Abstract: This invention is directed to a stirring apparatus comprising: a plurality of blades having between a 5° to 180° twist along the length of their axis attached perpendicularly to a shaft so that a downward fluid flow is created when the shaft is rotated by a rotary drive; and, a plurality of standards attached to the plurality of blades separating the plurality of blades and arranged parallel to the shaft and rotated between 0° and 25° relative to a plane defined by the blades and the standards so that an inward fluid flow is created when the shaft is rotated and a bottom blade connected to the standards.

Abstract: A clay mixing apparatus includes a mixing chamber, a rotor arranged within the mixing chamber, a drive unit arranged to rotate the rotor, an ejecting unit, a pressure reducing unit; and an exhaust flow path. The rotor includes a shaft rotated by the drive unit, an extruding member and a mixing member. The mixing member includes a plurality of arms and a plurality of blades arranged at tip ends of the arms. The exhaust opening is opposed, in a radial direction about the center axis, to a portion of the mixing member lying near the extruding member and/or a portion of the extruding member lying near the mixing member.

Abstract: Stirring apparatuses for stirring molten glass are disclosed. The method includes stirring a molten glass with a stirrer comprising a layer containing at least about 50% iridium. An apparatus comprising an iridium-containing layer is also presented. In one embodiment, an apparatus for stirring molten glass includes a cylinder comprising a bore. A stirrer may be disposed in the bore. The stirrer may include a platinum or platinum alloy shaft coaxial with the cylinder. A plurality of impellers may project radially from the shaft into close proximity of a wall of the cylinder. Each impeller may include an arcuate distal end portion farthest from the shaft. The distal end portion of each impeller consists of iridium or an iridium alloy and the remainder of the impeller consists of platinum or a platinum alloy. The stirring apparatuses reduce metal loss from the refractory metal of the stirring apparatus.

Abstract: A distributive and dispersive mixing apparatus comprising two confronting surfaces (1,2) having cavities (3) therein which on relative motion of the surfaces function as a cavity transfer mixer (CTM) or controlled deformation dynamic mixer (CDDM) or both, CHARACTERISED IN THAT the normal separation of the confronting surfaces varies in the direction of bulk flow, so as to define a plurality of regions of successive closer and wider spacing of the confronting surfaces.

Abstract: A food mixing machine (10) has a rotatable shaft (18) which is attached to the shaft (21) of an agitator (20). The shaft (21) carries a ring (24) and a disk (23), and the ring (24) carries a cloverleaf-shaped chip (25). The chip (25) has opposed, generally flat lobes (27) with the opposed lobes (29) positioned between the lobes (27). The lobes (29) are inclined relative to the lobes (27). Cutout areas (31) are formed between the lobes (27, 29), and as the agitator (20) is being rotated by the shaft (18), a leading edge (32) on the lobes (27, 29) at the cutout areas (31) contacts the food being mixed. The leading edges (32) have a larger radius of curvature than the trailing edges (33) on each lobe (27, 29).

Abstract: The invention relates to an assembly to produce recipe mixtures, with a variable-speed agitator drive, a mixing chamber (1) whose capacity is matched to the desired quantity of recipe mixture and that is enclosed by a lid (9), and an agitator tool (2). The mixing chamber (1) and the agitator tool (2) may move with respect to each other along the axis of the drive shaft during the production of the recipe mixture. The agitator tool (2) may be driven by means of a drive shaft (15) that may be inserted through a sealable central aperture (11) of the mixing chamber. The agitator tool (2) possesses friction surface areas such that the material is drawn into the spaces between its ends and the opposing inner surfaces of the mixing chamber (1).

Abstract: An apparatus and method for fluid mixing comprising a housing having an internal chamber and a rotatable unit disposed in the chamber. Sufficient clearance is provided between the rotatable unit and the housing to create space for the mixing of the two or more dissimilar fluids. As one example, one fluid input arrives in the mixing chamber by suitable ducting in the housing and the other fluid input arrives in the mixing chamber via a passage in the rotatable unit, the fluids collide and mix and where preferably at least one array of surface irregularities are disposed on an exterior face of the rotatable unit. The refined fluid mixture leaves the apparatus from a exit in the housing preferably poritioned radially outwardly of the rotatable unit.

Abstract: An apparatus for scum removal is disclosed wherein toothed paddle induces turbulent effect on the fluids present in the reactor by means of its rotary motion. This results in both breaking and radial displacement of the scum, accumulated on the fluid during the course of the biochemical or chemical reaction, towards the outlet of the reactor, thereby ensuring that the reaction continues in scum free environment uninterruptedly.

Abstract: An axial flow mixing impeller system for efficient mass transfer by control of size of the bubbles of the fluid which is being dispersed, especially gases and liquids with viscosities greater than the liquid into which dispersion occurs, is obtained by creating passageways through the impeller blades for flow between the suction and pressure sides of the blades which disrupts the flow over the suction sides of the blades thereby reducing the tendency for bubbles to grow or coalesce into large bubbles which instead of being dispersed, rise to the surface without effective mass transfer to the liquid which is pumped by the impeller. The blades of the impeller may be slotted inwardly from the tips thereof to provide the passageways or may be formed from segments, gaps between which provide the flow passageways.