Iron Ore Paste Thickeners

The paste thickeners recover at least 75 – 80 percent of the water by volume from the primary thickeners, increasing total water reclamation in excess of 95 percent. These rates ensure adequate capacity in the thickeners …

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Paste disposal system – iron ore tailings; Lead/zinc/graphite concentrate dewatering; Thickeners for coal, iron ore, chrome ore, and others; Processing cellulosic raw material for ethanol production; Fill Out the Form To Request a Quote. Contact. Homepage. Renewing Water, Helping Communities Thrive.

Paste thickeners Outotec Paste Thickeners provide unmatched performance in high density separation. Achieving a solids density is one thing - doing it in a managed way is another. Outotec 2nd Generation Paste Thickener provides ease of operation and reliability even in the most challenging applications.

The company produces about four million tons a year of iron ore at present, of which half is consumed by the steel-making industry, and half exported to China. ... paste thickeners, and ultra-high rate thickeners. Units are available in diameters from 1 m to 90 m. 'Off-the-shelf' designs are available, while thickener tanks, rakes, and ...

Paste thickeners thicken tailings to higher underflow solids concentrations than conventional and high-rate thickeners. For example, a tailings stream in an iron ore application could be thickened to 45-50 percent solids Newtonian slurry in conventional or high-rate thickeners.

In this case the pattern would be a deep cone thickener equal to the existing paste thickeners, having dimensions of 10 meters in diameter and 14 meters high in the shell side, which had a scraper mechanism, and which was obtaining a solids content of 30 to 21 underflow in wt% compared to 15-17% obtained in conventional thickeners.

Combined use of primary and secondary thickeners in iron ore mining has rarely been implemented. A large 295-foot diameter primary thickener is integrated with a secondary paste …

Description. The High-Rate thickeners became popular in the mid 1980's and are relatively newcomers to the sedimentation line of equipment. As already discussed previously Thickeners are a major component in a plant layout and occupy large spaces which may be saved by introducing high-rate machines. Furthermore, they are normally positioned far away from the …

Chapter 3: iron ore beneficiation', Iron & Steel -Vision 2020 Jan 2020 Indian Bureau of Mines 2020a, 'Chapter 1: executive summary', Iron & Steel -Vision 2020, Indian Bureau of Mines, Nagpur.

They feature a deeper tank with a steeper floor slope, allowing for faster settling of solids. High-rate thickeners employ a feed well and a unique feed dilution system, which improves the efficiency of solids settling. These thickeners are ideal for applications where a high underflow density is desired or where space is limited. 3. Paste ...

The fine particle of processing of slimy tails of iron ore wash plant tails have been addressed either by flotation or wet high intensity high gradient separation.

In iron ore processing, the choice of thickeners depends on various factors tailored to specific operational needs. High-rate thickeners are commonly favored for their ability to handle large throughput volumes efficiently. ... The mining sector is embracing advanced thickener technologies like high-rate and paste thickeners to optimize solid ...

Keywords: paste thickeners, surface stack, Iron slimes 1 Introduction India has a robust iron and steel industry, with growth reported by the India Bureau of Mines (2020a, b) as ... beneficiation steps will vary from site to site based on ore character and target products. Characteristically,

Paste vs. Conventional. Paste thickeners thicken tailings to higher underflow solids concentrations than conventional and high-rate thickeners. For example, a tailings stream in an iron ore application could be thickened to 45-50 percent solids Newtonian slurry in conventional or high-rate thickeners. Conversely, the same tailings stream could ...

Keywords: paste thickeners, surface stack, Iron slimes References: Indian Bureau of Mines 2020a, 'Chapter 1: executive summary', Iron & Steel – Vision 2020, Indian Bureau of Mines, Nagpur. ... A 2020, 'A case study on sustainable iron ore management using paste technology', Transactions of the Indian Academy of Engineering, vol. 5, pp ...

Paste is a homogeneous mixture of solid and bearing fluid, in our case iron slimes and water. The distinct properties are higher yield stress and solid percentage. This means better storage and ...

Paste thickeners thicken tailings to higher underflow solids concentrations than conventional and high-rate thickeners. For example, a tailings stream in an iron ore application could be thickened to 45-50% solids in conventional or high-rate thickeners. Conversely, the same tailings stream could be thickened to 65-70% solids using a paste ...

According to Steve Myers, Andritz Separation's manager for mining and minerals for North America, recent supply contracts won by the company have included six hyperbaric disc filters for iron-ore concentrate in the U.S. and India, 14 thickeners for a major potash plant in Russia and 10 filter presses for a large cement producer in Germany, as ...

"The paste thickeners recover at least 75 – 80 per cent of the water by volume from the primary thickeners, increasing total water ... Yet today, less than 1 per cent of iron ore mines employ systems for paste thickening, despite the benefits it can …

Iron ore tailings are currently disposed underwater in tailings dams as slurries containing from 30% to 50% of solids by weight. Conventional or high capacity thickeners are used to recycle most ...

Paste thickeners are uniquely different than conventional and high-rate thickeners. High-rate thickeners, that produce a settling slurry underflow, have been in use for decades. Thickener selection is based on feed characteristics …

PASTE THICKENING IRON ORE TAILINGS UPDATE1 Steve Slottee2 Jerold Johnson3 Mark Crozier4 Abstract Paste thickening technology is rapidly emerging as an effective method for handling tailings for water recovery and as an alternative to conventional dams and ponds. This paper describes an example of the use of this technology on iron ore tailings.

The more obvious difference is in the front part, that is, the high-concentration underflow via thickeners. In other word, it clearly by Fig. 1 a that the tailing slurry preparation particularly critical to paste backfilling quality and the thickeners plays a pivotal role. The main reason is that during the preparation of tailings slurry, it is ...

Slotte S., Johnson J. and Crozier, M. (2005) Paste thickening for iron ore tailings XXXV Ironmaking and Raw Materials Seminar, VI Brazilian Symposium on Iron Ore. Show more Recommended publications

Paste Thickeners Farhad Moosakazemi, Mohammad Hayati, Mohammad Reza Tavakoli Mohammadi, Elmira Tajvidi Asr & Seyed Mohammad Javad Koleini ... Mineral processing Selection of mineral processing plant location at the Sangan iron ore mine (phase 1) based on distance from the mine, access to heavy machinery transport, the amount of excavation ...

PDF | On Oct 18, 2016, Saeed Naraghi and others published Deployment of applicable technologies to recycle water from thickeners and tailings dams in Sangan Iron Ore Mines for a sustainable water ...

Outotec has a long history of developing paste thickeners, as well as the design and delivery of large-scale paste thickening projects. This has given us a deep understanding of the key aspects of high-density thickeners, including effective flocculation, dewatering, raking, prevention of rotating mud beds, process control, and the discharge of thickened solids.

In high compression (HCT) and paste (PT) applications the bed depth or the mass of solids in the thickener must also be selected to ensure the desired underflow density from the thickener is achieved. By adding …

Abstract: Traditional iron ore beneficiation plants using washing screening and jigging processes require large volumes of process water. Therefore, when a suitable large iron ore deposit is found in a location where rainfall is erratic and raw water sources are limited, innovative process designs are required to minimise water losses, maximise reuse of process water and minimise raw …