Title:
NON-IRON METAL MELTING AND HOLDING FURNACE
Document Type and Number:
Japanese Patent JP3338145
Kind Code:
B2
Abstract:
PURPOSE: To faciliate manufacturing, repairing and partial replacement, improve a thermal efficiency and reduce a difference in temperatures at an upper part and a lower part of a cylindrical furnace having a crucible by a method wherein the furnace is formed in such a way that it may be divided into a plurality of upper and lower segment stages, and means for heating the stored crucible is arranged.
CONSTITUTION: A base block 3 comprised of a side circumference 1 and a bottom plate 2 is applied as a crucible receiving part. The base block is made of refractory material. In turn, a metal mat 6 is arranged at an inner surface of a cylinder 4 made of refractory material through a mixture gas room 5. A surface combustion burner 8 provided with a mixture gas supplying port 7 opened at the mixture gas room 5 is arranged and mounted at the upper surface of a side circumference 1 through a seal member 9. An upper furnace member 13 made of refractory material is mounted at the upper part of the surface combustion burner 8 through a seal member 12. A discharged gas cylinder 11 opened into a space 10 above the bottom plate 2 is arranged. Then, a crucible 16 is installed on the upper surface of the bottom plate 2 through the block 15 and then a lid 18 hermetical closing the space 10 is arranged at the upper edge of the crucible through a seal member 17.
Inventors:
Kazufumi Watanabe
Yoshihisa Iseda
Akira Kinoshita
Hideo Yoshikawa
Yoshihisa Iseda
Akira Kinoshita
Hideo Yoshikawa
Application Number:
JP28162793A
Publication Date:
October 28, 2002
Filing Date:
October 14, 1993
Export Citation:
Assignee:
Tokyo Gas Co., Ltd.
Nitto Furnace Industry Co., Ltd.
Nitto Furnace Industry Co., Ltd.
International Classes:
F27B14/08; F27B14/14; (IPC1-7): F27B14/08; F27B14/14
Domestic Patent References:
| JP648743A | ||||
| JP519898U |
Attorney, Agent or Firm:
Shigetoshi Nishizawa