(1. 江西理工大學建筑與資源工程系，南昌330013；
2. 中南大學冶金與環(huán)境學院，長沙410083；
3. 江西理工大學冶金與化學工程學院，贛州341000)
摘 要: 基于吉布斯最小自由能原理，建立基于時間離散的傾動爐雜銅精煉過程的動態(tài)多元多相平衡熱力學模型。在與生產實踐相同熔煉溫度、風量、氧化及還原時間等操作工藝條件下，模擬計算各周期的各相組分含量。與生產數(shù)據(jù)相比，氧化造渣期粗銅相中Cu含量(質量分數(shù))的絕對誤差為0.050%，相對誤差為0.050%；O含量的絕對誤差為0.012%，相對誤差為2.638%。還原期粗銅相中Cu含量的絕對誤差為0.042%，相對誤差為0.042%；O含量的絕對誤差僅為0.006%，相對誤差為4.267%。爐渣相中Cu、Fe含量絕對誤差分別為1.052%和0.504%，相對誤差分別為2.782%和5.143%。該模型基本能夠反映傾動爐雜銅精煉過程中各相雜質的分布情況，可為傾動爐雜銅精煉中雜質分配規(guī)律的研究提供理論依據(jù)。
關鍵字: 傾動爐；雜銅精煉；動態(tài)多相平衡；時間離散
（1. School of Construct and Resources Engineering, Jiangxi University of Science and Technology,
Nanchang 330013, China;
2. School of Metallurgy and Environment, Central South University, Changsha 410083, China;
3. School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology,
Ganzhou 341000, China）
Abstract:Based on the principle of Gibbs free energy minimization, a multicomponent and multiphase equilibrium thermodynamic model of scrap copper refined by tilting furnace based on time discretization was built. The contents of each component in every period were calculated at the same process conditions with production test, such as smelting temperature, air volume, oxidation time and reduction time. Compared with the production data, the absolute error of the Cu content (mass fraction) in blister copper of oxidation period is 0.050%, and its relative error is 0.050%; the absolute error of O content is 0.012%, and its relative error is 2.638%. The absolute error of Cu content in blister copper of reduction period is 0.042%, and its relative error is 0.042%; the absolute error of O content is 0.006%, and its relative error is 4.267%. The absolute errors of Cu and Fe contents in slag are 1.052% and 0.504%; the absolute errors of Cu and Fe contents in slag are 2.782% and 5.143%. This model can basically reflect impurities distribution of the refining process of scrap copper by tilting furnace, which can provide theory basis for research on impurities distribution of scrap copper refined by tilting furnace.
Key words: tilting furnace; scrap copper refining; dynamic multi-phase equilibrium; time discretization
