Abstract: A surface profile detection apparatus of a burden in a blast furnace includes a rotating plate mounted immediately above an opening part of the blast furnace and configured to rotate about an opening center of the opening part as a central axis, a rotating means for rotating the rotating plate, and a transmission and reception means for transmitting a detection wave such as a microwave or a millimeter wave in a linear shape along a diametrical direction of the rotating plate and receiving the detection wave. The surface profile detection apparatus performs transmission and reception in a direction orthogonal to a rotating direction of the rotating plate while rotating the rotating plate in synchronization with turning of the shooter so that transmission of the detection wave is not interrupted.

Abstract: Provided is a surface profile detection apparatus of a burden in a blast furnace having a simple apparatus configuration and capable of detecting a deposited state of the burden while a shooter is turning and enabling an operation close to a theoretical deposition profile. The surface profile detection apparatus of a burden in a blast furnace includes a rotating plate mounted immediately above an opening part of the blast furnace and configured to rotate about an opening center of the opening part as a central axis, a rotating means for rotating the rotating plate, and a transmission and reception means for transmitting a detection wave such as a microwave or a millimeter wave in a linear shape along a diametrical direction of the rotating plate and receiving the detection wave.

Abstract: A surface detection apparatus for a blast furnace is provided. An antenna is fixed to a side of a container attached to an opening portion of the blast furnace and having a bottom surface opened in correspondence to the opening portion. A reflection plate is disposed in the container immediately above the opening portion so as to face the opening portion and the antenna. A tilt angle varying mechanism and a rotation mechanism for the reflection plate are configured as a double pipe structure and are provided at an anti-antenna side of the reflection plate.

Abstract: A detection wave from a transmitting/receiving means is guided to the interior of a blast furnace via an antenna and a reflecting plate, and when a reflected wave from the surface of a loaded material is reflected by the reflecting plate and received by the transmitting/receiving means, the reflecting plate is rotated together with the antenna, or the reflecting plate is rotated additionally, and the surface profile of the loaded material is measured by scanning the surface of the loaded material in a linear manner or a planar manner during the turning of a chute or for each prescribed turn of the chute. A deposition profile is obtained on the basis of this surface profile and is compared to a predetermined theoretical deposition profile, and the chute is controlled so as to correct the error with respect to the theoretical deposition profile and then which new loaded material is introduced.

Abstract: A surface detection apparatus for a blast furnace is provided. An antenna is fixed to a side of a container attached to an opening portion of the blast furnace and having a bottom surface opened in correspondence to the opening portion. A reflection plate is disposed in the container immediately above the opening portion so as to face the opening portion and the antenna. A tilt angle varying mechanism and a rotation mechanism for the reflection plate are configured as a double pipe structure and are provided at an anti-antenna side of the reflection plate.