Device and method for sensing a conveying rate of a liquid material

A method for sensing a conveyance rate of a liquid material (2) in form of pig iron, at which the liquid material (2) is filled into a metallurgical target vessel (6) from a pivotable starting vessel (4), characterized by the steps of:

• (i) determining an amount of liquid material (2) contained in the starting vessel (4), and
• (ii) sensing the amount of liquid material (2) which is discharged toward the target vessel (6) by pivoting of the starting vessel (4),
• characterized
• in that, between the starting vessel (4) and the target vessel (6), a feed chute (12) is arranged, so that, when the starting vessel (4) is pivoted in the direction of the target vessel (6), the liquid material (2) exits from the starting vessel (4) first into the feed chute (12) and subsequently reaches the target vessel (6) from the feed chute (12), wherein the feed chute (12) is formed of a fireproof material,
• in that, in step (ii), a filling height to which the feed chute (12) is filled with the liquid material (2), is determined when the starting vessel (4) is tilted in the direction of the target vessel (6) and in the process the liquid material (2) exits from the starting vessel (4) into the feed chute (12), and
• in that, in the fireproof material (FF) of the feed chute (12) which adjoins an inner circumferential surface of the feed chute (12), at least one measuring loop (32) is provided, wherein a filling height (16) of the liquid material (2) is determined within the feed chute (12) by the at least one measuring loop (32), wherein in the at least one measuring loop (32), electrical fields are induced by interaction with the pig iron.

A method for setting a predetermined conveying rate at which a liquid material in form of pig iron is filled into a metallurgical starting vessel (6) from a starting vessel (4),

• characterized by the steps of:
• (i) determining an amount of liquid material (2) contained in the starting vessel (4), and
• (ii) sensing the amount of liquid material (2) which is discharged toward the target vessel (6) by pivoting of the starting vessel (4),
• characterized
• in that, between the starting vessel (4) and the target vessel (6), a feed chute (12) is arranged, so that, when the starting vessel (4) is pivoted in the direction of the target vessel (6), the liquid material (2) exits from the starting vessel (4) first into the feed chute (12) and subsequently reaches the target vessel (6) from the feed chute (12), wherein the feed chute (12) is formed of fireproof material,
• in that, in step (ii), a filling height to which the feed chute (12) is filled with the liquid material (2), is determined when the starting vessel (4) is tilted in the direction of the target vessel (6) and in the process the liquid material (2) exits from the starting vessel (4) into the feed chute (12),
• in that, in the material (FF) of the feed chute (12) which adjoins an inner circumferential surface of the feed chute (12), at least one measuring loop (32) is provided, wherein a filling height (16) of the liquid material (2) is determined within the feed chute (12) by the measuring loop (32), wherein in the at least one measuring loop (32), electrical fields are inducted by interaction with the pig iron, and
• in that in order to sense the conveying rate, a tilting speed for the starting vessel (4) in the step (ii) is regulated in such a manner that the predetermined conveying rate for liquid material (2) is set, and the liquid material is filled into the target vessel (6) at the set predetermined rate.