Fulfill the screen test and float-and-sink analysis for high sulfur coal gangue from a Guizhou coal mine, analyzed the washability of its tail coal. Seen from the results： most of sulfur in sample is pyrite, the sulf...Fulfill the screen test and float-and-sink analysis for high sulfur coal gangue from a Guizhou coal mine, analyzed the washability of its tail coal. Seen from the results： most of sulfur in sample is pyrite, the sulfur content of different particle classification shall be reduced with the decreasing of size and specific gravity, most of sulfur distributed in the coal particles with large-size and high specific gravity. Part of sulfur may be eliminated through special gravity separation, however, most of inorganic sulfur should be removed with the combination of floatation process.展开更多
On the basis of the float-and-sink analysis and the timed-release analysis, a new theoretical floatability curve of coal has been advanced. By means of fitting to a lot of data, a model of theoretical floatability cur...On the basis of the float-and-sink analysis and the timed-release analysis, a new theoretical floatability curve of coal has been advanced. By means of fitting to a lot of data, a model of theoretical floatability curve has been set up. The characteristics of curve and how to achieve standardization were discussed.展开更多
文摘Fulfill the screen test and float-and-sink analysis for high sulfur coal gangue from a Guizhou coal mine, analyzed the washability of its tail coal. Seen from the results： most of sulfur in sample is pyrite, the sulfur content of different particle classification shall be reduced with the decreasing of size and specific gravity, most of sulfur distributed in the coal particles with large-size and high specific gravity. Part of sulfur may be eliminated through special gravity separation, however, most of inorganic sulfur should be removed with the combination of floatation process.
文摘On the basis of the float-and-sink analysis and the timed-release analysis, a new theoretical floatability curve of coal has been advanced. By means of fitting to a lot of data, a model of theoretical floatability curve has been set up. The characteristics of curve and how to achieve standardization were discussed.
