Ventilation system with dust collector - has static electrical filter grids with dust disposal by water spray

摘要

A ventilation cap (18) is fitted with direction vanes (19,20). Air flows through dust collector grids (21). Ionisation screens (22) are installed, upstream of the collector grids to produce a static charged on the grids. Atomised water sprays (23) are installed upstream of the static screens (22). Dust and water are attracted to the collector grids. The resulting sludge drops into a collection gutter (25) for disposal. By control of the water spray system the air temp. through the ventilation cap is affected, giving a measure of control over the ventilation rate.