Claims
- 1. A method of applying a refractory lining to an inner surface of a vessel of a steelmaking converter, comprising the steps of:
- (a) providing the vessel with a trunnion ring encircling and supporting the vessel coaxially by radial and axial support rollers uniformly distributed substantially throughout the circumference of the trunnion ring, in such a manner as to enable the vessel to rotate about its centerline axis relative to the trunnion ring, which is rotatably supported about a stationary axis transverse to the centerline axis;
- (b) providing a flowable refractory material within the vessel;
- (c) rotating the vessel at least about its centerline axis to such an angular position that a specific worn lining region will be covered by the refractory material; and
- (d) causing the vessel to oscillate rotatingly through an angle about its centerline axis in two opposite directions with respect to said angular position.
- 2. The method of applying a refractory lining as claimed in claim 1, including the step of pouring produced steel out of the vessel with slag left therein, upon completion of a refining operation in the vessel, thereby to provide flowable refractory material in the vessel.
- 3. The method of applying a refractory lining as claimed in claim 2, including the step of adding magnesia to the slag in excess of its saturation limit when the refining operation is carried out.
- 4. The method of applying a refractory lining as claimed in claim 1, including the step of oscillating said vessel at an angle of more than 90 degrees in each of the opposite directions.
- 5. The method of applying a refractory lining as claimed in claim 1, including the steps of discharging produced steel and slag from the vessel upon completion of a refining operation in the vessel and then supplying into the vessel an amount of a high magnesia-content refractory material in fluid form, containing dolomite.
- 6. The method of applying a refractory lining as claimed in claim 1, including the steps of discharging produced steel and slag from the vessel upon completion of a refining operation in the vessel, then supplying into the vessel a powdered, high magnesia-content refractory material and a heat generating material, and thereafter blowing oxygen to these materials thereby causing the heat generating material to generate heat and to melt the refractory material.
- 7. The method of applying a refractory lining as claimed in claim 6, wherein the heat generating material is coke.
- 8. The method of applying a refractory lining as claimed in claim 1, including the steps of discharging produced steel and slag from the vessel upon completion of a refining operation in the vessel, then supplying a powdered, high magnesia-content refractory material into the vessel, and thereafter heating and melting the refractory material by means of a burner lance.
- 9. A method of applying a refractory lining to an inner surface of a vessel of a steelmaking converter, comprising the steps of:
- (a) providing the vessel with a trunnion ring encircling and supporting the vessel coaxially by radial and axial support rollers uniformly distributed substantially throughout the circumference of the trunnion ring in such a manner as to enable the vessel to rotate about its centerline axis relative to the trunnion ring, which is rotatably supported about a stationary axis transverse to the centerline axis;
- (b) rotating the vessel at least about its centerline axis to an angular position sufficient to cause a desired area on an inner surface of the vessel to face substantially upward; and
- (c) spraying a pulverized refractory material to the desired area substantially from above.
Priority Claims (1)
Number |
Date |
Country |
Kind |
53-163691 |
Dec 1978 |
JPX |
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Parent Case Info
This is a division of application Ser. No. 103,619 filed Dec. 14, 1979 now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
2930688 |
Kalling |
Mar 1960 |
|
4270949 |
Esposito |
Jun 1981 |
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Divisions (1)
|
Number |
Date |
Country |
Parent |
103619 |
Dec 1979 |
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