发明名称 |
Continuously refining raw fibrous material to produce mechanical refiner pulp |
摘要 |
Raw fibrous material is preheated in a preheater in the presence of steam under a pressure greater than atmospheric pressure and then continuously introduced into a disc refiner, without prior defibration, whereby steam is generated in said disc refiner. The generated steam is continuously conducted away from said disc refiner as subsequent fibrous material is continuously being introduced into the disc refiner in order to obtain a pressure in the disc refiner which is greater than atmospheric pressure but less than the pressure in said preheater.
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申请公布号 |
US4037792(A) |
申请公布日期 |
1977.07.26 |
申请号 |
US19750609226 |
申请日期 |
1975.09.02 |
申请人 |
SCA DEVELOPMENT AKTIEBOLAG |
发明人 |
PETERSON, VIKING PER |
分类号 |
D21B1/12;D21D1/30;(IPC1-7):B02C23/26;D21B1/14 |
主分类号 |
D21B1/12 |
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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