Pellets must withstand tumbling and falling during transport and mechanical loading inside the reactors due to the charge weight. In order to increase its mechanical strength, green pellets are thermally treated in the …
Pellet Plant produces Pellets using Iron ore and additives such as limestone, bentonite, coke, anthracite coal, quartzite which are passed through balling disc/drum and the green pellets so formed are passed through a furnace either ... Induration & Process gas handling Indurating machine, Process Fans, Induration hood & furnace, Grate machine ...
PLASMA HEATED FURNACE FOR IRON ORE PELLET INDURATION In the present pelletizing apparatus, the induration of iron ore concentrate pellets is achieved in a tunnel furnace heated by plasma torches, wherein the generation of C02 by the conventional iron ore pelletizing processes is reduced by using electricity powered plasma torches instead of burning natural gas, heavy …
pelletizing plants • Induration furnaces with pellet output capacities between 0.6 and 3.5 million t/a • Extremely small footprint and low space requirement • Highly efficient utilization of circular- …
pelletizing process and plant upgrades considering both, technology and long-term economic performance in our R&D centers. In order to optimize the entire process from run-of-mine ore through to fired pellets, our laboratories can carry out pellet tests in conjunction with comminution and beneficiation testing. 10
2. Introduction To Pelletisation Process Pellets are spherical balls formed by the agglomeration of natural or ground iron ore fines in the presence of moisture and binder These green balls of 5 – 20mm size are then dried, …
Induration Machine DESCRIPTION PARAMETERS Application Iron Ore Pellet Plant Material Iron Ore Pellet Production capacity 2.5~3.4 MPTA Effective area 388.5 square meters Total length 111 m Number of pallet car 172 pcs. Features and benefits : …
Pelletization of iron ore fines is an important step in an integrated steel plant. It essentially involves balling of fine powders on a rotating disk or drum to produce wet pellets and induration on a moving grate to produce fired pellets. The development of a user-friendly simulation tool, virtual indurator, for induration is presented here.
Induration process: the green pellets are hardened in a high temperature processing at controlled heating rates, and aiming to achieve the physical and metallurgical require- ments for handling...
GKC is composed of three processes (Fig. 1): (i) the Traveling Grate, which is responsible for the initial heating of green pellets; (ii) the Rotary Kiln, where pellet induration …
Outotec offers the industry's leading induration technology for iron ore pellet processing, which is based on over 60 years of experience and world-class R&D. This process produces …
A rigorous model for iron ore pellet induration in an industrial straight grate system operated in Tata Steel plant is developed with addressing several practical aspects. In order to validate this model, the industrial data are also generated using a …
Our iron ore pelletizing systems combine the best features of both technologies to provide the most modern plant and to produce pellets at the lowest cost and highest quality. Pellet plants sized from 1.2MTPA to 9MTPA; Engineering and …
Loss on ignition (LOI) in the mineral represents the chemically bonded water which can be removed at high temperatures only. High LOI in iron ore fines has an adverse affect during pellet induration process. High-LOI iron ore fines are required for detailed laboratory pelletization studies and are used in pellet making. The received iron ore is martite–goethitic and …
presence spanning across 36 countries. The CPT plant is located amidst mineral rich Barbil-Barajamada belt in the State of Odisha. The pelletizing plant´s active induration furnace area amounts to 191 m2. Primetals Technologies scope of supplies and services included the design of the induration furnace and the design of the preprocess
The induration process of oxidized pellet, containing the oxidation of magnetite phase (Fe3O4) and the sintering of oxidized magnetite phase (hematite–Fe2O3), is significant to obtain sufficient pellet strength. The current study focuses on the induration mechanisms of MgO flux pellet in terms of the oxidation process of Fe3O4 and densification process of the pellet. It …
Plant capacity available from 1.0 to 9.25 Mtpy in a single machine Market leader and capable of handling all types of iron ore Magnetite, hematite and weathered ores Outotec has installed 46 pellet plants around the World Ongoing development of the technology by Outotec continues with the most experienced pellet plant operators in the World
Outotec has optimized its existing induration technology offering and is launching its Compact-sized Pellet Plant. The plant design is based on a three-meter-wide indurating machine, building on the state-of-the-art design of Outotec's larger product range. The new compact plant offers the same high plant performance and premium ...
green pellets at elevated temperature using indura-tion furnace. Three types of conventional induration furnaces are used for the thermal hardening of the green pellets: vertical shaft furnace, grate-kiln furnace and moving straight-grate furnace. Cur-rently, AM/NS India operates total four straight-grate induration furnaces in two pellet plants
Figure 2 shows a flowchart of a typical pelletizing plant, highlighting the additive preparation, mixing and pelletizing feed preparation, the balling step, in this case using a disc pelletizer, and the induration step. Figure 2. Typical pellet plant using disc pelletizer as balling technology. Source: Elaborated by the authors from [9]
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Outotec 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. …
Global distribution of pellet plants under construction or planned (2012). ... protect the pallet cars from the high heat loads experienced during induration. The unfired green pellets are then ...
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 properties. It
These stages consist of (i) raw material preparation, (ii) formation of green balls or pellets, (iii) induration of the pellets, and (iv) cooling, storage and transport of pellets. Raw material preparation – During the process for pelletization iron ore concentrate from iron ore beneficiation plant is dried and heated to around 120 deg C. The ...
Straight grate furnaces are widely used for induration of hematite pellets where typically 1%–2% carbon is added to the green mix to help in generating heat by combustion. The quality of the pellets in such reactor varies from top to bottom of the bed as different layers of pellets are exposed to varying thermal and gaseous environments.
The design of the Compact-sized Pellet Plant is based on a 3 meters wide indurating machine, built on the state-of-the-art design of Outotec's larger product range. The ... Plot plan of Outotec's smallest size plant with an induration furnace of 189 m² reaction area: Standardized plant sizes: 189 m2 288 m2 315 m2 1.20 – 1.50 Mtpy
The straight-grate induration furnace is a non-catalytic packed bed reactor having cross current flow of gas-solid media. Different physio-chemical phenomenon occur during pellet bed traveling on the grate like drying and condensation of free surface moisture, combustion of carbon or coke particle, calcination of limestone, LOI or chemically combined water removal, …
Straight grate furnaces are widely used for induration of hematite pellets where typically 1%–2% carbon is added to the green mix to help in generating heat by combustion.
The iron ore induration or pelletizing process emits particulates, sulfur dioxides (SOx), nitrogen oxides (NOx) and other pollutants depending on trace elements in the orebody and fuel. Typical emission levels for these compounds during induration will be outlined, and corresponding options for pollution control equipment described. Recent pellet plant …
Fig. 1 depicts schematic of a typical straight-grate induration system. The grate bars fixed on a moving strand are first covered with a layer of burnt pellet, known as hearth-layer. The green pellets containing 7 to 9 wt.% free moisture and 10 to 14 mm in size are then fed onto this layer and travel together with the sub-layer through several thermal zones of the furnace.
The present research work deals with the effective utilization of hematite ore containing goethite, kaolinite and gibbsite loss-on-ignition (LOI) phases in pellet making without deteriorating product pellet properties by optimizing the induration cycle especially drying and preheating of pellets. Adequate drying and preheating of pellets before sintering is of prime …
Traveling grate pelletizing plant is an induration technology for iron ore pellet production for a wide range of plant capacities. NextGen Pelletizing This visionary concept considers all relevant factors for energy efficiency, plant production, and pellet quality to enable a holistic ...