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articleosti5610662, 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
A. Slag is the glass-like by-product left over after a desired metal has been separated from its raw ore. While slags are generally used to remove waste in metal smelting, they can also serve other purposes, such as assisting in the temperature control of the smelting, and minimizing any re-oxidation of the final liquid metal product before the molten metal is removed from the furnace
Feb 01, 2003 To date, several physical, pyrometallurgical, hydrometallurgical andor combinations of different processes have been proposed to recover the valuable metal alloys from slags while producing an...
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. The combination of waste heat recovery and conversion of slag into a saleable
A kind of liquid steel slag dry granulation device and sensible heat recovery method. Technical field. The invention belongs to technical field of ferrous metallurgy particularly relate to a kind of liquid steel slag dry granulation device and sensible heat recovery method, the liquid slag that also is applicable to the liquid slag that produces in the steelmaking process and the
A hydrometallurgical process for treating slag material, especially copper smelter slag material, comprises vigorously mixing the slag material with about one part by weight of
This dry process developed by Loesche for recovering metals from steel slag combines all the advantages of conventional processes Efficient and cost-effective metal recovery in the coarse range Virtually 100 metal recovery down to the finest fractions range by means of optimised dry grinding, classification and sorting technology
Jan 01, 2003 BF slag contains little metal and recovery of metal from it is not important. Steel slag is usually subjected to metal recovery prior to its application outside the iron and steel making process. By applying mineral processing technologies such as crushing, grinding, classification and magnetic separation, it is possible to produce steel scrap Fe 90 and
This dry process developed by Loesche for recovering metals from steel slag combines all the advantages of conventional processes Efficient and cost-effective metal recovery in the coarse range Virtually 100 metal recovery down to the finest fractions range by means of optimised dry grinding, classification and sorting technology
The invention provides a melting furnace slag quenching dry type granulation and sensible heat recovery generating system and a method using the same and belongs to the technical field of steel metallurgy furnace slag treatment and complementary energy recovery. The melting furnace slag quenching dry type granulation and sensible heat recovery generating system
Our custom-designed metal recovery MR plants are used to recover trapped metal from crushed slag. Discover more. Oily Mill Scale Processing. Ensuring the safe removal and processing of millscale from the casters and rolling mills. Discover more. Briquetting.
Our dry sensor-based metal slag sorting system processes and separates high volumes of material efficiently. Sorting algorithms can be varied easily, to separate different types of slag andor metal. The flexible modular design also allows plants to be mobile and means the system can dovetail with others to create a complete turnkey line.
higher metal recovery rates thanks to better liberation small environmental footprint How To Get Started. If youre looking to improve your metal recovery rates from your current incinerator bottom ash treatment plant, contact Sepro Urban Mining. Our Fine Slag Treatment Plant can be adapted to both wet and dry IBA treatments with no ...
Carbothermal reduction at elevated temperature near 1440 C helped recover a majority of the metal values e.g., Fe, Cu and Mo into the iron-rich alloy product which can be a feed material for steel making. On the other hand, the non-metallic residue, the secondary slag, can be used in the glass and ceramic industries.
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.
water and predict the release pattern of elements in the long term. Leaching of 2 Lkg dry slag 20 g slag, 40 mL deionized water was rst carried out for 6 h, followed by leaching of 8 Lkg dry slag 20 g slag, 160 mL deionized water for 18 h prior to ltration 0.45 m. The total time of contact between the sample and the leachant was 24 h.
recovery through the increased off gas air temperature. 3.2 The Concept Figure 1. Dry Granulation Concept. Dry slag granulation is based on molten slag atomisation using a variable speed rotating cup or dish see Figure 1. The slag is delivered on to the centre of the cup from a slag runner via a vertical refractory lined pipe.
Aug 09, 2014 BF slag. Portland cement, Glass content, Heat recovery, Rotary cup atomizer, slag granulation, Dry Granulation of Blast Furnace Slag for Energy Recovery Around 300 kg of liquid slag is produced as byproduct while producing one ton of hot metal in a blast furnace BF. This slag is at a temperature of around 1500 deg C and has a sensible heat of ...
METAL SEPARATION AT RECCO EMMELOORD. In our facility in Emmeloord, we have engineered a unique dry metal separation installation with a capacity of 600 tons per week. For our relations, we recycle the non ferrous mixed streams into single streams of heavy metals and aluminium with extremely high purity rates.
Sep 01, 2011 The trials for dry granulation of slag date back to 1930 , but the research surged in 1970s and 1980s in Europe and Japan, resulting in laboratory and pilot scale testing of several methods. In Section 3, the processes that have been proposed for energy recovery from slag based on the use of dry granulation are described. 2.2.
the physical and leaching properties, slag reduction for metal recovery, slag granulation for heat recovery and for dry reduced leaching of heavy metals, water granulation for production of raw materials for cement industry and transforming of hazardous wastes into useful slag formers. Some of these projects will be highlighted in this paper. 2.
Metal Recovery from Steelmaking Slag Qi Yu Master of Applied Science Materials Science and Engineering University of Toronto 2018 Abstract An experimental study was carried out to recover metal values from a steelmaking slag through air oxidation and magnetic separation. The oxidation of slag was carried out in both solid and
What is claimed is 1. A process for the recovery of metal values from copper smelter slag material which comprises mixing with agitation a unit part by weight of slag and about a unit part by weight of concentrated sulfuric acid to form an acid-slag mixture, incorporating in the acid-slag mixture about a unit part by weight of water, and allowing the mixture to react to produce a dry
ON-SITE SLAG RECYCLING. Slag processing, or also referred to as bottom ash recycling or IBA recycling, and metal recovery on your site are the first steps in the range of services that Recco offers. We engineer and manufacture a customized installation for temporary processing built up and installed from modular machinery or install a permanent system.
May 23, 2017 For a complete recovery of the metal quantities present, the slag must be finely comminuted ap- prox. 100 m in order to be able to separate even finely fused metal particles from the mineral slag matrix. For expensive metals such as stainless steel, this has already been performed in the past in a wet process with ball mills.
Processes for the dry processing of steel slags with LOESCHE mills for metal recovery and production of silicate composite material for use in the building materials industry ... addition to pure metal mostly between 3 and 10 , there are metal oxides and depending on the type of steel slag various mineral phases which can be partly ...
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