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| Study and Innovation of the Key Technologies on Modern Large Blast Furnace |
| ZHANG Fuming1,2 |
| 1.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;2.Beijing Shougang International Engineering Technology Co., Ltd., Beijing 100043, China |
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Abstract The key technologies at modern large blast furnace are bellless top, high blast temperature and dry big filter dedusting of BF gas. Bellless top equipment of large blast furnace designed and developed by our own has reached advanced level in the world in terms of equipment reliability and service life by 3D design optimum, simulation analysis and pilot trail; fullydry impulse bag filter dedusting technology of BF gas, which is also developed by our own, has gained technical breakthroughs in terms of optimized system design, gas temperature control, pneumatic conveying of dedusting fines; the integrated innovative highefficiency longlife hightemperature hot blast stove technology, through applying hightemperature preheating technology of combustion air, improving heat transfer efficiency of hot blast stove and optimizing structure of the hot blast stove system, enables the blast temperature to reach 1250 ℃ with BF gas as fuel.
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Received: 01 January 1900
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2009, Vol. 44 
