论文部分内容阅读
离心粒化是一种环境友好型熔渣处理工艺。目前关于离心粒化的研究均集中在渣粒形状、大小和质量分布等问题上。因此,针对离心粒化工艺,研究了转杯转速和转杯直径对渣粒飞行距离、熔渣脱离转杯速度和转杯外沿速度的影响。试验结果表明:随着转杯转速的增加,渣粒飞行距离增大;当转杯转速达到1 000r/min之后,熔渣脱离转杯速度和渣滴飞行距离基本不变。随着转杯直径的增加,熔渣脱离转杯速度和渣滴飞行距离同步增加。熔融高炉渣从转杯外沿飞向水冷壁的运动简化为水平方向匀速运动和垂直方向自由落体运动是合理的。试验结果对熔渣显热回收设备的设计有一定的指导意义。
Centrifugal granulation is an environmentally friendly slag treatment process. At present, the studies on centrifugal granulation all focus on such issues as slag particle shape, size and mass distribution. Therefore, in view of the centrifugal granulation process, the effects of rotor speed and rotor diameter on the flying distance of slag particles, the rate of delaminating the rotor slag and the speed of rotor outer edge were studied. The experimental results show that with the increase of rotor speed, the flying distance of slag particles increases. When the rotor speed reaches 1 000 r / min, the slag delaminating rotor speed and the flying distance of slag droplet basically remain unchanged. With the increase of rotor diameter, the speed of slag de-rotor and the flying distance of slag drop increase synchronously. It is reasonable to reduce the movement of molten blast furnace slag from the outside of the rotor to the water-cooled wall to a uniform horizontal movement and a free-fall movement in the vertical direction. The test results have certain guiding significance for the design of the slag sensible heat recovery equipment.