slag granulation process
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slag granulation process

Blast Furnace Slag Granulation / Ironmaking / Our ...

Paul Wurth has developed the INBA ® slag granulation process, incorporating our proprietary dynamic INBA dewatering drum. With about 300 references, it is the most popular and effective means of processing blast furnace slag in the world today. The process is highly flexible; and the compact sub-plant can be applied to any furnace configuration.

Blast Furnace Slag Granulation at the Cast House – IspatGuru

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.

slag granulation description

PROCESS AND INSTALLATION FOR GRANULATING SLAG In a process for granulating slag, from a blast furnace or a smelting reduction plant, in which a granule/water mixture formed during the granulation is fed to a granulation tank and then to a dewatering installation, in which the slag granules are dewatered.

Slag Granulation with Continuous Dewatering Ironmaking

Dewatering Process The granulated slag and water mix is distributed evenly over the whole length of the drum. Axial vanes inside the drum continuously lift the slag sand onto a conveyor belt for immediate evacuation. The fine mesh on the exterior of the drum retains the slag sand and allows the water to filter through. The slag

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.

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

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% glass content.

Dry Granulation of Blast Furnace Slag Steel360 News

04-04-2019  The dry granulation process of liquid slagis described below. 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).

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

Dry slag granulation is based on molten slag atomization using a variable speed rotating cup or dish (see Fig. 1). The slag is fed from the slag runner via a vertical refractory lined pipe directly onto the center of the rotating cup. The rotation of the cup

Process for granulation of slag - Paul Wurth S.A.

Process for granulation of slag 1. In a process for the granulation of molten slag, the molten slag being wet by a stream of liquid to cause... 2. The process of claim 1 wherein: said first and second liquid current components are generally parallel contoured... 3. The method of claim 1 wherein the ...

RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: A PATH

The slag is first granulated via launder granulation and tank granulation. In launder granulation, molten slag is granulated and quenched with pressurized water jets. In tank granulation, molten slag is directly poured into large quantities of stirring water.

Dry Granulation of Blast Furnace Slag for Energy

The 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. The atomization is done using a rotary cup air blast atomizer. The particles cool as they travel through the air and are then cooled further in a fluidized bed.

slag granulation process digram - wdb-transport

slag granulation process digram - concertinacoilscoin FIG 1 shows a flow diagram of a slag granulation , Contact Supplier The Granulation Process 101 - Techceuticals his article presents the basic technologies for preparing powders for tablet making Granulation is the process of collecting particles together by creating bonds between.

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.

Northam Converter Dry Slag Granulation - Hatch Ltd

22-10-2020  Following successful trials, in mid-2016 Northam contracted us for the basic engineering of a new dry granulation system for converting slag. This required Hatch to design new equipment suitable for use with platinum group metals (PGM) slag and entrained matte, which, based on our experience in this sector, needed to be different than what had been previously implemented for steelmaking slag.

IBMD - Granulated Blast Furnace Slag Manufacturer in India

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.

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.

Prediction on particle size characteristics of high ...

01-10-2020  Increasing disk rotational speed and/or decreasing slag flow rate were found to accelerate the granulation process, promote an increase to the proportion of small-sized particles, and by extension a decrease in the Sauter mean diameter. Moreover, the mean diameter of the slag particles does not change monotonically with the slag temperature. 2)

gold recovery slag granulation process - ptsp

Dry slag granulation: producing valuable by. 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 to recover the heat..

RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: A PATH

slag hauling and production of higher value by-product. Wet granulation allows for fast quenching of molten slag and production of high value glassy material, which, for BF slag, demonstrates desirable cementitious properties post milling. BF slag is typically devoid of metal, making water granulation a manageable process from a safety perspective.

Dry Granulation of Blast Furnace Slag for Energy

The 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. The atomization is done using a rotary cup air blast atomizer. The particles cool as they travel through the air and are then cooled further in a fluidized bed.

slag granulation process digram - wdb-transport

slag granulation process digram - concertinacoilscoin FIG 1 shows a flow diagram of a slag granulation , Contact Supplier The Granulation Process 101 - Techceuticals his article presents the basic technologies for preparing powders for tablet making Granulation is the process of collecting particles together by creating bonds between.

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.

Plant Granulation Slag Steel - admeij

Dry Slag Granulation With Waste Heat Recovery. Dry slag granulation with waste heat recovery 1.Minerals down under national research flagship current status future direction of csiros dry slag granulation process with waste heat recovery icst 2012, dresden, germany 1-3 october, 2012 sharif jahanshahi and dongsheng xie 2.

Apparatus for and process of water granulating matte or

Process and apparatus for granulation of slag: 1985-01-22: Monteyne et al. 65/19: 4461636: Installation for continuous treatment of molten materials to obtain pelletized products: 1984-07-24: Gagneraud et al. 4416690: Solid matte-oxygen converting process: 1983-11-22: Richards et al. 75/26: 4230477: Apparatus for granulating molten slag: 1980 ...

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.

Northam Converter Dry Slag Granulation - Hatch Ltd

22-10-2020  However, a dry slag granulation system had not yet been deployed in the non-ferrous industry. Although it has demonstrated success in the steelmaking industry for decades, adoption of a dry granulation solution in non-ferrous industries has been challenged by the technical risks associated with process uncertainties and by the financial risks associated with investing capital in new equipment.

Study on Treating Blast Furnace Slag by TYNA Granulation ...

This new slag granulation process has following main advantages: simple equipments, small floor area, and large granulating capacity, quality product of slag, low construction and operation cost. The blast furnace slag with iron content of less than 40 % may be granulated safely by this process, and the dry slag pit is not necessary for this process.

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