A dynamic mixer dispense valve and metering apparatus suitable for use in mixing and applying high viscosity, disparate viscosity, high ratio and/or relatively immiscible two part compounds that exhibit short cure times includes a housing supporting a pair of valve assemblies each coupled to respective sources of base and accelerator components. A pair of pneumatic valve actuator s control the operation of the valve assemblies to control the flow of components into a mixing chamber. Within the mixing chamber a mixer impeller is rotatably supported and coupled to a source of rotational power. An additional pneumatic valve actuator combination operates a further flow control to prevent undesired material loss following a shot cycle.

The invention pertains generally to an improved fluid dispensing device, particularly a dispensing device which employs at least one hemispherical domed cannister source of reactants and which uses a color-changing dispensing plastic tip to inform the end-user if the reactants are at a proper use temperature.

A system for printing biomaterials can include a mixer having a longitudinal axis. The mixer can define a flow channel that extends along the longitudinal axis. The mixer can have at least one inlet configured to receive a first printable biomaterial and a second printable biomaterial and an outlet spaced from the inlet along the longitudinal axis. One or more mixing elements positioned within the flow channel between the inlet(s) and the outlet of the mixer. The mixing element(s) can be configured to control a spatial distribution of the first and second printable biomaterials across and along the longitudinal axis.

The present disclosure relates to a mixer having a mixer housing which encloses a mixing chamber, an input part which can be connected to the mixer housing and has at least two input openings for the components to be mixed, and a mixing element, at least some sections of which extend into the mixing chamber, wherein each of the input openings is flow-connected to the mixing chamber via at least one input duct, wherein there is also in the input part at least one compensation duct which connects the input openings to each other, and/or at least one holding chamber is provided in the mixing element.

The present invention relates to a mixing assembly for controlling mixing of green liquor and a flocculation agent, the mixing assembly comprising a mixing vessel (20) having a first end and a second end, a vessel inlet (21) for supplying liquor and flocculation agent to the mixing vessel in a vicinity of the first end, a vessel outlet (22), a stirring device (31) that is rotatably arranged in the vicinity of the first end for mixing the liquor and flocculation agent by stirring, wherein the mixing vessel (20) has a length from a center of the vessel inlet to a center of the vessel outlet, and the mixing vessel also has a maximum width that is perpendicular to the length, and wherein said length is at least 1.5 times the maximum width. The invention also relates to a method for controlling flocculation of green liquor.

An entry mixing element is provided for mixing an incoming fluid flow having first and second unmixed components arranged so as to define a transverse flow cross-section perpendicular to a flow direction. The entry mixing element includes a central axis configured to be aligned with the flow direction of the incoming fluid flow, and an entry dividing wall extending parallel to the central axis and positioned to divide the incoming fluid flow into first and second fluid flow portions, each portion containing an amount of the first component and an amount of the second component. The entry dividing wall is configured to divide the incoming fluid flow into the first and second fluid flow portions in any rotational orientation of the entry mixing element about its central axis relative to the transverse flow cross-section of the incoming fluid flow. Related static mixers and methods of mixing are also provided.

The invention pertains generally to an improved fluid dispensing device, particularly a dispensing device which employs at least one hemispherical domed canister source of reactants and which uses a color-changing dispensing plastic tip to inform the end-user if the reactants are at a proper use temperature.

A flow shifter baffle for mixing a fluid flow having at least two components, a static mixer, and method of mixing are described. The flow shifter baffle includes a double divider wall element adjacent to a leading edge and a plurality of occluding walls coupled to the double divider wall element. The double divider wall element includes first and second generally parallel walls which extend across the entire transverse flow cross-section. The double divider wall element is configured to divide the fluid flow into a central flow portion and first and second peripheral flow portions. This division of the fluid flow using the double divider wall element and the plurality of occluding walls improves the mixing of separate components by producing a greater number of layers with less jumbling of the layers, when a layered composition of multiple components is delivered into the flow shifter baffle.

A mixing device (10) containing a housing (20) that defines a mixing chamber (30), an A-component feed channel entrance opening (40), a B-component feed channel entrance opening (50), and air feed channel entrance opening (60), and an exit opening (70) where the feed channel entrance openings and exit opening provide fluid communication into and/or out of the mixing chamber, and a static mixing element (80) housed within the mixing chamber between the three entrance feed channels and the exit opening, wherein the air feed channel entrance opening having a cross sectional area that is 0.7 square mm or greater and 7.7 square mm or less.

A spray gun for a plural component system is provided. The spray gun includes a first component delivery line and a second component delivery line. The spray gun also includes a nozzle, configured to receive and mix a first component received from the first component delivery line with a second component received from the second component delivery line. The spray gun also includes an air purge system configured to, when the spray gun is in a non-actuated position, purge the nozzle of the first and second components and, when the spray gun is in an actuated position, aid in atomization of the mixture of the first and second components.