Effect of CO2 wet mineralized steel slag-granulated blast furnace slag
Effect of CO 2 wet mineralized steel slag-granulated blast furnace slag composite admixture on mechanical properties and chloride corrosion resistance of mortar. ... Utilization of super-hydrophobic steel slag in mortar to improve water repellency and corrosion resistance. J. Clean. Prod., 341 (2022), 10.1016/j.jclepro.2022.130783. Google ...
Steel plant slag dumps: A potential source of groundwater
Abstract The metallurgical processes in production of iron and steel from ores produce slags (blast furnace slag and basic oxygen furnace slag), which is usually dumped as solid waste by various steel plants around the world. The present study assessed and estimated the impact of slag dump piling up for the last 60 years on the hydrogeological environment in …
Steel Slag
Carbon dioxide sequestration using steel slag—modeling and experimental investigation. Smitha Gopinath, Anurag Mehra, in Carbon Dioxide Sequestration in Cementitious Construction Materials, 2018. 4.1 Introduction. Steel slag is an industrial waste that is generated during the production of steel. In the production of steel, oxides of metal impurities in the iron combine …
Research on the performance of asphalt mixture with acid-treated steel
The acid treatment can effectively improve the water absorption of steel slag, which is closely related to the research of the long-term swelling behavior of the mixture, and the tensile strength was improved, which may be due to the reaction between acetic acid and the surface of steel slag, making the surface of steel slag rougher, and ...
Long-term evolution of highly alkaline steel slag drainage …
Introduction. As a ubiquitous by-product of steel production, around 61 million tonnes (Mt) of steel slag is generated yearly worldwide. Over half of this (33 Mt per annum) is produced within the USA and Europe (Proctor et al. 2000; Motz and Geiseler 2001), with an additional 27 Mt from China and Japan (Shen and Forssberg 2003), and 1.2 Mt from Russia …
A low carbon embedded low water/binder cement-based …
A low carbon embedded low water/binder cement-based composites (LW/BCC) based on steel slag powder and microwave pre-curing: Experiments and Life Cycle Assessment (LCA) ... Both literature and practical experiments have shown that the time from microwave pre-curing to the sample explosion is approximately 250 s ...
Empirical analysis of a steam explosion in a slag yard based …
Many types of explosions often occur in industrial settings, and research is being conducted to identify the causes and establish preventive measures. The aim of this study is to …
Water + molten steel = Massive steam explosion
The explosion, along Karns Road just after 11 p.m., was caused by molten scrap metal hitting water at a work area outside of ATI's plant, commonly known as ATI-Allegheny …
Processing and Reusing Technologies for Steelmaking Slag
2. General Condition of Iron/Steel Slag 2.1 How iron/steel slag is produced As a by-product of the manufacture of steel from iron ore, iron/ steel slag originates from veinstone that is contained in the raw ma-terials (iron ore, coal, coke, etc.) and the flux that is added in the steelmaking refining process for removal of impurities (Si, P, S ...
Occupational Safety and Health Administration
The scull then spread out, and some of the molten slag may have trapped the standing water. There followed an explosion with heavy concussions, which caused the scull to …
Slag pit blast at East Chicago steel mill being probed
The explosion Sunday in a raw materials section of the sprawling Cleveland-Cliffs Indiana Harbor West mill on the Lake Michigan shoreline "was caused by rainwater meeting …
CALCIUM CARBIDE STEEL MAKING / SLAG …
Carbide Industries' steel making / slag conditioning grade calcium carbide reagents are granular sized materials used in the steel industry for specialized processing of steel. These products are added to liquid steel both during and after the melting stage. Product grades ranging from one inch (25.4 mm) down to one quarter inch (6.4 mm) are ...
AK Steel 'explosions' caused by slag contact with rain
Slag was being transported from AK Steel to a slag pit just south of Oxford State Road when it was dumped in rain water that caused "a louder than usual noise," Douglas …
Advantages and disadvantages of steel slag treatment …
Advantages: fast slag discharge, simple process, less land occupation, less investment, small size of steel slag after treatment (about 5mm), stable performance. Disadvantages: improper operation during water quenching of molten slag is prone to explosion, and the uniformity of steel slag grain size is poor. Can only handle liquid slag
Water + molten steel = Massive steam explosion
The explosion occurred at a work site along Karns Road where an ATI contractor was cleaning a slag pot that came out of the melt shop where the company melts scrap metal. "Some of the molten metal came in contact with water and that caused the explosion," Greenfield said. Even a relatively small amount of molten steel hitting water will ...
Fixing Water Leaks Over a Slag Pit in a Steel Mill
Water leaks over a slag pit in a steel mill can also create explosion hazards if the water comes into contact with the hot slag. When hot slag and water combine, it can create a steam explosion that can propel hot material and debris into the air, posing a significant safety risk for workers in the area. This can result in serious injuries or ...
Explosions involving water and molten metal Source …
A 1-tonne capacity electric induction furnace exploded inside a steel foundry without causing any casualties. The production loss was estimated at 400,000 francs per week of plant downtime.
Mechanism of Acid Mine Drainage Remediation with Steel Slag…
Besides, steel slag will contact water to form a hydroxylated M–OH group, which can react with the heavy metal cations to develop further complexes, removing the heavy metal ions in the wastewater. Duan et al. experimented on the removal of Cd 2+ in acidic aqueous solutions by alkali-modified steel slag.
Steel Slag Road Technology
Source: PIB. Why in News? The innovative Steel Slag Road technology developed by the Central Road Research Institute (CRRI), New Delhi in collaboration with the Ministry of Steel and major steel manufacturing companies is making significant strides towards the 'Waste to Wealth' mission.. This technology is revolutionizing road construction and addressing the …
What is Steel Slag?
About Steel Slag: Steel slag is an industrial byproduct obtained from the steel manufacturing industry.; It is produced in large quantities during steel-making operations that use electric arc furnaces. It can also be produced by smelting iron ore in a basic oxygen furnace.; Primarily, slag consists of calcium, magnesium, manganese and aluminium silicates and …
Vapor explosion in steel mill industries: Chemical …
The spontaneous vapor explosion occurs when a molten slag contacts with coolant. In this research, the molten slag which includes more than 10 chemical compositions …
Study of Toxicity Assessment of Heavy Metals from Steel Slag …
Moreover, the water damage resistance, as well as the stiffness and fatigue life of steel slag based asphalt mixture also improved due to the vesicular and pitted structure of steel slag [8,9,10]. Different from the conventional hot-mixed asphalt (HMA), an asphalt mixture with steel slag does not need to consume substantial fossil fuels and ...
Risk Factors of Vapor Explosion of Molten Slag in Slag …
On November 3, 2017, around 11:24 PM, molten slag (1500°C) exploded with a thunderous noise, causing a secondary fire in the slag yard of the Pohang Iron and Steel Company (POSCO) …
Steel Furnace Slag
Excessive dust generation may present a dust explosion hazard. 2.4. Unknown acute toxicity (GHS-US) ... Remove affected clothing and wash all exposed skin area with mild soap and water, followed by warm water rinse. ... Steel Furnace Slag Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and ...
Steel Slag
Steel slag, a by-product of steel making, is produced during the separation of the molten steel from impurities in steel-making furnaces. The slag occurs as a molten liquid melt and is a complex solution of silicates and oxides that solidifies upon cooling. ... The free lime in steel slags can combine with water to produce calcium hydroxide (Ca ...
Review Accelerated carbonation of steel slag: A review of …
Steel slag is a by-product of the steel production process, accounting for approximately 15% of the whole crude steel output [1].The accumulation of untreated steel slag not only occupies a significant amount of land but also leads to the leaching of heavy metal ions (such as vanadium, chromium, arsenic, lead, cadmium), polluting surrounding water sources …
High-temperature modification and air-quenching granulation of steel slag
2.1 Materials. Lack of the conditions of direct air-quenching of liquid steel slag, this experiment uses cooled steel slag as the raw materials (as shown in Fig. 1), which are firstly re-melted in a small DC arc furnace and then used for the air-quenching process.The raw materials in this experiment are untreated converter steel slag and water-quenched BF slag provided by …
Empirical analysis of a steam explosion in a slag yard based …
However, Steel mills directly spray cool water on slag yards because of spatial limitations and productivity to cool down. Due to the characteristics of explosion mechanism caused by contact between water and molten metal, it is difficult to prevent water vapor explosion itself from occurring during this cooling process. Therefore, we try to ...
Risk Factors of Vapor Explosion of Molten Slag in …
PDF | On Jun 4, 2020, Sungyool Bong published Risk Factors of Vapor Explosion of Molten Slag in Slag Yard for Steelworks | Find, read and cite all the research you need on ResearchGate
Electric Arc Furnace Steelmaking and Slag Formation, …
The growth of electric arc furnace (EAF) steelmaking in North America has occurred mainly in the past 40 years due to low electricity prices, an abundance of steel scrap (especially near large population centers), and the development of mini and macro steel mills based on metal recycling. Scrap availability and price has made steel produced by remelting in …