DEVICE FOR HYDRODYNAMIC DUST DISPERSAL IN ATMOSPHERE Russian patent published in 1994 - IPC

FIELD: dust dispersion equipment. SUBSTANCE: device has an air pit mounted in the center of a building roof, the pit has a nozzle at the end. The nozzle perimeter smoothly passes into an inner screen. An outer solid screen is mounted in a spaced relation to the inner screen. The screens are axis-symmetrical with the surface which vertical cross section repeats in all directions from the pit a flat fragment of the upper part of Zhukovskiy's profile. The screen edges are smoothly bent upward, and the inner screen has additional edges bent down. The clearance between the screens is parted by solid vertical partitions into eight sectors. The sectors have equal angle at the base. Sprayers are mounted on the axle of each sector under the outer screen vertically down. A sprayed liquid feed manifold is connected to feed lines of each sector. Shutoff cocks electrically connected to a corresponding photoelectric transducer are mounted at the inlet of each feed line. The transducers are mounted in the most narrow section of each sector near the pit. EFFECT: improved structure. 2 cl, 3 dwg, 1 tbl