FR2835168A1 - FILTER FOR COOKING APPLIANCE OR KIT - Google Patents
FILTER FOR COOKING APPLIANCE OR KIT Download PDFInfo
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- FR2835168A1 FR2835168A1 FR0201104A FR0201104A FR2835168A1 FR 2835168 A1 FR2835168 A1 FR 2835168A1 FR 0201104 A FR0201104 A FR 0201104A FR 0201104 A FR0201104 A FR 0201104A FR 2835168 A1 FR2835168 A1 FR 2835168A1
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- gaseous effluent
- filter according
- activated carbon
- effluent filter
- fibers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/38—Parts, details or accessories of cooking-vessels for withdrawing or condensing cooking vapors from cooking utensils
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- 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
- B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
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- 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
- B01D39/2055—Carbonaceous material
- B01D39/2058—Carbonaceous material the material being particulate
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- 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
- B01D39/2055—Carbonaceous material
- B01D39/2065—Carbonaceous material the material being fibrous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28028—Particles immobilised within fibres or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
- B01J20/28035—Membrane, sheet, cloth, pad, lamellar or mat with more than one layer, e.g. laminates, separated sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/2805—Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0216—Bicomponent or multicomponent fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0414—Surface modifiers, e.g. comprising ion exchange groups
- B01D2239/0428—Rendering the filter material hydrophobic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0457—Specific fire retardant or heat resistant properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/064—The fibres being mixed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1241—Particle diameter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/304—Linear dimensions, e.g. particle shape, diameter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0415—Beds in cartridges
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Food Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filtering Materials (AREA)
Abstract
Description
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B. 05483
FILTRE POUR APPAREIL OU USTENSILE DE CUISSON La présente invention se rapporte au domaine technique général des appareils ou ustensiles de cuisson. La présente invention concerne plus particulièrement les filtres pour effluents gazeux. La présente invention s'applique notamment, mais non exclusivement, aux friteuses, aux fours, ou aux couvercles utilisés pour la cuisson. B. 05483
The present invention relates to the general technical field of cooking appliances or utensils. The present invention relates more particularly to filters for gaseous effluents. The present invention applies in particular, but not exclusively, to fryers, ovens, or lids used for cooking.
Pour traiter les odeurs des effluents gazeux dégagés lors de la cuisson, il est connu d'utiliser des filtres à charbon actif. Ces filtres sont constitués de particules de charbon actif contenues dans une enveloppe en matière perméable, ladite enveloppe étant usuellement disposée dans un boîtier rigide ajouré. La taille des particules de charbon actif est de l'ordre de quelques millimètres de diamètres. Les particules peuvent présenter des formes régulières, par exemple sphériques ou cylindriques, ou des formes irrégulières, pouvant être obtenues par concassage. De tels filtres sont relativement efficaces, mais présentent toutefois un certain nombre d'inconvénients. Tout d'abord, le volume d'un tel filtre est relativement important. En effet, l'efficacité du traitement dépend de l'épaisseur du filtre. La surface du filtre doit être suffisante pour permettre l'évacuation des effluents. De plus, la durée de vie d'un tel filtre est limitée. Dans le cas d'une friteuse, les performances de filtration commencent généralement à se dégrader de manière notoire après une trentaine de cuisson. En outre, de tels filtres doivent être retirés de l'appareil avant le nettoyage à la main ou le passage au lave vaisselle de la partie de l'appareil logeant le filtre. To treat the odors of the gaseous effluents released during cooking, it is known to use activated carbon filters. These filters consist of activated carbon particles contained in an envelope of permeable material, said envelope usually being arranged in a perforated rigid housing. The size of the activated carbon particles is of the order of a few millimeters in diameter. The particles may have regular shapes, for example spherical or cylindrical, or irregular shapes, which can be obtained by crushing. Such filters are relatively effective, but however have a number of drawbacks. First of all, the volume of such a filter is relatively large. Indeed, the effectiveness of the treatment depends on the thickness of the filter. The surface of the filter must be sufficient to allow the evacuation of effluents. In addition, the service life of such a filter is limited. In the case of a fryer, the filtration performance generally begins to deteriorate markedly after about thirty cooking. In addition, such filters must be removed from the device before cleaning by hand or placing in the dishwasher the part of the device housing the filter.
Des filtres métalliques lavables sont connus, mais leurs performances de filtration sont médiocres pour traiter les odeurs des effluents gazeux tels que ceux d'une friteuse. Washable metal filters are known, but their filtration performance is poor for treating the odors of gaseous effluents such as those of a fryer.
L'objet de la présente invention est de proposer un filtre à effluents gazeux pour appareil ou ustensile de cuisson, permettant une filtration efficace avec un encombrement réduit. The object of the present invention is to provide a gaseous effluent filter for a cooking appliance or utensil, allowing efficient filtration with a reduced bulk.
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Un autre objet de la présente invention est de proposer un filtre à effluents gazeux pour appareil ou ustensile de cuisson, présentant une durée de vie améliorée. Another object of the present invention is to provide a gaseous effluent filter for a cooking appliance or utensil, having an improved lifetime.
Un autre objet de la présente invention est de proposer un filtre à effluents gazeux pour appareil ou ustensile de cuisson, susceptible d'être lavé. Another object of the present invention is to provide a gaseous effluent filter for a cooking appliance or utensil, capable of being washed.
Ces objets sont atteints avec un filtre à effluents gazeux pour appareil ou ustensile de cuisson, comprenant des particules de charbon actif, du fait qu'il comporte un média filtrant dans lequel les particules de charbon actif sont maintenues par un réseau de fibres multi-composants présentant une enveloppe thermofusible. De telles fibres comportent par exemple une âme en matériau thermodurcissable tel que le polyester et une enveloppe en matériau thermofusible tel que le polyéthylène. Un traitement thermique à une température supérieure à la température de fusion de l'enveloppe permet lors du refroidissement d'obtenir des liaisons mécaniques durables aux points de contact entre deux fibres multi-composants ou entre une fibre multicomposants et une particule de charbon actif. Les fibres multi-composants constituent l'ossature d'un réseau contenant des particules de charbon actif, formant ainsi un média filtrant. These objects are achieved with a gaseous effluent filter for a cooking appliance or utensil, comprising activated carbon particles, because it comprises a filtering medium in which the activated carbon particles are maintained by a network of multi-component fibers. having a hot melt envelope. Such fibers comprise, for example, a core of thermosetting material such as polyester and an envelope of thermofusible material such as polyethylene. Heat treatment at a temperature higher than the melting temperature of the envelope allows, during cooling, to obtain durable mechanical connections at the points of contact between two multi-component fibers or between a multicomponent fiber and an activated carbon particle. The multi-component fibers constitute the framework of a network containing particles of activated carbon, thus forming a filtering medium.
Avantageusement les particules de charbon actif présentent au moins une dimension inférieure à 0,1 mm et au moins une dimension supérieure à 0,5 mm. Ces dispositions permettent d'obtenir une surface active importante rapportée au volume des particules, tout en permettant d'assurer l'accrochage par les fibres à enveloppe thermofusible. Advantageously, the activated carbon particles have at least one dimension less than 0.1 mm and at least one dimension greater than 0.5 mm. These arrangements make it possible to obtain a large active surface area related to the volume of the particles, while ensuring attachment by the fibers with a hot-melt envelope.
Selon un mode de réalisation avantageux, les particules de charbon actif sont au moins en partie constituées de fibres de carbone activées. Les fibres de carbone activées présentent des caractéristiques d'adsorption supérieures à celles obtenues du charbon actif en grains. De plus, leur géométrie et leurs dimensions permettent de n'utiliser qu'une faible partie de leur surface pour l'accrochage des fibres multi-composants. D'autres géométries sont toutefois envisageables, telles que notamment des poudres ou des microbilles. According to an advantageous embodiment, the activated carbon particles are at least partly made up of activated carbon fibers. Activated carbon fibers have higher adsorption characteristics than those obtained from granular activated carbon. In addition, their geometry and their dimensions make it possible to use only a small part of their surface for the attachment of multi-component fibers. Other geometries can however be envisaged, such as in particular powders or microbeads.
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La proportion massique de particules de charbon actif dans le média filtrant est avantageusement comprise entre 1 et 50%, et de préférence comprise entre 10 et 50%. The mass proportion of activated carbon particles in the filtering medium is advantageously between 1 and 50%, and preferably between 10 and 50%.
Avantageusement, la température de fusion de l'enveloppe thermofusible est supérieure ou égale à 105 C. Cette disposition permet de limiter le ramollissement de l'enveloppe fusible lors du passage de vapeur. Advantageously, the melting temperature of the hot-melt envelope is greater than or equal to 105 C. This arrangement makes it possible to limit the softening of the fusible envelope during the passage of steam.
Avantageusement encore, la température de fusion de l'enveloppe thermofusible est supérieure ou égale à 1200C. Cette disposition permet d'obtenir une meilleure tenue des liaisons entre les fibres et les particules lors du passage de vapeur. Advantageously also, the melting temperature of the hot-melt envelope is greater than or equal to 1200C. This arrangement makes it possible to obtain better resistance of the connections between the fibers and the particles during the passage of steam.
Avantageusement, le diamètre des fibres multi-composants est compris entre 5 et 50 um. Cette disposition permet d'utiliser des particules de charbon actif de taille réduite et ainsi d'obtenir une surface active importante rapportée au volume de matière. Advantageously, the diameter of the multi-component fibers is between 5 and 50 μm. This arrangement makes it possible to use particles of activated carbon of reduced size and thus to obtain a large active surface relative to the volume of material.
Avantageusement, le média filtrant est formé par une feuille perméable aux effluents gazeux. Les différents constituants du média filtrant peuvent être plus ou moins compactés selon l'utilisation souhaitée pour obtenir une feuille perméable aux effluents gazeux. Une telle feuille peut être définie par le grammage des différents constituants, c'est à dire par la masse de constituants rapportée à une surface. Une telle feuille présente une bonne cohésion et peut être manipulée sans précautions particulières. De plus, les opérations de découpe sont particulièrement simples. En alternative, pour une épaisseur plus importante, les fibres et les particules de charbon actif peuvent former une sorte de mousse de matériau perméable aux effluents gazeux. Advantageously, the filtering medium is formed by a sheet permeable to gaseous effluents. The various constituents of the filter medium can be more or less compacted according to the desired use to obtain a sheet permeable to gaseous effluents. Such a sheet can be defined by the grammage of the various constituents, that is to say by the mass of constituents relative to a surface. Such a sheet has good cohesion and can be handled without special precautions. In addition, the cutting operations are particularly simple. Alternatively, for a greater thickness, the fibers and the particles of activated carbon can form a kind of foam of material permeable to gaseous effluents.
Avantageusement, la feuille de matériau perméable comporte entre 5 et
200 g/m2 de particules de charbon actif, et de préférence au moins 25 g/m2, afin d'obtenir une filtration suffisamment efficace. Advantageously, the sheet of permeable material comprises between 5 and
200 g / m2 of activated carbon particles, and preferably at least 25 g / m2, in order to obtain a sufficiently effective filtration.
Selon une caractéristique avantageuse, la feuille perméable est fixée sur un support. Cette disposition permet de faciliter la manipulation du filtre. According to an advantageous characteristic, the permeable sheet is fixed on a support. This arrangement makes it easier to handle the filter.
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Avantageusement alors, la feuille perméable est fixée autour d'une ouverture du support présentant une surface inférieure à 12 cm2. Cette disposition permet de limiter les risques de déchirement de la feuille lors du lavage. Si désiré, plusieurs ouvertures peuvent être envisagées dans le support. Advantageously then, the permeable sheet is fixed around an opening of the support having an area of less than 12 cm 2. This arrangement limits the risk of tearing the sheet during washing. If desired, several openings can be envisaged in the support.
Avantageusement alors, la feuille perméable est fixée au support par surmoulage du support, une telle construction étant économique. Advantageously then, the permeable sheet is fixed to the support by overmolding the support, such a construction being economical.
Selon une forme de réalisation, le média filtrant comporte des fibres thermorésistantes associées aux fibres multi-composants. Les fibres thermorésistantes sont solidarisées par la fusion des enveloppes thermofusibles des fibres multi-composants. L'utilisation conjointe de fibres multi-composants à enveloppe thermofusible et de fibres thermorésistantes permet de limiter l'écrasement du réseau de fibres obtenu après la fusion des enveloppes thermofusibles. Cette disposition permet d'obtenir une meilleure perméabilité. Les fibres thermorésistantes peuvent être par exemple des fibres en matériau thermodurcissable ou en matériau synthétique thermoplastique résistant à la température de fusion de l'enveloppe des fibres multicomposants. According to one embodiment, the filter medium comprises heat-resistant fibers associated with multi-component fibers. The heat-resistant fibers are joined by the fusion of the hot-melt envelopes of the multi-component fibers. The joint use of multi-component fibers with a hot-melt envelope and heat-resistant fibers makes it possible to limit the crushing of the network of fibers obtained after the fusion of the hot-melt envelopes. This arrangement makes it possible to obtain better permeability. The heat-resistant fibers may for example be fibers of thermosetting material or of synthetic thermoplastic material resistant to the melting temperature of the envelope of multicomponent fibers.
Selon une forme de réalisation, la feuille perméable comporte une ou plusieurs couches internes, comprenant des fibres multi-composants et des particules de charbon actif, et deux couches externes comprenant des fibres multicomposants et des fibres thermorésistantes. According to one embodiment, the permeable sheet comprises one or more internal layers, comprising multi-component fibers and particles of activated carbon, and two external layers comprising multi-component fibers and heat-resistant fibers.
Avantageusement alors, le grammage de fibres multi-composants de chacune des couches externes est inférieur au grammage de fibres multi-composants de la couche interne. Cette disposition permet d'obtenir une meilleure perméabilité tout en conservant une bonne résistance mécanique. Advantageously then, the grammage of multi-component fibers of each of the external layers is lower than the grammage of multi-component fibers of the internal layer. This arrangement makes it possible to obtain better permeability while retaining good mechanical strength.
Avantageusement alors, au moins une partie des fibres thermorésistantes présente des propriétés hydrophobes. Cette disposition permet d'éviter la rétention d'eau dans le filtre et ainsi de limiter le risque de chute de condensats dans le bain d'huile d'une friteuse. Advantageously then, at least part of the heat-resistant fibers has hydrophobic properties. This arrangement makes it possible to avoid water retention in the filter and thus to limit the risk of condensate falling in the oil bath of a fryer.
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Avantageusement, le média filtrant comporte entre 20 et 50% en masse de fibres thermorésistantes. Cette disposition permet de concilier une perméabilité et une solidité satisfaisantes avec un coût acceptable. Advantageously, the filter medium comprises between 20 and 50% by mass of heat-resistant fibers. This arrangement makes it possible to reconcile satisfactory permeability and solidity with an acceptable cost.
Avantageusement encore les particules de charbon actif sont catalysées, par exemple avec du sel de platine. Cette disposition prolonge la durée de vie du filtre en facilitant la régénération par lavage. Advantageously also, the particles of activated carbon are catalyzed, for example with platinum salt. This arrangement extends the life of the filter by facilitating regeneration by washing.
L'invention sera mieux comprise à l'étude de l'exemple de réalisation suivant, pris à titre nullement limitatif, concernant un média filtrant et un filtre pour appareil ou ustensile de cuisson tel qu'une friteuse. The invention will be better understood on studying the following exemplary embodiment, taken without any limitation being implied, concerning a filtering medium and a filter for a cooking appliance or utensil such as a fryer.
Le média filtrant est préparé à partir de particules de charbon actif et de fibres multi-composants présentant une enveloppe thermofusible. The filter medium is prepared from activated carbon particles and multi-component fibers with a hot-melt envelope.
De manière avantageuse, les particules de charbon actif proviennent de fibres de carbone activées. Les fibres de carbone peuvent être obtenues, par exemple, par carbonisation de polymères de synthèse de type viscose ou rayonne, ou par carbonisation de fibres naturelles telles que le coton ou le lin. Advantageously, the activated carbon particles come from activated carbon fibers. Carbon fibers can be obtained, for example, by carbonization of synthetic polymers of viscose or rayon type, or by carbonization of natural fibers such as cotton or linen.
Une activation, par exemple par traitement à 1200 C en atmosphère CO2, permet d'augmenter la surface spécifique de manière très importante. La surface spécifique des fibres de carbone activées permet de très bonnes performances d'adsorption. Activation, for example by treatment at 1200 ° C. in a CO2 atmosphere, makes it possible to significantly increase the specific surface. The specific surface of the activated carbon fibers allows very good adsorption performance.
Le diamètre usuel des fibres de carbone est compris entre 3 et 100 pm. De préférence, les fibres sont coupées à une longueur de 1 à 10 mm, et avantageusement de 3 à 5 mm. Les particules de charbon actif ainsi obtenues sont mélangées selon une technique papetière à des fibres multi-composants présentant une enveloppe thermofusible et une âme résistant à des températures supérieures à la température de fusion de l'enveloppe. The usual diameter of carbon fibers is between 3 and 100 μm. Preferably, the fibers are cut to a length of 1 to 10 mm, and advantageously from 3 to 5 mm. The particles of activated carbon thus obtained are mixed according to a papermaking technique with multicomponent fibers having a hot-melt shell and a core resistant to temperatures higher than the melting temperature of the shell.
Pour une utilisation destinée aux friteuses, la température de fusion de l'enveloppe thermofusible est supérieure ou égale à 105 C, et de préférence supérieure ou égale à 120 C. L'enveloppe thermofusible peut notamment être constituée de polyéthylène et/ou de polyéthylène téréphtalate. L'âme peut For a use intended for fryers, the melting temperature of the hot-melt envelope is greater than or equal to 105 C, and preferably greater than or equal to 120 C. The hot-melt envelope can in particular be made of polyethylene and / or polyethylene terephthalate . The soul can
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notamment être constituée de Nylon, de polyamide, de polyester, de polypropylène, de polyéthylène. Le diamètre usuel des fibres multi-composants est compris entre 10 et 50 um. De préférence, les fibres multi-composants sont coupées à une longueur de 1 à 10 mm, et avantageusement de 3 à 5 mm.
in particular be made of nylon, polyamide, polyester, polypropylene, polyethylene. The usual diameter of multi-component fibers is between 10 and 50 μm. Preferably, the multi-component fibers are cut to a length of 1 to 10 mm, and advantageously from 3 to 5 mm.
Les fibres de carbone activées et les fibres multi-composants sont mélangées par voie liquide, déposées puis chauffées à une température supérieure à la température de fusion de l'enveloppe thermofusible. Des liaisons mécaniques sont ainsi obtenues entre une fibre multi-composants et une autre fibre multicomposants ainsi qu'entre une fibre multi-composants et une fibre de carbone. Les différents constituants du média filtrant sont ainsi solidarisés pour former un réseau non tissé. Une compression permet d'obtenir une feuille de matériau filtrant, ou feuille perméable. La perméabilité dépend du grammage des constituants et de l'épaisseur finale. La feuille de matériau filtrant ainsi obtenue peut être manipulée sans risque majeur de dégradation mécanique. The activated carbon fibers and the multi-component fibers are mixed by the liquid route, deposited then heated to a temperature higher than the melting temperature of the hot-melt envelope. Mechanical connections are thus obtained between a multi-component fiber and another multicomponent fiber as well as between a multi-component fiber and a carbon fiber. The various constituents of the filtering medium are thus joined together to form a nonwoven network. Compression provides a sheet of filter material, or permeable sheet. The permeability depends on the grammage of the constituents and the final thickness. The sheet of filter material thus obtained can be handled without major risk of mechanical degradation.
La proportion massique des fibres de carbone activées dans la feuille de matériau filtrant est avantageusement comprise entre 1 et 60%, et de préférence comprise entre 10 et 50%. De préférence, la feuille de matériau filtrant comporte entre 5 et 200 g/m2 de fibres de carbone. La perméabilité à l'air de la feuille de matériau perméable est de préférence supérieure à 500 l/m2/s, et est avantageusement supérieure à 800 t/nr'/s. The mass proportion of activated carbon fibers in the sheet of filtering material is advantageously between 1 and 60%, and preferably between 10 and 50%. Preferably, the filter material sheet comprises between 5 and 200 g / m2 of carbon fibers. The air permeability of the sheet of permeable material is preferably greater than 500 l / m2 / s, and is advantageously greater than 800 t / nr '/ s.
Avantageusement, la feuille de matériau perméable comporte entre 10 et 40% en masse de fibres thermorésistantes autres que des fibres de carbone activées. Les fibres thermorésistantes sont choisies de manière à supporter les températures auxquelles est exposé le matériau perméable filtrant. Des fibres de matériaux synthétiques tels que les polyesters peuvent par exemple convenir. De préférence, les fibres thermorésistantes choisies présentent des propriétés hydrophobes, afin d'éviter la rétention de condensats dans le filtre. Advantageously, the sheet of permeable material comprises between 10 and 40% by mass of heat-resistant fibers other than activated carbon fibers. The heat-resistant fibers are chosen so as to withstand the temperatures to which the permeable filter material is exposed. Fibers of synthetic materials such as polyesters may for example be suitable. Preferably, the chosen heat-resistant fibers have hydrophobic properties, in order to avoid the retention of condensates in the filter.
La fibre EP133 de la société SEPPEC peut par exemple être utilisée. The EP133 fiber from the company SEPPEC can for example be used.
Si désiré, le média filtrant peut comporter plusieurs couches. A titre d'exemple, le média filtrant peut comporter une couche interne comportant entre 50 et 75% If desired, the filter media can have multiple layers. For example, the filtering medium may include an internal layer comprising between 50 and 75%
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en masse de fibres de carbone activées, et entre 25% et 50% en masse de fibres multi-composants, ainsi que deux couches externes comportant entre 0 et 50% en masse de fibres de carbone activées, entre 25% et 75% en masse de fibres multi-composants, et entre 0 et 50% en masse de fibres thermorésistantes. by mass of activated carbon fibers, and between 25% and 50% by mass of multi-component fibers, as well as two external layers comprising between 0 and 50% by mass of activated carbon fibers, between 25% and 75% by mass of multi-component fibers, and between 0 and 50% by mass of heat-resistant fibers.
La surface du média filtrant et la perméabilité du média filtrant peuvent être adaptées aux débits d'effluents à traiter. Les fibres multi-composants peuvent être choisies en fonction de la température d'ambiance du média filtrant. The surface of the filter medium and the permeability of the filter medium can be adapted to the flow rates of effluents to be treated. The multi-component fibers can be chosen according to the ambient temperature of the filtering medium.
Les particules de charbon actif ne sont pas nécessairement obtenues à partir de fibres de carbone, mais peuvent être formées notamment par des poudres ou des micro-billes. The activated carbon particles are not necessarily obtained from carbon fibers, but can be formed in particular by powders or micro-beads.
Si désiré, les particules de charbon actif peuvent être catalysées, notamment avec des sels de platine. If desired, the activated carbon particles can be catalyzed, in particular with platinum salts.
Le média filtrant n'est pas nécessairement compressé pour obtenir une feuille, mais peut présenter une épaisseur plus importante, par exemple supérieure à 5 mm, voire une épaisseur variable. The filtering medium is not necessarily compressed to obtain a sheet, but may have a greater thickness, for example greater than 5 mm, or even a variable thickness.
Le média filtrant peut être fixé à un support, notamment par collage sur le support ou par surmoulage du support. Un filtre aisément interchangeable peut ainsi être obtenu. De préférence, le média filtrant est fixé autour d'une ou plusieurs ouvertures du support présentant une surface inférieure à 12 cm2. The filter medium can be fixed to a support, in particular by bonding to the support or by overmolding the support. An easily interchangeable filter can thus be obtained. Preferably, the filtering medium is fixed around one or more openings of the support having an area of less than 12 cm2.
Le média filtrant peut être traversé par les effluents à filtrer et/ou être utilisé pour une filtration tangentielle. The filter medium can be crossed by the effluents to be filtered and / or be used for tangential filtration.
La présente invention n'est nullement limitée à l'exemple de réalisation décrit et à ses variantes, mais englobe de nombreuses modifications dans le cadre des revendications.The present invention is in no way limited to the example of embodiment described and to its variants, but includes numerous modifications within the scope of the claims.
Claims (20)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0201104A FR2835168B1 (en) | 2002-01-30 | 2002-01-30 | FILTER FOR COOKING APPLIANCE OR KIT |
EP03715063A EP1469930A1 (en) | 2002-01-30 | 2003-01-29 | Filter for cooking apparatus or utensil |
PCT/FR2003/000271 WO2003064007A1 (en) | 2002-01-30 | 2003-01-29 | Filter for cooking apparatus or utensil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0201104A FR2835168B1 (en) | 2002-01-30 | 2002-01-30 | FILTER FOR COOKING APPLIANCE OR KIT |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2835168A1 true FR2835168A1 (en) | 2003-08-01 |
FR2835168B1 FR2835168B1 (en) | 2004-05-28 |
Family
ID=27619755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0201104A Expired - Fee Related FR2835168B1 (en) | 2002-01-30 | 2002-01-30 | FILTER FOR COOKING APPLIANCE OR KIT |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1469930A1 (en) |
FR (1) | FR2835168B1 (en) |
WO (1) | WO2003064007A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTV20130116A1 (en) * | 2013-07-24 | 2015-01-25 | Crt Studio Di Cavaion Marino E Pini Gabriele Snc | FILTERING PANEL FOR THE ADSORPTION OF ATMOSPHERIC POLLUTANTS CONSISTING OF THREE ELEMENTS ASSEMBLED IN A SINGLE FRAME |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2934140B1 (en) * | 2008-07-25 | 2010-09-03 | Seb Sa | COOKING APPLIANCE ELECTRICAL COOKING APPLIANCE COMPRISING A FILTER SUBASSEMBLY |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0257868A2 (en) * | 1986-08-22 | 1988-03-02 | Minnesota Mining And Manufacturing Company | Durable melt-blown sheet material |
US4904343A (en) * | 1985-04-23 | 1990-02-27 | American Cyanamid Company | Non-woven activated carbon fabric |
JPH05131136A (en) * | 1991-06-15 | 1993-05-28 | Kuraray Chem Corp | Production of activated carbon bonded sheet |
WO1994011556A1 (en) * | 1992-11-18 | 1994-05-26 | Hoechst Celanese Corporation | Fibrous structure containing immobilized particulate matter and process therefor |
-
2002
- 2002-01-30 FR FR0201104A patent/FR2835168B1/en not_active Expired - Fee Related
-
2003
- 2003-01-29 EP EP03715063A patent/EP1469930A1/en not_active Withdrawn
- 2003-01-29 WO PCT/FR2003/000271 patent/WO2003064007A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4904343A (en) * | 1985-04-23 | 1990-02-27 | American Cyanamid Company | Non-woven activated carbon fabric |
EP0257868A2 (en) * | 1986-08-22 | 1988-03-02 | Minnesota Mining And Manufacturing Company | Durable melt-blown sheet material |
JPH05131136A (en) * | 1991-06-15 | 1993-05-28 | Kuraray Chem Corp | Production of activated carbon bonded sheet |
WO1994011556A1 (en) * | 1992-11-18 | 1994-05-26 | Hoechst Celanese Corporation | Fibrous structure containing immobilized particulate matter and process therefor |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 017, no. 496 (C - 1108) 8 September 1993 (1993-09-08) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTV20130116A1 (en) * | 2013-07-24 | 2015-01-25 | Crt Studio Di Cavaion Marino E Pini Gabriele Snc | FILTERING PANEL FOR THE ADSORPTION OF ATMOSPHERIC POLLUTANTS CONSISTING OF THREE ELEMENTS ASSEMBLED IN A SINGLE FRAME |
WO2015011662A1 (en) * | 2013-07-24 | 2015-01-29 | Anemotech Srl | Filtering panel for the passive filtering of air and gases |
US10245538B2 (en) | 2013-07-24 | 2019-04-02 | Anemotech S.R.L. | Filtering panel for the passive filtering of air and gases |
EP3741442A1 (en) * | 2013-07-24 | 2020-11-25 | Anemotech S.r.l | Filtering panel for passive filtering of air and gases |
Also Published As
Publication number | Publication date |
---|---|
WO2003064007A1 (en) | 2003-08-07 |
FR2835168B1 (en) | 2004-05-28 |
EP1469930A1 (en) | 2004-10-27 |
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