TUYERES

• US 3,601,384 A
• Filed: 05/09/1969
• Issued: 08/24/1971
• Est. Priority Date: 05/09/1969
• Status: Expired due to Term

• Current Assignee: Lewis H. Durdin
• Original Assignee: Lewis H. Durdin
• Inventors: Durdin, Lewis H.
• Primary Examiner(s): Meister, James M.
• Application Number:
  US04/823,403
• Time in Patent Office: 837 Days
• Field of Search: 29/504,474.3 266/41 110/182.5 122/6.6,6.7 165/169
• US Class Current: 122/6.6
• CPC Class Codes: C21B 7/16 Tuyéres

Abstract

Each of the disclosed tuyeres or other tubular members comprises inner and outer tubular elements, preferably in the form of copper castings, having mating cylindrical surfaces. A series of channels are formed in one of said tubular elements along one of said surfaces to provide fluid coolant passages between the tubular elements. The channels are preferably cast into the corresponding element. Connections are provided for fluid coolant conduits. Welded or soldered joints are provided between the elements.

Claims

1. A tuyere for a furnace or the like, including an inner member having a generally cylindrical nozzle passage extending axially therethrough, said inner member having an outer generally cylindrical joint surface, an outer member having an inner generally cylindrical joint surface received around and mating with said outer joint surface of said inner member, at least one of said members having a system of coolant channels formed into the cylindrical joint surface thereof, said channels forming coolant passageways between said members, at least one of said members being formed with entrance and exit ports connecting with said passageways, said outer member having a nose portion including an annular flange directed inwardly and formed with an annular rearwardly facing end surface, said inner member having a forwardly facing annular end surface mating with said rearwardly facing end surface, said flange forming a circular nozzle opening therein aligned with said nozzle passage, and a sealing joint material betwEen said inner and outer members to prevent leakage of the coolant from said passageways.

2. A tuyere according to claim 1, in which said rearwardly and forwardly facing end surfaces are frustoconically beveled.

3. A tuyere according to claim 1, in which said channels are formed in said outer member.

4. A tuyere according to claim 1, in which said channels are formed in said inner member.

5. A tuyere according to claim 1, in which said cylindrical joint surfaces are appreciably tapered.

6. A tuyere according to claim 1, in which said joint material is provided by weld material.

7. A tuyere according to claim 1, in which said joint material is provided by solder material.

8. A tuyere according to claim 1, in which said members are made of copper.

9. A tuyere according to claim 1, in which said outer member has an annular rear end surface, said inner member having a rear portion comprising an outwardly projecting annular flange having an annular front surface mating with said annular rear end surface.

10. A tuyere for a furnace or the like, including an inner member having a generally cylindrical nozzle passage extending axially therethrough, said inner member having an outer generally cylindrical joint surface, an outer member having an inner generally cylindrical joint surface received around and mating with said outer joint surface of said inner member, said outer member having a system of coolant channels formed into the cylindrical joint surface thereof, said channels forming coolant passageways between said members, said outer member being formed with entrance and exit ports connecting with said passageways, said outer member having a nose portion including an annular flange directed inwardly and formed with an annular frustoconical rearwardly facing end surface, said inner member having a forwardly facing annular frustoconical end surface mating with said rearwardly facing end surface, said flange forming a circular nozzle opening therein aligned with said nozzle passage, and a sealing joint material between said inner and outer members to prevent leakage of the coolant from said passageways.