PRINCIPLE OF OPERATION
The PF-730LF Powder Feeder operates on the patented and proven fluidics principle, which eliminates the need for mechanically moving parts to deliver powder. Mechanically moving parts, when operated in abrasive media
have a tendency to wear which in turn can result in variations in coating quality. The fluidics powder feed delivery principle provides a continuous, non-pulsating feed of powder, thereby insuring the user optimum
process control and improved coating quality. An added benefit is low down- time, coupled with reduced maintenance and replacement part cost.
The system is designed so that a predetermined quantity of gas is delivered to a closed hopper
containing powder. The hopper is constructed so that the gas is passed through a filter located at the bottom of the unit where it is diffused through the powder, causing the powder to become entrained in the gas
and thereby become fluidized. A powder pickup tube is positioned above the fluidizing gas inlet allowing the fluidized media to be delivered under a shed on the pickup tube through a number of controlled apertures
and then to a carrier area where it is propelled by the carrier gas to the feed hose.
The flow of carrier gas is monitored and controlled by the flowmeter located on the front panel of
the Powder Feeder, and the fluidizing gas by the precision regulator. The delivery rate is a function of the quantity of fluidizing gas and the discharge velocity of the powder is controlled by the carrier flow.
These parameters can be optimized and controlled for the specific powder being used during the coating process. The amount of fluidizing gas is controlled by the black regulator knob, located on the front of the
Console.
A major innovation in powder feed technology, makes balky mechanical feeder obsolete by using gas
fluidization as the metering agent. Its gas supply is initially split into two streams. One acts as the carrier and flows through a tube in the base of the hopper. The other is introduced past filters into the area
where it fluidizes and conveys the powder to orifices in the pickup tube and into the carrier gas. The feed rate is proportional to the fluidizing gas flow and can be precisely controlled over a very wide range.
This revolutionary concept provides many new features and advantages for your coating operation.
MINIMUM MAINTENANCE
Heavy Duty Hardware: * Welded aluminum hopper, * Swagelok fittings
Easy to Clean: * Quick disconnect facilities for rapid powder change
Simple to Service: * No moving parts, * Full access to controls
HIGH PERFORMANCE
Handles all Powders: * From finest Ceramics to Heavy Metals and Carbides
Low Feed Rate Range: * Choose from less than 2 gm/min up to 9 lb/hr
Excellent Delivery: * Steady and repeatable from job to job, day to day
Cost Effective: * Low gas flow requirement reduces gas consumption
VERSATILE OPERATION
Digital Display: * Panel mounted to monitor powder feed backpressure
Remote Operation: * Remote powder feed on/off pendant
Automatic Interface: * Feeder will readily adapt to all major systems
For non-stop, non-pulsating, precision accurate powder delivery to virtually all plasma & combustion systems. The PF-730LF Powder Feeder Provides:
- Consistent and accurate non-pulsating powder delivery.
- Reproducible delivery rates for a wide variety of powders.
- Spray rates less than 2 gm/min up to 9 lb/hr.
- Continuously monitored feed rates for greater process coating control.
- Complete portability and virtually maintenance-free hardware.
- Remote powder feed on/off pendant.
- Quick disconnects for easy cleaning of the hopper.
- Dedicated hopper for maintaining total coating control on all critical applications.
- Automatic interface with all Plasma and Combustion systems.
- Panel mounted digital display to monitor powder feed backpressure
- Improved coating quality.
- Reduced maintenance cost and downtime.
PF-730LF Gives You Three Big Advantages - Better Quality Coatings - Higher Productivity - Greater Economy. |
