Therefore, there has been an increasing interest in processing molten slags without using water quenching, so-called dry slag granulation (DSG). 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 ...
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 …
DOI: 10.1016/J.APPLTHERMALENG.2016.07.049 Corpus ID: 114990126; Experimental study of rotating dry slag granulation unit: Operating regimes, particle size analysis and scale up @article{Dhirhi2016ExperimentalSO, title={Experimental study of rotating dry slag granulation unit: Operating regimes, particle size analysis and scale …
Using dry slag granulation at integrated steel plants 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 alternatively of about 6 MW electric …
In leading countries around the world, research is being conducted on the development of dry slag granulation plants (DSGPs), which enable production of dry granulated slag and recovery of the physical heat contained in blast-furnace slag [1,2,3,4,5].The idea of dry slag granulation arose over thirty years ago, as described in …
dry granulation of Linz-Donavitz (LD) slag, under research, has been discussed, using experimental methodology. Initially, the first two stages of experimental setup, with water as the working
After a thorough comparative analysis of various treatment technologies, it can be concluded that centrifugal granulation affiliated with dry granulation is the optimum process, with smaller slag ...
Semantic Scholar extracted view of "Dry slag granulation with integrated heat recovery" by S. Jahanshahi et al.
Key words: slags, dry slag granulation, heat recovery. 1. Introduction The steel industry produces hundreds of millions of tonnes of molten slags each year which are currently cooled with air or ...
The iron and steel industry produces a waste product, slag. Dry Spinning Disc Granulation (DSDG) process has been experimentally tried, widely, for the granulation of Blast Furnace (BF) slag, with ...
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 route of processing …
Some Fundamental Aspects of the Dry Slag GranulationProcess . Sharif Jahanshahi*, Yuhua Pan and Dongsheng Xie . CSIRO Minerals Down Under National Research Flagship, Clayton, Victoria, 3168, Australia . Abstract: There is a growing interest in development of a dry slag granulation (DSG) process so as to recover the
The gas quenching dry slag granulation technique can successfully produces fine granules that meet the follow-up utilization and can effectively improve the waste heat recovery rate, provided the airflow velocity and mass flow rate are carefully controlled. Therefore, the gas quenching dry slag granulation technique has broad …
Dry slag granulation is the key to molten slag heat recovery. In this paper, we will present our current status on BOF slag modification and dry granulation. Therefore, the paper will be composed ...
For slag handling to become inherently safe, our industry must eliminate the potential contact of water with molten slag. This is today feasible with the advent of dry …
182 Journal of Sustainable Metallurgy (2019) 5:181–194 1 3 suchasairblasting,rotarydrum(s),andspinningdisc/ cup.Theslagdropletswerethenquenchedandsolidied
Dry granulation requires far less cooling water, it is more compact and allows recovery of waste heat/energy from the molten slag. Dry granulation also avoids …
Research has been conducted outside of Russia on the design and development of dry slag granulation plants (DSGPs) [1,2,3,4,5], but international publications provide no methods for calculating and designing such plants.The dry granulation method of blast-furnace slags, which was first proposed more than 30 …
The LD/BOF slag, in its granulated form, has many applications in construction industry [], like roads, rail-way track ballasts, road stones, etc.Two broadly classified methods of slag granulation [] are wet and dry granulation methods.Between these, the Dry Slag Granulation (DSG) methods [2,3,4,5] are currently under rigorous …
Dry granulation offers advantages over these common slag handling practices, including the production of by-products, the recovery of thermal energy, and the eliminated consumption and safety...
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 …
introduce the Ecomaister-Hatch dry slag granulation process, and elaborate on future applications of the technology in the processing of argon oxygen decarburization and blast furnace slags.
In this study, the effectiveness of dry slag granulation was studied using a mixture of rosin and paraffin wax as an analogue for blast furnace slag. The effects of various parameters such as rotational speed of the disc, diameter of the disc and flow rate of the molten liquid have been studied. Different ranges of operating conditions in terms ...
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 ...
Experimental results on the dry slag granulator pilot plant have demonstrated that the process can effectively produce glassy slag granules from molten iron blast furnace slag, and recover significant …
Each year, approximately 400 million tons of blast furnace slag is produced worldwide with a tapping temperature of around 1,500°C. It is normally used as a substitute for cement clinker or as an aggregate material in road construction. Currently, the slag is granulated in wet-granulation plants using large volumes of water and to date, it has …
T1 - Dry Slag Granulation - Investigations on the Behaviour of Liquid Blast Furnace Slag in Combination with Heat Recovery. AU - Kofler, Markus. N1 - no embargo. PY - 2014. Y1 - 2014. N2 - Blast furnace slag is well known as by-product of hot metal production in integrated steel and iron mills. About 300 million tons of this slag is produced ...
Dry granulation process, as an environmentally friendly method with high-efficiency heat recovery, have attracted widespread attentions. In this paper, the water quenching and dry granulation...
Steelmakers are squeezing the last bit of efficiency out of the process – hinged ladles lids are an easy way to help. The hinged ladle lid is a passive device that attaches or remove lids from steelmaking ladles during ladle movement on transfer cars. The hinged lid allows dumping of slag with no extra crane moves required.
Our dry slag granulation technology transforms molten slag from steel furnaces into granules using air stream, eliminating the need for water. The flexibility of the process allows obtaining granules of different sizes and …