【摘要】 喷雾干燥法生产保护渣的实际生产试验表明进风温度是影响水分含量的重要因素。基于此,计算了保护渣料浆雾化后的液滴在干燥室中的停留时间和干燥所需的时间,并比较不同进风温度下与不同直径的液滴间的关系。结果表明,进风温度越高,颗粒保护渣中水分含量越低,进风温度大干500℃后,水分含量变化平缓;液滴直径越小,水分含量越低。更多还原

【Abstract】 The experimental production of mould powder with the spray drying shows that the inlet air temperature has an important effect on moisture content in mould powder. Based on that, residence times and dried times of various sprayed droplets from mould powder slurry are calculated and compared in various inlet - air temperature. It is shows that moisture content decreases with the increase of the inlet - air temperature, and decreases with the decrease of diameter of the droplet.更多还原