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For conveying of raw meal, cement, precipitator
dust, coal meal and other pulverulent, non-sticky materials
Reliable and efficient in pneumatic conveying systems
Designed for easy maintenance
It is a screw type volumetric
line charger
It uses a material seal
It provides continuous/semi-continuous operation
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Fly ash intercept systems
Process conveying with our Screw Pumps
Dome storage and reclaim
Silo Aeration and loadout
Fly ash blending
The Screw Pump incorporates the best design features of the
air conveying system line of pumps, increasing the capability
and performance of the Screw Pump series.
The Screw Pump is used to pneumatically convey dry pulverized
materials such as cement, limestone, bentonite, various ceramic
clays and other materials at rates up to 13475 cubic ft/hour
(385 cubic meters/hour). The pump is ideally suited for intermittent
operating applications with a limit of 34 psig conveying line
pressure. There are two basic screw designs for this pump.
Using the same pump body, they provide a 150 mm (8")
or 350 mm (10") screw and barrel to provide a capacity
of up to either 1900 ft3/hour (54 m3/hour) or 13475 cubic
ft/hour (385 cubic meters/hour). Various mechanical or manual
loading and distribution methods can easily be replaced with
this totally enclosed, dustfree pneumatic conveying system.
Thanks to a low silhouette and short profile, the pump is
ideally suited for hopper-bottom car unloading. The Screw
Pump requires only a low-pressure, low-velocity air supply
to effectively meet its large throughput capacity.
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TYPE
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Impeller Space (mmxmm)
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Screw Diameter (mm)
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Capacity Max (m3/h)
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Conveying pressure MPa
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M150
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150x100
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150
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13
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0.02--0.24
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M200
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110x75
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200
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30
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150x100
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41
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190x120
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52
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M250
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140x90
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250
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71
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190x120
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95
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230x150
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113
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M300
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180x115
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300
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148
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220x140
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176
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260x170
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204
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M350
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300x190
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350
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239
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190x120
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294
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330x240
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385
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The Screw Pump is steel fabricated, consisting of a hopper
leading into a barrel section. Material enters the pump from
a bin or hopper-bottom car outlet. The material is advanced
into the barrel section by an impeller screw, and is compacted
by the decreasing pitch of the screw flights. The material
is then fluidized by air introduced from a low-pressure positive
displacement blower, and travels throughout the conveying
line to the discharge point.
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