Kobe Steel Rotary Hearth Furnace

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Prospects for Coal-based Direct Reduction Process

Kobe Steel has developed coal-based direct reduction (DR) technologies, the FASTMET, FASTMELT and ITmk3 processes, which reduce carbon composite agglomerates (pellets or briquettes) on the hearth of a rotary hearth furnace (RHF). This paper outlines the features of each process, status of technical development and commercialization.

kobe iron ore rotary hearth furnace - minimaalroyaal.nl

Rotary Hearth Furnace Technologi carbon monoxide from the iron reduction supplies the primary energy to the RHF for the reduction reactions The FASTMET Process is extremely energy efficient, unlike other new coal-based ironmaking processes that require offgas energy credits, as all fuel energy is consumed within the FASTMET rotary hearth furnace (100 percent post combustion)

kobe steel rotary hearth furnace - thgroup.co.za

Over the past 10 years, Midrex and Kobe Steel have been developing the FASTMET process that will enable the steelmaker to deal with steel mill waste problems. The FASTMET Process converts steel mill wastes, with or without the addition of iron ore fines, into metallized iron in a rotary hearth furnace (RHF) using carbon as the reductant.

ROTARY HEARTH FURNACE - KABUSHIKI KAISHA KOBE …

13-07-2017· A rotary hearth furnace according to the present invention capable of solving the foregoing problem is a rotary hearth furnace serving for heating an agglomerate, the agglomerate including an iron-oxide containing material and a carbonaceous reducing material, and for reducing an iron oxide to thereby produce a reduced iron, the rotary hearth furnace including: a means for supplying the ...

Rotary hearth furnace - Kobe Steel, Ltd.

12-04-2011· Rotary hearth furnace for producing reduced metal and method of producing reduced metal: 2004-02-03: Harada et al. 432/138: 6305931: Rotary hearth furnace with lightened construction: 2001-10-23: De Marchi et al. 432/138: 4578031: Dimensionally stable movable furnace hearth: 1986-03-25: Johnson et al. 432/138: 2074662: Rotating hearth furnace ...

Features of FASTMET Process - 神戸製鋼所

steel mill waste or iron ore fines, into metallized iron in a rotary hearth furnace (RHF) using solid carbon sources, such as coal, as the reductant. Since 2000, the current commercial operations have enabled steelmakers to deal with metallic waste problems. In 2009, Kobe Steel …

Features of FASTMET Process - 神戸製鋼所

steel mill waste or iron ore fines, into metallized iron in a rotary hearth furnace (RHF) using solid carbon sources, such as coal, as the reductant. Since 2000, the current commercial operations have enabled steelmakers to deal with metallic waste problems. In 2009, Kobe Steel …

ROTARY HEARTH FURNACE - Kabushiki Kaisha Kobe …

23-08-2012· A rotary hearth furnace (1) has therein a series of zone spaces (3) which are divided by vertical walls (2) hanging from a ceiling (1c). Among the zone spaces ( 3 ), the zone space to which an exhaust gas duct ( 4 ) is attached is constructed as an exhaust zone ( 3 a ).

US Patent Application for Rotary Hearth Furnace And …

3: The rotary hearth furnace according to claim 1, wherein the compartment-defining portion has a narrowing portion at an entrance to the compartment, and the narrowing portion reduces the cross section of a flow path through which exhaust gas flows into the compartment so that the cross section at the narrowing portion is smaller than the cross sections of the other portions of the flow path.

ITmk3: High-Quality Iron Nuggets Using a Rotary Hearth …

05-09-2020· Home » ITmk3: High-Quality Iron Nuggets Using a Rotary Hearth Furnace The industrial sector consumes 30% of all U.S. energy consumption, of which about half (1.5 quad) is consumed by iron and steel production.

Tenova Core Supplies Large Rotary Hearth Furnace at Mesabi ...

The furnace has a design capacity to produce 500,000 tons of iron nuggets annually using the innovative Kobe Steel ITmk3® process. The “doughnut” type rotary hearth furnace has an impressive diameter of approximately 68 meters, making it the largest diameter rotary hearth furnace that Tenova Core has ever supplied and one of the largest rotary

US5186741A - Direct reduction process in a rotary hearth ...

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 pellets ...

US4597564A - Rotary hearth - Google Patents

US4597564A US06/737,277 US73727785A US4597564A US 4597564 A US4597564 A US 4597564A US 73727785 A US73727785 A US 73727785A US 4597564 A US4597564 A US 4597564A Authority US United States Prior art keywords hearth rotary hearth alumina inner layer Prior art date 1985-05-23 Legal status (The legal status is an assumption and is not a legal conclusion.

Rotary Hearth Furnace Systems - Can-Eng English

CAN-ENG Rotary Hearth Furnaces have been utilized in a wide variety of applications for both Reheating and Heat Treating operations. System capacity ranges up to 60 metric tons/hr (130,000 lbs/hr) tph and consist of both rotary table and rotary ring designs. Unique loading systems for a wide range of products Hardening or heating for hot working Capacity up to 60 metric tons/hr (130,000 lbs/hr ...

Shenwu's new regenerative rotary hearth furnace direct ...

23-06-2018· New efficient and clean smelting technology with Rotary Hearth Furnace (RHF) for low-grade ferrous and non-ferrous ores. This technology relieves the situati...

Rotary Hearth Furnace - Surface Combustion

When you look to purchase anything in life, you always feel more comfortable when you go to the experts. Surface Combustion has more than 100 years of experience with thermal systems, The rotary hearth style of furnace allows for placement of large pieces or baskets of product onto a solid refractory or alloy hearth from which point they rotate like a lazy susan mechanism from the point of ...

rotary hearth furnace made in us - drukkerijrenekuijs.nl

Rotary Hearth Furnace In Vadodara,Rotary Hearth Furnace , Our Rotary Hearth Furnace is made in compliance with international quality standards using top quality materials Our clients can avail these furnaces from us at a reasonable price Our clients can avail these furnaces from us at a reasonable price Contact Supplier [24/7 Online]

rotary hearth furnace iron making - eftelworld.nl

Rotary Hearth Furnace (RHF) NIPPON STEEL CORPORATION / Kimitsu Works / No.3 Rotary Hearth Furnace / RHF. A rotary hearth furnace is a direct-reduction device that enables to recover valuable metals from dust produced during the steelmaking process, as …

Are Chinese Steel Mills Slowly Graduating to Rotary …

Moreover, the cost of landfill, especially in the developed countries, is prohibitively high. In this context, the breakthrough technology is recovering the zinc, iron and lead by using a Rotary Hearth Furnace (RHF). RHF technology uses pulverized coal as a reducing agent and coal gas as the fuel. Carbon-contained pellets, too, can be used.

multiple hearth furnace direct reduced iron

Joint Company Establishment for Steel Dust Recycling and Direct-reduced Iron Production and Usage 2008/10/02 Nippon Steel Corporation Kobe Steel, Ltd , (Investment will be primarily for a rotary hearth furnace-type reduction furnace and related equipment Capital investment will commence when the joint company receives approval to recycle .

Ferretti IS - rotary hearth furnace revamping - YouTube

09-10-2017· Rotary hearth furnace's refractory lining demolition and reconstruction.

Shenwu's new regenerative rotary hearth furnace direct ...

23-06-2018· New efficient and clean smelting technology with Rotary Hearth Furnace (RHF) for low-grade ferrous and non-ferrous ores. This technology relieves the situati...

Tenova Core Supplies Large Rotary Hearth Furnace at Mesabi ...

The furnace has a design capacity to produce 500,000 tons of iron nuggets annually using the innovative Kobe Steel ITmk3® process. The “doughnut” type rotary hearth furnace has an impressive diameter of approximately 68 meters, making it the largest diameter rotary hearth furnace that Tenova Core has ever supplied and one of the largest rotary

A new generation of rotary hearth furnace technology for ...

The rotary hearth furnace (RHF) allows the production of direct reduced iron out of various iron ores and other iron bearing materials (such as steel mill wastes).

FASTMET and FASTMELT Processes of Ironmaking – …

Kobe Steel in collaboration with Midrex Technologies, Inc., a subsidiary of Kobe Steel in the USA, ... The process uses a rotary hearth furnace (RHF) for the reduction reaction (Fig 1). The end product DRI can be hot briquetted (HBI), discharged as hot DRI into transfer containers, or cooled if …

(PDF) COMPARISON OF DIFFERENT COAL BASED DIRECT …

In 1995, Kobe Steel and Midrex began opera tion of a 2.5 t/h semi-commercial scale . ... technologies: the rotary hearth furnace for coal based direct reduction and the .