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公开(公告)号：EP1007305A1
公开(公告)日：2000-06-14
申请号：EP98929995.3
申请日：1998-06-16
IPC分类号： B27N3/14
CPC分类号： B27N3/14
摘要： A method and a device for continuous forming of a mat of particle lignocellulosic material by means of a batching unit (12) with a distribution chamber (15) in connection with the manufacture of board. The material is deposited on a continuous forming web (16), and the width of the mat is controlled by means of laterally movable partition walls (30) in the distribution chamber (15). The main part of the material is deposited on the forming web (16) between the partition walls (30), and the partial amount of the particle material dropping outside the partition walls (30) is diverted by means (32) and discharged separately in the distribution chamber (15) and re-used in the mat forming, in that it is directly placed as a surface layer of the mat by distribution means (35).
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公开(公告)号：EP0741635B1
公开(公告)日：1999-08-04
申请号：EP95908400.5
申请日：1995-01-19
IPC分类号： B27N3/00
摘要： A method of continuous manufacture of board of lignocellulosic fiber material where the material is disintegrated to particles and/or fibers, dried, glued and formed to a mat and pressed to a finished board. In a first step the formed mat is heated through by steam and compressed to an at least partially hardened board with substantially uniform density. In a second step the surface layers of the board are compressed to higher density and hardened in a calibration zone to a finished board.
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公开(公告)号：EP0726879A1
公开(公告)日：1996-08-21
申请号：EP95900961.0
申请日：1994-10-20
CPC分类号： D21F1/66 , B01D5/0054 , C02F1/10
摘要： A method of purifying and recovering waste water from a fiberboard manufacturing process. The waste water is supplied to an evaporator (11), in which steam from a steam generator (12) is used as heating medium for evaporating the waste water and concentrating impurities. These impurities are thereafter separated mechanically from the evaporator (11). The steam generated in the evaporator (11) is used in a steam converter (14) for restoring the heating medium used in the evaporator (11) from condensate to steam phase. The condensate formed in the steam converter (14) is purified from solved substances in a purifying unit (15). The condensate thus purified is used as feed water in the steam generator (12), from which steam is supplied to the evaporator (11).
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公开(公告)号：EP0842022A1
公开(公告)日：1998-05-20
申请号：EP96925239.0
申请日：1996-07-25
IPC分类号： B27N3
摘要： A method of the production of boards of a lignocellulosic fibrous material wherein a material is broken up into particles and/or fibers that are dried, glued and formed to a mat and pressed to a finished board so that steam is introduced to the mat. According to the present invention, the steam is introduced in a limited amount in a first injection step. This amount is adjusted so that the steam only penetrates into, heats and cures the surface layer of the mat. Thus, a board having a surface layer with a higher density than a middle layer is obtained so that the subsequent calibration compression provides a greater thickness that permits the middle layer to expand while the density of the surface layers is maintained.
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公开(公告)号：EP0819043A1
公开(公告)日：1998-01-21
申请号：EP96909415.0
申请日：1996-03-11
IPC分类号： B27N3
CPC分类号： B27N3/24
摘要： A method for the continuous manufacture of board from lignocellulosic material, where the material is disintegrated to particles and/or fibers, dried, glue-coated and formed to a mat and pressed to a finished board. The formed mat is heated with steam and thereafter compressed to near final thickness, whereafter it is pressed to a manageable board in a calibration section.
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公开(公告)号：EP0741635A1
公开(公告)日：1996-11-13
申请号：EP95908400.0
申请日：1995-01-19
IPC分类号： B27N3
摘要： A method of continuous manufacture of board of lignocellulosic fiber material where the material is disintegrated to particles and/or fibers, dried, glued and formed to a mat and pressed to a finished board. In a first step the formed mat is heated through by steam and compressed to an at least partially hardened board with substantially uniform density. In a second step the surface layers of the board are compressed to higher density and hardened in a calibration zone to a finished board.
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公开(公告)号：EP0843615A1
公开(公告)日：1998-05-27
申请号：EP96925238.0
申请日：1996-07-25
IPC分类号： B27N3
摘要： A method for the continuous production of boards of a ligno-cellulosic fiber material wherein the material is broken up into particles and/or fibers. These are dried, glued and formed to a mat. The mat is compressed to a finished board while steam is introduced. According to the present invention, the compression is performed as a single step and the steam is introduced through one or many compression rollers. By injecting steam in this way a sufficient cure is obtained to withstand the spring back characteristics inherent of the fibers so that it is possible to obtain a finished thickness of the board with one single compression step.
摘要翻译： 一种连续生产木质纤维素纤维材料板的方法，其中材料被破碎成颗粒和/或纤维。 这些被干燥，胶合并形成垫子。 在引入蒸汽时，垫子被压缩成完成的板子。 根据本发明，压缩作为单个步骤执行，并且蒸汽通过一个或多个压缩辊引入。 通过以这种方式注入蒸汽，获得足够的固化以承受纤维固有的回弹特性，从而可以通过单个压缩步骤获得板的最终厚度。
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公开(公告)号：EP0842021A1
公开(公告)日：1998-05-20
申请号：EP96925237.0
申请日：1996-07-25
IPC分类号： B27N3
摘要： A method for the continuous production of boards having a lignocellulosic fiber material wherein the material is broken up into particles and/or fibers that are dried, glued and formed and pressed to a finished board. The mat is pre-compressed while steam is introduced in such a limited amount during the pre-compression that the temperature of the fibrous mat increases to a value within an interval of 60-95 °Celsius. In this way, the spring back characteristics of the fiber mat is reduced so that its resistance to compression is reduced and the thickness can be reduced more in the pre-compression while the temperature is not so high to initiate a curing process.
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