Abstract

A tuyere structure of a melting furnace includes: a tuyere main body which is covered on an outer periphery thereof with a ring member baked in advance, and is disposed in a hole portion provided in a tuyere brick; and a ramming material which fills a periphery of the ring member so as to fix the ring …

Legal parties

Party
Inventors (applicants): Yasunari Matsumura, Kohji Taoka
Assignees (initial): Nippon Steel & Sumitomo Metal Corporation (Tokyo, JP)
Agents: Kenyon & Kenyon LLP (attorney)

The application was examined by Scott Kastler (USPTO dept. 1733)

Claims

  • 1. A tuyere structure of a melting furnace comprising a tuyere brick having a hole …
  • 2. The tuyere structure according to claim 1 , wherein the ring member is baked …
  • 3. The tuyere structure according to claim 1 , wherein the ring member is divided …

International priority data

JP: 2007-233630 / Sep. 10, 2007 (national)

Cited documents

Patents

  • Henry et al. US 4387173 A / 524/63, Jun. 1, 1983
  • JP 9-176720, Jul. 1, 1997
  • Neville et al. US 4843044 A / 501/111, Jun. 1, 1989
  • RU 2 254 379, Jun. 1, 2005
  • Folgero et al. US 3971548 A / 266/218, Jul. 1, 1976
  • Fritz et al. US 4023781 A / 264/30, May. 1, 1977
  • JP 9-41024, Feb. 1, 1997
  • JP 2003-171706, Jun. 1, 2003
  • RU 2 244 019, Jan. 1, 2005
  • Winkelmann et al. US 4709905 A / 266/270, Dec. 1, 1987
  • JP 8-1310, Jan. 1, 1996
  • JP 1-316411, Dec. 1, 1989
  • Yamada US 5863490 A / 266/47, Jan. 1, 1999
  • SU 605549, Apr. 1, 1978
  • KR 10-0349870, Jan. 1, 2003
  • Brotzmann et al. US 3945820 A, Mar. 1, 1976
  • Tate et al. US 4749408 A / 75/10.41, Jun. 1, 1988
  • JP 2002-115011, Apr. 1, 2002

Drawings

Brief Description of the Drawings

FIG. 1 is a cross-sectional view showing an embodiment of a tuyere structure of a melting furnace of the present invention. FIG. 2A is a front view showing a ring …

Description

Technical Field

The present invention relates to a tuyere structure of a melting furnace which does not cause damage in the vicinity of a tuyere and has sufficient strength, thereby extending the life …

Description of Reference Numerals and Signs

1 TUYERE MAIN BODY 2 RING MEMBER 3 RAMMING MATERIAL 4 IRON SHELL …

Best Mode for Carrying Out the Invention

An embodiment of a tuyere structure of a melting furnace according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a cross-sectional view …

More details about Tuyere Structure of Melting Furnace

Miscellaneous patent data

The application was examined by Scott Kastler (1733 USPTO department), 5 figures depict the invention details, the exemplary patent drawings are Cross-sectional view showing the ring, Cross-sectional view showing an embodiment, Tuyere Structure of Melting Furnace, Front view showing a ring, the known agent's company is Kenyon & Kenyon LLP, the primary classification Having means preventing damage to introducing means, e.g., wear linings, cooling has been designated to the document, claims 1-5 comprise the invention scope, the invention description is illustrated by 4 drawings, the exemplary claims include number 1, the grant date is Jul. 9, 2013 (publication date), the assignee organization is Nippon Steel & Sumitomo Metal Corporation, located in Tokyo (JP), the application number is 12/733,516 (U.S.), particularly claims a tuyere structure of a melting furnace comprising a tuyere brick having a hole…, the known inventor's name is Taoka Kohji, the application publication date is Aug. 27, 2008, the grant publication number is 08480951, similar patents are classified under Preheating the combustion air, Iron hot-blast stoves, Blast furnaces, Having heat storage means, e.g., checkers, stroves, Induction stirring, Opening or sealing the tap holes, separating metal in a molten mass from undesired material, e.g., slag, in low shaft furnaces, Hood, Having Means for Leaching and Subsequently Precipitating a Metal, assigned to a foreign company or corporation, invented by Kohji Taoka et al., the invention is named Tuyere Structure of Melting Furnace, the published applicant's name is Kohji Taoka.

Invention classification information

The invention is classified under Tuyere operation, Tuyères, Having means preventing damage to introducing means, e.g., wear linings, cooling. The designated search classifications include Tuyere operation.

Patent details
Publication number 08480951
Publication date Jul. 9, 2013
Kind code B2
Application number 12/733,516
Application date Aug. 27, 2008
Application type U
Application series code 12
Int. pub. country WO
Int. pub. number WO2009/034837
Int. publication Mar. 19, 2009
Int. filing country WO
Int. filing PCT/JP2008/065275
Filed internationally Aug. 27, 2008
National stage date Mar. 5, 2010
National classification 266/270
Total number of claims 5
Exemplary claims 1
Number of drawings 4
Number of figures 5
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