METHOD AND APPARATUS FOR TREATING PULP
The present invention relates to a method and an apparatus for dividing a pulp suspension into an accepted fraction and a rejected fraction containing impurity particles. According to the invention, a mixture of material containing components, which wear by abrasion, is introduced tangentially into...
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| creator | VIKIOE, PENTTI VILKKO, KAI SUORTTI, SIMO |
| description | The present invention relates to a method and an apparatus for dividing a pulp suspension into an accepted fraction and a rejected fraction containing impurity particles. According to the invention, a mixture of material containing components, which wear by abrasion, is introduced tangentially into a vortex cleaner having a centrally located discharge duct (3) for one fraction and a partly conical portion (4) serving as a discharge duct for the other fraction where at least the conical portion has a double-wall construction. According to the invention, there is inside an unbroken outer wall (6), an inner wall (6) having apertures (7), and an open space (8) between the outer wall and the inner wall.
L'invention concerne un procédé et un dispositif servant à diviser une suspension de pâte à papier en une fraction acceptée et en une fraction rejetée contenant des particules d'impuretés. Ceci consiste à introduire un mélange de matériau contenant des éléments d'usure par abrasion, de façon tangentielle dans un hydrocyclone possédant un conduit d'évacuation (3) situé en son centre, afin d'évacuer une des fractions, ainsi qu'une partie (4) partiellement conique servant de conduit d'évacuation de l'autre fraction et comportant au moins une double paroi. L'intérieur de ce dispositif possède une paroi extérieure (5) pleine, une paroi intérieure (6) pourvue d'ouvertures (7) et un espace ouvert (8) entre la paroi extérieure et la paroi intérieure. |
| format | Patent |
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L'invention concerne un procédé et un dispositif servant à diviser une suspension de pâte à papier en une fraction acceptée et en une fraction rejetée contenant des particules d'impuretés. Ceci consiste à introduire un mélange de matériau contenant des éléments d'usure par abrasion, de façon tangentielle dans un hydrocyclone possédant un conduit d'évacuation (3) situé en son centre, afin d'évacuer une des fractions, ainsi qu'une partie (4) partiellement conique servant de conduit d'évacuation de l'autre fraction et comportant au moins une double paroi. L'intérieur de ce dispositif possède une paroi extérieure (5) pleine, une paroi intérieure (6) pourvue d'ouvertures (7) et un espace ouvert (8) entre la paroi extérieure et la paroi intérieure.</description><edition>6</edition><language>eng ; fre</language><subject>APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES ; CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES ; PAPER-MAKING ; PERFORMING OPERATIONS ; PRODUCTION OF CELLULOSE ; TEXTILES ; TRANSPORTING ; TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKINGMACHINE</subject><creationdate>1998</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19980507&DB=EPODOC&CC=WO&NR=9818559A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19980507&DB=EPODOC&CC=WO&NR=9818559A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>VIKIOE, PENTTI</creatorcontrib><creatorcontrib>VILKKO, KAI</creatorcontrib><creatorcontrib>SUORTTI, SIMO</creatorcontrib><title>METHOD AND APPARATUS FOR TREATING PULP</title><description>The present invention relates to a method and an apparatus for dividing a pulp suspension into an accepted fraction and a rejected fraction containing impurity particles. According to the invention, a mixture of material containing components, which wear by abrasion, is introduced tangentially into a vortex cleaner having a centrally located discharge duct (3) for one fraction and a partly conical portion (4) serving as a discharge duct for the other fraction where at least the conical portion has a double-wall construction. According to the invention, there is inside an unbroken outer wall (6), an inner wall (6) having apertures (7), and an open space (8) between the outer wall and the inner wall.
L'invention concerne un procédé et un dispositif servant à diviser une suspension de pâte à papier en une fraction acceptée et en une fraction rejetée contenant des particules d'impuretés. Ceci consiste à introduire un mélange de matériau contenant des éléments d'usure par abrasion, de façon tangentielle dans un hydrocyclone possédant un conduit d'évacuation (3) situé en son centre, afin d'évacuer une des fractions, ainsi qu'une partie (4) partiellement conique servant de conduit d'évacuation de l'autre fraction et comportant au moins une double paroi. L'intérieur de ce dispositif possède une paroi extérieure (5) pleine, une paroi intérieure (6) pourvue d'ouvertures (7) et un espace ouvert (8) entre la paroi extérieure et la paroi intérieure.</description><subject>APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES</subject><subject>CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES</subject><subject>PAPER-MAKING</subject><subject>PERFORMING OPERATIONS</subject><subject>PRODUCTION OF CELLULOSE</subject><subject>TEXTILES</subject><subject>TRANSPORTING</subject><subject>TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKINGMACHINE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1998</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFDzdQ3x8HdRcPQD4oAAxyDHkNBgBTf_IIWQIFfHEE8_d4WAUJ8AHgbWtMSc4lReKM3NoODmGuLsoZtakB-fWlyQmJyal1oSH-5vaWFoYWpq6WhoTIQSAH1uI1w</recordid><startdate>19980507</startdate><enddate>19980507</enddate><creator>VIKIOE, PENTTI</creator><creator>VILKKO, KAI</creator><creator>SUORTTI, SIMO</creator><scope>EVB</scope></search><sort><creationdate>19980507</creationdate><title>METHOD AND APPARATUS FOR TREATING PULP</title><author>VIKIOE, PENTTI ; VILKKO, KAI ; SUORTTI, SIMO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO9818559A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>1998</creationdate><topic>APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES</topic><topic>CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES</topic><topic>PAPER-MAKING</topic><topic>PERFORMING OPERATIONS</topic><topic>PRODUCTION OF CELLULOSE</topic><topic>TEXTILES</topic><topic>TRANSPORTING</topic><topic>TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKINGMACHINE</topic><toplevel>online_resources</toplevel><creatorcontrib>VIKIOE, PENTTI</creatorcontrib><creatorcontrib>VILKKO, KAI</creatorcontrib><creatorcontrib>SUORTTI, SIMO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>VIKIOE, PENTTI</au><au>VILKKO, KAI</au><au>SUORTTI, SIMO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD AND APPARATUS FOR TREATING PULP</title><date>1998-05-07</date><risdate>1998</risdate><abstract>The present invention relates to a method and an apparatus for dividing a pulp suspension into an accepted fraction and a rejected fraction containing impurity particles. According to the invention, a mixture of material containing components, which wear by abrasion, is introduced tangentially into a vortex cleaner having a centrally located discharge duct (3) for one fraction and a partly conical portion (4) serving as a discharge duct for the other fraction where at least the conical portion has a double-wall construction. According to the invention, there is inside an unbroken outer wall (6), an inner wall (6) having apertures (7), and an open space (8) between the outer wall and the inner wall.
L'invention concerne un procédé et un dispositif servant à diviser une suspension de pâte à papier en une fraction acceptée et en une fraction rejetée contenant des particules d'impuretés. Ceci consiste à introduire un mélange de matériau contenant des éléments d'usure par abrasion, de façon tangentielle dans un hydrocyclone possédant un conduit d'évacuation (3) situé en son centre, afin d'évacuer une des fractions, ainsi qu'une partie (4) partiellement conique servant de conduit d'évacuation de l'autre fraction et comportant au moins une double paroi. L'intérieur de ce dispositif possède une paroi extérieure (5) pleine, une paroi intérieure (6) pourvue d'ouvertures (7) et un espace ouvert (8) entre la paroi extérieure et la paroi intérieure.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES PAPER-MAKING PERFORMING OPERATIONS PRODUCTION OF CELLULOSE TEXTILES TRANSPORTING TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKINGMACHINE |
| title | METHOD AND APPARATUS FOR TREATING PULP |
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