SE462566B - DEVICE FOR WASHING THE TIP - Google Patents
DEVICE FOR WASHING THE TIPInfo
- Publication number
- SE462566B SE462566B SE8804261A SE8804261A SE462566B SE 462566 B SE462566 B SE 462566B SE 8804261 A SE8804261 A SE 8804261A SE 8804261 A SE8804261 A SE 8804261A SE 462566 B SE462566 B SE 462566B
- Authority
- SE
- Sweden
- Prior art keywords
- gutter
- tank
- outlet
- chips
- tank wall
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/023—Cleaning wood chips or other raw materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
- B03B5/626—Helical separators
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Detergent Compositions (AREA)
Description
462 566 Uppfinningens kännetecken framgår av patentkraven. The features of the invention appear from the claims.
I det följande skall uppfinningen beskrivas närmare under hänvisning till figurerna där en utföringsform av upp- finningen visas.In the following, the invention will be described in more detail with reference to the figures where an embodiment of the invention is shown.
Fig 1 visar en anordning enligt uppfinningen sedd i genomskärning.Fig. 1 shows a device according to the invention seen in section.
Fig 2 visar samma anordning enligt snitt II-II i fig 1.Fig. 2 shows the same device according to sections II-II in Fig. 1.
Den visade utföringsformen innefattar en cylindrisk tank 1.Tankens storlek är givetvis beroende av den önskade kapaciteten. Dess diameter kan exvis vara 1,5-3 m. Invändigt är tanken försedd med en ränna 2 som sträcker sig skruv- formigt något mer än ett varv runt tankväggen. Rännans 2 längd bör vara åtminstone ett halvt varv i tanken för att en tillräcklig separationseffekt skall uppnås. Företrädesvis bör längden vara minst ett varv. Ett inlopp 3 för flis och vatten är placerat upptill i tanken 1 vid rännans 2 övre ände. Rännan begränsas utåt av tankväggen och inåt av en kant 4 vars höjd avtar nedåt längs rännan. Rännas botten lutar utåt mot tankväggen och denna lutning ökar utefter rännan. Vidare kan rännan vara brantare i början. Den första delen, lämpligen den första fjärdedelen av rännan kan även förses med ojämnheter eller avaatser i botten medan den senare delen bör vara slät.The embodiment shown comprises a cylindrical tank 1. The size of the tank is of course dependent on the desired capacity. Its diameter can, for example, be 1.5-3 m. Inside, the tank is provided with a gutter 2 which extends helically slightly more than one turn around the tank wall. The length of the gutter 2 should be at least half a turn in the tank in order to achieve a sufficient separation effect. Preferably, the length should be at least one turn. An inlet 3 for chips and water is located at the top of the tank 1 at the upper end of the gutter 2. The gutter is limited outwards by the tank wall and inwards by an edge 4 whose height decreases downwards along the gutter. The bottom of the gutter slopes outwards towards the tank wall and this slope increases along the gutter. Furthermore, the gutter may be steeper in the beginning. The first part, preferably the first quarter of the gutter, can also be provided with irregularities or abuts at the bottom, while the latter part should be smooth.
I slutet av rännan invid tankväggen är ett skrotuttag 5 placerat. Skrotuttaget är lämpligen utformat för intervall- utslussning, dvs med två ventiler som öppnas växelvis. Till skrotuttaget 5 är en ledning 6 för vattentillförsel ansluten för att åstadkomma ett motströmsflöde genom skrotuttaget.At the end of the gutter next to the tank wall, a scrap outlet 5 is placed. The scrap outlet is suitably designed for interval shut-off, ie with two valves that are opened alternately. A line 6 for water supply is connected to the scrap outlet 5 to provide a countercurrent flow through the scrap outlet.
Tankens 1 botten är utformad konisk så att den sluttar ned mot ett centralt utlopp 7 för tvättad flis. Runt utlopp- et 7 kan eventuellt en eller flera extra ringformade skrot- spärrar 8 anordnas. I anslutning till dessa är öppningar för manuell tömning placerade. 462 see Den flis som skall tvättas tillförs tillsammans med vatten genom inloppet 1 ned i rännan 3 och följer denna nedåt. Därvid samlas tyngre föremål och partiklar genom sedimentering på rännans botten. Skrotavskiljningen för- stärks genom centrifugalkraftens inverkan samt av att rännans botten lutar utåt mot tankväggen. Ûjämnheter i botten av rännans första del samt en brantare lutning be- fjämjar skrotavskiljningen i denna del av rännan medan sedimentering eftersträvas i den senare delen av rännan.The bottom of the tank 1 is conical so that it slopes down towards a central outlet 7 for washed chips. Around the outlet 7, one or more additional annular scrap barriers 8 can optionally be arranged. Adjacent to these are openings for manual emptying. 462 see The chips to be washed are supplied together with water through the inlet 1 down into the gutter 3 and follow this downwards. In this case, heavier objects and particles collect by sedimentation at the bottom of the gutter. Scrap separation is strengthened by the effect of centrifugal force and by the fact that the bottom of the gutter slopes outwards towards the tank wall. Unevenness at the bottom of the first part of the gutter and a steeper slope promotes scrap separation in this part of the gutter, while sedimentation is sought in the latter part of the gutter.
Samtidigt som föroreningarna förs mot rännans botten och ut mot tankväggen sker en överbreddning av flis och vatten från ytan över kanten 4. Denna kant bör ha en konti- nuerligt avtagande höjd avpassad så att endast 30-50 % av inkommande flöde av flis/vatten återstår i slutet av rännan.At the same time as the contaminants are carried towards the bottom of the gutter and out towards the tank wall, chips and water are spread from the surface over the edge 4. This edge should have a continuously decreasing height adjusted so that only 30-50% of incoming chip / water flow remains at the end of the gutter.
Föroreningarna som samlats på rännans botten invid tank- väggen tas ut genom skrotuttaget 5. Därvid bör motstöms- flödet genom ledningen 6 vara 0,1-0,2 m/sek. Det från skrot befriade flödet av flis och vatten tas ut genom utloppet 7 för vidare transport medelst en pump 9 till efterföljande behandlingssteg som vanligen är urvattning.The contaminants that have accumulated on the bottom of the gutter next to the tank wall are removed through the scrap outlet 5. The countercurrent flow through the line 6 should be 0.1-0.2 m / sec. The flow of chips and water freed from scrap is taken out through the outlet 7 for further transport by means of a pump 9 to subsequent treatment steps which are usually dewatering.
De extra skrotspärrar 8 som kan vara anordnade runt det centrala utloppet utgör en säkerhet vid extrem skrotbelast- ning som kan uppkomma undantagsvis. Detta kan exempelvis inträffa då flisen hämtas med bottenskrap av en flisskopa på en flisplan.The extra scrap barriers 8 that can be arranged around the central outlet constitute a safety in the event of extreme scrap load which can arise exceptionally. This can occur, for example, when the chips are retrieved with a bottom scraper from a chip bucket on a chip plane.
Uppfinningen är givetvis inte begränsad till den visade utföringsformen utan kan varieras inom uppfinningstankens 138m.The invention is of course not limited to the embodiment shown but can be varied within the 138m of the inventive tank.
Claims (6)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8804261A SE462566B (en) | 1988-11-25 | 1988-11-25 | DEVICE FOR WASHING THE TIP |
EP89912677A EP0445143A1 (en) | 1988-11-25 | 1989-11-20 | Device for chip washing |
AU45221/89A AU4522189A (en) | 1988-11-25 | 1989-11-20 | Device for chip washing |
JP1511729A JPH04501891A (en) | 1988-11-25 | 1989-11-20 | Chip cleaning equipment |
PCT/SE1989/000669 WO1990006394A1 (en) | 1988-11-25 | 1989-11-20 | Device for chip washing |
NZ231500A NZ231500A (en) | 1988-11-25 | 1989-11-23 | Helical chute washer for removing impurities from wood chips |
CA002003768A CA2003768A1 (en) | 1988-11-25 | 1989-11-24 | Device for chip washing |
NO91912007A NO912007L (en) | 1988-11-25 | 1991-05-24 | TIP WASHING DEVICE. |
FI912523A FI912523A0 (en) | 1988-11-25 | 1991-05-24 | TVAETTANORDNING FOER FLIS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8804261A SE462566B (en) | 1988-11-25 | 1988-11-25 | DEVICE FOR WASHING THE TIP |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8804261D0 SE8804261D0 (en) | 1988-11-25 |
SE462566B true SE462566B (en) | 1990-07-16 |
Family
ID=20374062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8804261A SE462566B (en) | 1988-11-25 | 1988-11-25 | DEVICE FOR WASHING THE TIP |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0445143A1 (en) |
JP (1) | JPH04501891A (en) |
AU (1) | AU4522189A (en) |
CA (1) | CA2003768A1 (en) |
FI (1) | FI912523A0 (en) |
NZ (1) | NZ231500A (en) |
SE (1) | SE462566B (en) |
WO (1) | WO1990006394A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4857094B2 (en) * | 2006-12-01 | 2012-01-18 | 前澤工業株式会社 | Sand settling equipment |
CN114180343A (en) * | 2021-10-29 | 2022-03-15 | 淮北矿业股份有限公司 | Method for improving ash conveying system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE495585A (en) * | 1949-07-14 | |||
US3765532A (en) * | 1971-07-12 | 1973-10-16 | Rex Chainbelt Inc | Wood chip washer |
NZ207756A (en) * | 1983-04-13 | 1986-01-24 | Mineral Deposits Ltd | Spiral separator:deflecting layer over concentrate layer |
-
1988
- 1988-11-25 SE SE8804261A patent/SE462566B/en not_active IP Right Cessation
-
1989
- 1989-11-20 WO PCT/SE1989/000669 patent/WO1990006394A1/en not_active Application Discontinuation
- 1989-11-20 JP JP1511729A patent/JPH04501891A/en active Pending
- 1989-11-20 AU AU45221/89A patent/AU4522189A/en not_active Abandoned
- 1989-11-20 EP EP89912677A patent/EP0445143A1/en not_active Withdrawn
- 1989-11-23 NZ NZ231500A patent/NZ231500A/en unknown
- 1989-11-24 CA CA002003768A patent/CA2003768A1/en not_active Abandoned
-
1991
- 1991-05-24 FI FI912523A patent/FI912523A0/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU4522189A (en) | 1990-06-26 |
SE8804261D0 (en) | 1988-11-25 |
FI912523A0 (en) | 1991-05-24 |
CA2003768A1 (en) | 1990-05-25 |
NZ231500A (en) | 1991-07-26 |
WO1990006394A1 (en) | 1990-06-14 |
JPH04501891A (en) | 1992-04-02 |
EP0445143A1 (en) | 1991-09-11 |
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