| 摘要 |
<p>A furnace wall observation device for observing the surfaces of the opposed furnace walls of a coke oven carbonizing chamber and a furnace wall shape measuring device for measuring the shape of the surfaces of the furnace walls, wherein a light beam radiation device and an imaging device are stored in an insulated container, a mirror surface is disposed on the outside of the insulated container, and the images of the surfaces of the furnace walls reflected in the mirror surface are imaged by the imaging device.</p> |
