Crystallization Behaviors of Blast Furnace (BF) Slag in a Phase
Numerical investigation on phase change cooling and crystallization of a molten blast furnace slag droplet. International Journal of Heat and Mass Transfer 2018 , 118 , 471-479. DOI: 10.1016/j.ijheatmasstransfer.2017.10.108.
Charlar en LíneaInvestigation of thermal properties of blast furnace slag
2017.4.15 This study revealed that the basicity of the blast furnace slag has direct effect on the melting interval of the slag as higher basicity increases the initial
Charlar en LíneaCrystallization behavior of blast-furnace slag by single hot ...
2020.1.21 Blast-furnace slags are usually processed by either the wet or dry method. The wet method is based on water quenching; however, this method wastes
Charlar en LíneaInvestigation of thermal properties of blast furnace slag to
2017.4.15 One of the steps in the iron making process is to heat the pig iron up to 1500 °C for the next phase of steel-making. In this process a significant amount of
Charlar en LíneaPhase Composition and Formation Mechanism of Slag
2020.6.18 In this study, the slag crust from a copper stave blast furnace was sampled, and the phase composition and structure of the
Charlar en LíneaSolidification with crystallization behavior of molten blast
2020.1.1 The blast furnace slag discharge reaching temperatures of 1450–1650 °C [1] is one of most significant wasted secondary energies still not reused [2]. Unlike other
Charlar en LíneaCooling and phase evolution of a molten blast furnace slag
2022.2.1 In the dry centrifugal granulation process to treat liquid blast furnace slag, it is critical to clarify the cooling and crystallization characteristics of slag particles, which
Charlar en LíneaInvestigation of Formation and Shedding Behavior of Slag
2021.4.5 The formation of a stable slag crust is crucial for the longevity of the copper stave. In this study, the flow properties and crystallization characteristics of the
Charlar en LíneaCooling and phase evolution of a molten blast furnace slag
2022.2.1 The treatment of liquid blast furnace (BF) slag, a by-product of the iron-making process, is one of the breakthrough points, since it contains a large amount of
Charlar en LíneaTwo-way Valorization of Blast Furnace Slag: Synthesis of
2017.2.21 Kuwahara Y, Ohmichi T, Kamegawa T, Mori K, Yamashita H. A novel conversion process from waste slag: synthesis of a hydrotalcite-like compound and
Charlar en LíneaOptimization of heat treatment of glass-ceramics
The optimum heat-treatment regime was obtained by orthogonal experimental results for glass-ceramics in which blast furnace slag comprised 70% of the composition and 1% Cr 2 O 3 and 4% TiO 2 were
Charlar en LíneaThermodynamics analysis and experiments on Ti-bearing blast furnace ...
2022.12.8 The potential-pH diagrams of the main components of Ti-bearing blast furnace slag (air-cooled slag) at 298.15 K (25 °C) and an ion activity of 1.00 were drawn by thermodynamic calculation. Thermodynamic analysis showed that the main metal components, when the Ti-bearing blast furnace slag is roasted with concentrat
Charlar en LíneaBlast Furnace Slag Addition Effects on Delayed Ettringite Formation
2018.1.8 Reducing expansion due to Delayed Ettringite Formation (DEF) is becoming an important issue that must be taken into account, when producing heat-cured concrete. Mineral additives used as partial cement replacement should help in achieving the desired aspect. Based on an ongoing experimental program, this research emphasizes
Charlar en LíneaCooling and phase evolution of a molten blast furnace slag
2022.2.1 1. Introduction. The steel industry as one of the most energy and carbon intensive industries, has attracted much attention in achieving the goals of carbon peak and carbon neutrality [1, 2].The treatment of liquid blast furnace (BF) slag, a by-product of the iron-making process, is one of the breakthrough points, since it contains a large amount
Charlar en LíneaWaste Heat Recovery from Blast Furnace Slag by Chemical
2012.7.31 Blast furnace (BF) slag is the main byproduct in the ironmaking process, which contains large amounts of sensible heat: about 400 kg per ton of blast furnace iron. The temperature of BF slag is about 1,773 K, and the enthalpy is about 1,700 MJ/ton. 1 Figure 1 shows the present situation of BF slag treatment. Traditionally, BF slag was
Charlar en LíneaNumerical investigation of breakup process of molten blast furnace slag ...
2020.9.14 Blast furnace slag (BFS) is the main by-product in ironmaking process. As its discharge temperature is between 1450 and 1550 °C, each ton of slag contains a large amount of high-quality thermal energy which is equivalent to 60 kg standard coal [1,2,3].Thus, there is a great potential for waste heat recovery from high-temperature
Charlar en LíneaThe Carbon Cost of Slag Production in the Blast Furnace: A
2016.2.5 The quality of raw materials (iron ore, coal, and coke) has a clear impact on the carbon emissions of the hot metal production in steel making. So far, very little work has been done to measure and quantify this impact. Yet for benchmarking, technology choice and general carbon optimization are important elements. The total slag production of a
Charlar en LíneaBlast Furnace Slag addition effects on Delayed Ettringite Formation
2018.1.8 Blast Furnace Slag Addition Effects on D elayed Ettringite Formation in Heat-cured Mortars Vol. 00, No. 0 / 000 0000 − 3 − test period (Leklou et al ., 2016).
Charlar en LíneaSolidification with crystallization behavior of molten blast furnace ...
2020.1.1 1. Introduction. Energy saving, waste heat recovery and emission reduction are primary goals of the iron and steel industry. The blast furnace slag discharge reaching temperatures of 1450–1650 °C [1] is one of most significant wasted secondary energies still not reused [2].Unlike other waste products, molten slag has two avenues of potential
Charlar en LíneaBlast Furnace Slag Addition Effects on Delayed Ettringite Formation
2018.1.8 Reducing expansion due to Delayed Ettringite Formation (DEF) is becoming an important issue that must be taken into account, when producing heat-cured concrete. Mineral additives used as partial cement replacement should help in achieving the desired aspect. Based on an ongoing experimental program, this research emphasizes
Charlar en LíneaInvestigation of thermal properties of blast furnace slag to
2017.4.15 There have been many attempts to recover the energy from slag for use as heat, electricity generation or fuel, but none of them has been commercialised yet (Baati et al., 2011).The reason for this is that the industry is more focused on quenching the slag and promoting the formation of glassy phases for use in cement rather than recovering
Charlar en LíneaEffect of H2 on Blast Furnace Ironmaking: A Review
2022.11.1 2. Effect of Hydrogen-Rich Smelting on Heat of Blast Furnace 2.1. Tuyere Raceway After H2 enters the BF from the tuyere, there is O2 in the tuyere area, H2 and O2 will undergo a combustion reaction and release heat. However, the generated H2O rapidly reacts with the carbon completely in the tuyere area to generate H2 again and absorb heat.
Charlar en LíneaThermodynamic Study on Modification of Converter Slag by
of Converter Slag by Using Hot Blast Furnace Slag Yuzhu Pan, Dajun Luo, Xiang Yuan, Pengcheng Zhang, Jingxin Wang, ... companies to make full use of the heat energy of BFS and increase the utilization ratio of CS. Research Methods ... blast furnace slag liquid phase formation are shown in formulas (1) and (2).
Charlar en LíneaBlast Furnace Slag Addition Effects on Delayed Ettringite Formation
AF. Blast Furnace Slag (BFS) used was ground to a specific surface of 400 and 500 m2/kg. The Chemical of cement and blast furnace slag used are shown in Table 1. X-ray diffraction patterns of BFS are shown in Fig. 1. Using Laser diffraction with a CILAS 1180L apparatus, the particle size distribution of OPC and BFS is shown in Fig. 2.
Charlar en LíneaBasics of slag production - Article on the slag industry from Global Slag
2011.10.27 Air-cooled Blast Furnace SlagThe simplest treatment of the liquid slag is to lead it into a slag pit where layers build up until the pit is full. When it has fully solidified and then cooled somewhat, the slag (commonly known as air-cooled blast furnace slag or ACBFS) is excavated and transported away for further treatment (such as magnetic
Charlar en LíneaA Comprehensive Review on the Ground Granulated Blast Furnace Slag ...
2022.7.18 With respect to the mechanical properties, durability and thermal behavior, ground-granulated blast-furnace slag (GGBS) delineates a rational way to develop sustainable cement and concrete. ... GGBS hydration contributes to heat formation at initial ages, indicating that the concrete is generating heat due to its hydration.
Charlar en LíneaCold experiment of slag centrifugal granulation by rotary
2017.1.25 Pickering et al. [12] designed a system to recover waste heat from blast furnace slag for the first time in 1985. ... Cold experiments on ligament formation for blast furnace slag granulation. Appl. Therm. Eng., 40 (2012), pp. 351-357. View PDF View article View in Scopus Google Scholar [15]
Charlar en LíneaThermal energy recovery from high-temperature blast furnace slag ...
2015.12.1 Aiming at the low heat recovery efficiency of granulated BF (blast furnace) slag, the concept of a two-stage system recovery waste heat from granulated BF slag was proposed. The principle of the two-stage system was low temperature biomass pyrolysis at 500 °C–700 °C and high temperature bio-oil reforming at 700 °C–900 °C.
Charlar en LíneaModeling of the molten blast furnace slag particle deposition on
2019.8.15 Technical analysis of dry granulation and sensible heat recovery of blast furnace slag. Ind Furnace, 34 (2012), pp. 8-11. Google Scholar [3] ... Submodel for predicting slag deposition formation in slagging gasification systems. Energy Fuels, 25 (3) (2011), pp. 1004-1009, 10.1021/ef101696a. View in Scopus Google Scholar
Charlar en LíneaBasic Oxygen Steelmaking Slag: Formation, Reaction, and Energy
2021.8.10 To recover the heat in blast furnace slag, an air-blast-based process was researched in the 1980s as a national project in Japan. [ 99 - 106 ] In this new approach, molten slag is atomized under centrifugal forces on a spinning disc, to produce fine droplets, which are quenched by air to produce glassy granules suitable for cement production.
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