DEVICE FOR CUTTING CONTINUOUSLY CAST SLAB AND METHOD FOR PREVENTING CLOGGING OF NOZZLE IN CUTTING DEVICE FOR CONTINUOUSLY CAST SLAB

摘要

PROBLEM TO BE SOLVED: To provide a method for preventing the clogging of a nozzle in a device for cutting a continuously cast slab and the device for cutting the continuously cast slab while preventing the clogging of the nozzle.;SOLUTION: When the cast slab is gas-cut by using the device for cutting the continuously cast slab, having a torch and the nozzle for spraying high pressure water to slag spattered at the gas-cutting time of the cast slab with the torch and further, disposing an automatic shut-off valve in piping for supplying the high pressure water into the nozzle and a flow-rate adjusting valve in parallel to the automatic shut-off valve, the high pressure water is sprayed from the nozzle and in the other case of non-gas-cutting the cast slab, fewer amount of cooling water in comparison with the gas-cutting time, is continued to spray from the nozzle to prevent the clogging of the nozzle.;COPYRIGHT: (C)2004,JPO