| 摘要 |
PROBLEM TO BE SOLVED: To particularly provide a vacuum filtering device for adding a suction pipe to an outer peripheral part of a drum, regarding a rotary cylindrical vacuum filtering device of using a laminate filter.SOLUTION: A vacuum filtering device is provided for performing solid-liquid separation by winding a filter on a rotatably disposed drum, and is provided with: a support plate arranged on both-end part peripheral surfaces of the drum; the filter wound on a plurality of partition plates extended between the support plates to form a plurality of filter chambers; a peripheral surface suction pipe having a suction hole, the peripheral surface suction pipe being added to the filter chambers; and a side suction pipe whose one end is communicated with the peripheral surface suction pipe and whose another end is communicated with a rotary valve provided to the shaft, the side suction pipe being disposed at the outside of a side plate of the drum. Since the suction pipe is not installed inside the drum, maintenance on the suction pipe is facilitated. |
