The invention relates to a granular product discharge flap system which is employed in dosing systems, enables discharging very fine doses of the relevant materials without any losses of time and labor, and reduces assembly and disassembly times in cases of repair and maintenance requiring intervention in the system.

Washing equipment for a vehicle includes at least one gantry defining a track for the vehicle, at least one nozzle supported by the gantry and intended to spray a cleaning liquid on the vehicle, and a helical profile that creates a helical rotational movement of the cleaning liquid relative to the gantry. The helical profile is suitable for ensuring the rotation of the cleaning liquid around the axis of the stream of cleaning liquid leaving the nozzle.

A fully electric-drive sand-mixing apparatus comprises a foundation; and a suction pump, a suction pump driving electric motor, a suction manifold, a mixing stirrer, a mixing stirrer driving electric motor, a dry-ingredient-adding device, a dry-ingredient-adding device driving electric motor, a liquid-adding device, a liquid-adding device driving electric motor, a sand-conveying device, a sand-conveying device driving electric motor, a discharge pump, a discharge pump driving electric motor, a discharge manifold, a frequency converter placement room and an operation room, which are fixedly connected to the foundation. The suction pump driving electric motor, the mixing stirrer driving electric motor, the dry-ingredient-adding device driving electric motor, the liquid-adding device driving electric motor, the sand-conveying device driving electric motor and the discharge pump driving electric motor are fixedly and electrically connected to the suction pump, the mixing stirrer, the dry-ingredient-adding device, the liquid-adding device, the sand-conveying device and the discharge pump, respectively.

The present invention relates to a wine aerating device comprising a body member (10), adapted to hold a container (12) containing pressurized gas and a lance member (14) for diffusing pressurized gas into a wine to be aerated, the body member (10) being provided with a passage (102, 103, 121, 105, 104) for passing a flow of pressurized gas from the container (12) to the lance member (14), comprising a comprising a control mechanism (23) for providing a flow of pressurized gas from the body member (10) to the lance member (14) over a variable length of time, the duration of which can be manually set by a user, wherein the control mechanism (23) comprises a valve (24), the valve being adapted to be manually actuated by rotary movement of a collar (20) provided on body member (10).

A system for blending polymers and other chemicals in an aqueous liquid is provided. Static mixers and tubes, preferably in one or more tube bundles, provide a volume sufficient to allow a residence time in the system to hydrate a polymer. Static mixers may be integrated with a tube bundle. The system may be mounted on a portable base such as a trailer. The concentration of polymer and chemicals in water may be controlled by a controller. A variable speed electric pump may be utilized to precisely control the amount of polymers or other chemicals added to the aqueous liquid.

Embodiments of the present invention include a method and system for blending multi-component granular compositions such as proppant used in hydraulic fracturing in well drilling. The system includes the control and management of an on-site storage system for each of the components, regulating the delivery of specified quantities of each component to a well site, and coordinating the flow of materials into and out of the blender.

A matter displacement and mixing system having a mixing chamber for material to enter, and a vortex aperture that directs air into the mixing chamber at either a high velocity for violent shearing or lower velocity for gentle mixing. This would depend on the shape of the vortex aperture, or the pressure.

A system for blending polymers and other chemicals in an aqueous liquid is provided. Static mixers and tubes, preferably in one or more tube bundles, provide a volume sufficient to allow a residence time in the system to hydrate a polymer. Static mixers may be integrated with a tube bundle. The system may be mounted on a portable base such as a trailer. The concentration of polymer and chemicals in water may be controlled by a controller. A variable speed electric pump may be utilized to precisely control the amount of polymers or other chemicals added to the aqueous liquid.

A method for mixing at least two liquid components of a two- or multi-component wet coating system, wherein a feed component under a first hydraulic pressure set at constant is fed discontinuously through a variable passage cross-section to a parent component under a second hydraulic pressure set at constant. An actual feed quantity of the feed component is detected and the feed quantity of the feed component is regulated with respect to a target feed quantity for the feed component in such a way that a timing cycle of the discontinuous feed and the passage cross-section for the feed component are influenced.

Methods and apparatuses for additively manufactured tubular passages, additively manufactured manifolds, and additively manufactured heaters are provided.