Apparatus for spraying liquids such as resins and waxes on surfa

Details Apparatus for spraying liquids such as resins and waxes on surfa Apparatus for spraying liquids such as resins and waxes on surfa

1980-11-18

1984-02-07

Marcus, Stephen

Agitating

Having specified feed means

Liquid injector within mixing chamber

366180, 366228, 366233, 118303, 118418, 239224, B01F 906, B01F 1502

Patent

active

044300034

ABSTRACT:
To uniformly and economically disperse liquids, via sprays of droplets, on surfaces of particles, a method moving the particles involves their rotary lifting, followed by their free falling, with a spray of droplets originating from a central area of the overall motion path of the particles. In a preferred embodiment of the blending apparatus, a hollow drum is rotated about a near horizontal axis. Inside the drum, commencing at each end are cantilevered non-rotating shafts, each positioning one or more powered slightly conical discs selectively tiltable to ultimately disperse respective sprays of droplets from a central area. This central area is defined by particles being lifted while centrifugally, for example, as the drum of eight feet in diameter is rotated at twenty seven revolutions per minute held to the interior of the drum and then at a zenith locale the gravitational force becomes effective enough so the particles drop in an arcuate cascade path back to the interior surface of the drum to start another cycle. The cycles are predetermined to continue until the particles acquire the selective quantity of dispersed droplets on all of their surfaces. Then the particles leave the interior of the rotating hollow drum opposite the end of their entry into the drum. This method and apparatus is particularly useful in treating with liquid resin binders, and/or waxd emulsions, thin wood wafers, wood flakes, wood shavings, sawdust and other particles of like respective sizes, which often are subsequently collectively formed and pressed into products, such as wood wafer boards.

REFERENCES:
patent: 2986338 (1961-05-01), Foster
patent: 3101040 (1963-08-01), Lanz
patent: 3974307 (1976-08-01), Bowen
patent: 4193700 (1980-03-01), Wirz
patent: 4237814 (1980-12-01), Ormos et al.

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