（1. Metallurgical Technology Department, Central Iron and Steel Research Institute, Beijing100081,China 2. Steel Making Plant, VALIN LY Steel， Loudi 417009， Hunan, China 3. Chongqing Energy Conservation Office, Chongqing 400015， China）
Abstract：The theoretical calculation about heat transfer of oxygen lance in converter was performed for the problem of excessive cooling water flow of oxygen lance for 210t converter in VALIN LY steel. For comparison, the cooling water flow and heat flux of oxygen lance in 11 domestic large- scale converter steel plants were investigated. The results showed that the cooling water flow of oxygen lance in domestic large- scale converters was 25% higher than that in foreign countries. Moreover, the thickness of outer tube of oxygen lance was also lager (2- 4mm), which increased the equipment weight as well as the thermal resistance. The reasonable flow of cooling water flow for Liangang was proposed. The cooling water flow of oxygen lance for domestic large- scale converters and the velocity of cooling water in each position of oxygen lance were also suggested.
杨文远，刘双喜，肖遵湖，王明林，吴鸿祚，周军军. 华菱涟钢大型转炉氧枪冷却水流量的研究[J]. 中国冶金, 2015, 25(10): 27-32.
YANG Wen- yuan，LIU Shuang- xi，XIAO Zun- hu，WANG Ming- lin，WU Hong- zuo，ZHOU Jun- jun. Study on cooling water flow of large converter oxygen lance in VALIN LY steel. China Metallurgy, 2015, 25(10): 27-32.
2015, Vol. 25 
