Method and arrangement for heating extended steel products
AssigneeAga AB
InventorsTomas Ekman, Mats Gartz
Life of this patent
Estimating the term…
Abstract
A method and apparatus for heating extended steel products, such as pipes, tape, or wire products or rods following working such as rolling or extrusion, to a heat treatment temperature, normally to approximately 50 to 900 degrees Celsius. The heating takes place as a result of the product being fed through a burner that has a central through channel into which the product is fed. Fuel and oxidant are supplied through channels that are outside of the central channel and are supplied at such a rate that the combustion of the fuel takes place in front of an outlet opening of the burner head of the burner.
Claims10
A method for heating extended steel products, such as pipes, tape, or wire products or rods following working, such as rolling or extrusion, to a heat treatment temperature of approximately 50 to 900 degrees Celsius, said method comprising the steps of:
- feeding the extended steel product through a burner that has a central through channel into which the extended steel product is fed;
- and supplying fuel and oxidant through respective fuel and oxidant channels that are outside of the central through channel and at such a rate that combustion takes place in front of an outlet opening of a burner head of the burner and heat is distributed around the periphery of the extended steel product.
An arrangement for heating extended steel products, such as pipes, tape, or wire products or rods following working, such as rolling or extrusion, to a heat treatment temperature of approximately 50 to 900 degrees Celsius, said heating arrangement comprising:
- a burner that has a central through channel arranged for the feed of the extended steel product through the burner;
- respective fuel and oxidant channels within the burner for the supply of fuel and oxidant, which fuel and oxidant channels are located outside of the central through channel;
- wherein the fuel and oxidant channels are positioned such that combustion takes place in front of an outlet opening of a burner head of the burner.
Dependencies are inferred from the claim text.