Apr 04, 2013· Mathematical model for a straight grate iron ore pellet induration …. This article focuses on the straight grate type of the pellet indu- ration process. In industrial plants, the moving grate is divided into several zones such as those … tion by the induration machine is, thus, related to the performance of the cooling … »More detailed
straight grate iron ore pelletizing technology. THE CIRCLE OF FLEXIBILITY CIRCULAR PELLETIZING TECHNOLOGY. ADVANTAGES OF CIRCULAR PELLETIZING TECHNOLOGY • Proven process technology as utilized in straight-grate pelletizing plants • Induration furnaces with pellet output capacities between 0.6 and 3.5 million t/a. Get Price
• well-proven travelling grate process • robust mechanical design from the circular dip rail cooler The result is the revolutionary: • Circular Pelletizing Technology Circular Pelletizing Technology A SMART combination Straight grate induration process Mechanical system of SVAI circular dip rail cooler Circular Pelletizing Technology + =
Request PDF on ResearchGate | Mathematical model for a straight grate iron ore pellet induration process of industrial scale | a b s t r a c t A mathematical model is developed for induration of ...
A mathematical model of drying and preheating processes in a traveling grate was presented based on the laws of mass, momentum, heat transfer, and drying semiempirical relations. ... Optimizing the operation of straight-grate iron-ore pellet induration systems using process models, Metall. Mater. Trans. ... Mathematical model for a straight ...
condition & minimizing project cost. It is expected that MECON's state of art "All Indian Pellet plant" based on Travelling grate (TG) process will meet the above demand. Two major process routes i.e. Travelling Grate (TG) & Grate Kiln (GK) process are adopted worldwide for pellet production where in, TG process has some edge over GK process
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 "B" Working area – …
Straight Grate iron ore pelletizing system 29 Map Locatio n Plant Name Location Owner Rated Tonnage (10 6 TPY) Start -up Ore Type No. Units 22 JSW I Toranagallu Karnataka, India Jindal South West Ltd. 3.0 1999 Hematite 1 23 JSPL Barbil, Orissa, India Jindal Steel and Power Ltd. 4.0 2009 Hematite 1 24 Essar I Paradeep, India Essar Steel Ltd. 6.0 ...
Iron ore pelletization is a two step process consisting of pellet production in balling circuits and pellet induration in straight-grate or grate-kiln systems. Extensive applied research and plant scale testing have been directed to understanding and improving the induration process and pellet quality.
A Dynamic Mathematical Model of the Complete Grate/Kiln Iron-Ore Pellet Induration Process J.A. THURLBY Induration (drying and hardening) of iron ore pellets is an energy-intensive feed preparation step for both the blast furnace and direct reduction routes to iron. It is commonly carded out by a 'grate/kiln' process.
2 Pellet Process - Uses and Exposures - prepared by Corus Staal May 2010 Induration Induration, which means thermal treatment, consisting of drying, heating and cooling. It can be carried out by using two different systems; in 'straight grate' or 'grate kiln' systems. During thermal treatment
PDF | On Jul 11, 2018, Sandra Lúcia de Moraes and others published Iron Ore Pelletizing Process: An Overview. ... Schematic diagram of the straight grate induration process . ...
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. ... the straight travelling grate and ...
Induration process: the green pellets are hardened in a high temperature processing at controlled heating rates, and aiming to achieve the physical and metallurgical requirements for handling, transportation, and final application. This chapter aims to provide an overview and the evolution of iron ore pelletizing process including:
Nov 21, 2012· Mathematical model for a straight grate iron ore pellet induration process of industrial scale … University of Technology, P.O. Box 11365-9466, Tehran, Iran, … Grate-Kiln Process – Iron Ore Pelletising – Caiman Corporation. There are two major processes for the production of Iron ore pellets: Straight Grate … Grate-Kiln technology.
We present a mathematical model of iron ore pellet drying and induration in an industrial scale application, and validate it against measured data. The model is based on the laws of mass and heat transfer, and incorporates both physical and chemical processes. The partial differential equations of the process kinetic model involve derivatives in time and bed depth.
Basically a straight grate induration furnace consists of three different zones, i.e. a drying zone, a firing zone and a cooling zone, and their purpose is to upgrade crude iron ore to the final product of iron ore pellet. As an initial step of the project, the mass and energy flows within a straight grate induration furnace have been analysed.
ON-LINE OPTIMIZATION OF INDURATION OF WET IRON ORE PELLETS ON A MOVING GRATE FIELD OF THE INVENTION The present invention relates to the field of automated process control. Particularly, the present invention relates to a system for optimization of the operation of an induration …
T1 - CFD model of a straight-grate furnace for iron oxide pellet induration. AU - Englund, D. J. AU - Davis, R. A. PY - 2014/1/1. Y1 - 2014/1/1. N2 - A three-dimensional CFD model of a straight grate furnace for indurating iron-oxide pellets was developed for exploring conditions of furnace operation for fluid flow, heat transfer and reactions.
Mathematical models of straight-grate pellet induration processes have been developed and carefully validated by a number of workers over the past two decades. However, the subsequent exploitation of these models in process optimization is less clear, but obviously requires a sound understanding of how the key factors control the operation.
CIRCULAR PELLETIZING TECHNOLOGY • Proven process technology as utilized in straight-grate 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- grate equipment – only
Straight Grate Pellet Furnace - chatinin Straight grate induration machine - Straight grate systems do all the indurating on a single machine Drying, pre-heat, indurating and cooling are all done in one iron ore induration process - thechangefoundationin .
Dec 05, 2008· The latter process that was primarily developed by Lurgi and is currently owned by OutoKumpu Technology, accounts for two thirds of the world's installed pelletizing processes capacity. This study is focused on simulation of pellet induration process in the straight-grate system. 1.1. Description of induration process in straight-grate machine
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. Based on over 60 years' experience and world-class R&D, our process produces uniform pellets with excellent physical and metallurgical properties.
Nov 26, 2014· Iron Ore Pellets and Pelletization Process. Pelletizing of iron ore was started in the 1950s to facilitate the utilization of finely ground iron ore concentrates in steel production. For the pelletizing of iron ore there are two main types of processes namely, the straight travelling grate (STG) process and the grate kiln (GK) process.
Aug 25, 2016· Modern Grate, Kiln System flowsheet grate furnace kiln taconite coal fired straight grate iron ore induration ; Pelletizing expertise with the Grate, Kiln, Straight Grate …
Two types of systems are usually used for induration of the iron-ore pellets: (a) straight-grate and (b) grate-kiln process. A hearth layer of fired pellets is used in the former to protect grate bars from excessive heating. Fresh pellets are charged onto a hearth layer of the fired ones.
global website Products Iron ore pelletizing Straight grate induration machine Straight grate induration machine . pellets are brought down to a suitable temperature for downstream material handling equipment. The gases from the cooling zone are recycled to the indurating area and the pre-heat and drying zone, resulting in the straight .