Metalfab Model DBIM (mini) Volumetric Screw Feeder - Manual

METALFAB, INC.
P.O. BOX 9 °© PRICES SWITCH ROAD
VERNON, NEW JERSEY 07462
TEL. (973) 764-2000 * FAX (973) 764-0272
INSTRUCTIONS FOR OPERATION & MAINTENANCE
MODEL DB1M (MINI) VOLUMETRIC SCREW FEEDER
General Description
The DB1M Feeder is a simple, rugged and accurate Volumetric Feeder used for
the dependable metering of dry solids into process. It consists of a 1 ft._ hopper
as standard, a trough with an agitator/conditioner screw, a metering screw and a
variable speed drive.
The function of this screw is to keep the material in motion and also "condition"
the material to a constant density while insuring complete filling of the metering
screw flights. Hence, accuracy is maintained while rates are varied by screw
speed changes.
Installation
The DB1M Feeder is shipped complete and ready for operation. There is no
need for bolting the unit into place, therefore, the four (4) levelers positioned
under the base plate are equipped with rubber pads. Room should be provided
at the discharge end to allow for screw removal. Normally, 20" clearance is
sufficient.
Electrical Requirements
Standard units are provided with DC drives which have their own SCR controllers
capable of converting alternating current to direct current. They are single
phase units, 115 volt up to 3/4 HP. The controller may be mounted at the
Feeder location or remotely. See separate manual for controller instructions.
Note: Units with shunt wound motors have the field energized at all times with
the switch in the off position. If feeder is not to be used for an extended period
of time, it is recommended that an AC line switch be installed prior to the control
to power down the control.