The present invention relates to fluidic devices, especially microfluidic devices, for aliquoting and pairwise combinatorial mixing of a first set of liquids with a second set of liquids. The device architecture is designed to move liquids in two separate phases, a first phase where the liquids are exposed to a first directional force field to move the liquids in a first direction, from a reservoir to aliquot chambers, and a second phase where the liquids are exposed to a second directional force field to move the liquids in a second direction, from the aliquot chambers to the mixing chambers. The first and second directional force fields that the device is exposed to may be achieved using a single directional force field (i.e. a rotor driven centrifugal force field) and by re-orienting the position of the device with respect to the centrifugal forces between the first and second phases of operation. The device architecture comprises reservoirs for each of the first fluids and reservoirs for each of the second fluids. Each reservoir is fluidically connected to aliquoting chambers, either arranged in parallel or in series, for providing aliquots of the fluid which may be metered. The conduits providing fluid communication between the reservoirs and aliquoting chambers are arranged in a first direction. A series of mixing chambers is also provided, and each mixing chamber is fluidically connected to one aliquot chamber for a first liquid and one aliquoting chamber for a second liquid. The conduits providing fluid communication between the aliquoting chambers and mixing chambers are arranged in a second direction.

In one configuration, a hydroponic system for enriching a liquid with gas-bubbles is disclosed. The system may include at least one reservoir configured to temporarily store the gas-bubble enriched liquid. Each of the at least one reservoir may include an associated inlet port and an associated outlet port fluidically coupled with each other via a liquid-flow line. The system includes one or more pumps configured to cause movement of the liquid along the liquid-flow line, a gas supply feeding a gas (in one configuration, oxygen from a gas concentrator), and a gas-bubble generator provided on the liquid-flow line. The gas-bubble generator may be fluidically coupled to the gas supply to receive gas from the gas supply. The gas-bubble generator may be configured to generate a plurality of individual gas-bubbles of the gas received from the gas supply and mix with the liquid stream flowing via the gas-bubble generator.

The present invention discloses a feeding system that comprises a plurality of material tanks having air outlets, a plurality of blowers, a dust remover having an air inlet, and a connecting pipe. Air inlets of the plurality of blowers are in communication with the air outlets of the material tanks in one-to-one correspondence. The first end of the connecting pipe is in communication with the air inlet of the dust remover, and the second end of the connecting pipe is movable between being connected with the air outlet of a first one of the plurality of blowers and being connected with the air outlet of a second one of the plurality of blowers. The disclosed feeding system a simple structure and zero dust leakage. Also disclosed is a glass production apparatus that comprises the disclosed feeding system.

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.

A feeding and blending apparatus for a system for continuous processing of powder products comprises at least two system inlets for powder products; and at least two feeding and dosing devices arranged in a row. Each of the at least two feeding and dosing devices comprises, an inlet being connected with a system inlet, at least one feeder, at least one actuator configured to operate the at least one feeder, and an outlet being connected with an inlet of the powder blending device. A separation wall is configured to separate a process area from a technical. Process components of the at least two feeding and dosing devices are positioned in the process area and technical components of the feeding and dosing devices are positioned in the technical area. Connections between the at least one actuator and the at least one feeder pass through the separation wall.

Preloading a plurality of feed types of a feed mix for livestock in a mixing plant. Feed types are conveyed towards a mixer. Bunkers selectively discharge one of the feed types on a loading conveyor. A controller controls a preloading weight of the feed types to be discharged onto the loading conveyor. Feed types are individually discharge onto dump spots of the loading conveyor at the bunkers and terminate when a predetermined total weight is reached or interrupt when a maximum preloading capacity is reached or feed reaches the end of the loading conveyor. Feed types may be individually discharged from the bunkers onto the dump spots and the main component loaded into the mixer by a loading vehicle, such that the weight of the main portion and the weight of the supplemental portion add up to a programmed total weight of the main component.

An electrically driven oilfield blender system is configured to utilize electric motors as electric prime movers to prepare frac slurry and move the frac slurry to an oilfield pressure pumping system or pressure pumper that pumps the frac slurry into a subterranean formation. Each of the prime mover electric motors may operate at a fixed or constant rated speed and may be connected to a transmission that can drive a device such as a feed pump for a mixing tub or an auxiliary device at a variable speed. An electro-hydraulic motor start system includes an electric motor that powers a hydraulic pump. The hydraulic pump drives hydraulic motors that pre-rotate the prime mover electric motors to their rated speeds before they are energized.

A fluid mixing device includes inlet ports in fluid communication with respective source containers, an inlet check valve, a mixing container in fluid communication with the inlet check valve, a discharge port in fluid communication with a target container, and a discharge check valve in fluid communication with the mixing container and the discharge port. Responsive to a negative pressure at the mixing container, fluid is drawn from the respective source containers through the inlet ports and through the inlet check valve and into the mixing container, while the discharge check valve precludes drawing of fluid from the target container. Responsive to a positive pressure at the mixing container, fluid is expelled from the mixing container through the discharge check valve and into the target container, while the inlet check valve precludes discharge of fluid from the mixing container to the inlet ports and the source containers.

Systems and methods for recovering dry bulk material from a blender at a job site are provided. The systems include at least one container having in which dry bulk material can be placed and a skid-mounted vacuum unit comprising a tank having an interior space and an outlet for interfacing with the inlet of the container when the vacuum unit is positioned proximate to the container, a vacuum pump in communication with the interior space of the tank, and a conduit coupled to an inlet of the vacuum pump for interfacing with an inlet of a blender.

The technology of the present application provides a flex or flexible tint system for stains. In certain aspects, the system comprises a known volume of an unpigmented stain and a colorant cartridge of containing a known volume of colorant. The colorant cartridge has a movable bottom and a discharge nozzle at the top. The movable bottom is movable along the colorant cartridge to consistently deliver a known discharge volume of colorant to the known volume of unpigmented stain. The colorant and unpigmented stain are mixed to achieve a stain of the desired color consistently.