Blast furnace slag treatment
Comprehensive utilisation of blast furnace slag Taylor Francis
2023年7月21日 The performance of blast furnace slag treated by wind quenching is significantly better than that of water quenching slag, and the heat recovery rate is high, but the equipment required for production is large, the structure is complex, and the particle diameter distribution Blast furnace slag (BFS) is a secondary material generated during the process of producing iron in blast furnaces, prompting scholars to concentrate on its efficient management and broad Unlocking the potential: A comprehensive review on blast furnace In this article, a geotechnical assessment of blast furnace slag (BFS) properties is presented We conducted a series of CBR, and oedometric tests to evaluate the feasibility of BFS application Geotechnical and Environmental Assessment of Blast Furnace Slag Liquid blast furnace slag cooling regimes traditionally include aircooling, granulating (wet), expanding, and pelletizing, and result in four distinct types of blast furnace slag: aircooled Blast Furnace Slag an overview ScienceDirect Topics
Synergistic treatment of blast furnace slag and basic oxygen
2024年1月1日 Therefore, building on previous research, we propose a new synergistic process for treating industrial BFS and BOF slag to enhance iron recovery This study investigates the 2022年7月18日 With respect to the mechanical properties, durability and thermal behavior, groundgranulated blastfurnace slag (GGBS) delineates a rational way to develop sustainable cement and concrete Apart from A Comprehensive Review on the Ground Granulated The Inbar method (INBA) is a blast furnace slag treatment technology developed by PW, Luxembourg [6] The working principle of the Inbar method is that the slag flowing out of the Comprehensive utilisation of blast furnace slag Taylor Francis 2 天之前 In this study, granulated blastfurnace slag was treated by wet grinding to promote its reactivity (ie WGGBS), and carbide slag (CS), one kind of industrial wastes, was used as the Activation of ultrafine steel slag and ground granulated blast
From waste to waste: iron blast furnace slag for heavy metal ions
2022年3月31日 Blast furnace slag (BFS) is considered a cheap sorbent for the get rid of Co 2+ and Pb 2+ ions from aqueous media The nonmodified slag is characterized using Xray 2024年8月12日 This study investigates the influence of various types and dosages of sulfatic and alkaline activators on the performance of low emission supersulfated blast furnace slag Blast furnace slag supersulfated cements: composition 2021年1月12日 Blast Furnace Slag (BFS) is a byproduct of the iron ore processing industry with potential to be used in different industrial applications In this research, BFS was used to examine its ability for dye removal from Investigation of Dye Removal Capability of Blast 2021年11月28日 Blast furnace slag, which is the main byproduct of the ironmaking process discharged at 1450 °C, contains highquality sensible heat, while oily sludge is the main solid waste produced in the process of gas Effect of Oily Sludge Treatment with Molten Blast
Fine slag treatment and steam whitening system for blast furnace
At present, a slag treatment system of a drum method is widely applied in China and has the advantages of small occupied area, high vitrification rate, low water consumption and low slag water content; patent CN 08 discloses a blast furnace slag treatment apparatus, comprising: the slag melting tank is connected to the granulating tower, the tail end of the 2024年1月1日 In 2022, global crude steel production reached 1,885,738 million tons, marking increase of 02 % compared to 2020 [1]Basicity oxygen furnace (BOF) slag and blast furnace slag (BFS), as prominent solid wastes in the steel industry, have seen rising emissions, which negatively affects the development of the steel industry [2]Notably, the application of steel Synergistic treatment of blast furnace slag and basic oxygen furnace 2016年6月1日 However, blast furnace slag However, the slag treatment data has a wide range related to system manufacturing, operation and decommissioning Due to lack of data, the manufacturing and decommissioning stages are not taken into consideration for both water quenching methods and DSG methodEnergy–environment–economy evaluations of ScienceDirect2012年7月31日 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 treatmentWaste Heat Recovery from Blast Furnace Slag by Chemical
A Review of Granulation Process for Blast Furnace Slag
On the blast furnace slag treatment technology, for a long time, water quenching process has token the leading position However, there are many defects of waterquenching slag method, which can be roughly concluded as follow: a mass of sensible heat unrecovered, highTitaniumbearing blast furnace slag (BFS) has valuable compositions and potential environmental hazardousness Thus, developing efficient and green approaches to utilize BFS is highly desired for resource economization and environmental protection含钛高炉渣高效利用的最新进展 USTBThe potential for the use of waste products from a variety of sectors in water treatment processes Maebh A Grace, Mark G Healy, in Journal of Cleaner Production, 2016 32 Ground granulated blast furnace slag Ground granular blast furnace slag Ground Granulated Blast Furnace Slag ScienceDirect2018年1月1日 Blast furnace slag (BFS) which is defined “as the nonmetallic product consisting essentially of silicates and alumina silicates of calcium and other bases, that is developed in a molten condition simultaneously with iron in a blast furnace” by ASTM C 12516 (2016) has been widely used in construction industry for more than 80 years When the mixture of ironore, Blastfurnace slag ScienceDirect
Recent progress of efficient utilization of titaniumbearing blast
2021年6月30日 Titaniumbearing blast furnace slag (BFS) has valuable compositions and potential environmental hazardousness Thus, developing efficient and green approaches to utilize BFS is highly desired for resource economization and environmental protection In the past decades, many attempts have been adopted to reuse BFS efficiently, and significant advances SP = average compressive strength of slagreference cement mortar cubes at designated ages, MPa (psi) P = average compressive strength of reference cement mortar cubes at designated ages,MPa (psi) Table 1 shows the requirements of ASTM C989 for each grade of Ground Granulated BlastFurnace Slag TECH BULLETIN Ground Granulated BlastFurnace Slag:Ground Granulated BlastFurnace Slag: Its Chemistry and Use Liquid blast furnace slag is processed into ground granulated blast furnace slag and used in the cement industry, Byproducts from pickling, including iron oxide, iron(II) sulfate and iron(II) chloride, are used in wastewater treatment, the Using blast furnace slags sustainably thyssenkrupp 2022年3月31日 Inordinate levels of heavy metals in water sources have long been a matter of concern, posing serious environmental and public health risks Adsorption, on the other hand, is a viable technique for removing heavy metals from water due to its high efficiency, low cost, and ease of operation Blast furnace slag (BFS) is considered a cheap sorbent for the get rid of From waste to waste: iron blast furnace slag for heavy metal ions
Blast Furnace Ironmaking SpringerLink
2023年10月6日 Blast furnace slag is used in the form of water slag or dry slag in the manufacture of cement and other building materials slag iron treatment system, and dust removal system With the development of iron and steel industry, the body and auxiliary equipment of blast furnace are continuously improved in large scaleBlast furnace slag and combustion waste landfills are generally regarded as an environmental nuisance Impact on the Environment and Human Health, and Treatment with Conducting Organic Polymers, a Review Environ Sci Pollut Res 2020;27:29927–29942 doi: 101007/s11356020093543 [Google Scholar] 43 Geotechnical and Environmental Assessment of Blast Furnace Slag 2012年8月1日 PDF The effect of subbituminous coal treatment with molten blast furnace slag on the char properties was studied towards development of an Find, read and cite all the research you need on Study on effect of coal treatment with blast furnace slag on char 2022年2月26日 Blast furnace slag can be processed into the following materials by various processes In China, blast furnace slag is usually processed into water slag, slag gravel, expanded slag and slag beadsWater slag is the process of putting the hotmelt blast furnace slag into water for rapid cooling, which mainly includes slag pool water quenching or furnace front What is Blast Furnace Slag and How to Process It?
Physical and Chemical Characteristics of Blast Furnace, Basic
2000年3月18日 Approximately 21 million tons of steel industry slag are produced each year in the United States, and many productive commercial uses of slag have been developed (eg, road bed, fill material) However, because slag contains heavy metals at concentrations that are higher than in most soil, questions have been raised regarding the need to evaluate the potential 2020年10月8日 The optimum heattreatment regime was obtained by orthogonal experimental results for glassceramics in which blast furnace slag comprised 70% of the composition and 1% Cr 2 O 3 and 4% TiO 2 were Optimization of heat treatment of glassceramics made from blast 2021年2月11日 PDF Blast Furnace Slag dyes was investigated and results found that the optimal conditions for treatment of wastewater were 80 g/L of adsorbent dose and 1 h of treatment time for both dyesInvestigation of Dye Removal Capability of Blast On the blast furnace slag treatment technology, for a long time, water quenching process has token the leading position However, there are many defects of waterquenching slag method, which can be roughly concluded as follow: a mass of sensible heat unrecovered, highA Review of Granulation Process for Blast Furnace Slag
Highperformance glassceramics based on blast and arc furnace slag
2024年1月1日 Accordingly; on the handling procedure for the molten liquid slag, it exits the blast furnace as a molten liquid between 1400 °C and 1500 °C and can be found either as a granulated or crystalline structure [14, 15] The slag becomes crystalline, solid, grey, rocky material or dense slag when it is allowed to gently cool in the air2016年6月1日 Energy–environment–economy evaluations of commercial scale systems for blast furnace slag treatment: Dry slag granulation vs water quenching Author links open overlay panel Hong Wang a b, JunJun Wu b, Xun Zhu a b, Qiang Liao a b, Liang Zhao b Show more Add to Mendeley Share CiteEnergy–environment–economy evaluations of ScienceDirectCentrifugal granulationassisted thermal energy recovery (CGATER) remains the leading technology for the iron and steel industry to enable the lowcarbon treatment of hightemperature blast furnace (BF) slag Accurate knowledge of the thermophysical properties of BF slag is pivotal for the commercialization of the CGATERsteel research international Wiley Online LibraryThe chemical composition of a slag varies considerably depending on the composition of the raw materials in the iron production process Silicate and aluminate impurities from the ore and coke are combined in the blast furnace with a flux which lowers the viscosity of the slag In the case of pig iron production, the flux consists mostly of a mixture of limestone and forsterite or in some Ground granulated blastfurnace slag Wikipedia
Analysis of melting reconstruction treatment and cement
2020年6月23日 High temperature melting treatment and cement solidification are technologies currently used to reduce the leaching of heavy metals in municipal solid waste incinerator (MSWI) fly ash In this paper, to ascertain the feasibility of melting MSWI fly ash with blast furnace (BF) slag, ultrarisk MSWI(UMSWI) fly ash having high heavy metal (Zn, Pb, Cu, and Cr) contents Granulated Blast Furnace Slag Granulated blast furnace slag is a glassy granular material that varies, depending on the chemical composition and method of production, from a coarse, popcornlike friable structure greater than 475 mm (No 4 sieve) in diameter to dense, sandsize grains passing a 475 mm (No 4) sieveUGMat Blast Furnace Slag Recycled Materials Resource Center2024年1月10日 Molten titaniumcontaining blast furnace slag can be used to obtain cast stone materials by controlling a reasonable heat treatment system The material acquired during this process showcases residual stress, which additionally impacts the macroscopic characteristics of the material This article simulates the process of manufacturing microcrystalline cast stones Analysis and Mechanism Study of Residual Stress during the2018年11月7日 Blast furnace slag is furthermore classified into granulated blast furnace slag and aircooled blast furnace slag Granulated blast furnace slag is produced by quenching molten furnace slag with highpressurized water Blast furnace slags cooled in air constitute a crystallized material used as raw material instead of sand in the production of Treatments and Recycling of Metallurgical Slags IntechOpen
Selfhydration characteristics of ground granulated blastfurnace slag
2018年4月10日 Ground granulated blastfurnace slag (GGBFS) is mainly consisting of CaO, SiO 2 and Al 2 O 3In recent decades, the use of GGBFS as an alternative binding material (alkaliactivated slag, AAS) and partial replacement of cement has increased [13], [14]Nevertheless, the low strength development of cement based materials with GGBFS restricts its utilization in 2014年2月19日 The main hot stage slag valorisation processes were introduced to deal with slag granulation, metal recovery, and slag products quality In addition to the slag granulation process with pollution control and continuously dewatering (INBA™ process), several modified blast furnace (BF) slag granulation methods are currently being applied in ChinaCurrent Development of Slag Valorisation in China2024年3月4日 Blast furnace dust (BFD) is the solid powder and particulate matter produced by dust removal process in ironmaking industry The element composition of BFD is complex, and a direct return to sintering will lead to heavy metal enrichment and blast furnace lining corrosion In recent years, the application of BFD in wastewater treatment has attracted widespread Review in application of blast furnace dust in wastewater treatment 2024年10月8日 To utilize blast furnace slag in an environment friendly, economically efficient and high valueadded manner, this study successfully prepared glass–ceramics by directly using highbasicity blast furnace slag (R = 126) as raw material through lowpressure sintering method (80 kPa) This study examined the influences of particle size, heat treatment temperature and Preparation of Glass–Ceramics Using LowPressure Sintering
FUNDAMENTAL STUDY OF NEW TREATMENT PROCESS FOR TITANIFEROUS BLAST
A new treatment process for titaniferous blast furnace slag at Pangang using phase separation was put forward As the first part of the present work,the behavior of separation of molten substance from solid residues was examinedAccording to thermodynamical analysis and experimental determination,the main products of reaction between titaniferous slag and Na 2024年9月2日 The results showed that increasing the red mudblast furnace slag content and curing age significantly enhanced the unconfined compressive strength Furthermore, it suppressed the leaching of heavy metals in the solidified/stabilized soil Notably, the treatment effectiveness of Cu(II) and Zn(II) was superior to that of Cd(II) and Pb(II)Solidification/stabilization of composite heavy metals using red 2022年9月12日 This study investigates how thermal treatments (drying, hightemperature exposure, and autoclaving) affects the strengthening of compact based on microstructural analyses Compact is prepared from the powder of ordinary concrete incorporating blast furnace slag and iron and steel slag as aggregate substituting materialsEffect of thermal treatment on strengthening recycled compacted Aiming at the process of smelting ultrahigh (>80%) or even full vanadium titanomagnetite in blast furnace, we are conducting a series of works on physics character of high TiO2 bearing blast furnace slag (BFS) for slag optimization This work discussed the density and surface tension of high TiO2 bearing BFS using the Archimedean principle and the maximum bubble pressure Blast furnace ironmaking process with super high TiO2 in the slag
Preparation of GlassCeramic from TitaniumBearing Blast Furnace Slag
2018年2月1日 Blast furnace slag is the main byproduct discharged in the iron and steel industry and contains considerable waste heat at dischargeing temperature between 1450 and 1550 °C The reason for such twostage heat treatment of the glass is a consequence of the limited overlap between nucleation and growth rate curves 2019年12月9日 Li P, Yu Q, Qin Q, Lei W (2012) Kinetics of CO 2 /coal gasification in molten blast furnace slag Ind Eng Chem Res 51:15872–15883 CAS Google Scholar Li P, Yu Q, Qin Q, Liu J (2011) Adaptability of coal gasification in molten blast furnace slag on coal samples and granularities Energy Fuels 25:5678–5682Granulation and Heat Recovery from Metallurgical Slags