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| Extraction of Bagasse Pulping Black Liquor by Using Three Stages Countercurrent Pressing System |
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| DOI：10.11980/j.issn.0254-508X.2016.10.003 |
| Key Words:alkali recovery bagasse pulp black liquor high concentration extraction mechanical press countercurrent press |
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| Abstract:In order to improve the extraction rate of black liquor of bagasse pulp, the study analyzed the problem in bagasse pulp black liquor extraction, and used mechanical pressing to realize the extraction of bagasse pulping black liquor in higher concentration. Using the self-designed three stages washing system without filters, the extracted black liquor concentration increased. The system analysis showed that, the extraction rate of the black liquor had nothing to do with the concentration of the original black liquor, which was related to the liquid content of the pulp and the addition of water. On the other hand, by designing presser and presser parameters, the experimental results showed that the output pulp consistency was 33% and the supplementary water was 3 tons per ton of pulp. 10 tons of black liquor could be extracted from 1 ton of pulp, the extraction rate was 93.65%. |
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