发明名称 |
SETT OCH ANORDNING VID TILLVERKNING AV FIBERMASSA AV LIGNOCELLULOSAHALTIGT MATERIAL |
摘要 |
Method and apparatus for producing fiber pulp of improved paper-forming characteristics from ligno-cellulose-containing material such as wood chips and the like. The pulp material is subjected to a defibrating process in at least two steps. In the first step, the pulp material is disintegrated in a defibrator to form a flocculent mass of initially separated and freed fibers. This flocculent mass is then passed through a screw compacting device in which it is subjected to compression of a magnitude of 1 to 5 times the volume of the initially separated fibers. The compressed and highly concentrated mass of initially separated fibers is then passed into a refiner wherein the fibers are finally separated and fibrillated to form the final pulp.The refining is performed at a dry content of about 25-30%. |
申请公布号 |
SE7805133(L) |
申请公布日期 |
1979.11.04 |
申请号 |
SE19780005133 |
申请日期 |
1978.05.03 |
申请人 |
DEFIBRATOR AB |
发明人 |
RANZEN C-O B;DANIELSSON K O |
分类号 |
D21B1/14;D21B1/12;D21B1/30;(IPC1-7):D21B1/34 |
主分类号 |
D21B1/14 |
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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