Systems and methods for preparing construction material mixtures. A container can include a flexible body having an interior for receiving and holding construction material mixture components to be mixed. The construction material mixture components can be mixed in the interior by rotating a mixing tool. The flexible body is collapsible for forcing the construction material mixture out of a mouth of the container. The flexible body can be everted to facilitate cleaning the interior of the flexible body. The system can also include a stand, a mixing tool, a funnel, and/or a measuring cup.

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 rotary machine for acting on a process fluid includes an impeller, a shaft, a drive, a seal and a flush casing. The impeller acts on the process fluid and is mounted on the shaft. The drive is connected to the shaft and rotates the shaft and the impeller about an axial direction. The seal has a sealing element sealing the shaft during rotation of the shaft. The flush casing receives a flushing fluid for flushing the sealing element, and delimits an annular flush chamber extending about the sealing element. The flush casing includes a bushing surrounding the sealing element and delimits a radial leakage gap arranged between the sealing element and the bushing. The bushing delimits an axial leakage gap between the impeller and the bushing, and the width of the axial leakage gap in the axial direction is adjustable.

A vane for an impeller of an agitator for mixing or agitating a process fluid includes a socket for mounting the vane to an impeller and a blade for mixing or agitating the process fluid, the blade being connected to the socket, the blade having a leading edge, a trailing edge, and a blade tip extending from the leading edge to the trailing edge at the end of the blade facing away from the socket, and the blade having a height and a width. The height is the maximum distance of the blade tip from the socket and the width is the distance of the leading edge from the trailing edge. The blade has a maximum width that is at least 55 percent.

A cleaning method is provided during which a cover assembly is removed from a pressure pot of a material spray system. The cover assembly is mated with a wash tank, where the cover assembly closes an opening into the wash tank. Cleaning solution is directed into a cavity of the wash tank and against the cover assembly to remove material residue from the cover assembly.

A method for processing a fluid includes removably securing a retention member to a vessel that bounds a chamber; inserting a collapsible bag within the chamber of the vessel; securing the bag to the retention member so that the bag is supported within the chamber of the vessel; and dispensing a fluid into a compartment of the collapsible bag supported within the chamber of the vessel. The fluid can be mixed within bag while the bag is disposed within the vessel.

An apparatus for stirring the contents of a beverage cup without removing the lid. The lid of the cup is equipped with a rotating disk. A shaft having a finger tab at its top and a paddle device at its bottom traverses the disk in an offset position relative to the center of the disk. When the disk is rotated by the shaft, the paddle is dragged through the beverage, thus stirring the beverage.

Methods and apparatus for the treatment of animal waste are disclosed, together with a treated animal waste and fertilizer and growth media products derived therefrom.

A mixing and delivery system includes a compressible tube and a mixing apparatus. The compressible tube includes a reservoir configured for mixing and holding a surgical substance, an inlet portion for accommodating introduction of an element of the surgical substance into the compressible tube, and an exit port for enabling the delivery of the surgical substance to a target portion of an anatomy. The mixing apparatus is configured to be received through the inlet portion of the compressible tube for mixing elements of the surgical substance to form the surgical substance.

A reactor system includes a support housing having an interior surface bounding a chamber, the chamber having a vertically extending central longitudinal axis. A flexible bag is disposed within the chamber of the support housing and has an interior surface bounding a compartment. A mixing element is disposed within the compartment of the flexible bag. A drive element, such as a drive shaft, is secured the mixing element, wherein the mixing element is laterally offset from and/or is angled relative to the vertically extending central longitudinal axis of the support housing.