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Tower configuration gravimetric blender

  • US 10,138,075 B2
  • Filed: 10/14/2016
  • Issued: 11/27/2018
  • Est. Priority Date: 10/06/2016
  • Status: Expired due to Fees
First Claim
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1. A gravimetric blender comprising:

  • a) a vertically oriented conduit;

    b) a vacuum pump, supported by the conduit, and having a suction inlet communicating with the conduit interior;

    c) a plurality of receivers, each connected to the conduit, being vertically supported thereby and being angularly spaced thereabout, for vacuum draw though the individual receivers via the conduit by the pump, each receiver having a resin material/vacuum drawn stream inlet and a resin outlet;

    d) each receiver having only a single tube therewithin extending from the resin material/vacuum drawn stream inlet to the connection of the receiver with the conduit, each tube comprising;

    i) an air cylinder within and connected to the tube, positioned to close the receiver connection to the conduit upon actuation thereof;

    ii) a plug within the tube and connected thereto for downwardly deflecting resin material carried by a resin material/vacuum drawn stream entering the receiver via the tube;

    iii) a valve at the resin outlet, closing responsively to vacuum drawn within the receiver and opening responsively to the presence of resin material within the receiver in the absence of vacuum draw within the respective receiver; and

    iv) a plate connected to the air cylinder, for closing the receiver-conduit connection upon air cylinder actuation.

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