Pipeline transportation of iron ore fines slurry at high solids concentration from the source to the site of its utilization has technological as well as economical implications. In the present scenario, major Indian iron and steel producers are aiming for transporting the run-of-mine (ROM) iron ore through slurry pipelines at a competitive price.
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The study reveals that the blending of fines with coarse iron ore at a controlled particle size distribution supplemented by small dosages of low-cost additives may be employed for preparation and transportation of high-concentration iron ore slurry with improved pipe economics. ... Figure 2 232 Rheogram of iron ore slurry at different ...
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— This paper has a special emphasis on the iron ore slurry and its rheological behaviors which are highly affected by several physical and chemical properties (particle shape, particle size ...
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— The dense media utilized for the dry separation of coarse iron ore should satisfy the following characteristics: (1) easy recycling and purification; (2) steady property and ... the iron ore particles were fed into the fluidized bed separator. In reality, the particle size of the fed iron ore was much larger than that of the separating medium. ...
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— Iron ore tailings (IOTs) are byproducts of the iron mining industry that have gained significant attention in recent years due to their potential for comprehensive utilization. This study investigates how …
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— This work presents the basic information needed to understand the history, the hydraulic concepts, and equipment used when planning, designing, and constructing long-distance slurry pipelines. Yearly these pipelines …
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— Iron ore tailings slurriesA set of iron ore tailings slurries containing a significant fraction of particles of size >30 μm were measured in a recirculating slurry loop (Coghill et al., 1997) using a combination of ultrasonic velocity, ultrasonic attenuation and gamma-ray density measurements, and the results analysed using the correlation method.
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— The present study demonstrates a comprehensive characterisation of an Indian iron ore sample to investigate the effect of blending coarse particles with fine particulate slurry on the rheology ...
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The study reveals that the blending of fines with coarse iron ore at a controlled particle size distribution supplemented by small dosages of low-cost additives may be employed for preparation and transportation of high-concentration iron ore slurry with improved pipe economics. Keywords: iron ore, high concentration, rheology, bio-additives
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— Beneficiation of a) iron ore tailings from 40 wt% slurry and b) 55% Fe iron ore slurry with NaOH-Na 2 SO 3-Na polyphosphate additives. These slurries had been allowed to settle for several days. These slurries had been allowed to settle for several days.
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— "Effect of particle size, blend ratio and some selective bio–additives on rheological behaviour of high–concentration iron ore slurry." In Proc., 21st Int. Seminar on Paste and Thickened Tailings, 227–238.
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— Parsi et al. [30] used Fluent to simulate the erosion caused by sand particles of two different sizes (150 mm and 300 mm) in a 76.2 mm pipe elbow with the air-water flow.
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— Eswaraiah et al. studied the settling characteristics of iron ore slurry with anionic, cationic, and ..., influenced by many factors, such as particle size, feed concentration, flocculant type, flocculant unit …
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— 1. Introduction. Slurry pipeline systems are widely utilized around the world as a feasible alternative to large-scale solids transport for conveying minerals such as fly ash, 1 iron ore (IO), coal, 2,3 lime stone, 4 copper concentrate, zinc tailings, 5,6 and other materials. IO fines play an important role in sintering 7,8 and palletization. 9,10 …
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Abstract: The influence of particle size, blend ratio and some selective bio-additives on the rheological behaviour of an Indian iron ore sample in a slurry concentration range of 60–75% by mass was evaluated. The rheological parameters were measured using a highprecision ThermoFisher Scientific HAAKETM RheoStressTM 1 Rheometer. The iron …
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— Recent years have witnessed growing research interest in applying rheology in grinding and flotation treatment of finely disseminated ores. Slurry rheology has long been identified as the comprehensive effect of inter-particle interactions, including their aggregation and dispersion states in slurry, which are more impactive under the fine …
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3) Viscosity Of Slurry: Sahoo et al. investigated on the basis of the ANOVA results procured, solid concentrations, particle diameter, microwave exposure time and shear rate were discovered to have notable effects on the apparent viscosity of iron orewater slurry, with shear rate striking the most substantial effect on apparent viscosity of ...
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— Generally speaking, three key points push the mining industry towards coarse particle treatment, these are: i) drastic environmental consequences of wet tailings dams and acid mining drainage (AMD) (Glen et al., 2021), ii) losing precious materials in coarse fraction sizes (Safari et al., 2017), and iii) enormous energy consumption in comminution …
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temperature, solid concentration, slurry viscosity, and particle size distribution (PSD)19−21 affectthe flowbehavior of the iron water slurry (IWS).22−24 The interaction of dispersant or surface-active agents with the slurry particle impacts the flow behavior of the slurry. Therefore, surfactant selection is critically important.
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grinding are expensive. Therefore, reduction in particle size should be minimized wherever possible. Figure 1 shows a typical relationship between the cost of slurry preparation and the degree of reduction of particle size for coal. The particle size is represented by a weighted mean particle size (Ref. 2) for con venience.
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— Oxidised pellets have become an indispensable high-quality charge for blast furnaces. Nevertheless, high-quality pellet feeds are becoming scarcer and scarcer. To broaden the range of sources of pellet feeds and reduce the production cost of pellets, more steel mills are predicted to use coarse iron ore fines with a relatively low iron grade and …
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— 1. Introduction. Chengde area in China is rich in magnetite and phosphorite resources. It is estimated that the resources of iron ore with phosphorus are up to 10 billion tons, but ore grades are relatively low such as magnetite grade 5%–6% and phosphorite grade 2%–3% (Tian, 2008).The Fe 3 O 4 in iron ore with phosphorus is recovered by …
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The enhanced cohesive force among iron particles in the concentrated slurry increases the slurry's viscosity. At higher concentrations, the iron particles flocculateand settle, …
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Iron ore tailing/slime (-150 μm) is produced after scrubbing and wet screening of a low-grade iron ore. Tailing beneficiation of iron ore has been addressed either by flotation or wet high intensity high gradient separation. The present study aims to recover iron values from discarded slime containing assay ~56% Fe, ~6.5% SiO 2, and ~7.0% Al 2 O 3
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The optimal proportion of coarse particles (38–75 μm) blending in the slurry suspension of fine particulate is observed at 40% (by weight), while in the case of the coarse particle …
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— The present study demonstrates a comprehensive characterisation of an Indian iron ore sample to investigate the effect of blending coarse particles with fine particulate slurry on the rheology ...
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— This paper reports and discusses the results of an experimental investigation on hydraulic transportation of iron ore concentrate and its effect on slurry wear, pure …
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— Flotation is one of the most essential and versatile methods in the iron ore concentration process. As the final product of the flotation process, the Fe content of the iron ore concentrate slurry is an important parameter that has a significant impact on pricing, moreover, online diagnostics of the iron content are important for real-time …
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— Rheological study and numerical analysis of high concentration iron ore slurry pipeline transportation ... The particle size distribution of iron ore concentrate is given in the Table 1 and the chemical and mineralogical analysis are given in the Table 2. ... Avi Levy, (2018) Flow characteristics of coarse particles in horizontal hydraulic ...
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— The influence of particle size, blend ratio and some selective bio-additives on the rheological behaviour of an Indian iron ore sample in a slurry concentration range of 60–75% by mass was evaluated. The rheological parameters were measured using a highprecision ThermoFisher Scientific HAAKETM RheoStressTM 1 Rheometer. The iron …
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