A system for preparing a polymeric mixture includes: a containment device configured to distribute dry polymeric materials; a receiving chamber in fluid communication with the containment device; a wetting bowl; a dispersing channel; and a mixing chamber connected to the dispersing channel. A method of preparing a polymeric mixture includes distributing water and dry polymeric materials through the various components of the system and mixing the materials with the mechanical mixing device.

An apparatus for treating water in a reservoir includes a funnel. A support assembly supports the funnel in a lengthwise upright orientation when the funnel is submerged. A water moving arrangement is arranged to move water through the funnel in a direction from an inlet at an upper end of the funnel towards an outlet at lower end of the funnel.

A system for evolving and dissolving a gas with a liquid can include a vessel having at least one wall forming a cavity, where the at least one wall includes at least one first surface feature disposed on an inner surface of the at least one wall. The liquid and the gas can be disposed within the cavity. The at least one first surface feature can alter the rate at which the gas evolves from or dissolves into the liquid.

An agitator comprises: a bearing unit that holds a shaft unit of the agitator and slides rotatably with respect to the shaft unit; and a rotary blade unit that is fixed to the bearing unit and rotates together with the bearing unit. The bearing unit comprises a first member composed of a material and the rotary blade unit comprises a second member composed of a material different from that of the first member.

A food mixer is presented having mixing tool detection capability. The food mixer has a base unit with a tool attachment portion, a mixing bowl attached to the base unit, and a motor attached to the base unit. The motor has operational settings and is configured to apply a torque to the tool attachment portion. A mixing tool is removably attached to the tool attachment portion, and a controller unit of the mixer is configured to detect the mixing tool attached to the tool attachment portion and to automatically control the operational settings of the drive motor based on the mixing tool detected. A magnet carrier may be used to detect a magnetic portion of the mixing tool as it moves with respect to a magnetically-sensitive sensor in the base unit.

The invention provides an apparatus for generating mist, comprising: a container adapted to accommodate a liquid, the container comprising an inlet for receiving an incoming fluid stream into the container, and an outlet via which an outgoing fluid stream exits the container; at least one agitating means arranged in the container for agitating the accommodated liquid to generate droplets of the liquid; wherein the agitating means is arranged to be driven by the incoming fluid stream, such that the generated liquid droplets are caused by the incoming fluid stream to form the outgoing fluid stream, and subsequently, exit the container. The invention also provides a system for generating mist, comprising: a plurality of the above described apparatuses, comprising at least a first apparatus having a first inlet and a first outlet, and a second apparatus having a second inlet and a second outlet; wherein the first outlet is adapted to be connected with the second inlet to thereby allow fluid communication between the first apparatus and the second apparatus.

There are provided a straining mechanism and a screw extruder including the straining mechanism, which can minimize material passing resistance in a breaker plate even, in a large-sized apparatus having high throughput, and which can improve the throughput by suppressing load power of the apparatus and heat generation of a material. For this purpose, a backup plate having an opening rate higher than an opening rate of a breaker plate and supporting the breaker plate is installed on a rear surface side of the breaker plate supporting a screen mesh.

A biological production system includes a mixing vessel and an agitation device. The mixing vessel includes an outer housing, an internal mixing structure, and a reaction chamber. The mixing vessel is configured to provide low shear agitation to materials in the reaction chamber in response to force from the agitation device.

A liquid mixing device includes: a cup body provided with an accommodating cavity; a cup holder, the cup body being detachably supported on the cup holder; and a Venturi structure integrally formed with the cup holder and located on a side of the cup body, the Venturi structure including a mixing cavity, a liquid inlet channel connected to the mixing cavity, a steam channel for connecting a steam source and an outlet channel for outputting, the steam channel and the outlet channel being connected to the mixing cavity, the liquid inlet channel being connected to the accommodating cavity through a liquid conveying pipeline, and the liquid inlet channel being connected to the liquid conveying pipeline at an angle. The complete Venturi structure is integrated with the cup holder, so that the number of parts is reduced, thereby making mounting and disassembly more convenient, thus providing great convenience to users.

The invention relates to an air humidifier (1) having a mixing chamber (5) in which is disposed an atomizing nozzle (9) configured to discharge a liquid (25) as a spray mist (10). The mixing chamber (5) is configured such that a gas (26) conveyed along a main flow path (8) through the mixing chamber (5) is mixed with the spray mist (10) and discharged at an outlet opening (7) of the mixing chamber (5). The atomizing nozzle (9) has a swirl device configured to impart a swirl to droplets (11) of the spray mist (10) in order to emit the spray mist (10) as a straight circular spray cone (12). It is provided that the mixing chamber (5) has a separating device (16) configured to catch droplets (11) of the circular spray cone (12) that move from the atomizing nozzle (9) along a hollow cone (14) having a predetermined interior angle (15), and to supply droplets (11) that move inside the hollow cone (14) to the outlet opening (7) of the mixing chamber (5).