An apparatus for producing lithium sulfide, including: a reaction container for allowing lithium hydroxide powder to be in contact with a hydrogen sulfide gas; a stirring blade inside the reaction container; a first heating apparatus that keeps the temperature of an inner wall of the reaction container that is in contact with the powder; and a second heating apparatus that keeps the temperature of an inner wall that is not in contact with the powder.

A machine prepares semi-frozen food products and/or beverages from pre-prepared (e.g. frozen) cups. A user chooses the desired frozen cup, inserts it into the machine, chooses how they would like it prepared from a range of thickness options, and the machine then opens a sealed chamber door and inserts the product upward into the chamber and prepares the product by blending it in the cup. Upon removal of the product and resealing of the chamber door, the cleaning mechanisms provide thorough cleaning of all food contact surfaces and the chamber interior. Automatic high temperature steam sanitation takes place in the chamber if the machine is not used for an extended period of time, thus greatly reflected or eliminating the need for manual cleansing and sanitation by an attendant and ensuring healthy food preparation in all times.

Provided are a refractory article, an anti-redox coating composition, and a method of manufacturing the refractory article. The refractory article includes: a platinum (Pt)-based substrate; and a coating layer for preventing a redox reaction on a surface of the Pt-based substrate, wherein the coating layer for preventing a redox reaction includes on an oxide basis SiO.sub.2 in an amount of about 40 wt % to about 70 wt %, Al.sub.2O.sub.3 in an amount of about 20 wt % to about 52 wt %, B.sub.2O.sub.3 in an amount of about 3 wt % to about 6 wt %; and CaO in an amount of about 2.4 wt % to about 4.8 wt %.

Attrition mills and propeller shaft assemblies therefor are described having features for enhanced installation and maintenance. Some embodiments include propellers having enhanced material processing characteristics.

A blender system includes a blender base that is selectively and operably engaged with a container. The blender base may include a housing that houses a motor operatively driving a mixing blade, and a fan. The fan may operate independent of the motor. The fan may force air through the blender base to cool the motor and other operative components of the blender base.

A bioreactor apparatus includes a vessel establishing an interior space environmentally separable from an exterior space outside of the vessel, an agitation system including mixing means arranged in the interior space and drive means adapted to rotate the mixing means. The drive means includes a drive motor that is arranged in the interior space.

Determining the consistency of a mixture during a mixing process based on feedback from the mixer. The feedback may be indicative of the torque exerted on a motor shaft of the mixer. The consistency of the mixture may be determined based on the amount of torque, rate of change of torque, change in the rate of change of torque and/or a comparison of the torque information to a stored torque profile. The torque may be determined based on the current in the coils of a motor of the mixer (e.g., by measuring the voltage across a precision resistor in series with the coils). Alternatively, the feedback may be indicative of the angular velocity of the motor shaft, sound output by the mixer, vibration of the mixer, color of the mixture, or opacity of the mixture.

The present invention relates to a method (300) for reducing an amount of microorganisms in brewers spent grains (BSG). The method (300) comprises feeding (S305) a liquid (120) and the BSG (110) into a mixing arrangement (130), mixing (S310), by means of the mixing arrangement (130), the liquid (120) and the BSG to form a mixture, feeding (S330) the mixture into a heat exchanger (140), and heating (S335), by means of the heat exchanger (140), the mixture for a predetermined period of time at a predetermined temperature such that the amount of microorganisms in the BSG (110) is reduced.

The present invention relates to a method (300) for reducing an amount of microorganisms in brewers spent grains (BSG). The method (300) comprises feeding (S305) a liquid (120) and the BSG (110) into a mixing arrangement (130), mixing (S310), by means of the mixing arrangement (130), the liquid (120) and the BSG to form a mixture, feeding (S330) the mixture into a heat exchanger (140), and heating (S335), by means of the heat exchanger (140), the mixture for a predetermined period of time at a predetermined temperature such that the amount of microorganisms in the BSG (110) is reduced.

A hyperboloid agitator for circulating liquids, in particular water, wastewater or the like, in the centre of which a connection portion (2) for connection to a hollow agitator shaft (1) is provided, characterised in that the hyperboloid agitator is formed as a hollow body, with a central aperture (3) for supplying air being provided in the connection portion (2), and in that an air distribution device (9, 10, 11) for distributing air supplied through the aperture (3) to a plurality of air outlet openings (14) provided in the hollow body is provided downstream of the aperture (3)