US 5,145,256 A · Apparatus for treating effluents

Abstract

An apparatus and method for treating effluents is disclosed for selective solids control and/or dewatering of effluents, for example drilling fluids (or mud), slurries or sludges, or other clean up involving solids removal from a hydraulic system where flocculation would be employed. The apparatus is compact and portable for ease of on-site delivery and hookup and includes a plurality of mixers for mixing polymer materials with water and/or the effluent, a plurality of pumps for controlling the flow of effluents, water and mixed liquids, and a plurality of conveniently located valves and pump controls for control of the various functions of the apparatus from a centrally located control panel. An improved mixing device is provided for blending of shear-sensitive fluids which includes multi-port injection sites and a series of geometrical flow altering elements. A device for wetting dry particulate material in a liquid feed stream is provided having a cylindrical funnel eductor and a cyclonic dispersal eductor.

Claims16

Dependent claims

A device for mixing shear-sensitive fluid including an effluent and a treating material, said device comprising:

housing means having an inlet for receiving the effluent, input means for separately receiving the treating material, and an outlet;
and
a plurality of longitudinally spaced, differently configured flow altering elements positioned in said housing means adjacent to said input means between said inlet and said outlet for repeatedly altering flow of the shear-sensitive fluid to induce blending of the effluent with the treating material, each of said elements having a face positioned at an angle relative to overall flow direction of the fluid, said angle selected for limiting back pressure in said housing means, and one of said flow altering elements being a double taper ring connected to said housing means so that a manifold is defined for receiving the material from said input means and distributing the material to the interior of said housing means through a plurality of injection ports defined radially around a downstream side of said double taper ring.

Dependencies are inferred from the claim text.

Apparatus for treating effluents

Life of this patent

Apparatus for treating effluents

Life of this patent

Abstract

Claims16