Poppet Valve

Fluid Bed Service

SFMS

Screw Feeders

 

/// Features

Pressure Control
Closed Loop Level Control

 

 

 /// The primary application for the twin screw feeder is for feeding dry (non-flowable) material that cannot be sucked into the cake pump. Improves volumetric filling efficiency.


/// For driving the screw feeder, the power unit is equipped with an auxiliary hydraulic pump and three position (Forward-Neutral-Reverse) control valve with high pressure relief cartridge. Screw feeder speed is adjusted by varying hydraulic pump output; output may be adjusted manually or electrically.
 
/// The screw feeder can be located in the same horizontal plane as the pump, with the screw feeder parallel or perpendicular to the pump on the left or right side in the direction of flow. The feeder can also be located above the pump.
 
/// The screw feeder is a combination of two intermeshing segmented flight cake breakers and twin screw conveyors. The cake breaker/screw feeder is a single fabricated unit designed to convey sludge continuously into the cake pump suction housing. The unit is designed to be self-cleaning during conveying. The inlet to the screw feeder is rectangular flanged, and has dimensions corresponding with customer specifications. Each cake breaker/screw is supported at the drive end by oil lubricated bearings installed in the screw feeder gear box and at the tail end by outboard grease lubricated bearings. The drive gear box is sized in accordance with the material to be pumped and the pressure required in the suction housing to insure good volumetric filling efficiency. The entire rotating assembly is designed to provide continuous duty under all anticipated load conditions. The hydraulic drive motor is coupled directly to the gear box.
 
/// The screw feeder is bolted to the pump suction housing with a flanged connection. The faces of the screw feeder and the pump, at the point of connection, are machined and furnished with O-Rings.
 
/// The screw feeder tub/housing and screws can be constructed of A36 steel or 304 stainless steel.

 

/// Positioning

/// Screw feeder is positioned parallel with the pump on the right or left side in the direction of flow. Pump and screw feeder are in the same horizontal plane.

/// Screw feeder is positioned in front and parallel with the pump on the right or left side in the direction of flow. Pump and screw feeder are in the same horizontal plane.

/// Screw feeder is positioned 90° to the pump on the right or left side in the direction of flow. Pump and screw feeder are in the same horizontal plane.

 

 
Careers