A fluid mixing system includes a flexible bag having a first end, an opposing second end, and an interior surface bounding a compartment; a retainer coupled to the second end of the flexible bag, the retainer having a retention cavity formed thereon that communicates with the compartment of the flexible bag; and an elongated member having a first end rotatably coupled to the first end of the flexible bag and an opposing second end freely disposed within the retention cavity of the retainer so that the second end of the elongated member can rotate within the retention cavity relative to the retainer.

Embodiments of the present disclosure involve methods, devices, and systems for hydrating polymers using multiple mixing chambers. Adjacent mixing chambers may be coupled using an under-over baffle, and each mixing chamber may be generally rectangular with rounded corners.

Disclosed is a wind-driven rotating and shaking breather, comprising an open container having a circular cross section, and a lid covering an opening of the open container and having a wind wheel and a motor. A rotating shaft of the motor is connected to the wind wheel. The wind wheel is mounted on a lower portion of the lid and composed of an impeller and a flat bottom plate disposed below the impeller. The wind wheel, horizontally arranged, is inserted into the open container and located above red wine contained in the open container. An edge of the lid or a side wall of the container is provided with an air outlet. The motor drives the wind wheel to extract air in the open container and discharge the air from the air outlet. By using the breather, the purpose of fast breathing is achieved. Also disclosed is a breathing method.

An agitator device, in particular a draft tube agitator device, with at least one stirring unit, which is rotatable around a rotary axis, which is configured for conveying a fluid in an axial conveying direction and which includes at least one rotor blade element, the projection of said rotor blade element onto a plane that is perpendicular to the rotary axis having an at least substantially circular-arc-shaped outer contour, the rotor blade element comprises at least one first region, which is situated in a blade plane and is at least substantially planar, and includes a second region, which is curved out of the blade plane.

A single stage clarifier and mixing assembly includes a housing, a mixing section within the housing and a clarifier section within the housing. The mixing section includes a mixing chamber having (a) an inlet, adapted for delivering an inlet stream to the mixing chamber, at an upper end, and (b) a mixing section outlet at a lower end. The clarifier section extends concentrically around the mixing section. The single stage clarifier and mixing assembly also includes an agitator adapted for mixing the inlet stream in the mixing chamber.

Mixers for adhesives and sealants that include automatic stroke length adjustment for different sizes and configurations of adhesive and sealant cartridges are disclosed. The mixers include a sensor for detecting when a mixing impeller reaches the top of a cartridge and the bottom of a cartridge, which sends a signal to a main pressure cylinder to reverse direction. The stroke length of the mixer is automatically adjusted without the necessity of manual selection based upon a particular cartridge size.

A bag assembly for use with a heat exchanger includes a flexible bag having of one or more sheets of polymeric material, the bag having a first end that bounds a first compartment and an opposing second end that bounds a second compartment, a support structure being disposed between the first compartment and the second compartment so that the first compartment is separated and isolated from the second compartment. A first inlet port, a first outlet port, and a first drain port are coupled with the flexible bag so as to communicate with the first compartment. A second inlet port, a second outlet port, and a second drain port are coupled with the flexible bag so as to communicate with the second compartment.

Devices suitable for use in an advanced oxidation method for organic and inorganic pollutants deploying OH* radicals and ozone is disclosed. Optionally, a first discharge device, providing OH* radicals and second discharge device providing ozone, are combined to provide desirable chemical and biocidal characteristics. Further, efficient mixing systems for transferring the radicals to the target fluid are disclosed.

A fluid mixing system includes a flexible bag having a first end, an opposing second end, and an interior surface bounding a compartment. A first rotational assembly includes a first casing mounted to the first end of the flexible bag and a first hub rotatably mounted to the first casing. A second rotational assembly includes a second casing mounted to the second end of the flexible bag and a second hub rotatably mounted to the second casing. An elongated member has a first end coupled with the first hub and an opposing second end coupled with the second hub, the connector being flexible and having a uniform flexibility along its entire length. A first impeller is mounted to the connector.

A novel device for frothing milk and corresponding method are disclosed. The frothing device preferably comprises a rotatable shaft, an impeller rotatable by the shaft, and a screen disposed about the bottom of the impeller downstream of milk being pushed by the impeller. In another embodiment, the frothing device may further comprise a pitcher having a bottom wall, wherein the rotatable shaft extends upward from the bottom wall of the pitcher. This embodiment may further comprise a heater in the base of the pitcher. In yet another embodiment, the frothing device may further comprise a pitcher having a bottom wall, wherein the rotatable shaft extends upward from the bottom wall of the pitcher. This embodiment may further comprise a housing having a heater and a nub extending upwardly from the housing. The nub is configured to engage an opening at the bottom of the shaft for rotating the shaft. The disclosed embodiments advantageously create foam and further break the foam bubbles down into microscopic bubbles resulting in a silky smooth foam-textured milk without the conventional use of a steam wand or other such device.