The MIDREX process is a shafttype direct reduction process where iron ore pellets lump iron ore or a combination are reduced in a Vertical Shaft reduction furnace to metallic iron by means of a reduction gas see Figure 1139 9... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.
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Raw Material: iron ore Crushing Capacity: 300t/h Crushing Purpose: to turn iron ores with size less than 300mm into finished ores with size less than 5mm.More Details
Equipped with vibrator feeder, jaw crusher, sand maker (vertical shaft impact crusher), vibrating screen, sand washer, belt conveyor and central electronic control, sand making plant can process the granite, limestone, basalt, cobble and other materials t
Processing capacity: 50-520 t/hApplied material: granite, basaltMore Details
Comprehensive Utilization Of Iron Bearing Converter Wastes The proven metalized pelletproducing process would be highlighted that green pellets made from ironbearing sludge are dried and preheated in a traveling grate firstly and then reduced at high temperature in a rotary kiln or a rotary hearth furnace RHF to get direct reduced iron DRI served as a good iron source for blast furnaceMore Details
Nov 08 2007 · The method of reducing an iron oxide source in a multiple moving hearth furnace as claimed in claim 12 further comprising the conversion zone of each moving hearth having at least a devolatilization zone and a reduction zone sequentially positioned along each moving hearth and the step of transferring fluid between the atmospheres of the conversion zones of moving hearthsMore Details
Sep 23 2011 · Production of Direct Reduced Iron in Rotary Hearth Furnace 1 Production of Direct Reduced Iron in Rotary Hearth Furnacebr 2 Direct Reduced IronDRI br DRI Iron produced by reducing an iron ore 6570 iron by reducing gas H2CO at a temperature approx 8001050 °C high enough to burn off its carbon and oxygen contentbrMore Details
Ironmaking in the rotary hearth furnace RHF is a direct reduction process which utilizes noncoking coal for the reduction of iron ore The RHF is the process reactor which consists of a flat refractory hearth rotating inside a stationary circular tunnel kiln Inside the RHF direct reduction of iron ore or ironbearing waste materials occurs using coal as the reductantMore Details
A rotary hearth furnace is mainly used in direct reduced iron indistry iron ore powder is reduced and molten into pig iron in the condition of reducing atmosphere Its working temperature is up to 1520 ℃ A rotary heath furnace technology can also be used in the smelting of ferronickel ferrochrome and ferromanganese and other ferroalloyMore Details
The invented pellet reclamation process includes forming green pellets of a mixture of steel furnace dust a carbonaceous material such as coal charcoal lignite petroleum coke or coke and an organic binder The green pellets are fed over a layer of burnt pellets on a rotary hearth furnace which successively conveys the pellets first through a drying and coking zone in which the pelletsMore Details
A method and apparatus for producing direct reduced iron from dry compacts composed of iron oxide and carbonaceous material by feeding compacts no more than two layers deep onto a hearth andMore Details
A furnace consisting of several round stacked hearths The hearths are basically floors within a large cylinder The hearths alternate between inhearths and outhearths In hearths have a large hole in the center for material to pass through to the hearth below Outhearths have holes around the perimeter of the hearth for material to pass through to the hearth belowMore Details
The direct reduction processes in combination with the melting of directly reduced iron to produce steel in the EAF offer an alternative to the BFBOF route The basis of the direct reduction process is that solid sponge iron is produced by removing oxygen from the ore in a shaft furnace rotary kiln furnace or fluidised bed Sponge iron can be produced in the form of Direct Reduced Iron DRIMore Details