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Granulation and Heat Recovery from Metallurgical Slags ...

Dec 09, 2019· Steel spheres are added evenly over the surface of the liquid slag (Fig. 15) in the mould, which, due to their higher density, penetrate the slag surface. These steel spheres act as cooling media and absorb the latent heat of the slag. Due to the high contact area between the steel spheres and slag, the slag is cooled fairly quickly to ...

Granulated Blast Furnace Slag - an overview ...

Magnetic reseparation of the steel slag can improve the efficiency of intergrinding steel slag and the OPC clinker by about 50% compared with intergrinding OPC clinker and nonmagnetically reseparated steel slag. ... blast furnace operators will increasingly invest in rapid-cooling slag-handling equipment in order to increase the production of GBFS.

Steel manufacture - SteelConstruction.info

Steelmaking slag (BOF and EAF) is cooled similarly to aircooled BF slag and is used for most of the same purposes. As the production process varies at this stage depending on the type of steel being made, the resulting slags also have diverse chemical properties making them more difficult to use than ironmaking slags.

Development of Heat Recovery System from Steelmaking Slag

stainless steel, and its back side is equipped with spray nozzles for cooling. The slag used in this experiment is the slag obtained by the chromium ore smelting reduc-tion furnace. 2.2 Design of Cooling Rolls In order to study the optimum cooling roll structure, the …

Characteristics of steel slag under different cooling ...

Sep 26, 2006· Steel slag has a lower silica content than blastfurnace slag and, hence, steel slag seldom vitrifies even when rapidly cooled. Tossavainen et …

Study finds that steel slag heaps could absorb significant ...

Aug 25, 2019· Steel slag is a by-product of steel making and is produced during the separation of the molten steel from impurities in steel-making furnaces. The slag manifests as a molten liquid melt and is a complex solution of silicates and oxides that solidifies upon cooling. Several different types of steel slag are produced during the steel-making ...

Stabilization of Stainless Steel Slag via Air Granulation ...

Feb 08, 2019· Introduction. Argon oxygen decarburization (AOD) slag results from the production of stainless steel and is commonly dumped on to the ground and then slowly cooled through natural convection air cooling. AOD slag typically contains dicalcium silicate, Ca 2 SiO 4 (C 2 S), which is present in difference phases, as shown in Fig. 1.

Copper Cooling Equipments For Electrical Arc Furnace ...

Copper Cooling Equipments For Electrical Arc Furnace-Shantou Huaxing Metallurgical Equipment Co.,Ltd.-Huaxing Company provides the design, R&D and manufacture service of copper cooling equipments for lower electrode and furnace body of the large ferroalloy electrical arc furnaces (submerged arc furnac

EP1795616B1 - A steel slag treatment equipment by barrel ...

The present invention discloses an apparatus for slag treatment. A dual-cavity drum apparatus for treating slag supported by a mandrel comprises: left and right drums, a distribution disc, a mandrel and a feed hopper. In the apparatus, the distribution disc is placed between the left and right drums, the feed hopper is installed above the distribution disc, and a fixing ring below the ...

EP1792879A1 - A process and system for treating ultra fine ...

This invention relates to a process and system for treating ultra fine powder steel slag, which comprises: collecting the steel slag into a tank and carrying the tank onto a tipping device by a hoisting equipment; operating the tipping device to transport the steel slag to a granulating device and granulating the steel slag in the granulating device to form granulated slag; transporting the ...

Dry / Wet Slag Cooling Conveyor | General Kinematics

General Kinematics Dry Slag Cooling Conveyor eliminates popcorn slag, slag pans, and apron conveyors. With GK's Dry Slag System, slag is conveyed, cooled indirectly, …

Characteristics of steel slag under different cooling ...

Jan 01, 2007· The re-melted slags, which were left to cool in the crucibles (semi-rapid cooling), resulted in large pieces that were crushed to <4 mm for leaching tests.The water-granulated material of the BOF slag, the EAF slag 1 and the EAF slag 2 consisted of granular particles, 2–4 mm.During the rapid cooling process the ladle slag reacted with water to produce a volumetric stable, brittle and porous ...

Systems Spray-Cooled Delivers Equipment to Nucor Steel ...

The Spray-Cooled™ equipment will include of Nucor's on furnace cooling needs, to include the EAF shells, roofs, and fume elbows. The EAF sidewall will incorporate a unique proprietary profile that includes integrated 'bump-outs' to help protect the burners and refractory bricks and reduce scrap jams at the slag door opening area.

SAFETY GUIDELINES FOR IRON & STEEL SECTOR BLAST …

vi) Slag Granulation Plant (SGP) / Slag Dumping Yard: During the process of iron making, the impurities are fluxed and removed as slag. The hot liquid slag is made into slag granules by means of high pressure water jets in the Slag Granulation Plant in the Cast House itself (sometimes separate SGP is located at a distance from the furnace proper).

24 TESTING & ANALYSIS Improving slag detection

STEEL slag, a molten liquid melt of silicates and oxides, is a by-product of the steel-making process, which is produced during the separation of molten steel from the impurities that are found in iron ore and scrap metal. The slag solidifies upon cooling. Slag needs to be removed as its impurities degrade steel. For example, slag will pull

Development of Continuous Steelmaking Slag Solidification ...

a cooling roll, shape control roll, conveyor, and sensible heat recovery equipment mounted on a platform truck. The cooling roll and shape control roll were equipped internal water cooling. The water flow rate was 80 L/min. Figure 2(a) shows the method of controlling the slag solidification thickness. The solidification thickness is adjusted by the

Steel Slag Cooler manufacturers & suppliers

We've designed our quotation process to be simple and straightforward. Simply go to our "request a quote" page and fill out the short web form, like Product Name (Steel Slag Coo

Steel Slag - Material Description - User Guidelines for ...

Mar 08, 2016· Virtually all steel slags fall within these chemical ranges but not all steel slags are suitable as aggregates. Of more importance is the mineralogical form of the slag, which is highly dependent on the rate of slag cooling in the steel-making process. Table 18-2. …

Types of iron and steel slag : NIPPON SLAG ASSOCIATION

In the same way as air-cooled blast furnace slag, converter slag is cooled slowly by natural cooling and water spray in a cooling yard. It is then processed and used for various iron and steel slag (converter) applications. Approximately 110 kg of slag is generated for each ton of …

Steel Slag - an overview | ScienceDirect Topics

Steel slag can also be produced by smelting iron ore in a basic oxygen furnace. According to methods for cooling molten steel slag, steel slag is classified into five types: natural air-cooling steel slag, water-spray steel slag, water-quenching steel slag, air-quenching steel slag, and shallow box chilling steel slag [47,48].

Dust Control for Steel & Slag Processing | BossTek

The presence of dust during steel manufacturing and recycling can create unnecessary headaches for operators as well the surrounding community. Fugitive dust particles become airborne as slag is tapped into ladles, transported and dumped into cooling …

BAOSTEEL BSSF TECHNOLOGY FOR SLAG PROCESSING

1 Better separation between slag&steel cooling steel slag Steel separated by vibrating screen. PRODUCTS & SOLUTIONS 2 Distribution of Grain Sizes of Granulated Slag 10.5 13.7 58.7 14.1 3.0 0 10 20 30 40 50 60 70 ... Pipeline equipment is easy to scale Valve impeller is easy to corrosion. PRODUCTS & SOLUTIONS Steel slag resource utilization Tail ...

Three-Stage Method Energy–Mass Coupling High-Efficiency ...

Jun 14, 2021· High-temperature molten steel slag is a large amount of industrial solid waste containing available heat energy and resources. This paper introduces an efficient and comprehensive utilization process of high-temperature molten steel slag. The waste heat energy in the high-temperature molten steel slag can be fully recovered through the three-stage heat exchange. Through mass balance and …

National Slag Association Iron and Steel Slag Products ...

Since 1918, The NSA has promoted the use of Blast Furnace and Steel Furnace Slag. Blast Furnace slag has been called the "All-Purpose Aggregate" as it can be...

Custom Dust and Odor Solutions & Accessories | BossTek

DUST CONTROL SYSTEM ADD-ONS. Our accessories are all customer-driven innovations to continually improve the best dust control equipment in existence. From adjustable throw distance to chemical water flow injection, our accessories are designed to meet your unique needs.

The general introduction of the technology used in the ...

The storage and transport of the wet slag/steel slag: the wet slag/steel slag is transported to factory by truck and storage hall through discharge hopper and belt conveyor. Re-taken away by the forklift, the material is conveyed to slag/steel slag vertical mill directly via belt conveyor after weighed by …

AISI | Electric Arc Furnace Steelmaking

of the steel and into the slag. In modern EAF operations, especially those operating with a "hot heel" of molten steel and slag retained from the prior heat, oxygen may be blown into the bath throughout most of the heat. As a result, some of the melting and refining operations occur simultaneously.

UG-Mat Steel Slag | Recycled Materials Resource Center

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. Virtually all steel is now made in integrated steel plants using a version of the basic ...

EAF Shells / Sidewalls - Systems Spray-Cooled

Learn More » Spray-Cooled™ Equipment FACILITATES OPERATIONAL FLEXIBILITY SYSTEMS Spray-Cooled™ equipment is easily modified to meet the changing needs of a modern steel shop, such as the addition, removal, relocation, or modification of burners, slag tunnels, charge holes, inspection ports, process openings etc. without the need for costly ...

Steel slag processing equipment recommended - ...

Sep 27, 2019· 3. Steel slag in the application of glass-ceramics, environmental engineering, agriculture, burn-free bricks, foundry sand, etc. Steel slag processing equipment recommended. According to the characteristics of steel slag and the requirements of finished products, it can be processed by crushing and screening equipment, iron removal equipment ...