Effect of a starch-based filter aid on the dewatering of fine clean coal

作     者：GONG Guanqun XIE Guangyuan ZHANG Yingjie WANG Ziliang WANG Jin XIE Linghui LUO Zhenfu 

作者机构：School of Chemical Engineering and Technology China University of Mining & Technology Xuzhou 221116 China School of Applied Science and Technology China University of Mining & Technology Xuzhou 221008 China 

基　　金：the financial support for this work provided by the Doctoral Fund of Ministry of Education of China (No.200802900503) the Science and Technology Foundation of China University of Mining & Technology (No.2008A027) 

出 版 物：《Mining Science and Technology》 (矿业科学技术（英文版）)

年 卷 期：2010年第20卷第4期

页      码：635-640页

摘      要：The dewatering of fine, flotation cleaned coals from Huaibei and Xuzhou (bituminous) and Yongcheng (anthracite) were studied. The supernatant and filter cake were examined to determine the rate and extent of flocculation and dewatering. A starch-based filter aid was used to increase flocculation and dewatering rates. The filtration constant, K, and compression index, s, of the Yongcheng slurry were measured under various conditions. A designed experiment was performed to determine optimum conditions for dewatering. The results showed that the filter aid enhanced flocculation and coagulation of the fine cleaned coal slurry, enhanced the structure of the filter cake and promoted dewatering of the cake. Moisture content in the cake was reduced to 17% after vacuum filtration.

主 题 词：脱水率 助滤剂 清洁煤 淀粉基 强化絮凝 过滤常数 压缩指数 设计实验 

学科分类：0808[工学-自动化类] 0709[理学-地质学] 0819[工学-海洋工程类] 081704[081704] 0809[工学-计算机类] 08[工学] 0820[工学-航空航天类] 0817[工学-轻工类] 0818[工学-交通运输类] 0708[理学-地球物理学类] 0807[工学-电子信息类] 0815[工学-矿业类] 0805[工学-能源动力学] 081701[081701] 0813[工学-化工与制药类] 0814[工学-地质类] 082002[082002] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1016/S1674-5264(09)60258-1

馆 藏 号：203619913...