Research on performance optimization of RH vacuum refining equipment
FU Jiaojiao
ZHAO Teng
CHENG Hongbing
LI Weifeng
YANG Zhenghua
WANG Xuying
ZHANG Bo
FU Kang
Abstract：A reasonable performance optimization plan was proposed based on research and analysis of the problems in improving the quality of steel products in the RH vacuum refining process of a certain factory.The entire set of four stage vacuum pumps(B1,B2,S3,S4),vacuum silos,circulating gas valve stations,and steam temperature and pressure reducing devices have been optimized.The optimized effect is as follows:when the vacuum degree is 67 Pa,the vacuum pumping capacity is increased by 150 kg/h,and the average time for vacuum degree to reach 100 Pa is 2.3 minutes.The vacuum stability is improved(the rebound value of vacuum degree is below 100 Pa);The proportion of hydrogen content at the end point of molten steel less than 0.000 12％has increased by 36.40％compared to before the renovation.The online use of impregnation tubes has increased by 30 heats,and the total production of high-grade turnout rails,high-speed rails,and heavy rail series products has increased by 10.79％.
Keywords：RH vacuum refiningoptimization of device performancevacuum stabilitydehydrogenation effect
Publication Date：2024-09-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 7-13 )