Jan 05, 2013 Asias longest tunnel kiln sponge iron production into trial . Asias longest tunnel kiln sponge iron production into trial production. the main production of new steel-making charge sponge iron in place of steel scrap as raw More detailed
Quality of sponge iron made by the Tunnel Kiln technology is superior as compared to that made from the rotary kilns because, while the input raw material gets just about 24hours for the reaction, the figures almost reverse in case of the Tunnel Kiln.
The invention is about the producing method of the sponge iron. The process is 1 make the material into the double iron oxide ball 2 put the double iron oxide ball and the reductant into the reaction tank to get the sponge iron ball mass 3 put the mass into the thermal insulating flume to separate the reductant, to remove the C, S,O in the protection of the N2 or the H2 to produce the ...
Quality of sponge iron made by the Tunnel Kiln technology is superior as compared to that made from the rotary kilns because while the input raw material gets just about 24hours for the reaction the figures almost reverse in case of the Tunnel Kiln. More Detail Dri Production Tunnel Kiln Sponge
Apr 28, 2013 buy Rotary Kiln for Sponge Iron high quality Manufacturers . DRI tunnel kiln for sponge iron the capacity of the kiln or turnkey plant can be more .rotary kiln apply in the metallurgy ,the steel and iron,the chemical industry. . Which is easy to make the plane of roller and kiln tire surface to keep parallel More detailed
Direct-reduced iron DRI, also called sponge iron, is produced from direct reduction of iron ore in the form of lumps, pellets or fines by a reducing gas produced from natural gas or coal. The reducing gas is a mixture majority of hydrogen H2 and carbon monoxide CO which acts as reducing agent. This process of directly reducing the iron ...
crushing stations. The sponge iron is crushed to a particle size below 3 mm. It is subsequently stored in a silo before going through furthermore crushing and milling. 9, A typical sponge iron analysis of the crushed sponge iron is showed table 1. 10 The table shows different elements and how big percentage they taking up in the sponge iron.
Sieurin invents sponge iron method The H gan s Method is invented by engineer Emil Sieurin. The method means reducing iron ore with the help of coke, lime and clay. After patenting the method, H gan s starts production in 1911 and in 1912 a plant is built. Later on, H gan s will start grinding the reduced iron to powder, sponge iron powder.
One tunnel alone, the infamous Summit Tunnel, then known as Tunnel No. 6, was at an elevation of 7,000 feet and was the longest tunnel built, cutting through approximately 1,750 feet of solid granite. The 1860s were a transitional time for tunneling technology, bringing new equipment and methods to a laborious process.
The process includes three steps. First, iron oxide fines, pulverized coal and a binder are formed into pellets. Second, the pellets, two to three layers deep, are heated in a gas-fired rotary hearth furnace for 1520 minutes to produce sponge iron. Subsequently, the iron must be desulfurized.
New Technology Tunnel Kiln to make Sponge Iron DRI in India . 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 fire
Sponge iron is basically deoxidized iron in the form of lumps, pellets and fines. Sponge iron and steel scrap are charged in appropriate ratio into the induction furnaces in batches. After the complete melting of charge, the hot liquid metal samples are taken to analyze the chemical composition i.e. carbon, sulphur, phosphorus, silicon ...
Alibaba.com offers 14,784 sponge iron of china products. A wide variety of sponge iron of china options are available to you, such as key selling points, local service location, and processing service.
Rotary Kiln Process of Making Sponge Iron C. Rotary Kiln Process of Making Sponge Iron 13 that the entire production by number 2, 3 and 4 countries is through gas ... Read more sponge iron by tunnel process
Tunnel Kiln Technology For Sponge Iron Grinding Mill . Tunnel kiln process sponge iron technology consulting,gold tunnel kiln for making of sponge tunnel kiln to make sponge iron case group has set up indias first dri sponge iron unit using tunnel kilnmini integrated steel plant consultant learn moreollution control devices for dri tunnel kiln quarry mining.
Tunnel Kiln Process For Sponge Iron Making. Aug 26, 2015 tunnel kiln process for sponge iron making Tunnel technology of iron sponge makingAug 8, 2016 . In the tunnel kiln process contemplated by 1 . tunnel furnace sponge iron - tunnel furnace for sponge iron - gujaratgenomics.
We offer third generation tunnel kiln process from China, to convert soft iron ore lumps or briquetted iron ore fines into Direct Reduced Iron DRI. DRI or sponge iron is a high-quality metallic product and used as a feed-stock in the induction furnace electric arc furnace.
CASE Group success story includes commissioning DRI Tunnel Kiln, first of its kind in India for use of all kind of iron ore fines. The cost-effective tunnel kiln technology brings final product which has density of 4 GMSCC thus making it usable directly for melting in induction furnace, arc furnaces.
This process is the main part of this technology to get pellets amp sponge iron of 2 to 8 mm size reduced to DRI. Tunnel kiln is divided into three zones to complete reduction
Nov 25, 2012 DRI tunnel kiln for sponge iron China Mainland Brick Making DRI tunnel kiln for sponge iron,complete details about DRI tunnel kiln for sponge iron provided by xzx kiln Equipment Co.,ltd. You may also find other latest DRI More detailed
The process of Tunnel Kiln uses fines of Iron ore and Coal which are mixed together in specified propotions to eventually make DRI having quality grades of 90 plus metallization. The Technology . Iron Ore Fines and Coal Fines mixed together are loaded into SiC Silicon Carbide beakers which are then loaded onto the cars.
Dec 07, 2020 Production technology of sponge iron. The production of sponge iron is made by rolling iron oxide sheet, roasting at high temperature in tunnel kiln or rotary kiln, and reducing iron oxide by pulverized coal. The metal conversion rate has an important effect on the quality and production cost of the final reduced iron powder.
utilization in the production of sponge iron by reduction of magnetite ore concentrate. The sponge iron process was created in 1910 by Sven Emil Sieurin, and is a solid-state reduction process with a fine iron powder as the end product Nationalencyklopedin, 2018. Today the sponge iron process
Tunnel Technology Of Iron Sponge Making -, tunnel technology of iron sponge making - reduction of iron ore from tunnel kiln process New Technology Tunnel Kiln to make Sponge Iron , 22 Nov 2011, The Kiln which is 194m in length, is the Tunnel Kiln Process For Sponge Iron Making .
The relates coal-base direct reduction process for sponge iron with different shape by tunnel kiln without outer combustion chamber and the combination comprises as shown in abstract figure to iron concentrate, firing pellet, cooling or compacting preparing the reducer blending, loading into retort entering the kiln out the kiln and sorting.
DRI, also known as sponge iron, is the product of reducing iron oxide in the form of iron ore and steel plant wastes into metallic iron, below the melting point of iron and typically in the range of 8001200 C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of pellet, iron ore lumps, or fines. The reduction takes place using gaseous reductants CO H ...
Apr 25, 2015 Tunnel technology 1. Tunnel Technology By Allah Dad Khan ... grown Tunnel Type Tunnel Height Cucumber Tomato Bottle gourd High tunnel 10 to 12 feet Sweet Pepper Hot pepper Walk in tunnel 5 to 6 feet Sponge gourd Water melon Musk melon Bitter gourd Bottle gourd Low tunnel 2.5 to 3 feet ... Pipe Structure Made by iron pipe of 1.5 dia amp 14 ...
The layout of the process followed for iron amp steel making is given below India is the worlds largest producer of Direct Reduced Iron DRI or Sponge Iron. During 2017-18, total production of sponge iron is reported at around 30.511 million tonnes of which 85
Mar 25, 2020 FIG. 1, A curve on iron oxide reduction process by carbon in 38.5meter tunnel kiln Fig. 1 is a valuable curve for teaching, research and production. It also has reference value for blast furnace ironmaking. From fig 1, three conclusions can be orbtained a, The reduction process of iron oxide by carbon is step by step..
GoodRich offers high-pressure briquetting plant from a specialized manufacturer in China, to briquette iron ore fines. These briquettes can be used in the rotary kilns for making sponge iron. Briquetting is an agglomeration process, similar to pelletizing or sintering, but without the need for thermal processing.
A tunnel is an underground or underwater passage that is primarily horizontal. Relatively small-diameter ones carry utility lines or function as pipelines. Tunnels that transport people by rail or by automobile often comprise two or three large, parallel passages for opposite-direction traffic, service vehicles, and emergency exit routes.
Tunnel Kiln history dates back to 1807 when Hoganas first used this process to produce iron powder of 999 purity When iron ore is mined or processed in a crusher lots of fines are generated Sponge Iron By Tunnel Process sponge iron by tunnel process CASE offers international standard DRI tunnel Kiln product through SKBIT Process. More Detail
In the year 1908 use of tunnel kiln started for iron oxide reduction. This process was invented by E.Sieurin as Hoganas process. In 1954, more kilns came in operation in SWEDEN and USA. Presently it is more popular in China for sponge iron production from beneficiated iron ore fines cakes.
The amount of sponge iron in the charge mix varies from 0-90 depending on its availability and economics of production. Majority of the steel produced through induction furnace route is plain ...
TUNNEL KILN Coal-based DRI Plant Production of sponge iron by Tunnel Kiln technology was developed in 1911 as H gan s method. Now very popular, the technology has become an effective method for sponge iron production. With the Tunnel Kiln technology, it is possible to build small plants with low investment costs.