There is provided a kneading device for dispersing a dispersoid in a non-conductive material. The kneading device includes a pressure measurement unit that has a pressure receiving portion which comes into contact with a kneading substance formed of the non-conductive material and the dispersoid, and that measures a pressure value applied to the kneading substance formed of the non-conductive material and the dispersoid, and a determination unit that determines a dispersed state of the dispersoid dispersed in the non-conductive material, based on the pressure value measured by the pressure measurement unit.

A stirring impeller, an arrangement, and a use. The impeller comprises a hub disc comprising a shaft attachment structure arranged centrally in the hub for receiving a shaft centrally and perpendicularly from an upper side of the hub disc, a plurality of upper blades arranged on the upper side of the hub disc, and a plurality of lower blades arranged on a lower side of the hub disc. At least one of said plurality of upper blades is arranged to have jet angle of 5-45, and the lower blades have a jet angle that is different than said jet angle of least one of said plurality of upper blades.

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.

Embodiments of a mixing device power system generally include a power control module, an AC motor, and a variable frequency drive, wherein upon application of AC power to the system, electrical power is provided to the power control module which transmits electrical power to the AC motor, whereby rotation of a mixing spindle is initiated. After the spindle has begun rotating, transmission of electrical power from the power control module to the AC motor is ceased, and substantially simultaneously electrical power transmission is commenced from the power control module to the variable frequency drive which transmits electrical power to the AC motor, whereby rotation of the mixing spindle is continued. A method of using the mixing device power system to mix a fluid sample is also provided.

Embodiments of a mixing device power system generally include a power control module, an AC motor, and a variable frequency drive, wherein upon application of AC power to the system, electrical power is provided to the power control module which transmits electrical power to the AC motor, whereby rotation of a mixing spindle is initiated. After the spindle has begun rotating, transmission of electrical power from the power control module to the AC motor is ceased, and substantially simultaneously electrical power transmission is commenced from the power control module to the variable frequency drive which transmits electrical power to the AC motor, whereby rotation of the mixing spindle is continued. A method of using the mixing device power system to mix a fluid sample is also provided.

A helical blade body attachable to a food mixer by a shaft, the helical blade body formed from at least three helical blade members each of which has a first end connecting with a cap portion and a second end connecting with a base portion for creating a mixing zone within the helical blade body, each of the helical blade members having a spiraled configuration and extending from the cap portion to the base portion, wherein each of the helical blade members have the spiral angled in the same rotational direction, and wherein each of the helical blade members comprises a leading edge and a trailing edge with an upward facing spiraled flat surface in between with a predefined width and thickness so that during rotation of the blade body in a select rotational direction the spiraled flat surface will urge product being mixed upward, and wherein each helical blade is formed integrally with the cap portion and the base portion of a high strength plastic material. The unique shape of the helical beater described herein not only achieves higher mixing performance but also power efficiency. By using high strength plastics instead of metal, the improved helical beater design described herein will lower or fix material and manufacturing costs and will provide a better method of controlling the geometry of the beater body.

The present specification generally relates to mixing systems using impellers which entrain gas into the liquid both at the surface and below the surface where it is dispersed into the circulation produced by the impellers. In particular, the invention pertains to the use of multiple vertical agitators in a single fermenter tank to allow the hydrostatic head to remain constant as scale increases, thereby preventing an increase in dissolved carbon dioxide. In addition, multiple agitators allow for wider fermenters without the issue of tip-speed induced bacterial shear.

The present specification generally relates to mixing systems using impellers which entrain gas into the liquid both at the surface and below the surface where it is dispersed into the circulation produced by the impellers. In particular, the invention pertains to the use of multiple vertical agitators in a single fermenter tank to allow the hydrostatic head to remain constant as scale increases, thereby preventing an increase in dissolved carbon dioxide. In addition, multiple agitators allow for wider fermenters without the issue of tip-speed induced bacterial shear.

A storage vessel assembly for storing chemical includes a storage vessel, a frame for housing the storage vessel, an agitation device disposed in the storage vessel, a temperature control system coupled to the storage vessel, and a controller configured to operate the agitation device and the temperature control system.

Embodiments of a mixing device power system generally include a power control module, an AC motor, and a variable frequency drive, wherein upon application of AC power to the system, electrical power is provided to the power control module which transmits electrical power to the AC motor, whereby rotation of a mixing spindle is initiated. After the spindle has begun rotating, transmission of electrical power from the power control module to the AC motor is ceased, and substantially simultaneously electrical power transmission is commenced from the power control module to the variable frequency drive which transmits electrical power to the AC motor, whereby rotation of the mixing spindle is continued. A method of using the mixing device power system to mix a fluid sample is also provided.