In other countries, it is widely known as blast furnace because of the use of blower in production. The blast furnace can also produce ferromanganese and ferrosilicon needed for steelmaking. The main product of blast furnace ironmaking is pig iron, and its by-products are blast furnace slag and blast furnace gas.
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Researchers pro- moted various techniques for slag granulation, such as mechanical crushing method [7,8], air blast method [3,9] and centrifugal gran- ulated method [10,11].
Basically, the blast furnace is a countercurrent heat and oxygen exchanger in which rising combustion gas loses most of its heat on the way up, leaving the furnace at a temperature of about 200° C (390° F), while descending iron oxides are wholly converted to metallic iron. Process control and productivity improvements all follow from a consideration of these …
Abstract In the process of centrifugal granulation of molten blast furnace slag based on spinning cups,under the centrifugal force exerted by the spinning cup,the molten slag deforms into a liquid film on the inner wall surfaces of the cup. The thickness of the slag film at the edge of the spinning cup will directly dominate the size of the ...
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Primarily designed for the purpose of grinding, this plant is capable of processing a wide range of materials, including limestone, raw meal, slag, nickel slag, manganese slag, cement, ground granulated blast-furnace slag (GGBS) powder, fly …
Deposits of old blast-furnace slag are an environmental problem. The slag's hardness is an important for calculation of the energy cost for crushing and grinding process.
The current review examines the use of various slags, including cupola slag, electric arc furnace slag (EAFS), steel furnace slag (SFS), and ground granulated blast furnace slag (GGBFS) in the development of sustainable construction materials considering the potential of such waste in greener concrete composites towards eco …
Slag, also known as granulated blast furnace slag, is a by-product of blast furnace ironmaking, usually in the form of light gray crystals. It has always been classified as industrial waste slag with high potential activity and hydraulic properties.
Steel slag crushing production line adopts jaw crusher for primary crushing, and uses hydraulic cone crusher for secondary and tertiary crushing, offering high crushing efficiency, low wear, energy saving and environmental protection, it has the features of high automation, low operation cost and reasonable allocation of equipment.
Redox reactions are involved in the extraction of metals from their ores, eg extracting iron by reduction within the blast furnace. Transition metals have high melting points and densities, form ...
Anthracite, lignite, etc. are employed as carbon resource materials and added into the electric furnace to carbonize the titanium in titania-bearing slag, and TiC or Ti (C, N) is therefore produced at temperatures from 1600°C to 1800°C 40 under a controlled atmosphere. Li et al. 41 studied the carbonization of titanium-bearing blast …
Synonyms: Air Cooled Slag, Blast Furnace Slag, Granulated blast furnace slag (GBFS), Granulated Slag, Ground Granulated Blast Furnace Slag (GGBFS), Hydraulic Slag Cement, Lafarge Slag, LitexTM Lightweight Aggregate, Metallic Slag, NewCem®, Pelletized Slag, PROCEM®, Slag Cement, True Lite Lightweight AggregateTM, …
The influ-ence of temperature and the change of slag composition were also discussed. It is imperative to understand the corrosion mechanisms of ceramic cup to prolong the blast furnace campaign.
Add blast furnace slag and other materials to make building bricks. Due to the higher hardness and better wear resistance of steel slag compared to other building aggregates, bricks made from steel slag also have the characteristics of good wear resistance and high strength.
Discover the high-efficiency GYP series inertia cone crusher, designed to optimize steel slag fine crushing and improve iron metal recovery rates. Learn how different crushing equipment like jaw crushers, roller crushers, and hydraulic cone crushers contribute to the process, and how the GYP series stands out with its universal joint flexible transmission …
It was shown that the net reduction of CO 2 emissions amounted to 36 kg for 1000 kg of blast furnace slag processed. The results demonstrated in this study can act as guidance for pilot- or industrial-scale applications of indirect CO 2 mineral sequestration technologies, especially for process parameter optimization and equipment design.
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Molten slag is broken up by supersonic air into droplets through the air quenching dry slag granulation technique. The breakup process of blast furnace slag directly determines the droplet diameter and the waste heat recovery. In order to gain deep insight into the granulation mechanism and visualize the breakup process, three …
In order to overcome the environmental pollution caused by traditional water-quenching slag treatment and recover a large number of waste heat from blast furnace slag (BFS), the dry granulation pro...
Blast furnace slag is a byproduct of iron and steel production, whose physicochemical characteristics are influenced by the type of production process applied.
Granulated blast-furnace slag is produced by using water to rapidly cool molten slag. This type of slag is sold as a raw material for cement in Japan and overseas.
3) Blast furnace slag can be used as an alternative binder to cement in road construction applications due to its slow setting properties, improving workability during application and long-term strength development.
Ground granulated blast furnace slag produced by pulverizing granulated blast furnace slag is mixed with Portland cement to produce Portland blast furnace slag cement. Portland blast furnace slag cement is economical and environmentally friendly because it conserves resources and energy, leading to reduction in CO 2 emissions.
Ladle furnaces at Evraz Nizhnii Tagil Iron and Steel Works OJSC produce over 90,000 metric tons of slag per year. As this slag cools, it turns into a fine-grained powder; if the powder cannot be sold, it is temporarily stored until it can be disposed of [1]. We have considered producing easily used flux sinter from the slag generated during …
This study investigated chemical, physical-mechanical and environmental characteristics of weathered blast furnace slag (WBFS) and freshly produced slag (FBFS) for their potential utilisation as granular road base and subbase aggregates.
Blast furnace, as traditional and excellent Lead smelting furnace, can be applied to process materials with high moisture content (8% max) and well-adaptable to different feed materials such as oxide ore, dust, carbonate ore, and so on.
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