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  • 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 accelerates the slag and forces the slag outwards to the cup lip where it is atomized (see Fig. 2). Figure 2: Atomizing Slag on Rotating ...

  • Granulated Blast Furnace Slag (GBS) - YouTube

    6/05/2016  National Slag Association Iron and Steel Slag Products - Duration: 3:52. National Slag Association 8,325 views. 3:52. 3D Interactive Blast Furnace for Training - Duration: 1:18. ...

  • 作者: MineralProducts1
  • Granulation - Wikipedia

    The dry granulation process is used to form granules without a liquid solution because the product granulated may be sensitive to moisture and heat. Forming granules without moisture requires compacting and densifying the powders. In this process the primary powder particles are aggregated under high pressure. A swaying granulator or a roll compactor can be used for the dry granulation. Dry ...

  • (PDF) Dry slag granulation with integrated heat recovery

    Although Pickering's plant design for combined dry granulation and heat recovery was only a proposal, Davy McKee, and then VAI-UK [37][38] [39], continued development [7] of spinning cup dry ...

  • Dry Granulation of Blast Furnace Slag for Energy Recovery ...

    9/08/2014  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. Both of these processes provide the rapid cooling necessary for the formation of glassy ...

  • Dry Granulation of Blast Furnace Slag - Steel360 News

    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 ...

  • Cutting-Edge By-Product Recycling Primetals Technologies

    Dry slag granulation with heat recovery. Primetals Technologies, voestalpine Stahl, the FEhS – Building Materials Institute and the University of Leoben joined forces in an RD program to develop a new dry-granulation technology using air to cool molten slag and recover the lost heat energy. The slag granulate fulfills the same criteria as wet-granulated slag for use in the cement industry ...

  • Cutting-Edge By-Product Recycling Primetals Technologies

    Dry slag granulation with heat recovery. Primetals Technologies, voestalpine Stahl, the FEhS – Building Materials Institute and the University of Leoben joined forces in an RD program to develop a new dry-granulation technology using air to cool molten slag and recover the lost heat energy. The slag granulate fulfills the same criteria as wet-granulated slag for use in the cement industry ...

  • Dry Slag Granulation (DSG) - YouTube

    9/05/2019  Primetals Technologies has developed a new innovative blast furnace dry slag granulation process with heat recovery at the voestalpine pilot plant in Linz, Austria. You want to know more about our ...

  • 作者: Primetals Technologies
  • TPT: Dry Granulation of Blast Furnace Slag for Heat

    Furthermore, the sensible heat of about 1.5 GJ/t of slag is unused. Using dry slag granulation at integrated steel and iron mills enables the usage of the sensible heat of the blast furnace slag. Therefore, a new plant has been installed by Siemens VAI in cooperation with Montanuniversitaet Leoben at the Chair of Thermal Processing Technology for research and development. In this project there ...

  • 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. Hatch’s dry slag granulation process uses air to directly granulate slag. A stream of hot ...

  • RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: A PATH

    RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: A PATH TO IMPROVING SAFETY AND SUSTAINBILITY OF THE METALLURGICAL SECTOR* Santiago Faucher1 Sina Mostaghel2 Lily Lai Chi So3 Sang Yoon Oh4 Abstract Molten slag from pyrometallurgical furnaces is tapped at high temperature, carrying a large amount of thermal energy. But the common slag dumping and water granulation methods used for slag

  • Slag Granulation Machines China - Meipaly Heavy

    slag granulation process pdf Shanghai Machinery. SLAG GRANULATION PROCESS The Classical granulation process has been employed for a long time and I do not believe it is necessary to describe it at this time » Free online chat The SLAG REC project for an innovative direct dry granulation

  • Granulation of titania slag - SAIMM

    Dry granulation of titania slag was carried out at the 500 kW DC furnace on site. In this instance compressed air was used as granulation medium. Two rectangular guide plates placed on the slag taphole side of the furnace channelled granulated particles produced during the granulation trials. These guide plates (3 mm thickness) were 4.5 m high and 7.2 m in length. The guide plates open up from ...

  • (PDF) Heat Recovery from Slag through Dry Granulation

    Siemens VAI 5,6 (formerly VAI-UK) with limited . success. Recent work by CSIRO 8-9 on dry slag . granulation (Figure 2) has made major progress in . disc and process design, resolving some of ...

  • Heat Transfer in Fluidized Beds in a Dry Slag Granulation

    The world’s leading countries develop dry slag granulation units that are capable of producing solid slag granules and recovering the sensible heat of slag. The main element of such units is a granulation chamber where molten slag is atomized and solidified. In this chamber, up to 30% of the sensible heat of the molten slag is extracted. To recover more heat, the solid granules from the ...

  • ‘Dry’ Granulation of Slags for Producing Cement Binder ...

    The authors will present preliminary results from slag atomisation/dry granulation testwork (0.5 – 2.5 kg scale) and associated modelling studies, conducted using a ‘synthetic’ and industrial ironmaking slag. Outcomes from a techno-economic study on production of cement utilising wet or dry atomised slag granulate will also be discussed in detail. Related products. CollectionMember ...

  • ‘Dry’ Granulation of Slags for Producing Cement Binder ...

    The authors will present preliminary results from slag atomisation/dry granulation testwork (0.5 – 2.5 kg scale) and associated modelling studies, conducted using a ‘synthetic’ and industrial ironmaking slag. Outcomes from a techno-economic study on production of cement utilising wet or dry atomised slag granulate will also be discussed in detail. Related products. CollectionMember ...

  • Some Fundamental Aspects of Dry Slag Granulation Process

    The CSIRO’s Dry Slag Granulation (DSG) process is as a continuous -step prtwo ocess as shown in Figure 1. The molten slag is first atomized using a spinning disc and the fine droplets (< 2 mm) produced contact with flowing air and are cooled before colliding with the roof of the granulator and bouncing back before joining the cyclonic section of the reactor where further cooling and ...

  • CFD modelling of dry slag granulation using a novel ...

    Keywords: dry granulation, slag, spinning disc, CFD, modelling, simulation Slags generated in metallurgical industry are high volume by-products or wastes containing a large amount of heat. In blast furnace ironmaking, for example, for every tonne of hot metal produced, about 300 kg of slag is generated. The cooling of molten slag to ambient temperature can release up to 1.8 GJ/t of thermal ...

  • Granulation TENOVA

    The granulation plant converts molten iron from the Corex plant into solid granules, which permits the iron to be sorted in manageable form. The only emission resulting from the process is water vapour. The iron granules are produced from excess iron produced in the Corex unit. The production of iron is the first stage in the process to produce hot rolled coil at Saldanah Steel.

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

    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 used for the production of steam or electricity or for other useful preheating processes. An energy potential for recovering 20 MW thermal energy or

  • Dry slag granulation with integrated heat ... - Publications

    Dry slag granulation could make a fundamental change in slag treatment. In this new approach, molten slag is atomized under centrifugal forces on a spinning disc, and the droplets generated are quenched and solidified quickly using air, with simultaneous heat recovery. The process produces solid slag granules suitable for cement-making and hot air of 500-600 degC as a heat source for on-site ...

  • Design and Operation of Dry Slag Granulation Pilot Plant ...

    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. The hot granules are fed to a counter-current moving packed bed heat exchanger, where they are further cooled and finally discharged at close to ambient temperature.

  • Understanding The Dry Granulation Process

    Dry granulation is a process whereby granules are formed without the aid of any liquid solution. The process is used if the ingredients to be granulated are sensitive to moisture or heat. Compaction is used to densify the powder and form granules. The process is carried out using a slugging tool or a roller compactor/ tablet press machine. It is important to note that if a tablet press is used ...

  • Dry Granulation of Molten Slag using a Rotating Multi ...

    Dry Granulation of Molten Slag using a Rotating Multi‐Nozzle Cup Atomizer and Characterization of Slag Particles. Yuelin Qin. School of Materials Science and Engineering, Chongqing University, Chongqing 400044, China. Search for more papers by this author. Xuewei Lv. Corresponding Author. E-mail address: [email protected] School of Materials Science and Engineering, Chongqing

  • Dry Granulation of Molten Slag using a Rotating Multi ...

    Dry Granulation of Molten Slag using a Rotating Multi‐Nozzle Cup Atomizer and Characterization of Slag Particles. Yuelin Qin. School of Materials Science and Engineering, Chongqing University, Chongqing 400044, China. Search for more papers by this author. Xuewei Lv. Corresponding Author. E-mail address: [email protected] School of Materials Science and Engineering, Chongqing

  • Granulation - an overview ScienceDirect Topics

    5.3.5 Dry granulation Dry granulation of blast furnace slag was experimented with in the Commonwealth Scientific and Industrial Research Organization (CSIRO), Australia. In this process, molten slag is atomized under centrifugal forces on a spinning disc and the slag droplets generated are quenched and solidified quickly using air ( Xie Jahanshahi, 2008; Xie et al., 2010 ).

  • dry-granulation-copper-slag

    Siemens VAI wants to build a pilot plant for dry slag granulation for testing the possibility of integrated heat and . Live Chat. Read More; Dry Granulation to Provide a Sustainable Option . SUSTAINABLE MINING CONFERENCE / KALGOORLIE, WA, 17 - 19 AUGUST 2010 DRY GRANULATION TO PROVIDE A SUSTAINABLE OPTION FOR SLAG TREATMENT 24 heat from ying slag droplets or

  • THE DRY BLAST- FURNACE SLAG GRANULATION AS RESOURCE

    THE DRY BLAST- FURNACE SLAG GRANULATION AS RESOURCE AND ENERGY ECONOMY IN THE METALLURGY Elena Konchenko Donetsk National Technical University, Ukraine Slag treatment is the main ecological problem of the modern Ukraine metallurgy manufacture. The blast-furnace slag is the by-product of the ironmaking process. It has produced in the blast-furnace in the amount of 300 kg per

  • 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.

  • Dry Granulation to Provide a Sustainable Option for Slag ...

    Compared with conventional wet granulation, the dry slag granulation process offers a more sustainable approach for processing molten slags through saving water, reducing pollution, as well as recovering waste heat to reduce energy consumption, hence GHG emissions. FORMAL CITATION: Xie, D, Jahanshahi, S and Norgate, T, 2010. Dry granulation to provide a sustainable option for slag

  • DRY SLAG GRANULATION WITH HEAT RECOVERY*

    Dry slag granulation is based on molten slag atomisation using a variable speed rotating cup or dish (see Figure 1). The slag is delivered on to the centre of the cup from a slag runner via a vertical refractory lined pipe. The rotation of the cup forces the slag outwards to the cup lip where it is atomised (see Figure 2). Simulation and calculation of the rotating cup gives as a result a ...

  • The effect of size distribution of slag particles obtained ...

    Dry granulation for molten slag and slag particles. Table 1. The main chemical components (mass percent, %) of dry granulation slag and cement clinker. Samples CaO SiO 2 Al 2 O 3 MgO TiO 2 TFe S K; Blast furnace slag: 37.21: 32.99: 15.83: 10.98: 1.08: 0.44: 0.84: 0.42: Cement clinker: 62.82: 21.40: 5.33: 3.24: 0.25: 2.12 – 0.72: 2.2. Methods. The solid slag particles from dry granulation ...

  • A new integrated dry slag granulation and heat recovery ...

    Water granulation has some major shortcomings such as excessive water consumption (1000L/t slag), sulphur emission generating SO2 to cause air pollution, and does not allow for recovery of heat (1.8 GJ/t slag) from molten slag. To address these shortcomings, a new integrated dry slag granulation (DSG) process has been developed at CSIRO. In this process, the molten slag is atomized using a ...

  • Forging a future in green steelmaking - CSIRO

    16/03/2015  The process, known as Dry Slag Granulation, also reduces water use and greenhouse gas emissions, and is the focus of an agreement signed by CSIRO and the Beijing MCC Equipment Research Design Corporation (MCCE). The signing of the agreement, to demonstrate CSIRO’s Dry Slag Granulation (DSG) technology at industrial scale, is a landmark for Australia-China research