Verfahren zur kontinuierlichen Herstellung von Holzwerkstoffplatten

    公开(公告)号:EP1323509A1

    公开(公告)日:2003-07-02

    申请号:EP02028550.8

    申请日:2002-12-20

    IPC分类号: B27N3/18 B27N3/24 B27N1/00

    摘要: Verfahren zur kontinuierlichen Herstellung von Holzwerkstoffplatten, wie Span- und Faserplatten, insbesondere Faserplatten aus Holz und anderen lignozellulosehaltigen Materialien nach dem Trockenverfahren, bei dem aus einer Streustation auf ein sich kontinuierlich bewegendes Formband eine mit Bindemittel versetzte Pressgutmatte gebildet wird, die nach Einführung zwischen die um einen oberen und unteren Rahmenteil umlaufend geführten Stahlbänder einer kontinuierlich arbeitenden Presse unter Anwendung von Druck und Wärme zu einem Plattenstrang oder einer endlosen Holzwerkstoffplatte ausgehärtet wird.

    摘要翻译: 木片或木纤维板的连续生产包括将粘合剂应用于煮熟的木纤维,并在输送带上压制散布和湿润的纤维毡。 木屑在NOTLESS 12bar沸腾,最好是NOTLESS 16bar,用于NOTLESS 3min。 然后将≤5%的酚醛粘合剂施加到吹塑管和/或混合器中的碎屑上,并将碎片分散(2)到输送带(7)上以形成垫(8)。 在进入连续工作的加热压机之前,水分含量≤15%的垫在上侧被喷涂(3),上面是5-80g / sqm的水,同时在下面被蒸(10)。 压力机(6)上的垫子的初始压力为2.5-5.5m / sqmm,使得垫子被压缩以形成两面具有致密面的面板(11)。 独立权利要求涉及一种工艺设备,其包括木片式锅炉,具有吹塑管和/或混合器的粘合剂涂布器,喷水单元(1),散热机(2),以形成垫 输送带(7),用于润湿垫的上侧的喷水单元(3),预压缩器和预热器(4),具有或不具有过滤带的蒸笼(5),蒸笼(10)和循环过滤器 垫子下方的带状物(9)和连续工作的压榨机(6)。

    A METHOD OF CONTINUOUS PRODUCTION OF LIGNOCELLULOSIC BOARDS
    142.
    发明授权
    A METHOD OF CONTINUOUS PRODUCTION OF LIGNOCELLULOSIC BOARDS 失效
    METHOD FOR木基面板的连续生产

    公开(公告)号:EP0842021B1

    公开(公告)日:2003-04-16

    申请号:EP96925237.8

    申请日:1996-07-25

    IPC分类号: B27N3/18

    CPC分类号: B27N3/24 B27N3/08

    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.

    A METHOD OF PRE-PRESSING FIBRE MATERIAL IN THE MANUFACTURE OF BOARD PRODUCTS
    143.
    发明授权
    A METHOD OF PRE-PRESSING FIBRE MATERIAL IN THE MANUFACTURE OF BOARD PRODUCTS 无效
    方法预压纤维材料IN板状体的制造

    公开(公告)号:EP0885099B1

    公开(公告)日:2002-06-12

    申请号:EP97907521.5

    申请日:1997-03-06

    IPC分类号: B27N3/18 B27N3/24

    CPC分类号: B27N3/24 B27N3/086 B27N3/10

    摘要: In a method of pre-pressing a formed web of finely-divided lignocellulosic fibre material prior to pressing the web to a finished state in the continuous manufacture of board material, the fibre material is compacted and pressed successively in an entry section (7) of a pre-press (6) subsequent to being formed into a web (11) and subsequent to a first compression and expansion. The web is compressed in this latter pressing process to a density close to the density of the web after the first compression, whereafter the web is allowed to expand to a controlled limited extent in a pre-press expansion section (9), and thereafter transferred to the finishing press. Steam (A, B) is injected into the web (9) when the web is located in the pre-press (6).

    Verfahren und Vorrichtung zum Trocknen und Verpressen flächiger Werkstoffe
    144.
    发明公开
    Verfahren und Vorrichtung zum Trocknen und Verpressen flächiger Werkstoffe 审中-公开
    用于干燥和按压表面的材料的方法和装置

    公开(公告)号:EP1205288A2

    公开(公告)日:2002-05-15

    申请号:EP01204283.4

    申请日:2001-11-09

    申请人: Leimegger, Karl

    发明人: Leimegger, Karl

    IPC分类号: B27N3/18

    CPC分类号: B27N3/18

    摘要: Verfahren und Vorrichtung zum kontinuierlichen Trocknen eines flächigen hygroskopischen Werkstoffes (14) wie Holzfurniere und dergleichen, sowie zu dessen kontinuierlicher Verpressung zu Schichtstoff-Werkstoffen wie Furnierplatten, Sperrholzplatten und dergleichen.
    Die erfindungsgemäße Vorrichtung sieht die Wärmeübergabe von den Heizkörpern auf den Werkstoff reibungsfrei über einen in der Höhe regelbaren Luftspalt (21,22) vor. Hierdurch wird die erforderliche Erwärmung des Werkstoffs sehr trägheitsarm regelbar.
    Die Feuchtigkeit des Werkstoffs wird vor Eintritt in die Vorrichtung nach Bedarf innerhalb dieser und an deren Ende mehrfach gemessen und die Wärmeübergabe auf den Werkstoff bedarfsorientiert laufend geregelt.
    Hierdurch ist es möglich, den Werkstoff auf jeden gewünschten Feuchtigkeits-Grad zwischen nahe 0% und 30 bis 35% zu trockenen, wodurch Energie eingespart wird, und bei deren Verpressung zu Schichtstoff-Werkstoffen wasserarme Bindemittel eingesetzt werden können.

    摘要翻译: 用于平面吸湿材料(14),如木单板的连续干燥,和类似物,以及其连续按压到层压材料,如胶合板,胶合板和类似物的方法和设备。 本发明的装置提供了用于从加热机构在前面的空气间隙(21,22)的热传递给物料无摩擦通过可变高度。 以这种方式,所需的材料的加热是非常低的惯性变量。 该材料的水份进入所需范围内这一点,并在端部数次并控制热传递到材料需求驱动的基础设备之前测定的。 这使得有可能将材料干燥到接近0%和30%至35%之间的任意所希望的水分含量,从而节省了能量,并将该混合物压缩成低水含量的粘合剂的层压体材料都可以使用。

    DEVICE FOR LEVELLING A PARTICULATE MATERIAL WEB
    147.
    发明授权
    DEVICE FOR LEVELLING A PARTICULATE MATERIAL WEB 失效
    DEVICE练级颗粒材料腹板

    公开(公告)号:EP0794854B1

    公开(公告)日:2000-02-23

    申请号:EP95939454.5

    申请日:1995-11-24

    IPC分类号: B27N3/18

    CPC分类号: B27N3/18 B27N3/14

    摘要: A device for levelling a particulate material web (3), such as a wood-fibre mat laid out on a wire (2) and intended for the production of wood-fibre boards, the material web being moved in relation to the device, comprises a rotary shaft (4) and a plurality of elliptic discs (6) mounted thereon. The shaft (4) is adapted to be arranged transversely of the direction of movement of the material web (3) and extends through the centres of the discs (6). The discs (6) are mounted at an axial distance from one another so as to rotate with the shaft (4). About their minor axes, the discs (6) are so inclined in relation to the shaft (4) as to have a circular axial projection.

    Process and apparatus for producing continuous particulate products
    150.
    发明公开
    Process and apparatus for producing continuous particulate products 失效
    生产连续粒状产品的方法和装置

    公开(公告)号:EP0383572A3

    公开(公告)日:1992-01-22

    申请号:EP90301566.7

    申请日:1990-02-14

    申请人: CSR LIMITED

    发明人: Tisch, Thomas

    IPC分类号: B27N3/24 B27N3/18

    摘要: An apparatus (1) for the use in the continuous production of particulate sheets (2) formed by a matrix of particulate material which forms a furnish or mat, the apparatus of the type comprising a superstructure having a supporting platform or pedestal,
    a lower girder (21) supported by said platform or pedestal and an overlying aligned upper girder (22) such that at least one surface of each girder opposes at least one surface of the other girder;
    means linking the two girders and enabling the girders to be separated or drawn together to release or sandwich particulate material conveyed therebetween, thereby forming a press, means on each of the girders to enable engagement therewith of rollers about which travel at least one continuous belt which also travel/s along said surfaces,
    means on said apparatus for measuring the sandwiching pressure exerted on said particulate sheets during travel of sheets through the apparatus;
    characterised in that the apparatus also comprises a source of gas or gases and/or steam for controlled injection, heating and curing of the particulate furnish over a preselected area of the furnish or mat; and
    vacuum forming means to actively remove said steam and/or gas/es after heating and curing.