This fine particle production method involves a dissolving step in which a stirrer having a rotating stirring blade is used to dissolve at least one type of fine particle raw material in a solvent to obtain a fine particle raw material solution, and a precipitation step in which the fine particle raw material solution and at least one type of precipitation solvent for precipitating the fine particle raw material from the fine particle raw material solution are introduced between at least two treatment surfaces which are arranged oppositely one another, can move closer to and farther apart from one another, and at least one of which can rotate relative to the other, and the fine particle raw material solution and the at least one type of precipitation solvent are mixed in a thin film fluid formed between the at least two treatment surfaces, and the fine particles are precipitated. The stirring energy is determined by the stirring time conditions of the stirrer, the circumferential velocity conditions of the stirring blade, and the temperature conditions of the fine particle raw material solution, and in the dissolving step, the stirring energy is varied by changing at least one of the aforementioned conditions, and by changing the stirring energy, the degree of crystallization and the crystal form of the fine particles obtained in the precipitation step are controlled.

A personal formulation device for mixing and dispensing customized formulations from ingredient reservoirs carried by the device. The device may include a plurality of miniaturized progressive pumps with a flexible coupling between the motor and the pump. The coupling may include a spring (40). The device may include a spacer sleeve (62) having an internal diameter tapered to closely follow the motion envelope of the spring (40). Each pump may include a retainer (60) that is threaded into the interior of the pump body (52) to retain the spacer sleeve (62) and the drive end (120) of the rotor (34). Each pump may include a stator with an integrated flange seal (36). The flange seal (36) may extend around the circumference of the stator and be sandwiched between portions of the pump body (52). The stator may have a noncircular shape that keys the stator within the pump body. The pump may include an optical metering system.

Provided is an emulsion matrix ground station with intrinsic safety, which relates to the technical field of emulsion matrix preparation process and apparatus of mobile ground auxiliary equipment in civil explosive industry. The emulsion matrix ground station may include a water phase tank, an oil phase tank, a water phase pump, an oil phase pump and a static emulsification device. The water phase pump may have an inlet connected to an outlet of the water phase tank by a pipeline, and an outlet connected to a water phase inlet of the static emulsification device by a pipeline. The oil phase pump may have an inlet connected to an outlet of the oil phase tank by a pipeline, and an outlet connected to an oil phase inlet of the static emulsification device by a pipeline.

A microfluidic device and method is provided for concentrating particles in a fluid sample. The microfluidic device has a chamber, wherein the chamber has a filtering unit defining a first compartment and a second compartment, the first compartment being in fluid communication with the second compartment and being for receiving a fluid sample containing particles, the filtering unit being configured to selectively retain particles of the fluid sample based on a size of the particles, at a sub-region of the first compartment as the fluid sample flows from the first compartment to the second compartment; and an acoustic transducer configured to generate acoustic waves in the sub-region to disperse the particles.

The invention relates to a diffusor for adding of gases into water, said diffusor comprising a perforated tube (1) and at least one supply tube (2), said the at least one supply tube (2) is at one end coupled to a source for supplying gas and at the other end in fluid communication with the perforated tube (1), the gas is supplied to the perforated tube (1) through at least one inner supply tube (4; 5; 15) extending from the supply tube (2) to the perforated tube (1). The invention is distinctive in that at the least one inner supply tube (4; 5; 15) is a non-perforating tube and has at least one outlet (4a, 5a, 15a) situated at a free end of the at least one inner supply tube (4, 5, 15), said gas is adapted to be distributed into the perforated tube (1) through the at least one outlet (4a, 5a, 15a).

A device, method, and system for precision measurement, dispensing, and mixing of ingredients. The device includes an ingredient container and a base unit. The ingredient container includes a dispensing mechanism selectively driven to dispense the ingredients from a lower aperture thereof. The base unit includes at least one drive motor, a mixing mechanism, and a dispensing aperture extending through the base unit and configured to allow the quantity of ingredients dispensed from the ingredient container to pass through the base unit to a removable mixing bowl. The base unit may selectively operate in a dispensing mode that drives the dispensing mechanism and in a mixing mode that drives the mixing mechanism to rotate a mixing component removably coupled to the base unit and configured to extend into the removable mixing bowl for mixing the quantity of the ingredients dispensed from the ingredient container into the removable mixing bowl.

A disposable container, such as a deformable bag, for a fluid, having one or more inlets and one or more outlets and an impeller assembly within the container to cause mixing, dispersing, homogenizing and/or circulation of one or more ingredients contained or added to the container. The region within the container that can contain liquid is funnel shaped, which allows very low fluid level mixing, dispensing while mixing, and a reduction or elimination of vortex formation.

An application device for materials, in particular adhesives, including at least one cartridge receiving device for receiving a replaceable cartridge which contains a material and has a material outlet opening; a rotary device for metering or mixing the material, rotary device having a first engagement element; a drive device for driving the rotary device, the drive device having a rod which is mounted in a rotatable and axially movable manner and has a second engagement element at the end face; and a gearing unit for driving the rod in order to bring the first and the second engagement element into engagement with each other.

A mixing device, in particular for bone cement, in which at least two ampoules provided with a septum are pushed onto needles, in parallel to each other, for discharging the liquid.

Methods and a slaker for removal of heavy grit during batchwise slaking of burnt lime in a slaker (2) for the production of lime slurry with a high degree of fineness and prolonged sedimentation time are described, where the following processing steps are carried out during the slaking process: a)—reduction of the stirring of the slaker (2) from a normal stirring speed to a lower stirring speed, b)—opening of an upper inlet valve (60) in a collector (70) mounted in the lower part (54) of the slaker (2) to lead sinking grit in the slurry batch to the collector (70), whereupon the upper inlet valve (60) is closed after a given time period, c)—increase the stirring in the slaker (2) back to the normal stirring speed, d)—after a given time period with normal stirring speed, a regulating valve (22) in the lower part (54) of the slaker (2) is opened for emptying of a batch of slurry to an external storage tank (3), and e)—when said regulating valve (22) is opened for emptying of a batch of slurry, a lower outlet valve (62) in the collector is optionally opened for emptying of collected grit.