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High gradient magnetic beneficiation of dry pulverized coal via upwardly directed recirculating fluidization
High gradient magnetic beneficiation of dry pulverized coal via upwardly directed recirculating fluidization
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机译:干粉煤的高梯度磁选通过向上定向的循环流化作用
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摘要
This invention relates to an improved device and method for the high gradient magnetic beneficiation of dry pulverized coal, for the purpose of removing sulfur and ash from the coal whereby the product is a dry environmentally acceptable, low-sulfur fuel. The process involves upwardly directed recirculating air fluidization of selectively sized powdered coal in a separator having sections of increasing diameters in the direction of air flow, with magnetic field and flow rates chosen for optimum separations depending upon particulate size.
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