(北京科技大學(xué) 冶金與生態(tài)工程學(xué)院，鋼鐵冶金新技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室，北京100083)
摘 要: 利用1/4水力學(xué)模型試驗(yàn)研究煉鎳轉(zhuǎn)爐濺渣工藝參數(shù)對(duì)爐襯各部位濺渣量的影響。結(jié)果表明：濺渣時(shí)間和爐體傾角是影響濺渣總量的顯著性因素，且與之成正比關(guān)系。濺渣量分布受爐體角度和初始熔池深度影響較大，當(dāng)爐體角度由−10°增至−30°或初始熔池深度(h/D)由0.078增至0.172時(shí)，風(fēng)口對(duì)面的濺渣量比例由80%急劇降為5%左右，風(fēng)口面和端墻面濺渣量相應(yīng)增大。濺渣高度隨著爐體角度和初始熔池深度增加而降低。濺渣模式分為噴濺、渣涌或兩者共存。濺渣過(guò)程通過(guò)調(diào)整爐體傾角，可以實(shí)現(xiàn)較大的濺渣總量和均勻的分布。工業(yè)濺渣試驗(yàn)驗(yàn)證了水模型的研究結(jié)果，風(fēng)口粘結(jié)過(guò)多等問(wèn)題得到了解決。
關(guān)鍵字: 鎳轉(zhuǎn)爐；濺渣護(hù)爐；水模型；濺渣模式；噴濺
（State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering,
University of Science and Technology Beijing, Beijing 100083, China）
Abstract:The influences of operational conditions on slag splashing for the lining of nickel blowing converter were investigated with an 1/4 scale hydraulical model experiment. The results show that the time of gas blowing and the angle of furnace play a significant role in total amount of splashes in direct ratio. The distribution of splashes is largely decided by the furnace angle and the initial bath depth. Proportion of splashes on opposite side of tuyere line is dramatically reduced from 80% to 5% or so when the furnace angle or the initial bath depth (h/D) varies from −10° to −30° or 0.078 to 0.172, meanwhile those on side of the tuyere line and the side end are greatly increased; the height of splashing decreases with the tuyere and initial bath depth increasing. The mode of slag splashing can be defined as the injection slag splashing and surging slag splashing or two both. Large amount and even distribution on different walls are acquired by adjusting angle of furnace at definite bath depth. The industrial test agrees well with the results in the model, and the problems such as heavy accretion on tuyere line are also resolved.
Key words: nickel converter; slag splashing; water modeling; splashing mode; injection
