Main Factors Affecting Static Holdup of Molten Slag in Coke-packed Bed
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In this paper, the authors verified that residual phenomenon of molten slag in the coke-packed bed was controlled by capillarity caused by immersion wetting, which was shown by dimensionless empirical formula considering balance between static pressure and that based on immersion work.Abstract:
Synopsis : Fundamental experiments under high temperature were carried out to clarify the dropping behavior and residual mechanism of molten slag in the lower part of blast furnace. According to the result of experiment, it was verified that residual phenomenon of molten slag in the coke-packed bed was controlled by capillarity caused by immersion wetting. Static holdup of molten slag was able to be shown by dimensionless empirical formula considering balance between static pressure and that based on immersion work. Void diameter affected the quantity of slag droplet that residued in graphite funnel, that is to say, the quasi-packed bed, and its residue was present only under critical void diameter. It is estimated that static holdup indicates almost zero under the condition that coke diameter in the deadman is more than about 20 mm.read more
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Effect of High Al2O3 Slag on the Blast Furnace Operations
TL;DR: In order to clarify the effect of high Al2O3 slag fluidity on the blast furnace, high MgO (20%) test operations of experimental blast furnace have been carried out as discussed by the authors.
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Kinetics of Carbon Dissolution of Coke in Molten Iron
TL;DR: In this article, the effect of temperature on the dissolution rate of carbon from coke in molten iron was investigated using a sampling technique in the temperature range of 1723 K to 1923 K (1450 °C to 1650°C).
Journal ArticleDOI
DEM-SPH study of molten slag trickle flow in coke bed
TL;DR: A fully-Lagrangian numerical model was applied for understanding packed bed structures containing non-spherical solids, such as coke, and the high-temperature melt trickle flow characteristics of such beds as discussed by the authors.
Journal ArticleDOI
Effect of High Al2O3 Slag on the Blast Furnace Operations
TL;DR: In order to clarify the effect of high Al2O3 slag fluidity on the blast furnace, high MgO (20%) test operations of experimental blast furnace have been carried out as mentioned in this paper.
Journal ArticleDOI
Characterization of Slag Flow in Fixed Packed Bed of Coke Particles
TL;DR: In this article, the static and dynamic holdups of liquid slag flow in a packed coke bed were investigated at a temperature of 1723 K by using the three-dimensional combined discrete element method and a computational fluid dynamics model.
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