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Theoretical analysis of free-surface film flow on the rotary

Request PDF | On Feb 1, 2014, Dongxiang Wang and others published Theoretical analysis of free-surface film flow on the rotary granulating disk in waste heat recovery process of molten slag | Find ...

Energy recovery from high temperature slags

The only documented study on recovery of slag heat through coal gasification is a materials-energy balance analysis by Li et al. [69] ... Dry granulation of molten blast furnace slag in granulating mills (TrockeneKoernung von fluessigerHochofenschlacke in Granuliermuehlen) Stahl und Eisen, 50 (51) (1930), pp. …

Dry Slag Granulation

T1 - Dry Slag Granulation - Investigations on the Behaviour of Liquid Blast Furnace Slag in Combination with Heat Recovery. AU - Kofler, Markus. N1 - no embargo. PY - 2014. Y1 - 2014. N2 - Blast furnace slag is well known as by-product of hot metal production in integrated steel and iron mills.

Research status of centrifugal granulation, physical heat …

The molten blast furnace slags, a kind of main by-product in Iron and Steel industry, contains a substantial amount of high-grade thermal energy and untapped …

Heat recovery in dry granulation of molten blast furnace slag …

In a research and development project undertaken jointly between Ishikawajima-Harima Heavy Industries Co. and Sumitomo Metal Industries, Ltd., a process has been developed for granulating molten slag discharged from blast furnaces, to produce granules utilizable as fine aggregate in the preparation of concrete, while at the same time ensuring …

SLAG TREATMENT IMPROVEMENT BY DRY GRANULATION

CSIRO has been working on a dry granulation process, integrated with heat recovery, since 2002. It involves a rotary disc that atomizes molten slag to produce liquid droplets, which are rapidly…

Current Status of Heat Recovery from Granulated Slag

Current Status of Heat Recovery from Granulated Slag. Shaghayegh Esfahani, Shaghayegh Esfahani. Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Canada M5S 3E4. Search for more papers by this author. Mansoor Barati, Mansoor Barati.

Dry slag granulation with integrated heat …

Junxiang et al. (2015) used water as the heat transfer medium to recover (300 to 700 °C) slag waste heat by a tubular heat exchanger to obtain more than 55% waste heat recovery efficiency with a ...

Experimental investigation on granulation characteristics and …

DOI: 10.1016/j.applthermaleng.2020.116295 Corpus ID: 228883896; Experimental investigation on granulation characteristics and waste heat recovery of molten slag in gas quenching dry granulation technique

Development of Molten Slag Dry Granulation and Heat Recovery in …

The steel industry is an energy-intensive and CO2-intensive industry and the greenhouse gas (GHG) emission in the steel industry was more than 2.95 billion tons in 2012, which faces the great…

Centrifugal-Granulation-Assisted thermal energy recovery …

One important goal, along with heat recovery from molten slag, is to attain good hydraulic reactivity of the final slag granules from CGATER process. It is …

Waste heat recovery of blast furnace slag in moving bed: …

To recover the heat, a new waste heat-recovery system—granulating molten BF slag by rotary multinozzles cup atomizer and pyrolyzing printed circuited board with obtained hot BF slag particle ...

Granulation characteristics of molten blast furnace slag …

1. Introduction. Molten blast furnace (BF) slag is one of the main by-products in the iron-making process, and has a yield of 300 kg/t-pig iron [1].The heat contained in molten BF slag (1500 °C) reaches up to 1600 MJ/t.Globally, the production of pig iron was nearly 1153 million t in 2015 [2], and about 345.6 million t of BF slag were produced.The …

Waste Heat Recovery from Blast Furnace Slag by Chemical …

Blast furnace (BF) slag, which is the main byproduct in the ironmaking process, contains large amounts of sensible heat. To recover the heat, a new waste heat-recovery system—granulating molten ...

CFD Simulation on Dense Gas-Solid Flow for Blast Furnace Slag …

In order to recover efficiently the rich heat released from 1450℃ blast furnace slag in the fluidized bed, we find the best control parameters by seeking the relationship among the control ...

Granulation and Heat Recovery from Metallurgical Slags

In this paper, the slag granulation and heat recovery options are reviewed and given a critical evaluation, aiming to provide a basis for future directions in slag handling. Metallurgical slags are produced at a massive rate of over 750 Mt/year, and carry a thermal energy equivalent to 40 …

Research status of centrifugal granulation, physical heat recovery …

Dry granulation of molten blast furnace slag in granulating mills (TrockeneKoernung von fluessigerHochofenschlacke in Granuliermuehlen) ... Centrifugal granulation performance of liquid with various viscosities for heat recovery of blast furnace slag. Applied Thermal Engineering, Volume 89, 2015, pp. 494-504. Jun-Jun Wu, …, Bin …

Energy recovery from high temperature slags

Waste heat recovery of blast furnace slag in moving bed: Influencing of structural parameters and operating parameters. 2024, International Journal of Heat and Fluid Flow ... High-temperature analogy experimental investigation on dry granulating characteristic of rotating disk for waste heat utilization of molten slag. Applied Thermal ...

Granulation and Heat Recovery from Metallurgical Slags

In this paper, the slag granulation and heat recovery options are reviewed and given a critical evaluation, aiming to provide a basis for future directions in slag handling. Metallurgical slags are produced at a massive rate of over 750 Mt/year, and carry a thermal energy equivalent to 40 Mt/year of coal.

Centrifugal-Granulation-Assisted thermal energy recovery …

Typical conceptual paradigms of centrifugal-granulation-assisted heat recovery from blast furnace slag by (a) CSIRO [54], (b) ... (RIST) to develop the slag heat recovery technology based on CGATER concept. In the Carbon Report 2013 [164], POSCO released their attempt to treat the molten slag by pilot-scale CGATER plant at 2 …

Centrifugal granulation performance of liquid with various …

DOI: 10.1016/J.APPLTHERMALENG.2015.06.031 Corpus ID: 106899791; Centrifugal granulation performance of liquid with various viscosities for heat recovery of blast furnace slag @article{Wu2015CentrifugalGP, title={Centrifugal granulation performance of liquid with various viscosities for heat recovery of blast furnace slag}, …

Centrifugal granulation performance of liquid with various …

Centrifugal granulation is crucial for heat recovery of blast furnace slag. The disintegration mode transition was experimentally investigated. The mechanism of …

Flight Dynamics and Sensible Heat Recovery of …

Granulation of blast furnace slag is the first step for its heat recovery. Due to environmental and energy issues, dry centrifugal granulation has received a considerable amount of …

Centrifugal granulation performance of liquid with various …

Integration consideration of end-point reproductions like molten slag waste heat high-efficiently recovery and resourceful disposal has a significant influence on establishing more economical and ...

A review of waste heat recovery technologies towards molten slag …

High-temperature waste heat from the iron and steel industry, as shown in Fig. 1, are mainly stored in products, molten slag and waste gas [2].Molten slag, as a kind of by-product during the steelmaking process, is exhausted in extremely high temperature and thus, it carries a great deal of high-grade heat accounting for 10% of waste energy …

Heat Recovery from Slag through Dry …

Water quenching Produces a glassy slag suitable for the cement industry [32] Difficult to achieve heat recovery [69,70] Efficient cooling of high temperature slag [75] High water consumption [70 ...

Multi-Step Recycling of BF Slag Heat via Biomass …

The torrefaction process is linked with slag heat recovery and via the BASE method with enhanced blast furnace operation. Such a combination reduces CO 2 emissions significantly in ironmaking processes.

A Review of Granulation Process for Blast Furnace Slag

Molten slags of blast furnace is a second resources with great value of 1600~1 800 MJ sensible heat per ton. At present, water-quenching process plays a leading role in recovering waste heat of ...

Centrifugal granulation performance of liquid with various …

Centrifugal granulation is a crucial step in the most promising heat recovery technique for molten blast furnace slag.Facing the fact that slag viscosity changes during the granulation process, in the present work, visualization experiments were conducted for centrifugal granulation of mixture liquids by a spinning disc. Then, the effect of liquid …

Multi-Step Recycling of BF Slag Heat via Biomass for CO2 …

As a result of extensive R&D in this area, the slag-processing technologies are slowly converging around dry granulation combined with heat recovery. In this paper, the slag granulation and heat ...