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在一内径 92mm高 1 0 0 0mm的不锈钢充气喷动床反应器内 ,采用碳酸钙粉末物料为微细粒子 ,由间歇进样器填加湿的微细粒子 ,以空气为充气和喷动气体对微细粒子进行淘洗 .综合考察床层温度、惰性粒子床层的高度、粒径、喷动气速、充气速度、湿含量以及进样量等对充气喷动床内微细粒子的析出率的影响 .结果表明 :碳酸钙粉末物料的析出率随喷动气速、床层温度、床层的高度、充气速度的增加而增加 ;随着湿含量、进样量、床层颗粒粒径的增加而减少 ;最终湿含量随着初始湿含量的增加而增加 .因此 ,它可以用来干燥并析出粉末物料 .
In a stainless steel aerated spouted bed reactor with an inner diameter of 92 mm and a height of 100 mm, the calcium carbonate powder material is used as fine particles, the wet fine particles are filled in the intermittent injector, and the air is used to inflate and spurt the gas to the fine particles The effects of bed temperature, height of inert particle bed, particle size, spouting gas velocity, aeration velocity, moisture content and injection volume on the rate of precipitation of fine particles in an inflatable bed were comprehensively investigated. : The precipitation rate of calcium carbonate powder material increases with the increase of spouting gas velocity, bed temperature, bed height and aeration rate; it decreases with the increase of wet content, injection volume and bed particle size; the final wet The content increases as the initial moisture content increases, so it can be used to dry and precipitate powdery material.