【発明の名称】浸漬チューブ加熱型アルミ溶湯保温炉

Japanese Patent JP3325105

B2

PURPOSE:To obtain an immersion tube heating type heat insulating furnace, which reduces the cost of energy to be consumed, by bringing a combustion gas into contact with a combustion cylinder at a portion therein, which is immersed in molten aluminum, and alternately carrying out combustion by a pair of burners for a short period of time while feeding combustion air having a high temperature close to a temperature of a combustion exhaust gas. CONSTITUTION:Combustion is carried out alternately by a pair of burners 5, 6 to warm one of heat accumulation bodies 7 and the interior of one of combustion cylinders 3. The combustion cylinder 3 is heated from its bottom by a flame and radiant heat of a combustion gas. Molten aluminum warmed from the bottom of the combustion cylinder 3 is convected, agitated and uniformly heated. In this case, since combustion air to be fed to the burner 5 is fed into a burner body after it is preheated by direct contact with the heat accumulation body 7 for a short period of time, the combustion air has a high temperature close to a temperature of an exhaust gas. Accordingly, when the combustion air is mixed with fuel ejected from a fuel nozzle 15, it is stably burnt even in the case of a small amount of fuel, so that a combustion gas having a high temperature can be obtained.

Tomohiko Nishiyama
Kazuhisa Mitani
Ryoichi Tanaka
Hiroshi Hirota

JP33925193A

September 17, 2002

December 03, 1993

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TOYOTA JIDOSHA KABUSHIKI KAISHA
Nippon Furnace Industry Co., Ltd.
Fuso Heath Co., Ltd.

B22D45/00; C22B21/00; C22B21/06; F23L15/02; F27B3/20; F27B3/22; F27B14/14; F27D17/00; (IPC1-7): F27B3/22; B22D45/00; C22B21/06; F23L15/02; F27D17/00

JP1219412A
JP1222102A
JP1300104A
JP6323528A
JP6257951A
JP6265032A
JP120356B2

Kazumi Murase

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