OUTOTEC TRAVELING GRATE PELLETIZINGOutotec Traveling Grate Pelletizing is the industry's leading induration technology for iron ore pellet processing and is designed for a wide range of plant capacities up to 9.25 million t/a. Based on over 60 years' experience and world-class R&D, our process produces uniform pellets with excellent physical and metallurgical.coal fired straight grate iron ore induration,KOBELCO Pelletizing ProcessDec 29, 2010 . Grinding. Pre-wetting. Balling. Slurry. Iron ore. Line. Bentonite. Products. Induration. Air heater. Travelling grate. 1,100℃ 1,100℃. 570℃ 400℃. 400℃. 220℃. 280℃. 120℃. 1,300℃. Air. Kiln burner. Annular cooler. Rotary kiln. Electrostatic precipitator. Fig. 7 Typical flow of KOBELCO pelletizing plant.
V. Bobraj Jeyaharan - Metal BulletinDesign Criteria. Circular Grate technology is based on proven design of straight grate. ▫ Simple and robust design of equipment and gas flow. ▫ Circular design and small footprint of induration furnace with efficient and optimized equipment utilization. ▫ Location of Circular Pelletizing Plant not necessarily at mine site, but also.coal fired straight grate iron ore induration,Iron ore pelletizing - Iron ore fines are agglomerated into pellets and then indurated using a furnace to create iron ore pellets. These are . is the only supplier of both Straight Grate and Grate Kiln pellet plants . If the ore is a Hematite ore, coke or anthracite coal can be added to the mix to work as an internal fuel to help fire the pellets.John Frank
Iron ore pelletizing. Process flexibility. There are two main processes for producing iron ore pellets: The Grate-Kiln system and the straight grate system. . hardening each green ball into an indurated pellet product which is then suitable for feed in the steel making process. Green pellets. Fired pellets hearth layer. Grate bars.
It is well known that the grate-kiln method yields a superior and more consistent pellet quality compared with the straight-grate process. However, certain issues exist with the grate-kiln plant, which are discussed here, together with proposed practical solutions. Keywords grate-kiln, pelletizing, iron ore. * Division of Materials.
The process for pelletizing iron ore fines is an important operation unit for producing high quality of raw materials for the subsequent reduction processes such as blast furnace or direct reduction. . The induration process using traveling grate can be divided into 4 different stages: drying, heating, firing and cooling zones .
Sep 27, 2012 . Taconite is a hard, banded, low-grade ore, and is the predominant iron ore remaining in the. United States. Ninety-nine .. Straight grate, coke- and gas-fired, flux pellets. 3-03-023-88. AY. Grate/kiln .. induration, but heavy oil is used at a few plants, and coal and coke may also be used. In the vertical shaft.
The plant took iron ore concen- trate and produced . In a Grate-Kiln System, the traveling grate is used to dry and preheat the pellets. A refractory lined rotary kiln is used for induration. In a straight grate, the grate cars have to go through the drying . use liquid gas, or solid (coal or wood) fuels separately or in combination.
taconite induration. INTRODUCTION. Taconite is a very hard, relatively low grade ore that forms the basis of the iron industry in Minnesota today. In 2005, six taconite . process low-grade iron ore, at a time when Hg was not an issue. . grate in a straight-grate facility, however, a “hearth layer” consisting of pre-fired pellets.
Sep 2, 2013 . Hot Metal. HBI. DRI. Sinter. Pellets. Fine ore. Lump ore. Coal > Coke. Fine ore. Concentrate. Sinter Plant. Pellet Plant (CPT). Blast Furnace. Finex®. Corex® .. CPT vs Straight Grate. Comparison of Induration Furnace. Sept'13. Circular Pelletizing Technology. Page 10. 35 m. 26 m. Straight Grate: Side View.
Bulk granular products such as line, coal, fertilizer and iron ore degrade during their production . compares fines generation between pellets fired in Straight-Grate (Traveling Grate) and. Grate-Kiln furnaces. 2.2 Introduction. The mineral processing industry is trending towards the zero-waste approach, which includes.
Jul 15, 2015 . 5. 00/2014. Straight Grate (SG) and Grate Kiln (GK). The Straight Grate (SG) pelletizing process. The Grate Kiln (GK) pelletizing process . Essentially a SG induration furnace arranged in a circle to reduce the plant footprint. • Current plant sizes on offer -. 0.6 to 3.0 Mtpa. • First plant under construction in.
Dec 29, 2010 . Grinding. Pre-wetting. Balling. Slurry. Iron ore. Line. Bentonite. Products. Induration. Air heater. Travelling grate. 1,100℃ 1,100℃. 570℃ 400℃. 400℃. 220℃. 280℃. 120℃. 1,300℃. Air. Kiln burner. Annular cooler. Rotary kiln. Electrostatic precipitator. Fig. 7 Typical flow of KOBELCO pelletizing plant.
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The process of pelletization enables converting Iron Ore Fines into “Uniformed Sized Iron Ore Pellets” that can be charged into the blast furnaces or for Production of Direct Reduced Iron (DRI). Pellets are uniform size, with purity of 63%- 65% contributing to faster reduction and high metallization rates. Pellets with their high,.
operation directly[1-3]. Prior to use in BF operation, such huge fines and low-grade ores may be converted into pellets via pelletizing process (agglomeration technique). Iron ore concentrate pellets are usually hardened. (induration/firing) at high-temperature either in a horizontal traveling grate or in grate-kiln furnaces.
Iron ore fines. 1.25 MT. Coal. 40kg. Fuel Oil. 12 ltr. Bentonite. 0.4 to 1.0 kg. Lime stone power. 0.4 to 0.7 kg. III. PROCESS TECHNOLOGY. Pellets are normally .. 2 Travelling Grate. Fig. 3 Pellets after Screening to T.G. B. Firing. The strength of the pellet is developed initially at the shell and progresses towards the centre with.
production capacities and straight grate (SG) and grate kiln (GK) occupy the majority of the iron ore pellet production in the world. Pellet induration consists of three main steps;. 1) Drying of green pellets. 2) Firing of pellets at 1250-1300oC to sinter the iron oxide particles. 3) Cooling of hot pellets before discharging to the.
Jan 7, 2013 . A new generation of pellet plants featuring a circular induration furnace as its core element was developed by Siemens Metals Technologies. Referred to as Circular Pelletizing Technology (CPT), this iron ore agglomeration facility is characterized by its highly compact layout and light-weight construction.
After assessing the potential of pelletization of iron ore in India various companies are planning to set up pelletization plants in Odisha. This paper will give an insight in that direction. 1. Introduction. The objective of this paper is to study the techno economic parameters for setting up of iron ore pellet manufacturing plants in.
directly into a blast furnace or into a furnace used in the production of Direct Reduced Iron (DRI). The pellets are shown in Fig 1. Fig 1 Iron ore pellets ... Hot air from the cooler is used to support combustion in the kiln and is also recuperated to the traveling grate for drying and tempering preheat. coal or waste wood burner.
Mar 8, 2012 . within this sector. These are horizontal matters or specific activities that do not relate to one specific iron and steel activity. Chapters 3 to 8 provide the following information given below on particular iron and steel processes (sinter plants, pelletisation, coke ovens, blast furnaces, basic oxygen steelmaking.