| 摘要 |
A water cooling dart lance is provided to prevent thermal deformation of a traveling lance and block an inclusion in a furnace by circulating a coolant from a first lance body to a second lance body, using a coolant supply pipe and a coolant discharging pipe. A water cooling dart lance(1) comprises a lance body, and a traveling lance(50). The traveling lance includes a first lance body in which a coolant is flowed, and a second lance body(54) surrounding the first lance body and guiding the coolant to the outside. The traveling lance is connected with a dart clamp(30) for injecting a converter of a dart(100). A third lance body is installed in the first lance body. A power transfer shaft of the dart clamp passes through the third lance body. A rear end of the lance body is connected with a rotary block(18) which is rotated by a rotary shaft(16). The lance body is connected with a wire actuator(20). The traveling lance is connected with a movable pulley(17) which is moved along the lance body. The first lance body is connected with a coolant supply pipe. The second lance body is connected with a coolant discharging pipe(58). |
