氢氧化铝薄层干燥的节能方法探讨

Energy Saving in a Thin-layer Drying Tunnel of Aluminum Hydroxide

氢氧化铝的洞道式薄层干燥在生产中有重要应用 ,但要消耗大量的能量。对氢氧化铝的干燥的基础特性进行了研究 ,并着重探讨了变温干燥的节能方法。试验结果表明 :氢氧化铝的洞道式薄层干燥主要由水分内部迁移控制 ,强化其干燥速率应着重从改善物料状况着手 ;并采用冷热风交替的干燥方法将取得较好的节能效果。这些工作对改进生产中的氢氧化铝的干燥方法具有一定的指导意义。

Aluminum hydroxide has been used in the form of thin-layer inside a dryer tunnel and has been applied in some drying processes. How ever, this method consumes a lot of energy. Energy saving method by using various temperatures alternatively has been explored. The experimental results show that transfer of interior moisture mainly controls the drying process. To strengthen this drying process by improving the material status we may obtain a better effect of energy savings, and we should also use cold and hot wind alternatively.