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Method and apparatus for mixing dry particulate material with a liquid

  • US 4,764,019 A
  • Filed: 09/01/1987
  • Issued: 08/16/1988
  • Est. Priority Date: 09/01/1987
  • Status: Expired due to Term
First Claim
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1. A method for mixing dry particulate material with a liquid, comprising the steps of:

  • initially mixing the dry particulate material with a stream of liquid in a mixing bowl to form a slurry;

    passing the slurry through a conduit to a primary tank for additional mixing;

    recirculating a portion of the slurry contained in the primary tank through a recirculating loop to further mix the slurry in the primary tank;

    passing a portion of the slurry from the primary tank to a larger capacity, secondary tank;

    passing a portion of the slurry contained in the secondary tank out a discharge conduit;

    recirculating a portion of the slurry contained in the secondary tank to the mixing bowl where it combines with the stream of liquid and dry particulate material entering the mixing bowl;

    measuring the density of the slurry contained in the primary tank; and

    attaining the desired density in the slurry passing out the discharge conduit by continuing to recirculate slurry from the secondary tank to the mixing bowl while adjusting the entering flow of dry particulate material and liquid entering the mixing bowl based upon the density measurement taken from the primary tank.

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