公开(公告)号：US20180038650A1

公开(公告)日：2018-02-08

申请号：US15551526

申请日：2016-02-16

Applicant: Technological Resources Pty. Limited

Inventor： Mark Hayton ,  Rodney James Dry ,  Jacques Pilote

IPC: F27D25/00 ,  B08B9/032 ,  C21C5/46 ,  B08B9/045 ,  F27B3/18 ,  F27D3/18

Abstract: A method of removing a blockage in a solids injection lance under normal operating conditions of a direct smelting vessel is disclosed. The direct smelting vessel contains a bath of molten metal and slag and the solids injection lance extends into the direct smelting vessel and has an outlet end that is submerged in the molten slag. The solids injection lance further has a single inlet coupled to a section of supply line that conveys gas and solid feed material to the solids injection lance. The method comprises (a) advancing a blockage-removing tool through the supply line section and through the solids injection lance to an upstream side of the blockage, (b) operating the tool under elevated gas pressure conditions to remove the blockage such that solid feed material and gas are able to flow through the solids injection lance. The method further comprises (c) retracting the tool from the solids injection lance and the supply line section. Also disclosed is an apparatus for removing a blockage in a solids injection lance extending into a direct smelting vessel.

公开(公告)号：US20180112917A1

公开(公告)日：2018-04-26

申请号：US15566251

申请日：2016-04-14

Applicant: Technological Resources Pty. Limited

Inventor： Jacques Pilote ,  Mark Hayton

IPC: F27D3/15 ,  C21B3/04

CPC classification number: F27D3/1554 ,  C21B3/04 ,  F27D1/12 ,  F27D3/1545 ,  F27D2009/0067

Abstract: A slag notch for a metallurgical vessel includes a steel member defines a passageway for molten slag and a system for cooling the steel member.