A rotor assembly for a rotary mixer is disclosed. The rotor assembly includes a main drive configured to rotatably drive the rotor assembly, a main drive clutch enclosed in a drivetrain housing of the main drive, an actuation valve operably coupled to the main drive clutch, the actuation valve configured to actuate the main drive clutch between at least a first position and a second position, a rotor drum, a rotor drive gearbox having an input and an output, the gearbox output operably coupled to the rotor drum, a main drive belt rotatably coupled to the main drive clutch and the rotor drive gear box input such that a rotation of the main drive clutch imparts a rotation on the rotor drive gear box, and a speed sensor operably coupled to the rotor drum, the speed sensor measuring a rotational speed of the gearbox and generating a rotor speed signal, wherein based on when the rotor speed signal is below a predetermined rotor speed threshold the actuation valve is activated to rotate the main drive clutch a predetermined amount between the first position and the second position.

Accordingly, in some embodiments of the disclosure, a multi-chambered assay device is provided, which is configured for arrangement on a disc, as well as configured to process an individual sample. A plurality of such assay devices can be arranged along a periphery of the disc at a distance/radius from the center, such that a plurality of individual samples can be processed, e.g., one per assay device. In addition, in an arrangement that a plurality of assay devices are used, they can be spaced apart such that they balance the disc during rotation (which can be with samples contained in one or more of the assay devices, a plurality, a majority, or all of the assay devices).

Accordingly, in some embodiments of the disclosure, a multi-chambered assay device is provided, which is configured for arrangement on a disc, as well as configured to process an individual sample. A plurality of such assay devices can be arranged along a periphery of the disc at a distance/radius from the center, such that a plurality of individual samples can be processed, e.g., one per assay device. In addition, in an arrangement that a plurality of assay devices are used, they can be spaced apart such that they balance the disc during rotation (which can be with samples contained in one or more of the assay devices, a plurality, a majority, or all of the assay devices).

The present invention discloses a preparation process of food-grade potassium dihydrogen phosphate, wherein phosphoric acid prepared from wet-process phosphoric acid is used for the preparation of high-purity potassium dihydrogen phosphate. The preparation process of food-grade potassium dihydrogen phosphate provided in the present invention effectively reduces the preparation cost of the high-purity potassium dihydrogen phosphate and has the advantage of high process controllability, and by such a process, high-purity potassium dihydrogen phosphate crystals that meet the food-grade requirements can be produced, which crystals have uniform particle size distribution and comprises few fine powder, having a very high market value.

A feed mixer apparatus that includes a mixing chamber for receiving feed, and having a mixing element situated therein for mixing the feed, a transmission having a plurality of gears and connected with a mixing element, a drive system having a plurality of drive system components, including the transmission, a torque sensor interconnected with at least one drive system component, a control unit having a display and a plurality of user inputs, wherein the control unit is in at least indirect communication with the transmission and the torque sensor, and wherein the control unit receives a plurality of outputs from one or more of the transmission and torque sensor, and based at least in part on the plurality of outputs, provides an output command to effectuate a gear change in the transmission.

A feed mixer apparatus that includes a mixing chamber for receiving feed material, and having a mixing element situated therein for mixing the feed material; a transmission having a plurality of gears and connected with a mixing element; a control unit having a display and a plurality of control panel inputs, wherein the control unit is in at least indirect communication with the transmission and the sensors, and wherein the control unit receives a plurality of outputs from one or more of the transmission and sensors, and based at least in part on the plurality of outputs, provides an output command to effectuate a gear change in the transmission, and wherein the control unit includes a processor, a memory, and a control program.

A feed mixer apparatus that includes a mixing chamber for receiving feed material, and having a mixing element situated therein for mixing the feed material; a transmission having a plurality of gears and connected with a mixing element; a plurality of mixing chamber sensors positioned to sense at least one of the volume and the level of feed material in the mixing chamber; a control unit having a display and a plurality of user inputs, wherein the control unit is in at least indirect communication with the transmission and the sensors, and wherein the control unit receives a plurality of outputs from one or more of the transmission and sensors, and based at least in part on the plurality of outputs, provides an output command to effectuate a gear change in the transmission.

A rotor assembly for a rotary mixer is disclosed. The rotor assembly includes a main drive configured to rotatably drive the rotor assembly, a main drive clutch enclosed in a drivetrain housing of the main drive, an actuation valve operably coupled to the main drive clutch, the actuation valve configured to actuate the main drive clutch between at least a first position and a second position, a rotor drum, a rotor drive gearbox having an input and an output, the gearbox output operably coupled to the rotor drum, a main drive belt rotatably coupled to the main drive clutch and the rotor drive gear box input such that a rotation of the main drive clutch imparts a rotation on the rotor drive gear box, and a speed sensor operably coupled to the rotor drum, the speed sensor measuring a rotational speed of the gearbox and generating a rotor speed signal, wherein based on when the rotor speed signal is below a predetermined rotor speed threshold the actuation valve is activated to rotate the main drive clutch a predetermined amount between the first position and the second position.

A mixer apparatus for mixing a high-viscosity fluid has a mixer shaft with a plurality of blades affixed thereto, a hydraulic motor drivingly connected to the mixer shaft so as to rotate the mixer shaft, a hydraulic pump connected by a fluid circuit to the hydraulic motor so as to deliver hydraulic fluid under pressure to the hydraulic motor, an electric motor drivingly connected to the hydraulic pump, and a hydraulic fluid reservoir connected to the fluid circuit so as to supply hydraulic fluid to the hydraulic pump. The plurality of blades are pivotally mounted to the mixer shaft.

According to one or more aspects, a specimen processing method may use a cartridge comprising a chamber configured to store a liquid. The method may include: storing a specimen and a dispersion medium in the chamber of the cartridge; and rotating the cartridge about a rotational shaft to agitate the specimen and the dispersion medium in the chamber, to thereby form an emulsion in which a dispersoid containing the specimen is dispersed in the dispersion medium.