EP3027806B1 - Anlage und verfahren zum verarbeiten von faserstoffen - Google Patents

Anlage und verfahren zum verarbeiten von faserstoffen Download PDF

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Publication number
EP3027806B1
EP3027806B1 EP14753201.4A EP14753201A EP3027806B1 EP 3027806 B1 EP3027806 B1 EP 3027806B1 EP 14753201 A EP14753201 A EP 14753201A EP 3027806 B1 EP3027806 B1 EP 3027806B1
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EP
European Patent Office
Prior art keywords
steam
line
digester
blow
mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14753201.4A
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German (de)
English (en)
French (fr)
Other versions
EP3027806A1 (de
Inventor
Clemens SEIDL
Christian RADHUBER
Reinhard Schlager
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Andritz AG
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Andritz AG
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Publication date
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Priority to PL14753201T priority Critical patent/PL3027806T3/pl
Publication of EP3027806A1 publication Critical patent/EP3027806A1/de
Application granted granted Critical
Publication of EP3027806B1 publication Critical patent/EP3027806B1/de
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    • 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
    • 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
    • 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
    • D21C7/00—Digesters

Definitions

  • the invention relates to a plant for processing pulps with a pre-damper, a digester and a refiner, which is connected via a blow pipe with a dryer, wherein in the blowpipe means for continuously discharging a portion of the steam is arranged and that a discharge opening for steam is connected from the device via a steam line with the pre-damper and / or the digester, wherein the device is in open communication with the continuing in the flow direction blowing line.
  • the invention further relates to a process for processing fibrous materials, wherein the raw material to be processed, e.g. Wood chips, one after the other a pre-damper, a stove, a refiner and a blower is fed to a dryer, wherein the pulp-steam mixture after the refiner and before the dryer in a device continuously a portion of the steam is removed and that the extracted steam the Pre-damper and / or the digester is supplied, wherein the pulp-steam mixture from the device (15) is continuously further promoted by an open connection to the blow pipe.
  • the raw material to be processed e.g. Wood chips
  • the steam that emerges from the refiner together with the fibers is not recovered, but is introduced into the dryer.
  • this represents an increased expenditure of energy for the drying EP 1834747A2 a method and an apparatus for the production of moldings from lignocellulosic bevels.
  • the plant has a separation device, which is designed as a ceramic filter.
  • the DE 3728123A1 further describes a process for the production of shredded pulp material for the production of fiberboard.
  • the vapor-fiber mixture resin is supplied before it is cooled and the steam, preferably completely, is separated under atmospheric pressure.
  • the impregnated wood fibers are then conveyed intermittently via a rotary valve air flow and fed through a further rotary valve intermittently to a molding station.
  • the DE 102008026677B3 shows a method for drying lignocellulosic fibers and a vapor separator thereto.
  • a water vapor fiber stream is directed onto a screen drum, with the water vapor passing through the screen drum and the fibers being caught and scraped off the surface of the screen drum.
  • the pressure-tight measuring sluice then directs the fibers to a dryer. After the dryer, the superfluous air-water vapor mixture is deposited in a cyclone separator.
  • the invention is therefore based on the object to provide a system and a method in which the energy expenditure u.a. can be reduced for drying.
  • the device Since only a portion of the steam is removed in the device, the device need not be sealed off downstream of the blowpipe and the pulp-steam mixture can be easily further promoted with a sufficient amount of steam in the blowpipe without causing lumping the fibers come.
  • the device has a pre-damper 1, to which raw material to be processed, for example wood chips, is supplied via a line 2. After the pre-damper 1, the pre-damped raw material via a plug screw 3, a Cooker 4 and a Kocheraustrag 5 then fed to a refiner 9. After the refiner 9, the thus prepared pulp-steam mixture is fed through a blow line 6 to a dryer 7.
  • a pre-damper 1 to which raw material to be processed, for example wood chips
  • the throughput of pulp-steam mixture can be adjusted by means of a first blow valve 8 on the refiner 9.
  • a device 10 for gluing the fibrous-vapor mixture in the blowpipe 6 may be arranged before the dryer 7, a device 10 for gluing the fibrous-vapor mixture in the blowpipe 6 may be arranged.
  • the pre-damper 1, the cooker 4 and the refiner 9 can be supplied via lines 11, 12, 13, 14 with live steam.
  • a device 15 for the continuous discharge of steam is arranged in the blowpipe, which is a cyclone which separates excess steam, which is not required for transporting the fibers, by centrifugal force from the pulp-steam mixture.
  • This excess steam is passed through a dip tube 16 of the cyclone 15 and further through a
  • the cyclone 15 is in open communication with the continuing blowline 6, so that it does not come to the outlet of the cyclone 15 in the blowpipe 6 to a denser or clumping of the fibers. This is possible because only part of the vapor is removed by the cyclone and the remaining portion of the steam is used to convey the fibers further, so that the cyclone does not have to be completely sealed against the subsequent line 6.
  • a further blowing valve 21 is arranged in the blowing line 6 in the flow direction after the cyclone 15 and then a pressure measuring device 22, with which the pressure in the blowing line 6 is measured.
  • a valve 23 in the first branch line 18 or a valve 24 in the second branch line 19 is opened via the control of the system if necessary. It is also possible in principle to open both valves 23, 24 simultaneously or partially in order to supply both the pre-damper 1 and the cooker 4 with excess steam. In principle, it would also be possible to connect the steam line 17 with a valve installed therein directly only to the pre-damper 1, wherein the withdrawn excess steam could then just be supplied exclusively to the pre-damper 1.
  • a fiber switch 25 is arranged in the blowpipe 6, with which the pulp-steam flow can be passed either to the dryer 7 or to a start-cyclone 26 until the system has reached a stable operating condition.
  • blow valve 8 In normal operation, the blow valve 8 is fully open.
  • the pulp-steam mixture is passed through the cyclone 15 and the fiber switch 25 is set in the direction of the dryer 7.
  • the valves 23, 24 are either open or closed depending on the pressure in the blowpipe 6 measured by the pressure measuring device 22, whereby either the suction pipe of the thermal vapor compressor 20 is supplied with steam or the steam is conducted into the pre-steaming vessel 1.
  • live steam can be added via line 12 into the pre-steaming vessel 1. If the amount of steam withdrawn through the cyclone 15 and supplied via the line 18 is not required in its entirety, it will automatically come to the deposition of the steam via the pre-damping tank 1.
  • the the pulp-steam mixture through the cyclone 15 to The amount of steam taken depends, on the one hand, on the minimum quantity of steam required for the further transport or the further processing of the pulp-steam mixture and, on the other hand, on the fact that clumping of the fibers in the cyclone 15 or thereafter beyond an admissible extent should be avoided, and can take place via the valves 23, 24 and the blowing valve 21 are set.
  • the amount of steam taken off is preferably at least 2% by weight, more preferably at least 10% by weight of steam and preferably at most 70% by weight, particularly preferably at most 20% by weight.
  • the fibrous-steam mixture before the cyclone contains 28% by weight of steam and, after the cyclone, 14% by weight of steam.
  • the difference of 14% by weight of extracted steam can be supplied to the pre-steaming container 1 and / or the digester 4 as described.
  • the blow valve 8 is first closed and the system is heated to operating temperature. Subsequently, the blow valve 8 after the refiner 9 in part and the blow valve 21 is fully opened after the cyclone 15 and the fiber-optic 25 in the direction of start cyclone 26. After reaching the desired fiber quality, the fiber switch 25 is switched in the direction of dryer 7. Then, the blowing valve 21 is slowly closed after the cyclone 15 until the pressure in the cyclone 15 increases. Then the blow valve 8 is slowly opened completely after the refiner 9 and the opening of the blow valve 21 is readjusted. Finally, one of the two valves 23, 24 is slowly opened after the dip tube 16 and the control is activated.
  • the flow rate is reduced and the open valve (s) 23, 24 closed.
  • the blowing valve 8 behind the refiner 9 is then throttled and placed the fiber-optic 25 towards the start-cyclone 26. The system can then be driven down completely.
EP14753201.4A 2013-08-01 2014-07-17 Anlage und verfahren zum verarbeiten von faserstoffen Active EP3027806B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14753201T PL3027806T3 (pl) 2013-08-01 2014-07-17 Urządzenie i sposób przetwarzania materiałów włóknistych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA617/2013A AT514330B1 (de) 2013-08-01 2013-08-01 Anlage und Verfahren zum Verarbeiten von Faserstoffen
PCT/EP2014/001956 WO2015014451A1 (de) 2013-08-01 2014-07-17 Anlage und verfahren zum verarbeiten von faserstoffen

Publications (2)

Publication Number Publication Date
EP3027806A1 EP3027806A1 (de) 2016-06-08
EP3027806B1 true EP3027806B1 (de) 2017-05-03

Family

ID=51390080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14753201.4A Active EP3027806B1 (de) 2013-08-01 2014-07-17 Anlage und verfahren zum verarbeiten von faserstoffen

Country Status (7)

Country Link
EP (1) EP3027806B1 (ru)
AT (1) AT514330B1 (ru)
ES (1) ES2635297T3 (ru)
PL (1) PL3027806T3 (ru)
PT (1) PT3027806T (ru)
RU (1) RU2660056C2 (ru)
WO (1) WO2015014451A1 (ru)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10674185B2 (en) 2015-10-08 2020-06-02 Koninklijke Kpn N.V. Enhancing a region of interest in video frames of a video stream
PL3872256T3 (pl) 2020-02-28 2022-05-09 Fiberboard Gmbh Sposób i układ do przetwarzania do redukcji lotnych związków organicznych ze zrębków drzewnych

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE413784B (sv) * 1976-08-06 1980-06-23 Isel Sa Sett och anordning for att utnyttja i defibreringszonen utvecklat verme for att minimera angforbrukningen vid framstellning av massa for fiberskivor
US4072274A (en) * 1977-02-08 1978-02-07 Yhtyneet Paperitehtaat Osakeyhtio Jylhavaara Procedure and apparatus for preparing hot groundwood
SE429874B (sv) * 1982-02-16 1983-10-03 Sunds Defibrator Sett och anordning vid framstellning av fibermassa an lignocellulosahaltigt material
DE3728123A1 (de) * 1987-08-22 1989-03-02 Hoechst Ag Verfahren zur herstellung von zerfasertem zellulosematerial, insbesondere holzfasern, fuer die herstellung von faserplatten
US7368037B2 (en) * 2003-05-21 2008-05-06 Masonite Corporation Refiner steam separation system for reduction of dryer emissions
DE102006012521B3 (de) * 2006-03-18 2007-10-18 Glunz Ag Verfahren und Vorrichtung zur Herstellung von Formkörpern, insbesondere Platten, aus lignocellulosehaltigen Fasern
DE102008026677B3 (de) * 2008-06-04 2009-10-22 Kronotec Ag Verfahren zum Trocknen von lignocellulosehaltigen Fasern und Dampfabscheider zur Verwendung in dem Verfahren

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
AT514330B1 (de) 2014-12-15
RU2016103931A (ru) 2017-09-04
AT514330A4 (de) 2014-12-15
RU2660056C2 (ru) 2018-07-04
PT3027806T (pt) 2017-08-01
PL3027806T3 (pl) 2017-10-31
EP3027806A1 (de) 2016-06-08
WO2015014451A1 (de) 2015-02-05
ES2635297T3 (es) 2017-10-03

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