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    • 5. 发明申请
    • FORMING SECTION WITH METAL BELT
    • 金属带形成部分
    • WO2010034346A1
    • 2010-04-01
    • PCT/EP2008/062854
    • 2008-09-25
    • METSO PAPER, INC.PIHKO, RikuPAKARINEN, Pekka
    • PIHKO, RikuPAKARINEN, Pekka
    • D21F9/00D21F3/02
    • D21F9/003D21F3/0209
    • A forming section forming a fibrous web is described, which forming section comprises a forming wire loop (1) for forming the fibrous web from a fiber containing suspension which is injected to the forming wire by a head box. A metal belt loop (2) is arranged- to press the web and the forming wire (11) between the metal belt (21) of that loop and a support surface (12), which can be a roll. Using a metal belt allows the generation of a long nip using appropriate metal belt arrangement and belt tension. The metal belt maybe arranged to contact the fibrous web, and the forming wire is arranged to contact the support surface. In other words, the web is sandwiched between the metal belt and forming wire, wherein the metal belt can be arranged to press the fibrous web from above pressing the liquid of the suspension towards the forming wire which is arranged below the web. In this way, gravity can be used to support water removal, and a more symmetric web can finally be obtained.
    • 描述形成纤维网的成形部分,其形成部分包括用于通过头箱注入到成形网中的含纤维混合物形成纤维网的成形线环(1)。 设置金属带环(2),以将卷材和成形网(11)压在该环的金属带(21)和可以是辊的支撑表面(12)之间。 使用金属带允许使用适当的金属带布置和带张力产生长压区。 金属带可以布置成接触纤维网,并且成形网布置成接触支撑表面。 换句话说,网状物被夹在金属带和成形网之间,其中金属带可以布置成从上方挤压纤维网,将悬浮液的液体压向布置在网下面的成形网。 以这种方式,重力可以用于支持除水,最后可以获得更对称的网。
    • 9. 发明授权
    • SYSTEM OF REGULATION FOR A PAPER MACHINE
    • 装置用于调整造纸机
    • EP1073789B1
    • 2004-04-28
    • EP99904892.9
    • 1999-02-17
    • Metso Paper, Inc.
    • LUONTAMA, MattiMUSTONEN, HarriPAKARINEN, Pekka
    • D21F7/06
    • D21G9/0027D21F1/02D21F1/026D21F1/028D21F7/06Y10S162/11
    • A feedback-connected on-line system of regulation of the headbox (10) of a paper or board machine. The headbox (10) comprises a flow duct for stock suspension or separate flow ducts placed one above the other, which flow duct(s) extend(s) from the inlet header (11) of the headbox (10) into its slice channel (14), the stock suspension jet (J) being discharged from the slice opening (16) of said slice channel onto the forming wire or into the forming gap formed between forming wires. The system of regulation comprises a regulator unit (30; 40, 41, 42) and a set value unit (32). To the regulator unit (30; 40, 41, 42), measurement values (MV) are passed from the headbox system. From the regulator unit (30; 40, 41, 42), control values (CV) are obtained, by whose means the actuators of the headbox system are controlled. The system of regulation includes an on-line arrangement of measurement of the dried paper web (W; Wout) or of the paper web to be dried, by means of which arrangement, in the plane of the paper web (W; Wout), the distribution (OE) of its fibres is measured. By means of the measurement signal obtained from this measurement arrangement, the actuators of the headbox (10) are controlled by means of feedback so as to achieve a distribution of fibre orientation and a corresponding MD/CD ratio of strength in accordance with the set value (SV; sva, ha, svs) in the paper web (Wout) to be produced under control of the system of regulation in accordance with the present invention.