发明名称 |
Method and device for feeding chemicals into a fibre suspension |
摘要 |
In the short circulation of a paper machine, a chemicals flow (F1) is fed into a fibre suspension flow in connection with a pipe expansion comprising a first pipe (1) and a second pipe (2) having a larger diameter than the first pipe, which pipes are connected to each other by means of an expansion step (3) perpendicular to the direction of flow. The chemicals flow (F1) can be passed so as to be mixed with the fibre suspension flow either in the second pipe (2) in an ideal mixing zone situated after the expansion step (3) or in the first pipe (1) so close to the expansion step (3) that the chemicals which are added have no time to react with the fibre suspension before the flow enters the expansion step (3).
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申请公布号 |
US6841040(B2) |
申请公布日期 |
2005.01.11 |
申请号 |
US20020314658 |
申请日期 |
2002.12.09 |
申请人 |
METSO PAPER, INC. |
发明人 |
LEPOMAEKI HANNU;SAMS JUHANI |
分类号 |
D21F1/00;D21F1/66;(IPC1-7):D21F1/00 |
主分类号 |
D21F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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