A blending method is described for preparing a blended mixture. The blending method for preparing a blended mixture, the method includes: providing a control system having at least a processor, a computer-readable memory, and a display, wherein the memory contains software configured to receive a recipe defining instructions for preparing a blended mixture using one or more blending materials and amounts for producing a batch size of the blended mixture on a scale; monitoring a weight on the scale as blending materials are added to a receptacle on the scale; and indicating on the display the amounts of the blending materials that have been added to the scale to prepare an amount of a custom blended mixture based upon the selected blending materials.

A method and apparatus for obtaining a solution from a solid product in contact with a liquid is provided. A solid product is housed within a dispenser. A liquid is introduced into contact with the solid product. The solution formed between the solid product and the liquid is collected, and a makeup liquid can be added thereto to further dilute or control the concentration of the formed solution. The amount of makeup liquid added to the solution can be controlled based on the temperature of the liquid to provide an automatic, continuously variable amount of liquid added to the solution. In addition, a method of providing a pressure independent control of the makeup liquid is also provided.

The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems. The treatment fluid can comprise a water-based fracturing fluid or a waterless liquefied petroleum gas (LPG) fracturing fluid.

The invention provides a feed-mixing wagon (1) for animal feed, comprising a frame with a drive, a container (4) with a continuous wall (5) with a feed-unload opening, a feed auger which is arranged in the container for mixing and cutting animal feed and comprising an auger shaft (8) and an auger body (10) which is arranged around it in a spiral which has several blades, wherein the blades comprise at least one blade (11) of a first, long type and at least one blade (12) of a second, short type, and wherein at least one blade of the short type is situated closer to the bottom (6) than at least one blade of the long type. As a result of the various blades in the described configuration, the cutting and mixing behaviour can be adjusted in an optimum way.

An apparatus for dissolving a gas into a liquid includes a liquid inlet for supplying liquid into the apparatus, a gas inlet for supplying gas into the liquid within the apparatus and a venturi arranged to dissolve the gas into the liquid passing through the venturi. The apparatus also includes an outlet for the liquid and dissolved gas downstream of the venturi. At least part of the liquid inlet, at least part of the gas inlet, at least part of the venturi and at least part of the outlet are integrally formed in a single piece of material.

An analysis instrument may perform analytical operations on an analyte that is combined with multiple reagents prior to being introduced into a flow cell. The instrument may include a nozzle sipper that aspirates reagents from a recipient, along with an analyte. The reagents may be directed to a volume and may be repeatedly moved into and out of the volume by cycling of a pump. The reagents may be ejected into a destination recipient with the nozzle sipper promoting vorticity in the recipient to enhance mixing. The repeated aspiration and ejection through the nozzle sipper effectively mixes the reagents and the template in an automated or semi-automated fashion.

A method for charging at least one extruder with at least one material web including rubber and/or plastics mixtures includes: transporting the at least one material web, at a distance from at least one material feed of the at least one extruder, into a region of a material feed, in each case by a conveying device; and receiving and/or processing and introducing, by at least one handling device having at least one tool, an initial region of the at least one material web into the at least one material feed of the at least one extruder. At least the at least one extruder, the conveying device, and the at least one handling device comprise a production plant.

Some embodiments of the present disclosure provide a material intake device and a urea preparation machine. The material intake device includes a housing, an inlet port is provided at a first end of the housing, and an outlet port is provided at a second end of the housing, and the housing is further provided with an exhaust port used for exhausting an air in the housing; a separation plate is provided within the housing to isolate the inlet port from the exhaust port, an air inlet duct and an exhaust ductexhaust duct are formed respectively between the separation plate and sidewalls of the housing, the exhaust port is communicated with the exhaust ductexhaust duct, and an overflow port connecting the air inlet duct to the exhaust ductexhaust duct is provided between a bottom of the separation plate and the sidewalls of the housing.

A system for treating the hair, to be connected to a water inlet, that includes at least one source of a cosmetic product, a water-dispensing device to convey the water to the hair, an adjustment device making it possible to inject, into the water, the product originating from the at least one source of product and to vary the content of product originating from this source in the water conveyed to the hair by the dispensing device and/or the amount of product conveyed to the hair by the dispensing device, this adjustment being able to assume at least one intermediate value between minimum and maximum content and/or amount values, a pressure booster to increase the pressure of the water at the inlet of the dispensing device beyond the pressure of the water at the inlet of the system.

An agitator assembly includes an agitator body, a shaft and a blocking part. The shaft is assembled to the agitator body and extends through a lead-through in the agitator body into the vessel, when assembled for use, and includes a sealing to seal the rotatable shaft. The blocking part arranged at the agitator body and including a shaft opening through which the shaft is arranged to extend, a mating surface to mate with the shaft which, when brought together by axial movement of the blocking part, provides a seal between the blocking part and the shaft, and the mating surface arranged at an axial distance from the sealing in the lead-through, and when brought together by the axial movement of the blocking part, provides a seal between the blocking part and the agitator body, and that the blocking part provides a closed space around the lead-through in the agitator body.