A separating device for separating different material fractions out of a feed-material mixture having a flow channel, which has a slope, extends in parallel with the direction of gravity in particular in its main longitudinal extension direction and comprises an inner chamber. The separating device has a first end region, a second end region, a material inlet region intended for feeding the feed-material mixture into the inner chamber of the flow channel, an outlet through which an air stream containing a lightweight material can exit the flow channel, at least one conveying means that conveys air through the flow channel, and a cross-flow device that has a separation chamber and an air intake that leads into said chamber and through which the cross-flow device can introduce air into the separation chamber in a flow direction extending at an angle to the main longitudinal extension direction of the flow channel.

An operating method for a separator for classifying, wherein superheated steam is supplied to the separator as separating gas, and wherein the temperature of the superheated steam as separating gas is selected to be so low that in particular no condensation of the superheated steam occurs in the separator. Further, a separator for classifying, wherein the separator includes a separating gas supply including a water infeed for generating superheated steam as separating gas, and wherein adjusting or regulating means for the temperature of the superheated steam are provided as separating gas and are designed in such a way that the temperature of the superheated steam as separating gas is adjusted to be so low that in particular no condensation of the superheated steam occurs in the separator.

An operating method for a separator for classifying, wherein superheated steam is supplied to the separator as separating gas, and wherein the temperature of the superheated steam as separating gas is selected to be so low that in particular no condensation of the superheated steam occurs in the separator. Further, a separator for classifying, wherein the separator includes a separating gas supply including a water infeed for generating superheated steam as separating gas, and wherein adjusting or regulating means for the temperature of the superheated steam are provided as separating gas and are designed in such a way that the temperature of the superheated steam as separating gas is adjusted to be so low that in particular no condensation of the superheated steam occurs in the separator.

A dedusting apparatus removes dust and debris from particulate material flowing over the surface of a wash deck formed with steps and incorporating an air knife engaging the flow of particulate material as the material drops from one wash deck level to another. An ionizing wire is placed at each step on the wash deck so that the air knife blows negative ions from the ionizing wire into the particulate material falling off the step onto the level of wash deck below the ionizing wire. The wash deck is formed with openings to allow air to blow through the wash deck surface and remove dust and debris from the flow of particulate material. The wash deck can be constructed from modules supported on one another in a manner to present an overhang at each step. The wash deck can be formed from a flat pattern as a unitary bent structure.

A dedusting apparatus removes dust and debris from particulate material flowing over the surface of a wash deck formed with steps and incorporating an air knife engaging the flow of particulate material as the material drops from one wash deck level to another. An ionizing wire is placed at each step on the wash deck so that the air knife blows negative ions from the ionizing wire into the particulate material falling off the step onto the level of wash deck below the ionizing wire. The wash deck is formed with openings to allow air to blow through the wash deck surface and remove dust and debris from the flow of particulate material. The wash deck can be constructed from modules supported on one another in a manner to present an overhang at each step. The wash deck can be formed from a flat pattern as a unitary bent structure.

The invention relates to a screening device and a method for screening powders. The device comprises a screening space comprising a first chamber and a second chamber, which chambers are arranged adjacent and have a common partition wall. The device comprises a screen which is placed obliquely or vertically in the screening device, wherein the screen forms at least a part of the common partition wall. The first chamber comprises a raw material inlet, a drive gas inlet, a float gas unit, and a residual particle outlet. The second chamber comprises a product material outlet and a rotatable blade, wherein the blade comprises nozzles which are configured for blowing gas against the screen. In addition, the invention relates to an assembly comprising a first and second screening device, wherein the product material outlet of a first screening device is connected to the raw material inlet of the second screening device.

The invention relates to a screening device and a method for screening powders. The device comprises a screening space comprising a first chamber and a second chamber, which chambers are arranged adjacent and have a common partition wall. The device comprises a screen which is placed obliquely or vertically in the screening device, wherein the screen forms at least a part of the common partition wall. The first chamber comprises a raw material inlet, a drive gas inlet, a float gas unit, and a residual particle outlet. The second chamber comprises a product material outlet and a rotatable blade, wherein the blade comprises nozzles which are configured for blowing gas against the screen. In addition, the invention relates to an assembly comprising a first and second screening device, wherein the product material outlet of a first screening device is connected to the raw material inlet of the second screening device.

A separating device for separating different material fractions out of a feed-material mixture having a flow channel, which has a slope, extends in parallel with the direction of gravity in particular in its main longitudinal extension direction and comprises an inner chamber. The separating device has a first end region, a second end region, a material inlet region intended for feeding the feed-material mixture into the inner chamber of the flow channel, an outlet through which an air stream containing a lightweight material can exit the flow channel, at least one conveying means that conveys air through the flow channel, and a cross-flow device that has a separation chamber and an air intake that leads into said chamber and through which the cross-flow device can introduce air into the separation chamber in a flow direction extending at an angle to the main longitudinal extension direction of the flow channel.

A separating device for separating different material fractions out of a feed-material mixture having a flow channel, which has a slope, extends in parallel with the direction of gravity in particular in its main longitudinal extension direction and comprises an inner chamber. The separating device has a first end region, a second end region, a material inlet region intended for feeding the feed-material mixture into the inner chamber of the flow channel, an outlet through which an air stream containing a lightweight material can exit the flow channel, at least one conveying means that conveys air through the flow channel, and a cross-flow device that has a separation chamber and an air intake that leads into said chamber and through which the cross-flow device can introduce air into the separation chamber in a flow direction extending at an angle to the main longitudinal extension direction of the flow channel.

A system to automate the separation of agricultural products. The system includes an enclosure, sealed with permeable mesh to permit airflow and walled with non-porous material to prevent agricultural material from escaping the enclosure while allowing for flow to pass freely. This system is capable of separating material without mechanical interaction, such as with grippers or end effectors, and relies on air flow through the enclosure to create separation between the desired and undesired material using ballistic coefficient as a fundamental differentiator between constituent material of the agricultural products. This is accomplished with a variable speed fan which blows air through the enclosure, lifting and separating material based on the ballistic coefficient of that material and the flow settings. Dividers are used to separate and capture the products for retrieval at the conclusion of operation.