Blast furnace slag is a solid by-product discharged in the process of iron making in metallurgical industry [23], [24]. ... The sand was a light color gneiss from the river sand of Cote d 'Ivoire, and its fineness modulus and crushing size were 2.5 and 5–25 mm, respectively. polycarboxylic acid water reducer of Sika was used in this work, and ...
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 ...
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 …
Molten blast furnace slag, which is rapidly quenched from the furnace, air-cools slowly to form . Where this granulated slag is further processed or ground, the product is referred to as ground granulated blast furnace slag (GGBFS). Approximately 300kg of slag are produced for each tonne of iron. The furnace operates on a continuous daily basis ...
Raw material crushing; raw mill; clinker calcination; clinker grinding; finished cement storage and paking; ... Slag, also known as granulized blast furnace slag, is a solid waste formed from gangue in ore, ash in fuel, and non-volatile components in solvents (usually limestone) during the ironmaking process in blast furnaces. ...
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.
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 ...
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 should be checked to verify that it is not prone to discoloration. While aging delays the discoloration and ...
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 …
Fan X, Zhang J, Jiao K, et al. Investigation on real slag characterization and slag evolution in cohesive zone based on dissected blast furnace. Fuel 2023; 342: 127780.
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 ...
Molten blast furnace slag is tapped from the furnace into ground bays where it air-cools to form a crystalline rock-like material. When cooled, the BFS is crushed and screened to ... Due to the vesicular*. physical structure of air-cooled slag, crushing produces a cubic shape with fewer misshapen particles than found in some natural aggregates ...
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 …
slag blast furnace furnace slag weight limestone Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number JP16268490A Other languages Japanese (ja ...
Ground granulated blast furnace slag (GGBS), a by-product of iron production in blast furnaces, is primarily composed of calcium silicates and alumino-silicates [30]. As a mineral admixture in MPC, GGBS can participate in the hydration reaction [ 31 ], resulting in a more compact microstructure [ 32 ] and improved mechanical properties, water ...
Blast furnace slag requires minimal processing to satisfy the physical requirements for use in embankments. Primary crushing is generally adequate to satisfy gradation requirements. …
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 ...
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, …
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 ...
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.
GRANULATED BLAST FURNACE SLAG (GBS) Blast furnace is an iron making unit which converts iron ore into molten iron through reduction reactions, in presence of coke and fluxes. In addition to molten iron, the furnace generates slags in …
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 …
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 ...
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 …
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 …
Iron and steel slag used in road construction is manufactured by crushing and mechanical stabilization of blast furnace slag and steelmaking slag for use as paving material. These two types of slag are used in base course materials that are produced from them individually or in a mixture, and steelmaking slag is used as an aggregate for asphalt ...
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 ...
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.
GGBS refers to ground granulated blast furnace slag, it also known as GGBFS, is obtained by quenching molten iron slag from a blast furnace in water or steam. As the name implies, the GGBS plant is designed to process blast furnace slag. ... Commonly used crushing equipment includes jaw crusher, impact crusher, cone crusher, and slag mobile ...
Blast furnace slag is a solid waste formed by gangue in ore, ash in fuel and nonvolatile components in solvent (generally limestone) in the process of blast furnace ironmaking. It mainly contains oxides of calcium, silicon, …
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 …
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 …
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 …
The process of crushing slag begins with the feeding of the slag into the Slag Crusher Machine. The machine crushes the slag to the desired size, and the crushed slag is then separated and removed from the machine. ... Blast furnace slag is a byproduct of the iron and steel production process. It is generated during the melting and refining of ...
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 …
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 …
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 …
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.