Method of protecting tuyeres for upwardly blowing pure oxygen th

Details Method of protecting tuyeres for upwardly blowing pure oxygen th Method of protecting tuyeres for upwardly blowing pure oxygen th

1977-04-12

1978-03-28

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 51, 75 59, 75 60, C21C 534

Patent

active

040812685

ABSTRACT:
In use of a steel converter into which oxygen is blown through tuyeres, each tuyere being protected by flow of a protective liquid containing hydrocarbons along peripheral passage means in the tuyere, the tuyeres are protected against wear by dividing the refining process into at least two stages, in the first stage which extends from the beginning of the refining process to a point at which the carbon level in the molten metal is 0.300 to 0.700% the protective liquid flows at a first rate and in the second stage which extends from the end of the first stage to a point at which at least 90% of the total amount of oxygen has been blown in, the protective liquid flows at a second rate in the range 0.08 to 0.15 liters per minute per centimeter of the mean circumference of the passage means in each tuyere, the first rate being in the range 0.4 to 0.6 times the second rate.

REFERENCES:
patent: 3706549 (1972-12-01), Knuppel
patent: 3751242 (1972-08-01), Knuppel
patent: 3992194 (1976-11-01), Leroy et al.

Affiliated with

Also associated with

Rating

Method of protecting tuyeres for upwardly blowing pure oxygen th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of protecting tuyeres for upwardly blowing pure oxygen th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of protecting tuyeres for upwardly blowing pure oxygen th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-640755