SURFACE PROFILE DETECTION DEVICE OF OBJECT CHARGED INTO BLAST FURNACE

To provide a surface profile detection device of an object charged into a blast furnace, capable of detecting the surface profile of an entire surface of a charged object, by securing a scanning region over the entire face of the charged object, irrespective of an installation state of the detection device.SOLUTION: A detection device 100 detects the surface profile of a charged object by transmitting a detection wave M toward a surface of a charged object accumulated in a furnace through an opening 2 of a blast furnace 1 provided with the charged object, and by receiving the detection wave M reflected on the surface of the charged object. The device comprises a rotary disk 120 rotating in parallel with the opening 2, an angle variable reflection plate 140 and an angle-fixed reflection plate 138 fitted to the rotation plate 120, an antenna 135 transmitting the detection wave M to the angle-fixed reflection plate 138, and a casing 170 surrounding the detection device 100. At least a part of the angle variable reflection plate 140 is installed at a position entering the opening 2 of the blast furnace 1, and a part of a bottom face side of the casing 170 is provided projecting in the blast furnace 1.SELECTED DRAWING: Figure 2 【課題】検出装置の設置状況によらず、装入物全面にわたる走査領域を確保して、装入物の全面の表面プロフィールを検出することが可能な高炉内装入物の表面プロフィール検出装置を提供する。【解決手段】装入物が供給される高炉１の開口部２を通じて、炉内に堆積している装入物の表面に向けて検出Ｍを送信し、装入物の表面で反射された検出波Ｍを受信して装入物の表面プロフィールを検出する検出装置１００は、開口部２と平行に回転する回転板１２０と、回転板１２０に取り付けられる角度可変反射板１４０及び角度固定反射板１３８と、角度固定反射板１３８に検出波Ｍを送信するアンテナ１３５と、検出装置１００を包囲するケーシング１７０と、を備えることともに、角度可変反射板１４０の少なくとも一部を、高炉１の開口部２に侵入する位置に設置するとともに、ケーシング１７０の底面側の一部が高炉１の炉内に突出して設置されている。【選択図】図２