共查询到20条相似文献,搜索用时 93 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
针对单吹颗粒镁铁水脱硫工艺参数控制精度和全自动控制要求高的特点,基于工艺机理和大量工程实践经验数据,建立脱硫剂质量、喷吹给料强度、喷枪插入深度、喷吹氮气流量等关键喷吹工艺参数控制模型,实现上述工艺参数的自动计算和精确控制,在此基础上实现铁水脱硫"一键式"全自动喷吹控制。所述控制模型和控制方法已在国内某炼钢厂150 t单吹颗粒镁铁水脱硫工程中成功应用并取得良好的控制效果。 相似文献
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
纯镁铁水脱硫技术的应用 总被引:8,自引:0,他引:8
根据颗粒镁较完全地溶于铁水和保证镁充分利用的条件选取喷吹模式,使脱硫剂单耗降低,铁损减少,处理工序时间缩短,铁水温降减小,喷枪寿命提高,喷吹过程平稳,有效降低铁水脱硫生产成本。 相似文献
20.
A mathematic model for an argon bubble containing magnesium vapour in hot metal was developed for interpreting the desulfurization process by injection of granulated magnesium. The change of rising velocity, pressure, size and magnesium vapour content of the bubble and the rates of desulfurization, deoxidation, magnesium dissolution by the bubble were investigated with the aid of the model. Most of the magnesium vapour in an argon bubble is consumed by the reaction with hot metal while the bubble is rising from 3.5 m depth in hot metal to the bath surface. The magnesium vapour content in the bubble decreases to a minimum halfway on the bubble's rising and slightly increases thereafter as the bubble approaches the bath surface. During the initial or middle stages of the injection process, magnesium vapour in a gas bubble is mainly consumed by the desulfurization and deoxidation of hot metal. During the final stage or within the active zone of the process, magnesium dissolution into hot metal and unreacted magnesium vapour in the bubble arriving at the bath surface become significant. 相似文献