METHOD AND APPARATUS FOR PRODUCING REDUCED IRON PELLET

Title:

METHOD AND APPARATUS FOR PRODUCING REDUCED IRON PELLET

Document Type and Number:

Japanese Patent JP3396434

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a method and apparatus for producing a reduced iron pellet by which the reduced iron pellet hardly being crushed in a blast furnace because of high density and suitable as iron raw material for charging into the blast furnace cna be produced.
SOLUTION: In this method, before cooling the high-temp. reduced iron pellet P2 heat-treated at high temp., the high-temp. reduced iron pellet P2 is rollingly moved in the temp. range of 800-1,200°C. Therefor, this apparatus is provided with a heat insulation rolling part 22a for receiving the high-temp. reduced iron pellet P2 and rollingly moving the pellet P2 while holding the temp. between a rotary hearth type reducing furnace 21 and a rotary cylindrical cooler 22.

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Inventors:

Susumu Kamikawa
Hisao Teramoto
Shigeo Itano

Application Number:

JP27220398A

Publication Date:

April 14, 2003

Filing Date:

September 25, 1998

Export Citation:

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Assignee:

MITSUBISHI HEAVY INDUSTRIES,LTD.

International Classes:

C22B1/16; C21B13/08; F27D15/02; C21B; C21C; (IPC1-7): C22B1/16; C21B13/08

Domestic Patent References:

JP4910109A
JP361339A

Attorney, Agent or Firm:

Koharu Fujita (3 outside)

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