Patent ID: 7114523
Filing Date: 2006-10-03
Classification: B01F,Y10T

Abstract:
1. An apparatus for mixing an aqueous fluid and a reactive polymer comprising: a mixing assembly; a first inlet port for the aqueous fluid to enter the mixing assembly; a second inlet port for the reactive polymer to enter the mixing assembly; an outlet port for a mixture of the aqueous fluid and the reactive polymer to exit the mixing assembly; and a pressure-actuated valve located at an intersection of the first inlet port and the second inlet port for introduction of the reactive polymer into the aqueous fluid at the intersection, the pressure-actuated valve including a spring-biased ball to mate with a valve seat to provide a positive seal, at least a significant portion of the ball being positioned in the intersection and between the first inlet port and the outlet port when the ball is seated such that flows from the first and the second inlet ports are designed to pass around the portion of the ball in the intersection.