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@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 slag .
Read more; slag crushing process for recovering metal . slag crushing process of induction furnace. 2014 slag crushing machine manufacturer in China crusher slag crushing . Blast furnace - Wikipedia A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead ...
Sep 01, 2011· Metallurgical slags are conventionally divided into ferrous and non–ferrous, based on the metal produced in each process. The typical chemical composition and generation rate of various slags for the major metal manufacturing processes are provided in Table 1, Table 2.As seen, the relative amount of slag produced per ton of iron/steel is lower than the non-ferrous operations.
Liu et al. [14] investigated the molten slag granulation for waste heat recovery from various metallurgical slags including BF slag. In the paper, physical simulation of molten slag granulation by ...
and achieve full slag utilization, it will favor the sustainable development of the metallurgical industry.1) The comprehen-sive recovery of multisource metallurgical wastes is likely to be one of the most effective methods to achieve this goal. Nickel slag is a metallurgical solid waste from the nickel smelting industry.
The invention discloses a metallurgical molten slag granulation treatment system, which comprises a rotary drum (2), a vibrating chute (3), a screening device (4), a chain grate machine (5) and a heat-stewed tank (6), wherein the rotary drum (2) is arranged at an outlet of a slag trough (1), and molten slags in the slag trough (1) are dripped on the rotary drum (2) so as to be cooled, and are ...
The difficulties of molten metallurgical slag (including blast furnace slag and steel slag, etc.) heat recovery caused by low thermal conductivity and high enthalpy are analyzed.
An overview of recovery of metals from slags. Shen H(1), Forssberg E. Author information: (1)Division of Mineral Processing, Luleå University of Technology, S-97187 Luleå, Sweden. [email protected] Various slags are produced as by-products in metallurgical processes or as residues in .
slag is being formed rises by approximately 30°C. Since this is within the design range of 70°C or less, the designed cooling capacity can be obtained. 3. Development of Slag Heat Recovery Process 3.1 Design of Slag Heat Recovery Pilot Plant The slag heat recovery pilot plant which was built in this development is a counterflow packed bed ...
Johannes Rieger Area Manager +43 3842 402 2280 johannes.rieger [at] k1-met. Johannes Rieger leads project activities in Research Area 1 Raw Materials and Recycling (process development, characterization and utilization of raw materials and residuals in iron and steel industry) and 2 Metallurgical Processes (converter, continuous casting, electro slag remelting, copper refining).
Aug 09, 2016· 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.
The efficiency of the recovery phase depends on both temperature conditions and the composition slag, and introduced additions. The exploration of the possibility and feasibility of the liquid-phase restoration for steelmaking waste slag of the Zlatoust Metallurgical Plant applying the induction heat installation is the aim of this study.
Dec 09, 2019· Metallurgical slags are produced at a massive rate of over 750 Mt/year, and carry a thermal energy equivalent to 40 Mt/year of coal. The potential mineral and thermal energy values of slags are in the order of $22 b and $3–6 b per year. Such attractive figures, together with tightening legislation on disposal of slag and the carbon footprint associated with the loss of mineral and energy ...
Undreamt of metallurgical treasures. Slag and dross, which occur in significant amounts in every metallurgical process, have a very bad reputation as partially hazardous residues. Often rightly so, since the high heavy metal content does not allow its use as a mineral product.
Heat recovery from slag has gained attention of metal extraction processes. A direct method to r ... Direct Heat Recovery Process ... Metallurgical slags are the largest by-pn extraction processes. The total amount of metallurgic at up to 422 million tonnes contaming up to 222
Dec 09, 2019· Furnace classification by heat source – Heat is generated in the furnace to increase the furnace temperature to a level which is higher than the temperature needed for the process, either (i) by the combustion of a fuel, or (ii) by conversion of electric energy to heat. Some furnaces also utilize the waste heat from the metallurgical process.
Pyrometallurgy is a branch of extractive metallurgy.It consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. Pyrometallurgical treatment may produce products able to be sold such as pure metals, or intermediate compounds or alloys, suitable as feed for ...
heat recovery metallurgical process slag - ME . heat recovery metallurgical process slag - bio7-biogas. Economics of Slag Heat Recovery from Ferronickel Slags. Hatch supplies engineering, project and construction management services, process and business consulting and operational services to the mining, metallurgical, Economics of Slag ...
A metallurgical furnace, more commonly referred to as a furnace, is a device used to heat and melt metal ore to remove gangue, primarily in iron and steel production. The heat energy to fuel a furnace may be supplied directly by fuel combustion, by electricity such as the electric arc furnace, or through induction heating in induction furnaces.There are several different types of furnaces used ...
The invention discloses a metallurgical molten slag granulation treatment system, which comprises a rotary drum (2), a vibrating chute (3), a screening device (4), a chain grate machine (5) and a heat-stewed tank (6), wherein the rotary drum (2) is arranged at an outlet of a slag trough (1), and molten slags in the slag trough (1) are dripped on the rotary drum (2) so as to .
So, not only the sensible heat of the liquid slag is lost, but it is also necessary to have an upstream slag drying unit for using the granulated BF slag in cement industry. Drying process normally consumes heat energy up to 72Mcal/ton of slag. Dry granulation of liquid BF slag is being developed in many countries along with heat recovery process.
Sep 01, 2011· Metallurgical slags are conventionally divided into ferrous and non–ferrous, based on the metal produced in each process. The typical chemical composition and generation rate of various slags for the major metal manufacturing processes are provided in Table 1, Table 2.As seen, the relative amount of slag produced per ton of iron/steel is lower than the non .
granulation and heat recovery technology. 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 elaborate on future applications of the technology in the processing of argon oxygen decarburization and blast furnace slags.
Abstract. Slag dumping and water granulation are the most commonly used slag treatment methods in the metallurgical industries. In both processes, water is present (by desire for cooling and dispersion or as a result of rain accumulation) and thus equipment and operations are designed to minimize and mitigate the risk of steam explosions resulting from the inappropriate contact of slag with water.
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