NO142001B - PROCEDURE FOR AA MAKE FIBER MASS OF VEGETABLE RESP. FIBROEST MATERIALS - Google Patents
PROCEDURE FOR AA MAKE FIBER MASS OF VEGETABLE RESP. FIBROEST MATERIALS Download PDFInfo
- Publication number
- NO142001B NO142001B NO741211A NO741211A NO142001B NO 142001 B NO142001 B NO 142001B NO 741211 A NO741211 A NO 741211A NO 741211 A NO741211 A NO 741211A NO 142001 B NO142001 B NO 142001B
- Authority
- NO
- Norway
- Prior art keywords
- container
- pressure
- steam
- temperature
- supplied
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 235000013311 vegetables Nutrition 0.000 title claims abstract description 4
- 239000000835 fiber Substances 0.000 title claims description 3
- 239000000463 material Substances 0.000 title description 2
- 239000002657 fibrous material Substances 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 3
- 238000004061 bleaching Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000005418 vegetable material Substances 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000002609 medium Substances 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000006163 transport media Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- WQDSRJBTLILEEK-UHFFFAOYSA-N sulfurous acid Chemical compound OS(O)=O.OS(O)=O WQDSRJBTLILEEK-UHFFFAOYSA-N 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/30—Disc mills
Abstract
Fremgangsmåte for å fremstille fibermasse av vegetabilsk resp. fibrøst materiale.Process for producing fibrous pulp from vegetable resp. fibrous material.
Description
Foreliqgende oppfinnelse vedrører en fremgangsmåte ved fremstilling av vegetabilsk resp. fibrost materiale, slik-som treflis omfattende forvarming av råmaterialet i en lukket beholder ved hjelp av damp og derpå maling i et måleapparat mellom i dette anbragte maleskiver under overtrykk. The present invention relates to a method for the production of vegetable or fibrous material, such as wood chips, comprising preheating the raw material in a closed container using steam and then grinding in a measuring device between grinding disks placed in it under positive pressure.
Forvarmingstemperaturen kan være under eller over 100°C, og trykket i beholderen er hittil blitt avveiet i overensstemmelse med den tilsiktede temperatur. Når det forvarmede råmateriale, f.eks. flis, innfores i måleapparatet genereres damp under malingen mellom maleskivene. For å hindre en tilbakestromning av damp inn i beholderen er det åpenbart nodvendig å holde et hoyere trykk i beholderen enn i malehuset. The preheating temperature can be below or above 100°C, and the pressure in the container has so far been balanced in accordance with the intended temperature. When the preheated raw material, e.g. chips, are introduced into the measuring device, steam is generated during the painting between the painting discs. In order to prevent a backflow of steam into the container, it is obviously necessary to maintain a higher pressure in the container than in the grinding house.
Dette gjelder spesielt hvis særskilt gassformet transportmedium, slik som damp under trykk, innfores i malehuset for å lette av-gangen av den malte masse fra huset resp. i dettes avlop anbragt utblåsingsventil, slik det fremgår f.eks. av de svenske patent-skrifter 357.011 og 359.332. Ifolge oppfinnelsen tilfores nu et annet gassformet medium enn damp til forvarmebeholderen for å opprettholde det nodvendige hoyere trykk i denne. Man kan på denne måte avveie temperaturen i forvarmeren på et nivå, som er gunstigst for råmaterialet f.eks. for å unngå misfarving av dette. Ifolge oppfinnelsen har videre trykkmediet som er til-fort beholderen, en kjolende virkning også i malesonen mellom maleskivene i det oyeblikk da fibrene frilegges fra hverandre. Ifolge oppfinnelsen påvirkes den fremstilte masses kvalitet, f.eks. farve og målbarhet på en gunstig måte. Oppfinnelsen er spesielt tilpassbar ved den såkalte termomekaniske metode, hvor malingen utfores uten hjelp av spesielle kjemikalier. This applies in particular if a special gaseous transport medium, such as steam under pressure, is introduced into the grinding house to facilitate the departure of the ground mass from the house or exhaust valve placed in its drain, as can be seen e.g. of the Swedish patent documents 357,011 and 359,332. According to the invention, a gaseous medium other than steam is now supplied to the preheating container in order to maintain the necessary higher pressure in it. In this way, the temperature in the preheater can be adjusted to a level that is most favorable for the raw material, e.g. to avoid discoloration of this. According to the invention, the pressure medium that is fed to the container also has a cooling effect in the grinding zone between the grinding discs at the moment when the fibers are exposed from each other. According to the invention, the quality of the produced pulp is affected, e.g. color and measurability in a favorable way. The invention is particularly adaptable to the so-called thermomechanical method, where the painting is carried out without the aid of special chemicals.
Oppfinnelsen skal beskrives nærmere nedenfor under henvisning til en på tegningen skjematisk i sideriss vist utforelsesform,.. idet også andre egenskaper som kjennetegner oppfinnelsen skal angis. The invention shall be described in more detail below with reference to an embodiment shown schematically in a side view in the drawing, while other characteristics that characterize the invention shall also be indicated.
På tegningen betegner 10 en lagerbinge for råmaterialet, slik som tremateriale i oppdelt form eller såkalt flis. Råmaterialet innfores av en innmatingsanordning 12, f.eks. en skrue, In the drawing, 10 denotes a storage bin for the raw material, such as wooden material in split form or so-called chips. The raw material is introduced by a feeding device 12, e.g. a screw,
til en under trykk stående beholder 14, idet innmatingsanord-ningen tetter mot dette trykk. Beholderen 14 er nedentil over en transportskrue 16 forbundet med et måleapparat 18 av skive-type, som omfatter et lukket hus 20, i hvilket er anbragt en stasjonær maleskive 22 og en på en aksel 24 i stativet 26 lag-ret roterbar maleskive 28. Det av transportskruen 16 tilforte råmateriale munner gjennom en sentral åpning ved den indre peri-feri ut i en spalte 31 mellom de to maleskiver 22, 28. Det om-givende malehus 20 har f.eks. nedentil et avlop 32, i hvilket det sitter en utblåsningsventil 34, ved hvilken avløpets gjen-norns tr omnings are al reguleres. Avlopet 32 kan over en ledning 36 stå i forbindelse med en syklon 38 for å skille ut dampen som folger med det malte produkt. to a pressurized container 14, the feeding device sealing against this pressure. The container 14 is connected below via a transport screw 16 to a disc-type measuring device 18, which comprises a closed housing 20, in which is placed a stationary grinding wheel 22 and a rotatable grinding wheel 28 stored on a shaft 24 in the stand 26. of the transport screw 16 supplied raw material mouths through a central opening at the inner periphery into a gap 31 between the two grinding discs 22, 28. The surrounding grinding housing 20 has e.g. below, a drain 32, in which there is a blow-off valve 34, by which the drain's general drum circulation area is regulated. The drain 32 can be connected via a line 36 to a cyclone 38 to separate out the steam that accompanies the ground product.
Fra en ikke vist trykkilde tilfores damp under overtrykk gjennom en ledning 40 til beholderen 14. I ledningen 40 er da en ventil 42 anbragt, som påvirkes av et innenfor området tempera-turavsokende organ 44 og en temperaturregulator 46, slik at onsket temperatur opprettholdes i beholderen 14. Denne temperatur kan være under eller over 100°C og kan belope seg til f.eks. 90 - 140°C. Samtidig kan et damptrykk herske i beholderen på eller over atmosfæretrykket. From a pressure source not shown, steam is supplied under excess pressure through a line 40 to the container 14. In the line 40, a valve 42 is placed, which is affected by a temperature-detecting device 44 within the area and a temperature regulator 46, so that the desired temperature is maintained in the container 14. This temperature can be below or above 100°C and can amount to e.g. 90 - 140°C. At the same time, a vapor pressure can prevail in the container at or above atmospheric pressure.
Gjennom en ledning 48, i hvilken er anbragt en manuelt eller regulatorstyrt ventil 50, kan damp tilfores malehuset 20 fra ledningen .40. I ledningen 48 kan der også være en tilbakeslags-ventil 52. Through a line 48, in which a manually or regulator-controlled valve 50 is placed, steam can be supplied to the paint housing 20 from the line .40. In the line 48, there may also be a non-return valve 52.
I beholderen 14 munner en ledning -54 ut fra en trykkluftkilde (ikke vist), idet det i denne ledning er anbragt en ventil 56, som regulerer tilforselen av trykkluft til beholderen 14 via et trykkavsokende organ 58 i beholderens indre og en regulator 60 for innstilling på onsket trykk. In the container 14, a line -54 opens from a source of compressed air (not shown), as a valve 56 is placed in this line, which regulates the supply of compressed air to the container 14 via a pressure detecting body 58 in the interior of the container and a regulator 60 for setting at the desired pressure.
Råmaterialet, som tilfores forvarmebeholderen 14, inneholder f.eks. 30 - 60% vann. Det oppvarmes i beholderen til onsket temperatur for det av transportskruen innfores i spalten 31 mellom maleskivene 22, 28. Ved målearbeidet og den herunder utviklede friksjonsvarme genereres damp. Videre kan damp tilfores huset gjennom ledningen 48 for å lette transporten av den ferdige masse ut av malehuset. Hver av disse faktorer med-forer jo en trykkstigning i malehuset og for å hindre at damp trenger bakveien inn i beholderen 14 tilfores nu luft til denne, slik at nodvendig overtrykk fåes ved addering av damp-og lufttrykk i beholderen. På denne måte kan det i beholderen opprettholdes en temperatur, som er vesentlig lavere enn hva som svarer til en atmosfære av bare vanndamp på samme trykk. Temperaturen av råmaterialet eller flisen i beholderen 14 kan avveies på gunstigste måte for å hindre misfarving av flisen og for å få en positiv mating av råmaterialet gjennom malespal-ten 31. Den tilforte luft virker for ovrig som kjolemedium under selve maleprosessen mellom maleskivene og påvirker også da massens lyshet og forovrig målbarhet. Malingen kan med ut- The raw material, which is supplied to the preheating container 14, contains e.g. 30 - 60% water. It is heated in the container to the desired temperature before the transport screw is inserted into the gap 31 between the grinding discs 22, 28. During the measuring work and the frictional heat developed below, steam is generated. Furthermore, steam can be supplied to the housing through line 48 to facilitate the transport of the finished mass out of the grinding housing. Each of these factors brings with it an increase in pressure in the grinding house and to prevent steam penetrating the back way into the container 14, air is now supplied to it, so that the necessary excess pressure is obtained by adding steam and air pressure in the container. In this way, a temperature can be maintained in the container, which is significantly lower than what corresponds to an atmosphere of just water vapor at the same pressure. The temperature of the raw material or the tile in the container 14 can be balanced in the most favorable way to prevent discolouration of the tile and to have a positive feed of the raw material through the grinding gap 31. The added air also acts as a dressing medium during the actual grinding process between the grinding discs and also affects then the lightness of the mass and overall measurability. The paint can with
merket resultat gjennomføres uten eller med begrenset tilset- the marked result is carried out without or with limited addi-
ning av kjemikalier av konvensjonell type f.eks. bisulfitt-sulfittblanding. ning of chemicals of a conventional type, e.g. bisulfite-sulfite mixture.
Istedet for luft kan som trykkmedium i beholderen 14 anvendes andre gasser, som ikke kondenserer i beholderen resp. er noy-trale i forhold til råmaterialet. Det gassformede medium kan ha en blekende innvirkning på flisen, slik som tilfellet er med SC^-gass. Det gjennom ledningen 48 tilforte transportmedium Instead of air, other gases can be used as pressure medium in the container 14, which do not condense in the container or is neutral in relation to the raw material. The gaseous medium can have a bleaching effect on the tile, as is the case with SC^ gas. The transport medium was added through the line 48
under trykk behover ikke være vanndamp men kan likeledes ut-gjores av f.eks. luft. Oppfinnelsen kan med fordel kombineres med den utførelse, som fremgår av de svenske patenter 357.011 under pressure does not need to be water vapor but can also be made of e.g. air. The invention can advantageously be combined with the embodiment, which appears in the Swedish patents 357,011
og 359.332. and 359,332.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7306030A SE372299B (en) | 1973-04-27 | 1973-04-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
NO741211L NO741211L (en) | 1974-10-29 |
NO142001B true NO142001B (en) | 1980-03-03 |
NO142001C NO142001C (en) | 1980-06-11 |
Family
ID=20317326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO741211A NO142001C (en) | 1973-04-27 | 1974-04-03 | PROCEDURE FOR AA MAKE FIBER MASS OF VEGETABLE RESP. FIBROEST MATERIALS. |
Country Status (8)
Country | Link |
---|---|
US (1) | US3910505A (en) |
JP (1) | JPS5425121B2 (en) |
CA (1) | CA1013600A (en) |
FI (1) | FI52125C (en) |
FR (1) | FR2227055B1 (en) |
GB (1) | GB1462995A (en) |
NO (1) | NO142001C (en) |
SE (1) | SE372299B (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE359332B (en) * | 1971-12-20 | 1973-08-27 | Reinhall Rolf | |
US4037792A (en) * | 1972-10-23 | 1977-07-26 | Sca Development Aktiebolag | Continuously refining raw fibrous material to produce mechanical refiner pulp |
FI51216C (en) * | 1975-04-04 | 1976-11-10 | Yhtyneet Paperitehtaat Oy | Method and device for producing hot abrasive pulp. |
JPS5258301A (en) * | 1975-11-08 | 1977-05-13 | Matsushita Electric Ind Co Ltd | Electronic tuning circuit |
SE419659B (en) * | 1976-03-19 | 1981-08-17 | Rolf Bertil Reinhall | SET AND DEVICE FOR MANUFACTURING FIBER MASS OF FIBER LIGNOCELLULOSALLY MATERIAL |
SE413784B (en) * | 1976-08-06 | 1980-06-23 | Isel Sa | SET AND DEVICE TO USE IN DEFIBRATION ZONE DEVELOPED HEAT TO MINIMIZE CONSUMPTION WHEN PREPARING MASS FOR FIBER DISC |
US4072274A (en) * | 1977-02-08 | 1978-02-07 | Yhtyneet Paperitehtaat Osakeyhtio Jylhavaara | Procedure and apparatus for preparing hot groundwood |
FI57980C (en) * | 1978-02-16 | 1980-11-10 | Tampella Oy Ab | FOERFARANDE OCH SLIPVERK FOER AVLAEGSNING AV SLIPMASSA VID SLIPNING AV VED UNDER TRYCK |
FR2420598A1 (en) * | 1978-03-21 | 1979-10-19 | Voith Gmbh | METHOD AND DEVICE FOR MANUFACTURING WOOD PULP |
SE427759B (en) * | 1981-10-16 | 1983-05-02 | Sca Development Ab | WANT TO REDUCE ENERGY CONSUMPTION, POSSIBLE HIGH ROTATION SPEEDS AND IMPROVE MASS QUALITY BY MECHANICAL PROCESSING OF CELLULOSIC MATERIAL IN MALA APPLIANCES AND DEVICE IMPLEMENTATION DEVICE |
SE429874B (en) * | 1982-02-16 | 1983-10-03 | Sunds Defibrator | SET AND DEVICE FOR MANUFACTURING FIBER MASS AND LIGNOCELLULOSALLY MATERIAL |
ATE144298T1 (en) * | 1992-12-05 | 1996-11-15 | Voith Gmbh J M | WASTE PAPER DIGESTER |
WO1996041914A1 (en) * | 1995-06-12 | 1996-12-27 | Andritz Sprout-Bauer, Inc. | Low-resident, high-temperature, high-speed chip refining |
US6899791B2 (en) * | 1997-08-08 | 2005-05-31 | Andritz Inc. | Method of pretreating lignocellulose fiber-containing material in a pulp refining process |
DE19712651A1 (en) * | 1997-03-26 | 1998-10-01 | Voith Sulzer Stoffaufbereitung | Method and device for producing a hot, mostly paper fiber-containing crumb |
DE19712653C2 (en) | 1997-03-26 | 2002-10-24 | Voith Paper Fiber Systems Gmbh | Method and device for dispersing a waste paper pulp |
DE10102449C1 (en) | 2001-01-19 | 2002-03-21 | Voith Paper Patent Gmbh | Disperser for high-consistency fibrous papermaking material, comprises comminuter with an internal, counter-rotating toothed ring turning at different speed than the main rotor |
CN102286894A (en) * | 2011-09-30 | 2011-12-21 | 浙江凯丰纸业有限公司 | Constant quantity and pressure beating method and device of disk mill |
CN108468242B (en) * | 2018-05-15 | 2020-07-14 | 温州捷高科技有限公司 | Low-carbon and environment-friendly toilet paper recycling device |
CN109537337A (en) * | 2018-07-16 | 2019-03-29 | 广西综改咨询服务有限公司 | A kind of paper grade (stock) timber crushing grinding device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1795603A (en) * | 1928-03-08 | 1931-03-10 | Bauer Bros Co | Method of producing pulp |
US2396587A (en) * | 1941-03-20 | 1946-03-12 | American Defibrator | Apparatus for producing pulp |
US3016324A (en) * | 1957-03-07 | 1962-01-09 | Bauer Bros Co | Method and apparatus for producing wood pulp |
DE1951539A1 (en) * | 1968-10-23 | 1970-05-06 | Reinhall Rolf Bertil | Method and device for the production of molded bodies from plant material |
US3661328A (en) * | 1970-03-30 | 1972-05-09 | Bauer Bros Co | Pulp refining system and process |
US3765611A (en) * | 1972-08-07 | 1973-10-16 | Bauer Bros Co | Refining process |
-
1973
- 1973-04-27 SE SE7306030A patent/SE372299B/xx unknown
-
1974
- 1974-04-03 NO NO741211A patent/NO142001C/en unknown
- 1974-04-09 GB GB1559674A patent/GB1462995A/en not_active Expired
- 1974-04-11 US US459899A patent/US3910505A/en not_active Expired - Lifetime
- 1974-04-18 FI FI741164A patent/FI52125C/en active
- 1974-04-23 JP JP4515574A patent/JPS5425121B2/ja not_active Expired
- 1974-04-26 CA CA198,220A patent/CA1013600A/en not_active Expired
- 1974-04-26 FR FR7414752A patent/FR2227055B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3910505A (en) | 1975-10-07 |
FR2227055A1 (en) | 1974-11-22 |
NO142001C (en) | 1980-06-11 |
FI52125C (en) | 1977-06-10 |
JPS5013601A (en) | 1975-02-13 |
DE2415685B2 (en) | 1977-03-03 |
GB1462995A (en) | 1977-01-26 |
NO741211L (en) | 1974-10-29 |
SE372299B (en) | 1974-12-16 |
FR2227055B1 (en) | 1978-01-27 |
FI52125B (en) | 1977-02-28 |
DE2415685A1 (en) | 1974-11-14 |
CA1013600A (en) | 1977-07-12 |
JPS5425121B2 (en) | 1979-08-25 |
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