| 摘要 |
<p>Looms for weaving fabrics produce large amounts of dust. This has usually been inefficiently extracted by intermittently disturbing accumulated dust by blowing and promptly collecting it by suction, using equipment involving travelling parts. Simplified yet improved dust extraction equipment comprises a plurality of elongated suction manifolds 88, 90, 92 strategically disposed adjacent to the principal dust-generating zones of a loom, ducting 98 communicating with the manifolds, a filter cabinet 106 separate from the loom, and a motorised suction fan 100, 102 drawing dust-contaminated air from the manifolds by way of the ducting and delivering it to the cabinet. Flow-regulating valves in the ducting 98 are set at the time of installation to provide optimum suction at each of the manifolds. The main dust-generating zone is below the shed, but the warp stop motion mechanism 80 also generates considerable dust and accordingly the manifold 88 disposed below the shed has a tray 94 extending laterally beneath the mechanism 80, air being supplied to a suitably slotted or apertured tube 96 at the edge of the tray under a pressure sufficient merely to fluidise the dust which settles on the tray so as to convey it continuously to the manifold 88. <IMAGE></p> |
