发明名称 |
METHOD AND APPARATUS FOR PREPARING PAPER PULP FROM USED PAPER |
摘要 |
The invention concerns a method and an equipment for combining in one single apparatus, the functions for filtering, decontaminating, and thickening paper pulp from used paper, while providing the complementary function of clarifying the filtrates. The apparatus (1) rotates at high speed. The paper pulp is introduced through the centre of the apparatus (2) and driven at its angular speed. The pulp is then brought along a grate (6) with small size holes for separating the fibres from the greater part of the water. The thickened pulp is evacuated through extraction nozzles (8). The water is clarified in the clarification zone (12) and recycled or eliminated depending on uses. More complete embodiments of the apparatus include the functions of fractionating, de-inking and purifying the pulp with slots or holes.
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申请公布号 |
WO0075422(A1) |
申请公布日期 |
2000.12.14 |
申请号 |
WO2000PT00006 |
申请日期 |
2000.06.08 |
申请人 |
FINIDRO, FINANCIAMENTOS ENERGETICOS, LDA;HAFFNER, ERIC |
发明人 |
HAFFNER, ERIC |
分类号 |
B04B3/00;B04B7/14;B04B7/16;D21C5/02;D21D1/40;D21D5/00;D21D5/02;D21D5/20;D21F1/66;(IPC1-7):D21D5/20 |
主分类号 |
B04B3/00 |
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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