Patent ID: 6866074

Claim:
A tank assembly for classifying and blending sand products, said tank assembly comprising: A. a receptacle adapted to retain slurry at or below an upper level, said receptacle comprising: (i) a feed end having a receptacle inlet; (ii) a discharge end having a receptacle overflow outlet, said discharge end being generally opposed to the feed end; (iii) a pair of side walls extending between the feed end and the discharge end; B. a plurality of upper cross tubes mounted to and extending between the pair of side walls of the receptacle, each of said plurality of upper cross tubes being disposed above the upper level of the receptacle; C. a plurality of settling stations mounted in the receptacle, each of said settling stations comprising: (i) an adjustable height sensing paddle adapted to control the amount of slurry that accumulates at the station; (ii) a discharge valve; (iii) a slurry discharge pipe; D. a slurry collecting flume extending to and in communication with the slurry discharge pipes, said slurry collecting flume having a slurry collecting flume outlet.