Abstract: A stationary material mixing apparatus for the mixing of a fluid stream. A conduit is provided containing a number of mixing stations located along the longitudinal axis of the conduit, each occupying the entire cross-section of the conduit. The array of mixing elements of each mixing station is related to mixing elements at other mixing stations in that mixing elements at downstream mixing stations are of a smaller dimension than mixing elements at upstream mixing stations so that more mixing elements are contained within each mixing station as mixing stations approach the downstream end of the conduit.

Abstract: A mixing device for mixing two or more liquids. A shell body is configured with a cavity having a longitudinal axis and circular cross-section which rotatably houses a shaft. The shaft is configured along a portion of its surface with grooves for receiving liquids from inlets located within the shell body. The shaft is further provided with tubular bores for receiving one of the components to be mixed and for injecting that same component downstream within a narrow annular gap region formed between the outer surface of the shaft and the inner surface of the internal cavity in that portion of the shaft containing the slotted grooves.

Abstract: An apparatus for mixing materials having no moving parts in which a plurality of elements are fitted into a conduit. At least some of the mixing elements and axially overlap with adjacent mixing elements. Each axially overlapping region provides a mixing matrix introducing complex velocity vectors into the materials to be mixed. A drift space subsequent to the matrix enhances the mixing operation.

Abstract: A stationary material mixing apparatus for mixing various components in a fluid stream. The mixing apparatus is a biscuit placed within a conduit along the longitudinal axis of the conduit. The biscuit contains a plurality of openings therethrough where within openings are located mixing elements which induce a rotational angular velocity to the fluid stream. The material mixing apparatus is particularly effective in mixing a low viscosity component into a high viscosity fluid stream.

Abstract: A device for the injection and mixing of steam into a fluid stream. A conduit which is cylindrically-shaped is provided for carrying a fluid such as water. A tubular conduit is then provided for discharging steam in the vicinity of a material mixing apparatus which possesses a plug for intermittently blocking steam discharge within the cylindrically-shaped conduit. A material mixing apparatus is positioned with the cylindrically-shaped conduit for mixing steam with the fluid stream, the material mixing apparatus being in the shape of the conduit and having openings containing mixing elements each of which induce a rotational angular velocity of the same sign to the fluid.

Abstract: An apparatus for mixing materials having no moving parts in which a plurality of mixing elements are arranged in parallel around the inner periphery of a conduit. The elements are held in place around the periphery by a support member which is positioned along the longitudinal axis of the conduit. Substantial stream division of material flowing in the mixer conduit is achieved over a short distance with a minimum pressure drop. Each of the plurality of elements initially imparts a rotational vector to portions of the material stream.