SE500554C2 - Pollution separation device - Google Patents
Pollution separation deviceInfo
- Publication number
- SE500554C2 SE500554C2 SE9203535A SE9203535A SE500554C2 SE 500554 C2 SE500554 C2 SE 500554C2 SE 9203535 A SE9203535 A SE 9203535A SE 9203535 A SE9203535 A SE 9203535A SE 500554 C2 SE500554 C2 SE 500554C2
- Authority
- SE
- Sweden
- Prior art keywords
- chamber
- air
- fiber
- inlet
- stream
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
Abstract
Description
frn, f""' 2 ll är ledningar 16 anordnade för tillförsel av en kontinuerlig jämt fördelad basström av gas, exempelvis luft. Dessa ledningar 16 är anslutna till ett luftfördelningsutrymme 17 vilket symme- triskt fördelar luften in till kammaren 10 genom en justerbar slits 18 som sträcker sig runt hela omkretsen på kammaren 10. From above, lines 16 are arranged 16 for supplying a continuous evenly distributed base stream of gas, for example air. These conduits 16 are connected to an air distribution space 17 which symmetrically distributes the air into the chamber 10 through an adjustable slot 18 which extends around the entire circumference of the chamber 10.
Det fibermaterial som skall siktas tillföres genom in- loppsröret 11 i form av en luftburen fiberström med en ström- ningshastighet av 15-45 m/s. Fiberströmmen träffar retardations- organet 12 som stoppar fiberströmmens vertikala hastighet och avlänkar och distribuerar fiberströmmen utåt. Den uppåtriktade kontinuerliga basströmmen av luft fångar då upp fibermaterialet och en stabil, i huvudsak mycket likformig och jämn strömning uppnås snabbt vilket innebär att kammarens 10 höjd kan be- gränsas. Acceptabla fibrer bärs av basströmmen medan tyngre partiklar med större fallhastighet än fibrerna faller ned i botten av kammaren. Detta rejekt tas ut via slussanordningens 15 spjäll.The fibrous material to be screened is supplied through the inlet pipe 11 in the form of an airborne fiber stream with a flow velocity of 15-45 m / s. The fiber stream strikes the deceleration means 12 which stops the vertical velocity of the fiber stream and diverts and distributes the fiber stream outward. The upward continuous base flow of air then captures the fibrous material and a stable, substantially very uniform and even flow is achieved quickly, which means that the height of the chamber 10 can be limited. Acceptable fibers are carried by the base current while heavier particles with a greater rate of fall than the fibers fall to the bottom of the chamber. This reject is taken out via the damper of the lock device 15.
De acceptabla fibrerna förs uppåt av den uppåtgående luftströmmen. Genom reglering av basströmmen medelst en för- bikopplingsledning 19 med ett luftspjäll 20 som styrs av en avkänningsanordning 21 för tryckfallet mellan kammaren 10 och utloppet 13 kan avskiljningsförloppet och fibertransporten styras enkelt och effektivt. Den cirkulära formen på kammaren 10 ger en över tvärsnittet fördelad luftström. Luftfördelnings- utrymmets 17 slits 18 gör att den inkommande luften direkt för- delas över hela tvärsnittet. Detta leder i sin tur till att lokal stark turbulens undvikes och risken för att avskiljda partiklar sugs med blir minimal.The acceptable fibers are carried upwards by the upward flow of air. By regulating the base current by means of a bypass line 19 with an air damper 20 which is controlled by a sensing device 21 for the pressure drop between the chamber 10 and the outlet 13, the separation process and the fiber transport can be controlled easily and efficiently. The circular shape of the chamber 10 provides an air flow distributed over the cross section. The slot 18 of the air distribution space 17 means that the incoming air is distributed directly over the entire cross section. This in turn leads to local strong turbulence being avoided and the risk of separating particles being sucked away is minimal.
Avskiljningsanordningen är särskilt lämpad för användning i en process för fiberboardframställning där luft transporterar fibermaterialet från defibrering via belimning och torkning till formering. Tyngre partiklar såsom odefibrerat material och hop- klumpade lim-, harts- och latexpartiklar etc måste på något sätt avlägsnas. Föreliggande uppfinning möjliggör en snabb och effek- tiv avskiljning av dessa föroreningar. Avskiljningsförloppet kan lätt styras och anordningen kan placeras på lämplig plats, före- trädesvis mellan torkning och formering, i såväl nya som gamla anläggningar. De accepterade fibrerna transporteras från kammarens 10 utlopp 13 vidare i processen, exempelvis till en fiberbinge eller en formeringsanordning. _ fa f* 'f- . ' 'z f. L; »UU u'\.-'= 3 Eftersom avskiljningsprocessen är mycket känslig för temperatur- och fuktförändringar i luften är en automatisk styrning av lufthastigheten väsentlig och i många fall en förut- sättning för ett lyckat resultat. Detta har lösts genom ovan- stående arrangemang. Styrning av luftflödet till basströmmen sker således genom att en mindre luftström förbikopplas kammaren 10 genom kanalen 19 där flödet regleras medelst luftspjället 20.The separation device is particularly suitable for use in a fiberboard manufacturing process where air transports the fibrous material from defibration via gluing and drying to forming. Heavier particles such as undefibrated material and lumpy glue, resin and latex particles, etc. must be removed in some way. The present invention enables a rapid and efficient separation of these contaminants. The separation process can be easily controlled and the device can be placed in a suitable place, preferably between drying and forming, in both new and old plants. The accepted fibers are transported from the outlet 13 of the chamber 10 further in the process, for example to a fiber binge or a forming device. _ fa f * 'f-. '' z f. L; »UU u '\ .-' = 3 As the separation process is very sensitive to changes in temperature and humidity in the air, automatic control of the air velocity is essential and in many cases a prerequisite for a successful result. This has been solved through the above arrangement. Control of the air flow to the base flow thus takes place by bypassing a smaller air flow through the chamber 10 through the duct 19 where the flow is regulated by means of the air damper 20.
Detta luftspjäll styrs av avkänningsanordningen 21 för dif- ferensstrycket mellan kammaren 10 och utloppet 13. Vidare ger den justerbara slitsen 18 en låg lufthastighet med möjlighet till lokal reglering av'luftströmmen för jämn fördelning runt hela Omkretsen.This air damper is controlled by the sensing device 21 for the differential pressure between the chamber 10 and the outlet 13. Furthermore, the adjustable slot 18 provides a low air velocity with the possibility of local control of the air flow for even distribution around the entire circumference.
Som transportluft för fibrer till fiberinloppet ll och som basström används lämpligen luft som till största delen tas från formeringsanordningens vakuumboxar, dvs den transportluft som avskiljs vid formeringen av en fibermatta på ett luftgenom- släppligt underlag.As transport air for fibers to the fiber inlet 11 and as base stream, air which is largely taken from the vacuum boxes of the forming device is suitably used, i.e. the transport air which is separated during the formation of a fiber mat on an air-permeable substrate.
En separat fläkt är lämpligen anordnad för transport av luft/fibrer till kammaren 10. Därigenom kan avskiljningsanord- ningen placeras på valfri plats mellan fibertorken och forme- ringsanordningen.A separate fan is suitably arranged for transporting air / fibers to the chamber 10. As a result, the separating device can be placed at any place between the fiber dryer and the forming device.
Uppfinningen är givetvis inte begränsad till den visade utföringsformen utan kan varieras inom ramen för uppfinnings- tanken.The invention is of course not limited to the embodiment shown but can be varied within the scope of the inventive idea.
Claims (6)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9203535A SE500554C2 (en) | 1992-11-25 | 1992-11-25 | Pollution separation device |
DE69307477T DE69307477T2 (en) | 1992-11-25 | 1993-10-30 | Device for separating heavy particles from a stream with fibrous material |
AT93117644T ATE147667T1 (en) | 1992-11-25 | 1993-10-30 | DEVICE FOR SEPARATING HEAVY PARTICLES FROM A STREAM OF FIBER MATERIAL |
ES93117644T ES2098627T3 (en) | 1992-11-25 | 1993-10-30 | APPARATUS TO SEPARATE HEAVY PARTICLES FROM A FLOW OF FIBROUS MATERIAL. |
EP93117644A EP0599088B1 (en) | 1992-11-25 | 1993-10-30 | Apparatus for separating heavy particles from a flow of fiber material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9203535A SE500554C2 (en) | 1992-11-25 | 1992-11-25 | Pollution separation device |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9203535D0 SE9203535D0 (en) | 1992-11-25 |
SE9203535L SE9203535L (en) | 1994-05-26 |
SE500554C2 true SE500554C2 (en) | 1994-07-11 |
Family
ID=20387922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9203535A SE500554C2 (en) | 1992-11-25 | 1992-11-25 | Pollution separation device |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0599088B1 (en) |
AT (1) | ATE147667T1 (en) |
DE (1) | DE69307477T2 (en) |
ES (1) | ES2098627T3 (en) |
SE (1) | SE500554C2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE514379C2 (en) * | 1995-03-23 | 2001-02-19 | Mrt System Ab | Process and system for mechanical separation of material from discarded fluorescent lamps and similar lamps which are disintegrated |
DE19812505C2 (en) * | 1997-06-06 | 2001-03-08 | Robert Nyblad Gmbh | Method and device for the treatment of clumped or agglomerated material by pressure waves generated in the treatment liquid |
DE19835771A1 (en) | 1998-08-07 | 2000-02-17 | Eisfeld Jens Gerrit | Method and device for obtaining a fiber material suitable as a raw material for insulation purposes or for producing nonwovens or as a filler or upholstery material, and use of the fiber material |
GB9916246D0 (en) * | 1999-07-12 | 1999-09-15 | Vapormatt Ltd | Particle separation assembly |
CN103521446A (en) * | 2013-10-22 | 2014-01-22 | 广东中烟工业有限责任公司 | Two-stage separating type stem sliver and cut tobacco separating device |
JP6410976B1 (en) * | 2018-03-14 | 2018-10-24 | 新日鉄住金エンジニアリング株式会社 | Method for producing molded body and method for producing carbide |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1877861A (en) * | 1927-12-02 | 1932-09-20 | Minnesota Mining & Mfg | Process of and apparatus for separating materials |
DE589578C (en) * | 1928-09-11 | 1933-12-09 | Karl Schubert | Device for sorting, cleaning or sifting grain and other substances |
US2766880A (en) * | 1951-08-04 | 1956-10-16 | Ruhrchemie Ag | Separation of fine-grained portions from granular materials |
US3398829A (en) * | 1967-02-17 | 1968-08-27 | Du Pont | Apparatus for separating adulterants during pneumatic conveying |
US3975263A (en) * | 1975-02-25 | 1976-08-17 | Elo Heikki K | Material separation apparatus and method |
SE467044B (en) * | 1990-09-28 | 1992-05-18 | Flaekt Ab | SEAT AND DEVICE FOR SEPARATION OF WEIGHTER PARTICLES FROM A PARTICULAR MATERIAL |
-
1992
- 1992-11-25 SE SE9203535A patent/SE500554C2/en unknown
-
1993
- 1993-10-30 DE DE69307477T patent/DE69307477T2/en not_active Revoked
- 1993-10-30 ES ES93117644T patent/ES2098627T3/en not_active Expired - Lifetime
- 1993-10-30 AT AT93117644T patent/ATE147667T1/en not_active IP Right Cessation
- 1993-10-30 EP EP93117644A patent/EP0599088B1/en not_active Revoked
Also Published As
Publication number | Publication date |
---|---|
DE69307477T2 (en) | 1997-05-15 |
SE9203535D0 (en) | 1992-11-25 |
ATE147667T1 (en) | 1997-02-15 |
EP0599088A1 (en) | 1994-06-01 |
ES2098627T3 (en) | 1997-05-01 |
EP0599088B1 (en) | 1997-01-15 |
DE69307477D1 (en) | 1997-02-27 |
SE9203535L (en) | 1994-05-26 |
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