With a decrease in cement/slag ratio, the compressive strength for dry granulation slag cement mortar decreased, and then increased, reaching 96.4% of the compressive strength for dry granulation ...
Molten slag is broken up by supersonic air into droplets through the air quenching dry slag granulation technique. The breakup process of blast furnace slag directly determines the droplet diameter and the waste heat recovery. In order to gain deep insight into the granulation mechanism and visualize the breakup process, three …
DOI: 10.17580/cisisr.2022.01.21 Corpus ID: 250567121; Thermophysical processes in dry granulation of metallurgical slags @article{Panchenko2022ThermophysicalPI, title={Thermophysical processes in dry granulation of metallurgical slags}, author={Sergii Panchenko and Maxim I. Dli and Margarita V. Chernovalova and N. S. Kulyasov}, …
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 …
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 energy. Blast furnace slags are …
In foreign countries, the investigations of the possibility of dry granulation of slags are carried out for a long time. According to this procedure, hot slags contact with cooling gases (in particular,with air) [6–10]. The installa-tions for slag dry granulation (ISDG) prove to be much more efficient because they enable us to (almost completely)
A considerable amount of heat energy is contained in the molten slag tapped from blast furnace.At present,the BF slag is treated by impinging much water for granulation and the energy is wasted without recovery.Thus,dry granulation technology has attracted more and more attention.The basic problems and technical difficulties of dry granulation …
Dry granulation, as a new process of molten blast furnace slag (BFS) treatment, is an attractive alternative to water quenching. The performance of BFS obtained from dry granulation must be assessed.
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 …
9th Int. Conference on Molten Slags, Fluxes and Salts (MOLTEN12), May 2012, Beijing, China Some Fundamental Aspects of the Dry Slag Granulation Process Sharif Jahanshahi*, Yuhua Pan and Dongsheng Xie CSIRO Minerals Down Under National Research Flagship, Clayton, Victoria, 3168, Australia Abstract There is a growing …
Download Citation | Heat Exchange in the Granulation Chamber of an Installation for Slag Dry Granulation | In the blast-furnace production, fiery-liquid slags have temperatures of about 1400 ...
Ecomaister-Hatch has recently developed and brought to commercial scale a reliable and simple dry slag granulation that allows for simultaneous energy recovery from slag. …
Here we review common slag handling practices, the developments in dry slag granulation over the last three decades, introduce the Ecomaister-Hatch dry slag …
In foreign countries, the investigations of the possibility of dry granulation of slags are carried out for a long time. According to this procedure, hot slags contact with cooling gases (in particular, with air) [6,7,8,9,10].The installations for slag dry granulation (ISDG) prove to be much more efficient because they enable us to (almost completely) …
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. ... a case study in Mexico. 2024 • Carlos ...
The slag granulation area links the hot slag runner of the blast furnace and the INBA dewatering system. This link is directly accomplished through the use of ... Atizapan, MEXICO Phone: (+52) 55 1106 3463 pwmex@paulwurth ASIA Paul Wurth Metal Technology (Beijing) Co., Ltd Beijing, P.R. CHINA Phone: (+86) 10 8405 4400
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…
The methods of dry granulation of blast furnace slag using compressed air are known; they are characterized by air consumption 2,400 m 3/min and pressure 6.5 kPa [10, 11], as well as using whirled flow of gas suspen-sion, which …
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 …
Here we review common slag handling practices, the developments in dry slag granulation over the last three decades, introduce the Ecomaister-Hatch dry slag granulation process, and...
The design and erection for Phase 2 pilot-plant at the site of voestalpine Stahl in Linz has been fin ished in May 2017 followed by a intense commissioning phase. Since Ju ne 2017 discontinuous batch campaign operation are executed to gain know-how and allow for process optimization for lat er commercialization of the process.. This paper su …
CAMP-ISIJ, vol.18 (2005), pp.1088-1091 The experimental procedure involved melting the slag in a graphite crucible (Φ100 ID x 200 mm) using an induction furnace to heat the slag to the desired ...
Deep cut of CO 2 emission involves with not only technological revolution of producing iron and steel, but also exploiting energy in byproducts and off-process …
Semantic Scholar extracted view of "Dry slag granulation with integrated heat recovery" by S. Jahanshahi et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 220,771,881 papers from all fields of science. Search. Sign ...
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 ...
The steel industry is an energy-intensive and CO2-intensive industry and the greenhouse gas (GHG) emission in the steel industry was more than 2.95 billion tons in 2012, which faces the great…
Gas quenching dry slag granulation process is an energy-saving environmental protection method for waste utilization and waste heat recovery of molten slag, and the molten slag is broken up by ...
practices, the developments in dry slag granulation over the last three decades, 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. Keywords: Dry slag granulation; Atomization; Energy recovery, Steam explosion.
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 …
PDF | On May 27, 2012, Sharif Jahanshahi and others published Some fundamental aspects of the dry slag granulation process | Find, read and cite all the research you need on ResearchGate
The slag is a by-product of steel industry. Experimental trials of dry granulation process have been widely performed to granulate Blast Furnace (BF) slag, in addition to, heat recovery from ...
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 …
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 ...
