MULTI-STAGE ACCURATE BLENDING SYSTEM AND METHOD

摘要

A blending system for blending a feed liquid and first and second adjusting liquids includes a first feed means adapted to communicate with a supply of feed liquid, a second feed means adapted to communicate with a supply of the first adjusting liquid and a third feed means adapted to communicate with a supply of the second adjusting liquid The first, second and third feed means may be pumps, valves or combinations thereof A mixing device is in communication with all feed means First and second sensors are in communication with the mixing device and a controller so that first and second characteristics of the solution in the mixing device can b detected The controller communicates with the feed means so that delivery of first and second adjusting liquid to the mixing device can be controlled based upon the detected characteristics of the solution in the mixing device