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.

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 The Online Research of B2O3 on Crystal Behavior of High Ti-Bearing Blast Furnace Slag

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Yin-he Lin ◽  
Bin Zheng ◽  
Lin-gen Luo ◽  
Yu-long Jia ◽  
Li-qiang Zhang
Keyword(s):  
Blast Furnace ◽  
Melting Point ◽  
Blast Furnace Slag ◽  
Laser Scanning ◽  
Perovskite Phase ◽  
Solid Particles ◽  
Confocal Laser ◽  
Online Research ◽  
Obvious Effect ◽  
Furnace Slag

The existence and phase structures of high Ti-bearing blast furnace slag at a high temperature are the key issue to flow performance and reaction temperature. It is essential to evaluate the physical-chemical properties, such as viscosity and melting point In this work, a new method of online research of B2O3 on crystal behavior of high Ti-bearing blast furnace slag is proposed. By ultrahigh-temperature confocal laser scanning microscope and area scanning analysis, it can be concluded that the effect of B2O3 additives on the viscosity has a more obvious effect among the low-temperature region of the slag. Compared to the samples without B2O3 additives, the liquid phase of Ti-bearing slag with B2O3 additives appears earlier at the same experimental temperature, and the solid particles floating on the surface of liquid slag become less. Moreover, the B2O3 additives can promote the migration of titanium elements from the high melting point phase to the low melting point phase, and the transferring quantity increases with the addition of the amount of B2O3 additives. These results demonstrate that B2O3 additives can restrain the appearance of the perovskite phase, decrease the apparent viscosity, and promote the metallurgical properties of Ti-bearing blast furnace slag.

Cognition on the Molten Blast Furnace Slag Granulation Techniques in Contemporary China

2013 ◽  
Vol 634-638 ◽  
pp. 3118-3122
Author(s):  
Lin Li ◽  
Guang Xiao Ma ◽  
Dai Jun Wang ◽  
Ruo Yu Zang ◽  
Yong Qi Li
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Molten Slag ◽  
Waste Heat ◽  
Water System ◽  
Contemporary China ◽  
Bf Slag ◽  
Design Ideas ◽  
Furnace Slag ◽  
Slag Granulation

Introduce characters and applications of granulation techniques of the molten blast furnace slag in contemporary China, describe characters and design ideas of two types of granulation boxes, represent three types of circulating granulation water systems, put forward matching proposal between the molten slag granulation system and the circulating granulation water system, analyze contemporary research and problems of waste heat recovery of the molten BF slag.

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
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