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(PDF) A Review of Granulation Process for Blast Furnace

08/10/2021 Yu, et al. [188] reviewed the granulation process for blast furnace slag. They reported that for every pig iron production accompanied by 0.3-0.6 tons of blast furnace slag

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Blast Furnace Slag Granulation at the Cast House

05/05/2013 The process of slag granulation involves pouring the liquid slag through a high pressure water spray in a granulation head, located in close proximity to the BF. Granulation process is the controlled quenching of the slag in cold water which does not give time for crystalline growth to take place. Large volume of water is needed (around 10 parts of water to 1 part of liquid slag being

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Design and Operation of Dry Slag Granulation Pilot Plant

22/02/2019 CSIRO Dry Slag Granulation Process Overview. The CSIRO dry granulation process involves a two-step operation involving a granulator and a moving bed counter-current heat exchanger as shown in Fig. 1 . The granulator receives and atomizes molten slag to produce liquid droplets, which are rapidly quenched to become solid granules. The hot granules are fed to a second unit, a counter

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Process for granulation of slag Paul Wurth S.A.

Process for granulation of slag . United States Patent 4374645 . Abstract: The granulation of molten material, blast furnace slag for example, is accomplished by wetting the slag with a stream of water and thereafter transporting the thus formed granules away from the point of granulation with the water stream. Water consumption is minimized and average grain size increased by employing a

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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 sulphur solubility in slags as well as the rate of desulphurisation

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Design and Operation of Dry Slag Granulation Pilot Plant

22/02/2019 CSIRO Dry Slag Granulation Process Overview. The CSIRO dry granulation process involves a two-step operation involving a granulator and a moving bed counter-current heat exchanger as shown in Fig. 1 . The granulator receives and atomizes molten slag

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Slag Granulation with Continuous Dewatering Ironmaking

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-timal heat transfer conditions in addition to better product quality. Granulation Tank with Condensation Tower and

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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. This proven granulation process ensures economic granulation and produces valuable and consistent

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Process for granulation of slag Paul Wurth S.A.

Process for granulation of slag . United States Patent 4374645 . Abstract: The granulation of molten material, blast furnace slag for example, is accomplished by wetting the slag with a stream of water and thereafter transporting the thus formed granules away from the point of granulation with the water stream. Water consumption is minimized and average grain size increased by employing a

get price

Dry Granulation of Blast Furnace Slag Steel360

04/04/2019 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. Atomization is done using a rotary cup air blast atomizer (Fig 1). The particles cool as they travel through the air and are then cooled further in a fluidized bed. Both of these cooling processes provide the rapid cooling necessary for the formation of

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CN102329900B Liquid steel slag dry-process granulating

The granulating method comprises the following steps: liquid steel slag enters the dry-process granulator through the feeding device and is granulated into fine steel slag granules, and enters the roller type sensible heat recovery device with solid particles separated by the cyclone separator to recover the sensible heat. The invention has the advantages that the grain size of the granulated

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INBA process for slag granulation Technische

The implementation of the granulation basin reduces the solidification time of the slag, the sulphurous emissions and the slag sand product can be improved. The granulation basin allows the introduction of a sealing hood as a barrier to 'false air', besides additional benefits e.g, higher resistance to wear, reduced height design, reduced pipe investment due to less water flow in the circuits

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Prediction on particle size characteristics of high

01/10/2020 The overall process for slag centrifugal granulation, with characteristic behaviors. Download : Download high-res image (150KB) Download : Download full-size image; Fig. 6. The fragmentation detail of a liquid slag ligament. 3.3. Effects of slag temperature, slag flow rate, and disk rotational speed. The slag flow rate, which reflects the processing capacity of the DSG (dry slag granulation

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Ground granulated blast-furnace slag

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. Alternatively, in the pelletization process the liquid slag is

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Tapping hot slag for energy — Metals Magazine

01/10/2018 Generally, wet granulation plants are used to cool down and process the material, using large quantities of water—it can take more than eight tons of water to treat one ton of slag. As of now, there is no industrial-scale method to recover the heat energy retained in the slag—amounting to roughly 1.7 GJ per ton. In fact, cooling and treating the water used in the process requires a large

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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 sulphur solubility in slags as well as the rate of desulphurisation

get price

Dry slag granulation: producing valuable by-products from

[Images flash through of the process of dry slag granulation] What we’ve developed here is dry slag granulation. We can granulate the slag, produce a good quality product that can be used for cement manufacture but do it in a way that doesn’t involve water. [Image changes to show Mark Cooksey] If you use our products to produce cement for each tonne you use you basically save 800 kilograms

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

08/10/2021 Yu, et al. [188] reviewed the granulation process for blast furnace slag. They reported that for every pig iron production accompanied by 0.3-0.6 tons of blast furnace slag produced with the

get price

Blast Furnace Slag Granulation at the Cast House IspatGuru

05/05/2013 The process of slag granulation involves pouring the liquid slag through a high pressure water spray in a granulation head, located in close proximity to the BF. Granulation process is the controlled quenching of the slag in cold water which does not give time for crystalline growth to take place. Large volume of water is needed (around 10 parts of water to 1 part of liquid slag being

get price

Process for granulation of slag Paul Wurth S.A.

Process for granulation of slag . United States Patent 4374645 . Abstract: The granulation of molten material, blast furnace slag for example, is accomplished by wetting the slag with a stream of water and thereafter transporting the thus formed granules away from the point of granulation with the water stream. Water consumption is minimized and average grain size increased by employing a

get price

A Review of Granulation Process for Blast Furnace Slag

granulation affiliated with dry granulation is the optimum process, with smaller slag particle size (about 2mm), more glassy phase and higher recovery rate. 1 Introduction

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Dry Granulation of Blast Furnace Slag Steel360

04/04/2019 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. Atomization is done using a rotary cup air blast atomizer (Fig 1). The particles cool as they travel through the air and are then cooled further in a fluidized bed. Both of these cooling processes provide the rapid cooling necessary for the formation of

get price

INBA process for slag granulation Technische

The implementation of the granulation basin reduces the solidification time of the slag, the sulphurous emissions and the slag sand product can be improved. The granulation basin allows the introduction of a sealing hood as a barrier to 'false air', besides additional benefits e.g, higher resistance to wear, reduced height design, reduced pipe investment due to less water flow in the circuits

get price

(PDF) Slag granulation systems for blast furnaces

Slag Granulation Systems for Blast Furnaces Page 9 of 12 B-2-033. Figure 8 Hot wate r granulation system at a 7500 thm/d fu rnace. The stack needs to be sufficiently high to disperse the steam

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Ground granulated blast-furnace slag

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. Alternatively, in the pelletization process the liquid slag is

get price