A stirrer includes a shaft, and a plurality of stirring blades mounted on the shaft along a longitudinal direction of the shaft. The stirrer is configured to stir molten glass in a stirring vessel by causing the plurality of stirring blades to turn about the shaft in association with rotation of the shaft. The plurality of stirring blades (blade bodies) each have a through opening and a distal end portion extending along the longitudinal direction of the shaft. The plurality of stirring blades are mounted on the shaft so that, when the plurality of stirring blades turn about the shaft, the stirring blades that are closer to one end side of the shaft are delayed in phase around the shaft with respect to the stirring blades on another end side of the shaft.

Various embodiments herein pertain to apparatus and methods that utilize the water and existing chemicals to generate a foam. The foam can be introduced at that gas-path entrance of the equipment, where it contacts the stages and internal surfaces, to contact, scrub, carry, and remove fouling away from equipment to restore performance. Some embodiments include mixing gas with liquid to create a supply of foam, streaming the foam into a gas turbine engine installed on an airplane, rotating the spools of the engine while streaming, and re-rotating the spools of the engine after a spool has stopped. In yet other embodiments there is a method that includes streaming the foam into an engine installed on an airplane, quantifying an improvement to a family of engines achievable by foam washing, operating a specific engine, determining that the specific engine should be washed, and scheduling a foam washing of the specific engine.

Provided is a highly efficient pipe-type flocculation mixer, comprising: a feeding pipe, a mixing pipe, a discharging pipe and a mixer. The feeding pipe, the mixing pipe and the discharging pipe are disposed in parallel and sequentially communicated. The mixing pipe is a circular pipe and has two blind ends. The mixer comprises a driving motor, a mixing blade and a central shaft. One end of the central shaft is coupled to the driving motor, and another end of the central shaft is coupled to the mixing blade. The size of the mixing blade enables the mixing pipe to exactly accommodate the mixing blade. Also provided is a feeding-mixing device, wherein an agent can be introduced into a hollow central shaft via an agent feeding chamber, and be sprayed out from the central shaft into a mixing chamber; said agent feeding manner enables sufficient mixing.

A mixing apparatus has a chemical moving part, a motor, a paddle, and a plate. The chemical moving part is configured to receive and output a chemical in a pipe. The motor is configured to rotatably drive a shaft coupled to the motor at a first end of the shaft. The shaft defines a central rotational axis. The paddle is connected to a second end of the shaft and configured to rotate with the shaft. The plate is configured to secure the motor to the pipe and has a first side facing the motor and a second opposite side facing a projection of the paddle. The first side defines a first length extending in a direction perpendicular to the shaft and the second side defines a second length extending in a direction perpendicular to the shaft. The first length is greater than the second length.

A size of an agitating mechanism can be reduced. An agitating mechanism according to an aspect of the present disclosure is an agitating mechanism for agitating fluid flowing through inside a pipe, including: a rotary body placed inside the pipe so as to be able to rotate in a circumferential direction of an inner circumferential surface of the pipe; and a regulation part configured to regulate a movement of the rotary body in a longitudinal direction of the pipe. The rotary body includes a hollow part penetrating the pipe in the longitudinal direction of the pipe and an agitating blade provided in the hollow part.

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.

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.

An apparatus configured to process foodstuff materials can include an exterior tube, an inner shaft, and multiple differently shaped protrusions. The exterior tube can have a foodstuff inlet, an outlet, and a longitudinal axis, and can be configured to facilitate the conveyance of foodstuff materials along a material passage from the foodstuff inlet to the outlet. The inner shaft can be located within the exterior tube, can extend along the longitudinal axis, and can combine with the exterior tube to define the material passage. The inner shaft can be configured to be rotationally driven. The multiple differently shaped protrusions can be coupled to and extend from the inner shaft, and these differently shaped protrusions can be configured to process the foodstuff materials when the inner shaft is rotationally driven. Processing can include conveying, agitating, and/or hydrating the foodstuff materials.

Embodiments include a device for continuous virus inactivation during a protein production process comprising a first and a second fluid inlet, a first mixer, and a fluid outlet. A first liquid stream containing a target protein is introducible into the device through the first fluid inlet and is combinable in a predefined volume ratio with a second, virus-inactivating liquid stream introducible into the device through the second fluid inlet to form a third, reactive liquid stream which is conducted through the first mixer for mixing in order to generate predefined, virus-inactivating conditions. The device further comprises a head part and, downstream of the first mixer and upstream of the fluid outlet, a residence time arrangement fluidically connected to the head part for provision of a minimum residence time of the third stream, wherein the head part and the residence time arrangement are rigidly fastened to each other.

A system and method for stirring molten material such as glass are provided. To prevent sagging of a cover of a stirring system, a portion where deformation or sagging may significantly occur is suspended by a suspension system, so that local sagging and deformation of the cover is suppressed. As a result, a crack which may occur in the cover is suppressed, and therefore, contamination of the molten material is likewise suppressed.