A mixer for mixing and degassing fluids includes a revolution device having a revolution base to be driven for rotation; a first spin device connected to the revolution base of the revolution device; a first barrel connected to the first spin device to be spun by the first spin device; an transmitting coil electrically connected to a power source to generate a time-vary magnetic field; and a receiving coil connected to the revolution base of the revolution device and electrically connected to the first spin device, wherein the receiving coil rotates with the revolution base. The receiving coil receives the power from the time-vary magnetic field of the transmitting coil and produces an electromotive force to be supplied to the first spin device.

A bladeless mixer for mixing a liquid, includes a cylindrical or truncated cone-shaped receptacle having an axis A and a radius R, the radius R being the shortest distance between the axis A and a side wall of the receptacle, the liquid to be mixed being placed in the receptacle and having an exposed surface at a height H measured along axis A; a member for tilting the receptacle such that axis A forms a non-zero-degree angle of up to 30° relative to the vertical direction; a member for imparting a rotational movement to the receptacle along axis A at an angular speed of rotation Ω; wherein the aspect ratio H/R of the height H to the radius R and the angular speed of rotation Ω are selected such that an inherent mode of inertia of the liquid has an unstable resonance when the receptacle is tilted and rotates.

A mixing drum includes a body defining a head aperture and a discharge aperture opposite the head aperture, a head coupled to the body and extending across the head aperture, and a mixing element positioned within the volume and coupled to the body. The head and the body define a volume. The body is formed from at least a first section and a second section. The first section overlaps the second section.

A mixing device includes a mixing container rotatable about a first axis of rotation for receiving mixing material, which has a mixer opening and a mixer cover which can be reciprocated between an opened position and a closed position. The mixer cover in the closed position closes the mixer opening and in the opened position exposes the mixer opening. The mixing container is rotatably mounted to a machine stand. The mixer cover is so fixed to the machine stand that the mixing container in the closed position of the mixer cover is rotatable relative to the mixer cover about the first axis of rotation. The machine stand has a stationary element and a pivotal element, wherein the pivotal element is mounted pivotably about a pivot axis relative to the stationary element. The mixing container is mounted rotatably to the pivotal element and the mixer cover is fixed to the pivotal element.

A mixing drum includes a body defining a head aperture and a discharge aperture opposite the head aperture, a head coupled to the body and extending across the head aperture, a bearing member coupled to the body and defining a bearing surface surrounding the body, and a mixing element positioned within the volume and coupled to the body. The head and the body define a volume configured to contain a fluid mixture. The mixing element is configured to drive the fluid mixture toward the head when the drum is rotated in a first direction. The mixing element is configured to drive the fluid mixture towards the discharge aperture when the mixing drum is rotated in a second direction opposite the first direction. The head is made from a first material, and the body is made from a second material having a lesser density than the first material.

A system features an acoustic sensor configured to mount on a wall of a mixing drum, sense an acoustic characteristic of a mixture of a slurry, including concrete, contained in a mixing drum when rotating, and provide acoustic sensor signaling containing information about the acoustic characteristic sensed; and a signal processor configured to receive the acoustic sensor signaling, and determine corresponding signaling containing information about a slump characteristic of the mixture of concrete contained in the mixing drum, based upon the signaling received.

An apparatus for producing hot mix asphalt from 100% recycled pavement aggregates includes a rotatable inclined drum having a central axis and having a first and second end. A heat source spaced from one of the ends introduces hot gas into the drum via one of the first and second ends. An aggregate supply introduces aggregate into the drum through one of the first and second ends. A RAP collar spaced from the ends and positioned around the drum is used to introduce sand through openings beneath the collar into the drum as the drum is rotated. The RAP collar has an annular heat and smoke shield fastened around the drum for minimizing escape of hot gas from the drum openings beneath the RAP collar. The drum has replaceable buckets within the openings for receiving, holding and distributing sand into the drum as the drum rotates about its axis.

A flight assembly comprising a flight with a curved outer edge portion and a support supporting the flight at an acute angle with respect to a longitudinal axis of the flight assembly, wherein the curved outer edge portion when rotated about the longitudinal axis describes a cylinder. The flight assembly is configured to cooperate in a system for blending flowable solid materials, comprising a cylindrical drum body, a drum roller apparatus arranged support and rotate the cylindrical drum body at an angle of inclination and a flight assembly as previously described. Associated methods are also disclosed.

A mixer for mixing and degassing fluids includes a revolution device having a revolution base to be driven for rotation; a first spin device connected to the revolution base of the revolution device; a first barrel connected to the first spin device to be spun by the first spin device; an transmitting coil electrically connected to a power source to generate a time-vary magnetic field; and a receiving coil connected to the revolution base of the revolution device and electrically connected to the first spin device, wherein the receiving coil rotates with the revolution base. The receiving coil receives the power from the time-vary magnetic field of the transmitting coil and produces an electromotive force to be supplied to the first spin device.

A mixing drum includes a body defining a head aperture and a discharge aperture opposite the head aperture, a head coupled to the body and extending across the head aperture, and a mixing element positioned within the volume and coupled to the body. The head and the body define a volume. The body is formed from at least a first section and a second section. The first section overlaps the second section.