• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A device for filtering bersus suspensions, comprising a vessel (1) with inlet (2) for the suspension. Arranged in the vessel is a rotatable shaft (5) with peripheral channels (7) and at least one disc-shaped filter element (8) oriented at an angle to the rotatable shaft (5). The filter element has an alternating cladding (10) and inner fate channels for transporting that through-cladding passed filtered to one or more channels (7) in the inner rotating shaft (5). The liquid flow in the channels (7) is combined at one end of the rotating shaft (5) into at least one barometric downcomer (12) for generating the vacuum necessary for the filtration. Means (13) are provided for detaching the filter lining (10) deposited, filtered material removed from the suspension. Furthermore, there are means (14) which are movable by means of a drive means (15), prewash of the filter cover (10) and dilution and removal of the filtered material down into at least one receiver shaft (16). Detachment means (13), washing means (14) and receiver shaft (16) are arranged next to the filter element (8). At the outlet end (18) of the receiving shaft and at the lower part (19) of the vessel, a transport means (17) with a drive means (20) is arranged for transporting and transporting away the filtered material.
    公开号:SE1000647A1
    申请号:SE1000647
    申请日:2010-06-16
    公开日:2011-12-17
    发明作者:Kent Strid；Rolf Oswaldson
    申请人:Rioks Patenter Ab；
    IPC主号:
    专利说明:

    i-ßl-Ii-ir-ßi- fl r- fl i-li-I IO UIJÄUÛI JP- * O OOO JO KII.I> WI J * - 'we00šàbJ®§àbJWbJUJlQl ) I JI Jl Jl 3l Jl ) I ) l ) Y- *QQUI-IÄUJNH- * OWOOQQKJI-ÄWNWOWbdOO39404 l42432/7use. Alternatively, the discs are placed at a fairly large axial distance fromeach other, which also makes the alteration plant large and uneconomical.
    To avoid scraping and thus thickening of the constituentfi The bers suspension must be the distance between the shaft and the rotating discsmade large which means that the distance between each disc becomes so large that eventhis solution makes the alteration plant large and uneconomical.
    The second main type of disc alter has the disadvantage of a relatively expensive oneconstruction with the inner longitudinal conveyor placed inside the filterrotor part. It further means that the inner rotor part must be made ratherbulky. The placement of the conveyor also complicates and makes it more expensivethe channeling of the inner rotor part as these must be provided in a crown shapeoutside of the conveyor. The material falling to the conveyorwill also be able to end up on the channeling. An additional disadvantageis that an accident as far as the conveyor is concerned makes the entire filter deviceunusable.
    SUMMARY OF THE INVENTIONThe purpose of the invention is to further develop the device according to the preambleto requirement l so that a more out of cost, capacity and reliability improvedThe filter device for filtering easily filtered ers bers suspensions is achieved as oneresults of improvements in preventing thickening of constituentssuspension and removal of filtered material.
    This object is fulfilled according to the invention by assigning the device to themcharacteristics according to the following claim l.
    Further developments of the invention are reported in the dependent claims2 ~ 6.
    The design of the invention offers the following advantages:l. Greater utilization of the installed altering surface; opportunity for higheraverage level in the vessel which gives higher capacity.The filter device according to the invention can filter easily dewateredfi bersus pensions with a higher concentration than what is possible inday with known disk alter with conventional shafts between the alter disks.
    When compared with prior art having shafts betweenadjacent filter discs, the filter according to the invention can handle significantlyhigher concentration than is possible today.»Fl l fl v-i-xi-r- fl r-v fl JO Ul-ßbål Jl-l © O0O lO kll-lšbål åv- *-bàbàbàbàßàš fl båbåbåbàbàl ) lxJl ) lx) bålx) lx) lx) lxJlQi fl w flF- * Ö @ OO ~ IO UI-IÄQJIQ> - * G OOO IO KIIJÄU) I J) - * G OOO3/7Known discs of a similar type have the shafts placed between the discson the side of the inner rotating shaft with discs where the discs leavethe suspension in the vessel and the means for detaching the removed materialthe material is placed above the shaft, this is followed by a meansfor washing the slides of the filter, this provides that when filtering thethe lightly dewatered fi bers suspensions are pushed fi the bers suspension in the vessel towardsthe shaft due to the rotation of the discs, whereby a thickening ofthe suspension takes place in the vessel.4. According to the invention, the shafts are located on the same side as the discsbegins to sink into the suspension. This means that there is no obstacle to itcontinue the filtration so that a thickening of the beer suspension can take place.
    This makes it possible to easily dewatered fi bersus suspensions with relatively highinput concentration can be filtered with a disk filter according to the invention.Shafts designed and placed according to the invention require lessdistance between the discs why the filter device in its entirety can be madeshorter, i.e. with less distance between the discs and shorter insideshaft, vessel, etc.6. The above related benefits provide a lower production cost andhigher capacity compared to disc filters with shafts according to previous technology.
    Additional benefits and aspects of the invention will be discussedas follows:BRIEF DESCRIPTION OF RITN NOWith reference to the accompanying drawing, a description of an example follows belowstated embodiment of the invention.
    In the drawing are:Fig. 1 is a schematic partially cut-away side view of the inventive unitThe filter device,Fig. 2 is a sectional view taken along line A-A in Fig. 1,i-i fl r fl i-Ir-Ir-i-ii-Iv- flOO-IO U'I-IÄUÅK J @ CD OOO IO KJIJ> UÖI Ü **NIONIQNINNNW- ~ 10 U1- | š ~ b-> I ~ J ~ O Owwwwwwwwmwfl mvi-hww fi øwoc-ß-IÄ-ÄWUJl )> - * O O0O4/7DETAILED DESCRIPTION OF PREFERRED EMBODIMENTSThe suitable lighting device will be described in the followingas applied when dewatering ers bersus suspensions that are relativelightly drained.
    The filter device comprises a u-shaped vessel with 1 end caps with 1and an inlet 2 for fiber suspensions. Inlet 2 is arranged along oneside of the vessel 1. To the inlet 2 leads an inlet pipe designated 3. The upper of the vesselpart is closed with one or fl your openable lids or similar 4.In the vessel 1 is an inner rotatable shaft 5 with drive device 6 and fate channels 7arranged and a number of outer disc-shaped filter elements 8 placed across itgeometric axis of the inner shaft 5. In practice, the disc-shaped filter elements are 8oriented substantially perpendicular to the axis of rotation of the shaft 5. The individualthe disc-shaped alter element 8 extends in a ring-like configuration aroundthe inner rotor part 5. This ring configuration is divided into a numberFilter sectors 9. Each filter sector 9 has an outer filter covering, andinternal channels for conveying the filtrate passing through the liner 10, dv s the filtered water, to one or your fate channels 7 in the inner rotatableaxeln 5.
    The feed channels 7 in the rotatable shaft 5 open into a device 11 calledfiltrate valve intended to collect water fl fate from a number fl fate channels toat least one pipe 12 called downcomers in which the water falls through and thereby formsthe necessary vacuum required for the filtration process.
    The device comprises means 13 for releasing it onto the filterthe cladding 10 deposited, removed the filtered fibers. Detachment device 13consists of spray nozzles placed to means water or other mediumremove the cake of the filtered fibers from the filter sectors asthese rotate past.
    Furthermore, the device comprises means 14 which hold at least two functionsnamely, to wash the filter cladding 10 and to remove itremoved the filtered carrier material. The washing device 14 has a drive device 15 forproducing an oscillating movement over the altering of the discscladding 10. The washing device 14 consists of spray nozzles placed in front of itwashing the filter elements 8 primarily by water or other mediumThe altering cladding 10 as they rotate past. The washing devicemain secondary function is to contribute to its removalremove the luring material through the compartments 16 down to the collectoroowøxux-ß-MJNH5/7the transport screw 17 located below the vessel 1 of the filter. Another secondary functionis also to dilute the filtered fiber material.
    The present invention has primarily improved and provided noveltiesFiltering options for filtering lightly dewatered bersus suspensions throughon the one hand, placement of inlet device 2, placement of detachment device 13,location and form of use of washing device 14 and location ofoutlet compartment 16.
    The above improvements provide the following:1. Placement of inlet device 2 and placement of outlet compartments 16 means thatthe carrier material produced during the filtration on the filtration of the discscladding is not sheared off during the filtration process.2. Placement of detachment device 13 allows the drying zone to be removedfi the base material becomes long so that a high dry content is achieved before loosening.3. Location and the use function of washing device 14 withusing the washing function of washing the discs 10and contribute to the removal of the removed carrier materialthrough compartment 16 down to the collecting transport screw 17 provides a safefunction when filtering lightly dewatered fi bers suspensions.
    These improvements provide overall high capacity, high dry matter contentremoved the filtered material and enables filtration of easily dewateredfi bersus pensions without prior dilution.
    权利要求:
    Claims (6)
    [1]
    Device for filtering bersus suspensions, comprising a vessel (1) with inlet (2) for the suspension, a rotatable shaft (5) arranged in the vessel (1) with peripheral channels (7) and at least one disc-shaped filter element (8), which exhibits filter sectors (9) oriented at an angle to the geometric axis of the rotatable shaft (5), the filter element having an outer filter cladding (10) and inner channel channels for conveying the filter passing through the cladding to one or 7 filter channels (7) the inner rotating shaft, means (13) for releasing the filter material deposited on the filter casing (10), the filter material removed from the suspension and means (14) for washing the filter casing (10) and removing the filter material down into at least one receiving shaft; (16), characterized in that the filtered material removed on the filter sectors (9) is flushed down into the receiver shaft (16) and thus the filtered material is diluted to the desired concentration by means of liquid a given from the washing means (14).
    [2]
    Device according to claim 1, characterized in that the receiving shaft (16) is arranged at the side of the vessel (1) where the filter sectors (9) begin to be immersed in the suspension.
    [3]
    Device according to claim 1, characterized in that the inlet device (2) is arranged at the side of the vessel (1) where the filter sectors (9) begin to be immersed in the suspension,
    [4]
    Device according to claim 1, characterized in that means (13) for loosening the filtered material are part of and follow the same oscillating movement as washing means (14).
    [5]
    Device according to one of the preceding claims, characterized in that the inlet device (2) is designed as a closed vessel.
    [6]
    Device according to one of the preceding claims, characterized in that the inlet device (2) distributes the input suspension in between the rotating filter elements (8) and the receiving shaft (16) and in the same direction as the direction of movement of rotating filter elements (8).
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    同族专利:
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    WO2011159235A1|2011-12-22|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3591009A|1969-08-22|1971-07-06|Oscar Luthi|Disc filter having filtrate directing means|
    FI54060C|1976-09-14|1978-10-10|Rauma Repola Oy|SKIVFILTER|
    FI72431C|1985-07-03|1987-06-08|Rauma Repola Oy|FOERFARANDE FOER OEVERFOERING AV FILTRERAD MASSA MED SKIVFILTER OCH SKIVFILTER.|
    FI95660C|1994-06-10|1998-07-14|Ahlstrom Machinery Oy|Disc filter feeder|
    JP3338244B2|1995-08-18|2002-10-28|三菱電機株式会社|Planetary gear reduction mechanism|
    SE510603C2|1997-08-21|1999-06-07|Kvaerner Pulping Asa|Rotary filter with two-stage pre-filtration, method of filtration and use of the filter for dewatering cellulose fiber suspensions|
    SE9800474L|1998-02-18|1999-03-15|Harry Nilsson|Rotating filters with annular filter discs|
    SE0100411L|2001-02-07|2001-12-10|Kvaerner Pulping Tech|Pipe system for receiving and transporting mesa from a white liquor filter|
    ES2318008T3|2001-07-03|2009-05-01|Flsmidth A/S|FILTER WITH SEQULANTIC REMOVAL OF THE PRELIMINARY LAYER AND RENEWAL SYSTEM.|
    CN201099799Y|2007-05-14|2008-08-13|汶瑞机械有限公司|Pressure disc type filter|FI124273B|2012-02-06|2014-05-30|Andritz Oy|Method and apparatus for removing a rotary filter pre-coating layer|
    FI123557B|2012-02-06|2013-07-15|Andritz Oy|Method and apparatus for thinning a disc filter pre-coating layer|
    CN103657205B|2013-12-05|2016-05-18|江苏新宏大集团有限公司|A kind of vertical filter disc filter thickener|
    SE538959C2|2015-07-09|2017-03-07|Valmet Oy|Agitator system for a disc filter|
    US10729994B2|2015-12-03|2020-08-04|Veolia Water Solutions & Technologies Support|Rotary disc filter|
    WO2018031884A1|2016-08-12|2018-02-15|Evoqua Water Technologies Llc|Disc filter pre-screen dual media disc filter|
    SE540721C2|2017-06-02|2018-10-23|Nordic Water Prod Ab|Filter element for use in a filter disc|
    SE540831C2|2017-06-27|2018-11-27|Valmet Technologies Oy|FILTER DEVICE|
    CN112566708A|2018-08-10|2021-03-26|凯登百利可乐生有限公司|Disc filter and method for operating a disc filter|
    US11000791B2|2019-03-06|2021-05-11|Veolia Water Solutions & Technologies Support|Rotary disc filter having backwash guides|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1000647A|SE534913C2|2010-06-16|2010-06-16|Disc filter|SE1000647A| SE534913C2|2010-06-16|2010-06-16|Disc filter|
    PL11796053T| PL2582441T3|2010-06-16|2011-06-14|Disc filter|
    ES11796053T| ES2753528T3|2010-06-16|2011-06-14|Disc filter|
    CA2802646A| CA2802646C|2010-06-16|2011-06-14|Disc filter|
    BR112012032271-0A| BR112012032271B1|2010-06-16|2011-06-14|Disc filter to dehydrate cellulose fiber suspensions|
    US13/704,409| US9238188B2|2010-06-16|2011-06-14|Disc filter|
    EP11796053.4A| EP2582441B1|2010-06-16|2011-06-14|Disc filter|
    CN201180038841.6A| CN103068461B|2010-06-16|2011-06-14|Disc filter|
    PCT/SE2011/050733| WO2011159235A1|2010-06-16|2011-06-14|Disc filter|
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