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Blast Furnace Slag Granulation / Ironmaking / Our

Slag handling is an important aspect of modern blast furnace operation. Today, blast furnace slag is a saleable product (granulated slag sand used as CO 2-friendly substitute of clinker in cement production) rather than a difficult and costly waste material.Paul Wurth has developed the INBA ® slag granulation process, incorporating our proprietary dynamic INBA dewatering drum.

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Dry Granulation of Blast Furnace Slag steel-360

Dry slag granulation process is essentially to atomize the liquid slag and then to cool the particles rapidly so as to produce a glassy slag. Heat is recovered from the slag in the following ways. As the spray of slag particles moves outwards from the atomizer, heat is lost by radiation to the vessel and by convection to the air moving through

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Dry Slag Granulation (DSG) YouTube

May 09, 2019 Primetals Technologies has developed a new innovative blast furnace dry slag granulation process with heat recovery at the voestalpine pilot plant in Linz, Austria. Do you want to learn more about

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Some Fundamental Aspects of Dry Slag Granulation Process

granulation process and the dynamics of slag droplet collision with solid surfaces will be covered. Published studies on the thermodynamics of sulphur in slags and kinetics of sulphur transfer between blast the furnace slags and oxidising gas mixtures have been reviewed to ascertain the effects of oxygen ial pressure on part

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Ground granulated blast-furnace slag Wikipedia

To obtain a good slag reactivity or hydraulicity, the slag melt needs to be rapidly cooled or quenched below 800 °C in order to prevent the crystallization of merwinite and melilite. To cool and fragment the slag a granulation process can be applied in which molten slag is subjected to jet streams of water or air under pressure.

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Products › Ironmaking and steelmaking › Slag Granulation

In the granulation section, the liquid slag is ‘quenched’ by pouring onto it an excess water stream. The evaporated water will be condensed in a condensing tower located above the granulation tank. This proven granulation process ensures economic granulation and produces valuable and consistent properties in the blast furnace slag.

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Blast furnace slag granulation at cast house IspatGuru

May 05, 2013 Concept of slag granulation. The process of slag granulation involves pouring the molten slag through a high pressure water spray in a granulation head, located in close proximity to the blast furnace. Granulation process is the controlled quenching of the slag in cold water which does not give time for crystalline growth to take place.

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(PDF) A Review of Granulation Process for Blast Furnace Slag

After a thorough comparative analysis of various treatment technologies, it can be concluded that centrifugal granulation affiliated with dry granulation is the optimum process, with smaller slag

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Granulation Wikipedia

Granulation is the process of forming grains or granules from a powdery or solid substance, producing a granular material.It is applied in several technological processes in the chemical and pharmaceutical industries. Typically, granulation involves agglomeration of fine particles into larger granules, typically of size range between 0.2 and 4.0 mm depending on their subsequent use.

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Design and Operation of Dry Slag Granulation Pilot Plant

Abstract. 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 quenched to become solid granules.

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Design and Operation of Dry Slag Granulation Pilot Plant

Abstract. 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 quenched to become solid granules.

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Dry slag granulation: producing valuable by-products from

Jan 02, 2019 We developed a new, integrated dry granulation and heat recovery process which promotes sustainability and full value recovery. Molten slag is atomised under centrifugal forces exerted by a spinning disc to produce droplets which are then quenched and solidified using air

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CFD modelling of dry slag granulation using a novel

of Liquid Slag on a Spinning Disc for a Novel Dry Slag Granulation Process”, Progress in Computational Fluid Dynamics, Vol. 10, Nos. 5-6, 2010, pp. 292-299. 7. Y. Pan, P. J. Witt, B. Kuan, and D. Xie, “CFD Simulation of Slag Droplet Formation by a Spinning Disc in Dry Slag Granulation Processes”, 8th International Conference on CFD

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Granulation of titania slag SAIMM

Wet granulation of titania slag Description and operation of the wet granulation plant Wet granulation of titania slag was carried out at the research and development facilities of Exxaro in Pretoria. Ilmenite was smelted in the 1.5 MW DC furnace at this facility. The typical titania slag tap mass was approximately one ton.

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Dry Granulation to Provide a Sustainable Option for Slag

Dry slag granulation is destined to replace conventional water granulation of molten slags in the not too distant future, creating a paradigm shift in the history of slag treatment. In this dry process, molten slag is atomised under centrifugal forces on a spinning disc and the slag droplets generated are quenched and solidified quickly using air.

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Preface for Thematic Section: Slag Granulation SpringerLink

May 31, 2019 As a “wet” process, water granulation cannot recover high-grade waste heat from molten slags. The process consumes a large amount of water (about 1 ton of water per ton of slag is lost through evaporation) and may emit acid mist, H 2 S, and SO 2, causing serious air pollution. Furthermore, the wet granulated slag has to be dewatered at a

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Cutting-Edge By-Product Recycling Primetals Technologies

In the Baosteel Slag Short Flow (BSSF) granulation process developed by Baosteel, the liquid slag is transferred to a granulation drum where it is treated with injected water with a dwell time between three and five minutes, which significantly reduces the amount of unreacted free lime.

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(642e) Dry Granulation of Blast Furnace Slag for Heat Recovery

Nov 07, 2013 increase could be measured. With the obtained data, process optimization can be done and a scale up for further investigations can be realized in the future. Using dry slag granulation at integrated steel and iron mills will gain access to the sensible heat of the blast furnace slag. The recovered energy can be

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Dry Granulation of Blast Furnace Slag for Energy Recovery

Aug 09, 2014 This involves granulating the slag by mechanical agitation and recovering heat from the granulation process by radiation and later from the granulated slag particles in a fluidized bed. The slag product is used as an aggregate for the construction industry. Dry slag granulation using a

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Blast Furnace plants by Primetals Technologies

Primetals Technologies has provided blast furnace engineering, project excellence and expertise to customers world-wide for over a century. Our technology base covers the entire blast furnace process route from hot blast and raw material handling, through the furnace and casthouse, to gas cleaning and hot metal / slag processing.

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chinese technology for blast furnace slag granulation process

Paper Slag Valorisation Symposium. In this paper, the dry granulation process flow and semi- industrial valorisation are 21% for steel slags and 76% for blast furnace slags.

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TPT: Dry Granulation of Blast Furnace Slag for Heat Recovery

Dry Granulation of Blast Furnace Slag for Heat Recovery Blast furnace slag is known as a by-product from the production of hot metal at integrated steel and iron mills. Approximately 300 kg of this liquid slag with a temperature of about 1500°C is tapped together with each ton hot metal.

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Siemens and Baosteel lend a hand for slag granulation

In Baosteel’s BSSF granulation process, the liquid slag is moved to granulation drum for treatment with injected water having dwell time between 3-5 minutes that reduces the unreacted free lime amount. To avoid emissions of dust & hazardous substances, the hermetically sealed vessel and central vapor extraction system are used.

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dry granulation copper slag benitomedia.co.za

Molten slag during the dry granulation process. A researcher adjusts equipment used in the pyrolysis process. Molten slag during the dry granulation process. Get Price. Effect of Lime and Cement on the Strength Improvement of Copper Improvement of Copper Slag Stabilized Soil Cement, Optimum Moisture Content, Maximum Dry.

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chinese technology for blast furnace slag granulation process

Paper Slag Valorisation Symposium. In this paper, the dry granulation process flow and semi- industrial valorisation are 21% for steel slags and 76% for blast furnace slags.

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dry granulation copper slag benitomedia.co.za

Molten slag during the dry granulation process. A researcher adjusts equipment used in the pyrolysis process. Molten slag during the dry granulation process. Get Price. Effect of Lime and Cement on the Strength Improvement of Copper Improvement of Copper Slag Stabilized Soil Cement, Optimum Moisture Content, Maximum Dry.

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A Review of Granulation Process for Blast Furnace Slag

A Review of Granulation Process for Blast Furnace Slag. Recommend Documents (ET)Dry Granulation of Molten Blast Furnace Slag and processing speed, large treatment of capacity and low toxic exhaust[9, 10]. The PCB of high qualities heat in the experiment of dry granulation molten BF slag.

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Hatch Ironmaking Technologies Dry Slag Granulation

Dry Slag Granulation. Water granulation is the most commonly used method to handle blast furnace slag and requires a granulation and a dewatering step to process the slag. In water granulation, the energy in the slag is lost from water evaporation and cooling and is difficult or impossible to recover.

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TPT: Dry Granulation of Blast Furnace Slag for Heat Recovery

Dry Granulation of Blast Furnace Slag for Heat Recovery Blast furnace slag is known as a by-product from the production of hot metal at integrated steel and iron mills. Approximately 300 kg of this liquid slag with a temperature of about 1500°C is tapped together with each ton hot metal.

get price

Siemens and Baosteel lend a hand for slag granulation

In Baosteel’s BSSF granulation process, the liquid slag is moved to granulation drum for treatment with injected water having dwell time between 3-5 minutes that reduces the unreacted free lime amount. To avoid emissions of dust & hazardous substances, the hermetically sealed vessel and central vapor extraction system are used.

get price

inba slag granulation plant marinetaxis.co.za

INBA Slag Granulation System Environmental Process Control This paper presents the initial designs of the granulation plant and the route to the latest layout Read More. Review of 8th Global Slag Conference 2012. Dave Berdusco of Paul Wurth next spoke about the INBA slag granulation system A plant producing 6000t of metal per day

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Abstract: Dry Granulation of Blast Furnace Slag for Heat

Also a significant off gas temperature increase could be measured. With the obtained data, process optimization can be done and a scale up for further investigations can be realized in the future. Using dry slag granulation at integrated steel and iron mills will gain access to the sensible heat of the blast furnace slag.

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slag granulation German translation Linguee

Many translated example sentences containing "slag granulation" German-English dictionary and search engine for German translations. Look up in Linguee; Suggest as a translation of "slag granulation" which is generated by the incineration or co-incineration process, the exhaust gas or waste water treatment or other processes within the

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Stabilization of Stainless Steel Slag via Air Granulation

A growing number of researches believes that Dry Centrifugal Granulation (DCG) process is the most promising process in deal with the molten slag to raw material in cement produced on account of

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The smelting operations of Anglo American’s platinum

§ Upgrade of the slag-granulation circuit The greater throughput of concentrate in the furnace will give rise to greater volumes of slag and the current granulation circuit will be upgraded to cater for this. § Replacement of the off-gas system with a new electrostatic precipitator

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CURRENT DEVELOPMENT OF SLAG VALORISATION IN

granulation and steel slag pyrolytic self-slaking have made progress and are applied in a number of large steelmaking companies in China. Current researches and developments are focusing on the dry granulation of molten BF slag with high efficiency of heat recovery. In this paper, the dry granulation process flow and semi-

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Blast furnace slag granulation Climate Technology Centre

The molten slag is then separated from the liquid metal and cooled (Gielen et al., 2008). If the molten slag is cooled and solidified by rapid water quenching to a glassy state, little or no crystallization occurs. This process results in the formation of sand size (or frit-like) fragments, usually with some friable clinkerlike material.

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Technology for granulating ferroalloys the GRANSHOT®

to easily penetrate the slag layer during addition as well as allow for a rapid melting and dissolution in the hot metal bath. The granulated product has a homogeneous composition identical to the metal fed into the granulator and without the variations in composition that is obtained when casting in sandpits. 4 GRANSHOT metal granulation process

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