The invention relates to mixing elements with a reduced structural depth for static mixers, to static mixers comprising at least two mixing elements with a reduced structural depth, and to a method for mixing fluids using a mixing element with a reduced structural depth or a static mixer comprising at least two mixing elements with a reduced structural depth. In the mixing elements, the thickness of the transverse strut at its thickest point is maximally 0.9 to 1.1 times the thickness of the webs multiplied by the cosine of half the opening angle O divided by the sine of the whole opening angle O.

An eductor type gas to gas aspirator having improved entrainment efficiency includes a motive gas nozzle configured with a distal tip having an arcuate internal profile that converges in a downstream direction. The arcuate internal profile preferably has sinusoidal convergence curvature. In a preferred embodiment, the length L.sub.s of the nozzle tip is between 2D and 4D where D is the diameter of said outlet orifice, and the distance L.sub.d between nozzle outlet orifice and the upstream end of and out let barrel passage is between 0 and D.

A stirring paddle for isothermal titration calorimetry includes a blade secured to one end of a shaft. The blade has an edge and a pair of opposing surfaces. A lip extends from the edge and forms a non-zero angle with respect to the opposing surfaces. In some embodiments, the blade has a twisted rectangular shape defined by a pair of first opposing edges and a pair of second opposing edges. One of the first opposing edges is oriented at a rotation angle with respect to the shaft axis that is different than an orientation of the other first opposing edge with respect to the shaft axis. Advantageously, the stirring paddle achieves improved turbulent mixing of injections into liquid within a sample cell, resulting in shorter measurement times. The improved mixing efficiency allows the stirring paddle to be operated at a lower rotation rate.

A seed treatment system incorporates an incline conveyor to mix freshly treated seed. A metered seed flow is maintained. A treatment applicator positioned above a tail end of the incline conveyor applies a seed treatment to the metered seed flow to form a treated seed flow. The treated seed flow freefalls into a transition zone and pre-mixes before moving upward within the incline conveyor. An eddy may form within the treated seed flow due to a partial obstruction within the incline conveyor. A prescribed amount of the treated seed flow backflows into the eddy in a cascading manner. Backflow movement may be contrary to conveyance of a substantial amount of the treated seed up through the incline conveyor. The seed treatment distributes about the treated seed flow within the incline conveyor. The treated seed flow discharges with complete cleanout at a head end of the incline conveyor.

Provided herein are methods and compositions utilizing one or more cementitious replacement materials, one or more alkaline activating materials, and, optionally one or more bonding materials and/or one or more setting time enhancer materials. The one or more cement precursors comprises one or more of calcareous sludge; paper pulp, biomass flyash; bag house dust; biomass sludge; filter cakes from bio industry's and wastewater treatment; bio ash; biomedical ash; agricultural ash; sugar cane bagasse; rice husk ash; palm oil fuel ash; oxygen furnace slags; plant stalks; bio char; starch; pyrophyllite; or a combination thereof. The one or more alkaline activating agents comprises potassium silicate, potassium hydroxide, sodium hydroxide, sodium silicate, calcium hydroxide, magnesium hydroxide, reactive magnesium oxide, calcium chloride, sodium carbonate, silicone dioxide, sodium aluminate, calcium sulfate, sodium sulfate, or dolomite, or a combination thereof. The system comprises a vertical impact mixer.

Reducing blinking pixels in a display includes detecting a first timing of activation of one or more emissive elements of the display, detecting a second timing of sensing pulses from a sensor arranged to detect radiation transmitted through the display, determining, based on the first timing and the second timing, a synchronized timing that staggers the activation of the one or more emissive elements of the display and the sensing pulses from the sensor, and dynamically altering, based on the determined synchronized timing, a subsequent timing of the sensing pulses from the sensor to reduce blinking of at least some of the pixels compared to blinking associated with the synchronized timing.

The present application discloses an impeller assembly and a mixing apparatus, and relates to the technical field of solid and liquid mixing devices. The impeller assembly includes an impeller structure and a housing structure. The impeller structure includes a body, and a surface of the body is provided with a plurality of backward-skewed blades. A blade angle of each backward-skewed blade on any flow plane first decreases progressively and then increases progressively from an inlet to an outlet. A first baffle is disposed on a lower portion of the body. The housing structure includes a second baffle. The first baffle is provided with first guide slots, and the second baffle is provided with second guide slots. A fluid enters from the inlet at an upper portion of the body, flows along the surface of the body, and flows out through the outlet at a lower portion of the body and through the first guide slots and the second guide slots. A centerline of each first guide slot is deflected towards a direction opposite to a rotation direction of the impeller structure, and a centerline of each second guide slot is deflected towards the rotation direction of the impeller structure. The present application solves the problems of unstable discharge, large vibration and noise, and insufficient work efficiency.

A mixing chamber for mixing a variety of dry ingredients with a liquid is disclosed. The mixing chamber has an accumulation chamber that evenly distributes ingredients as they pass a liquid spray nozzle, resulting in uniform hydration. The liquid may be sprayed at a variety of pressures to achieve varying levels of granule hydration to permit the manufacture of dough, batter, or other compositions. Even dry ingredients which are generally slow to absorb moisture may be rapidly and evenly hydrated without an excess of liquid. Process parameters, such as volume flow rate of the dry ingredients, can also be varied.

A process for solvent extraction of bitumen from mined oil sand ore is provided, comprising mixing the mined oil sand ore with at least one solvent to produce a solvent/oil sand slurry; adding water to the solvent/oil sand slurry to produce a slurry having a water-to-solids mass ratio of less than about 0.1; mixing the slurry in a mixing tank having a diameter to agglomerate the solids present in the slurry, the mixing tank operating at a power input of between 20 and 50 W/kg of slurry, to produce an agglomerated slurry; and subjecting the agglomerated slurry to solid-liquid separation to produce a first liquids stream containing bitumen and a first solids stream; whereby the slurry height in the mixing tank is 0.1 to 0.3 of the tank diameter.

A hand blender containing a blade arrangement for a domestic appliance for cutting and comminuting food containing a rotatable blade with a hub which lies at a center of rotation of the blade for receiving a shaft. The blade includes at least one cutter which extends radially and which has a cutting edge that lies on a front side in the rotational direction and defines a circular cutting zone when circulating. The blade also includes a milling rib which protrudes upwards from the blade in an axial direction and is oriented so as to produce a milling effect when circulating and defines a corresponding milling zone that extends from the hub to the cutting zone of the cutter.