1、 40 2 20 0 5 M 2 MIron andSteelVOL. 40, No. 2February 2005 S V / 刘 浏( M 9 8 , 100081)K 1 : s S = V / C $ , 9 S = M ; ) a V p p 8 / a r 8 Z b V S “ - K 1 Z E , V / S 3 / ? Z v w T b 5 M , M ; ) p 8 V r 8 V V / ? Z , | A 6 r m b 1 B ? Z M ; V / b1 o M : ; V ; M ) m s | : TF729.5 D S M : A c I | : 0449
2、-749X ( 2005) 02-0001-05Technical Progress in Converter Steelmaking in ChinaLIU Liu(Metallurgical Department, Central Iron and Steel Research Institute, Beijing 100081, China)Abstract: Based on the analysis of current technical situation of converter steelmaking in China, the experiencesin the field
3、s of hot metal desulphurization, long life combined-blowing and high efficiency smelting techniques aresummarized.Currently the converter steelmaking is the major steel production method in China. Its technicalprogress can greatly promote the steelmaking technology in China.In recent 5 years, the co
4、nverter steelmakingtechnology, which is represented by hot metal desulphurization, long life converter combined-blowing and highefficiency smelting techniques has got great progress and benefit.The direction of the further technical developmentis proposed.Key words: steelmaking; converter; hot metal
5、 pretreatment “ - , V E W K 1 3 Z E b S L R , l , N L a + , B V / ? Z b 2001 M d 9 , V 1. 18at, M S 1.37at86% 1, 9 V S “ - K 1 Z E b “ S 6 ? Z , 2003 M ( GDPn Q l 1000 , r 1090 , S 6 N 9 g p S M (1951-), 3 , p V , q ) ) = ; E-mail: liul cisri. com. cn; : 2004-10-158425 t, S M V 9 51%; 7 v a V s Y 35
6、24.7 t 3665.7 t, sY M S V 21.7% 22.5%bV 3 s , l V 3 y , 1 l Z 3 , Y M ) a9 e V 5 ! b V S M 3 V , “ 9 F v V , S A ( A 3 L * )a a ( E a L )a+ y ( a a a ) F M ( a A A )bv V 1 3 A b “ - , S = v v a V ( M ; ) a V a9 e 5 / , ! , 5 , S M 95%,7 8 E 80%, 8 E ; r q b(2) ) H W bB 8 B ) H W 5j8min, 7 8 E 10 min
7、b(3) ) l bB 8 ) V ( 8.12 , 7 8 E 8j14 b(4) M bB 8 ( M 7.1 kg/t,7 8 E 10j12 kg/tb B 8 , V P M ) 15 / b + M ,S = M ; / | B # , 1 / ? Z Z _ / b(1) v M ) ? , L C 100%M ) , 1 B 4 ; , ) b(2) ? b “ - , S = ; ) M V ; C E s , Y r 200%j300%, ; 1 y M ? a c ; V l / by N , ? , ? r T - 4 / , B M 1 1 bV 2S = v a a
8、l V / 6 S 1 Table 2Comparison of technical and economic indexes of different size converters “ d 9 V 1 /(m3ct- 1) : S V / m 2 ( 30368 V ) V v Fig. 2Bottom photo after tapping (30368 heats )m 3 V - s Fig. 3 O in different stages of campaign V b = 8 I T , V i b 8 V , C , i B v 0.003; 7 / 8 V , i 0.002
9、8bm 3 V b = (30368 V ) , M t , V b = p 8 ? z 8 r T b3. 3 8 V . 8 V g .B M ; / J . , 2002, 18(4):1-2. ( LIU Bing-yu. Application of Hot M etalDesulphurization Practice Using Pure Manesium J . Steelmaking, 2002, 18 (4): 1-2. )5 .M ; ) / J . ,2002, 18(1): 9-15. (DENGQi-lin. Application of Hot M etalDesulphurization Practice in WISCO J . Steelmaking, 2002,18 (1): 9-15. )6 z . S y ? Z J . M , 2004, 39 (9 : S V /
