Paper: Effect of particle size, blend ratio and some selective …
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 …
Pipeline Slurry Transportation System: An Overview
— The slurry pipeline system as the means of transportation is reviewed showing the process of transportation starting from the beneficiation of ore at the mine …
Long-Distance Slurry Pipelines
— 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 …
Slurry pipeline friction losses for coarse and high density …
— 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 ...
Controlling the rheology of iron ore slurries and tailings with …
— 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.
Effect of particle size, blend ratio and some selective …
The instantaneous pH of iron ore slurry was found to be 7.33 at a slurry concentration of 70% by mass and pH stabilised after five hours of mixing and remained alkaline with a pH value of 7.44.
Controlling the rheology of iron ore slurries and tailings with …
— 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.
Advances in screening technology in the mining sector
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 ...
On-line measurement of particle size in mineral slurries
— 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.
Rheological study and numerical analysis of high …
— 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 …
An experimental study on the flocculating settling …
— 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 …
Hydraulic convey of iron ore slurry: Pipeline wear and ore …
— 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 …
A Brief Review of Micro-Particle Slurry Rheological Behavior …
— 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 …
Effect of particle size, blend ratio and some selective …
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
Hydraulic convey of iron ore slurry: Pipeline wear and ore …
— 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 …
Influence of particle shape on slurry wear of white iron
— 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 …
Modeling for slurry pipeline flow having coarse particles
— 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 ...
Testing and modelling of a coarse iron ore slurry for …
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.
Recent advances on stabilization and rheological behaviour of iron ore …
— 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 ...
Recent advances on stabilization and rheological behaviour of iron ore …
— 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 ...
Mineralogical characterization of the typical coarse iron ore …
— 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. ...
Rheological study and numerical analysis of high concentration iron ore
— 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 ...
Influence of Surfactant for Stabilization and Pipeline …
— 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 …
Testing and modelling of a coarse iron ore slurry for …
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 …
CFD Modeling of Commercial Slurry Flow Through …
— Gillis et al. proposed a two-layer model for the coarse particle slurry flow in a horizontal pipeline. In their model, they have predicted the head losses and pressure drop for coarse particle slurry. ... Experimental investigations of the effect of chemical additives on the rheological properties of highly concentrated iron ore slurries. KONA ...
Influence of Surfactant for Stabilization and Pipeline …
The enhanced cohesive force among iron particles in the concentrated slurry increases the slurry's viscosity. At higher concentrations, the iron particles flocculateand settle, …
Rheological Characteristics of Uni/Bi-Variant Particulate Iron Ore
— 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 ...
Testing and modelling of diverse iron ore slurries for pipeline
A 4-component model for settling slurry pipe flow has been previously described by Wilson et al (2006) and Sellgren et al (2014) to predict pipeline friction loss (hydraulic pressure …
Influence of Surfactant for Stabilization and Pipeline …
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.
The Composition and Performance of Iron Ore …
— 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 …
Online Fe grade monitoring of iron ore slurry by Morse …
— 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 …
Technological assessments on recent developments in fine and coarse
— 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 …