A method and a device for air injection into a vinification tank (1) use air injection nozzles (2) installed therein. A rule is applied for automatic variation of injections with time, by a coordinated and combined action of the nozzles, so that for each of the installed nozzles the delivered air jets may be modulated in duration and frequency and combined with the jets delivered by the other nozzles according to a programmable sequence.

Disclosed are a stirring process and a stirring system for a neodymium-iron-boron powder and a process for manufacturing a neodymium-iron-boron magnetic steel. The stirring process for the neodymium-iron-boron powder mainly comprises the following aeration, feeding and stirring. Specifically, the aeration refers to filling a mixer with nitrogen and/or an inert gas, with the internal space of the mixer closed; the feeding refers to placing a neodymium-iron-boron powder to be stirred into the mixer and keeping the internal space of the mixer closed; and the stirring refers to introducing the mixer with a pulsed air stream, which is an intermittently jetted air stream formed by nitrogen and/or an inert gas, and by which the neodymium-iron-boron powder can be repeatedly blown up and down to mix and stir the neodymium-iron-boron powder.

A method and equipment for the pressurized injection of air or other gases in a controlled manner into wine making tanks or similar for the purpose of efficiently breaking up the cap and extracting polyphenolic and aromatic compounds from the skins to the liquid portion (must) after the crushing of the grapes using the method for pumping over the grape harvest during the maceration thereof.

A method and a device for air injection into a vinification tank (1) use air injection nozzles (2) installed therein. A rule is applied for automatic variation of injections with time, by a coordinated and combined action of the nozzles, so that for each of the installed nozzles the delivered air jets may be modulated in duration and frequency and combined with the jets delivered by the other nozzles according to a programmable sequence.

A method and a device for air injection into a vinification tank (1) use air injection nozzles (2) installed therein. A rule is applied for automatic variation of injections with time, by a coordinated and combined action of the nozzles, so that for each of the installed nozzles the delivered air jets may be modulated in duration and frequency and combined with the jets delivered by the other nozzles according to a programmable sequence.

A method for draining fermenting must from a fermentation tank comprises: a) breaking into chunks a cap that forms in the tank while must ferments in the tank, b) after breaking the cap, mixing the must to homogenize the must and reduce the size of the cap chunks to a size that can pass through a drain of the tank, and c) opening the drain in the fermentation tank to remove the must from the tank. Breaking the cap into chunks includes: a) injecting gas into the must to form a bubble in the must, b) moving the bubble through the must to generate a flow of must within the fermentation tank, and c) shearing a surface of the cap with the generated flow to break the cap into chunks Mixing the must to reduce the size of the cap chunks includes: a) injecting gas into the must to form a bubble in the must, and b) moving the bubble through the must to mix the must.

A control circuit for automatically stopping the flow of a gas in a primary circuit, includes a valve, a sensor and a controller. The valve is couplable with a primary pressure-regulator that controls the flow of another gas in a primary circuit. The valve has an inlet operable to receive a gas and an outlet operable to distribute the gas. The sensor is positionable in the primary circuit and operable to sense a parameter of the flow of the gas in the primary circuit and generate a signal that represents the sensed parameter. The controller is operable to receive the sensor's signal and, in response to the signal, direct the valve to close if the parameter of the flow of gas in the primary circuit lies outside of a predetermined range.

The invention relates to a method and equipment for the pressurised injection of air or other gases in a controlled manner into wine making tanks or similar for the purpose of efficiently breaking up the cap and extracting polyphenolic and aromatic compounds from the skins to the liquid portion (must) after the crushing of the grapes using the method for pumping over the grape harvest during the maceration thereof.

A device for stirring at least one liquid includes a fluidics module rotatable about an axis of rotation, a liquid chamber for the liquid within the fluidics module, an introducer for introducing mutually separate phase volumes of a phase different from the liquid, said phase volumes having a different density than the liquid, into the liquid within the liquid chamber, and a driving device for subjecting the fluidics module to such a rotation that the phase volumes are moved radially inward or outward in relation to the axis of rotation through the liquid due to the different density of the phase volumes and of the liquid and due to the centrifugal forces caused by the rotation.

A technique is provided for incorporating pneumatic control in centrifugal microfluidics. The technique involves providing a chip controller that has pressurized fluid supply lines for coupling one or more pressurized chambers of the controller with ports of a microfluidic chip. At least part of the chip controller is mounted to a centrifuge for rotation with the chip. A flow control device is provided in each supply line for selectively controlling the pressurized fluid supply, and is electrically controlled. Bubble mixing, on and off-chip valving, and switching are demonstrated.