| 摘要 |
<p>The dust collector is for removing dust from a gas. The contaminated gas is drawn into a filter chamber (8) where it passes through hollow, flat, box-like, cloth covered filter members (7) and into gas passages (9 min ). Dust is separated from the gas by the filter members and at least some of this dust builds up on the outer surfaces of the filter members thereby gradually reducing their efficiency. To dislodge this built up dust compressed air is introduced into the filter members through outlets (11) thereof from compressed air outlets (12) disposed in the gas passages. In order to make this possible with a small capacity compressor, an outlet (14) in the gas passage is closed and an atmospheric air inlet (15) in the gas passage is opened by a piston and cylinder unit (16, 17) which operates respective valves (18, 19) when the compressed air is introduced into associated filter members. Only those filter members associated with one of the gas passages are cleaned at a time so that the collector can continue with its dust removal operation during this cleaning process. </p> |
