The invention relates to a nozzle (10) for dispensing concrete, mortar or the like, comprising a housing (12) and a mixing chamber (14) which is arranged therein and is delimited by a circumferential wall (16) and extends along a longitudinal axis (L) at least between a supply opening (19) and an outlet opening (20); an actively driveable mixing device, which is arranged in the mixing chamber (14); and an exit opening (32), which is directly or indirectly flow-connected to the outlet opening (20) of the mixing chamber (14). At least one cavity (44; 44a, 44b), which extends axially and in the circumferential direction, is arranged around the circumferential wall (16) of the mixing chamber (14) and is in contact with the circumferential wall (16) and at least substantially surrounds the mixing chamber (14) in the circumferential direction. The circumferential wall (16) of the mixing chamber (14) consists of elastic material, which is adapted to deform dynamically into the at least one cavity (44; 44a, 44b) during operation of the nozzle. In this way, the formation of deposits on the circumferential wall (16) of the mixing chamber (14) is avoided.

A mobile twin shaft mixer is disclosed herein, as well as methods of using the same. A benefit to the mobile twin shaft mixer can be a compact, lightweight, high capacity twin shaft mixer useful for mixing, proportioning, and transporting construction materials in mobile operations. A benefit to the methods of use of the mobile twin shaft mixer can be the supply of modern construction materials to the delivery location at the point of installation.

A bag or liner can be sized to fit into a bucket, such as a five gallon bucket. The bag or liner can extend above the height of the bucket to form a funnel portion to assist in pouring material into the apparatus inside the bucket. The bag or liner can have graduations corresponding to volume of material poured into the bag or liner and bucket to assist in mixing ingredients of a material. The bag or liner can include a flat bottom wall and internal seams to conform to the bucket's shape. The bag or liner can include perforations to permit detachment of the funnel portion of the bag or liner. To enhance the preservation of mixed ingredients and the workability of the mixed ingredients, the bag or liner can include a re-sealable seam at a top opening of the funnel portion that permits evacuation of air enclosed by the bag or liner through a one-way valve that supports vacuum packaging. The bag or liner can include integral handles to allow easy removal of the bag or liner from the bucket.

A method and apparatus for a mobile twin shaft mixer, which includes a mixing chamber formed of a flexible sheath and a frame formed of a rigid material. A benefit to the mobile twin shaft mixer can be a compact, lightweight, high capacity twin shaft mixer useful for mixing, proportioning, and transporting construction materials in mobile operations. A benefit to the methods of use of the mobile twin shaft mixer can be the supply of modern construction materials to the delivery location at the point of installation.

The invention relates to a device (10) for inerting radioactive waste, comprising: a mixer (12) comprising a radioactive waste inlet (56), a conditioning unit able to house a container, a transfer member connecting the mixer and a container accommodated by the conditioning unit, a handling screw, the handling screw comprising: two ends, one end being connected to the radioactive waste inlet (56), a cradle elongated along an axis between the two ends and delimiting an inner volume, the inner volume of the cradle being able to accommodate matter toward the mixer (12), a transfer rotor, in particular a coreless screw, extending in the inner volume, and a motor able to rotate the transfer rotor.

The invention relates to a nozzle (10) for dispensing concrete, mortar or the like, comprising a housing (12) and a mixing chamber (14) which is arranged therein and is delimited by a circumferential wall (16) and extends along a longitudinal axis (L) at least between a supply opening (19) and an outlet opening (20); an actively driveable mixing device, which is arranged in the mixing chamber (14); and an exit opening (32), which is directly or indirectly flow-connected to the outlet opening (20) of the mixing chamber (14). At least one cavity (44; 44a, 44b), which extends axially and in the circumferential direction, is arranged around the circumferential wall (16) of the mixing chamber (14) and is in contact with the circumferential wall (16) and at least substantially surrounds the mixing chamber (14) in the circumferential direction. The circumferential wall (16) of the mixing chamber (14) consists of elastic material, which is adapted to deform dynamically into the at least one cavity (44; 44a, 44b) during operation of the nozzle. In this way, the formation of deposits on the circumferential wall (16) of the mixing chamber (14) is avoided.