| 摘要 |
<p>This invention relates to a system for concentrating particulates suspended in air. To remove particles from an airstream, it is common to use a bag filter. The bags are shaken to drop out the accumulated dirt. The shaking causes wear and failure of the bags. In textile manufacturing some fibers go astray at the processing machines and must be recovered by a collection system. It is necessary to have an exhaust system to collect such fibers and remove them from the knitting room. The present invention provides a particle recovery system for air conditioned rooms in which bag filters can be cleaned without a shutdown which would interrupt operations. The invention utilized a horizontal plenum through which air carrying particles is passed at a high velocity. A major part of the air entering the duct leaves it through bag filters along the top of the duct, which are joined to it by connections having an aggregate cross section much greater than the cross section of the duct, so that air rises into the bag filters slowly, and carries few particles. The cross-section of the duct is reduced along its length, so that the horizontal velocity is maintained to the outlet, where the remaining air carries the particulates through the outlet into a bin. Tandem operation, discharging into a duplicate system, perits a reduction in the proportion of exhaust air to total air used for entrainment.</p> |
