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| Releasing upper or lower
quick-disconnect clamps and activating the Air-Lift device affords
rapid access to either screen for inspection, cleaning or replacement. |
Ultra-high capacity in-line pneumatic screener
allows rapid cleaning, screen changes
A new PNEUMATI-SIFTER vibratory separator employs twin screening
decks for in-line pneumatic scalping of up to 60,000 lbs./hr (27,200
kg/hr) of bulk material, and an Air-Lift device that allows rapid
disassembly, cleaning, inspection and screen changes.
The chambers above the top screen and below the bottom screen are
connected by a central bypass chute, causing on-size material entering
the central chamber to reach the bottom outlet via two pathways:
upward through the top screen then downward through the chute; or
downward through the bottom screen. Oversize material is ejected
through a spout at the periphery of the lower screen.
The upper and lower screens are readily changed, or the entire
unit disassembled for thorough wash down, by loosening all quick-disconnect
clamps and the band clamps that connect housing sections, then activating
the Air-Lift device to separate the sections as required.
A tangential inlet along the horizontal centerline of the central
chamber prevents material from impacting screens at 90 angles. Gradual
changes in flow stream direction are said to minimize breakage of
oversize foreign material and subsequent material contamination,
and reduce screen breakage significantly.
The unit is equipped with "ball tray" anti-blinding devices
to dislodge near-size particles from apertures in the upstream side
of upper and lower screens, and is intended to remove oversize particles
from plastic resin, flour, starch, sugar, and numerous food and
chemical products gently, at ultra-high rates. Applications include
loading and unloading of trucks and railcars, and conveying of material
between process or storage areas.
Offered in 48" (1219mm) and 60" (1525mm) diameters, the
twin-screen machines are available to 3-A, FDA, BISSC and other
sanitary standards.
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