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Zou Z.-P.,CISDI Group Co. | Guo X.-Z.,Anyang Iron and Steel Co.
Kang T'ieh/Iron and Steel | Year: 2012

Gas gap was the biggest threat to BF hearth long campaign life. Through academic calculations and field investigations, the influencing factors to cause gas gap in hearth area was analyzed. As the results, the effective measures involving design, construction and operation were proposed to avoid gas gap for long campaign life of BF hearth, and the solutions were provided to achieve non-gas gap operation and long hearth life. Jacket cooling, using hot water during furnace drying process and leak prevention were found to be the most effective measures of gas gap prevention.

Zhang G.,Anyang Iron and Steel Co. | Zhao G.,Anyang Iron and Steel Co. | Yi Y.,Wuhan University of Science and Technology | Wang Z.,Wuhan University of Science and Technology
ICEOE 2011 - 2011 International Conference on Electronics and Optoelectronics, Proceedings | Year: 2011

Crane logistics system is a complex process for the steel plant logistics and varied cross-operation, etc., suitable for harsh field environment presents the only viable iron and steel material consumption of the whole process of real-time tracking monitoring means to achieve an accurate measurement, on-line monitoring, cost accounting purposes in accordance furnace to improve the operational control level, reducing the consumption of iron and steel materials. © 2011 IEEE.

Shi Z.-X.,Anyang Iron and Steel Co. | Yang J.-F.,Anyang Iron and Steel Co. | Xu X.-Y.,Anyang Iron and Steel Co. | Ni B.,Control Iron and Steel Research Institute, China
Kang T'ieh/Iron and Steel (Peking) | Year: 2011

The influencing factors of ferrous charges consumption on a 100 t converter were investigated in Angang first steelmaking and rolling plant. The ferrous charges consumption was reduced to 1042.52 kg for each ton steel in 2009. The technology and management measures were proposed in raw and auxiliary materials, smelting process, slagging regime, endpoint control, secondary refining and continuous casting, which reduced costs and increased effectively social and economical benefits.

Lou S.,CAS Zhengzhou Research Institute | Luo D.,Anyang Iron and Steel Co. | Song Z.,Anyang Iron and Steel Co. | Guo P.,CAS Zhengzhou Research Institute | Wei H.,Anyang Iron and Steel Co.
Jixie Qiangdu/Journal of Mechanical Strength | Year: 2014

This article does the research on fracture reasons of main drive spindle and working rolls in a 1780 rolling mill R2 rougher mill, by using finite element analysis and fracture analysis, combined with theoretical calculations and field current feedback curve. The results are shown as follows: defect of the jaw is not the main reason for its fracture; break of jaw will not lead to fracture of the working rolls and roll flat head; during the accident, the upper roll flat head breaks firstly, then the jaw hole, latter upper roll flat head and jaws of death break in sequence, accident happens.

Wang X.-Z.,Anyang Iron and Steel Co. | Liu H.-Q.,Anyang Iron and Steel Co. | Wang S.-Z.,Anyang Iron and Steel Co. | Song S.-G.,Anyang Iron and Steel Co. | Zhang Y.-Q.,Anyang Iron and Steel Co.
Kang T'ieh/Iron and Steel (Peking) | Year: 2011

The relationship between deep desulfurization, controlling nitrogen and controlling inclusions of X70 pipeline steel were analyzed. It was pointed out that the needed qualifications and the controlling methods of strengthen desulfurization influence controlling nitrogen and inclusions, the better slag composition and slag volume control in CaO-SiO2-Al2O3 slag system which was as the desulfurization slag system and the flow rate of bottom blowing in the process refining influence desulfurization, controlling nitrogen and inclusions. And it focused on the flow of the bottom blowing and the desulfurization time at the enhanced desulfurization. From the perspective of clean steel, it was pointed that the source of the inclusions and the controlling methods and the calcium handling purposes, requirements and the effects of the low-sulfur pipeline steel. In addition, it was pointed the necessity of using the technology of hot iron pretreatment and double refining while smelting low-sulfur pipeline steel.

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