coal used for heating and reduction sponge iron tunnel kiln

coal used for heating and reduction sponge iron tunnel kiln

SPONGE IRON PRODUCTION FROM ORE -COAL

2014-9-2  Keywords: Tunnel Kiln, Iron ore-coal composite pellets, Sponge iron, Thermal efficiency, Carbon utilization efficiency, Percentage metallic iron . 1. INTRODUCTION The tunnel kilns are mostly used by the ceramic industries for heating refractory and ceramic products [1-2]. In the year 1908 use of tunnel kiln started for iron oxide reduction. This

tunnel kiln process for sponge iron

tunnel kiln process of iron ore reduction. SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE In the year 1908 use of tunnel kiln started for iron oxide reduction. This process was invented by E.Sieurin as Hoganas process [3]. In 1954, more

Reduction Efficiency of Iron Ore–Coal Composite

Reduction Efficiency of Iron Ore–Coal Composite Pellets in Tunnel Kiln For Sponge Iron Production February 2015 Transactions of the Indian Institute of Metals 68(5)

Tunnel Kiln Coal Based DRI Plant, टनल किलन in Village

Reaction time of 42 hours in the Tunnel Kiln provides ample opportunity for the raw material to completely react and this results into superior Fe metallic from the end product; Flow chart of the Tunnel Kiln process is as under; Tunnel Kiln history dates back to 1807 when Hoganas first used this process to produce iron

Sponge Iron Production Process Arij Trading

2021-6-12  Market share: About 23% of sponge iron total production. 4) Tunnel furnace process . This process is the oldest direct reduction method. In this method, Thermal coal is mixed with iron ore as a reducing agent. Natural gas generates the required reduction temperature, and reduction is performed on Silicon Carbide (SiC) Crucibles in a tunnel

Energy survey of the coal based sponge iron industry

2015-9-1  In conventional coal based sponge iron plant, Fig. 1, kiln feed (Stream no. 1), which consists of iron ore, feed coal and dolomite, is fed to the rotary kiln (RK).A separate conveyor collects different size fractions of coal (Stream no. 5) for injection into the kiln with the help of pressurized air (Stream no. 4) from discharge end side.

Coal based Direct Reduction Rotary Kiln Process

2017-2-14  Fig 1 Cross section of rotary kiln. Coal based direct reduction process is based on the solid reducing agent which is non-coking coal. The reaction takes place at high temp (1000 deg C to 1100 deg C). Coal plays a dual role in the kiln. Part of coal is used as fuel to supply the desired heat so as to take the raw materials to the desired

Accretion Control in Sponge Iron Production Kiln using

2020-8-3  Rotary kilns are found in many processes that involve processing of solids. This study focuses on sponge iron kiln based process. The chemical process involved in making sponge iron removes oxygen from iron ore by using a reducing agent in the form of non-coking coal [Patra et al, (2005)]. The reduction process is carried out

(PDF) Dynamic Modeling of a Tunnel Kiln

Modeling and optimization were studied by (Kaya et al., 2009) for a tunnel kiln firing zone to find the optimal feed locations and mass fluxes of the pulverized coal and secondary air.

PROCESS FOR PRODUCTION OF SPONGE IRON

Process for production of sponge iron by direct reduction of iron ore wherein iron ore admixed with a carbonaceous reducing agent is passed through a rotary kiln countercurrent to a gas stream, and wherein granular coking high volatile coal is injected co-current to said gas stream as a solid reducing agent by means of oxygen containing gases through an inlet pipe, and said solid reducing

Sponge Iron Production Process Arij Trading

2021-6-12  Market share: About 23% of sponge iron total production. 4) Tunnel furnace process . This process is the oldest direct reduction method. In this method, Thermal coal is mixed with iron ore as a reducing agent. Natural gas generates the required reduction temperature, and reduction is performed on Silicon Carbide (SiC) Crucibles in a tunnel

Rotary Kiln with SL/RN Process electrotherment

Rotary Kiln with SL/RN Process. Rotary Kiln with SL/RN Process. Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, and 500 TPD) Solid-state reduction of Iron Ore using either coal/gas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron (DRI).

DRI Tunnel Kiln, टनल किलन in Faridabad,CASE Group

Sponge Iron, also known as Direct Reduced Iron is the product produced out of using iron ore. The iron ore is processed through reduction process by the use of gas that emits from natural coal gas resource. CASE Group of Industries manufactures sponge iron by using tunnel kiln, following reduction of iron ore through Static Kiln Briquetted Iron

tunnel kiln process for sponge iron making

Tunnel Kiln Process For Sponge Iron Making in Nigeria TY in .. Huanggang Z Kiln&FURNACE Co.,Ltd. Our company has made the sponge iron tunnel kiln and matching refueling system equipment intechnical essence of Hoganas tunnel kiln process. Since 1990 the senior managers of OTSK began to develop the tunnel kiln for sponge iron cooperated. Read more

Accretion Control in Sponge Iron Production Kiln using

2020-8-3  Rotary kilns are found in many processes that involve processing of solids. This study focuses on sponge iron kiln based process. The chemical process involved in making sponge iron removes oxygen from iron ore by using a reducing agent in the form of non-coking coal [Patra et al, (2005)]. The reduction process is carried out

Behavior of three non-coking coals from Iranian’s

2017-1-1  The tunnel kiln direct reduction of iron is a volumetric method in which raw material consumption is based on the volumetric capacity of refractory crucibles. This process requires non-coking coal with less than 10% volatile material, ash content up to 25%, more than 65% carbon and particle size that may typically vary between 0.5 mm and 7 mm.

2 D Model of Sponge Iron Rotary Kiln Developed Using CFD

2015-5-17  kiln and ore heating kiln for U.S steel were verified with this model. The author found that predicted kiln length by simulation close to the actual kiln length [1]. A heat transfer steady-state model was developed by Ghosdastidar and Unni for non-reacting zone of the rotary kiln, which was used for drying and preheating of wet solids.

reitec tunnel kiln direct reduction contacts

Tunnel Kiln For Sponge Iron Production. Case Group Tunnel Kiln Iron Ore Plant ra . New technology tunnel kiln to make sponge iron dri in . nov 22, 2011 case group has set up indias first dri sponge iron unit using tunnel kiln. the kiln which is 194m in length, is the longest in india was successfully fired on 20112011 at mtpl, wardha.

PROCESS FOR PRODUCTION OF SPONGE IRON

Process for production of sponge iron by direct reduction of iron ore wherein iron ore admixed with a carbonaceous reducing agent is passed through a rotary kiln countercurrent to a gas stream, and wherein granular coking high volatile coal is injected co-current to said gas stream as a solid reducing agent by means of oxygen containing gases through an inlet pipe, and said solid reducing

System for control of sinter formation in iron oxide

The material discharged from the discharge end 6b of reduction kiln 6 by means of a sealed transfer chute consists of a mixture of sponge iron, coal char, coal ash and desulfurizing agent. This material is cooled in a rotary cooler 15 which is sealed from the ambient atmosphere, fitted with lifters, and cooled externally with water.

Sponge Iron Production Process Arij Trading

2021-6-12  Market share: About 23% of sponge iron total production. 4) Tunnel furnace process . This process is the oldest direct reduction method. In this method, Thermal coal is mixed with iron ore as a reducing agent. Natural gas generates the required reduction temperature, and reduction is performed on Silicon Carbide (SiC) Crucibles in a tunnel

Rotary Kiln with SL/RN Process electrotherment

Rotary Kiln with SL/RN Process. Rotary Kiln with SL/RN Process. Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, and 500 TPD) Solid-state reduction of Iron Ore using either coal/gas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron (DRI).

Gasifier For DRI Rotary Kiln CASE Group |CASE Coal

2019-10-4  Gasifier For DRI Rotary Kiln. CASE introduces another first in India by introducing coal gasifier for DRI Rotary Kiln saving tremendous coal used for reduction of Iron Ore. The system could be easily installed in the present setup&is totally PLC controlled Automatic equipment. India is largest producer of Sponge Iron in the world.

rotary kiln process of making sponge iron Solution

Sponge iron making is a process in which iron ore lumps for a rotary kiln coal based sponge iron manufacturing process to be successful it is absolutely 8122424015 9788122424010 Advances Rotary Kiln Sponge Iron Plant Role of Coal in Rotary Kiln Sponge Iron Making Process 6. Quantity of Protective Char 7. Reduction of Iron Oxide 8

PROCESS FOR PRODUCTION OF SPONGE IRON

Process for production of sponge iron by direct reduction of iron ore wherein iron ore admixed with a carbonaceous reducing agent is passed through a rotary kiln countercurrent to a gas stream, and wherein granular coking high volatile coal is injected co-current to said gas stream as a solid reducing agent by means of oxygen containing gases through an inlet pipe, and said solid reducing

Accretion Control in Sponge Iron Production Kiln using

Rotary kilns are found in many processes that involve processing of solids. This study focuses on sponge iron kiln based process. The chemical process involved in making sponge iron removes oxygen from iron ore by using a reducing agent in the form of non-coking coal [Patra et al, (2005)]. The reduction

corbothermic reduction of iron in tunnel kiln BINQ

2013-2-28  Articles Production of Sponge Iron through Tunnel Kiln Process . The carbothermic reduction of iron ore takes place in horizontal tunnel kiln. In place of sized graded iron ore, tunnel kiln process uses iron

sponge iron process

2010-7-29  All the Sponge Iron processes are very sensitive to the physical an chemical characteristics of raw materials. Extensive testing is required for evaluating the suitability of these raw materials for the manufacture of Sponge Iron. Iron Ore: Lump iron ore in the size range of 5-20mm can be used in all coal based rotary kiln processes.

Different Types of Kiln Construction The Spruce Crafts

2019-11-11  Sprung arches do, however, displace weight outward. Due to this outward tension, sprung arch kilns are framed with angle iron to support the arch and reduce any movement of the firebricks used to build the kiln. Sprung arch kilns may be designed

Difference In DRI Technology And Sponge Iron Technology

2016-11-28  Direct reduction technology is applied in the production of sponge iron (DRI), pig iron and cold briquetted iron (CBI). Ironmaking technology includes the following three processes: 1. The first generation of melting reduction process, i.e. blast furnace ironmaking process, its product is pig iron. 2.