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Article
Analysis of All-Carbon Brick Bottom and Ceramic Cup Synthetic Hearth Bottom
One of the bottlenecks of the blast furnace (BF) campaign is the life length of hearth bottom. The basic reason for the erosion of hearth bottom is its direct contact with hot metal. According to the theory of...
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Article
“Redistribution” Effect of Lumpy Zone for Gas Flow in BF
The gas flow from tuyere to raceway zone by blasting involves three distributional zones, such as drip**, cohesive, and lumpy zone. The gas flow distribution in lumpy zone directly affects the gas utilizatio...
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Article
Analysis of effect of gas temperature on cooling stave of blast furnace
In order to study the effect of gas temperature variation on cooling stave, temperature, stress and displacement distributions of cooling stave were analyzed respectively when gas temperature inside blast furn...
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Article
Analysis of Vanadium-Bearing Titanomagnetite Sintering Process by Dissection of Sintering Bed
Many problems appear in the sintering process of vanadium-bearing titanomagnetite, such as high energy consumption and low productivity; sinter quality is also very poor for its low tumble strength and high re...
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Article
Inclusion Composition Control During LF Refining for SPCC Using FactSage Combined With Industrial Trials
Steel plate cold common (SPCC) is a Al-killed steel with Ca-treatment. The control of Al2O3 indusion into low melting point liquid region is beneficial for indusion removal, cast-ability promotion and defects red...
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Article
Effect of Coke Reaction Index on Reduction and Permeability of Ore Layer in Blast Furnace Lumpy Zone Under Non-Isothermal Condition
Reasonable control on CRI (coke reaction index) is one of the key factors for BF (blast furnace) low-carbon smelting. However, there are contrary opinions. One is increasing CRI to improve reaction efficiency ...
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Article
Effect of Chute Rotation on Particles Movement for Bell-less Top Blast Furnace
For the bell-less top blast furnace, when particles move along the chute, the particles’ motion direction and the frictional force acting on them will change due to the chute rotation, which consequently influ...
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Article
Characterics of Deoxidation and Desulfurization during LF Refining Al-killed Steel by Highly Basic and Low Oxidzing Slag
Steel and slag samples were taken at the start and the end of LF refining for steel plate cold common (SPCC), in the compact strip production (CSP) process, and at the same time, the temperature and oxygen act...
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Article
Hazard Control of NOx in Hot Stove
Hazard control of NOx is very important for the long life of hot stove shell and environmental protection NOx concentrations during different operation periods of hot stove were calculated according to thermodyna...
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Article
Critical heat flux of blast furnace hearth in china
The critical heat flux surveys of thirteen Chinese blast furnaces were carried out. The mathematical model of hearth bottom was established and the temperature field was simulated by utilizing the method of in...
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Article
Kinetic modeling on hot metal desulfurization with mechanical stirring
A kinetic model on hot metal desulfurization with mechanical stirring was established using FactSage Macro Processing. The sulfur diffusion in the molten steel and reactions at the interface between the molten...
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Article
In-situ observation and analysis of solidified structure evolution of S50C steel in soaking furnace
The evolution of solidified structure of S50C steel during heat treatment in compact strip production process was studied through an ultra-high-temperature confocal scanning laser microscope. It was found that...
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Article
Analysis of destructive effect of Zn on carbon brick and way of Zn into carbon brick
The service life of a blast furnace depends largely on the degree of damage to the carbon brick in the hearth. Carbon brick and ramming material in the hearth of a 1780 m3 blast furnace after shutdown were sample...