Abstract:
An in-line powder dispersion apparatus (10), comprises a pneumatic inlet (102) having a first line aperture, a mixing chamber (106) placed pneumatically downstream from the pneumatic inlet, at least a first gas injection port (108) having an inlet responsive to a mixing gas outlet of a mixing gas source and a mixing outlet that opens into the mixing chamber, and a pneumatic outlet (104) placed pneumatically downstream from the mixing chamber and having a second line aperture. The apparatus may further comprise a mixing gas source having a mixing gas outlet.
Abstract:
A mixer (100) for a continuous flow reactor (330) and methods for forming the mixer and the operation thereof. The mixer allows for segmentation of a primary reactant flow through a plurality of ports (124) into many smaller flows that are injected as jets into a secondary reactant flow in channels of the mixer. The channel (126) has a constant width dimension to enhance even flow distribution and local, turbulence of the primary and secondary reactant flows. The constant width dimension of the channel and the size and number of the ports of the mixer can be configured to ensure the primary reactant flow injected into the channel directly impinges on a surface (116) of the channel that is opposite the injection point at normal operating conditions.
Abstract:
Eine Mischvorrichtung zur Vermischung einer Trockenfertigmischung/Wasser-Suspension mit einem pulverförmigen Erstarrungsbeschleuniger hat eine Mischdüse (2) mit einem Einlaßkanal (3), an den eine Suspensionszuleitung (4) angeschlossen ist, durch die hindurch der Mischdüse (2) die Trockenfertigmischung/Wasser-Suspension zuführbar ist und einem, Plempenkanal (5), an den eine Zufuhrleitung (7) angeschlossen ist, durch die hindurch der Mischdüse (2) der pulverförmige Erstarrungsbeschleuniger zuführbar ist. Zur Sicherung einer den Anforderungen an einen schnell aushärtenden Baustoff genügenden Durchmischung der Trockenfertigmischung/Wasser-Suspension mit dem pulverförmigen Erstarrungsbeschleuniger weist die erfindungsgemäße Mischvorrichtung eine Treibluftzufuhrleitung (18) auf, die an den Einlaßkanal (3) der Mischdüse (2) angeschlossen ist und in Strömungsrichtung der Trockenfertigmischung/Wasser-Suspension stromauf einer Vereinigungsstelle des Einlaßkanals (3) und des Plempenkanals (5) der Mischdüse (2) angeordnet ist.
Abstract:
An apparatus for mixing fluids within a pipe is provided. In one embodiment, the apparatus includes a fluid mixing device (14) with a pipe (24) having a pipe wall and an axial bore (50) for conveying fluids through the pipe. The fluid mixing device also includes a sleeve (28) disposed about the pipe and a cavity (42) provided between an exterior surface of the pipe and an interior surface of the sleeve. The cavity and the axial bore of the pipe are in fluid communication with one another via an opening (48) through the pipe wall. Additional systems, devices, and methods are also disclosed.
Abstract:
A loop dissolution system specifically suited for dissolving uranium compounds in an acidic bath that continually circulates the acid over the uranium compound to be dissolved. The dissolution system includes an upper material feed dissolution plate on which the material to be dissolved is fed, a lower mixing and dissolution ring and a drop pipe system connecting and establishing fluid communication between the upper material feed dissolution plate and the lower mixing and dissolution ring. A pump for circulating the acidic fluid has an intake from the lower mixing and dissolution ring and an outlet that directs a first portion of a fluid to the upper material feed dissolution plate and a second portion of the fluid back into the lower mixing and dissolution ring to circulate the material suspended in the fluid within the lower mixing and dissolution ring to promote turbulence and facilitate dissolution.
Abstract:
Die Erfindung betrifft ein Verfahren zur Einmischung von einem oder mehreren Fluiden (2, 3), von denen zumindest ein Fluid (2, 3) wenigstens teilweise von einer Chemikalie gebildet wird, in einen von einer Kanalwand (5) begrenzten Hauptstrom (1). Dabei soll eine möglichst schonende und umfassende Vermischung mit der Chemikalie dadurch erreicht werden, dass die Vermischung der Fluide (2, 3) mit dem Hauptstrom (1) durch eine, über die Eindüsung mindestens eines Turbulenz-Fluids (4) in den Hauptstrom (1) erzeugte Turbulenzzone (7) des Hauptstroms (1) unterstützt wird.
Abstract:
Die Erfindung betrifft ein Verfahren zum Mischen und Dosieren fester Dosiergüter (Z, B), wie wenigstens eine Zerealie (Z), insbesondere eine festkörperartige, teilchenförmige, quellfähige Zerealie (Z), und/oder wenigstens eine andere kleinstückige Beimengung (B), in eine Trägerflüssigkeit (TF), mit dem ein Gemisch (G) aus der Trägerflüssigkeit (TF) und dem wenigstens einen festen Dosiergut (Z, B) hergestellt wird sowie eine Vorrichtung zur Durchführung des Verfahrens. Dies wird gemäß dem vorgeschlagenen Verfahren dadurch erreicht, dass das wenigstens eine feste Dosiergut (Z, B) jeweils in Form eines stetigen Volumenstroms des wenigstens einen festen Dosiergutes (Q*) ausgeprägt ist, und dass der Volumenstrom Luft (Q L ), in Strömungsrichtung zum vorgelegten Volumen (V) gesehen, auf den stetigen Volumenstroms des wenigstens einen festen Dosiergutes (Q*) derart trifft, dass der Volumenstrom Luft (Q L ) als Durchmischungs-, Trocknungs-, Austrag- und Trägermedium für das jeweilige wenigstens eine feste Dosiergut (Z, B) fungiert
Abstract:
A multilayer microfluidic module (10) contains a micromixer (12) comprising, in order along an internal fluid path (14), a first fluid channel (16) lying within a first layer (51) of the module (10) along a first direction (15) with the first layer having a lower boundary (21); at least one additional fluid channel (17) lying within the first layer (51) of the module (10) along an additional direction (19); a first injection passage (20) extending from a first injection passage inlet (22) in the lower boundary (21) of the first layer (51) of the module (10) through a second layer (52) of the module (10) to a first injection passage outlet (24), the first injection passage inlet (22) being fluidically connected to the first fluid channel (16) and to the additional fluid channel (17) either individually through the lower boundary (21) of the first layer (51) or via a manifold (25) within the first layer (51); and a second fluid channel (26) lying within a third layer (53) of the module (10), the third layer (53) having an upper boundary (30), the second fluid channel having a width W 26 ; wherein the first direction (15) and the additional direction (19) are non-collinear, and wherein the first injection passage outlet (24) is centered within the second fluid channel (26) in the direction of the width W 26 , and has a length L 24 along the second fluid channel (26) and a width W 24 in the direction of the width W 26 , and wherein the width W 24 is narrower than the width W 26, and wherein the first injection passage outlet (24) has a length-to-width ratio L 24 / W 24 of greater than 1:1.
Abstract:
A particle pulverizer capable of suppressing the wear of parts, comprising two flow passages (8a) and (8a) positioned on an approximately same straight line and having outlets disposed so as to be close and opposed to each other and through−holes (9) and (9) provided at any positions of the flow passages and having diameters smaller than the diameters of the flow passages, wherein liquid injected from one through−hole (9) does not reach the other through−hole (9).
Abstract:
A device and method for dispensing precise amounts of dry particulate matter directly into a liquid carrier stream. The device includes a bin (40) for holding a quantity of particulate matter, a conduit (78) for transporting a stream of liquid carrier, and a meter (42) at the bottom of the bin for controllably releasing a desired amount of the particulate matter from the bin into the conduit while disallowing entry of the liquid carrier to the bin. The bin (42), conduit (78) and meter (42) are mounted upon a portable structure for transportation with particulate matter in the bin (40). The meter (42) includes a multi-vaned rotor (54) of known volume. The operator simply connects the device to a flow of water and keys into the controller (38) an amount of material to be released. The rotor (54) releases the material into a chamber under vacuum pressure generated by a venturi (72), through a check valve (74), and into an eductor.