Abstract: Provided is a vertical agitating apparatus which can shorten the time of vertically uniform mixing, uniformalize flow rates in the vertical direction, and shorten the time of heat transmission in a deep liquid agitating tank, an agitating tank having a conical bottom part with an acute apex angle of less than 60 deg. or in a tank combination of the former two tanks, and in which a rotary shaft is arranged in the tank so as to be rotatable by a drive located outside of the tank, bottom paddle blades having a large area are attached to the lower part of the rotary shaft, and lattice blades in combination of vertical grids and horizontal arms are provided to the rotary shaft above the bottom paddle blades, the distance between the outer edge of the vertical blades at the outermost end of the lattice blade and the center of the rotary shaft being set so as to be greater than that of the bottom paddle blades.

Abstract: A continuous type kneading machine comprising a chamber formed by a pair of parallel cylindrical cavities communicated with each other at their sides and a pair of rotatable rotors housed in disengaging state in the cavities, wherein each of the rotors is formed in a blade form having a spiral angle and a constant cross section in the axial direction, and directions of the spiral angles of the rotors in the cavities are opposite to each other and a phase difference in the axial direction during rotation of the rotors is kept at constant.

Abstract: Disclosed is an agitator including an agitation axis at the center of the agitator vessel, an agitator blade mounted on the agitation axis and consisting of a flat-plate-shaped blade disposed along the inner surface of the bottom wall of the agitator vessel and a grating-shaped blade continuous with the flat-plate-shaped blade, a baffle plate vertically extending for rotation around the agitator blade along the inner surface of the side wall of the agitator vessel, and drive equipment for rotating the baffle plate and the agitator blade independently from each other. When the agitator blade and the baffle plate are rotated at different speeds, circulating flow is formed in the vessel. The grating-shaped blade at the upper portion of the agitator blade shears a part of the circulating flow which descends along the radially inward agitation axis, thereby dividing that part of the flow into small parts.