| 摘要 |
PURPOSE:To permit the unloading of powdery body even when it is rainy by a method wherein a waterproof hatch cover is provided on the way of a vertical pipe extending from the unloader and crawler type carrier robots, supporting suction nozzles, are provided at the tip end of the vertical pipe. CONSTITUTION:A hatch entrance 31 at the upper part of a hatch 30 is covered by the waterproof hatch cover 2 and the vertical pipe 1, taken out of the unloading device 20, penetrates through the central part of the hatch entrance. The vertical pipe 1 is extended into the hatch 30 and the lower end thereof is branched by flexible hoses 3 while the suction nozzles 4 are attached to the tip ends of respective hoses. The waterproof hatch cover 2 is provided with venting covers 7 and is fixed to the entrance 31 by adhering it around the hatch entrance 31 with a plurality of magnets 6. Self-propelled crawler type carrier robots 5 are attached to the nozzles 4 at the tip ends of the flexible hoses 3 and the powder body 40 at the bottom of the hatch may be unloaded evenly. |
