Title: Process for controlling charging of shaft furnace
Application Number: 86103226 Application Date: 1986.05.09
Publication Number: 1004720 Publication Date: 1986.11.05
Approval Pub. Date: 1990.10.03 Granted Pub. Date: 1990.10.03
International Classifi-cation: C21B7/20;F27B1/20
Applicant(s) Name: Paul Wurth Address:
Inventor(s) Name: Gilbert Bernard
Attorney & Agent: XIN ZHESHENG
Abstract:
    A process for controlling the charging of a shaft furnace of the type utilizing a distribution spout and one or more storage hoppers with each hopper being provided with a dosing device for regulating the flow of charging material from the hopper to the spout. The shaft furnace also includes a weighing system to determine the contents (weight) of the hopper and to adjust the position of the dosing device wherein the dosing valve is opened whenever the real flow Qr is below the reference flow Qc and is held in position when the real flow Qr is above the reference flow Qc.
Time: 7