Ceramic filtration is used for the final dewatering stage of the concentrate product at a Brazilian iron ore operation.
Product thickening is therefore required ahead of the final dewatering stage. Rodrigues et al. (2021) ... In order to investigate new synergy between the two physical separations, itabirite iron ore concentrate produced from the VPHGMS magnetic separator was also re-processed using the Reflux Classifier to achieve an even higher grade.
This paper is concerned with studying the dewatering behavior of three samples of iron ore products. The. objective is to improve the industrial filtration performance by taking into account the ...
Water plays a crucial role in mineral beneficiation, and thus dewatering the tailings from mineral processing plants has great importance.This paper discusses the influence of chemical conditions (pH, flocculants, surfactants, and coagulants) on the filtration performance of iron ore tailings. The results indicated that Ca 2+ and Na + ions …
The benefits of using a thickener and filter press combination can include better water recovery, the removal of permitting issues, lower operating costs since a tailings pond may not be needed, and better compliance …
DOI: 10.25018/0236-1493--195-200 Corpus ID: 139165308; APPLICATION OF NEURAL NETWORK TECHNOLOGIES TO INDIRECT MEASUREMENTS IN THE IRON ORE CONCENTRATE DEWATERING CONTROL @inproceedings{Khalapyan2017APPLICATIONON, title={APPLICATION OF NEURAL …
Cost efficient mine pump. The GEHO-APEXS mine dewatering pump is a positive displacement hose diaphragm unit designed for moving fluids at high pressures and in large volumes. Due to its design, the pump runs at 3 to 5 strokes per minute, resulting in significantly less check valve cycles, less impact on valve closure and a slower speed of ...
choice for high-capacity concentrate dewatering with the lowest operating costs. In one case, this meant increasing throughput to more than 500 t/h per machine, with half the total footprint of traditional solutions. In a different brownfield project, the result was the world's largest hyperbaric disc filter in iron ore production, with a
The separation or concentration process produce two streams of slurry: one is the slurry of the copper concentrate, zinc concentrate, iron ore concentrate, lead concentrate, fine coal or gold etc. The slurry of …
In this plant 700 t/h ore (containing 51% iron) is treated to produce 350–400 t/h concentrate with iron contents of 63%. The tailing of the iron ore beneficiation plant (containing 17% iron) at a mass flow rate of 300–350 t/h in slurry form with 5–8% w/v solids% is usually dewatered in two parallel thickeners (D = 55 m, H = 6.6 m).
This necessitates optimization of dewatering systems particularly in arid and semi-arid mining regions. In this paper the bench and full-scale flocculation behavior of iron ore tailings is ...
Two types of media blockages were found to play an important role in an acidic iron ore dewatering process: fouling by slurry particles and by in-situ crystallisation of calcium oxalate, of which the latter originated from the combination of process water and process chemistry. ... Iron ore concentrate mainly includes magnetite concentrate and ...
Experiments have shown that it is possible to obtain a concentrate containing 65% iron, 1.8% alumina and 1.4% silica with an iron recovery of 80% from the tailings of Barsuan iron ore plant ...
An improved process for filter dewatering of an iron ore concentrate slurry produced from iron ore by selective flocculation followed by flotation wherein acid and then a surface tension reducing agent of the sulfosuccinate class is added to the concentrate slurry before the slurry is filtered.
As one of the world's largest producers of iron ore, our operations in the Pilbara ship more than 190 million tonnes of iron ore annually. ... Further to the successful production of wet concentrate at the Iron Bridge site, it has now been transported through the 135 kilometre specialist slurry pipeline where dewatering and materials handling ...
The washing of the iron ore fines results in a moisture of about 11–14% in the fines and about 4% in the sized ore. The moisture content goes up to 16–18% in the fines during the monsoon season. Indian iron ore contains hematite and goethite as the major iron bearing minerals. Alumino-silicates are the gangue minerals [10], [11], [14], [15 ...
In this paper, a control strategy for an iron ore concentrate dewatering process was developed and evaluated by employing a dynamic model. The proposed …
This work studies the mechanism and optimization methods of the filter press dehydration process to better improve the efficiency of the concentrate filter press dehydration operation. Machine ...
The dewatering of iron ore is a high tonnage application in general requiring high energy input. Choosing a ceramic capillary action disc filter can offer decreased specific energy consumption in ...
Patra et al. (2016) have studied and improved dewatering of iron ore fines by the usage of surfactants. In their primary studies, they found that the main problem with the dewatering process was adherence of the ultra-fine particles to the iron particles. Surfactants improved dewatering by increasing the hydrophobicity.
The fourth stage is dewatering, and refined iron ore contains water in quantities that need to be dewatered and dried, and its moisture reaches 9-10%. For this purpose, filters are used to separate the resulting …
Our FLOTIGAM™ collectors are able to produce iron ore concentrate with low silica content by froth flotation, resulting in high purity concentrate, which is needed for steel production. ... Clariant's dewatering and filtering agents can deliver optimal moisture content without adding complexity to the process. Our FLOTICOR™ range consists ...
In this paper, a control strategy for an iron ore concentrate dewatering process was developed and evaluated by employing a dynamic model. The proposed strategy, based on ARC, could extend the …
Iron ore concentrate was irradiated varying the microwave exposure time and grinding efficiency was evaluated. The moisture influence in the HPGR efficiency was also assessed. ... However, the moisture control at the dewatering process is greatly influenced by the ultra-fine particle fraction (% < 325#) in pellet feed and generated …
Among them, iron ore concentrate dehydration is concentrating the separated iron ore concentrate in a concentrator, reaching a certain dehydration rate, and entering the filter to continue dehydration. Grind the obtained filter cake into iron ore concentrate. The method for dewatering iron ore tailings is a tailings dry drainage …
ABSTRACT The dewatering of iron ore is a high tonnage application in general requiring high energy input. Choosing a ceramic capillary action disc filter can offer decreased specific energy consumption in addition to a fully regenerable filter ... flow conditions and composition of the feed are significantly different when performing dead-end ...
International technology group, Andritz, has started using its newly-developed mining filter press for the iron ore industry at Jagannath Steel in India. The new mining filter press meets the specific challenges related to dewatering iron ore, with improvements made in order to ensure reliable operation and high level performance. After the ...
In an iron ore concentrate dewatering plant of VALE S.A in Serra Norte, Carajás-Brazil, many tons of concentrate are lost every year due to vacuum disk-filters fails. This paper presents the ...
Therefore, dewatering after 1250 kPa filtration has no further adhesion-increasing effect. For the iron ore tailings, 5 kN·m −2 corresponds approximately to 25 cm cake thickness by assuming a residual moisture of 20 w-%, ρ Solid of 3050 kg·m −3, ρ Fluid of 1000 kg·m −3, a full saturated cake (S = 1) and no sealing edge.
The iron ore tailings to be used in the electro-osmosis experiments were obtained from an ore processing waste dam near Sivas province. The iron ore with an average of 56% Fe grade brought from the mine is ground under 2 mm in rod mills and hydrated to 65% Fe concentrate grade and fed to magnetic separators.