Pelletization and sintering of New Zealand titanomagnetite …
Direct reduction (DR) of iron ore with hydrogen is a potential route for near-zero CO 2 steelmaking, but vertical shaft DR reactors require that iron ore fines must first be pelletized. This study reports an investigation of the pelletization and subsequent sintering behaviour of titanomagnetite (TTM) ironsand, which is the main iron ore feedstock for New Zealand's steel …
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Numerical study and orthogonal analysis of optimal performance
Conduct a reliability verification of the model. The vertical cooling process of sintered ore has not yet been widely applied in existing industrial practices. Therefore, the paper chose to compare the heat transfer calculation model's accuracy with experimental data of single-grade sintered ore from the study by Zhang 1. The operating ...
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SONGMAG Caustic Calcined Magensia Dead Burnt …
In China, Dead Burnt Magnesite (DBM) is burned in Annular Vertical Shaft Kiln, which are high temperature processing Units, where Magnesite Ore is sintered at a controlled temperature between 1700-1750 ℃. ... where Magnesite Ore is …
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ENERGY OPTIMISATION OF VERTICAL SHAFT KILN …
thermal energy to produce sintered dolomite (CaO, MgO), generating a large flow of hot gases at the furnace outlet. The objective of this work was to assess the possibilities of utilization of …
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US3980466A
In a method of operating a shaft furnace for the production of sintered iron ore pellets, in which the pellets are fired by introducing hot gas at the level of the furnace adjacent the opening for introducing the pellets to be fired and located at the top of the furnace and cooling air for cooling the pellets after having been heated by the hot gas is introduced into the shaft at the bottom ...
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Numerical investigation of gas-solid heat transfer process and
At present, the main production equipment for sintered magnesia is the shaft kiln, which consumes significant amounts of heavy oil or natural gas and electricity in the production process, resulting in a lot of air pollutants and energy consumption (An and Xue, 2017).At present, shaft kilns have been extensively built in Liaoning, China.
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CN101265517A
The invention belongs to a chromium residues integrated treatment and utilization technique, comprising mixing chromium residues and various powdered iron-containing raw materials such as iron ore concentrate powder, iron-enriched ore powder, converter dust, steel rolling iron scale or pyretic residue and iron dust at a proper proportion, adding proper amount of basic solvent, …
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Experimental Study of the Crushing Characteristics of Single …
The crushing process of material particles in a vertical shaft impact (VSI) crusher is highly complex. It is hard to quantify and characterize the crushing behavior of particles. In this work, an experimental setup for active impact crushing is designed and constructed to investigate the crushing behavior of particles in a VSI crusher. Impact crushing experiments are carried …
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Experimental study of different feed patterns on the particle and …
A set of cold experimental platform for the vertical cooling process of sinter ore (shown in Fig. 1a) was set up using the cooling shaft kiln in operation as a prototype. The …
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The Crushing Distribution Morphology of a Single Particle …
In a vertical shaft impact crusher, the particle crushing process is extraordinarily complex, and the particle shape significantly influences the size distribution of the crushed product. To quantify the crushing behavior of particles more accurately and thus reveal the crushing mechanism of the crusher, an analytical approach is suggested for characterizing the …
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Iron ore sintering
Ore particles of −2.8 + 2.0 mm are loaded in a Ni crucible of 20 mm in diameter and 15 mm in height and subsequently heated in air in a vertical electric furnace. The sample is heated up to 1200°C in 4 min.
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Thermal analysis of sinter vertical cooler based on
The heat transfer and pressure drop in the vertical cooler are analyzed under various parameters. ... 15% in the whole steel production. At present, the residual heat generated by Chinese steel enterprises for each ton of sintered ore is 1.44 GJ. The existence of waste heat is mainly divided into sensible heat of sintering flue gas and sinter ...
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An Inspection and Surveying System For Vertical Shafts
The inspection of vertical shafts has posed difficulties for mining companies for a number of years. Ore passes are a particular concern, since the passage of rock through such shafts, and the impact of the surrounding stress-strain field result in the rapid erosion of shaft walls.
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Basics of Iron Ore Sintering
In case of chromite, the temperature required for sintering is about 200 0 C more than that required for iron ore sintering. The process conditions for manganese ore sintering are almost similar to that for iron ore. The author has actively contributed to projects for setting up of batch type (capacity 15000 tpa) sinter plants at industry site.
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Iron Ore Sinter
Automated optical image analysis of natural and sintered iron ore. E. Donskoi, ... J.R. Manuel, in Iron Ore, 2015 4.2.2 Sinter. Low-temperature (< 1300 °C) iron ore sinter is an agglomerate of unmelted and partially melted nuclei particles (+ 1 mm) and a matrix bonding phase produced from the melting of fine ore (− 1 mm) and flux particles, with the majority of melt formation …
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Iron Ore Pelletizing Process: An Overview
vertical-shaft-kilns for firing the pellets. Plant capacities were between 10,000 and 60,000 tons/ year [1]. ... Ore characteristics also influence on the required amount of binder to produce ...
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vertical shaft for sintered ore
vertical shaft for sintered ore. vertical shaft for sintered ore. Blast furnace, a vertical shaft furnace that produces liquid metals by the reaction of a flow of air introduced under pressure into the bottom of the furnace with a mixture of metallic ore, coke, and flux fed into the top.
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Experimental study on the permeability and resistance …
Resistance characteristics and particle movement behavior of a petroleum coke particle packed bed in a vertical shaft calciner under different burden distribution methods. Jindi Huang Hui Lu ... The pressure drop over a packed bed with sintered ore particles was studied experimentally. The sintered ore particles were characterized to determine ...
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Theory and Practice of Sintering of Iron ore – IspatGuru
Based on further studies as well as initial studies, the equation which has been proposed for calculating the optimum moisture (W) as a function of the nature, composition and granulometry of the iron ore is W = 2.28 + 0.427 L + 0.810 A – 0.339S + 0.104D + 0.036 E where L is the ore weight loss during heating in grams, A is % Al2O3 in ore, S ...
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Vertical Shaft Impactor
Vertical Shaft Impactor Application: The VSI is typically used after a primary or secondary crusher. This makes a VSI ideal for making sand and for making coarse and medium aggregates for …
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USE OF SINTERED PELLETS IN PRODUCTION OF HIGH …
FACOR had decided to try on their own pelletilisation studies on high grade Indian ores. They could locate a small scale cement plant where the vertical shaft kiln is being used for clinker …
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ENERGY OPTIMISATION OF VERTICAL SHAFT KILN …
Energy Optimisation of Vertical Shaft Kiln Operation in … THERMAL SCIENCE: Year 2018, Vol. 22, No. 5, pp. 2123-2135 2125 standing and optimization of the thermo-chemical processes inside lime shaft kilns, including parallel flow regenerative kilns. For the sintered dolomite production, the primary target of optimisation is to de-
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Pin drier of ring cooler for cooling sintered ore
The utility model relates to a pin driver of ring cooler for cooling sintered ore, which comprises a ring cooler rotary frame, a pin chain, a pin wheel, an upright axis, a superior supporting holder, an inferior supporting holder, an upright coupling, an upright decelerator, a torque-fixed coupling and an electric motor; wherein, the pin chain is positioned on the outside of the ring cooler ...
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CN112097509A
The invention relates to a device for improving the heat exchange efficiency of a vertical cooling furnace for sintered ores, which comprises a vertical cooling furnace body, a furnace top feeding system, a furnace inside and furnace bottom partition plate system, a middle air distribution system, a furnace bottom discharging system, a furnace bottom air distribution system, a …
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Vertical Shaft Development
Vertical shaft development is a method of development that uses a shaft as the main access for hoisting ore, personnel, materials, and equipment. Vertical shaft development (Fig. 1 ) is the most widely used development method in underground mines and is suitable for the development of steeply inclined and deeply buried horizontal and gently ...
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Akobo Minerals reports on gold production and new vertical mine shaft
Akobo Minerals AB provides an operational update for January 2025 and details on the new vertical mine shaft ... Increased production ahead: Stoping (mining the ore body) has commenced from the Western Winze, while the Eastern Winze is nearing completion for its prospect drive to start at the new 575 level. Going forward, mainly ore will be ...
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Experimental study of different feed patterns on the particle and …
The high-temperature sintered ore from sintering machine enters the cooling shaft kiln from top, where it is cooled by strong heat exchange with the upward cooling air, and …
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Akobo Minerals reports on gold production and new vertical mine …
Additionally, the vertical shaft will enable activation of the Carbon-in-Leach (CIL) circuit, increasing gold recovery rates from approximately 60% to 93%. Key features of the …
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Numerical study and orthogonal analysis of optimal …
parameters for vertical cooling of sintered ore Weishu Wang1, Shuailong Li1, Juan Zhen2, Jiawei Guo1 & Weihui Xu1*
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Vertical Shaft Impactor (VSI) – OreTech Engineering Service
Oretech Vertical Shaft Impactor (VSI Crusher) Introducing the Oretech Vertical Shaft Impactor – a revolutionary solution for efficient and precise crushing of a wide range of materials. Designed to deliver superior performance and exceptional product shape, our VSI Crusher sets new standards for versatility, productivity, and profitability in ...
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