial and mineral condition.
For achieving the above object, the technological means that the utility model adopts is, a kind of composite needled filter felt, take the glass fibre base cloth layer as support, upper and lower surface at the glass fibre base cloth layer is provided with terylene and polypropylene fiber composite bed, described terylene and polypropylene fiber composite bed are by terylene and two kinds of fibre layered being composited of polypropylene fiber, and described terylene and polypropylene fiber composite bed up and down outer surface are coated with PTFE (polytetrafluoroethylene (PTFE)) dipping clad.
The beneficial effects of the utility model are: inherited the good characteristic of terylene, polypropylene fibre, improved the high temperature resistant and acid and alkali-resistance characteristic of fiber in the industrial and mineral environment, reduced the cost that filtrate relies on single acrylic import fiber; As base cloth, greatly improved intensity index and the tensile strength of filtrate felt body with glass fibre, reduced than the import fiber cost, life cycle is longer, can satisfy the instructions for use that the existing abominable industrial and mineral environment of ceramic industry gathers dust.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is structural representation of the present utility model;
Among the figure: 1, glass fibre base cloth layer, 2, terylene and polypropylene fiber composite bed, 3, PTFE floods clad.
The specific embodiment
As shown in Figure 1, a kind of composite needled filter felt, formed by glass fibre base cloth layer 1, terylene and polypropylene fiber composite bed 2 and PTFE dipping clad 3, the upper and lower surface of glass fibre base cloth layer 1 is provided with terylene and polypropylene fiber composite bed 2, terylene and the polypropylene fiber composite bed 2 outer PTFE dipping clads 3 that are coated with.Its process route is: terylene, polypropylene fiber → shredding → combing → one-tenth net → glass fibre base cloth → terylene, polypropylene fiber → shredding → combing → one-tenth net → pre-needling → main acupuncture → singe → calendering → dipping → finished product.
Above-mentioned dipping adopts the PTFE dipping method to process; terylene, polypropylene fiber fully mixed and take glass fibre as base cloth; glass fibre base cloth, terylene, polypropylene fiber surface layer wrap up dipping fully again; after high-temperature shaping is processed; be completed into diaphragm in felt body inside and surface, not only reach the effect of resist chemical but also increased the purpose that fine dust is collected.
The method that the utility model is taked the to mix Nomex that is composited, base cloth is take glass fibre as main, and it is compound that surface layer respectively accounts for the certain proportion stratiform with terylene, polypropylene fibre, carries out acupuncture and form; After compound, guaranteed the winding of felt body and base cloth, namely strengthened felt body intensity.Polypropylene fibre and terylene are are fully mixed and stirred and impose the glass fibre base cloth, make the physicochemical property of polypropylene fibre and terylene be able to abundant complementation, reduce the risk because of chemical attack, take stratiform to be compounded to form three-dimensional structure, guarantee the winding of felt body and base cloth, increased brute force.Impregnation process finally by crossing the PTFE emulsion has realized the second protection of fibrofelt body has been strengthened its ability high temperature resistant and resist chemical, and PM2.5 even finer dust have been realized filtering and the effect of separating.According to general experiment condition, the Nomex filtrate Experimental Comparison situations such as the utility model and polypropylene fibre, terylene, acrylic are as shown in the table.
The advantage that the utlity model has is as follows: 140 ℃ of heatproof Du Keda; Gas permeability remains on 16m
3/ m
2/ min can catch below the fine dust particle PM2.5; Through the broadwise fracture strength up to 1400N/5X20CM; Through the broadwise elongation at break all less than 7%; Be 5-8 times of existing procucts service life; Can satisfy the needs that the abominable industrial and mineral environment of ceramic industry gathers dust fully.
Claims (1)
1. composite needled filter felt, it is characterized in that, take glass fibre base cloth layer (1) as relying on, upper and lower surface at glass fibre base cloth layer (1) is provided with terylene and polypropylene fiber composite bed (2), and described terylene and polypropylene fiber composite bed (2) up and down outer surface are coated with PTFE dipping clad (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220068215 CN202638141U (en) | 2012-02-29 | 2012-02-29 | Composite needle filtering felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220068215 CN202638141U (en) | 2012-02-29 | 2012-02-29 | Composite needle filtering felt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202638141U true CN202638141U (en) | 2013-01-02 |
Family
ID=47407323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220068215 Expired - Fee Related CN202638141U (en) | 2012-02-29 | 2012-02-29 | Composite needle filtering felt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202638141U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441854A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气集团公司 | Oil absorption felt material with skin/core composite structure |
| CN115304082A (en) * | 2022-10-11 | 2022-11-08 | 山东鲁泰化学有限公司 | Process for recovering NaCl in salt mud for chlor-alkali production |
-
2012
- 2012-02-29 CN CN 201220068215 patent/CN202638141U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441854A (en) * | 2013-09-13 | 2015-03-25 | 中国石油天然气集团公司 | Oil absorption felt material with skin/core composite structure |
| CN115304082A (en) * | 2022-10-11 | 2022-11-08 | 山东鲁泰化学有限公司 | Process for recovering NaCl in salt mud for chlor-alkali production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20200229 |