SE411133B - METHOD AND ARRANGEMENTS WHEN DEFIBRING CHIPPING IN ANGA TRANSPORT PRODUCED FIBER MASS FROM A DEFIBROR TO A SEPARATOR - Google Patents
METHOD AND ARRANGEMENTS WHEN DEFIBRING CHIPPING IN ANGA TRANSPORT PRODUCED FIBER MASS FROM A DEFIBROR TO A SEPARATORInfo
- Publication number
- SE411133B SE411133B SE7804602A SE7804602A SE411133B SE 411133 B SE411133 B SE 411133B SE 7804602 A SE7804602 A SE 7804602A SE 7804602 A SE7804602 A SE 7804602A SE 411133 B SE411133 B SE 411133B
- Authority
- SE
- Sweden
- Prior art keywords
- steam
- separator
- ejector
- defibrillator
- pressure
- Prior art date
Links
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
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
Description
15 20 25 30 35 7804602 -6 Uppfinningens beskrives i det följande närmare med hänvisning till det på bifogade ritning visade installationsschemat. The invention is described in more detail below with reference to the installation diagram shown in the accompanying drawing.
Råflis, som eventuellt kan vara något förvärmd, till- föres skruvmataren 1 vilken pressar flisen in i defibrörens 2 förvär- mare 3. En tillförselledning 4 för färskånga är ansluten till för- värmaren 3 för värmning av flisen åtminstone under defibreringsproces- sens startskede. Den till defibreringstemperatur värmda flisen matas av en ytterligare skruvmatare 5 vidare in i defibrören 2. Fibermassan som framställs i defibrören uttages tillsammans med tillförd såväl som i defibrören alstrad ånga medelst en ejektor 6, vars sugsida 7 är ansluten till defibrörens utlopp É.Raw chips, which may be slightly preheated, are fed to the screw feeder 1 which presses the chips into the preheater 3 of the defibrillator 2. A fresh steam supply line 4 is connected to the preheater 3 for heating the chips at least during the start stage of the defibration process. The chip heated to defibration temperature is fed by an additional screw feeder 5 further into the defibrillator 2. The fibrous mass produced in the defibrillator is taken out together with supplied steam generated in the defibrillator by means of an ejector 6, the suction side 7 of which is connected to the defibrillator outlet É.
Ejektorns drivflöde utgörs av ånga och de genom ejek- torns utlopp 9 avgående, sammanförda flödena består således av flis- massa och ånga, som av ejektorn transporteras till en avskiljare 10, till vars inlopp 11 ejektorutloppet 9 är anslutet medelst en rörled- ning. Avskiljaren består av två seriekopplade cykloner 12.The drive flow of the ejector consists of steam and the combined flows departing through the ejector outlet 9 thus consist of chips and steam, which are transported by the ejector to a separator 10, to whose inlet 11 the ejector outlet 9 is connected by means of a pipeline. The separator consists of two series-connected cyclones 12.
Den från ångan i cyklonerna 12 separerade massan ut- tages för användning på gängse sätt genom utmatningsanordningar av sådant slag att de trycktätt tillsluter cyklonernas uttagsändar 13, så att cyklonerna kan trycksättasÄ Den från fibermassa befriade ångan uttages från den sista cyklonens 12 gasutlopp 1% och föres via en ledning till sugsidan av en fläkt 15, vars trycksida via en ytterligare ledning är ansluten till ejektorns 6 inlopp 16 för drivflödet. A Ejektorn 6, avskiljaren 10 och fläkten 15 ingår så- ledes i en cirkulationskrets i ett slutet system i vilket även avskil- jaren är trycksatt till i storleksordning samma tryck som råder i defibrören. Ejektorns drivflöde utgöres av ånga som avskilts från mas- san och uttagits från avskiljaren 10 och bibringats erforderlig tryck- stegring i fläkten 15. Tillförseln av fårskånga genom ledningen U kan varieras, vanligen reduceras, efter ett startskede och tillskott av ånga för värmningen i förvärmaren 3 uttages i stället ur cirkulations- kretsen via ledningen 17. Malenergin i defibrören alstrar av fukt ur 3 flisen ett överskott av ånga som, tack vare trycksättningen av hela systemet, kan uttagas med högt tryck och hög temperatur genom en ytter- ligare ledning 18, varigenom anordningen enligt uppfinningen kan tjäna _-.. =,-.-1..-. även som energikälla för många olika ändamål.The mass separated from the steam in the cyclones 12 is taken out for use in the usual way by discharge devices of such a kind that they tightly close the outlet ends 13 of the cyclones, so that the cyclones can be pressurized. The steam freed from fibrous pulp is taken out of the last cyclone 12 gas outlet 1% and passed via a line to the suction side of a fan 15, the pressure side of which is connected via an additional line to the inlet 16 of the ejector 6 for the drive flow. A The ejector 6, the separator 10 and the fan 15 are thus part of a circulating circuit in a closed system in which the separator is also pressurized to the same pressure as prevails in the defibrillator. The drive flow of the ejector consists of steam separated from the mass and taken from the separator 10 and imparted the required pressure increase in the fan 15. The supply of sheep steam through the line U can be varied, usually reduced, after a start stage and addition of steam for heating in the preheater 3. is instead taken out of the circulation circuit via line 17. The grinding energy in the defibrillators generates moisture from the 3 chips an excess of steam which, thanks to the pressurization of the whole system, can be taken out with high pressure and high temperature through an additional line 18, whereby the device according to the invention can serve _- .. =, -.- 1 ..-. also as an energy source for many different purposes.
Claims (2)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7804602A SE411133B (en) | 1978-04-21 | 1978-04-21 | METHOD AND ARRANGEMENTS WHEN DEFIBRING CHIPPING IN ANGA TRANSPORT PRODUCED FIBER MASS FROM A DEFIBROR TO A SEPARATOR |
FI791267A FI67102C (en) | 1978-04-21 | 1979-04-18 | SAETT OCH ANORDNING VID DEFIBRERING |
CA325,836A CA1101257A (en) | 1978-04-21 | 1979-04-19 | Method and apparatus in pulping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7804602A SE411133B (en) | 1978-04-21 | 1978-04-21 | METHOD AND ARRANGEMENTS WHEN DEFIBRING CHIPPING IN ANGA TRANSPORT PRODUCED FIBER MASS FROM A DEFIBROR TO A SEPARATOR |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7804602L SE7804602L (en) | 1979-10-22 |
SE411133B true SE411133B (en) | 1979-12-03 |
Family
ID=20334704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7804602A SE411133B (en) | 1978-04-21 | 1978-04-21 | METHOD AND ARRANGEMENTS WHEN DEFIBRING CHIPPING IN ANGA TRANSPORT PRODUCED FIBER MASS FROM A DEFIBROR TO A SEPARATOR |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA1101257A (en) |
FI (1) | FI67102C (en) |
SE (1) | SE411133B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988008050A1 (en) * | 1987-04-15 | 1988-10-20 | Sunds Defibrator Aktiebolag | Method and device at manufacture of fibre pulp |
WO1990011836A1 (en) * | 1989-04-05 | 1990-10-18 | Sunds Defibrator Industries Aktiebolag | Device for separating fibres and gas |
WO1990011844A1 (en) * | 1987-10-13 | 1990-10-18 | Plast Och Metall I Hedesunda Ab | Suction device |
-
1978
- 1978-04-21 SE SE7804602A patent/SE411133B/en not_active IP Right Cessation
-
1979
- 1979-04-18 FI FI791267A patent/FI67102C/en not_active IP Right Cessation
- 1979-04-19 CA CA325,836A patent/CA1101257A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1988008050A1 (en) * | 1987-04-15 | 1988-10-20 | Sunds Defibrator Aktiebolag | Method and device at manufacture of fibre pulp |
WO1990011844A1 (en) * | 1987-10-13 | 1990-10-18 | Plast Och Metall I Hedesunda Ab | Suction device |
WO1990011836A1 (en) * | 1989-04-05 | 1990-10-18 | Sunds Defibrator Industries Aktiebolag | Device for separating fibres and gas |
Also Published As
Publication number | Publication date |
---|---|
CA1101257A (en) | 1981-05-19 |
FI791267A (en) | 1979-10-22 |
FI67102C (en) | 1985-01-10 |
FI67102B (en) | 1984-09-28 |
SE7804602L (en) | 1979-10-22 |
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NUG | Patent has lapsed |
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