Analysis and Optimization on Hot Metal KR Desulphurization Process by Response Surface Methodology

王震; 苏春阳; 潘明旭; 朱国富; 朱祥; 李坚

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Analysis and Optimization on Hot Metal KR Desulphurization Process by Response Surface Methodology

更新时间：2026-01-21

- Analysis and Optimization on Hot Metal KR Desulphurization Process by Response Surface Methodology
- Special Steel Vol. 36, Issue 3, Pages: 5-8(2015)
- 作者机构：
  
  1. 大冶特殊钢股份有限公司炼钢事业部,黄石,435001
  2. 高品质特殊钢湖北省重点实验室,黄石,435001
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：03 December 2014，
  
  Online First：17 August 2022，
  
  Published：17 August 2015
- 稿件说明：
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王震, 苏春阳, 潘明旭, et al. Analysis and Optimization on Hot Metal KR Desulphurization Process by Response Surface Methodology[J]. Special Steel, 2015, 36(3): 5-8.
DOI：

王震, 苏春阳, 潘明旭, et al. Analysis and Optimization on Hot Metal KR Desulphurization Process by Response Surface Methodology[J]. Special Steel, 2015, 36(3): 5-8. DOI：

摘要

运用响应曲面法（RSM-response surface method）统计分析和研究了脱硫剂（/%:80.55Ca，0.04S

0.01P，4.34SiO

2，

6.06CaF

2，

0.05H

O）加入量（650~950 kg）

搅拌时间（7~11 min）

搅拌桨转速（90~110 r/min）

搅拌桨插入熔池深度（850~1 150 mm）等参数对115~117 t铁水（0.03%~0.06%S

1 250~1 350℃）KR法脱硫效率的影响

并得出回归模型方程。结果表明

采用脱硫剂加入量820 kg、搅拌9 min、搅拌桨的转速101 r/min、搅拌桨插入熔池的深度985 mm的优化工艺参数

进行铁水KR预脱硫

脱硫效率预测值为91.99%

实际值为90.18%

相对误差为2.0%;优化后脱硫工艺所使用的脱硫剂消耗有所降低

且产品的一次合格率从88.35%提高到95.88%。

Abstract

The effect of parameters including adding amount (650 〜950 kg) of desulfiirizer (/% ： 80. 55CaO

0. 04S

0. 01P

4. 34SiO

6. 06CaF

0. 05H

stirring time (7 ~ 11 min)

stirring impeller rotating speed (90 〜110 r/min) and submerged depth of impeller (850 ~ 1 150 mm) on efficiency of KR desulphurization of 115 ~ 117 t hot metal (0. 03% ~ 0. 06% S

1 250 〜1 350 ℃ ) has been statistic-analyzed and studied by using response surface method ( RSM)

and a equation of regression model is obtained. Results show that with using the optimized parameters- adding amount of desulfurizer 820 kg

stirring for 9 min

rotating speed of stirring impeller 101 r/min and submerged depth of impeller in bath 985 mm

with hot me

tal KR desulphurization the predicted value of efficiency of desulphurization is 91. 99%

while the real measured value is 90. 18%

the relative error is 2. 0% ； with optimized desulphurization process the consumption of used desulfurizer decreases and the first qualified rate of metal increases from original 88. 35% to 95. 88%.

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