(1) Blast Furnace Practice (2) Practical Steelmaking (3) Photomicrographs of Iron and Steel

Nature ◽  
1929 ◽  
Vol 124 (3124) ◽  
pp. 401-403
Author(s):  
C. H. D
Keyword(s):  
Blast Furnace ◽  
Iron And Steel ◽  
Blast Furnace Practice

scholarly journals Optimization of heat treatment of glass-ceramics made from blast furnace slag

2020 ◽  
Vol 39 (1) ◽  
pp. 539-544
Author(s):  
Yi-Ci Wang ◽  
Pei-Jun Liu ◽  
Guo-Ping Luo ◽  
Zhe Liu ◽  
Peng-Fei Cao
Keyword(s):  
Heat Treatment ◽  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Orthogonal Experiment ◽  
Glass Ceramics ◽  
Iron And Steel ◽  
Heat Treatment Regime ◽  
Main Crystalline Phase ◽  
Optimum Heat ◽  
Furnace Slag

AbstractCaO–MgO–Al2O3–SiO2 glass-ceramics with diopside as the main crystalline phase were prepared by melting blast furnace slag obtained from Baotou Iron and Steel Company. The effect of heat treatment on the crystallization behavior of glass-ceramics, containing a large proportion of melted blast furnace slag, was studied by means of differential thermal analysis and scanning electron microscopy. The optimum heat-treatment regime was obtained by orthogonal experimental results for glass-ceramics in which blast furnace slag comprised 70% of the composition and 1% Cr2O3 and 4% TiO2 were used as nucleating agents. The nucleation temperature was 750°C for 2.5 h and the crystallization temperature was 930°C for 1 h. Under this regime, the performance of the glass-ceramic was better than that of other groups in the orthogonal experiment.

MULTISCALE AND FRACTAL ANALYSIS OF SILICON CONTENT TIME SERIES OBSERVED IN BLAST FURNACE HOT METAL USING HURST EXPONENT CHAIN

Fractals ◽  
2015 ◽  
Vol 23 (04) ◽  
pp. 1550036 ◽  
Author(s):  
SHIHUA LUO ◽  
FAN GUO ◽  
DEJIAN LAI ◽  
FANG YAN ◽  
FEILAI TANG
Keyword(s):  
Time Series ◽  
Blast Furnace ◽  
Negative Correlation ◽  
Hurst Exponent ◽  
Silicon Content ◽  
Coarse Grained ◽  
Fluctuation Analysis ◽  
Hot Metal ◽  
Iron And Steel ◽  
Generalized Hurst Exponent

Hurst exponent is an important measure of nonlinearity of dynamical time series. In this paper, using rescaled-range ([Formula: see text]/[Formula: see text]) analysis, multi-fractal detrended fluctuation analysis (MF-DFA) methods, the multiscale Hurst exponent (MHE) and the multiscale generalized Hurst exponent (MGHE) of coarse-grained silicon content ([Si]) time series in blast furnace (BF) hot metal were calculated. First, we collected these [Si] time series from No. 1 BF of Nanchang Iron and Steel Co. and No. 10 BF of Xinyu Iron and Steel Co. in Jiangxi Province, China. Then, we analyzed and compared the estimated Hurst exponents and the generalized Hurst exponent of these observed time series with some simulated time series. Our results show that the observed time series from these BFs have negative correlation with the Hurst exponent less than 0.5, the generalized Hurst exponent [Formula: see text] is a nonlinear function of [Formula: see text], and such negative correlation and local various structure persist in their moving averages of the observed time series up to lag 5 or 10.

Experimental Study on Zinc Leaching of Blast Furnace Gas Ash by Ammonia Leaching

2014 ◽  
Vol 962-965 ◽  
pp. 780-783
Author(s):  
Jie Wang ◽  
Wei Xiong ◽  
Bao Ping Zhang
Keyword(s):  
Blast Furnace ◽  
Removal Rate ◽  
Influence Factors ◽  
Environmental Benefits ◽  
Main Task ◽  
Leaching Rate ◽  
Iron And Steel ◽  
Leaching Process ◽  
Blast Furnace Gas ◽  
Ammonia Leaching

Blast furnace gas ash is one of the main solid wastes in iron and steel enterprise. The recovery of zinc from gas ash can result in considerable economic and environmental benefits. The effect of NH3/NH4+, L/S, [NH3]T and leaching time on the zinc leaching rate of blast furnace gas ash by using ammonia leaching process had been investigated in this paper. The results show that L/S and NH3/NH4+ are the main influence factors under the experimental condition. The optimal conditions for leaching process are: NH3/NH4+=2:1, L/S=4:1, [NH3]T =5mol/L, and the leaching time is 3 hours. The zinc leaching rate is 82.84% under the optimized conditions. The lead content in leaching solution is high, so the main task is to improve the removal rate of lead in the purification process.

Beneficiability Study of the Blast Furance Dust from Tangshan Iron and Steel Company

2013 ◽  
Vol 712-715 ◽  
pp. 420-423 ◽  
Author(s):  
Jin Xia Zhang ◽  
Fu Sheng Niu ◽  
Li Li ◽  
Jun Xie
Keyword(s):  
Blast Furnace ◽  
Laboratory Test ◽  
Recovery Rate ◽  
Test Results ◽  
Steel Company ◽  
Iron And Steel ◽  
Expected Effect ◽  
Blast Furnace Dust ◽  
Iron Concentrate ◽  
Laboratory Test Results

Through the analysis and study the properties, characteristics and present conditions of the flue slime of blast furnace dust, a suggestion was made of recovering carbon and iron concentrate from the blast furnace dust using a beneficiation technology consisting of gravity separation-flotation. The laboratory test results indicated that it can obtain the iron/carbon concentrate with a grade of iron 53.41%, carbon 65.21% at a recovery rate of iron 51.33%, carbon 69.29%. This mineral processing technology achieved good technical and economical results, reaching the expected effect. The technology can be applied in production and popularized.

Carbothermic Reduction of Titanium-Bearing Blast Furnace Slag

2016 ◽  
Vol 35 (3) ◽  
pp. 309-319 ◽  
Author(s):  
Yu-Lan Zhen ◽  
Guo-Hua Zhang ◽  
Kuo-Chih Chou
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Carbothermic Reduction ◽  
Treatment Time ◽  
Reduction Rate ◽  
Isothermal Treatment ◽  
Reduction Temperature ◽  
X Ray Diffraction ◽  
Iron And Steel ◽  
Furnace Slag

AbstractThe carbothermic reduction experiments were carried out for titanium-bearing blast furnace slag in Panzhihua Iron and Steel Company in argon atmosphere at high temperatures. The effects of reduction temperature, isothermal treatment time and carbon content on the formation of TiC were studied by X-ray diffraction (XRD) and scanning electron microscope (SEM). The XRD pattern results showed that MgAl2O4 phase disappeared and the main phase of the reduced sample was TiC when the reduction temperature was higher than 1,773 K. The SEM pictures showed that the reduction rate of the titanium-bearing blast furnace slag could be increased by enhancing the temperature and the C content (carbon ratio ≤1.0). Furthermore, it was also found that TiC had the tendency of concentrating around the iron. The effects of additives such as Fe and CaCl2 on the formation of TiC were also studied in the present study.

Blast Furnace Practice with Very Low Slag Volume

JOM ◽  
1963 ◽  
Vol 15 (4) ◽  
pp. 288-293
Author(s):  
J. C. McKay ◽  
J. A. Peart
Keyword(s):  
Blast Furnace ◽  
Slag Volume ◽  
Blast Furnace Practice
Sign in / Sign up

Export Citation Format

Share Document