双圆盘气流粉碎机在煤超微粉碎的应用研究

Application Research for Double Disc Airflow Jet Mill on Coal Altra-grinding

在研究煤超微粉碎过程中,设计了一种用于煤超微粉碎的双圆盘气流粉碎机,与传统的气流粉碎机相比生产效率更高。设计的双圆盘气流粉碎机的特征在于有两只相交的圆盘状粉碎室,粉碎室周围有若干只能产生两股旋向相反的超高速旋流的射流喷嘴。与传统的双圆盘粉碎机不同的是加料器的位置,将加料器置于粉碎腔的中心,使煤颗粒在圆盘相交部位受到强烈的对撞和摩擦而被快速粉碎。通过合理的控制煤粉气流的运动方向,充分利用煤粉颗粒在超高速运动时具有的巨大动能,大大提高了运动中煤粉颗粒的撞击力度,使分级的分级粒度更小,能显著提高粉碎机的生产效率,降低了生产能耗。

Double disc airflow jet mill were widely applied to coal altra-grinding during study on coal ahra-grinding, whose production efficiency was higher compared to traditional air mill. The principle design is used for medium compressed gases, materials can be processed ultra-fine particle size to only a few microns, its characteristics lies in the intersection of the two disc-shaped crush room, crush room only around a number of Produced two spin to the same high-speed swirl of the jet nozzle. Disc material particles in the intersection by the strong position of the collision and friction were quickly crushed. Reasonable control of the flow direction of movement of coal particles, made full use of coal particles in super-high-speed movement of the enormous energy, thereby greatly increasing the movement of the particles impacting, and classification of the coal particle size is smaller, so that the device significantly improved the efficiency of production, and production energy consumption was decreased significantly.