发明名称 Headbox for a paper machine
摘要 A headbox for a paper machine includes a distributor beam part communicating with a distribution part and a turbulence part followed by a slice part. The turbulence part is constituted by a turbulence generator member in which a plurality of flow bores are formed, the outlet mouths of the flow bores opening into flow slots formed in the turbulence generator and wherein a central plane of each flow slot forms an angle with the axes of the flow bores, the magnitude of the angle being in the range of about 5 DEG to 45 DEG . The headbox may also include an equalizing chamber in which a pulp suspension is adapted to flow in an upwardly slanted flow direction and in this case the axes of the flow bores form a declining angle with the flow direction in the equalizing chamber, which declining angle is in the range of about 5 DEG to 15 DEG .
申请公布号 US4514259(A) 申请公布日期 1985.04.30
申请号 US19820432370 申请日期 1982.09.30
申请人 VALMET OY 发明人 KOSKI, ERKKI
分类号 D21F1/02;(IPC1-7):D21F1/06 主分类号 D21F1/02
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