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1. 发明授权

EP0755293B1 A ROTATING DISC FILTER MEANS 失效
标题翻译：旋转圆盘过滤器
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
申请人： NORDIC WATER PRODUCTS AKTIEBOLAG
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.

2. 发明授权

EP0642373B1 METHOD AND APPARATUS FOR SEPARATING GASEOUS BUBBLES AND SAND FRO M A LIQUID FLOW 失效
标题翻译：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
申请人： NORDIC WATER PRODUCTS AKTIEBOLAG
发明人： JÖNSSON, Kurt , HAGROT, Magnus , LENVIK, Lennart
IPC分类号： B01D24/42 , C02F3/00
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.

3. 发明公开

EP0755293A1 A ROTATING DISC FILTER MEANS 失效
标题翻译：旋转圆盘过滤器
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
申请人： NORDIC WATER PRODUCTS AKTIEBOLAG
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.

4. 发明公开

EP0642373A1 METHOD AND APPARATUS FOR SEPARATING GASEOUS BUBBLES AND SAND FRO M A LIQUID FLOW 失效
标题翻译：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
申请人： NORDIC WATER PRODUCTS AKTIEBOLAG
发明人： JÖNSSON, Kurt , HAGROT, Magnus , LENVIK, Lennart
IPC分类号： B01D24 , B01D36 , C02F3
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.

5. 发明公开

EP0641239A1 FILTRATION PROCESS AND APPARATUS 失效
标题翻译：方法和系统进行过滤。
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
申请人： NORDIC WATER PRODUCTS AKTIEBOLAG
发明人： LARSSON, Hans, F. , HJELMN R, Ulf , H KANSSON, Sven
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.

6. 发明授权

EP0958026B1 AN APPARATUS FOR FILTERING LIQUIDS 失效
标题翻译：滤波装置液体的
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
申请人： NORDIC WATER PRODUCTS AKTIEBOLAG
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.

7. 发明授权

EP0707509B1 APPARATUS FOR FILTERING LIQUIDS CONTAINING PARTICLES 失效
标题翻译：装置进行过滤液体的粒子 -
公开(公告)号：EP0707509B1
公开(公告)日：1998-09-30
申请号：EP94921146.0
申请日：1994-07-04
申请人： NORDIC WATER PRODUCTS AKTIEBOLAG
发明人： FRYKHULT, Siri, Viktoria
IPC分类号： B01D33/11
CPC分类号： B01D33/11 , B01D33/21 , B01D33/50 , B01D33/74 , B01D33/742 , B01D33/801 , B01D33/807 , B01D2201/282 , B01D2201/46
摘要： PCT No. PCT/SE94/00660 Sec. 371 Date Dec. 12, 1995 Sec. 102(e) Date Dec. 12, 1995 PCT Filed Jul. 4, 1994 PCT Pub. No. WO95/01825 PCT Pub. Date Jan. 19, 1995An apparatus for filtering liquids, such as fiber suspensions or polluted water, includes a hollow rotating filter body adapted to receive the liquid to be filtered within the body. A plurality of guide members are attached to the filter body and distributed around the latter to receive cloudy filtrate penetrating the filter body at the descending side. A basin is arranged at the descending side of the filter body to collect cloudy filtrate poured from the guide members. As a result, the cloudy filtrate is prevented from mixing with the clear filtrate.

8. 发明授权

EP0690739B1 METHOD FOR SUPPLYING A SUSPENSION TO A FILTER AND DEVICE THEREFOR 失效
标题翻译：方法用于输送悬浮液进行过滤器和设备
公开(公告)号：EP0690739B1
公开(公告)日：1997-09-24
申请号：EP94911361.7
申请日：1994-03-24
申请人： NORDIC WATER PRODUCTS AKTIEBOLAG
发明人： JÖNSSON, Kurt , LENVIK, Lennart , HAGROT, Magnus , OSKARSSON, Jonas
IPC分类号： B01D24/30 , B01D24/00
CPC分类号： B01D24/30 , B01D24/4689
摘要： PCT No. PCT/SE94/00267 Sec. 371 Date Sep. 25, 1995 Sec. 102(e) Date Sep. 25, 1995 PCT Filed Mar. 24, 1994 PCT Pub. No. WO94/22547 PCT Pub. Date Oct. 13, 1994A suspension is delivered to a filter bed comprised of granular filter medium in a continuously working filter at the lower part of the bed and is then permitted to flow upwards through the bed. With the intention of optimizing the capacity of the filter, the suspension is now guided into a central region of the bed. The suspension is divided from this region into at least two specific proportional quantities which are each led from the filter bed in a respective ring-shaped pattern at mutually different heights in relation to the extension of the bed, these ring-shaped patterns having different diameters and each being adapted to the extension of the filter medium in the direction of the diameter.\!

9. 发明授权

EP0641239B1 Filtering apparatus 失效
标题翻译：过滤装置
公开(公告)号：EP0641239B1
公开(公告)日：1997-09-10
申请号：EP92911203.5
申请日：1992-06-03
申请人： NORDIC WATER PRODUCTS AKTIEBOLAG
发明人： LARSSON, Hans, F. , HJELMNER, Ulf , HAKANSSON, Sven
IPC分类号： B01D24/36 , B01D24/46
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.

10. 发明授权

EP0589896B1 BLOWING A GAS INTO A GRANULAR FILTER BED 失效
标题翻译：气体在颗粒床过滤器吹入
公开(公告)号：EP0589896B1
公开(公告)日：1997-09-10
申请号：EP92908886.2
申请日：1992-04-13
申请人： NORDIC WATER PRODUCTS AKTIEBOLAG
发明人： JÖNSSON, Kurt
IPC分类号： B01J8/02 , B01D39/06 , C02F3/20 , C02F3/30
CPC分类号： C02F3/20 , C02F3/06 , Y02W10/15
摘要： A gas is blown into a filter (1) having a granular filter bed such that the gas flows into the bed along at least one elongate free edge disposed in the bed.

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