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Physical Simulation of Bubble Behaviors and Optimization of Converting Phosphogypsum into Ammonium Sulfate

机译：磷石膏制硫酸铵过程中气泡行为的物理模拟及优化

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With the rapid development of the phosphorus chemical industry, the accumulation of by-product phosphogypsum has increased year by year. The comprehensive utilization of phosphogypsum has received extensive attention. In this paper, physical simulation is used to investigate the effects of the shape of agitator, stirring speed, inlet gas flow, eccentric stirring (the ratio of the distance from the center of the agitator to the radius of the cylinder), and height of agitator (the distance between the agitator and the bottom of the reactor) on the bubble size distribution. The optimized conditions are: the agitator is SSB-D, and the stirring speed is 600 r/min, inlet gas flow is 0.12 m~3/h, eccentric stirring is 0.4, and the height of agitator is 3 cm, the size of the bubbles is distributed between 0.5 and 3 mm. Under this condition, the conversion rate of phosphogypsum can reach 91.95%. The experiment has certain guiding significance for the resource utilization of phosphogypsum.
机译：随着磷化工的快速发展，副产品磷石膏的积累量逐年增加。磷石膏的综合利用已受到广泛关注。本文采用物理模拟的方法研究了搅拌器形状、搅拌速度、入口气体流量、偏心搅拌（搅拌器中心距圆筒半径之比）和搅拌器高度（搅拌器距反应器底部距离）对气泡尺寸分布的影响。优化条件为：搅拌器为SSB-D，搅拌速度为600r/min，入口气体流量为0.12m~3/h，偏心搅拌为0.4，搅拌器高度为3cm，气泡大小分布在0.5~3mm之间。在此条件下，磷石膏的转化率可达91.95%。本实验对磷石膏的资源化利用具有一定的指导意义。

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