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煤炭干法筛分理论与设备的进展

期刊名称：煤，2008.2,Vol.17,No.2,P15-18。
时间：0
分类：TQ051.13[化学工程] TB472[一般工业技术—工业设计]
作者机构：[1]School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, China, [2]Tangshan Shenzhou Manufacturing Co., Ltd., Tangshan 063001, China, [3]State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
相关基金：Projects（50921002, 50774084） supported by the National Natural Science Foundation of China; Project（2007AA05Z318） supported by the National High-tech Research and Development Program of China; Project（BK2010002） supported by the Natural Science Foundation of Jiangsu Province of China; Project（20100480473） supported by the China Postdoctoral Science Foundation
相关项目：双自由度大型振动筛的筛分理论和可靠性研究

关键词：模块化技术, 气固流化床, 干法选煤, 选矿工艺, 分离器设计, 基础, 磁铁矿粉, 分离性能, dry coal beneficiation, modularization, gas-solid fluidized bed, wide-size-range medium-solids

中文摘要：

4060 t/h 与一个新奇方法模块化干燥的煤 beneficiation 过程控制床在一个煤气固体的使流体化的床隔板附近被设计。而且， wide-size-range 磁铁矿的中等固体的在于的水动力学搽粉(0.30.06 公里) 并且 < 1 公里罚款煤数字地被学习。模拟结果表演 wide-size-range 的使液化表演中等固体的床好。模块化的系统的分离表演然后用混合物详细被调查 < 0.3 公里磁铁矿粉末(0.30.06 个公里粒子的集体部分是 91.38 %) 并且 < 1 公里罚款煤同样稳固的媒介。试验性的结果证明在 1.33 g/cm3 或 1.61 g/cm3 的分离密度， 506 公里煤能分别地用可能的错误， E， 0.05 g/cm3 的价值和 0.06 g/cm3 有效地被分开。这种技术为节省水资源并且为煤的干净利用是有益的。

英文摘要：

A 40-60 t/h modularized dry coal beneficiation process with a novel method to control the bed was designed around a gas-solid fluidized bed separator. Furthermore, the hydrodynamics of medium-solids consisting of wide-size-range magnetite powder （0.3-0.06 ram） and 〈1 mm fine coal were numerically studied. The simulation results show that the fluidization performance of the wide-size-range medium-solid bed is good. The separation performance of the modularized system was then investigated in detail using a mixture of 〈0.3 mm magnetite powder （mass fraction of 0.3-0.06 mm particles is 91.38 %） and 〈1 mm fine coal as solid media. The experimental results show that at separation densities of 1.33 g/cm^3 or 1.61 g/cm^3, 50-6 mm coal can be separated effectively with probable error, E, values of 0.05 g/cm^3 and 0.06 g/cm^3, respectively. This technique is beneficial for saving water resources and for the clean utilization of coal.

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