Determination of optimum blast furnace slag cooling rate for slag recycling in cement manufacture

2014 ◽  
Vol 42 (5) ◽  
pp. 395-400 ◽  
Author(s):  
Y. L. Qin ◽  
X. W. Lv ◽  
J. Zhang ◽  
J. L. Hao ◽  
C. G. Bai
Keyword(s):  
Blast Furnace ◽  
Cooling Rate ◽  
Blast Furnace Slag ◽  
Cement Manufacture ◽  
Furnace Slag ◽  
Slag Cooling

scholarly journals Granulation Effect Analysis of Gas Quenching Blast Furnace Slag with Different Basicities

Coatings ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 372
Author(s):  
Chao Liu ◽  
Yue Kang ◽  
Yuzhu Zhang ◽  
Hongwei Xing
Keyword(s):  
Blast Furnace ◽  
Cooling Rate ◽  
Amorphous Phase ◽  
Blast Furnace Slag ◽  
Formation Rate ◽  
Added Value ◽  
Effect Analysis ◽  
Bead Formation ◽  
Gas Quenching ◽  
Furnace Slag

High content amorphous phase blast furnace slag beads were prepared by gas quenching blast furnace slag (BFS), which could not only avoid a series of environmental problems caused by traditional water quenching methods, but also significantly increase the added value of BFS subsequent products. In this paper, the granulation mechanism of BFS and the amorphous phase formation mechanism of slag beads were studied by combining the physical properties of BFS and the granulation effect. The results showed that the viscosity of BFS decreased with the increase of basicity; the bigger the basicity, the higher the bead formation rate, the smaller the particle size and the more regular the slag shape. The smaller the basicity, the greater the crystallization activation energy and the smaller the Avrami exponent, which indicated that the crystal was more difficult to nucleate and grow. The increase of the cooling rate could effectively inhibit crystal precipitation. Therefore, the high basicity and cooling rate could not only guarantee the high bead formation rate of BFS, but also ensure the high content amorphous phase of slag beads.

The Impact of In Situ-Formed Spinel on the Porosity of No-Cement Refractory Castables

2017 ◽  
Vol 908 ◽  
pp. 139-144
Author(s):  
Lenka Nevřivová
Keyword(s):  
Corrosion Resistance ◽  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Corrosion Test ◽  
Corundum Refractory ◽  
Refractory Castables ◽  
The Impact ◽  
Furnace Slag

The paper focuses on the determination of how in-situ formed magnesia-alumina spinel (MA spinel) content in corundum refractory castables influences the final properties and pore size distribution of no-cement refractory castables. The motivation for this research was the continued pressure on increasing the utility properties of refractory castables, namely their corrosion resistance to blast-furnace slag. The influence of MA spinel content was observed in vibration-compacted refractory castables (three mixtures). The corrosion test was performed to determine the dependence of the size of the slag-penetrated area on MA spinel content in the specimen. The pore structure of a slag-penetrated NCC and an unaffected castable was described.

scholarly journals A Novel Technique for Determination of Flow Characteristics of Blast Furnace Slag

2012 ◽  
Vol 02 (02) ◽  
pp. 42-47 ◽  
Author(s):  
Supratik Dash ◽  
Nachiketa Mohanty ◽  
Upendra K. Mohanty ◽  
Smarajit Sarkar
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Flow Characteristics ◽  
Novel Technique ◽  
Furnace Slag
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