垂直-倾斜半环组合对撞流干燥的实验研究

为了提高对撞流干燥的干燥幅度,改善物料在半环中的粘壁和流动特性,设计、制造、安装、调试了新型垂直半环组合对撞流干燥实验台·该实验台结构新颖、紧凑,以小米为物料进行的干燥和流动特性实验表明:该干燥器不仅能够充分利用干燥介质的干燥能力和最大限度地提高物料的干燥幅度,而且还避免了半环中的粘壁和堆积问题;物料降水率主要受进气温度和载带率的影响;对撞面随着上、下进气流量的变化而上、下浮动,对撞区内物料的向下运动速度大于向上运动的速度

Experimental Investigation on Vertical-Inclined Semi-Circular Combination Impinging Stream Drying

The combined impinging stream dryer of the vertical and sloped semi circular was designed. The flow and drying characteristics were tested. The combined impinging stream drying not only can solve the problems of semi circular impinging stream drying used for drying high moisture sticky materials, but also can make full use of the drying ability of hot air to improve the drying of materials.The degree of water removal is mainly affected by entering atmosphere temperature and rate of material taken:The impingement plane goes up and down following the up and downs of the amount of the entering atmosphere;The downward speed of material in impingement zone is bigger than the upward speed.