Overview - ProMinent ProMix S Operating Instructions Manual

ProMinent ProMix 'S & C' Polymer Feeder
i. Overview:
The ProMix S & C "TA Series" Polymer Feeder is a skid system designed to control feed water and polymer and
combine them to produce a high quality solution. The system is designed to receive liquid neat polymer while
mixing it with feed water to produce and discharge a quality solution from the system.
Research in the science of polymer activation indicates that the activation energy must decrease as the
polymeric chain is uncoiled to prevent rupture and hence decrease the performance of the product.
The mixing by the Polymer Feeder is accomplished
mechanically with three distinct mixing zones separated
by baffles. The first zone consists of a fast mixing blade
that delivers high shear at the precise point of polymer
injection, creating an immediate dispersion before
agglomeration takes place. The second mixing zone
induces a vortex and draws solution down through the
center of the chamber from zone one and forces the
solution outward to the sides and then down into the third
zone. Finally, the third zone mixing blade gently
agitates/blends the active polymer solution before it exits
the chamber via the discharge tube.
The ProMix S & C Polymer Feeder controller offers several operating options. These options are selected using
various combinations of the controller door switch positions and polymer type selections via the controller menu.
The controller allows the polymer pump speed to be controlled either locally via the keypad or remotely via a
customer supplied 4-20 mA signal over a 0 to 100% speed range. The polymer dosage rate must be calculated
and the pump adjusted for the desired ratio concentration of polymer to dilution water leaving the feeder by
volume. Different maximum concentrations are possible based upon the type of polymer. Emulsion polymers
should be limited to a maximum of 1% concentration in the mixing chamber and Mannich polymers should not
exceed 10% in the mixing chamber. The polymer type to be used is selectable from the keypad menu.
The System Start switch on the controller door has three positions, ON, OFF and REMOTE. ON enables the
controller locally and REMOTE allows the controller to be enable via a customer supplied dry contact. The
Polymer Pump switch has two positions, LOCAL and REMOTE. Placing the System Start switch in the OFF
position after having first been in either of the other two positions will initiate a flush cycle for the system before
shutting down.
The Polymer Pump switch on the controller front door has two positions to choose the source of the pump
control signal. In the LOCAL position the controller uses the keypad entry for polymer pump speed. In the
REMOTE position a user supplied 4-20 mA signal representing 0 – 100% pump speed controls the pump. The
user must manually adjust the primary and post dilution valves for the desired dilution water flow rate and must
calculate the required pump speed to attain the desired concentration. Rotameters are provided to monitor the
dilution water flow rates.
The ProMix Polymer Feeder is equipped with all the necessary components for easy installation, reliable
performance and safe operation. The design incorporates an electric solenoid valve (water inlet), flow
meter/switch, manually adjustable rotameters for primary and secondary dilution flow, either a peristaltic or
diaphragm type neat polymer pump (depending on model), microprocessor based controller, manual ball valves,
pump calibration column, PVC piping and components, and polymer mixing chamber mounted on a skid to
facilitate proper mixing and delivery.
ProMix Series S&C User Manual