This disclosure provides collector elements for gas circuits of additive manufacturing systems for making 3D components from a powder. The collector elements include an intake duct portion having a strip-shaped inflow duct with an intake opening and a main body portion that includes a cylindrical cavity extending along the intake duct portion, the cavity being fluidly connected to the inflow duct with a step in the rounded wall that causes an increase in diameter from a first diameter of the cavity to a second, larger diameter. The collector element also includes a first gas discharging portion with a tube portion and a diameter adjusting portion that fluidly connects a first end of the cavity to the inner volume of the tube portion via a duct.

A separation device (1) for separating particles from a fluid flow, comprising a centrifugal separator (2), wherein the centrifugal separator (2) comprises a separation chamber (3), a fluid inlet (5), at least two dip tubes (7, 7) and at least one particle discharge opening (9, 9) and the separation chamber (3) is substantially formed as a rotational body. The rotational body has a casing (13) and two end faces (15, 15), the fluid inlet (5) opening into the separation chamber (3) tangentially to the surface of the casing (13) and one dip tube (7) being situated in one of the end faces (15) and the other dip tube (7) being situated in the other end face (15).

A separation device (1) for separating particles from a fluid flow, comprising a centrifugal separator (2), wherein the centrifugal separator (2) comprises a separation chamber (3), a fluid inlet (5), at least two dip tubes (7, 7) and at least one particle discharge opening (9, 9) and the separation chamber (3) is substantially formed as a rotational body. The rotational body has a casing (13) and two end faces (15, 15), the fluid inlet (5) opening into the separation chamber (3) tangentially to the surface of the casing (13) and one dip tube (7) being situated in one of the end faces (15) and the other dip tube (7) being situated in the other end face (15).

Provided is a filter unit including: a cyclone body member which receives fluid introduced thereinto in one direction and has a circular internal sectional shape to form a rotational flow of the fluid; and a discharge member which is disposed on a central upper end portion of the cyclone body member and has a cross section, at least a part of which has a noncircular shape, so as to reduce the rotational flow and then discharge the fluid.

Provided is a filter unit including: a cyclone body member which receives fluid introduced thereinto in one direction and has a circular internal sectional shape to form a rotational flow of the fluid; and a discharge member which is disposed on a central upper end portion of the cyclone body member and has a cross section, at least a part of which has a noncircular shape, so as to reduce the rotational flow and then discharge the fluid.

Apparatus, such as a flotation separation device, features a flotation cell or column configured to receive a mixture of water, valuable material and unwanted material; receive polymer-based materials, including polymer bubbles or beads, configured to attach to the valuable material in the mixture; and provide enriched polymer-based materials, including enriched polymer bubbles or beads, having the valuable material attached thereon.

Apparatus, such as a flotation separation device, features a flotation cell or column configured to receive a mixture of water, valuable material and unwanted material; receive polymer-based materials, including polymer bubbles or beads, configured to attach to the valuable material in the mixture; and provide enriched polymer-based materials, including enriched polymer bubbles or beads, having the valuable material attached thereon.

A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attaching mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.

A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attaching mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.

Provided is a centrifuge media separator for separating blast particulate from fine particulate carried by air flowing from a blast cabinet and through the media separator. The centrifuge media separator comprises an upper panel, a lower panel, and an outer wall. The upper panel has a central opening formed therein. The outer wall is configured in a truncated logarithmic shape and which extends between the upper and lower panels. The outer wall has at least one particulate escape aperture formed therein. The upper panel, lower panel and outer wall collectively define a curvilinear air passageway having an inlet and an outlet. An air foil extends from the outer wall in to the air passageway. The distance than the air foil extends in to the air passageway is adjustable. The inlet is configured to allow a flow of air to enter the air passageway and circulate therethrough toward the outlet. The escape aperture is configured to exhaust the blast particulate out of the passageway. The central opening is configured to exhaust the fine particulate out of the passageway.