PROCESS AND DEVICE FOR CLOSING A TAP HOLE,申请号CA19962237174-传众专利搜索

PROCESS AND DEVICE FOR CLOSING A TAP HOLE

申请公布号：CA2237174(A1)

申请号：CA19962237174

申请日期：1996.11.04

申请公布日期：1997.05.22

申请人：

MANNESMANN AKTIENGESELLSCHAFT

发明人：FUCHS, REINHARD;HOFMANN, WERNER

分类号：B22D41/14;B22D41/46;(IPC1-7):C21B7/12

主分类号：B22D41/14

摘要：A process for closing a tap hole in a metallurgical vessel at least partially filled with a metal melt includes bringing a compressible fire-resistant material to the mouth of a tubular closing element, providing a medium that substantially prevents contact between the fire resistant material and the metal melt, passing the closing element through the melt toward the bottom of the vessel, compressing the compressible material against the bottom of the vessel to form a seal between the outside of the closing element and the tap hole below the closing element, and moving a cut off device over the outside of the tap hole, thereby allowing the tap hole to be filled with a pourable refractory compound via the tubular closing element. A device for performing the process for closing a tap hole includes a tubular closing device with a groove at an end facing the bottom of the metallurgical vessel. The open end of the groove also faces the bottom of the vessel and a closed end of the groove includes a compressible material. The sides of the groove are deflectable such that when the closing device is lowered onto the bottom of the vessel, the compressible material contacts the bottom of the vessel forming a seal.