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Outotec is the original technology supplier for Grate-Kiln systems having acquired the technology from Allis-Chalmers. These plants typically produce pellets of a more consistent quality at a lower cost than other types of pelletizing systems. Outotec has designed and supplied the most modern and largest grate-kiln systems in the world.
Iron-making blast furnace requires high air permeability during operating so the iron ore fines should be processed into iron ore pellets in the iron ore pelletizing plant in advance. During the processing of high-grade iron ores which don't need beneficiation, many ore fines are generated which are usually regarded as waste.
Oct 26, 2020· Production of iron oxide pellets from iron ore fines involves several steps from drying to induration . The schematic diagram of the straight grate induration process is shown in Fig. 1. The corresponding operating parameters of the induration machine and pellet properties are shown in Table 1.
Jun 01, 1979· International Journal of Mineral Processing, 6 (1979) 43--64 43 Elsevier Scientific Publishing Company, Amsterdam -- Printed in The Netherlands DEVELOPMENT AND VALIDATION OF A MATHEMATICAL MODEL FOR THE MOVING GRATE INDURATION OF IRON ORE PELLETS J.A. THURLBYl, R.J. BATTERHAM1 and R.E. TURNER2 x Commonwealth Scientific and Industrial …
superior iron ore pellets at lower costs. This is achieved partly by regulating oxygen concentration in the process gas and the time available before the peak induration temperature is reached. In the pelletizing process, different types of iron ore concentrates such as hematite, hematite-magnetite and magnetite iron ores are used.
Jun 08, 2019· high-LOI iron ore in the blend with current operating parameters as per pellet plantPelletization studies has been carried out on high-LOI iron ore as per present pellet plant induration machine parameters (Table 3) to know the possibility of usage of iron ore in the present induration furnace conditions.
designed induration furnace greatly reduces the footprint size of the pelletizing plant. The overall space requirement for a CPT plant is approximately one half of that needed for a conventional pellet plant. Capital expenditures for civil works, equipment and steel structure are reduced accordingly and plant …
In an integrated steel plant, the task of providing high grade pellets resides with the pellet plant wherein finely ground iron ore concentrates are converted into small pellets, called as green balls, having diameter of 10-20mm. The pelletizing process is currently the most widely used method for producing suitable raw materials
Induration Machine DESCRIPTION PARAMETERS Application Iron Ore Pellet Plant Material Iron Ore Pellet Production capacity 2.5~3.4 MPTA Effective area 388.5 …
The rotary drum mixer is the main equipment in iron ore pelletizing plants, which is set between the batching equipment and the pelletizing disc.It provides well-mixed raw materials suitable for induration. Rotary drum mixers can be divided into gear driving drum mixers and rubber tire driving drum mixers.
Plant overview Grate-KilnTM iron ore pelletizing system The first Grate-KilnTM system pellet plant was installed in 1960. The plant took iron ore concentrate and produced superior iron ore pellets (which are spheres of high iron content and uniform quality) for blast furnace and direct reduced iron feed. Since then, Grate-Kiln systems have been used for over 50 plants, on both magnetite and ...
Sep 01, 2015· The iron ore pelletizing process is comprised of three main stages: (1) raw material preparation, (2) green pellets production and (3) thermal treatment of green pellets. Pelletizing plants usually receive concentrated ore sludge from the mining site. This sludge contains about 70%-w of solids, and once it arrives at the plant it is further ...
The study was carried out in a 4-m tonne iron ore pelletizing industry located in Odisha, India from March to December 2015. The pellet plant used travelling grate technology to convert low grade fines into value-added pellets. The slurry was received at the pellet plant from the beneficiation plant through a 220-km pipe line.
Pellet Plant: 2*30 sq.m with production capacity of 0.3 MTPA. Pellet-plant. Pellet-plant1. Iron ore can be upgraded to a higher iron ore content through beneficiation. This process generates iron ore filter cake which needs to be pelletized to be used in the steel making process. Also during the processing of high grade iron ores which don't ...
The heat hardening by oxidation is a process commonly used in iron ore pelletization process. The green pellets are fired in induration machine using Corex gas at JSW Steel Limited Pellet Plant. The firing temperature of induration machine strongly influences the physical and metallurgical properties of the pel-let.
High grade iron ore less than 10% of the total reserves. ROM iron ore with Fe less than 58 – 60% discarded as waste. After beneficiation iron ore availability can improve by about 50%. Steel community and the country demand technological solutions for utilising low grade ores. The technology task that would be imperative: 1.
machine sintering and pelletizing iron ore . machine sintering and pelletizing iron ore. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals.
Iron Ore Pellets Induration Solutions. Iron ore green balls are soft and easy to break. So after the pelletizing and screening operations, iron ore pellets have to be hardened in a furnace through a firing process. Once fired, they can be handled, loaded in ships or trains and delivered to the end users. ... plant operation and maintenance ...
The location of a pelletizing plant affects the method of receiving raw materials such as iron ore, additives and binders. 2.2.1 Pre-treatment process of Iron Ore Fines In the pre-treatment process, iron ore fines are ground into finer size, suitable for green ball formation. Dry or wet grinding process is adopted for grinding the iron ore fines.
Straight grate induration machine for hematite. Working area – 189 m Construction of pelletizing plant no.3 with straight grate induration machine "МОК-592М". Working area – 592 m Pallets 4.0х1.5 Reconstruction of straight grate induration machine Lurgi-278 …
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 oil or …
Dec 01, 2008· A mathematical model is developed for induration of the iron-ore pellets in an industrial-scale plant based on the laws of mass, heat and momentum transfer. Physicochemical processes occurring during the induration of pellets such as drying of moisture, calcination of limestone and coke-magnetite reaction are considered to evaluate the gradient ...
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 : …
Pelletizing Plants Iron ore Pelletizing: Fuel oil filtration Pelletizing is the process through which iron ore fines are transformed into an agglomerated form called "iron ore pellets" suitable for use in an iron-making furnace at a steel mill, such as a blast furnace or electric arc furnace.
Outotec's traveling grate pelletizing plant is the industry's leading induration technology for iron ore pellet production for a wide range of plant capacities. Based on over 60 years' experience and world-class R&D, our process produces uniform pellets and ensures high performance and quality, with low investment and operating costs, as well ...
travelling grate iron ore travelling grate pelletizing for iron ore OUTOTEC TRAVELING GRATE PELLETIZING. 201755 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 …
Evolution of binders for iron ore pelletizing Induration technologies Challenges and innovations in iron ore pelletizing 2. Pelletizing process and raw materials The iron ore is mined mostly from open pit deposits through mining operations and the raw product, run of mine, is subjected to mineral processing.
Iron ore pellets are a preferred feedstock for ironmaking. One method used for pelletizing is the grate-kiln process, first established in 1960. During the past decade, the establishment of new gra ...