| 摘要 |
A vertical gunning conduit(22) having a horizontal nozzle(26) at its lower end is supported from an upper hoist and extends into the open top of a refractory-lined vessel, such as an electric steel making furnace, with the nozzle positioned within the vessel. Refractory materials and water are supplied on the top of the conduit through a mixing head, which is connected by a swivel coupling to the lower position of the conduit which is rotatable about ist axis. An oscillating drive is connected to the rotatable conduit through a magnetic cluch which is actuable to engage at a variable angle to control the position of the nozzle.
|
