It was concluded that there was suitable conditions for the SPA-H steel to be rapidly decarbonized according to its chemical characteristics based on the theoretical analysis.And therefore,after taking such measures as optimizing the oxygen flow and oxygen pressure,re-ducing the average height of lance positions,improving the slagging system and optimizing the bot-tom blowing system,the average smelting time for the SPA-H steel was shortened by 0.6 min and the operation efficiency of a converter was improved.
关键词
SPA-H钢/转炉/脱碳/冶炼时间/供氧制度/枪位
Key words
SPA-H steel/converter/decarbonization/smelting time/oxygen supply system/lance position