Quick ande reliable tundish nozzle chenger system for continuous casting machine
The system includes tundish nozzle changer facitlities, auxilary equipment tools and inspection instruments,and is capable of quick change of immerged nozzles for consecutive times,helping realiz the continuous pouring of multiple furnances by single tundish.it has a perfect sealing system that can effectively prevent the secondary oxidation of molten steel and guarantee the cleanliness of molten steel during the way between tundish and casting mould.The system adopts several new processes and techniques, obtained eight national patents including three invention ones, and been successfully used in some large and medium-sized steel plants in China.
1, Change of immerged nozzle for consecutive times, helping realize the tundish continuous pouring of multiple furnaces
2, 1.5second instant change of immerged nozzle in continuous casting without stopping
3, Change of immerged nozzle without tundish lifiting
4, Effective means for blockage and oxidation prevention-two circuits of argon supply and one circuit of compressed air supply,with one circuit of argon for upper nozzle and the other circuit of argon for sealing the joint between upper and lower nozzles, and the compressed air for protection of main parts.
5,Quick and reliable accident handling means, and safe and clean treatment means for ending the pouring
6,improvement of tecnical and economic benefits of continuous casting-a comprehensive economic benefit of more than 10 million yuan for an annual sreel capacity of 1.5 million ton
7, A full series with multiple sizes-products of small, medium and large sizes, suitable to tundish nozzle quick-change for various throughputs of molten steel, various types and sizes of slabs.