Research on Composite Slag Dam Cast with Magnesia Castables and Alumina Magnesia Castables

To enhance the serdice life of magnesia based slag dam, composite slag dam was designed to be cast with alumina magnesia castables in slag line and magnesia castables in molten steel zone. Workability of the magnesia castables for the slag dam was improved and a suitable vibration shaping method was adopted to combine it with alumina magnesia castables. The result shows： （1） workability and setting performance of magtwsia castables can be improved to match with alumina magnesia castables by adjusting setting retarder and water reducing agent, and adding proper silica fume ; （2） composite slag dam cart be prepared with alumina m,agnesia castables and the improved magnesia castables, whether by up - down composite method or right - left composite method; in order to get full vibration arrd make interface .fluctuation have proper amplitude, the vibration time oJ the two methods after two different castables contact with each other is 3 and 2.5 minutes, respectively; （3）the result of the on-site test proves that the design aims for reducing pollution to hot metal and improving corrosion resistance have been achieved.

连铸中间包挡渣堰系统的优化研究

本文介绍了本钢炼钢厂通过对连铸挡渣堰系统的优化研究,提高了中间包挡渣堰系统的冶金功能,保证了连铸坯的质量,尤其是内部质量满足高附加值钢种的要求,实践证明,新型挡渣堰系统的使用寿命及使用效果完全满足大生产要求,具有良好的推广应用价值。

连铸中间包挡渣堰系统的优化研究

介绍了本钢炼钢厂通过对连铸挡渣堰系统的优化研究,提高了中间包挡渣堰系统的冶金功能,保证了连铸坯的质量,尤其是内部质量满足高附加值钢种的要求,实践证明,新型挡渣堰系统的使用寿命及使用效果完全满足大生产要求,具有良好的推广应用价值。

渣场拦渣防洪系统设计

首先对灰渣场的环境、容量、作用、工程内容进行了简单的说明,其次对拦渣坝的结构做法进行了详细的设计,坝体为均质坝,主体部分由粘土压实砌筑,坝上游坡面防渗体采取土工膜防渗,坝外采取浆砌石护坡,并详细说明了地基处理、坝面排水、护坡、坝顶道路的做法,最后对防洪系统进行了系统的阐述,防洪系统截洪沟结构均采用MU30浆砌块砌筑,并按照场区情况对排水沟、场底导排干管、渗滤液收集池、竖井进行详细的设计。