| 摘要 |
Flume water recycling apparatus operates in conjunction with a flume and a jackladder of a log handling system. Flume water with logs, loose bark, grit and sand flows down the flume toward the jackladder. The sand and some grit pass through a sand outlet into a collection pit beneath the end of the flume, whereas the logs, water, remaining grit and bark flow over a bridge toward the jackladder. Logs and large pieces of bark are removed from the water by a series of flights of the jackladder. Water, grit and small pieces of bark flow through tapered apertures provided in a tail section of the jackladder and into a grit settling trough. Slow water velocity in the trough promotes settling of the grit to the bottom of the trough. The return run of the flights extends along the bottom and scrapes the grit into the collection pit. The flights then extend around a tail pulley for advancement into a flight guide tunnel formed by the bridge and the tail section to prevent jamming of the flights. Bark and relatively clear water flow from the trough into side channels that extend to a second grit settling trough. Water and bark from the second trough flow into a bark basin where the bark is separated from the water and the water is returned to the flume.
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