dry granulation copper slag

After high-temperature slag particles are obtained on the basis of dry granulation, researchers study physical and chemical recovery methods around the waste heat recovery of high-temperature slag particles [14,15]. In a physical way, taking air and water as heat transfer media, the waste heat is recovered by the gas–solid heat transfer of ...

However, it has not been adapted yet to treat copper slag in any copper smelter worldwide.1,2 Despite the fact that the current process to produce granulated slag at Atlantic Copper is a usual and successful process, several drawbacks related to the use of ... dry slag granulation and energy recovery _, AISTECH, 2016. 2. S. Faucher, S ...

water to cement ratio used in this study was 0.3. The concrete was made with copper slag contents varying between 0 and 40 wt% in steps of 10 wt%. A horizontal inclined drum was used to mix the materials. First, the dry materials (cement, copper slag, and aggregates) were mixed in this inclined drum with horizontal rotation for 60 seconds.

12%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 the emission of H 2 S and SO 2 with steam. The dry slag atomisation by air blasting has been commercialised in recent years and provides some attractive features.

However, a dry slag granulation system had not yet been deployed in the non-ferrous industry. Although it has demonstrated success in the steelmaking industry for decades, adoption of a dry granulation solution in non-ferrous industries has been challenged by the technical risks associated with process uncertainties and by the financial risks ...

Tenova Pyromet has vast experience in the design and construction of wet granulation plants. The wet slag granulation process involves pumping water into the slag cold runner via a blower box to quench the molten slag. The in-house designs have been proven in numerous applications and have shown to be both robust and reliable.

Nickel-copper converter slag 'A'- 100 kVA and 200 kVA. Using converter slag from a nickel-copper plant, tests were carried out, in 1990, on a 100 kVA furnace (operated at 30 kW) and on a 200 kVA furnace (operated at 85 kW), at low additions of reductant (in order to minimize the reduction of iron).

Copper slag, an important by-product of the copper smelting process, is mainly composed of 2FeO SiO2, Fe3O4, and SiO2. Due to the sufficient metal oxides, copper slag is regard as a potential oxygen carrier (OC), which can be applied in chemical looping technology. This research proposed to use the granulated copper slag particles as precursor to produce oxygen carrier.

By WQ method, energy quality of molten copper slag is discounted. Copper slag particles should be fast cooled during granulation process. Thus, lots of air is blown in to make enough heat transfer with copper slag particles, which generate some exergy loss. And exergy efficiency of GWHR method is 76.9%.

Granulated copper slag is more porous and therefore has lower specific gravity and higher absorption than air-cooled copper slag. The granulated copper slag is made up of regularly shaped, angular particles, mostly between 4.75 mm (3/4 in) and 0.075 mm (No. 200 sieve) in size.

Gritankos has a complex process of making the Copper Slag Grit pure of quality for its costumers. This process is carefully observed by field experts. We divide the process of production the grit in 4 levels. Washing; Drying; Granulation; Packing

12%The CSIRO dry granulation process involves melt flow, droplet formation, and solidification in a complex and dynamic process. These must be controlled through appropriate design and operation of slag delivery, atomization, air delivery, and mechanical design and fabrication of the granulator.

Dry granulation and heat recovery from metallurgical slags. 09.10 Plenary Lecture. ... 10.40 Irene Ruiz-Oria – Atlantic Copper S.L.U. Dry copper slag atomisation: on site laboratory-pilot scale trials at copper smelter facility. 11.00 Jan Peter Schupsky – Forschungszentrum Jülich .

Aggregates were at laboratory air-dry condition. Waste copper slag from blast cleaning was used as a partial replacement of sand. Average chemical composition of the slag is as follows: SiO 2 30–45%, CaO 10–30%, Fe 2 O 3 <25%, Al 2 O 3 7–15%, MgO 2–8% and the granulation was much finer than in the case of typical river sand.

second granulation tank, one granulation unit can handle the slag of two tap holes. `Continuous filtering and evacuation of dewatered slag sand up to its storage facility without inter-ruptions for purging. ` High reliability. `Measurement of slag flow, due to the design of the drum and the dewatering process.

Dry granulation and heat recovery from metallurgical slags: ... A study on the leachability of metals from modified copper slag for added value applications: paper: presentation: Session 5: Metal recovery ... Irene Ruiz-Oria – Atlantic Copper S.L.U. Dry copper slag atomisation: on site laboratory-pilot scale trials at copper smelter facility ...

11ügranulated slag Figure 2. INBA process. 4 Dry granulation process On the blast furnace slag treatment technology, for a long time, water quenching process has token the leading position. However, there are many defects of water-quenching slag method, which can be roughly concluded as follow: a mass of sensible heat unrecovered, high

Replacing river sand with granulated copper slag in cement . Anbarasan, uthaya Banu . Asst prof, MIDAS, MARG Swarnabhoomi, [email protected] Head, Dept of civil engg, DMI Engg College, [email protected] . Abstract— Copper Slag is generated as a by-product material during production of copper metal from its ore. Utility of Copper ...

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

At the present stage, the dry granulation is the most promising method for molten slag heat recovery. As shown in Fig. 1, extremely high temperature liquid molten slag is pouring into the rotary disk, cup or cylinder, and then centrifugal force causes the liquid to spread outwards and subsequently broken into small droplets.These droplets are cooled by the cold …

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 ...

Grit blasting machine in India, projecting the abrasive blast substances i.e. copper slag, garnet sand, glass beads, cut wire shot, white aluminum oxide, etc. at a powerful movement of 65 to 110 m/second in a remarkably controlled approach.The grit Grit blasting machine in India, projecting the abrasive blast substances i.e. copper slag, garnet ...

The hot air can be recovered and used in other process operations. Compared with water granulation, dry granulation enables production of slag granules without water and significant waste heat recovery. Dry granulation of slags was first proposed more than 30 years ago and has been the subject of numerous studies [3,4,5,6,7]. In these studies…

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.

In a typical year, 17.6Mt of granulated BF slag is produced, 4.1Mt of air-cooled BF slag, 9.8Mt of BOF steelmaking slag, 2.4Mt of EAF slag and 5.5Mt of non-ferrous slag (including copper slag and ferro-nickel slag etc). One long-term trend has been the increase in granulation compared to air-cooling, so that around 80% of slag is now granulated.

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 sulfuric acid and about one part by weight of water for each part by weight of the slag material, and allowing the resulting mixture to react to produce a dry, solid material, containing the metal values of the …

The next work by Cooksey et al. provides an overview of the design and operation of a dry slag granulation pilot plant at CSIRO. This overview covers some of the R&D activities and findings on the design of rotating disk for atomization of melts, cyclonic fluidized granules, heat transfer, and recovery.

Copper slag is a voluminous waste material obtained during the manufacturing of copper (matte ... description it is an inert synthetic mineral manufactured by granulation in water of the slag arising from unique fumed copper smelting processes. It is an iron silicate with trace metals ... The dry materials comprising cement, sand (or copper ...

Dry copper slag granulation: on site prototype trials at copper smelter facility Monday, June 28, 16:20. Session Nickel/ Cobalt/ Vanadium Process Control By-Product Treatment + Slag + Developments in Environmental Protection Chair ...

For dry granulation of blast furnace slag, although some pilot testing had been performed, there was no application in metallurgical industry. Due to the difference in density, viscosity and surface tension, the granulation characteristics are different. Granulation characteristics of copper slag were studied by Liu . There was just a small ...

Based on PGM converter slag granulation performance, parallels to copper slag granulation are drawn and full-scale operation for copper slag is modelled using computational fluid dynamics (CFD). INTRODUCTION Typical slag management practices in the copper industry include dumping, slow air cooling, and water granulation, as shown in Figure 1.

Based on the assumptions made in carrying out the evaluation, the operating cost of the dry granulation process was estimated to be A$4.80/t slag for a …