6/11/2019· Our dry slag granulation technology involves pouring molten slag from above our rig down to a spinning disc. That disc is spinning at high speed and it atomises the molten slag into small granules. [Image changes to show molten slag being atomised and collected in the taurus]
Another technology that has the potential to make steelmaking greener is “dry slag granulation”, which has been under development at CSIRO since 2002. DSG takes molten blast furnace slag and atomises it under centrifugal forces with a spinning disc, creating glassy granules that
Dry granulation of liquid BF slag is being developed in many countries along with heat recovery process. 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
Electric Arc Furnace Slag, Dry Granulation, EAF Slag Recycling Abstract The iron and steel industry has since the most remote times produced emissions and waste products which sometimes have been successfully used in different fields of application. A good example are Etruscan metallurgical slags, tens of meters thick in some places, which extended to the coastline in the Gulf of Baratti in
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 achieve fast cooling of the blast furnace slag
5/05/2013· The processes differ in the method of dewatering of the wet granulated slag. Today granulation of molten BF slag is the well accepted technology and is being used in most of the blast furnaces around the world. In India the credit of commissioning the first cast house slag granulation plant goes to Visakhapatnam Steel Plant when the first blast
The dusty slag leads to challenges in material handling, metals recovery, and emissions control. Some operations use slag additives to stabilize slag, but this solution is expensive and can limit the end use of slag due to inclusion of toxic elements. Air granulation was hypothesized as a water-free method for stabilizing AOD slag via rapid
However, steel slag quality varies and it is difficult to process, which limits its use. If the total worldwide BOF and EAF steel slag resource of 100 Mt to 200 Mt per yearwas used this way, the CO 2 reduction potential would be 50 Mt to 100 Mt per year (IEA, 2008). The use of steel slag as a cementing component should be given a priorityfor
Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.
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
Tenova Pyromet has vast experience in the design and construction of wet granulation plants. The wet slag granulation process involves pumping water into the slag cold runner via a blower box to quench the molten slag. The in-house designs have been proven in numerous applications and have shown to be both robust and reliable.
17/05/2019· Slag granulation system produces granulated slag, which is mainly used as a raw material for cement and concrete aggregate, by quenching molten blast furnace slag with water. Paul Wurth Group (hereinafter “PW”) has more than 260 references worldwide for the supply of slag granulation systems and INBA dewatering drums. Based on PW’s
The vision for a cleaner, greener and more productive steel industry, moved a step closer with the recent signing of an agreement with a company in China to scale-up CSIRO’s dry slag granulation (DSG) technology.
18/01/2013· GRANSHOT® Metal Granulation at Befesa ScanDust, Sweden.
What is Slag? There are two distinct types of slag produced at the BlueScope Steel Port Kembla Site; Blast Furnace Slag and Steel Furnace (or BOS) Slag. BLAST FURNACE SLAG. Iron is extracted from iron ore in a blast furnace by a process known as reduction. The raw materials iron ore, coke and fluxes are fed into the top of the furnace. Air
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.
With the demand for granulated slag continuing to grow and the environmental constraints getting more severe, Paul Wurth considered it a must to further improve the granulation technology in order to provide customers with state of the art installations.
24/05/2019· Turkey: Erdemir Group has ordered new INBA slag granulations systems as part of an order for two new blast furnaces (BF) from Luxembourg’s Paul Wurth for its Ereğli and Iskenderun integrated steel plants. At both sites a new furnace will replace an older production unit. The new blast furnaces are scheduled for blow-in in March 2021 and May 2021 respectively.
Granulated blast furnace slag Mineral Products Association Molten slag taken from the bottom of the furnace is granulated. Granulation Granulate is produced in modern, high cost, state of the art granulating plants which are computer controlled and environmentally friendly.EAF carbon steel slag.
Baosteel Slag Short Flow technology used for granulation of converter and electric arc furnace steel mill slag; Joint marketing and Siemens already offers solutions for slag granulation from pig iron production in blast furnaces. The process is already in use at Baosteel and several other Chinese steel...
22/06/2017· China: Hebei Zongheng Group Tangshan Fengnan Iron & Steel has ordered Inba slag granulation and dewatering equipment as part of a new 12Mt/yr iron plant. Capital Engineering & Research Incorporation (CERI), the general contractor, has signed two contracts with Paul Wurth for engineering and supply of four sets of Central Feed Bell Less Top charging systems as well as slag
Blast Furnace Slag Granulation Saint-Gobain ceramic materials extend the lifetime of slag granulation equipment over traditional refractory lined and hardened steel components. Abrasion and corrosion can hinder operational efficiency and increase downtime.
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. The INBA system comprises two main components
Fig.7- Dragon Steel No.2 Blast Furnace Stove Cross Over. Fig.8- Dragon Steel No.2 Blast Furnace Tuyere Stocks . Fig.9- Dry Slag Granulation Plant. Intelligent automation for ironmaking. The blast furnace process control system in combination with the blast furnace optimization system creates the next level in intelligent blast furnace automation. The optimal interaction between sophisticated
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