共查询到19条相似文献,搜索用时 62 毫秒
1.
针对武钢第一炼钢厂采用纯镁脱硫存在渣量少而稀,渣中硫含量高,扒渣困难,扒渣时间长达11分钟/次、扒渣铁损高达5kg/t、炼钢回硫达0.0051%的情况,提出了在铁水罐上安装透气砖吹气辅助扒渣工艺,选择了合理的透气砖材质及安装位置,并在实践过程中不断改进.改善了扒渣效果:平均扒渣时间≤7min,平均扒渣铁损降至3.5kg/t以内,平均出钢回硫降至0.002%以内.透气砖平均寿命达到110次以上。 相似文献
2.
3.
5.
6.
7.
8.
通过建立在相似原理基础上水模型试验研究单吹模式下透气砖位置、透气砖特征和吹气量对液面排渣效果影响规律,而且对比分析了铁水包单吹模式和双吹模式的排渣效果。综合模拟试验结果,针对铁水吹气扒渣技术应用提出了合理建议。 相似文献
9.
10.
11.
12.
韶钢炼轧厂CONSTEEL电炉热装铁水工艺有效地降低了冶炼电耗和钢铁料消耗、缩短了冶炼时间;文章探讨热装铁水工艺的热装比例、供电曲线和造渣制度,以期进一步改善有关技术指标. 相似文献
13.
14.
15.
16.
17.
In order to explore effects of element content and temperature on the viscosity, viscosities of molten iron were precisely measured by the oscillating crucible method. The results obtained are summarised as follows: The viscosity of molten iron rises first and then decreases with the decreasing temperature; the viscosities before and after the turning point are the viscosity property and the solidification property, respectively. The temperature of the turning point decreases with the increasing carbon content. The viscosity increases with the increasing silicon and titanium content; on the contrary, the viscosity shows a downward trend with the increasing manganese, phosphorus, and sulphur content. The mechanism of various elements on the viscosity was analysed; the quantitative relationship between the viscosity and element content was obtained. The prediction model of the viscosity was established based on the co-existence principle; the calculation results of the model were in accordance with the measurement. 相似文献
18.
介绍了KR法铁水脱硫工艺的发展、脱硫的原理、该工艺的优、缺点及影响脱硫效果的因素,对喷吹和KR脱硫工艺进行了比较,为铁水脱硫装置的选择提供借鉴. 相似文献
19.
韦士来 《冶金标准化与质量》2014,(5):49-53
通过对含铬铁水(0.5%~0.8%)冶炼过程中的炉渣进行化学成分、矿相、扫描电镜能谱和X-射线衍射综合分析;基于现场实际生产数据和炉渣形成过程,系统分析转炉,台炼含铬铁水的冶炼行为,确定了铬元素的氧化过程变化情况及终渣产物形态,为转炉冶炼时终渣成分控制和冶炼工艺改进提供一定的指导。 相似文献