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1 Blast Furnace Process. The blast furnace is a tall, vertical shaft furnace which has the purpose of heating and reducing iron oxides (hematite and magnetite) into hot metal which is basically a carbon-saturated silicon and manganese iron alloy with residual amounts of sulfur and phosphorus. A schematic representation of a blast furnace and ...
The ironmaking blast furnace (BF) is a very energy-intensive metallurgical process and the prime route for steel production, from which about 70% of the world’s steel consumption is produced (Geerdes et al., 2015). The BF system receives coke and ore solid raw material along with hot blast air and continuously produces hot metal as the main ...
Sep 1, 2023 · The process variables that are essential for controlling the internal thermal state, and the productivity, efficiency, and stability of the blast furnace process (Y ̲) include the hot metal silicon content ([S i]), the slag basicity (S B), the pressure drop (D P), the gas utilization factor (η CO, H 2), and the top gas temperature (T G).
Aug 1, 2023 · The blast furnace ironmaking process is the process with the most emissions process in iron and steel production process [26], [27]. However, there is little attention and research on LCA of blast furnace ironmaking process at present, so this study is carried out.
Oct 1, 2022 · The timely detection of abnormal blast furnace conditions and the analysis and diagnosis of the cause of the fault can enable the fault to be rectified in a timely and accurate manner, enabling the blast furnace to continue to produce good quality iron in a stable and safe manner, thus making a contribution to process safety and environmental protection.
Blast furnace gas is produced during the iron oxide reduction in blast furnace iron making in which iron ore, coke and limestone are heated and melted in a blast furnace and is an indigenous process gas of the steelworks industry (Pugh et al., 2013).
Sep 1, 2022 · Abstract. Hydrogen use in the blast furnace (BF) ironmaking process promises to mitigate the carbon footprint substantially. This paper presents a numerical study on the effects of hydrogen enrichment on the inner states and overall performance of a 380-m 3 industrial BF. This is done using a recently developed three-dimensional process BF model.
GGBS is obtained from the steel-making process when molten iron slag is quenched from a blast furnace in water to form granules and ground to specified fineness [41]. GGBS is commonly a self-cementitious and pozzolanic material as the typical composition consists of CaO, SiO 2 , Al 2 O 3 and MgO, which range about 30–42%, 35–38%, 10–18% and 5–14%, respectively.
Most blast furnace iron is the raw material for oxygen steelmaking, where the molten iron is refined to produce the world’s most popular metal for engineering applications—rolled steel. In this chapter, we review the steelmaking and casting processes that produce solid steel. Objectives are to describe: 1.
Jan 1, 2019 · Schematic illustration of pig iron and slag production process in a blast furnace. 518 Dervis Ozkan et al. / Materials Today: Proceedings 11 (2019) 516–525 3. Utilization of Slag Reutilization of industrial waste slags as industrial by-products through their recycling depends greatly on the slag properties and the heat treatment that the molten metal has undergone.
