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Patent Searching and Data


Title:
HEATING FURNACE
Document Type and Number:
Japanese Patent JPH11302733
Kind Code:
A
Abstract:

To suppress the formation of oxide scale and to reduce fuel consumption by lessening the contact of a body to be heated, such as slab or billet, and combustion gas at the time of heating the body to be heated.

This heating furnace 1 has a furnace body 2 which internally has a combustion chamber 3 and is provided with skid rails 9 for supporting the moving body 8 to be heated on a bottom 2a and a pusher 22 for pushing the body 8 to be heated into the furnace body 2 by existing near the inlet 4 for the material to be heated of the furnace body 2. The wall surface 2b of the furnace body 2 is provided with a buner 20 of the combustion chamber 3 and the wall surface 2c of the furnace body 2 is provided with an exhaust gas outlet 6 of the combustion chamber 3. A heat storage body supply pipe 11 onto which the granular heat storage bodies 10 flow down and which spray the heat storage bodies atop the body 8 to be heated is erected above the inlet 4 for the material to be heated of the furnace body 2. The exhaust gas outlet 6 and the heat storage body supply pipe 11 are connected. An exhaust gas discharge pipe 12a is connected above the juncture. The outlet 5 for the body to be heated of the furnace body 2 is suspendedly provided with a heat storage body discharge pipe 14 for discharging the heat storage bodies 10 which are placed on the body 8 to be heated and are moved thereto. An air supply pipe 17 is connected to the lower side of the heat storage body discharge pipe 14 and an air discharge pipe 19 is connected to the upper side thereof. The air discharge pipe 19 and the burner 20 are connected.


Inventors:
Narisawa, Michinori
Application Number:
JP1998000106827
Publication Date:
November 02, 1999
Filing Date:
April 17, 1998
Export Citation:
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Assignee:
ISHIKAWAJIMA HARIMA HEAVY IND CO LTD
International Classes:
C21D1/00; C21D1/52; C21D9/00; F27B9/24; F27D3/02; F27D17/00; (IPC1-7): C21D9/00; C21D1/00; C21D1/52; F27B9/24; F27D3/02; F27D17/00
Attorney, Agent or Firm:
島村 芳明