| 摘要 |
PROBLEM TO BE SOLVED: To recover dust falling in a hole in a water way by a simple facility in the water way for a water treatment facility such as a pump facility. SOLUTION: The hole 4 is formed in the upstream of a dust collector 10, a basket-shaped dust recovery vessel 6 capable of being housed in the hole in an extractable manner is installed, large dust increasing the load of the dust collector 10 is dropped, and the dust recovery vessel 6 is hung up by a chain block 8d or the like having a hook 8a at a front end and carried out from the water way. Accordingly, a sand pump or the like is not required, and a dust recovery device is economical and simple.
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