本份设计附任务书,范文,和 设计图,范文正文字数:16074,页数:28 范文编号:JX062 摘要:振动流化床干燥机工作时,由振动电机提供的激振力,使物料在空气分布板上跳跃前进,同时与分布板下方送入热风接触,进行热、质传递。下箱体为床层提供了一个稳定的具有一定压力的风室。调节引风机,使上箱体中床层物料上部保持微负压,维持良好的干燥环境并防止粉尘外泄。空气分布板支撑物料并使热风分布均匀。振动流化床的设计方法还不完善,不能做到严格的按特定物料的传热传质模式去设计干燥机,工程经验在设计中仍占有重要地位。通常,利用常规热平衡计算结合必要的试验,确定床层面积;利用振动的理论进行振动系统设计;振动流化床采用余热回收干燥,故设计热管式空气预热器,将干净的空气加热至100摄氏度来干燥物料。此措施很好的节省了能源消耗。 关键词:振动流化床,热管换热器,热管,流化床
Abstract : vibrating fluidized bed dryer work, from the vibration of the electrical excitation and making materials in the air distribution plate leap forward the same time, and distribution of the bottom plate into contact with hot air, heat and mass transfer. Box under the bed to provide a stable with some pressure on the Wind Room. Fan regulation, which box on the bed material to maintain the upper-vacuum, maintain good dry environment and prevent dust leakage. Air distribution plate support materials make hot air evenly distributed. Vibration fluidized bed design method is not perfect, could not be done strictly in accordance with the specific materials heat and mass transfer model to design dryer, engineering experience in the design still occupy important positions. Usually, the use of conventional heat balance calculations with the necessary tests to determine bed area; use vibration theory vibration system design; Vibration waste heat recovery using fluidized bed drying, Therefore, the design of heat pipe air preheater, clean air heated to 100 degrees Celsius to dry materials. This measure is well for saving energy consumption. Keywords : vibration fluidized bed, heat pipe heat exchanger, heat pipe, fluidized bed
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