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公开(公告)号：EP0755293B1
公开(公告)日：2003-06-04
申请号：EP95914640.8
申请日：1995-03-23
发明人： HAEFFNER, Roger
IPC分类号： B01D33/23
CPC分类号： B01D33/11 , B01D33/21 , B01D33/463 , B01D33/76 , B01D2201/282
摘要： PCT No. PCT/SE95/00306 Sec. 371 Date Sep. 20, 1996 Sec. 102(e) Date Sep. 20, 1996 PCT Filed Mar. 23, 1995 PCT Pub. No. WO95/25578 PCT Pub. Date Sep. 28, 1995A rotating disc filter for separating coarse phase from a liquid mixture having carrier elements and blocking means that prevent the coarse phase from falling back into the pool of incoming liquid mixture. The capacity of the filter is increased by the prevention of the coarse phase from being filtered again and thereby occupying filter area.
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2.发明授权METHOD AND APPARATUS FOR SEPARATING GASEOUS BUBBLES AND SAND FRO M A LIQUID FLOW 失效方法和设备的气泡从流体流中分离和SAND
公开(公告)号：EP0642373B1
公开(公告)日：1997-11-12
申请号：EP92915899.6
申请日：1992-07-09
发明人： JÖNSSON, Kurt , HAGROT, Magnus , LENVIK, Lennart
CPC分类号： B01D36/001 , B01D24/30 , B01D24/4689
摘要： PCT No. PCT/SE92/00517 Sec. 371 Date Dec. 29, 1993 Sec. 102(e) Date Dec. 29, 1993 PCT Filed Jul. 9, 1992 PCT Pub. No. WO93/00977 PCT Pub. Date Jan. 21, 1993A filtering process for and apparatus separating air bubbles and granular filter medium from a filtrate contaminated by the filter medium and bubbles when passing through a filter bed formed by the filter medium for treatment of a suspension or liquid solution, a gas being passed through the filter medium in contact therewith, includes providing a treated filtrate zone (3) above the filter bed (2), collecting the treated filtrate in the filtrate zone, conducting granular filter medium from the filter bed (2) upwardly through a conveying pipe (4) to a position above the filter bed and thereafter downwardly through a washing apparatus (5) from which the filter medium is precipitated onto a plate (11) above the filter bed. Treated filtrate flows through a separate chamber formed by a cylinder (12) around the washing apparatus (5) and then upwardly through the lower end of the washing apparatus and outwardly through the upper end of the washing apparatus and thereafter leaves the system through an overflow outlet pipe (7). The filtrate leaves the system through a separate filtrate outlet (8). The filtrate flowing downwardly through the separate chamber functions as the washing liquid and flows at a rate sufficiently low for separation of gas bubbles in the chamber therefrom. The filtrate washing liquid flowing upwardly through the washing apparatus (5) flows at a rate sufficiently low for separating the downwardly conducted granular filter medium.
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公开(公告)号：EP0755293A1
公开(公告)日：1997-01-29
申请号：EP95914640.0
申请日：1995-03-23
发明人： HAEFFNER, Roger
IPC分类号： B01D33
CPC分类号： B01D33/11 , B01D33/21 , B01D33/463 , B01D33/76 , B01D2201/282
摘要： PCT No. PCT/SE95/00306 Sec. 371 Date Sep. 20, 1996 Sec. 102(e) Date Sep. 20, 1996 PCT Filed Mar. 23, 1995 PCT Pub. No. WO95/25578 PCT Pub. Date Sep. 28, 1995A rotating disc filter for separating coarse phase from a liquid mixture having carrier elements and blocking means that prevent the coarse phase from falling back into the pool of incoming liquid mixture. The capacity of the filter is increased by the prevention of the coarse phase from being filtered again and thereby occupying filter area.
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4.发明公开METHOD AND APPARATUS FOR SEPARATING GASEOUS BUBBLES AND SAND FRO M A LIQUID FLOW 失效方法和设备的气泡从流体流中分离和沙子。
公开(公告)号：EP0642373A1
公开(公告)日：1995-03-15
申请号：EP92915899.0
申请日：1992-07-09
发明人： JÖNSSON, Kurt , HAGROT, Magnus , LENVIK, Lennart
CPC分类号： B01D36/001 , B01D24/30 , B01D24/4689
摘要： PCT No. PCT/SE92/00517 Sec. 371 Date Dec. 29, 1993 Sec. 102(e) Date Dec. 29, 1993 PCT Filed Jul. 9, 1992 PCT Pub. No. WO93/00977 PCT Pub. Date Jan. 21, 1993A filtering process for and apparatus separating air bubbles and granular filter medium from a filtrate contaminated by the filter medium and bubbles when passing through a filter bed formed by the filter medium for treatment of a suspension or liquid solution, a gas being passed through the filter medium in contact therewith, includes providing a treated filtrate zone (3) above the filter bed (2), collecting the treated filtrate in the filtrate zone, conducting granular filter medium from the filter bed (2) upwardly through a conveying pipe (4) to a position above the filter bed and thereafter downwardly through a washing apparatus (5) from which the filter medium is precipitated onto a plate (11) above the filter bed. Treated filtrate flows through a separate chamber formed by a cylinder (12) around the washing apparatus (5) and then upwardly through the lower end of the washing apparatus and outwardly through the upper end of the washing apparatus and thereafter leaves the system through an overflow outlet pipe (7). The filtrate leaves the system through a separate filtrate outlet (8). The filtrate flowing downwardly through the separate chamber functions as the washing liquid and flows at a rate sufficiently low for separation of gas bubbles in the chamber therefrom. The filtrate washing liquid flowing upwardly through the washing apparatus (5) flows at a rate sufficiently low for separating the downwardly conducted granular filter medium.
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公开(公告)号：EP0641239A1
公开(公告)日：1995-03-08
申请号：EP92911203.0
申请日：1992-06-03
IPC分类号： B01D24
CPC分类号： B01D24/30 , B01D24/4684 , B01D24/4689
摘要： PCT No. PCT/SE92/00381 Sec. 371 Date Feb. 14, 1995 Sec. 102(e) Date Feb. 14, 1995 PCT Filed Jun. 3, 1992 PCT Pub. No. WO92/21422 PCT Pub. Date Dec. 10, 1992It is possible to filter a suspension or emulsion in a filter bed of particulate filter medium by allowing the suspension to flow upwards through the filter bed simultaneously as the medium flows downwards through a filtering tank wherein filtration takes place. Filtration thus takes place during counterflow between suspension and filter medium. The supply of suspension takes place in the lower part of the filter bed and the filtered liquid phase is taken away from a zone above the filter bed. The polluted filter medium close to the bottom of the filter tank is taken out for conveyance to a washing apparatus above the filter bed and after washing is returned to the upper side of the filter bed. For providing a filter which has a considerably lower construction height for a given and unchanged volume of the filter medium, the washing apparatus is lowered so that its lower part is at a level below the upper surface of the filter bed.
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公开(公告)号：EP0708740B1
公开(公告)日：1999-12-01
申请号：EP94919920.2
申请日：1994-06-08
CPC分类号： C02F3/1226 , C02F3/223 , Y02W10/15
摘要： In the biological purification of sewage water or drinking water,it is known to purify the water in a filter bed of granular filter medium, wherein the filter medium is transported from the bottom of the bed to its upper side with the aid of air, so as to obtain a continuously working filter. It is suggested in accordance with the invention that the amount of filter medium to be transported is divided into two or more parts which are transported in parallel, so as to prevent the flow conditions in the transport tube having a negative effect on the reactivity of the filter bed by decreasing the bacteria strain.
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公开(公告)号：EP0958026A1
公开(公告)日：1999-11-24
申请号：EP97933117.0
申请日：1997-07-10
发明人： FRYKHULT, Rune, H.
IPC分类号： B01D33
CPC分类号： B01D33/067 , B01D33/11 , B01D2201/282 , B01D2201/34
摘要： PCT No. PCT/SE97/01257 Sec. 371 Date Feb. 10, 1999 Sec. 102(e) Date Feb. 10, 1999 PCT Filed Jul. 10, 1997 PCT Pub. No. WO98/01206 PCT Pub. Date Jan. 15, 1998An apparatus for filtering liquids comprises a hollow body which is rotatable about a horizontal axis. Liquid to be filtered is supplied into the interior of the rotating hollow body so that filtrate flows by gravity through filter material of the hollow body into a filtrate container. A sealing structure seals between a stationary circumferential wall, which defines a liquid supplying chamber, and a circumferential liquid impervious wall of the hollow body. Wall structures are arranged to prevent unfiltered liquid leaking past the sealing structure from entering the filtrate container.
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公开(公告)号：EP0708740A1
公开(公告)日：1996-05-01
申请号：EP94919920.0
申请日：1994-06-08
IPC分类号： C02F3
CPC分类号： C02F3/1226 , C02F3/223 , Y02W10/15
摘要： In the biological purification of sewage water or drinking water,it is known to purify the water in a filter bed of granular filter medium, wherein the filter medium is transported from the bottom of the bed to its upper side with the aid of air, so as to obtain a continuously working filter. It is suggested in accordance with the invention that the amount of filter medium to be transported is divided into two or more parts which are transported in parallel, so as to prevent the flow conditions in the transport tube having a negative effect on the reactivity of the filter bed by decreasing the bacteria strain.
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公开(公告)号：EP0589896A1
公开(公告)日：1994-04-06
申请号：EP92908886.0
申请日：1992-04-13
发明人： JÖNSSON, Kurt
摘要： On insuffle du gaz dans un filtre (1) pourvu d'une couche filtrante granulaire de manière que le gaz s'écoule dans la couche le long d'au moins un bord longitudinal libre de la couche.
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公开(公告)号：EP0958026B1
公开(公告)日：2006-06-21
申请号：EP97933117.0
申请日：1997-07-10
发明人： FRYKHULT, Rune, H.
IPC分类号： B01D33/067
CPC分类号： B01D33/067 , B01D33/11 , B01D2201/282 , B01D2201/34
摘要： PCT No. PCT/SE97/01257 Sec. 371 Date Feb. 10, 1999 Sec. 102(e) Date Feb. 10, 1999 PCT Filed Jul. 10, 1997 PCT Pub. No. WO98/01206 PCT Pub. Date Jan. 15, 1998An apparatus for filtering liquids comprises a hollow body which is rotatable about a horizontal axis. Liquid to be filtered is supplied into the interior of the rotating hollow body so that filtrate flows by gravity through filter material of the hollow body into a filtrate container. A sealing structure seals between a stationary circumferential wall, which defines a liquid supplying chamber, and a circumferential liquid impervious wall of the hollow body. Wall structures are arranged to prevent unfiltered liquid leaking past the sealing structure from entering the filtrate container.
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