Experimental investigation of glass content of blast furnace slag by dry granulation

2014 ◽  
Vol 34 (2) ◽  
pp. 485-491 ◽  
Author(s):  
Junxiang Liu ◽  
Qingbo Yu ◽  
Wenjun Duan ◽  
Qin Qin
Keyword(s):  
Experimental Investigation ◽  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Glass Content ◽  
Dry Granulation ◽  
Furnace Slag

Reactivity and performance of dry granulation blast furnace slag cement

2019 ◽  
Vol 95 ◽  
pp. 19-24 ◽  
Author(s):  
Junxiang Liu ◽  
Qingbo Yu ◽  
Zongliang Zuo ◽  
Fan Yang ◽  
Zhicheng Han ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Slag Cement ◽  
Dry Granulation ◽  
And Performance ◽  
Furnace Slag

The Experimental Study of Molten Blast Slag Dry Granulation

2011 ◽  
Vol 356-360 ◽  
pp. 1882-1885 ◽  
Author(s):  
Yang Min Zhou ◽  
Chao Li ◽  
Li Li Xu ◽  
Si Yi Luo ◽  
Chui Jie Yi
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Particle Diameter ◽  
Test Bed ◽  
Dry Granulation ◽  
Furnace Slag ◽  
Slag Waste

Based on the comprehensive experimental test-bed of blast furnace slag waste heat recovery, we study the impacts which are caused by the changes of the key parameters, such as blast furnace slag discharged temperature, the speed of the granulation device, on the particle diameter distribution and sphericity, so as to master the best operating parameters of the blast furnace slag dry granulation, and provide experimental basic materials for blast furnace slag waste heat recovery. The results show that: when the discharged temperature of the blast furnace slag is controlled in 1400°C～1450°C, and the speed of the granulation device is controlled above 2000r/min, the sphericity is better, and 80% of the particle’s diameter will be 2～5mm.

scholarly journals Method of Dry Granulation and Solidification of Molten Blast Furnace Slag

1981 ◽  
Vol 67 (7) ◽  
pp. 917-924 ◽  
Author(s):  
Mayumi YOSIIINAGA ◽  
Koichi FUJI ◽  
Tatsuhiko SHIGEMATSU ◽  
Tetsuro NAKATA
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Dry Granulation ◽  
Furnace Slag

scholarly journals Numerical simulation analysis of rotary cup centrifugal blast furnace slag

2022 ◽  
Vol 355 ◽  
pp. 02011
Author(s):  
Mengyuan Yang ◽  
Jingfu Wang
Keyword(s):  
Numerical Simulation ◽  
Blast Furnace ◽  
Liquid Film ◽  
Blast Furnace Slag ◽  
Molten Slag ◽  
Rotation Speed ◽  
Simulation Analysis ◽  
Solid Particles ◽  
Dry Granulation ◽  
Furnace Slag

In the process of centrifugal dry granulation of blast furnace slag, the thickness of the liquid film at the outlet of the rotor will have a significant impact on the degree of crushing of the slag after leaving the rotor and the size of the solid particles formed. Therefore, this paper uses the VOF method to analyse the flow of molten slag inside the cup. The results have shown that the slag flow has a significant effect on the thickness of the liquid film and the linear relationship is obvious; the thickness of the liquid film decreases with the increase of the diameter of the rotary cup and the rotation speed, and the negative correlation with the diameter of the cup is more obvious; Secondly, as the depth of the cup increases, the thickness of the liquid film decreases first and then increases. The inclination angle of the cup wall has little effect on the thickness of the liquid film.

Blast furnace slag obtained from dry granulation method as a component in slag cement

2017 ◽  
Vol 131 ◽  
pp. 381-387 ◽  
Author(s):  
Junxiang Liu ◽  
Qingbo Yu ◽  
Zongliang Zuo ◽  
Fan Yang ◽  
Wenjun Duan ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Slag Cement ◽  
Dry Granulation ◽  
Furnace Slag

Optimization Chemical Composition of the Blast Furnace Slag with Uniform Design

2013 ◽  
Vol 743-744 ◽  
pp. 210-215 ◽  
Author(s):  
Hui Wang ◽  
Su Ping Cui ◽  
Xiao Long Shang
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Raw Materials ◽  
Design Method ◽  
Uniform Design ◽  
Significance Test ◽  
Glass Content ◽  
Granulated Blast Furnace Slag ◽  
The Impact ◽  
Furnace Slag

Using the industrial limestone, fly ash and pure chemical reagents as raw materials, the blast furnace slag was prepared in the simulation condition of the actual slag-making process. Using uniform design method, the influence of blast furnace slag composition factors such as quaternary alkalinity, ratio of CaO/MgO and ratio of SiO2/Al2O3 on the glass content of blast furnace slag were studied in the present in investigation, the relationship between glass content and the various factors has been obtained through regression analysis, and the main influence factors and the optimum blast furnace slag compositions been found out. The results showed that, the impact of various factors on the glass content of granulated blast furnace slag was quaternary alkalinity > ratio of SiO2/Al2O3 > ratio of CaO/MgO. According to the significance test of the regression equation and the verification experiment, it was concluded that the optimum compositions of granulated blast furnace slag were: the quaternary alkalinity was 0.85, the ratios of CaO/MgO and SiO2/Al2O3 were 11.5 and 6.5 respectively, and in this condition, the glass content of granulated blast furnace slag reached to 98.47%.

Influence of Cooling Ways on the Structure and Hydraulic Activity of Blast Furnace Slag

2014 ◽  
Vol 633 ◽  
pp. 234-239 ◽  
Author(s):  
Hui Wang ◽  
Su Ping Cui ◽  
Ya Li Wang
Keyword(s):  
Compressive Strength ◽  
Blast Furnace ◽  
Liquid Nitrogen ◽  
Blast Furnace Slag ◽  
Glass Content ◽  
Air Cooling ◽  
Water Cooling ◽  
Hydraulic Activity ◽  
Liquid Nitrogen Cooling ◽  
Furnace Slag

Using the industrial limestone, fly ash and pure chemical reagents as raw materials, the blast furnace slag was prepared in the simulation condition of the actual slag-making process by three different cooling ways, including air cooling, water cooling and liquid nitrogen cooling. Combined with different test methods such as XRD, SEM, IR, the influence of cooling ways on the structure and hydraulic activity of blast furnace slag was studied in the present in investigation. The relationship between glass content, compressive strength and the phase compositions of blast furnace slag has been obtained. The results showed that, the glass content of water cooling slag or liquid nitrogen cooling slag was slightly higher than that of air cooling slag, there was obviously gehlenite crystal phase in air cooling slag. The 7d and 28d compressive strength of three slags did not present positive correlation with vitreous content, the sequence of 28d compressive strength of three slags was water cooling slag > air cooling slag > liquid nitrogen cooling slag. SEM observation found that crystallization phases in water cooling slag had a small grain and uniform distribution, this kind of structure was advantageous to the latter hydration reaction and strength development of blast furnace slag.

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