METHOD FOR COOLING A SPACE AROUND A SLEEVE SHAFT, DEVICE FOR GUIDING A FLUID ALONG AN OUTER SURFACE AREA OF A SLEEVE SHAFT, SLEEVE SHAFT COMPRISING SUCH A DEVICE, REFRACTORY TUBE WITH SUCH A SLEEVE SHAFT INSERTED AND SYSTEM COMPRISING SUCH A SLEEVE SHAFT AND/OR SUCH A REFRACTORY TUBE

摘要

The present invention relates to a method for cooling a space around a sleeve shaft, a device for guiding a fluid along an outer surface area of a sleeve shaft, a sleeve shaft including such a device, and a refractory tube with such a sleeve shaft inserted. The present invention also relates to a system including such a device, which system may also include such a sleeve shaft and such a refractory tube.