Compounding: Custom-Designed Process Vessels
Agitator shaft utilizes a mechanical seal running in an oil bath.
The newest process vessel from Charles Ross & Son Co., Hauppauge, N.Y., is this 300-gal vessel designed for 5 psi internal pressure at 300 F. Product wetted surfaces are stainless steel type 304L polished to 240-grit finish. The vessel is agitated by a special disperser blade driven to 1,150 rpm by a 75-hp explosion-proof motor. The agitator shaft utilizes a mechanical seal running in an oil bath. A 50-psig ASME Code-stamped baffled jacket surrounds the sides and vessel bottom for heating/cooling. All elastomers, nozzles, sensors, dip tubes, valves and operator controls are supplied based on the end user’s specific requirements.
You may be thinking of buying one of the new ‘high-torque/high-speed’ twin-screw compounders in order to raise your output without going to a larger machine. But how much torque or speed do you really need? Underusing a high-powered extruder wastes investment dollars. So look carefully at what is required for the materials you run.
New packaging opportunities are opening up for PP, thanks to a new crop of additives that boost clarity, stiffness, HDT, and processing rates.
Improved clarity and cost competitiveness, added to its inherent heat resistance, are reviving OPP’s prospects in hot-fill barrier containers. But hot-fill PET containers are raising the bar with higher productivity and ‘panel-less’ bottle designs.