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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...
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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
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
Open AccessDetermination of non-metallic inclusions in a continuous casting slab of ultra-low carbon interstitial free steel by applying of metallographic method, electrolytic method and RTO technique
Metallographic, electrolytic method and RTO(room temperature organic) technique were applied in the present study to more accurately determine non-metallic inclusion in a ultra-low carbon interstitial free(IF)...
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Article
Novel mechanism for the modification of Al2O3-based inclusions in ultra-low carbon Al-killed steel considering the effects of magnesium and calcium
Many researchers have explored the inclusion modification mechanism to improve non-metallic inclusion modifications in steelmaking. In this study, two types of industrial trials on inclusion modifications in l...
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Numerical Simulation of the Copper Steel Composite Stave Heat Transfer in the Belly and Lower Shaft Region of the Blast Furnace
A numerical model was developed to simulate the three-dimensional heat transfer in the belly and lower shaft region of the blast furnace wall consisting of copper steel composite stave, packing and shell. The ...
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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
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
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
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
Erratum to: Mathematical model of burden distribution for the bell-less top of a blast furnace
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Article
Mathematical model of burden distribution for the bell-less top of a blast furnace
Due to the difficulty in measuring the burden trajectory directly in an actual blast furnace (BF), a mathematical model with Coriolis force and gas drag force considered was developed to predict it. The fallin...
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Article
Study on the early warning mechanism for the security of blast furnace hearths
The campaign life of blast furnace (BF) hearths has become the limiting factor for safety and high efficiency production of modern BFs. However, the early warning mechanism of hearth security has not been clea...
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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
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
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
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
“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 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...
