drying and preheating processes of iron ore pellets in a traveling grate

use of boron compounds as binders in iron ore Veneer Magazine

In pelletizing a mixture of iron ore water and binder is rolled in a mechanical disc or drum to produce agglomerates green balls or wet pellets Green pellets then undergo a thermal process which consists of three stages namely drying 250–400°C preheating 900–1100°C and firing 1200–1300°C Pellets are nbsp

Mathematical model for a straight grate iron ore pellet induration

These pellets are loaded onto a travel ing grate where they are iron ore pellets a straight grate and b grate kiln process A hearth layer of fired charged onto the grate are subject to up draft drying down draft drying and preheating

use of boron compounds as binders in iron ore Veneer Magazine

High grade iron ores which can be used directly in the blast furnace to produce namely drying 250–400°C preheating 900–1100°C and firing 1200–1300°C Binder plays an important role in the success of the pelletizing process 3 In travelling grate a minimum dry pellet strength is necessary so that the pellets

Drying and preheating processes of iron ore pellets in a traveling grate

Oct 9 2010 Abstract A mathematical model of drying and preheating processes in a traveling grate was presented based on the laws of mass momentum

Study of the Methodology of Iron Ore SlideShare

2 Mar 2017 It discusses about the basics of iron ore pelletisation different process technologies of pelletisation current status of Indian iron ore pelletisation indus Comparative Analysis of Travelling Grate and Grate kiln Technologies Item Travelling grate Grate Kiln Heat Hardening cycle Drying preheating nbsp

heat treatment of iron ore agglomerates with microwave CiteSeerX

In this study heat treatment of iron ore agglomerates with microwave energy is investigated First drying and then heat hardening tests magnetite content for the dried pellets and compressive strength and also magnetite content for the fired pellets The tests were 2 1 4 2 Horizontal Traveling Grate Process 19 nbsp

Pelletizing Process

29 Dec 2010 process The pretreatment includes concentrating dewatering grinding drying and prewetting In general low grade iron ore is ground into fines Grate Grate Kiln Cooler Items No Pellet quality 1 Grate Kiln Cooler process enables all pellets to be uniformly and adequately heat hardened by

Iron Ore Pelletizing GrateKiln System Brochure

Process flexibility Pelletization process There are two main processes for producing iron ore pellets The GrateKiln system and the straight grate system In the straight grate system a continuous parade of grate cars moves at the same speed though the drying induration and cooling zones

traveling grate for grate kiln process pictures

Iron ore pelletizing GrateKilnTM system The GrateKiln 174 induration machine is composed of three separate process pieces of equipment The traveling grate is used primarily to dry and preheat green balls for feeding into the rotary kiln where they are indurated Once the green balls are made they are spread out evenly across the grate The traveling grate

WHAT IS AN INDURATING FURNACE

of the process routes for preparing iron ore fines for use in blast furnaces and In an Indurating Furnace the pellets are loaded on to a travelling grate to a depth of Updraft drying UDD gt Down draft drying DDD gt Preheating Ramp

kiln iron–ore pellet induration process PDF Free Download

A Dynamic Mathematical Model of the Complete Grate Kiln IronOre Pellet Induration Process J A THURLBY Induration drying and hardening of iron ore pellets is an energyintensive feed preparation step for both the blast furnace and direct reduction routes to iron It is commonly carded out by a grate kiln process

Iron Ore Pellets Iron Ore All about Iron Ore

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

Iron ore pelletisation plant using the grate kiln process

Iron ore pelletisation plant using the grate kiln process There are two major processes for the production of iron ore pellets – straight grate amp grate kiln Straight grate plants are expensive amp suited for large scale production a chain grate system is used for drying amp preheating the green balls to be fed into the rotary kiln where

Pelletising Iron and Steel Howden

Whether using the straight grate process or adding a rotary kiln to make the gratekiln process our products are key to the process To dry and heat the ore pellets a number of fans are used to recycle heat from the kiln

straight grate travling for iron ore pellet santhosa

Drying and preheating processes of iron ore pellets Drying and preheating processes of iron ore pellets in a traveling grate naces in China Compared to shaft furnace and straightgrate Optimizing the operation of straightgrate ironore pellet Optimizing the operation of straightgrate ironore pellet induration systems using process models

WHAT IS AN INDURATING FURNACE

the travelling grate and in others take the form of a rotary kiln Once hardened the pellets are cooled ready for use In a modern Indurating Furnace there are 6 to 7 processing zones Updraft drying UDD gt Down draft drying DDD gt Preheating Ramp gt Firing gt After firing gt Cooling Iron Ore Pellets The thermal nbsp

Influence of Pellet Basicity CaO SiO2 on Iron Ore Pellet Properties

2 Pelletization Process at JSW Steel Limited Production of iron oxide pellets from iron ore fines in volves different steps from drying to induration The ore fines are initially tion basicity on iron ore pellets microstructural physical and metallurgical properties basket trials have The travel ling grate carries the pellets

Iron Ore Pelletization Technology and its Environmental Impact

Jun 30 2015 Also focus on the present status of iron ore reserves in India inventory of iron Technology The process of pelletization enables converting Iron Ore Fines System the travelling grate is used to dry and preheat the pellets

–– Iron Ore Pelletization Iron Ore

GrateKiln iron ore pelletizing system Principles of operation Traveling gratePellets are dried and partially indurated through multiple cross flow process zones updraft drying downdraft drying tempered preheat and preheat strengthening pellets for processing in rotary kiln

Iron Pellets Processing Grates

Iron ore pelletization Iron Ore 15 The straight grate process consists of a a traveling grate for drying and preheating green Iron ore pellets are Get Price And Support Online Traveling Grate Pelletizing Plant Outotec Outotec s traveling grate pelletizing plant is the industry s leading induration technology for iron ore pellet

Drying of Iron Ore Pellets Analysis with CFD

Pellets can be indurated in shaft furnaces in gratekilns and on traveling grates The principle of sintering pellets is almost the same in gratekilns and on traveling grates The process starts with up draught drying UDD followed by down draught drying DDD a preheating

Iron Ore Pellets and Pelletizing Processes Scribd

Fig 2 Straight Travelling Grate Process Typical flow sheet The Grate Kiln Process was developed by Allis Chalmer and the first plant on this technology was constructed in 1960 In the Grate Kiln process Fig 3 the traveling grate is used to dry and preheat the pellets Material moves on straight travelling grate till it attains nbsp

1 TECHNO ECONOMIC EVALUATION OF IRON ORE PELLET

However as a result of preparation and enrichment processes in the iron ore a Grate Kiln System the travelling grate is used to dry and preheat the pellets

Understanding Pellets and Pellet Plant Operations – IspatGuru

Mar 21 2015 nbsp 0183 32Understanding Pellets and Pellet Plant Operations Pelletizing is an agglomeration process which converts very fine grained iron ore into balls of a certain diameter range normally 8mm to 20 mm also known as pellets These pellets are suitable for blast furnace and direct reduction processes

OUTOTEC TRAVELING GRATE PELLETIZING

Outotec Traveling Grate Pelletizing is the industry 39 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 39 experience and world class R amp D our process produces uniform pellets with excellent physical and metallurgical nbsp

Traveling Grate Dryer For Iron Ore Pelletizing Plant Buy

Traveling grate is an equipment which uses exhaust heat and hot air from a annular cooler amprotary kiln to dry green iron pellets preheating oxidation of consolidation and then directly feed into the rotary kiln The powder from the traveling grate is collected to the hopper and reused

Drying and preheating processes of iron ore pellets in a traveling grate

Drying and preheating processes of iron ore pellets in a traveling grate Jun xiao Feng Yu Zhang Hai wei Zheng Xiao yan Xie and Cai Zhang School of Mechanical Engineering University of Science and Technology Beijing Beijing 100083 China Received 16 September 2009 revised 19 October 2009 accepted 5 nbsp

iron ore drying and grinding riversidevets

mobile drying grinding iron ore dry grinding equipment for grinding iron ore to the traveling grate furnace for further drying and preheating CEMTEC is recognised worldwide as a specialist in wet and dry grinding technologies for the most wideranging bulk materials industrial minerals and ore

Experiences and Operational Results with a Chromium ore

flotation concentrate and hearth concentrate principle of the LEPOL process also known as the 39 Grate kiln Process 39 The LEPOL plant consists of a combination of travelling grate and rotary kiln The chain of the travelling grate is fed with pellets which are de watered dried and preheated while passing through the

Indian Pellet plant MECON Limited

Huge quantity of iron ore fines are accumulated at different mines head during mining and remain un utilized in our Pellet plant based on Travelling grate TG process will meet the above demand Two major process routes machine area zone length in drying and pre heating indurating machine speed etc In addition nbsp

equipment for preheating iron green peelet hospetsteels

Iron ore pellets and Pelletizing processes ispatguru Feb 23 2013 It is the process of converting iron ore fines into Uniformed Sized Iron Ore During drying 180350 deg C moisture content in the green pellet is In the GrateKiln process Fig 3 the traveling grate is used to dry and preheat the pellets

Iron and Steel 2020 pdf Indian Bureau of Mines

These additions react with the gangue in the iron ore to enhance the performance of the pelletsincertain downstream processing steps 4 2 4 3 Grate kiln Process This process was developed by Allis Chalmers for magnetite or magnetite plus hematite blend Green pellets fed onto a travelling grate are dried and preheated nbsp

Drying of Iron Ore Pellets Analysis with CFD

Simulation of heat transfer and fluid flow in a porous bed of iron ore pellets during up draught drying International Conference on CFD in the Process Industries 2006 optimizing the drying zone of a traveling grate pelletizing plant and to start followed by down draught drying DDD a preheating zone a burn zone

Drying of Iron Ore Pellets Analysis with CFD DiVA portal

grates The principle of sintering pellets is almost the same in grate kilns and on traveling grates The process starts with up draught drying UDD followed by down draught drying DDD a preheating zone a burn zone and a cooling zone The zone for burning is called firing on traveling grates and in great kiln for kiln

ESP Case Study 2 Thermax

Pellet application Case Study Iron Ore Pellatisation Application in Steel Industry – Grate Kiln Process Primary Downdraft Drying ESP Vale Pellatisation Company LLC Sultanate of Oman THE CUSTOMER PROFILE Vale S A is a Brazilian multinational diversified metals and mining corporation In addition to being the

Brochure Grate Kiln for Iron Ore Pelletizing EN

Tempered preheat There are two main processes for producing iron ore pellets The Grate Kiln system and The traveling grate is used primarily to dry

Iron Ore Mining Process Iron Ore Mining and Processing

The process of mining lowgrade iron ore or taconite requires massive resources Heavy industrial mining equipment expansive mines and a skilled labor pool are all required Some of the equipment includes diamondbit rotary drills hydraulic shovels and loaders waterwagons production trucks and heavy duty conveyors

Grate Kiln System for iron ore pelletizing

Downdraft drying Preheat zone Rotary kiln Zone 1 Zone 2 Zone 3 Zone 4 Pellets Stack Travelling grate Green balls Modern Grate Kiln System flowsheet Annular 3 Iron ore pelletizing Process flexibility There are two main processes for producing iron ore pellets The Grate Kiln system and the straight grate system

Iron ore pelletization ScienceDirect

Figure 15 1 shows the flow sheets for modern straight grate and gratekiln pelletizing processes The straight grate process consists of a single furnace which is divided into different zones for drying preheating and indurating green balls and zones for cooling the fired pellets

 

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