An impeller blade formed of a central base portion having a center axis. At least a pair of impeller blades is extended outwardly from the central base portion, with each impeller blade further including an extension. A leading edge is formed on each of the impeller blades, with each leading edge being defined by an outer periphery of the central base portion, and each leading edge having at least a portion that forms a continuous curve with a radius decreasing outwardly toward a radial tip of the corresponding impeller blade, wherein the continuous decreasing radius curve of each leading edge is formed by a portion of an ellipse centered on the center axis, a short axis of the ellipse being equal to a long axis thereof divided by approximately three and one-half. Each blade extension is projected from the corresponding impeller blade opposite of the leading edge.

Provided herein are methods and systems of the invention that include the use of an automated solution dispenser to form a solution according to at least one target characteristic. A controller may be operatively connected to the automated solution dispenser, wherein the controller is programmed to direct mixing of one or more solids and one or more liquids to produce the solution. At least a portion of the solution can be dispensed into one or more containers.

A mixer machine assembly having a drive unit with an electric motor, a drive shaft assembly connected to the electric motor, and a propeller. The propeller has a hub, a plurality of blades, and a propeller shaft from the drive shaft assembly. The control unit is operatively connected to the electric motor, and is configured for monitoring and controlling the operation of the mixer machine. The control unit monitors a drive shaft torque about a drive shaft of the drive shaft assembly. The control unit determines an average torque range based on at least one torque range, wherein each torque range is the difference between the highest and the lowest torque value detected during a predetermined angle of rotation of the propeller during operation of the mixer machine assembly. The control unit compares the determined average torque range with a predetermined torque range limit value.

A container for fermenting bio-degradable substances, the container comprising: a base and a wall, wherein an interior of the container is enclosed by the base and the wall; a rotatable agitator that protrudes into the interior and is supported in an upper bearing and a lower bearing in an installed position of the rotatable agitator in the container, wherein the rotatable agitator includes a shaft that is drivable by a drive, wherein at least one stirring paddle is arranged at the shaft and configured to co-rotate with the shaft so that substances arranged in the container are stirrable, wherein the lower bearing is arranged at the at least one base of the container and a bearing device located at a lower end of the shaft is supported in the lower bearing in the installed position of the rotatable agitator.

What is presented and described is a method for avoiding the microbial attack of a cleaning apparatus (X2), in particular a cleaning apparatus (X2) for a metering system, wherein the cleaning apparatus (X2) has at least one mechanical cleaning element (X29) with at least one cleaning surface (X31), wherein the method is characterized in that the at least one cleaning surface (X31) of the at least one mechanical cleaning element (X29) is exposed, at least temporarily, to an oxidizing agent. The present invention further relates to a method for cleaning a metering system, in particular for a dispersion, especially a paint-metering system, to a cleaning apparatus, and to a metering system.

The present invention relates to a system and method for preparing and dispensing a puree. The system comprises a blending vessel; a pulping element displaceable within said blending vessel, configured to blend ingredients into a puree. The pulping element is preferably a spinnable blade element displaceable within the interior of the blending vessel.

Wastewater treatment systems are disclosed. A wastewater treatment system includes a wastewater conduit disposed in a wastewater treatment vessel, a pump comprising an intake and an outlet connectable to the at least one opening of the wastewater conduit, and an adapter comprising a first end and a second end. The adapter is configured, in a treatment mode, to provide a flow path for wastewater from the wastewater treatment vessel through the adapter and pump to the wastewater conduit. The adapter is further configured to, in a backflush mode, provide a flow path for wastewater through the plurality of nozzles of the wastewater conduit and through the adapter and pump for discharge into the wastewater treatment vessel. Methods of treating wastewater using the system and adapter are disclosed. Methods of retrofitting a wastewater treatment system by providing the adapter are disclosed.

An apparatus for inserting and removing a mixer rotor pin includes at least one rotor pin with a transverse bore, as well as a rod dimensioned for slidably engaging the transverse bore. The apparatus also includes a mixer rotor pin insertion and removal tool having a tool body. A bottom of the tool has a slot for selectively engaging the aforementioned rod upon insertion of the rod into the transverse bore, and a top of the tool has a non-circular socket for accommodating a driver tool.

An apparatus for inserting and removing a mixer rotor pin includes at least one rotor pin with a transverse bore, as well as a rod dimensioned for slidably engaging the transverse bore. The apparatus also includes a mixer rotor pin insertion and removal tool having a tool body. A bottom of the tool has a slot for selectively engaging the aforementioned rod upon insertion of the rod into the transverse bore, and a top of the tool has a non-circular socket for accommodating a driver tool.

A paint production system produced from pigment pastes and vehicles without prior adjustment. The system includes a volumetric dosing module endowed with automatic volumetric calibrators, at least one continuous processing module that includes a rotary mechanism that moves at least one tank between a mixing station, a continuous adjustment station integrated into a filling station, a cleaning station jointly with a manifold cleaning solvent mist generator and a control center that sends commands to be executed in the volumetric dosing module and continuous processing module units from a set of instructions in a computer program.