NL8502153A - METHOD FOR MANUFACTURING A FILTER MEDIUM, PARTICULARLY FOR MIST AND DUST REMOVERS - Google Patents
METHOD FOR MANUFACTURING A FILTER MEDIUM, PARTICULARLY FOR MIST AND DUST REMOVERS Download PDFInfo
- Publication number
- NL8502153A NL8502153A NL8502153A NL8502153A NL8502153A NL 8502153 A NL8502153 A NL 8502153A NL 8502153 A NL8502153 A NL 8502153A NL 8502153 A NL8502153 A NL 8502153A NL 8502153 A NL8502153 A NL 8502153A
- Authority
- NL
- Netherlands
- Prior art keywords
- fiber
- filter medium
- bed
- fibers
- mist
- Prior art date
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2003—Glass or glassy material
- B01D39/2017—Glass or glassy material the material being filamentary or fibrous
- B01D39/202—Glass or glassy material the material being filamentary or fibrous sintered or bonded by inorganic agents
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Filtering Materials (AREA)
- Nonwoven Fabrics (AREA)
Description
• ; i»:, r 853078/Ke/ki•; 853078 / Ke / ki
Korte aanduiding: Werkwijze voor de vervaardiging van een filtermedium, in het bijzonder voor nevel- en stofverwijderaars.Short designation: Process for the production of a filter medium, in particular for mist and dust removers.
De uitvinding heeft betrekking op de vervaardiging van een filtermedium dat bestaat uit glasvezels en speciaal bestemd is voor het ontneve-len en het verwijderen van stof uit fluida bij hoge temperatuuromstandig-heden en bij aanwezigheid van een chemisch corrosief materiaal.The invention relates to the manufacture of a filter medium consisting of glass fibers and which is specially intended for the disintegration and removal of dust from fluids at high temperature conditions and in the presence of a chemically corrosive material.
5 Er zijn voor dit doel filtermedia bekend die bestaan uit verschillen de vezels, die een vervilt vezelbed vormen dat geplaatst wordt in manden of cassettes met opengewerkte wanden, waardoor het te reinigen fluidum door het daarbinnen geplaatste medium kan stromen.For this purpose filter media are known which consist of different fibers, which form a felted fiber bed which is placed in baskets or cassettes with openwork walls, through which the fluid to be cleaned can flow through the medium placed therein.
Het produceren van een dergelijk filtermedium is moeilijk wat beid treft het verkrijgen van een vereist uniform dichtgepakt bed, de breekbaarheid van vezels, bijvoorbeeld glasvezels, het verkruimelen ervan en het door elkaar raken, waardoor de stromingsweerstand ongunstig wordt beinvloed.Producing such a filter medium is difficult, both in obtaining a required uniformly packed bed, the fragility of fibers, e.g., glass fibers, crumbling and shattering, thereby adversely affecting flow resistance.
Om nevel en stof te verwijderen uit fluida die chemisch corrosieve 15 materialen bevatten, worden filtermedia geproduceerd uit polyamidevezels, uit- PTFE, alsmede uit glasvezels die bijvoorbeeld bedekt zijn met grafiet of met siliconen, en zo gevormd dat een bed ontstaat met een dikte zoals die nodig is om daarna een naaldbehandeling te ondergaan om de structuur stabiel te maken. Aldus verkregen filtermedia zijn echter duur, en het 20 gebruik ervan is beperkt tot temperatuuromstandigheden die geen aanleiding geven tot vernietiging of vervorming van het vezelmateriaal waaruit ze bestaan.To remove mist and dust from fluids containing chemically corrosive materials, filter media are produced from polyamide fibers, from PTFE, as well as from glass fibers, for example, coated with graphite or silicone, and formed to form a bed with a thickness such as that needed to undergo needle treatment afterwards to make the structure stable. Filter media thus obtained are expensive, however, and their use is limited to temperature conditions which do not give rise to destruction or deformation of the fiber material of which they consist.
De uitvinding heeft ten doel de genoemde bezwaren te ondervangen door het verschaffen van een vervaardigingsmethode voor een filtermedium dat 25 bestand is tegen chemische corrosie en hoge temperatuur, en dat een gelijkmatige pakdichtheid heeft en dus een lage differentiatie van stromings-weerstanden.The object of the invention is to obviate the said drawbacks by providing a manufacturing method for a filter medium which is resistant to chemical corrosion and high temperature, and which has a uniform packing density and thus a low differentiation of flow resistances.
Volgens de uitvinding wordt dit doel bereikt door het verschaffen van een werkwijze die bestaat uit het tevoren versnijden van de glasvezels 30 tot lengten van 30 to 50 mm, ze dan te weken bij 300 tot 450°C gedurende een tijd die nodig is om zeker te stellen dat het vezelpreparaat thermisch wordt verwijderd. Aldus bereid glasvezel wordt dan gemengd met polyester vezels, waarvan de hoeveelheid 15 tot 40 gew.?ó bedraagt, gebaseerd op het glasvezelgewicht, waarbij de polyestervezels een middellijn hebben die 35 dicht ligt bij de gebruikte glasvezels. Nadat beide vezels grondig met elkaar zijn gemengd, wordt er een vezelbed uit gevormd, dat dan wordt gecompacteerd, zodat het 5 tot 20 mm dik wordt, waarna het bed wordt verenigd door een naaldbehandeling, en het aldus verkregen filtermedium ifl215 3 ϋύίίΐΚιΙιιυ,..According to the invention, this object is achieved by providing a method consisting of pre-cutting the glass fibers 30 to lengths from 30 to 50 mm, then soaking them at 300 to 450 ° C for a time necessary to ensure state that the fiber composition is thermally removed. Glass fiber so prepared is then mixed with polyester fibers, the amount of which is from 15 to 40% by weight, based on the glass fiber weight, the polyester fibers having a diameter close to the glass fibers used. After both fibers are thoroughly mixed together, a fiber bed is formed from it, which is then compacted so that it becomes 5 to 20 mm thick, after which the bed is joined by a needle treatment, and the filter medium thus obtained ifl215 3 ϋύίίΐΚιΙιιυ, ..
-2- \i/ordt blootgesteld aan een hoge temperatuur die nauwelijks voldoende is om de polyestervezels te vernietigen.-2- is exposed to a high temperature which is barely sufficient to destroy the polyester fibers.
Het filtermedium volgens de uitvinding kan mechanisch worden gewapend tijdens de vorming van een vezelbed door toevoeging van een doek of 5 gaas dat bestaat uit materiaal dat bestand is tegen de werkomstandigheden van het filtermedium, welk doek of gaas geplaatst wordt aan één kant of aan beide kanten van het vezelbed, of tussen twee van dergelijke bedden en dan ermee verbonden met gebruikmaking van een bekende werkwijze, bijvoorbeeld door stikken.The filter medium according to the invention can be mechanically reinforced during the formation of a fiber bed by adding a cloth or gauze consisting of material resistant to the working conditions of the filter medium, which cloth or mesh is placed on one side or on both sides of the fiber bed, or between two such beds and then connected to it using a known method, for example by stitching.
.10 De werkwijze volgens de uitvinding wordt nader beschreven aan de hand van de volgende voorbeelden:.10 The method according to the invention is further described by the following examples:
Voorbeeld 1.Example 1.
1 gewichtsdeel glasvezel, van 8 ym diameter, gesneden tot lengten van ongeveer 50 mm, en 2 gewichtsdelen glasvezel, van 10 ym middellijn, gesne-15 den tot lengten van ongeveer 40 mm, en 2 gewichtsdelen glasvezel, van 15 ym middellijn, gesneden tot lengten van ongeveer 50 mm, worden gedrenkt bij 420°C gedurende 1 uur, en dan worden polyestervezels toegevoegd van 15 ym middelijn, waarvan de hoeveelheid 20gewichts?ó is op basis van de glasvezels. Nadat die componenten met elkaar zijn gemengd, wordt een vezelbed 20 gevormd, bij voorkeur in de luchtstroom, welk bed wordt gecompacteerd en een naaldbehandeling ondergaat aan de ene kant, driemaal, waardoor een bed wordt verkregen met een dikte van 10 mm door middel van 100 steken per 1 cm2. Een aldus gemaakt bed wordt verbrand, waarbij de brandtempera-tuur vernietiging mogelijk maakt van het additief van polyestervezels, en 25 zo wordt een filtermedium verkregen.1 part by weight of fiberglass, of 8 µm diameter, cut to lengths of about 50 mm, and 2 parts by weight of glass fiber, of 10 µm diameter, cut to lengths of about 40 mm, and 2 parts by weight of glass fiber, of 15 µm diameter, cut to lengths of about 50 mm, are soaked at 420 ° C for 1 hour, and then polyester fibers of 15 µm of medium are added, the amount of which is 20% by weight based on the glass fibers. After those components are mixed together, a fiber bed 20 is formed, preferably in the air stream, which bed is compacted and needle-treated on one side, three times, thereby obtaining a bed with a thickness of 10 mm by means of 100 stitches per 1 cm2. A bed thus made is burned, the fire temperature allowing destruction of the polyester fiber additive, thus obtaining a filter medium.
Voorbeeld 2.Example 2.
Glasvezel, van 20 ym middellijn, wordt gesneden tot lengten van ongeveer 40mm en gedrenkt bij 450°C gedurende 30 minuten. De aldus voorbehandelde glasvezels worden dan gemengd met polyestervezels van 20 ym middellijn, 30 waarbij de hoeveelheid polyestervezels ongeveer 30 gew.Si is op basis van het gewicht van de glasvezels, en uit dit mengsel wordt een vezelbed gevormd in de luchtstroom, welk vezelbed dan wordt gecompacteerd en tweemaal een behandeling ondergaat door middel van 150 steken per lcm2, aan beide zijden afzonderlijk, waardoor een vezelbed van 6mm dikte wordt 35 verkregen. Het aldus geproduceerde vezelbed wordt verbrand bij een temperatuur die vernietiging mogelijk maakt van het additief van polyestervezels, waarna er een doek van glasvezels op wordt gelegd en ermee verbonden door stikken.Fiberglass, 20 µm diameter, is cut to lengths of about 40mm and soaked at 450 ° C for 30 minutes. The glass fibers thus pretreated are then mixed with 20 µm diameter polyester fibers, the amount of polyester fibers being about 30 wt. Si based on the weight of the glass fibers, and from this mixture a fiber bed is formed in the air stream, which fiber bed is then compacted and twice treated by 150 stitches per lcm2, on both sides separately, thereby obtaining a fiber bed of 6mm thickness. The fiber bed thus produced is burned at a temperature which allows destruction of the polyester fiber additive, after which a glass fiber cloth is placed on it and joined by stitching.
Een op de wijze volgens de uitvinding verkregen filtermedium is zeer ' '* ' J f» · .. / A Λ .‘V ? .. j “s/ is/ -> ·ψ ...... 'Λ -3- efficient en gemakkelijk in het gebruik, in het bijzonder vertoont het een toegenomen warmtebestendigheid en mechanische sterkte, alsmede een structuur die lagere stromingsweerstandswaarden mogelijk maakt dan de waarden die vroeger werden verkregen bij dergelijke media.A filter medium obtained in the manner according to the invention is very high. .. j “s / is / -> · ψ ...... 'Λ -3- efficient and easy to use, in particular it exhibits increased heat resistance and mechanical strength, as well as a structure that allows lower flow resistance values than the values previously obtained from such media.
85021338502133
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08517077A GB2177127A (en) | 1985-07-05 | 1985-07-05 | Method of manufacturing a filter medium |
GB8517077 | 1985-07-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL8502153A true NL8502153A (en) | 1987-02-16 |
Family
ID=10581859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8502153A NL8502153A (en) | 1985-07-05 | 1985-07-29 | METHOD FOR MANUFACTURING A FILTER MEDIUM, PARTICULARLY FOR MIST AND DUST REMOVERS |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2177127A (en) |
NL (1) | NL8502153A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2144340B1 (en) * | 1997-02-19 | 2001-01-01 | Aplister Sa | PROCEDURE FOR MANUFACTURING FILTERS FOR POOL WATER, AND RESULTING FILTER. |
CN105365305A (en) * | 2014-08-27 | 2016-03-02 | 徐珂 | Glass fiber and polyester composite needle-punched felt and manufacturing method thereof |
-
1985
- 1985-07-05 GB GB08517077A patent/GB2177127A/en not_active Withdrawn
- 1985-07-29 NL NL8502153A patent/NL8502153A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
GB2177127A (en) | 1987-01-14 |
GB8517077D0 (en) | 1985-08-14 |
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BV | The patent application has lapsed |