The invention discloses an agitation device comprising an impeller, an agitating shaft and a power device. The impeller includes a disc, a hub and concave blades. Each blade consists of a concave surface which extends radially and has an annular sector-like shape, the projections of the upper and lower portions of the blade in the horizontal plane are two annular sectors, and the radian of the annular sector obtained by the projection of the upper portion is larger than that of the lower portion, and the annular sector-like shape and the rotation direction of blades are the same, so that each portion of the blades directly faces an incoming flow, the utilization efficiency of blades is increased and the impeller has low energy consumption and high gas-liquid dispersion efficiency. The device is efficient and energy-saving, has low power consumption, high mixing performance and high gas holdup and mass transfer performance.

A fluid treatment device with a new configuration is provided. The fluid treatment device is provided with an upstream treatment unit defined by treatment surfaces that rotate relative to each other, and a downstream treatment unit arranged downstream of the upstream treatment unit. The upstream treatment unit is configured such that, by passing the fluid to be treated into an upstream treatment space defined by the treatment surfaces, the fluid to be treated is subjected to upstream treatment. The downstream treatment unit is provided with a downstream treatment space which performs the function of retaining and mixing the fluid to be treated by means of a labyrinth seal. An upstream outlet of the fluid to be treated from the upstream treatment unit opens into the downstream treatment space, and the downstream treatment space is configured to use the labyrinth seal to perform the function of controlling retention time. The downstream treatment space is provided with narrow seal spaces, and retention spaces arranged upstream of the seal spaces and wider than the seal spaces, and the upstream outlet opens to a retention space.

A fluid treatment device with a new configuration is provided. The fluid treatment device is provided with an upstream treatment unit defined by treatment surfaces that rotate relative to each other, and a downstream treatment unit arranged downstream of the upstream treatment unit. The upstream treatment unit is configured such that, by passing the fluid to be treated into an upstream treatment space defined by the treatment surfaces, the fluid to be treated is subjected to upstream treatment. The downstream treatment unit is provided with a downstream treatment space which performs the function of retaining and mixing the fluid to be treated by means of a labyrinth seal. An upstream outlet of the fluid to be treated from the upstream treatment unit opens into the downstream treatment space, and the downstream treatment space is configured to use the labyrinth seal to perform the function of controlling retention time. The downstream treatment space is provided with narrow seal spaces, and retention spaces arranged upstream of the seal spaces and wider than the seal spaces, and the upstream outlet opens to a retention space.

Turning motion of gypsum slurry spouting onto a sheet of paper for a gypsum board liner is restricted for preventing maldistribution, deviation or irregular dispersion from occurring in the density distribution of the slurry on the sheet of paper. A mixing and stirring device for gypsum slurry has a circular casing forming a mixing area, a rotary disc positioned in the casing, and a tubular passage for feeding the slurry onto the sheet of paper for the gypsum board liner. A chute has a fluid passage portion with its cross section being non-axisymmetric with respect to a center axis of the tubular passage, or a fluid passage portion varying a position of the center axis of the tubular passage by a change or lateralization of the cross section of fluid passage.

A continuous kneading device is provided with an upper trunk (1) to which a powder supply tube (3) through which quantified powder is supplied is connected and in which the powder is blended with a fluid, and a lower trunk (2) concentrically connected to the bottom of the upper trunk (1). The continuous kneading device continuously kneads the powder and the fluid by a first rotating kneading plate (10) built into the upper trunk (1) and a second rotating kneading plate (11) built into the lower trunk (2), wherein surfaces of the base metals of the first and second rotating kneading plates (10, 11) are covered with a coating material (50) for reducing friction when the powder and the fluid are kneaded together.

Provided is a continuous reaction apparatus which can precisely control the path of flow of the liquid reaction mixture in the reaction vessel. Further, provided is a continuous reaction apparatus which can efficiently mix the liquid reaction mixture in the reaction vessel. The continuous reaction apparatus comprises a plurality of mixing vessel units and a plurality of partition units. These units are connected in the state of being alternately stacked on one another. Each mixing vessel unit has an agitating blade disposed in the inner space thereof. The relationship between the inner diameter D1 of the mixing vessel unit, the height H of the mixing vessel unit, and the outer diameter d1 of the agitating blade satisfies the formula (1): 10(D1/H)1.5, and the formula (2): 0.99(d1/D1)0.7. The agitating blade is a circular disc-type agitating blade.

A vertically moving horizontal mixer assembly which includes a tank having an axis. A stator and blade support assembly is movable parallel to the tank axis. At least one rotatable blade substantially perpendicular to the tank axis is moveable parallel to the tank axis. The rotating blade may be a flat circular disk with raised tooth edges perpendicular to the disk around the circumference of the blade. An optional stator also directs and encourages movement and mixing of solids with liquids.

Disclosed herein is a method for generating capsules with a solid matrix (7) as well as a capsule assembly comprising a plurality of capsules obtained by such a method. The method relies on temperature dependent step-emulsification of a droplet phase including a liquid hydrophobic matrix and a continuous aqueous phase.

An agitation device includes: an agitation member including a disk of substantially plate shape provided rotatably about a vertical axis in a passage through which liquid and gas flow; and a motor configured to rotationally drive the agitation member. The disk is provided with a plurality of openings to shear the liquid and the gas.

An agitation device includes: an agitation member including a disk of substantially plate shape provided rotatably about a vertical axis in a passage through which liquid and gas flow; and a motor configured to rotationally drive the agitation member. The disk is provided with a plurality of openings to shear the liquid and the gas.