Patent ID: 9643135
Date: 2017-05-09
CPC Classifications: B01F,G05D

Claim:
1. A proportionate blending system comprising: a water supply system which selectively supplies water to a main line and a mixing line; a liquid additive storage vessel; a liquid additive intake valve; a mixing injector having a water inlet, a liquid additive inlet, and a mixed liquid discharge, wherein the mixing line provides water to the water inlet and the liquid additive storage vessel provides a liquid additive to the liquid additive inlet through the liquid additive intake valve, wherein the water and liquid additive are mixed inside the mixing injector resulting in a mixed liquid which flows out of the mixed liquid discharge at a predetermined ratio of liquid additive to water; a control valve having an actuator and an internal ball wherein the control valve controls a flow of liquid additive into the liquid additive inlet, the control valve providing a flow rate of liquid additive into the liquid additive inlet at a desired proportion of liquid additive to water, wherein the internal ball comprises an inlet side and an outlet side, wherein a flow channel extends from a flow entry on the inlet side to a flow exit on the outlet side, wherein the flow channel expands as it extends through the internal ball from the flow entry to the flow exit, wherein the flow entry comprises a triangular opening transitioning into an oblong slit and the flow exit comprises an oblong oval on the outlet side; and a controller which controls the control valve to achieve a desired flow rate of liquid additive into the liquid additive inlet to achieve the desired proportion of liquid additive to water, and a water purge line having a water intake valve which opens and closes upon receiving instructions from the controller, such that upon receiving the instructions from the controller a volume of water is released through the control valve, through the liquid additive inlet and out the mixed liquid discharge to purge any remaining liquid additive from the control valve and the mixing injector.