Patent EA-003002-B1 (EA)
Title: Method for the manufacture of a complete cooling element for the melt zone of a metallurgical reactor and a complete cooling element manufactured by said method
Inventor: KOJO ILKKA
IPC: F27D9/00
Filed: 2000-05-12
Abstract: 1. A method for manufacturing a composite cooling element for the melt zone of a metallurgical reactor, characterized in that the element is manufactured by attaching ceramic lining sections of the element to each other by copper casting and forming at the same time a copper plate equipped with cooling water channels behind the lining. 2. A method according to claim 1, characterized in that the ceramic lining sections are of refractory brick. 3. A method according to claim 1, characterized in that the cooling water channels are made by boring. 4. A method according to claim 1, characterized in that the inner surface of the cooling water channels are profiled. 5. A method according to claim 1, characterized in that the cooling water channels are furnished with inner pipes. 6. A method according to claim 1, characterized in that the cooling water channels of the element are at a distance from each other of 0.5 - 1.5 times the diameter of the channel. 7. A method according to claim 1, characterized in that the amount of copper in the surface section of the cooling element is maximum 30%. 8. A method according to claim 1, characterized in that the copper joints between the ceramic bricks in the surface section of the cooling element are 0.5 - 2 centimetres thick. 9. A method according to claim 1, characterized in that the copper used in the element is copper with an electrical conductivity of at least 85% IACS. 10. A method according to claim 1, characterized in that the ceramic lining sections of the cooling element are placed in a framework made of steel, after which the framework and the ceramic lining sections are joined to each other using copper casting, whereby the framework forms the joint of the element surface and copper forms the inner joints and the copper plate behind the lining. 11.A method according to claim 10, characterized in that the thickness of the framework made of fireproof steel is 1 - 3 cm. 12.A method according to claim 10, characterized in that the framework is formed with fins parallel to the cast copper. 13.A composite cooling element for the melt zone of a metallurgical reactor, characterized in that the ceramic lining sections of the element are attached to each other and to the copper plate furnished with cooling water pipes behind the lining by copper casting. 14.A cooling element according to claim 13, characterized in that the ceramic lining sections are made of refractory bricks. 15.A cooling element according to claim 13, characterized in that the cooling water channels of the element are at a distance from each other of 0.5 - 1.5 times the diameter of the channel. 16.A cooling element according to claim 13, characterized in that the cooling water channels are made by boring. 17.A cooling element according to claim 13, characterized in that the inner surface of the cooling water channels is profiled. 18.A cooling element according to claim 13, characterized in that the cooling water channels are furnished with inner pipes. 19.A cooling element according to claim 13, characterized in that the amount of copper in the surface section of the cooling element is maximum 30%. 20.A cooling element according to claim 13, characterized in that the copper joints between the ceramic bricks in the surface section of the cooling element are 0.5 - 2 centimetres thick. 21. A cooling element according to claim 13, characterized in that the copper used in the element is copper with an electrical conductivity of at least 85% IACS. 22. A cooling element according to claim 13, characterized in that the jointing material binding the cooling element ceramic lining sections is composed of steel in the surface section of the element, and behind this the jointing material is of cast copper, which also forms a copper plate behind the lining during casting. 23. A cooling element according to claim 22, characterized in that the thickness of the surface section of the jointing made of fireproof steel is 1 - 3 cm. 24.A cooling element according to claim 22, characterized in that the fireproof steel surface coming into contact with copper is worked into fins.