Abstract: A system for mixing a fine bulk material including means defining a looped passageway including a vertically disposed, laterally enlarged section having a frusto-conically configured, lower outlet portion; means for injecting a fluid under pressure into an upper segment of such frusto-conically configured lower outlet portion to fluidize material therein; means for injecting a fluid under pressure into a lower segment of such frusto-conically configured lower portion to fluidize material therein; and means for injecting a fluid under pressure in said passageway downstream of said lower outlet portion sufficient to induce the flow of fluidized material through said passageway to an upper end of such enlarged section.

Abstract: A system for transporting measured amounts of bulk material from a first site to a remote site generally comprising means for holding a mass of material to be transported to the receptacle; means for transporting the material from the holding means to the receptacle; means for injecting a gas under pressure into the transporting means for pneumatically conveying material received from the holding means to the receptacle, operable in continuous and intermittent modes; means for sensing the weight of the receptacle; and a programmable logic controller operatively connected to the sensing means and the injecting means, operable responsive to a weight of the receptacle up to a first weight for operating the injection means in the continuous mode, a weight of the receptacle between the first weight and up to a second weight greater than the first weight for operating the injection means in the intermittent mode and to the second weight for discontinuing the injection means.

Abstract: A system for transporting measured amounts of bulk material from a first site to a remote site generally comprising means for holding a mass of material to be transported to the receptacle; means for transporting the material from the holding means to the receptacle; means for injecting a gas under pressure into the transporting means for pneumatically conveying material received from the holding means to the receptacle, operable in continuous and intermittent modes; means for sensing the weight of the receptacle; and a programmable logic controller operatively connected to the sensing means and the injecting means, operable responsive to a weight of the receptacle up to a first weight for operating the injection means in the continuous mode, a weight of the receptacle between the first weight and up to a second weight greater than the first weight for operating the injection means in the intermittent mode and to the second weight for discontinuing the injection means.