HORN provides a full service package to repair the furnace during operation and to ensure a long furnace lifespan, e.g. by thermal regenerator cleaning and flux line paving.
Regenerator cleaning is one of the methods to improve the efficiency of the regenerator by removing condensates from the checker system.
Thermal regenerator cleaning entails heating instruments being installed in the regenerator beneath the rider arches and raising the temperature of the regenerator to such a degree that the condensation melts and flows down the shafts to the regenerator basement. Since the control and operation of the instruments call for a great deal of experience as well as state-of-the-art technical equipment, customers are well advised to consult specialists such as the HORN staff.
Further special tools are available to execute hot refractory repair works during furnace operation. For clear cuts in refractory material a diamond saw is available in order to replace damaged refractory material without vibrations and without affecting adjacent material. The diamond saw is hydraulically driven and water-cooled. With the diamond saw, openings up to 580 mm deep may also be sawn into high-strength materials. The ambient temperature during operation may be up to 200° C while the temperature on the inner side of the wall may be up to 1600° C.
The diamond saw is used for repair of rat holes, removal of washouts in regenerator walls, placing of openings for cleaning, inspection, placement of dampers or connections.