There is provided apparatus (301) for mixing contents of a receptacle, the apparatus comprising a rotary shaft (302) equipped at a proximal end with a connection for removable attachment to a means of providing rotation. The rotary shaft has a mixing element (303) fixedly connected at a distal end of the shaft opposite to said proximal end. The mixing element comprises at least two arms (304) at the distal most end of the shaft, a corkscrew neck (306) on the shaft and a collar (305) on the shaft positioned in between the at least two arms and the corkscrew neck. The at least two arms are configured in a first partially-open resting position and are moveable to a second fully-open operative position. The mixing element further comprises a blade (307) positioned across the shaft more proximally than the corkscrew neck.

This invention generally relates to a mixing at least one material with at least one other material within an in-line mixing device. In one example embodiment methods, apparatuses, and systems are described to treat, reuse or otherwise remediate dredged or raw material from bottom sediment or other sources through the mixture of raw material and another material such as a hardening agent into a homogenous material for contamination remediation, use as construction materials or other uses.

Disclosed is an apparatus and method for manufacturing high-performance concrete by introducing air into normal concrete and dissipating air, wherein high-performance concrete is formed in a manner in which bubbles, which are to be removed, are added in a large amount together with an admixture to pre-blended normal concrete so that the admixture is uniformly dispersed in the normal concrete using the ball-bearing effect of the bubbles, thus forming mixed concrete, and the mixed concrete is discharged using air at a high pressure of 5 atom or more to thereby shoot high-performance concrete of which the slump, remarkably increased due to the large amount of bubbles, is reduced to fall within the range of slump of normal concrete while dissipating excess air from the mixed concrete.

A concrete mixing carrier, comprising a vehicle chassis and a mixing drum provided thereon. A drum housing of the mixing drum is cubic, supported horizontally on the vehicle chassis, and able to form an unloading state where a front portion is higher and a rear portion is lower; the mixing drum forms a closed drum housing; a feed inlet and a discharge outlet are respectively provided on a rear end plate; a rotary inner drum formed by splicing movable blades is provided in the drum body, and adjacent movable blades have therebetween a movement margin for rotation; each strip-shaped movable blade is supported at both ends by paired rollers respectively; stirring blades overhang towards inside of the drum body, backs of back plates are provided with drive racks, and drive gears, mutually engaged with the drive racks, are provided at corresponding positions of the drum body using a supporting bracket.

A concrete mixing carrier, comprising a vehicle chassis and a mixing drum provided thereon. A drum housing of the mixing drum is cubic, supported horizontally on the vehicle chassis, and able to form an unloading state where a front portion is higher and a rear portion is lower; the mixing drum forms a closed drum housing; a feed inlet and a discharge outlet are respectively provided on a rear end plate; a rotary inner drum formed by splicing movable blades is provided in the drum body, and adjacent movable blades have therebetween a movement margin for rotation; each strip-shaped movable blade is supported at both ends by paired rollers respectively; stirring blades overhang towards inside of the drum body, backs of back plates are provided with drive racks, and drive gears, mutually engaged with the drive racks, are provided at corresponding positions of the drum body using a supporting bracket.

A method of curing concrete beginning with the acquisition of seedless hydro mulch material and incorporating the material into a material spraying device, mixing the material with water in the spraying device and spraying the material and water onto the surface of curing concrete. The spraying device includes a spray nozzle and pressurized air is introduced into the spray nozzle prior to the spraying of the material and water onto the curing concrete. The pressurized air may be provided to the spray nozzle at an air pressure of equal to or greater than 35 psi and less than or equal to 75 psi.

The present disclosure relates to a device for three-dimensional ink deposition from an impeller-driven active mixing microfluidic printing nozzle. The device is configured to receive a material property associated with the plurality of fluids and receive a structure property of the printing nozzle. The device then determines a threshold relation between a rotating speed of an impeller in the nozzle and a volumetric flow rate Q of fluids that flow through the nozzle based on the material property of the plurality of fluids, the structure property of the printing nozzle. Based on the threshold relation, the device then determines an actual volumetric flow rate of the fluids and actual rotation speed of the impeller.

A slurry dispense system utilizes a buffer chamber to release the pressure from the supply pump, and buffer the irregular flow rate of the supply pump. It also utilizes a positive displacement pump to control the dispense flow. With the help of the buffer chamber, the positive displacement pump is able to provide a constant flow rate, and can be accurately controlled. A high resolution and a high speed can be achieved at the same time.

A three-dimensional printing head including a dynamic mixer comprising a mixer casing, which delimits a mixing chamber, a supply inlet configured to supply the mixing chamber with a mineral composition and a discharge outlet; and an injector for injecting a building material admixture in the mixing chamber. The injector includes a tubular injecting member being flexible and having an injection outlet, the tubular injecting member being elastically deformable between a first state in which the tubular injecting member is configured to allow a flow of the building material admixture through the tubular injecting member and towards the injection outlet, and a second state in which the tubular injecting member is configured to prevent a flow of the mineral composition from the mixing chamber and through the tubular injecting member.

A kneader includes a drum and a battery case. An intake port for taking in material to be kneaded is formed in the drum. An accommodation part is formed in the battery case. An opening for inserting a removable battery, or for retrieving the removable battery, is formed in the accommodation part. The battery case is retained in the kneader while oriented in a manner other than an orientation in which the opening faces the drum.