Commercialising innovation: the key to meet ESG ...
Dry Slag Granulation Dry slag granulation plant built by the Beijing Research Institute of Metallurgical Equipment (MCCE) for the industrial demonstration Steelmaking worldwide produces over 300 million tonnes of iron blast furnace slag every year, dissipating incredible amounts of heat in the environment.
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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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Experimental study of rotating dry slag granulation unit ...
This paper focuses on an experimental study of dry slag granulation process using an analogue for BF slag (a mixture of rosin and paraffin wax). This analogue can be used to experimentally study dry slag granulation at a relatively low temperature of 130 °C compared to BF slag at 1500 °C. Different ranges of operating conditions in terms of ...
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Heat recovery in dry granulation of molten blast furnace slag
@article{osti_5610662, title = {Heat recovery in dry granulation of molten blast furnace slag}, author = {Tetsuro, N and Hiroshi, N and Koichi, F and Tsukio, I}, abstractNote = {In a research and development project undertaken jointly between Ishikawajima-Harima Heavy Industries Co. and Sumitomo Metal Industries, Ltd., a process has been developed for granulating molten …
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Energy–environment–economy evaluations of commercial scale ...
A prototype dry slag granulation system was proposed and designed in commercial scale. • The input and output flows of each slag-treatment system were identified. • Life cycle assessment on the dry slag granulation method and water quenching methods was carried out. • Economic costs and returns during the lifetime of slag were calculated.
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Global Slag Knowledge Base
Paper 7 Dry slag granulation with heat recovery - an update: Ian McDonald: Siemens VAI Metals Technologies. Paper 8 Dry Slag Granulation: Operational results from the first full scale pilot plant: Horst Kappes: Daniel Michels; Paul Wurth. Paper 9 Effective slag management operations at Binani Cement, Dubai: Anil Parashar: Binani Cement Factory LLC
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(PDF) Some fundamental aspects of the dry slag …
The CSIRO's Dry Slag Granulation (DSG) process is as a continuous two-step p rocess as shown in Figure 1. The. molten slag is first atomized using a …
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Some Fundamental Aspects of the Dry Slag Granulation …
There is a growing interest in development of a dry slag granulation (DSG) process so as to recover the sensible and latent heats from molten slags and convert iron blast furnace slags into a glassy phase that is a suitable replacement for Portland cement. The combination of waste heat recovery and conversion of slag into a saleable product ...
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v118n6a10 Impact of air granulation on the ferrochrome ...
Dry slag granulation has been developed and commercialized over the past two decades with a focus on addressing the downfalls of traditional slag-handling methods. The three most common dry slag granulation categories are: 1. Mechanical granulation—Molten slag is broken up,
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Northam Converter Dry Slag Granulation - Hatch Ltd
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 ...
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Granulation of molten slag for heat recovery - IEEE ...
(3) Sulfide is emitted from the slag into an air by the water quenching. (4) A post process for drying slag is a must after the water quenching. (5) The thermal energy of high temperature slag is wasted without recovery. To solve these problems, we studied the dry granulation of the molten slag by rotary cup atomizer (RCA).
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(PDF) Experimental study of rotating dry slag granulation ...
Experimental study of rotating dry slag granulation unit: Operating regimes, particle size analysis and scale up. Download. Related Papers. CFD simulation of free surface flow and heat transfer of liquid slag on a spinning disc for a novel dry slag granulation process. By Peter Witt.
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EP3022165A1 - Process and apparatus for dry granulation of ...
A process for producing substantially dry slag granules comprises adding a controlled amount of water to a molten stream of slag, and granulating the slag to produce solidified slag comprising substantially dry slag granules and slag wool. An apparatus for producing substantially dry slag granules comprises: (a) an inclined surface having an upper and lower ends for receiving and …
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AIST - 2014 AISTech Conference Proceedings
Dry Slag Granulation With Heat Recovery. Ian J. McDonald. Download PDF. View Sample Page. Abstract: Each year approximately 400 million tons of blast furnace slag are produced worldwide. The slag, which has a tapping temperature of around 1,500°C, is normally used as a substitute for cement clinker or as an aggregate material in road ...
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RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: A PATH …
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 treatment do not permit energy recovery. Furthermore, water is present in these processes and while operations are designed to minimize risks of steam explosions, from the …
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EP2922976B1 - Dry slag granulation system and method ...
Dry slag granulation system and method Download PDF Info Publication number EP2922976B1. EP2922976B1 EP13794861.8A EP13794861A EP2922976B1 EP 2922976 B1 EP2922976 B1 EP 2922976B1 EP 13794861 A EP13794861 A EP 13794861A EP 2922976 B1 EP2922976 B1 EP 2922976B1 Authority EP European Patent Office Prior art keywords …
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Instantaneous measurements of granular blast furnace slag ...
Abstract An instantaneous measurement method was developed to measure the surface temperature and surface emissivity of blast furnace slag for investigating dry granulation and waste heat recovery from blast furnace slag.The system was used to measure temperature-gray scale and emissivity-temperature relationships from granular blast furnace slag images …
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Tapping hot slag for energy — Metals Magazine
Tapping hot slag for energy. Hot Blast Furnace slag is a source of energy that has gone largely untapped. Dry Slag Granulation is about to change this. Tapped at 1,500 degrees Celsius, blast furnace slag retains a staggering 1.7 Gigajoules of energy per ton—enough to sustainably power an electric car for months.
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Dry Slag Granulation with Heat Recovery - ABM Proceedings
Dry Granulation Concept. 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).
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Dry Slag Granulation with Waste Heat Recovery
CSIRO's Dry Slag Granulation Process Technical Challenges – Optimum disc and reactor design – Handling of hot granules – Compact reactor for efficient recovery of high grade waste heat and lower capital cost Concept Development 2006/7 Motor Air Hotair >600 C Discharge 500 C 100 C Slag 1500 C Air ICST 2012, Dresden 6 7.
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Dry Slag Granulation (DSG) - YouTube
Primetals Technologies has developed a new innovative blast furnace dry slag granulation process with heat recovery at the voestalpine pilot plant in Linz, A...
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ABM Proceedings - DRY SLAG GRANULATION WITH HEAT …
The resultant pelletised slag fulfils the same criteria as wet-granulated slag for use in the cement industry. Phase 1 of the project has now been completed where a technical plant was set up at the University of Leoben in 2012. A series of dry-slag granulation campaigns were carried out using remelted blast furnace slag.
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(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
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METHOD AND DEVICE FOR DRY SLAG GRANULATION WITH …
RU-2016104804-A chemical patent summary.
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Paul Wurth wins FEDIL Environment Award 2013
The process is known as 'dry slag granulation with energy recovery'. Steel spheres are injected evenly into the liquid slag providing a large contact surface for efficient heat transfer. The slag cools rapidly from about 1450°C to 650°C, ensuring vitreous solidification, which is required if the slag is to be used by the cement industry.
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Reactivity and performance of dry granulation blast ...
The dry granulation slag were ground using ball milling, and then, the slag powder were mixed with clinker. Fig. 2 shows particle size distributions for cement clinker and dry granulation slag with different milling time, which were determined by using a laser diffraction particle size analyzer. The particle size distribution for dry granulation slag with 20-min …
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Dry Granulation: The Definitive Guide - SaintyTec
Dry Granulation:The Definitive Guide Do you want to be an expert in dry granulation process? If yes, then this is the BEST guide for you. Reason: I am going to take you through an in-depth analysis of critical aspects about dry granulation techniques. From the definition, basic principles, advantages, disadvantages, machines, practical applications to factors … Dry …
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Dry Granulation of Blast Furnace Slag for Energy Recovery ...
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.
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Modeling on Dry Centrifugal Granulation Process of Molten ...
Lots of iron molten slag from blast furnace can be produced during iron making process. It is generally cooled by water quenching method which causes many problems, such as water consumption, serious pollution, energy wasting etc. To solve these problems, much more attention has been paid to various dry granulation methods.
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Design and Operation of Dry Slag Granulation Pilot Plant ...
12%Dry granulation could convert molten slag to SCM and also recover a large fraction of the heat in molten slag. Dry Slag Granulation The concept of dry granulation is that molten slag is atomized under centrifugal forces on a spinning disc, and the liquid droplets generated are rapidly quenched and solidified using air to produce solid slag ...
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dry slag granulation - dry slag granulation for sale.
dry slag granulation catologs and dry slag granulation manufacturers - 40 dry slag granulation Manufacturers, Exporters & suppliers from China
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Dry Granulation of Blast Furnace Slag - Steel360
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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Water: Industry's forgotten sustainability challenge ...
But a new dry slag granulation process, developed by Primetals Technologies, part of MHI Group, could break the industry's heavy reliance on water. So how does it work?
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Dry slag granulation with energy recovery - From inception ...
Paul Wurth has approached the topic of dry slag granulation with a simple but effective method in which steel spheres and liquid slag are mixed to …
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A Review of Granulation Process for Blast Furnace Slag
11ügranulated slag Figure 2. INBA process. 4 Dry granulation process On the blast furnace slag treatment technology, for a long time, water quenching process has token the leading position. However, there are many defects of water-quenching slag method, which can be roughly concluded as follow: a mass of sensible heat unrecovered, high
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Dry slag granulation: producing valuable by-products …
dry slag granulation pilot plant is outlined below: Process Air Supply A radial fan is installed to supply the granulator and the various air cooling chambers with process air. Based on the thermal balance of the granulator an air amount of maximal 180,000 Nm³/h is provided to cool the granules down to target temperature. This air amount and ...
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SMS group : Non-ferrous metals
dry slag granulation (dryslag), dry slag granulation with energy recovery (PowerSlag) Leaching: Solvent extration, hydrometallurgical solutions: Recycling units: WEEE-recycling plants (BlueMetal), rod production our of scrap (BlueRod), anode production out of scrap (BlueAnode)
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