碱锰电池用大功率无汞锌粉的雾化装置

摘要

设计了自由降落式喷嘴雾化装置,采用六孔啧料架,通过改进喷射孔间距、喷射角,降低雾化能耗,增加锌粉比表面积,提高碱锰电池的大功率性能.在0.8 MPa的气压下,获得粒径小于150μm的锌粉超过80％；不规则形态的锌粉比表面积达0.013 m2/g,体积平均粒径达141 μm.用该锌粉制备的LR6电池的1 500 mW、650 mW脉冲放电次数达130次.%A free fall nozzle atomization was designed. The device had a six hole ejection mechanism, by improving the ejection hole spacing and the ejection angle, the device decreased the atomization energy consumption,increased the specific surface area of the obtained zinc powder,which led to the improving of high power performance of the alkaline Zn/MnO2 battery.Over 80% of the zinc powder obtained at the pressure of 0.8 Mpa had a particle size less than 150 μm.The specific surface area of the zinc powder of irregular morphology reached to 0.013 m /g with an volume average particle size distribution of 141 μm.When pulse discharged with 1 500 mW,650 mW,the discharge times of LR6 battery produced by this zinc powder reached to 130.