Continuous Drying of a Fine Particles-Water Slurry in a Powder-Particle Fluidized Bed
Continuous Drying of a Fine Particles-Water Slurry in a Powder-Particle Fluidized Bed
复制标题
粉粒流化床中细粒水浆的连续干燥
DOI：
10.1252/jcej.25.495
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发表时间：
1992
影响因子：
0.8
通讯作者：
Kunio Kato
中科院分区：
文献类型：
--
作者：
N. Nakagawa;Kazumichi Ohsawa;T. Takarada;Kunio Kato
粉粒流化床是为了使细颗粒流化以防止其在床内团聚而开发的一种新型流化床。在粉粒流化床中对细粒浆液进行连续干燥，并考察其干燥特性。在本研究的操作条件范围内，浆料中的水分在床中几乎完全蒸发，并且排出的细颗粒的水分含量几乎为零。出口气体的温度和相对湿度与在不知道传热和传质速率的情况下通过床层的质量和热平衡计算得出的温度和相对湿度一致。
The powder-particle fluidized bed is a new type of fluidized bed developed to fluidize fine particles to prevent their agglomeration in the bed.Continuous drying of a slurry of fine particles with water was carried out in a powder-particle fluidized bed, and its drying characteristics were examined. Moisture in the slurry evaporated almost fully in the bed, and the moisture content of the exiting fine particles was nearly zero under the range of operating conditions in this study. Temperature and relative humidity of the outlet gas agreed with those calculated by mass and heat balances across the bed without knowledge of the rates of heat and mass transfer.