(PDF) Slag granulation systems for blast furnaces

Therefore, systems for the slag granulation have been developed. High content of slag in the granules is provided. Low growth of crystals is noted in this case. Efficient water cooling of the...

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Products › Ironmaking and steelmaking › Slag Granulation ...

The slag granulation plant comprises three sections: for granulation, dewatering and storage. 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.

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Slag Granulation with Continuous Dewatering Ironmaking

2021-6-16  Slag Granulation with the INBA Dewatering System Molten slag is often considered as a waste material when it is cast into slag pits. INBA slag granulation and dewatering system is the proven route for converting molten slag into a value added product for the cement industry.

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SLAG GRANULATION – NAVIC

The slag granulation installation designed by us enables its easy transport and dosing. Basic scope of design works: – wet dust extraction system and extraction of steam generated in the process with a capacity of 80,000 Nm3/h (the installation includes a system of exPulverizers sealing the granulation

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AISTech2018 Dry Slag Granulation – The Future Way to ...

2018-7-27  Granulate product: Requirement for starting the granulation process is a stationary established fluidized bed inside the granulator. Then the slag is granulated for about one hour and the granules are collected in the granulate bed. The analyses of the slag product shows 97 to 99% Limestone content.

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Effect of Water Granulation Conditions on Density and ...

Method of Water Granulation Experiment In the water granulation system, the flow rate and temperature of the molten slag, which flows out of the tapping hole of the blast furnace, change with time from the start of tapping.

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Reuse Technology for Slag Generated from Municipal

2019-4-3  Slag cooling technology suitable for each melt-ing system is used to produce slag. A water granulation method that enables simultaneous discharge and cooling of molten slag and molten metal is used in the high-tem-perature gasifying and direct melting furnace equipped with continuous slag discharge

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Rasa system in slag granulation

Rasa system in slag granulation Products As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Rasa system in slag granulation, quarry, aggregate, and

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Dry Slag Granulation: A Path to Improving the Safety and ...

2016-8-23  Abstract. Slag dumping and water granulation are the most commonly used slag treatment methods in the metallurgical industries. In both processes, water is present (by desire for cooling and dispersion or as a result of rain accumulation) and thus equipment and operations are designed to minimize and mitigate the risk of steam explosions resulting from the inappropriate contact of slag with water.

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Apparatus for and process of water granulating matte or slag

1997-5-30  The granulation water can be cooled in a conventional cooling tower 33, and then recycled to the granulation system. Preferably, a backup water supply system is provided to assure water flow to the granulation heads even in the event of an electrical power failure that shuts down the main granulation

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Slag Granulation with Continuous Dewatering Ironmaking

2021-6-16  Slag Granulation Area: Granulation Tank Blowing Box The slag granulation area links the hot slag runner of the blast furnace and the INBA dewatering system. This link is directly accomplished through the use of a granulation tank. The granulation tank creates a compact layout, which allows a reduced water circuit design with op-

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SLAG GRANULATION – NAVIC

The slag granulation installation designed by us enables its easy transport and dosing. Basic scope of design works: – wet dust extraction system and extraction of steam generated in the process with a capacity of 80,000 Nm3/h (the installation includes a system of exPulverizers sealing the granulation chute, pipeline installation, counterflow ...

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AISTech2018 Dry Slag Granulation – The Future Way to ...

2018-7-27  evaporation of water. • For granulation, the circulated water has to be re-cooled in cooling towers or with other cooling methods. Mainly cooling towers are equipped with electrically powered fans and also the cooling water circulation system are consuming significant electrical power. Finally the heat is released to the environment at a low

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INBA process for slag granulation - Technische ...

The first step to reduce emissions is associated with the implementation of a cold water circuit granulation system. The implementation of the granulation basin reduces the solidification time of the slag, the sulphurous emissions and the slag sand product can be improved.

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Some Fundamental Aspects of Dry Slag Granulation

2014-7-8  processed using water quenching to form a Limestoney cementitious material that can be used to substitute for Portland cement. However, the conventional water granulation process consumes a large volume of fresh water through evaporation of 10001500 liters of water per tonne of slag. Given the growing pressure on our industry to reduce its -

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Project Portfolio - Slag Granulation Plant Globex ...

The melted (liquid) slag at the temperature of 1300°C – 1550°C is led into the granulation chamber through a channel system (with an internal refractory lining). Direct contact between pressurized water stream and melted liquid slag takes place in the granulation chamber.

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Reuse Technology for Slag Generated from Municipal

2019-4-3  Slag cooling technology suitable for each melt-ing system is used to produce slag. A water granulation method that enables simultaneous discharge and cooling of molten slag and molten metal is used in the high-tem-perature gasifying and direct melting furnace equipped with continuous slag discharge operation. For the plasma type ash melting ...

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Feasibility of Rotary Cup Atomizer for Slag Granulation

The steelmaking has by-produced a lot of molten slag of high temperature; about 300kg per ton of pig iron. Conventionally, the Blast Furnace (B.F.) slag was treated by impinging much water for granulation and Limestoneification. This treatment is mainly used for producing a raw material of the B.F. cement, aggregate and the roadbed.

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Apparatus for and process of water granulating matte or slag

1997-5-30  The granulation water can be cooled in a conventional cooling tower 33, and then recycled to the granulation system. Preferably, a backup water supply system is provided to assure water flow to the granulation heads even in the event of an electrical power failure that shuts down the main granulation

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Environmental Technical Services Products RASA

2015-3-25  Slag Granulation System "RASA SYSTEM" If molten slag, a byproduct produced when steel is manufactured in a blast furnace, is rapidly cooled with jet water, granulated slag is produced. Granulated slag is recycled as raw materials for cement,

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DRY SLAG GRANULATION WITH HEAT RECOVERY*

2020-4-6  • When slag is quenched with water, the high energy potential of liquid slag is wasted to heat and evaporate water. For granulation, the circulated water has to be re-cooled in cooling towers or with other cooling methods. Mainly cooling towers are equipped with electrically operated fans and also the cooling water circulation system consumes ...

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AISTech2018 Dry Slag Granulation – The Future Way to ...

2018-7-27  evaporation of water. • For granulation, the circulated water has to be re-cooled in cooling towers or with other cooling methods. Mainly cooling towers are equipped with electrically powered fans and also the cooling water circulation system are consuming significant electrical power. Finally the heat is released to the environment at a low

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Further processing and granulation of slags with

2011-3-3  Generically, water granulation involves breaking up a stream of molten metal or slag by means of a water jet. The molten metal/slag is poured into a hot runner conveying it to drop vertically down into a horizontal stream of water, which breaks the molten metal/slag

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Reuse Technology for Slag Generated from Municipal

2019-4-3  Slag cooling technology suitable for each melt-ing system is used to produce slag. A water granulation method that enables simultaneous discharge and cooling of molten slag and molten metal is used in the high-tem-perature gasifying and direct melting furnace equipped with continuous slag discharge operation. For the plasma type ash melting ...

Get Price

Some Fundamental Aspects of Dry Slag Granulation

2014-7-8  processed using water quenching to form a Limestoney cementitious material that can be used to substitute for Portland cement. However, the conventional water granulation process consumes a large volume of fresh water through evaporation of 10001500 liters of water per tonne of slag. Given the growing pressure on our industry to reduce its -

Get Price

SMS group GmbH: Successful INBA® Plant Reline at

2020-3-23  Paul Wurth’s INBA granulation and dewatering technology has been operating there since its initial installation in 2003. It is a cold water system with steam condensation designed for a daily capacity of 1,600 tons of blast furnace slag sand and a maximum slag flow of up to 8 tons/min.

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Granulation and Heat Recovery from Metallurgical Slags ...

2019-12-9  Leyser P, Cortina C (2006) INBA slag granulation system with environmental control of water and emissions. Millenn Steel 67–72. 24. Smith M (2017) Blast furnace slag granulation, personal communication. Nov 2017. 25. van Stein Callenfels E, van Ikelen J (2017) Slag granulation systems

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Slag recycling - recovery

There are various processes on the market for the granulation of blast furnace slag. The most important process is cooling in a water bath. The most common methods are the RASA system from Rasa Corporation, the INBA system (Fig. 16) from Paul Wurth, a company of the SMS group, and the IJ GRAN system from Danieli-Corus.

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