潮湿煤炭水分对气流分级效果的影响 '

利用自行设计制备的新型潮湿煤炭分级设备,进行了潮湿煤炭外在水分对气流分级效率的影响研究,在外在水分为6%时可以获得总分级效率82．92%、分级精度0．61,在外在水分为10%仍然可以获得总分级效率77．02%、分级精度0．57。在外在水分很高的情况下采用本设备仍然可以获得理想的分级效果。 A new apparatus for wet coal classification were designed,some experiments have been done to explore the efficiency on pneumatic classification of the wet coal's moisture,In the condition of 6%,the classification effi- ciency achieved 82.92% with the classification precision 0.61,when the surface moisture is 10%,the efficiency achieved 77.02% with the precision 0.57.An ideal efficiency can be achieved by using this apparatus when the surface moisture is very high