An assembly adapted for incorporation within, and use with, a rotary tubular vessel is disclosed. The assembly includes two oppositely directed finned disks, each defining a central aperture, of a particular size. The assembly includes a collection of longitudinally extending plates that extend between the disks. Upon installation in a tubular vessel, the assembly governs and controls the flow of granular or particulate material through the vessel.

An active material recovery apparatus includes a heat treatment bath and a screening wall extending along a first axis. The heat treatment bath includes a heating zone and the screening wall includes a cooling zone. The active material recovery apparatus includes an exhaust injection and a degassing system. The heat treatment bath is configured to remove a binder and a conductive material in an active material layer and to perform heat treatment in air on an electrode scrap including the active material layer on a current collector. The screen wall is configured to recover the active material in powder form. The active material recovery apparatus is configured to separately recover the current collector that does not pass through the screening wall. The heat treatment bath includes protrusions in a sawtooth shape on a first cross-section orthogonal to the first axis.

A process and an apparatus are disclosed for improved recovery of metal from hot and cold dross, wherein a dross-treating furnace is provided with a filling material with capacity to store heat. This filling material is preheated to a desired temperature by injection of an oxidizing gas to burn non-recoverable metal remaining in the filling material after tapping of the recoverable metal contained in the dross and discharging of the treatment residue. When dross is treated in such furnace, the heat emanating by conduction from the filling material is sufficient to melt and separate the recoverable metal contained in the dross, without addition of an external heat source, such as fuel or gas burners, plasma torches or electric arcs and without use of any salt fluxes. Furthermore, the recovered metal being in the molten state can be fed to the molten metal holding furnace without cooling the melt.

A process and an apparatus are disclosed for improved recovery of metal from hot and cold dross, wherein a dross-treating furnace is provided with a filling material with capacity to store heat. This filling material is preheated to a desired temperature by injection of an oxidizing gas to burn non-recoverable metal remaining in the filling material after tapping of the recoverable metal contained in the dross and discharging of the treatment residue. When dross is treated in such furnace, the heat emanating by conduction from the filling material is sufficient to melt and separate the recoverable metal contained in the dross, without addition of an external heat source, such as fuel or gas burners, plasma torches or electric arcs and without use of any salt fluxes. Furthermore, the recovered metal being in the molten state can be fed to the molten metal holding furnace without cooling the melt.

A rotary kiln comprises: a sintering device provided with a cylindrical rotation tube for mixing an input powder raw material while rotating in a horizontal direction; an external heating device for heating the powder raw material input into the rotation tube by heating the outside of the rotation tube; and an internal heating device for stirring and heating the powder raw material input into the rotation tube simultaneously. The internal heating device includes a microwave generation part for generating microwaves; a guide part for guiding the microwaves generated from the microwave generation part into the rotation tube; and a stirring heat generation part coupled to an inner circumferential surface of the rotation tube for stirring the powder raw material input into the rotation tube and simultaneously generating heat when absorbing the microwaves so as to heat the powder raw material.

A horizontal pyrolysis furnace has a kiln and two barrels. The two barrels are respectively a processing barrel rotatably disposed in the kiln and a takeover barrel detachably connected with the processing barrel. Each one of the two barrels has a gate assembly and at least one spiral guiding plate. The gate assembly of the processing barrel is mounted on an end of the processing barrel, and extends out from the kiln. The two gate assemblies of the two barrels are detachably connected such that the two barrels are able to rotate synchronously. The at least one spiral guiding plate is fixed on an inner surface of one of the two barrels, and the spiral guiding plates of both barrels have an identical helical direction.

The present invention relates to a system for backmix the reagent mass in rotating cylindrical reactors. In this context, the present invention provides a system for internal backmix of the reagent mass in a rotating cylindrical reactor (2), comprising a first set of drag fins (27) adapted for dragging the reagent mass in a first direction, and a second set of drag fins (28) adapted for dragging the reagent mass in a second direction opposite to the first direction, wherein the first (27) and the second (28) set of drag fins are positioned internally along the length of the cylindrical rotating reactor (2). The system described above allows the mixing of a portion of the reagent mass at a more advanced stage of the reactor with another portion at an earlier stage of processing, homogenizing the reagent mass temperatures and increasing the reactor's productivity.

The present invention relates to a system for backmix the reagent mass in rotating cylindrical reactors. In this context, the present invention provides a system for internal backmix of the reagent mass in a rotating cylindrical reactor (2), comprising a first set of drag fins (27) adapted for dragging the reagent mass in a first direction, and a second set of drag fins (28) adapted for dragging the reagent mass in a second direction opposite to the first direction, wherein the first (27) and the second (28) set of drag fins are positioned internally along the length of the cylindrical rotating reactor (2). The system described above allows the mixing of a portion of the reagent mass at a more advanced stage of the reactor with another portion at an earlier stage of processing, homogenizing the reagent mass temperatures and increasing the reactor's productivity.

An anti-segregation mixer for a bed of material, the anti-segregation mixer comprising: an elongate and substantially cylindrical shell having an inner surface; and a plurality of independent lifting means provided within the shell, wherein the plurality of lifting means each comprise a vane with a leading end and a trailing end, and are arranged with respect to the cylindrical shell such that the vane is spaced apart from the inner surface and the entire lifting means may pass through the bed of material.

A process and an apparatus are disclosed for improved recovery of metal from hot and cold dross, wherein a dross-treating furnace is provided with a filling material with good capacity to store heat. This filling material is preheated to a desired temperature by injection of an oxidizing gas to burn non-recoverable metal remaining in the filling material after tapping of the recoverable metal contained in the dross and discharging of the treatment residue. When dross is treated in such furnace, the heat emanating by conduction from the filling material is sufficient to melt and separate the recoverable metal contained in the dross, without addition of an external heat source, such as fuel or gas burners, plasma torches or electric arcs and without use of any salt fluxes. Furthermore, the recovered metal being in the molten state can be fed to the molten metal holding furnace without cooling the melt; in addition, the non-use of fluxing salt for the treatment means that the non-contaminated residue can be used as a cover for the electrolytic cells in the case of aluminum. In the case of zinc dross, the residue is a valuable zinc oxide by-product very low in contaminants.