Water plays a crucial role in mineral beneficiation, and thus dewatering the tailings from mineral processing plants has great importance. This paper discusses the influence of chemical conditions (pH, flocculants, surfactants, and coagulants) on the filtration performance of iron ore tailings.Web
قرأ أكثر
Introduction. Mine backfilling plays a significant role in improving ground stability, increasing ore recovery, and controlling underground pressure and thus has both economic and environmental benefits [1–3].Therefore, mine backfilling is being widely used all over the world in many underground mines [4–6].The development of backfilling …Web
قرأ أكثر
mechanical dewatering, and therefore the paper discusses both issues as equally important sides of the same coin. Recent interest in iron ore ultrafines processing studies suggests …Web
قرأ أكثر
Vacuum filtration is commonly used for dewatering of iron ore fines, and as with all filtration processes performance decreases with particle size. Significant improvements are …Web
قرأ أكثر
McLanahan's director of process engineering for mineral processing, Scott O'Brien, explained the rationale for using this approach to dewatering. O'Brien said while using a thickener on its own will enable an operator to …Web
قرأ أكثر
The complete dewatering solution provided by Xylem consists of two submersible Flygt 3351 pumps and four LS350/450 Flygt pumps, delivering a total pumping output of more than 2.5 megawatts. These pumps are housed in a floating pumping station in the center of the flooded mine and in a dry station on land. Xylem also supplied 20 …Web
قرأ أكثر
Semantic Scholar extracted view of "An investigation on dewatering kinetics of ultrafine coal" by D. Tao et al. ... Investigation on the effects of chemical pretreatment on the iron ore tailing dewatering. ... Factors effecting a loss of flocculation activity of polyacrylamide solutions: Shear degradation, cation complexation, and solution aging.Web
قرأ أكثر
Flocculants play an important role in the solid-liquid separation of tailings slurry, and its dosage directly impacts on the dewatering efficiency of tailings. Herein, the influence of ultrasonication on flocculant dosage in dehydration process of unclassified tailings was studied. The effects of flocculant dosage on initial settling rate (ISR), …Web
قرأ أكثر
Some research regarding vacuum dewatering has been conducted on different types of ores, but most of them were focused on iron ore fines and the influence of flocculent additions [10] [11] [12 ...Web
قرأ أكثر
Ceramic filtration is used for the final dewatering stage of the concentrate product at a Brazilian iron ore operation. This research was aimed at improving the understanding of the suitability of ceramic filtration technology for full-scale operation, to identify factors that positively and negatively impact filter efficiency, and to evaluate …Web
قرأ أكثر
transportable moisture limits (TML) and lower quality ore bodies requiring beneficiation with fines-rich subaqueous deposits, can all be associated with the increase in overall fines content and consequent high moisture processing issues of iron ore filter feed. Solution In the first example considered, it was found that a high propor-Web
قرأ أكثر
The dewatering of iron ore is a high tonnage application in general requiring high energy input. Choosing a ceramic capillary action disc filter can offer decreased specific energy consumption in ...Web
قرأ أكثر
Dewatering iron ore concentrates is a crucial step in enhancing their handling and transportation by removing excess water. The selection of a suitable dewatering method …Web
قرأ أكثر
If too much water mixes with iron ore, it becomes low grade and unsuitable for export, which results in massive revenue losses. Also, surface dewatering processes are extremely costly if the water is very high. The accepted dewatering process within the region is to pump the water out through boreholes. However, this is not without its …Web
قرأ أكثر
ANDRITZ SEPARATION provides state-of-the-art solutions for solid / liquid separation to the mining and minerals industry. Whether an operation produces gold, coal, iron ore, potash or aluminum, ANDRITZ SEPARATION aims to help improve products, boost throughput, and reduce operating costs. ANDRITZ SEPARATION provides a 360º range …Web
قرأ أكثر
Thus, considerable quantities of ultrafine particles of iron oxides, silicates, and aluminumsilicates find their way to tailing suspension, whose total iron content can vary from 40% to 50% [5 ...Web
قرأ أكثر
Introduction. Nowadays, the most challenging issue in the iron ore mining industry is tailings management and water recovery. Due to a number of problems such as water scarcity for processing, space limitation for tailings disposal and the environment problems, dewatering of tailings in the iron beneficiation plant is an important issue …Web
قرأ أكثر
To study the mechanism of reverse percolation and drainage of unclassified tailings, improve the disposal concentration of tailings and solve the bottleneck in the development of filling technology, this study performed semi-industrial flocculation and sedimentation tests using macroscopic continuous thickener tests and a self-developed …Web
قرأ أكثر
Keywords: iron ores; dewatering; flocculation; thickener design 1. Introduction In mineral, metallurgical, chemical, and electrochemical industries, dewatering is one of the most economically sig-nificant unit operations. The conventional dewatering tech-niques are based on single particle settling, when the solidsWeb
قرأ أكثر
Iron minerals exhibit strong interactions with water, mainly due to the coordination of surface iron atoms by aquo ligands and their relatively low molecular-scale roughness, in most cases. Such characteristics help explain the behavior of adsorption of reagents and the difficulties in dewatering and drying iron ore.Web
قرأ أكثر
Due to the final grinding fineness could be 90–95% smaller than 325 mesh (45 μm), substantial ultrafine particles are released in the process water. The process water …Web
قرأ أكثر
The concept is based on a project that the company undertook for the Swedish iron-ore producer, LKAB, involving the installation of equipment at a dewatering station, 1,368 m below surface. The spiral dewaterer is basically an open trough with arrangements to transport settled solids in a continuous operation, and replaces a traditional ...Web
قرأ أكثر
This paper reports an experimental investigation on the effect of anionic, cationic and non-ionic surfactant on the dewatering behaviour of iron ore fines (-6 mm) …Web
قرأ أكثر
A total of 6 parallel lines process 9500 t/h of ore. Screening equipment is installed after the primary crusher, after the scrubber and after the tertiary comminution stage to separate the iron ore into a dry coarse fraction (8 – 40 mm) and a wet fine fraction (> 1 – < 8 mm). The fraction < 1 mm passes through another washing stage.Web
قرأ أكثر
When the velocity was less than 0.07 m/s, the moisture was reduced by the reduction of the layer thickness, and the dewatering time was not the main factor. When the velocity exceeded 0.07 m/s, the influence of the layer thickness on the dewatering was weakened, the material could not obtain sufficient dewatering time.Web
قرأ أكثر
Abstract. In mineral processing, dewatering and drying are critical aspects from the technical and economical viewpoints. These operations should be considered carefully to achieve optimal water ...Web
قرأ أكثر
By discharging the water of the iron ore tailings by the electroosmosis method, the solid content was increased from 43.01% to 87.63%. ... based on which a solution was developed to maximumly ...Web
قرأ أكثر
This paper reports an experimental investigation on the effect of anionic, cationic and non-ionic surfactant on the dewatering behaviour of iron ore fines (− 6 mm) and also plant trials with the selected surfactant. The surfactants taken up for studies are …Web
قرأ أكثر
With proven expertise in dewatering technology, our solutions are helping customers achieve optimum product quality during the entire mining operations. Enabling economic and environmental sustainability with Dewatering Solutions Dewatering is a vital step in mineral processing. Removal of the moisture contentWeb
قرأ أكثر
The required dosage of flocculent solution was added and the slurry mixed properly. Then the cylinder was kept in an undisturbed situation to form an interface between the flocs and supernatant. ... Patra AS, Makhija D, Mukherjee AK, Tiwari R, Sahoo CR, Mohanty BD (2016) Improved dewatering of iron ore fines by the use of surfactants. …Web
قرأ أكثر
Keywords: Ultra fine iron ore; dewatering; flocculation; thickener design . Page 1 of 33. [email protected]. ... Anionic pol ymers work better when the particulates in solution have .Web
قرأ أكثر
Kumba Iron Ore Limited production and sales report for the quarter ended 31 March 2016. ... Parsons Brinckerhoff's next-generation mine dewatering solution aimed at addressing the limitations of ...Web
قرأ أكثر
This paper reports an experimental investigation on the effect of anionic, cationic and non-ionic surfactant on the dewatering behaviour of iron ore fines (− 6 mm) …Web
قرأ أكثر
In this study, the dewatering of an iron ore tailing by applying different voltages by the electroosmosis method was investigated in the laboratory environment. By discharging the water of …Web
قرأ أكثر
The three flocculants were prepared as a solution of 2.5 g/L using distilled water. ... Behaviour of amylopectin and amylose components of starch in the selective flocculation of ultrafine iron ore. Int. J. Miner. Process., 47 (3–4) ... Studies on the effect of flocculant adsorption on the dewatering of iron ore tailings. Chem. Eng. J., 173 ...Web
قرأ أكثر