This invention relates to a particle extractor assembly 10, 100 which is used to extract and collect dust and/or other airborne pollutants from a workface. The assembly 100 is mobile as is mounted to a base 12 which includes a first platform 12.1 and a second pivotal platform 12.2 which is articulated to the first platform 12.1 and is configured to be pivotally displaced relative to the first platform between a lowered position and a discharge position in which it is inclined with respect to the first platform 12.1. The assembly also includes a vacuum pump 150 powered by an electrical motor 160, a particle filter 200 to filter out particles upstream of the vacuum pump and a drum arrangement which includes a collector drum 170 configured to rotate about an axis to mix its contents to form a slurry and it discharge the contents when in the discharge position.

A rotating drum apparatus for the mixing and processing of materials, the rotating drum apparatus comprising: a rotating drum (12) arranged with the length of the drum and the axis of rotation of the drum extending along the horizontal; an inlet at a first point on the drum (12) for receiving materials prior to mixing and/or processing; a screw (14) within the drum (12) for mixing the materials whilst conveying them lengthwise along the drum (12), wherein the screw (14) includes a helical blade extending along the length of the drum (12) with the outer edge of the helical blade being fixed to the inner surface of the drum (12) such that material can be conveyed and mixed in separated volumes (16) between each turn of the screw blade (14); an outlet at a second point along the drum for discharge of materials after mixing and/or processing; and a plurality mixing devices (18) for promoting mixing of the material in each of the separated volumes (16) of material as the material is conveyed along the screw (14), wherein the plurality of mixing devices (18) are spaced apart along the blade of the screw (14), and wherein there is at least one mixing device (18) for each turn of the screw blade (14).

An improved blending apparatus for manufactured wood products with a rotating blending drum or cylinder with a pattern of alternating flights of different configurations extending from the interior of the drum. The flights lift the strands as the drum rotates to different heights before the strands free-fall back to the bottom of the drum. One flight is shorter, and may be trapezoidal in cross-section. The second flight is taller, and may have a bull-nose configuration with substantially vertical sides. During operation, the design of the bull-nose flight tends to hold more strands and to carry them closer to the top of the drum before the strands drop and fall. In contrast, the shorter height and angled sides of the trapezoidal flight tends to hold fewer strands and to not carry them as high along the side before strands drop and fall. The alternating pattern causes a more consistent and dispersed fall of strands as the drum rotates, resulting in a significantly larger and more consistent amount of the sprayed adhesives and waxes being applied to the strands, and not passing through gaps to build up on the drum wall.

Apparatus for mixing a particulate material with a liquid in a container adapted for tumble blending, the apparatus comprising a mixing device (2) and a liquid injection nozzle (3), the mixing device including mixer elements (4) adapted to mix a particulate material by mechanical action, characterised in that the nozzle (*) is disposed to direct liquid in the direction of the mixer elements when mixing is taking place, there being means to prevent ingress of material into the nozzle.

A drum coater for applying a surface layer on bulk-like materials includes a rotatably mounted drum for accommodating bulk-like materials, inlet and outlet openings, at least one spray nozzle for applying the surface material, a drying device for a drum interior, at least first and second radially-offset mixing tools in the drum, the first mixing tool protruding into the drum interior. The at least one second mixing tool has at least one mixing surface such that the first mixing tool is at least partially arranged on the drum inner surface and the at least one second mixing tool has at least one opening on the at least one mixing surface. A mixing tool to be used in a drum coater to gently blend and/or homogenize bulk-like materials has a first mixing surface angled relative to a second mixing surface, at least one mixing surface having at least one opening.

A device for wetting particles, in particular wood particles, with an application agent, at least one conduit transporting a fluid as a fluid stream and an end section which forms an outlet. The fluid can be introduced in the direction of the main flow into a container containing the particles, via the outlet. The particles are in the container in a loosened state and/or can be loosened. The application agent, for spraying by a nozzle device with a speed component directed against the main flow direction, can be introduced into the fluid stream and can be guided to the particles by the fluid stream.

There is provided a purification apparatus that packages two apparatuses that respectively perform separation treatment and purification treatment into a single apparatus, to reduce a size of the apparatus and facilitate easier transportation to the site, and to improve a treatment amount of contaminated earth and sand per unit time. The purification apparatus includes a drum rotatable around an axis, a sieve having a cylindrical shape and being fixedly accommodated in the drum, a first blade having a spiral shape and being provided between the drum and the sieve, and the second blade having a spiral shape and being provided in the sieve. In the purification apparatus, soil charged into the sieve is separated with the sieve, only the contaminated earth and sand are gathered in a treatment tank between the drum and the sieve, and a chemical agent is introduced into the treatment tank for the purification treatment.

Method and device for preparing a paste by blending or mixing materials, in particular for making aluminum production electrodes. The method includes the following operations: a) introducing the materials to be blended or mixed into a vat (31) having an inner surface extending along a substantially horizontal axis of revolution (X), b) rotating the vat (31) about the axis of revolution (X) and urging the materials via centrifugation against the inner surface of the vat (31), and c) locally dislodging the centrifuged materials from the inner surface by rotating the vat (31) and causing same to fall onto a crumbling tool (40).

A horizontal mixer (50) is disclosed. Multiple blades (92) are affixed to and rotate with a tumbler (80) of the mixer (50). These blades (92) extend within an interior mixing chamber (90) and are center-angled so as to promote a desirable mixing action within this chamber (90) (e.g. so as to fold a slurry within the chamber (90) onto itself). One characterization is that the blades (92) are oriented so as to direct a flow toward a common outlet region (78) within the tumbler (80) throughout at least a certain rotational angle. The mixer (50) is particularly suited for realizing a desirable homogeneity of particles within a slurry from which radioisotopes may be produced.

An improved blending apparatus for manufactured wood products with a rotating blending drum or cylinder with a pattern of alternating flights of different configurations extending from the interior of the drum. The flights lift the strands as the drum rotates to different heights before the strands free-fall back to the bottom of the drum. One flight is shorter, and may be trapezoidal in cross-section. The second flight is taller, and may have a bull-nose configuration with substantially vertical sides. During operation, the design of the bull-nose flight tends to hold more strands and to carry them closer to the top of the drum before the strands drop and fall. In contrast, the shorter height and angled sides of the trapezoidal flight tends to hold fewer strands and to not carry them as high along the side before strands drop and fall. The alternating pattern causes a more consistent and dispersed fall of strands as the drum rotates, resulting in a significantly larger and more consistent amount of the sprayed adhesives and waxes being applied to the strands, and not passing through gaps to build up on the drum wall.