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1、精选优质文档-倾情为你奉上华北理工大学轻工学院Qing Gong College North China University of Science and Technology毕业中英文翻译（英译汉）设计题目：三座120t的氧气转炉炼钢车间工艺设计学生姓名：崔军坡 学 号：1专业班级：12拓展五班 学 部：知行书院指导教师：贾雅楠 2016年05月19日Iron-smelting Technological Development and Working of Blast FurnaceIn recent years, China smelted iron is at the high sp
2、eed development phase, in 2007 the national pig iron output achieved 4.6944 hundred million t, grew 15.19% compared to the previous year, its increased range was lower than the steel output the same time increased range, accounted for the world ultimate output 49,74%.In 2007 national key steel and i
3、ron business immovable property iron 369,000,000 t, grew 13.74% compared to the last year, other business immovable property iron 120,000,000 t, grew 19.60%.The place enterprise iron output speed-up is higher than the large and middle scale iron and steel enterprise.In 2008 the first half year natio
4、n produces hard 246,420,000 t, grows 7.89% compared to the previous year, reduced the development tendency.It is estimated that, in 2008 our country steel output achieved 520,000,000 t, the pig iron output will achieve 490,000,000 t.This year, our country will smelt iron productivity to surpass 600,
5、000,000 t, but Shang Youyue 60,000,000 t/, year productivity belonged to row of the elimination (will mainly be below 300m the volumeThe above situation indicated that, the place ironworks development tendency was still in is higher than the nation large and middle scale iron and steel enterprise.Ma
6、 Gang and Taiyuan Steel Works complete the 4063m blast furnace, enable our country to have 7 4000m level blast furnace.At present is constructing the 4000m level blast furnace (this steel, the Anshan Iron and Steel Company) have 4, Sha Gang and Beijing Tang Company are constructing the 5500m level b
7、last furnace and the 5800m level blast furnace.One batch are bigger than the 2500m level blast furnace to construct, impelled our country blast furnace large scale advancement greatly. At present China has more than 1300 blast furnaces, is bigger than the lO00m volume blast furnace to have 150 appro
8、ximately, the 300lO00m blast furnace approximately more than 500 places, is smaller than the 300m blast furnace to have more than 600 places approximately.The nation has more than 980 iron-smelting enterprises approximately.This indicated that, the Chinese iron-smelting industry concentration degree
9、 is low, blast furnace average stove Rong Pianxiao, is being in the different level, the different structure, many kinds of production technical level communal development stage, also is at the high speed development phase.Estimated the Chinese pig iron output the crest is above 600,000,000 t. Along
10、 with our country pig iron output high speed growth, the blast furnace iron-smelting production technical level also obtains the fast progress.Table 1 for recent years Our country Key Iron and steel enterprise blast furnace iron-smelting technology economic indicator.Because enters in 2008 the crude
11、 fuel to rise in prices, the mass fluctuation, the blast furnace iron-smelting production target has glides down. The Chinese blast furnace iron-smelting production technology is in the world advanced level, the blast furnace operation technology enters the mature development phase.Take the Baoshan
12、Steel Corporation, Wuhan Steel Corporation, Beijing Steel Corporation, the Anshan Iron and Steel Company, has realized the highly effective production as representatives one batch of large-scale blast furnaces (coefficient above 2.5t/m.d, fuel ratio is lower than 500kg/t, life reaches for 15 years b
13、y superiorly).My guozhong small furnace production technology already was many years moves in the high-tech level, one batch of 300750m blast furnace capacity factor above 3.0t/m.d, highest reached 4.3t/m.d, entered the oven coke ratio to be lower than 400kg/t, spurted the coal to compare above 150k
14、g/t.But, between the enterprise the technological development is not balanced, after Shang You one failed an examination the target existence. In recent years, our country hot-blast temperature eliminated many years to pace back and forth, the progress was big, this was everybody diligently result.I
15、n 2007 our country key hot blast temperature ratio previous year enhances 25℃.Specially the new construction one batch of big blast furnaces (are bigger than the 2000m above blast furnace) the hot-blast temperature to be possible above 1200oC, its life also above 25 years, achieves the interna
16、tional advanced level.The hot-blast stove pattern also diversifies, the big blast furnace multipurpose external combustion type and the internally fired type (Beijing Steel Corporation Beijing Tang the Company 5500m blast furnace burns type with Carew Jinding), the small furnace useful ball type hot-blast stove, all has the successful example, may realize the noble character to heat.Our country hot-
