LADLE PREHEATING DEVICE - NISSEI OVAL CO LTD

Title:

LADLE PREHEATING DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/019508

Kind Code:

A1

Abstract:

[Problem] To provide a ladle preheating device capable of preventing a sudden increase in local temperature of a ladle during preheating and capable of preventing occurrences of cracks or pinholes in a ladle during preheating. [Solution] A ladle preheating device (10A) comprises a hatch (23) that is removably disposed in a top opening of a ladle, a burner (24) that creates combustion gas, a combustion nozzle that has a nozzle that blows out combustion gas flames, and a heat radiating drum (27) that is removably inserted into an accommodating space in the ladle. The heat radiating drum (27) has a heat radiating circumferential wall (31) that extends from the hatch (23) toward the bottom wall of the ladle, a heat radiating bottom wall (32) that is located near the bottom of the ladle, a plurality of first discharge holes (33) that are formed in the heat radiating circumferential wall (31) and that discharge combustion exhaust gas at a prescribed temperature toward the circumferential wall of the ladle, and a plurality of second discharge holes (34) that are formed in the heat radiating bottom wall (32) and that discharge combustion exhaust gas at a prescribed temperature toward the bottom wall of the ladle.

Inventors:

TANIGUCHI KATSUYA (JP)
YU KESHEN (JP)
FUKUMARU SHIGERU (JP)
MURAYAMA YOSUKE (JP)

Application Number:

PCT/JP2013/077478

Publication Date:

February 12, 2015

Filing Date:

October 09, 2013

Export Citation:

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Assignee:

NISSEI OVAL CO LTD (JP)
ARIAKE CERAMICS CONSTRUCTION CO LTD (JP)

International Classes:

B22D41/01

Foreign References:

JPS60247463A	1985-12-07
JPS5219121A	1977-02-14
JP2004160523A	2004-06-10