高含水率中药渣的带式压滤机压滤脱水试验

doi:10.16085/j.issn.1000-6613.2017-2039

化工进展 ›› 2018, Vol. 37 ›› Issue (07): 2867-2872.DOI: 10.16085/j.issn.1000-6613.2017-2039

• 应用技术 • 上一篇

高含水率中药渣的带式压滤机压滤脱水试验

刘莎莎¹, 董玉平², 于杰¹, 常加富¹, 杜巍涛¹, 张屹¹

1 山东百川同创能源有限公司, 山东济南 250101;
2 山东大学高效洁净机械制造教育部重点实验室, 山东济南 250061

收稿日期:2017-09-30 修回日期:2017-11-13 出版日期:2018-07-05 发布日期:2018-07-05
通讯作者: 董玉平,教授,博士生导师,主要研究方向为生物质能高效清洁转换技术。
作者简介:刘莎莎(1987-),女,硕士研究生,工程师。E-mail:lsslsjl@126.com
基金资助:
国家科技支撑计划项目（2014BAC26B01）及公益性行业（农业）科研专项（201503135-07）项目。

Dehydration test of high water content Chinese medicine dregsusing belt filter press

LIU Shasha¹, DONG Yuping², YU Jie¹, CHANG Jiafu¹, DU Weitao¹, ZHANG Yi¹

1 Shandong Baichuan Tongchuang Energy Company, Ltd., Jinan 250101, Shandong, China;
2 School of Mechanical Engineering & Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, Shandong University, Jinan 250061, Shandong, China

Received:2017-09-30 Revised:2017-11-13 Online:2018-07-05 Published:2018-07-05

摘要/Abstract

摘要： 分析中药渣中的水分，阐述中药渣受挤压作用时的脱水机理，结合中药渣的特性和带式压滤机的脱水工艺，对压滤机的布料器进行改造，增加两级分料螺旋，改善压滤效果，使其适用于中药渣脱水试验，增加物料处理量，减少溢料现象，降低污水含固率，减少运行人员劳动强度。采用控制变量法，试验研究压滤机的不同脱水段、压力、带速、中药渣初始含水率等4个因素对脱水效果的影响，结果表明：物料初始含水率越大，不同脱水段的脱水率越大，滤饼的含水率越大；Ⅰ级脱水辊对物料脱水效果影响最大，楔形预压段对物料脱水效果影响最小；中药渣的初始含水率不宜超过80.16%；Ⅰ级脱水辊压力选择0.2～0.6MPa较合适；带速在0.3～0.5m/s范围内时，滤饼的含水率在65%～ 66%之间，脱水效果较好。

关键词: 中药渣, 废物处理, 压滤脱水, 过滤, 改进

Abstract: The water content in Chinese medicine residue was analyzed, and the mechanism of the dehydration of the Chinese medicine residue was analyzed. The characteristics of the Chinese medicine residue and the dehydration process of the belt filter press were used to transform the distributing device of the filter press. Two-stage feed screws were increased, improving the filter effect, making it suitable for Chinese medicine residue dehydration test. The amount of material handling was increased, the phenomenon of flash material was reduced, the solid content of sewage was reduced, the labor intensity of operating personnel was reduced. The influence of the different dehydration sections, pressure, belt speed of the filter press and the initial moisture content on the dewatering effect was studied by using the control variable method. The test results showed that the greater the initial water content of the material, the greater the dehydration rate of the different dehydration section, the greater the water content of the filter cake. The effect of the first grade dewatering roller on the material dehydration is the biggest, and the wedge dewatering section has the least effect on the material dehydration effect. The effect of the grade Ⅰ dewatering roller on the material dehydration is the biggest, and the wedge preloading section has the least effect on the material dehydration effect. The initial moisture content of Chinese medicine residue is not easy to exceed 80.16%. The gradeⅠ dewatering roller pressure selection between 0.2MPa and 0.6MPa is more appropriate. When the belt velocity is in the range of 0.3-0.5m/s, the moisture content of the filter cake is between 65% and 66%, and the dehydration effect is better.

Key words: Chinese medicine residue, waste treatment, pressure filtration dehydration, filtration, improve

中图分类号:

刘莎莎, 董玉平, 于杰, 常加富, 杜巍涛, 张屹. 高含水率中药渣的带式压滤机压滤脱水试验[J]. 化工进展, 2018, 37(07): 2867-2872.

LIU Shasha, DONG Yuping, YU Jie, CHANG Jiafu, DU Weitao, ZHANG Yi. Dehydration test of high water content Chinese medicine dregsusing belt filter press[J]. Chemical Industry and Engineering Progress, 2018, 37(07): 2867-2872.

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高含水率中药渣的带式压滤机压滤脱水试验

Dehydration test of high water content Chinese medicine dregsusing belt filter press

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