Research on Refractories Technology to Meet the Demands of Steel-making Process

China 's RefractoriesCHNRZheng Yiyu, bom in 1960, is a professorship senior engineer. He obtained his bachelor' s degree fromUniversity of Science and Technology Beijing in 1982 and received his master' s degree from BusinessAdministration Specialty of Fudan University. Now he is the director of Steel-making Plant of Baosteel.Research on Refractories Technology toMeet the Demands of Steel-making ProcessZHENG Yiyu, MOU Jining, SHEN ZhongmingBaoshan Iron & Steel Co., Ltd., Shanghai 200941, ChinaAbstractdeveloped, supporting Baosteel to run with high efficien-Based on the refractories research of Baosteel, thecy and keeping Baosteel having low refractory consump-demands for refractories from the developing steel-makingtion per ton steel，also promoting the technical improve-technology as high security, high effciency, energy sav-ment in Chinese metallurgy and refractory fields.Variety and properties of refractory materials di-ing and enwironment friendly are introduced.Key words: Steel-making, Converter bottom blowing,rectly affect the stability of steel- making process andChrome- free RH refractories, Wet spraying, High ef-development of new steel type. Every lttle benefitmade by iron and steel enterprise also consists of theciency, Safety ，Refractories contract purchasededication from refractories enterprises. Today， steelmakers are constantly extending product grades， in1 Prefacecreasing product quality ，optimizing organization modeRefractories are important auxiliary materials ap-and enlarging the production of premium products, justplied in iron and steel industry. About 70% of refracto-to meet the fierce competition both in China andoversea. Meanwhile, requirement on metallurgy envi-ries are consumed in inron- andWith the research and development of key problems sol-ronment is getting stricter and stricter; “ Green Pur-chase”is put forward. Demand for higher quality andving projects on refractories technology since th1980s，refractories technicians have served their cus-purer system just gives a wide developing space to re-fractories technology. Based on the key refractories re-tomers by combining manufacture, supply and innova-search and application of Steel-making Plant of Baost-tion, and have improved China' s refractory industry.eel, this article tries to reveal the new requirement ofVarieties of refractories for iron and steel industry havesteel-making process to grade and quality of refractorybeen extended and the quality has also been raised.products.Wi:th more than 20 years ’construction and devel-opment, Baosteel has being listed in“world top 500”iron and steel enterprise. The development history of2 Refractory Materials for ConverterBaosteel also reflects the progress of China' s refracories 2. 1 Converter Lining Life Managementindustry. In the early years of Baosteel ，most refractoryCombined blowing technology is one of the coreproducts were imported. By 1995, the localization ratetechnologies in steel- making process, which can short-had reached 98% from 23% at the beginning. A series en the smelting (中国煤化工content inof new pattern and high efficient refractory products arelag， increase thethe tem-YHCNMHG lheteChina' s Refractories Vol. 20. No. 4.20111ZHENG Yiyu, MOU Jining, SHEN ZhongmingCHNRThe success in ladle wet gunning patching experi-tract purchase mode. The practice in recent yearsment provides an advantageous condition for Baosteel’sproves that Baosteel has set up a win-win relationshipladle refractory purification and meeting the develop-with refractories suppliers. As strategic partners ofment requirements of new steel grades.Baosteel, refractory enterprises must further strengthenproduction process quality control, pay more attention51Hetractoy Materials for Continuousto new technical research and innovation, advanceCasting TUndishproduct function to meet the demand from new steelgrade exploration, improve product performance, andBased on the high-purity steel grades technologystarted from the 1990s ，Baosteel developed operationco-develop refractories technology with Baosteel.and management technology on batch producing high-purity IF steel and pipe line steel, and enhanced com-7 Conclusionprehensive control level and competitiveness of pureSteel- making technical development is the drivingsteel. To keep with the advancement of steel -makingorce and basis to progress of steel-making refractories.process，Baosteel developed all-basic tundish refracto-ries. In 2010, premium steel grade rate of Baosteel as-During the 12" “Five-Y ear-Plan”period ，refractoriescended to 65. 3%. To ensure stability and high eff-industry should put more emphasis on high security ,cient of tundish refractory materials, Baosteel is tryinghigh efficiency , energy saving and environment protec-to optimize tundish argon blowing system and purifyingtion, invest more to scientific research, insist on selffunction of refractory materials to give a technical sup-innovation, focus on customers, strengthen the unionport to steel product quality.of research, supply and production ，enhance the prod-uct properties and application technology, promote asustainable development in refractories technology to6 Refractory Supply Managementmeet the demand from advanced steel-making process.Steel-making Plant of Baosteel started refractoriescontract purchase management from 2008，turning tra-ditional purchase mode into strategic cooperative con-Received in Aug. , 2011News on Conferences& ExhibitionsIndian Ceramics 20121 Ceramitec 20127”Annual Ceramic Materials, Machi-New Munich Trade Fair Centre,nery, Supplies & Technology ShowMunchen, Germany20-22 March, 2012May 22-25.2012Gujurat University Exhibition Center,Http://www. ceramitec de/en/homeAhmedabad, India■4" International Congress on CeramicsHttp://www. indian-ceramics .com(ICC4)■CEMENTTECH 2012Including 3'* Ceramic Leadership SummitBeijing Exhibition Center, Beijing, ChinaTrackMarch 28- -30, 2012Sheraton Chicago Hotel & Towers,Contact information:lliois, USAChen PingyuanJuly 15-19, 2012Tel: +86- 13520970820http://ceramics. org/4th- international-congress-E-mail: chenpy201 1@1 26.comon-ceramics-icc4中国煤化工YHCNMHG.2011 21China "s Ketracctones vol.2U, NO.4, 2011