Title:
BLOW NOZZLE OF SHAFT FURNACE
Document Type and Number:
Japanese Patent JPS6342310
Kind Code:
A
Abstract:
1. Tuyere for a blast pipe of a fusion/reduction furnace, particularly a blast furnace, provided with means for heating the blast comprising a plasma torch (8), which tuyere comprises an outer metal wall (1) equipped with means (10) for cooling by circulating a cooling fluid over its outer surface and an inner lining (2) in a hard refractory material, which tuyere consists of a cylindrical body (4), of a frustum of a cone (5) whose major diameter side is connected to the body, and of a nose (6) which is substantially cylindrical and connected to the minor diameter side of the frustum of a cone, the body (4), the cone (5) and the nose (6) being disposed one after the other and coaxially, which tuyere is characterized in that it comprises a layer of an insulating fibrous material (3) disposed between the outer metal wall (1) and the inner refractory (2).
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Inventors:
JIYAN RUI BAII
REMI MUNIE
REMI MUNIE
Application Number:
JP18210087A
Publication Date:
February 23, 1988
Filing Date:
July 21, 1987
Export Citation:
Assignee:
SIDERURGIE FSE INST RECH
International Classes:
C21B5/00; C21B7/00; C21B7/16; F27B1/16; (IPC1-7): C21B7/00; C21B7/16; F27B1/16
Attorney, Agent or Firm:
Takashi Koshiba