Numerical Simulation and Experimental Study on Centrifugal …
Using centrifugal granulation technology to recover energy from blast furnace slag efficiently is the direction of metallurgy industries for realizing sustainable development.Influences of operation parameters such as diameter,depth and speed of rotating disk and mass flow rate of slag on the atomization need to be studied for getting specific slag diameter.A 2-D fluid flow VOF model …
Mechanical and GWP assessment of concrete using Blast Furnace Slag
Ground Granulated Blast Furnace Slag (GGBS) and Silica Fume (SF) are by-product pozzolanic SCMs. ... with a long reach 360 excavator to 250 mm maximum size and supplied to a J-1170 mobile jaw crusher for further crushing. The jaw crusher utilised powerful magnets to collect ferrous metals such as reinforcement bars. The demolition ...
CN110779339A
The invention provides a blast furnace slag crushing and waste heat recovery system, which can process blast furnace slag and crush the slag in a high-temperature semi-molten state. This device utilizes the differential gear train of planet to form the damaged circle of two rotational speeds differences, recycles the interact of inside broken circle and outside broken circle, and …
Dephosphorisation behaviour of blast oxygen furnace (BOF) slag …
As one of the by-products in the steel industry, granulated blast furnace slag (GBFS) is widely used as an aggregate or a pozzolanic material (a partial replacement for Portland cement) in the ...
Granulated Blastfurnace Slag
Molten iron and slag are drawn off at regular intervals from tap holes at the base of the furnace. The quenching of this liquid slag with an excess of water (granulation), air and water …
Comprehensive utilisation of blast furnace slag
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 …
Treatment and characterisation of electric arc furnace (EAF) slag …
The blast furnace slag after granulation, is consumed by the neighbouring Indorama Cement Ltd, in the manufacture of Portland Slag cement and GGBFS conforming to BS-6699. The steel slag after crushing is partly recycled through a sintering plant. Though the plant is working towards a zero-waste management concept, the remaining quantity of ...
Synergistic preparation of geopolymer using electrolytic …
Electrolytic manganese residue (EMR) is an acidic waste slag produced during the electrolysis of manganese metal by electrolysis method, and its main components are SiO 2, Al 2 O 3 and CaSO 4 –2H 2 O, which have the characteristics of high water content, high viscosity and low reactivity [10].EMR contains a large number of harmful components including …
CO2 mineral sequestration by using blast furnace slag: …
CO 2 mineral sequestration is a promising strategy to combat global warming. Indirect CO 2 mineral sequestration was proposed in our previous study by using blast furnace slag as feedstock. As the continuity of this research, the continuous experiment process was carried out in a self-designed rotary kiln, and the results were compared with those of the …
Blast Furnance Slag
Blast furnace slag requires minimal processing to satisfy the physical requirements for use in embankments. Primary crushing is generally adequate to satisfy gradation requirements. …
Production and recycling of blast furnace slag: A life cycle …
This article investigated the cradle-to-gate environmental impact of granulated blast furnace slag (GBFS) produced in the steel industry and replacement of blast furnace (BF) …
Selective crushing, enrichment by friction properties and
When smelting each ton of pig iron, approximately 500 kg of blast-furnace slag is formed and requires recycling. Air-cooled blast-furnace slag can be used for the manufacture of slag aggregate for ...
blast furnace slag
integral part of this production process (such as crushing to get the appropriate particle size). eur-lex.europa.eu. eur-lex.europa.eu. ... slag, wherein after being tapped from the blast furnace and before further processing a material is added to the liquid blast furnace slag, which contains at least one material selected from the group CaO, ...
Blast Furnace Slag Granulation at the Cast House – IspatGuru
Fig 4 Schematic diagram of a slag granulation plant. Granulation section – Here, the liquid BF slag is water quenched and solidified into small particles, eliminating the need for heavy crushing equipment. The liquid slag flows by runners from the BF to the granulation unit. From the runner, the liquid slag stream at around 1,500 deg C is poured into a high velocity …
Blast Furnace Slag
After cooling to 93°C (200°F) or lower, the slag is transported to a plant for crushing and screening to a size appropriate for concrete use (Dobrowolski, 1998). Air-cooled blast furnace …
Blast Furnace Slag Filter Media | Water Filtration
Blast Furnace Slag Filter Media. Description. The raw Blast Furnace Slag material is a by-product of the iron making industry and comes from the iron blast furnaces. Iron ore, limestone and coke are fed into the blast furnace where they reach a temperature of about 1500°C and the raw materials are reduced to molten iron and blast furnace slag.
JPH0466141A
PURPOSE:To upgrade crushing capability remarkably while maintaining the product grain size almost the same, reduce the original unit of electric power and enhance product efficiency by crushing a raw material after being crushed by a roll press as a preliminary crusher, and then crushing the same by a main crusher. CONSTITUTION:A crushing device consists of a …
blast furnace slag crushing plants
Based on the literature [2,3,4,5,6,7,8,9,10,11,12], each production process is characterized by different slag to steel output ratios: 250–300 kg of blast furnace slag per ton of pig iron produced, 120–180 kg of basic oxygen furnace and electric arc furnace slags per ton of steel produced, and 30–80 kg of ladle furnace slag per ton of ...
Comprehensive utilisation of blast furnace slag
Introduction. China is the world's largest steel producer, with the China Iron and Steel Association estimating that the country's crude steel production in 2022 will be 935 million tonnes [Citation 1].Steel slag mainly refers to the blast furnace slag and converter slag produced in the process of iron making and steel making, and with the increase of steel …
Application of iron and steel slags in mitigating greenhouse …
Blast furnace slag (BFS) and steel slag (SS), collectively called iron and steel slags, are the main by-products of steelmaking. The economical and efficient use of iron and steel slags to reduce greenhouse gas (GHG) emissions is an urgent problem to be solved. ... Compared with mechanical crushing and blast granulations, centrifugal ...
Effect of high titanium blast furnace slag on preparing …
glass–ceramics for sound absorption were fabricated via a single-sintering method with high titanium blast furnace slag (HTBFS) and waste glass as the main materials. This study investigated the effects of HTBFS content on the microstructure and properties of glass–ceramics. The results show that the main phases of the sintered samples are diopside, …
UG-Mat Blast Furnace Slag | Recycled Materials …
Crushing Blast furnace slag requires minimal processing to satisfy the physical requirements for use in embankments. Primary crushing is generally adequate to satisfy gradation requirements. Quality Control Leachate from the material …
Recent progress of efficient utilization of titanium-bearing …
Titanium-bearing blast furnace slag (BFS) has valuable compositions and potential environmental hazardousness. Thus, developing efficient and green approaches to utilize BFS …
Creating new value of blast furnace slag as soil amendment …
Blast furnace slag (BFS), a by-product of iron-making process, is mainly composed of silica and alumina from the base material (primarily iron ore) and calcium and magnesium oxides from the additives (Piatak et al., 2015).BFS is classified as non-hazardous waste (Proctor et al., 2000) and has been utilized for the construction of roads as a filling …
Production process of blast furnace slag micropowder
Blast furnace slag, a byproduct of iron and steel production, has gained considerable attention for its potential use as a supplementary cementitious material. The production of slag micropowder involves a series of processes that convert this industrial waste into a valuable and versatile product. ... - Secondary Crushing: The crushed slag is ...
Blast furnace slag
After crushing and screening, air-cooled blast furnace slag (ABS) provides an eminently suitable material for use as a construction aggregate in bound or unbound form, like any natural rock. Granulated blast furnace slag (GBS) exhibits cementitious properties and is thus used as hydraulic binder for cement, concrete, mortar and grout.
Duquesne Air Cooled Blast Furnace Slag | Holcim US
Blast Furnace Slag is produced to meet state specifications for gradation and other key requirements. The American Society of Testing and Materials (ASTM C-125, Definition of Terms Relating to concrete and concrete Materials) defines Blast Furnace Slag as "the non-metallic product consisting essentially of silicates and aluminosilicates of calcium and other bases, that …
Recovery of metals from melting furnace slag
The most effective means for the recovery of metals … Molten slag may be fed directly to the 5.6 MVA furnace from a pre-melting … When treating furnace slag …
Efficient Steel Slag Processing | Senya Crushers Solution
Steel Slag Crushing Process. Raw material (less than 350mm ) will be conveyed to vibrating feeder, grate of vibrating feeder is set to 100mm, material with size less than 100mm(from vibrating feeder) will be conveyed to cone crusher, material with size larger than 100mm will be conveyed to jaw crusher for primary crushing.
Waste heat recovery of blast furnace slag considering …
BFS (Blast Furnace Slag) constitutes the primary solid co-product of the steel manufacturing process. In the Blast Furnace-Basic Oxygen Furnace process, each ton of crude steel yields approximately 275 kg of BFS [1].From an energy perspective, BFS can be discharged at temperatures up to 1550 °C [2], containing a substantial amount of sensible heat resources.