发明名称 METHOD AND SYSTEM FOR CONTROLLING HEADBOX IN A PAPER/BOARD MACHINE
摘要 The invention relates to a method and a system for controlling a headbox in a paper/board machine. The headbox (10) comprises a stock inlet header (J), a tube bank (11), a turbulence generator (13) and a slice opening (14) which is provided with a profile bar. The headbox (10) is provided with cross direction measuring sensors (D1, D2; Dmn), by means of which the flow rate profile of the headbox (10) is determined, and the profile bar of the slice opening (14) of the headbox (10) is adjusted in the cross direction on the basis of the thus determined flow rate profile. According to the system of the invention, the headbox (10) is provided with measuring sensors (D1, D2; Dmn) for determining the cross direction flow rate profile of the headbox (10) and with means for adjusting the profile bar on the basis of the flow rate profile.
申请公布号 WO0149929(A1) 申请公布日期 2001.07.12
申请号 WO2000FI01164 申请日期 2000.12.29
申请人 METSO PAPER, INC.;HAEMAELAEINEN, JARI, P.;LEPOMAEKI, HANNU;LUMIALA, JUHANA;SIRVIOE, PASI 发明人 HAEMAELAEINEN, JARI, P.;LEPOMAEKI, HANNU;LUMIALA, JUHANA;SIRVIOE, PASI
分类号 D21F1/02;D21F1/06;(IPC1-7):D21F1/02 主分类号 D21F1/02
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