摘要
通过具有微波吸收功率测定功能的微波干燥试验装置,进行了钼精粉的干燥工艺特性试验研究。研究结果表明:应用矩形脉冲式微波加热方法干燥钼精粉,且采用依靠物料自身温度高于环境温度的条件所形成的自然对流通风的排湿方式,亦即接近于无风状态的微风干燥模式是可行的。在本研究的工艺条件下,单位能耗脱水量可达1.0 kg/(kW·h),与传统的热风干燥工艺相比,单位能耗的脱水量提高了近1倍,具有干燥速度快、无飞尘损失及节能等优势。
In order to determine the characteristics of molybdenum powder during microwave drying,a microwave drying test device with absorbed microwave power measuring functions was used to carry out the microwave drying of molybdenum powder. The results show that the rectangular pulse microwave heating method is feasible to dry the molybdenum powder with natural convection ventilation caused by the material temperature that is higher than the environment. That is also to say that the breeze drying mode is also feasible on the condition of nearly no wind for microwave drying of molybdenum powder. The dehydration efficiency for unit energy consumption on the conditions of this paper is up to 1. 0 kg /( kW·h). That is almost double of that of traditional hot air drying process and has the characteristics of short drying time,dust free and lower power consumption during microwave drying process.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2014年第6期5-8,13,共5页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(11004049)
关键词
钼精粉
微波干燥
矩形脉冲加热
微风干燥
molybdenum concentrated powder
microwave drying
rectangular pulse heating
breeze drying
