— 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 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 ...

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 …

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 …

 — 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 …

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

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 ...

The enhanced cohesive force among iron particles in the concentrated slurry increases the slurry's viscosity. At higher concentrations, the iron particles flocculateand settle, …

 — 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 …

 — 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 …

 — 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 …

 — 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 ...

 — 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 …

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.

 — 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.

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.

 — 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 ...

 — 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.

 — 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 …

 — 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 ...

 — 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 ...

 — 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. ...

 — Ore. Itabirite iron ore was collected as slurry from the feed to the plant desliming cyclone. This slurry was separated into a fine and coarse fraction in a laboratory-scale cyclone, as shown in Fig. 1 and Table 1. The mean particle size (d 50) for the feed, underflow and overflow was 71, 88 and 9 μm respectively. BET surface area analysis …

 — 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 ...

 — 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.

 — 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% …

 — 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 …

 — 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 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 ...