【正】 1995年7月26日,北京矿治研究总院举办了选矿产品脱水技术讲座,由英国联合胶体公司矿物加工部Lan Barker先生作“絮凝剂及特殊化学助剂在选煤、选矿中的应用”技术报告。 Lan Barker先生介绍了其公司的主要产品:具有各低、中、高...【正】 1995年7月26日,北京矿治研究总院举办了选矿产品脱水技术讲座,由英国联合胶体公司矿物加工部Lan Barker先生作“絮凝剂及特殊化学助剂在选煤、选矿中的应用”技术报告。 Lan Barker先生介绍了其公司的主要产品:具有各低、中、高分子量的阴离子、阳离子、非离子、有机絮凝剂及滤饼脱水助剂,形态有液态、粉末状和微珠状等。展开更多
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 flocculat...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.展开更多
文摘【正】 1995年7月26日,北京矿治研究总院举办了选矿产品脱水技术讲座,由英国联合胶体公司矿物加工部Lan Barker先生作“絮凝剂及特殊化学助剂在选煤、选矿中的应用”技术报告。 Lan Barker先生介绍了其公司的主要产品:具有各低、中、高分子量的阴离子、阳离子、非离子、有机絮凝剂及滤饼脱水助剂,形态有液态、粉末状和微珠状等。
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)
文摘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.
