T1 - CFD model of a straight-grate furnace for iron oxide pellet induration. AU - Englund, D. J. AU - Davis, R. A. PY - 2014/11/1. Y1 - 2014/11/1. 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.

Jan 01, 2012· In Grate-Kiln process, green pellets are fed on oil or gas-fired endless Straight Grate machine where they are dried and preheated. The preheated pellets are then fed to a rotary kiln where their temperature is raised in oxidizing atmosphere to 1290–1400 °C. In induration, ore grains are sintered together with oxidation and slag-forming bonds.

Two indurating furnace technologies dominate the pelletizing industry, the straight travelling grate and the grate-rotary kiln technologies. Although some of Metal 7's products could be adapted for the grate-rotary kiln operation, the company mainly focuses on the straight travelling grate applications.

Vale S.A opened a 9 MTPA (2 x 4.5) Iron ore pellatisation plant in Sohar, Sultanate of Oman., on March 3rd, 2011. High grade iron ore for the plant is imported from Brazil & finished product is sold to Steel plants globally as a raw material feed for Blast furnace or Electric arc furnace.

Iron ore pellets can be made by two different processes, the Straight Grate process and the Grate Kiln process. The Grate kiln system consists of three machines; a traveling grate, a rotary kiln and an annular cooler which heats, hardens and cools the ore respectively.

Two industrial systems dominate the iron ore pelletising industry Outotec's travelling grate (accounting for over 2/3 global production) Grate-Kiln pelletising system Note: low capacity shaft furnaces have only regional relevance The Outotec travelling grate …

Oct 29, 2018· Both straight-grate and grate-kiln furnaces have been accepted in the iron ore industry. Both are considered to be roughly equal when comparing overall costs and expenses versus the final product production rate.

1 Iron ore grinding Dosing & Mixing Induration furnace Product intermediate bin 2 Additive storage & grinding Green balling Product classification Process gas cleaning ... CPT vs Straight Grate Comparison of Induration Furnace CPT: Top view Straight Grate: Top View 102 m 17 m 35 m CPT Plant: • 1/3 of Straight Grate in plant length

(2009). Multiobjective Pareto Optimization of an Industrial Straight Grate Iron Ore Induration Process Using an Evolutionary Algorithm. Materials and Manufacturing Processes: Vol. 24, No. 3, pp. 331-342.

Coal Fired Straight Grate Iron Ore Induration. coal fired straight grate iron ore induration. Iron ore fines are agglomerated into pellets and then indurated using a is the only supplier of both Straight Grate and Grate Kiln pellet plants or anthracite coal can be added to …

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.

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 ...

Both straight-grate and grate-kiln furnaces have been accepted in the iron ore industry. Both are considered to be roughly equal when comparing overall costs and expenses versus the final product ...

There are several iron ore pelletizing processes/technologies which are available for the production of the pellets. Some of these are (i) shaft furnace process, (ii) straight travelling grate process, (iii) grate kiln process, (iv) cement bonded processes (Grangcold process, MIS Grangcold Process, and char process etc.), and (v) hydro-thermal ...

CSP Pallet Cars & CSP Sinter Cars CSP is a leading worldwide supplier of pallet cars and sinter cars to OEM and the aftermarket. We have many successful working applications of CSP Pallet and CSP Sinter Cars in iron ore pelletizing and sintering plants worldwide having successfully supplied thousands of units in the last 25 years.

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. Hot gas is blown through the layer to dry-out and fire the pellets at about 1300 C. In the grate …

Dec 28, 2015· Pelletizing of iron ore is a method of Swedish origin, patented in 1912 by AG Andersson (Yamaguchi et al., 2010). The process was developed in the USA in the 1940s, and the first commercial plant started operation in Babbitt, Minnesota in 1952. The first iron ore pellet plant of the grate …

danieli straight grate iron ore pelletizing plant Iron ore pelletizing is the only supplier in the world that has both the Straight Grate and the Grate Kiln process for pelletizing We can help our customers to determine which process is the best for their ore, fuel and pellet requirements, straight grate iron ore pelletisation process diagram

currently offers the Grate Kiln Iron Ore Pelletizing system. With the purchase of the Straight Grate Technology from Jacobs, will become the only supplier in the world of both systems. …

–– Iron Ore Pelletization Iron Ore ... Comparison Straight Grate vs. Grate Kiln Maintenance 43 Straight Grate Grate Kiln •Pallet cars can be taken off-line for maintenance •System must be shut-down for maintenance •Pallet cars made of alloy steel parts •Grate …

Request PDF | 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 the iron-ore ...

PROJECT, COMMISSIONING & OPERATION OF 3.85MTPA STRAIGHT GRATE TECHNOLOGY IRON ORE PELLETIZING PLANT Bhushan Power and Steel Limited. Sep 2011 – Jun 2017 5 years 10 months. Jharsuguda Area, India. OPERATION WORK OF 3.85Mtpa IRON ORE …

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 …

This was the first iron ore pelletizing plant installed for Wuhan Iron & Steel Company Equipment Specifications : Traveling Grate – 5664 mm x 69500 mm Rotary Kiln – 6858 mm diameter x 45720 mm long Annular Cooler – 21945 mm x 3657 mm Plant Commissioning : March 2006 Iron Ore Feed Material: Combination of 80% Hematite and 20% Magnetite

Used Jumbo Crusher For Sale Customer Case. Diligence coal crusher coal fired straight grate iron ore induration Iron ore fines are agglomerated into pellets and then indurated using a TON is the only supplier of both Straight Grate and Grate Kiln pellet plants or anthracite coal can be added to the mix to work as an internal fuel to help fire the pellets crushing system rental in

Iron ore fines are agglomerated into pellets and then indurated using a furnace to create iron ore pellets. These are typically fed to a blast furnace or DRI plant as part of the process to make steel. is the only supplier in the world that has both the Straight Grate and . Influence of limestone particle size on iron ore …

(traveling grate furnaces, straight grate pelletizing plant) The experimental data show that the Lurgi traveling grate machine has great scope for increase in burner anddraft-unit power. Mathematical simulation permits the development of various options for the thermal system,with gradual increase in pellet output from 3.2–3.5 to 4.5 million ...

Aug 07, 2012· Corporation : to acquire iron ore pelletizing technology and know-how from Jacobs Corporation's press release on August 7, 2012 at 2:45 p.m. local time 's Mining …

There are several iron ore pelletizing processes/technologies which are available for the production of the pellets. Some of these are (i) shaft furnace process, (ii) straight travelling grate process, (iii) grate …

Grate Kiln design allows for a lower bed depth compared to a straight grate, resulting in more uniform temperature profile, a lower pressure drop, and less power consumption. Process overview Grate Kiln systems consist of three major pieces of equipment.

results in iron ore, cement, nickel, lime and alumina industries. Improving the efficiency of iron ore pelletizing plants. Modeling techniques have been applied by FCT Combustion in different industries including iron ore pelletizing in both traveling straight grate …

Mathematical model for a straight grate iron ore This article focuses on the straight grate type of the pellet indu process. In industrial . Get Price. A New On Line Method for Predicting Iron Ore Pellet . The Abrasion Index (AI) describes fines generation from iron ore …

Sep 30, 2012· These plants produce pellets at a lower cost and higher quality than other types of pelletizing systems, such as shaft furnaces or straight grates. Concentrate / ground Iron ore …

Aug 07, 2012· to acquire iron ore pelletizing technology and know-how from Jacobs HELSINKI, FINLAND -- (Marketwire) -- 08/07/12 -- Corporation's …

Straight grate systems do all the indurating on a single machine. Drying, pre-heat, indurating and cooling are all done in one integrated furnace. is one of the original technology suppliers for straight grate systems having acquired the technology from Dravo and Jacobs.