GB1513274A - Tuyeres - Google Patents

Tuyeres

Info

Publication number
GB1513274A
GB1513274A GB3997075A GB3997075A GB1513274A GB 1513274 A GB1513274 A GB 1513274A GB 3997075 A GB3997075 A GB 3997075A GB 3997075 A GB3997075 A GB 3997075A GB 1513274 A GB1513274 A GB 1513274A
Authority
GB
United Kingdom
Prior art keywords
calorized
arrow
layer
external surfaces
jacket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3997075A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to GB3997075A priority Critical patent/GB1513274A/en
Publication of GB1513274A publication Critical patent/GB1513274A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/16—Tuyéres

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)

Abstract

1513274 Tuyeres SUMITOMO METAL INDUSTRIES Ltd 30 Sept 1975 39970/75 Heading F4B. The external surfaces 2 and 3 of the nozzle portion 1 of a liquid cooled copper blast furnace tuyere are provided with a calorized layer 4 formed by diffusing a powdery mixture of alumina and aluminium at a temperature of about 800‹ C. A similar calorized coating may also be provided on the internal surface (9) of the cooling jacket 8 (see Fig. 2, not shown). Blast gas is fed into the furnace through a nozzle 7, and cooling liquid enters the jacket 8 in the direction of arrow B and is discharged therefrom in the direction of arrow C. The thickness of the calorized layer is between 0À5 and 5 mm. on the external surfaces 2 and 3 and between 0À1 and 1 mm. on the inner surface of the cooling jacket.
GB3997075A 1975-09-30 1975-09-30 Tuyeres Expired GB1513274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3997075A GB1513274A (en) 1975-09-30 1975-09-30 Tuyeres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3997075A GB1513274A (en) 1975-09-30 1975-09-30 Tuyeres

Publications (1)

Publication Number Publication Date
GB1513274A true GB1513274A (en) 1978-06-07

Family

ID=10412494

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3997075A Expired GB1513274A (en) 1975-09-30 1975-09-30 Tuyeres

Country Status (1)

Country Link
GB (1) GB1513274A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171187A (en) * 1985-02-20 1986-08-20 Didier Werke Ag Sleeve for blowing solid material into molten steel
EP0592792A1 (en) * 1992-10-16 1994-04-20 MAN Gutehoffnungshütte Aktiengesellschaft Tuyere assembly for insertion in a blast furnace wall

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171187A (en) * 1985-02-20 1986-08-20 Didier Werke Ag Sleeve for blowing solid material into molten steel
FR2577451A1 (en) * 1985-02-20 1986-08-22 Didier Werke Ag SLEEVE FOR THE INFLUENATION OF SOLID SUBSTANCES IN A FUSED METAL BATH
EP0592792A1 (en) * 1992-10-16 1994-04-20 MAN Gutehoffnungshütte Aktiengesellschaft Tuyere assembly for insertion in a blast furnace wall

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee