摘要:
The nozzle of the invention comprises a hollow tubular enclosure (1) in which is provided a hollow tubular chamber (10) coaxial with the enclosure and extending from the yoke (7) to the vicinity of the snout (5) thereof; the chamber (10) is connected through the yoke to a supply network (14) and at its circular front end it is provided with tangential orifices (15) for tangential injection of the cooling liquid on the internal surface of the snout.
摘要:
The invention relates to heat exchange devices for cooling the wall and the refractory of a blast-furnace. Such a device comprises a body shaped substantially as a body of revolution and having first and second end walls and a curved wall extending therebetween, the first end wall being a heat-transfer wall, a supply port and a discharge port for heat-transfer fluid, the ports being spaced-apart radially, the supply port being adapted for tangentially supplying the heat-transfer fluid into the body and the discharge port being adapted for tangentially discharging the heat-transfer fluid from the body, so that, in use, the fluid flows between the ports in a spiral path over the inner surface of the first end wall, the body having no internal obstacle to such flow. (FIG. 1)
摘要:
The invention concerns heat exchange devices for cooling the wall and the refractory of a blast furnace. Such a device, constituting a cooling box, comprises:a closed enclosure, elongated and having a shape of revolution or substantially of revolution, this enclosure comprising an outer end and an inner end,an axial chamber defining with said enclosure an annular chamber, this axial chamber comprising an outer end and an inner end,a supply orifice for feeding a cooling liquid into the axial chamber through its outer end.and a discharge orifice for discharging the cooling liquid from the annular chamber through the outer end of the enclosed enclosuredeflector means provided between the inner end of the axial chamber and the inner end of the enclosed enclosure, these deflector means being arranged so as to impart to the whole of the flow of the cooling liquid:an axial component, directed towards the inner end of the enclosed enclosure, for cooling the central part of the inner end of this enclosure,a radial component for cooling the rest of the inner end of the enclosed enclosure,an axial component directed towards the outer end of the closed enclosure for causing the return of the cooling liquid,and a tangential component for cooling the part of revolution of the closed enclosure.