— Desale et al. [6] also used the CF to characterise 3 different particle types for wear testing. Quartz sand, alumina and silicon carbide with CF of 0.70, 0.34 and 0.44 (respectively) were used in a slurry pot tester at 3 m/s against mild steel and stainless steel specimens.(Note – because of the spread in measured CF the average results were …
The enhanced cohesive force among iron particles in the concentrated slurry increases the slurry's viscosity. At higher concentrations, the iron particles flocculateand settle, …
— 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 …
ABSTRACT. A 4-component model for settling slurry pipe flow has been previously described by Wilson and Sellgren to predict pipeline friction loss over a range of slurry …
a higher solids specific gravity, as may often be seen in the mineral processing of iron ore deposits. To that end, a test program was carried out in a 103 mm (4 inch) pipe loop using a coarse iron ore product having a solids specific gravity of 4.78. This ore product is designed for ballasting applications and has a top size of 8 mm.
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 ...
— 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 …
— 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.
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.
— A rigorous literature review has been carried out on rheological behavior of hard and soft particle slurries. The rheological characteristics of unimodal and bimodal suspension are presented. From experimentation, it was observed that mineral viscosity increases with solid concentration, while decreases with temperature. Addition of 30% …
— 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 …
— Iron ore slurry. The iron and steel industries have grown dramatically during couple of decades. To meet the future demand, the effect of bio-additives on rheological behaviour of the Indian iron ore slurry was evaluated by Senapati et al. 2018 [14]. The studied slurry displayed non-Newtonian flow behaviour and fitted well with the Bingham ...
— The apparent viscosity of the coal water slurry was investigated as a function of coal particle size variation, different coarse to fine ratio of coal particle, concentration of coal in the range (60–67.2%), A. auriculiformis concentration in the range (0.01–0.021 g/cm 3) and stabilizer concentration (0.001–0.01 g/cm 3). The addition of ...
— To solve the high slurry pressure and severe wear at some sections in backfilling pipelines, this study investigates the solution of using an auxiliary pipe to …
— 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 ...
— 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 ...
— Iron ore, coal, phosphate ore, clay and limestone are being transported inform of slurry through pipeline. In any mineral processing industries, slurry is the integral part …
Examples are provided from applications in the processing of metal ores, iron ore and coal. ... Outsize on the coarse particle side is called undersize, while that on the fine particle side is called oversize. ... An interesting alternative for the raw coal application in CHPP plants upstream of the slurry screens are the roller screen ...
— 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 …
— The iron ore mineral slurry was sourced from a mine in Pilbara region of Western Australia. The particle size distribution of this slurry measured by a Mastersizer Microplus is as follow: D 10 = 0.28 μm, D 50 = 4.01 μm, D 90 = 76.39 μm, volume means size D[4,3] = 23.82 μm and surface area mean size D[3,2] = 0.82 μm.
— 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. ...
— 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 …
— 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 …
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 …
— The partially-stratified friction loss model proposed by K.C. Wilson, G.R. Addie and R. Clift, Slurry Transport Using Centrifugal Pumps, Elsevier, Oxford 1992 predicted well the observed losses of an iron ore (relative solids density 4.1, mass median particle size 0.42 mm) at a concentration of 23% (D = 0.1 m). With a slightly heavier and ...
— 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 …
— "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.
— 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.
— Considering a large number of higher solids concentration iron ore slurry pipelines operating across the world and their associated problems, the present study aims to generate an extensive ...
— 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 …
— 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 …
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
— 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 ...
DOI: 10.1615/MULTSCIENTECHN.2016016085 Corpus ID: 125430283; MODELING FOR SLURRY PIPELINE FLOW HAVING COARSE PARTICLES @article{Kumar2016MODELINGFS, title={MODELING FOR SLURRY PIPELINE FLOW HAVING COARSE PARTICLES}, author={Navneet Kumar and Manoj Kumar Gopaliya …
