A device and a method for rounding a graphite material includes a feeding device for feeding the graphite material to the device; a plurality of rounding tools designed to revolve while rotating, which are arranged at the outer circumference of a disc rotating about a rotational axis and in a rotational direction; at least one guide apparatus; a separating device for separating fine material and superfine material; and a product outlet. Furthermore, provision is made such that a cover ring is arranged above the rounding tools.

A device and a method for rounding a graphite material includes a feeding device for feeding the graphite material to the device; a plurality of rounding tools designed to revolve while rotating, which are arranged at the outer circumference of a disc rotating about a rotational axis and in a rotational direction; at least one guide apparatus; a separating device for separating fine material and superfine material; and a product outlet. Furthermore, provision is made such that a cover ring is arranged above the rounding tools.

The present invention refers to an accelerating cyclone that separates solid particles, comprising in its general structure a lower conical body (1) (17A and 17B), comprising a lower opening (18), a central cylindrical body (2) immediately above the conical body (1) whose diameter is smaller than the largest diameter of the conical body cone (1), and a third upper, also cylindrical, body (3) of smaller diameter than the diameter of the central cylindrical body (2), comprising a side opening for the acceleration air output (5); where the cylindrical central body (2) allows to accelerate the speed of the solid material particles and is the cyclone pressure chamber; and where said cylindrical central body (2) comprises a side opening for the acceleration air input (8) and at least one duct (9).

The present invention refers to an accelerating cyclone that separates solid particles, comprising in its general structure a lower conical body (1) (17A and 17B), comprising a lower opening (18), a central cylindrical body (2) immediately above the conical body (1) whose diameter is smaller than the largest diameter of the conical body cone (1), and a third upper, also cylindrical, body (3) of smaller diameter than the diameter of the central cylindrical body (2), comprising a side opening for the acceleration air output (5); where the cylindrical central body (2) allows to accelerate the speed of the solid material particles and is the cyclone pressure chamber; and where said cylindrical central body (2) comprises a side opening for the acceleration air input (8) and at least one duct (9).

A separator having a separator housing, a separator wheel arranged inside the separator housing and having an axis of rotation (X), and a guide vane assembly arranged in the separator housing, an annular space being provided between the guide vane assembly and the separator housing radially (R) perpendicular to the axis of rotation (X) and a separation zone being provided between the guide vane assembly and the separator wheel, and the guide vane assembly having a plurality of vertical guide vanes. In order to increase separation performance, at least one deflecting element is arranged between at least two adjacent vertical guide vanes and has at least one downward-pointing curved and/or bent portion.

A separator having a separator housing, a separator wheel arranged inside the separator housing and having an axis of rotation (X), and a guide vane assembly arranged in the separator housing, an annular space being provided between the guide vane assembly and the separator housing radially (R) perpendicular to the axis of rotation (X) and a separation zone being provided between the guide vane assembly and the separator wheel, and the guide vane assembly having a plurality of vertical guide vanes. In order to increase separation performance, at least one deflecting element is arranged between at least two adjacent vertical guide vanes and has at least one downward-pointing curved and/or bent portion.

A classifier wheel (2) for a classifier device (1) for classifying milled comminuted product, in particular of particulate bulk material, is disclosed herein. The classifier wheel (2) includes classifier wheel blades (5), which are arranged in the radially outer region of the classifier wheel (2), and vane surface elements (8), which are arranged radially spaced apart from the classifier wheel blades (5) in the radially inner region of the classifier wheel (2). A method of classifying milled comminuted products and a use of vane surface elements (8) for classifying milled comminuted products are also disclosed.

A classifier wheel (2) for a classifier device (1) for classifying milled comminuted product, in particular of particulate bulk material, is disclosed herein. The classifier wheel (2) includes classifier wheel blades (5), which are arranged in the radially outer region of the classifier wheel (2), and vane surface elements (8), which are arranged radially spaced apart from the classifier wheel blades (5) in the radially inner region of the classifier wheel (2). A method of classifying milled comminuted products and a use of vane surface elements (8) for classifying milled comminuted products are also disclosed.

A device for separating particles contained in a gas stream for selective additive manufacturing and a selective additive manufacturing apparatus are disclosed. The device comprises at least one dry-type aeraulic separator comprising a separating turbine, a speed of rotation of which is variable. The dry-type aeraulic separator selects the particles contained in the gas stream according to a particle size depending on the speed of rotation of the separating turbine. The device also comprises a device for extracting the particles. The dry-type aeraulic separator and the extraction device are in fluidic communication such that a gas stream exiting the dry-type aeraulic separator circulates through the extraction device and such that the gas stream exiting the extraction device circulates through the dry-type aeraulic separator. The device also comprises a device for circulating the gas stream between the dry-type aeraulic separator and the extraction device.

A device for separating particles contained in a gas stream for selective additive manufacturing and a selective additive manufacturing apparatus are disclosed. The device comprises at least one dry-type aeraulic separator comprising a separating turbine, a speed of rotation of which is variable. The dry-type aeraulic separator selects the particles contained in the gas stream according to a particle size depending on the speed of rotation of the separating turbine. The device also comprises a device for extracting the particles. The dry-type aeraulic separator and the extraction device are in fluidic communication such that a gas stream exiting the dry-type aeraulic separator circulates through the extraction device and such that the gas stream exiting the extraction device circulates through the dry-type aeraulic separator. The device also comprises a device for circulating the gas stream between the dry-type aeraulic separator and the extraction device.