Method of blending materials

A method for mixing materials in a liquid stream, which comprises introducing liquid into a chamber near an upper end thereof, such that the liquid flows in a generally helical path in said chamber, introducing a material into said chamber at a central location of its upper end and imparting a centrifugal force to said material such that it contacts said helically flowing liquid in an annular portion of the chamber which serves as a mixing zone, and is mixed with the liquid in said zone, said liquid and said material being isolated from one another until said material is in said mixing zone;

• and removing a mixture of the liquid and the material from said chamber.

A method for mixing materials in a liquid stream, which comprises introducing liquid into a chamber near an upper end thereof, such that said liquid flows in a generally helical path in said chamber;

• introducing a material into said chamber at a central location of its upper end and imparting a centrifugal force to said material such that it contacts said helically flowing liquid, said force being imparted by impeller means including upper and lower spaced plates and impeller vanes extending generally radially therebetween, said upper plate having a central opening for receiving material introduced at said central location, the impeller means being dimensioned relative to the chamber to define therewith an annular mixing zone in the chamber, said material supplied to the impeller and the liquid being isolated from one another until the material is in said mixing zone;
• and removing a mixture of the material and the liquid from said chamber.

A method of mixing and discharging liquid-to-liquid and liquid-to-solid constituents, which comprises

• introducing a material through a central inlet, into an outer concentric chamber, of apparatus mounted on a vehicle capable of movement from one location to another, and directing liquid under pressure to said chamber such that the liquid flows in a stream under pressure through said chamber relatively outwardly in respect of the location of the central inlet;
• imparting a centrifugal force to the material introduced through said central inlet such that said material is directed outwardly into the stream of liquid, said material and said liquid under pressure being isolated from one another until said impartation of centrifugal force;
• selectively regulating the proportionate amounts of mixed material and liquid respectively discharged from said chamber into a plurality of discharge manifolds.