Opening Hours : Providing solution design within 24 hours

Call Now

0086-21-58385887

dry slag granulation

  • Home
  • dry slag granulation

THE DRY BLAST FURNACE SLAG GRANULATION AS …

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 blastfurnace slag is the byproduct of the ironmaking process.

Get Price

(PDF) Dry slag granulation with integrated heat recovery

Process flow diagram for SVAI/Primetals Technologies' dry slag granulation system with heat recovery and steam generation[42,43] (color figure online) Samples of wet and dry granulated iron blast ...

Get Price

Slag Granulation Machines China Meipaly Heavy Machinery

slag granulation process pdf Shanghai Xuanshi 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 …

Get Price

Granulated Blast Furnace Slag (GBS) YouTube

May 06, 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.

Get Price

RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: A …

Dry granulation offers advantages over these common slag handling practices, including the production of byproducts, the recovery of thermal energy, and the eliminated consumption and safety hazards of water.

Get Price

Valorisation Symposium

Proceedings of the Fourth International Slag Valorisation Symposium Zero Waste 1517 April 2015 Leuven, Belgium Editors Annelies Malfliet and Yiannis Pontikes

Get Price

Granulation Wikipedia

Granulation is the process of forming grains or granules from a powdery or solid substance, producing a granular is applied in several technological processes in the chemical and pharmaceutical industries. Typically, granulation involves agglomeration of fine particles into larger granules, typically of size range between and mm depending on their subsequent use.

Get Price

Forging a future in green steelmaking CSIRO

Mar 16, 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).

Get Price

Paul Wurth wins FEDIL Environment Award 2013 | Steel Times ...

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 …

Get Price

CuttingEdge ByProduct Recycling for Iron Steelmaking

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 drygranulation technology using air to cool molten slag and recover the lost heat energy.

Get Price

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 cementmaking and hot ...

Get Price

(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

Get Price

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.

Get Price

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

Feb 15, 2020· Methods. The solid slag particles from dry granulation were ground in a ball mill. Then, the slag powder was mixed with cement clinker. The ball mill used a fixed rotating speed of 250 rpm, and the diameters of the metal balls were 5 mm, 8 mm, 10 mm, 12 mm, and 15 mm, with mass fractions of 30%, 25%, 25%, 10%, and 10%, respectively [].

Get Price

Review of 14th Global Slag Conference 2019

Mar 27, 2019· Glass content in dry granulated slag is around 95%, compared to 98% for wet granulated slag. There is no significant variation in strength development between dry and wet slag granulation, nor in final compressive strength or in heat of hydration.

Get Price

Feasibility of Rotary Cup Atomizer for Slag Granulation

At the present molten slag from a blast furnace () is granulated by impinging much water without any recovery of its much sensible heat (1823K), polluting water and atmosphere. To solve these problems, we studied the dry granulation of molten slag by Rotary Cup Atomizer (RCA), in …

Get Price

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

Aug 09, 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 ...

Get Price

Dry Slag Granulation: A Path to Improving the Safety and ...

Here, dry granulation processes also offer advantages including the production of byproducts which hold value in both their chemical content and physical properties and heat recovery. Dry granulation, therefore, augments the methods by which slag may be valorized over traditional processing methods. Contact us for more information

Get Price

Some Fundamental Aspects of Dry Slag Granulation Process

Abstract: 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.

Get Price

Heat Transfer in Fluidized Beds in a Dry Slag Granulation Unit

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 ...

Get Price

Dry Granulation of Blast Furnace Slag Steel360 News

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.

Get Price

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 countercurrent moving packed bed heat exchanger, where they are further cooled and finally discharged at close to ambient temperature.

Get Price

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.

Get Price