EP1588816A1 - Procédé pour la réfrigération rapide d'une presse continue et presse continue - Google Patents

Procédé pour la réfrigération rapide d'une presse continue et presse continue Download PDF

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Publication number
EP1588816A1
EP1588816A1 EP05007278A EP05007278A EP1588816A1 EP 1588816 A1 EP1588816 A1 EP 1588816A1 EP 05007278 A EP05007278 A EP 05007278A EP 05007278 A EP05007278 A EP 05007278A EP 1588816 A1 EP1588816 A1 EP 1588816A1
Authority
EP
European Patent Office
Prior art keywords
temperature
heating
press
continuously operating
heating medium
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.)
Granted
Application number
EP05007278A
Other languages
German (de)
English (en)
Other versions
EP1588816B1 (fr
Inventor
Gernot von Haas Dr.
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.)
Dieffenbacher GmbH and Co KG
Original Assignee
Dieffenbacher GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dieffenbacher GmbH and Co KG filed Critical Dieffenbacher GmbH and Co KG
Publication of EP1588816A1 publication Critical patent/EP1588816A1/fr
Application granted granted Critical
Publication of EP1588816B1 publication Critical patent/EP1588816B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/24—Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/26—Moulding or pressing characterised by using continuously acting presses having a heated press drum and an endless belt to compress the material between belt and drum

Definitions

  • the invention relates to a process for continuous production of wood-based panels, such as chipboard, fiberboard, or the like Wood-based panels, according to the preamble of claim 1 and on a continuously operating press according to claim 14 to Implementation of the procedure.
  • wood-based panels such as chipboard, fiberboard, or the like Wood-based panels
  • the lubrication of the circulation elements is done with a lubricating oil that decomposed above 250 ° C and evaporated more.
  • a lubricating oil that decomposed above 250 ° C and evaporated more.
  • one will Consumption lubrication of the rolling rods performed, which leads to after passing through the pressed material mat through the press nip the oil from the Steel straps and the roll bars is removed. If too little lubricating oil or only cracked lubricating oil in the press nip on the rolling rods available is, then it can damage the roll bars or steel strip to lead. That is, the temperature control in the rolling area of the rolling rods must be guided so that a destruction of the oil is prevented. This too was only insufficiently successful with the existing double belt presses.
  • the invention has for its object to provide a method with which a compression of the wood material mats at higher Heating plate temperatures without risk of fire, without damaging the Circulation elements and the steel bands with a lower reject rate is possible and thus contributes to increasing the capacity of the plant.
  • the solution of the task according to claim 1 is that in the case of rapid reduction of the feed rate of the pressed product mat a certain value up to the stop the supply of the heating medium into the Heating plates with a temperature above 260 ° C stopped and a heating medium with a temperature below 200 ° C, preferably below 100 ° C, for cooling the Heating plates is initiated.
  • a stop of the advance of the wood-based mat occurs relatively frequently, several times the week, by, for example, strong rolling rod course, pressing the Emergency stop, overpressure in the press, failure of sensors in the area Formstranges to stacking, etc., on.
  • the valves for the flow of over 260 ° C hot thermal oils are closed quickly and cold thermal oil is added to the Introduced heating plates and the heating plates cooled to below 230 ° C,
  • the control is such that a cooling time of 5 min to 20 Seconds.
  • the thermal oil from a memory with a temperature below 200 ° C, preferably below 100 ° C, in the heating plates initiated or the hot circulating oil is over a Heat exchanger cooled. It has proved to be favorable, the press only after cooling the heating plates below 240 ° C relieve pressure. If the pressure relief immediately with the stop, can increase oxygen in the already hot plate penetrate and already during the cooling of the Heating plate increases the risk of fire.
  • the measurement of the temperature which also serves as a controlled variable for the flow is used as close as possible to the place of heat consumption. That is, at a heater plate temperature of, for example, 270 ° C (measured close to rolling surface) the flow temperature of the thermal oil at Inlet into the heating plates is 290 ° C; and at the rolling edge only 260 ° C, in the Rolling area of the rolling bars about 255 ° C and on the opposite Side of the hot plate 290 ° C present.
  • the feed speed is reduced, less heat is removed from the product and the Temperature rises immediately in the sensor area and the valve immediately closed.
  • the hole for the heating medium should be as close as possible to the Rolling surface are executed so that the rolling surface faster at a stop can be cooled and the Schuplattentemperaturregelung the more accurate Can hold setpoint.
  • Figure 1 shows a section in side view between steel strip 1 and 4 heating plate with the therein arranged ducts 5 for the tempered Fluid streams and the penetration probe 6 for direct measurement of the temperature of the Heating plates on the roll bar side.
  • a hardened Rolling plate 3 On the hot plate is still a hardened Rolling plate 3 on which roll the rolling rods 2.
  • the valve 12 controls the amount of tempered to about 320 ° C Flow 10 in the direction of the inlet heating plate 7.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Heat Treatment Of Articles (AREA)
EP05007278A 2004-04-19 2005-04-04 Procédé pour la réfrigération rapide d'une presse continue Not-in-force EP1588816B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004019429A DE102004019429A1 (de) 2004-04-19 2004-04-19 Verfahren zur Schnellkühlung der Heizplatten einer kontinuierlich arbeitenden Presse und eine kontinuierlich arbeitende Presse
DE102004019429 2004-04-19

Publications (2)

Publication Number Publication Date
EP1588816A1 true EP1588816A1 (fr) 2005-10-26
EP1588816B1 EP1588816B1 (fr) 2010-06-23

Family

ID=34934725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05007278A Not-in-force EP1588816B1 (fr) 2004-04-19 2005-04-04 Procédé pour la réfrigération rapide d'une presse continue

Country Status (4)

Country Link
EP (1) EP1588816B1 (fr)
CN (1) CN1689777B (fr)
AT (1) ATE471800T1 (fr)
DE (2) DE102004019429A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101670606B (zh) * 2008-09-08 2012-09-12 富朗投资管理集团(香港)有限公司 一种利用农作物秸秆制作板材的热压系统
DE102013104648A1 (de) 2013-05-06 2014-11-20 Dieffenbacher GmbH Maschinen- und Anlagenbau Verfahren zum Betreiben einer Presse und Presse zur Herstellung von Werkstoffplatten aus Biomasse
DE202013101969U1 (de) 2013-05-06 2014-07-09 Dieffenbacher GmbH Maschinen- und Anlagenbau Presse zur Herstellung von Werkstoffplatten aus Biomasse
CN110385887A (zh) * 2018-04-23 2019-10-29 宜兴市宜轻机械有限公司 一种新型热压机高温冷却机构
CN110216201A (zh) * 2019-07-18 2019-09-10 上海凌云汽车模具有限公司 一种适用于模内喷水的自动喷水装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556201A (en) * 1968-03-25 1971-01-19 Konus Kessel Ges Fur Warmetech Method and apparatus for heating and cooling presses and the like
DE19858152A1 (de) * 1998-12-16 2000-06-21 Dieffenbacher Gmbh Maschf Kontinuierlich arbeitende Presse und Verfahren zur Herstellung von Holzwerkstoffplatten und Kunsstoffplatten
US6328843B1 (en) * 1998-08-13 2001-12-11 Maschinenfabrik J. Dieffenbacher Gmbh & Company Method for producing boards made of wood-based material and synthetic boards in a continuously operating press
DE10124929A1 (de) * 2001-05-21 2002-12-05 Metso Paper Inc Verfahren zur kontinuierlichen Herstellung von Faserplatten

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921364A1 (de) * 1989-06-29 1991-01-03 Held Kurt Kontinuierlich arbeitende doppelbandpresse
CN2379279Y (zh) * 1999-06-22 2000-05-24 段梦麟 一种生产人造木的连续挤压机
CN2601815Y (zh) * 2003-03-24 2004-02-04 胡兴邦 油压机孔道循环式蒸汽热压板

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556201A (en) * 1968-03-25 1971-01-19 Konus Kessel Ges Fur Warmetech Method and apparatus for heating and cooling presses and the like
US6328843B1 (en) * 1998-08-13 2001-12-11 Maschinenfabrik J. Dieffenbacher Gmbh & Company Method for producing boards made of wood-based material and synthetic boards in a continuously operating press
DE19858152A1 (de) * 1998-12-16 2000-06-21 Dieffenbacher Gmbh Maschf Kontinuierlich arbeitende Presse und Verfahren zur Herstellung von Holzwerkstoffplatten und Kunsstoffplatten
DE10124929A1 (de) * 2001-05-21 2002-12-05 Metso Paper Inc Verfahren zur kontinuierlichen Herstellung von Faserplatten

Also Published As

Publication number Publication date
ATE471800T1 (de) 2010-07-15
DE102004019429A1 (de) 2005-11-03
CN1689777A (zh) 2005-11-02
EP1588816B1 (fr) 2010-06-23
CN1689777B (zh) 2010-05-26
DE502005009778D1 (de) 2010-08-05

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