Patent ID: 9206487
Filing Date: 2015-12-08
Classification: C21C,F27D

Abstract:
1. A treatment lance, including: a refractory having a first end with an opening therein, a second end with an opening therein, a first channel having a first end extending from the opening in the first end of the refractory to a second end located between the first end of the refractory and the second end of the refractory and a second channel having a first end extending from the second end of the first channel to the opening in the second end of the refractory, the second channel having a cross-sectional area smaller than the cross-sectional area of the first channel; a first tubular member located at least partially within the first channel of the refractory, the first tubular member having a first open end positioned outside the refractory and a side wall extending from the first open end to a second open end adjacent the second end of the first channel in the refractory, the side wall of the first tubular member defining a channel and having an inner surface and an outer surface; and a second tubular member having a first end and a side wall extending from the first end of the second tubular member to a second closed end of the second tubular member located between the first end of the refractory and the second end of the first tubular member, the side wall of the second tubular member defining a channel and having an inner surface and an outer surface, the second tubular member positioned at least partially within the channel of the first tubular member so as to form a space between the inner surface of the side wall of the first tubular member and the outer surface of the side wall of the second tubular member, and at least one opening extending through the side wall of the second tubular member to create a flow path from the channel of the second tubular member to the space between the inner surface of the side wall of the first tubular member and the outer surface of the side wall of the second tubular member.