A stirring device for a powder tank of an apparatus for manufacturing a three-dimensional object. The stirring device is configured to rotate within the powder tank about an axis of rotation, and comprises a base plate and a strut. The strut extends from the base plate and is arranged to extend into the powder tank forming an obtuse angle with the outer edge of the base plate

A mixing-dosage apparatus for rotary machines for packaging containers includes a mixing portion and a dosage portion. The two portions have a selective fluid connection using a flow control valve, which acts between the two portions so as to feed the dosage duct with consecutive loads of mixed food mass. Each load has a volume that is approximately equal to the volume of the mixing chamber.

A mixing-dosage apparatus for rotary machines for packaging containers includes a mixing portion and a dosage portion. The two portions have a selective fluid connection using a flow control valve, which acts between the two portions so as to feed the dosage duct with consecutive loads of mixed food mass. Each load has a volume that is approximately equal to the volume of the mixing chamber.

A production method can include flowing a heterogeneous fluid mixture into contact with a homogenizing cutting tool, measuring a fluid mixture temperature so as to obtain a measured fluid mixture temperature, and determining a target fluid mixture temperature. The fluid mixture can be frictionally heated so as to obtain a heated and homogenized fluid mixture by driving the cutting tool at a rate based on (i) the target fluid mixture temperature and (ii) the measured fluid mixture temperature. The heated and homogenized fluid mixture can be flowed away from the cutting tool.

In one aspect, centrifuge feed pipes are described herein having design and architecture for mitigating wear during centrifuging operations. In some embodiments, a centrifuge feed pipe comprises a feed material inlet, a feed material outlet, and a conduit body extending along an axis between the feed material inlet and outlet, the conduit body having a variable inner diameter at one or more locations along the axis. In being variable, the inner diameter is not uniform over all radial positions of the inner diameter.

A jet propulsion dry powder dissolution unit that includes a hollow chamber, an upper blending reactor, an impeller, a stator, a stator compartment, a blending reactor nozzle, a submersible actuator, a lower blending reactor, and a solution outlet blending reactor.

A size of an agitating mechanism can be reduced. An agitating mechanism according to an aspect of the present disclosure is an agitating mechanism for agitating fluid flowing through inside a pipe, including: a rotary body placed inside the pipe so as to be able to rotate in a circumferential direction of an inner circumferential surface of the pipe; and a regulation part configured to regulate a movement of the rotary body in a longitudinal direction of the pipe. The rotary body includes a hollow part penetrating the pipe in the longitudinal direction of the pipe and an agitating blade provided in the hollow part.

Provided is a highly efficient pipe-type flocculation mixer, comprising: a feeding pipe, a mixing pipe, a discharging pipe and a mixer. The feeding pipe, the mixing pipe and the discharging pipe are disposed in parallel and sequentially communicated. The mixing pipe is a circular pipe and has two blind ends. The mixer comprises a driving motor, a mixing blade and a central shaft. One end of the central shaft is coupled to the driving motor, and another end of the central shaft is coupled to the mixing blade. The size of the mixing blade enables the mixing pipe to exactly accommodate the mixing blade. Also provided is a feeding-mixing device, wherein an agent can be introduced into a hollow central shaft via an agent feeding chamber, and be sprayed out from the central shaft into a mixing chamber; said agent feeding manner enables sufficient mixing.

A swirl generating pipe element for providing a rotational movement to a fluid, comprising a reluctance motor and a pipe section (9), wherein the reluctance motor comprises a stator element (1) and a rotor element (2); the stator element comprises multiple stator poles (3); the rotor element comprises a vane assembly having multiple rotor poles (4) and arranged to rotate around a rotor shaft (7) situated along the centerline of the pipe section (9), and each rotor pole has a first end (5) rotatably connected to the rotor shaft (7) and a second end (6) arranged close enough to one of the multiple stator poles (3) for a magnetic polarization to be induced in the rotor pole; and the pipe section (9) comprises a wall, having an external and an internal circumferential surface, and an inlet and an outlet for a fluid; wherein the stator element (1) and the rotor element (2) is separated by the wall (8) of the pipe section (9), and the multiple stator poles (3) are arranged at the external circumferential surface of the pipe section, and the second end (6) of the multiple rotor poles (4) are arranged adjacent to the internal circumferential surface of the pipe section, such that the vane assembly may provide a rotational movement to a fluid entering the inlet (10) of the pipe section (9).

Provided is a nano-micro bubble generator according to one aspect of the present invention, the nano-micro bubble generator including: a housing which a fluid flows into and out of; a plurality of rotors rotatably coupled to the inside of the housing; and a plurality of stators fixed to the inside of the housing and alternately arranged with the plurality of rotors, wherein at least one of the rotors and the stators has a mesh-like structure in which a plurality of flow passages of the fluid are arranged in a lattice form, and the rotors and the stators are arranged to be adjacent to each other so as to generate a collision, friction, and cavitation due to rotation of the rotors in the fluid flowing through the flow passages, thereby generating at least one of nano bubbles and micro bubbles in the fluid.