The rotor of the invention has two legs fastened to a rotary base, wherein the legs are provided with asymmetrically arranged boreholes facing upwards and boreholes facing downwards, wherein the boreholes facing upwards have the shape of an ellipse, while the boreholes facing downwards have a circular shape. The boreholes facing upwards and the boreholes facing downwards are formed, such that the jets from the boreholes facing upwards act vertically upwards and the jets from the boreholes facing downwards act vertically downwards, i.e., in a direction 90° with respect to the axis of the legs.

The rotor of the invention has two legs fastened to a rotary base, wherein the legs are provided with asymmetrically arranged boreholes facing upwards and boreholes facing downwards, wherein the boreholes facing upwards have the shape of an ellipse, while the boreholes facing downwards have a circular shape. The boreholes facing upwards and the boreholes facing downwards are formed, such that the jets from the boreholes facing upwards act vertically upwards and the jets from the boreholes facing downwards act vertically downwards, i.e., in a direction 90° with respect to the axis of the legs.

A stem screening and conditioning device includes a roller, a thermal insulation cover, a spiral feeding device, a compressed-air cleaning device, a steam tube, a discharge hole, and a waste hole. A stem screening and conditioning method for the stem screening and conditioning device is also provided. The present disclosure realizes the complete separation of normal-size and undersized stems under the premise of full moisture absorption, thereby improving the refinement and homogenization level of stem conditioning.

A washing apparatus comprises a screening apparatus having a first screening deck located below a second screening deck, wherein the first screening deck passes material that is larger than the material passed by the second screening deck. A liquid delivery system delivers liquid onto the first screening deck to wash material on the first deck. Material that passes through the first deck is conveyed upwards and delivered onto the second deck for dewatering. The apparatus is able to wash and dewater aggregate material in a single unit with a relatively small footprint and relatively high throughput.

A combine harvester includes threshing apparatus, a grain pan and a cleaning unit. The grain pan is arranged to collect a grain/chaff stream from the threshing apparatus and is driven in an oscillating manner to convey the collected grain/chaff to a rear edge from where the grain/chaff stream falls into the cleaning unit. The cleaning unit includes a fan unit for generating an airstream directed through the grain/chaff stream falling from the rear edge and an airstream vented above the grain pan.

The Automatic Shaker Screen Cleaner of this invention enables the efficient cleaning of the large shaker screens that are often used in petroleum extraction and mining operations. This Automatic Shaker Screen Cleaner includes a pump system to deliver water or solvent fluid to clean the shaker screens; a motor system to move the cleaning apparatus back and forth to facilitate the cleaning of the shaker screens; a pressurized air system to clean the hoses when the device is not in use, as well as the electronic controls and power connections required to safely operate the Cleaner.

The Automatic Shaker Screen Cleaner of this invention enables the efficient cleaning of the large shaker screens that are often used in petroleum extraction and mining operations. This Automatic Shaker Screen Cleaner includes a pump system to deliver water or solvent fluid to clean the shaker screens; a motor system to move the cleaning apparatus back and forth to facilitate the cleaning of the shaker screens; a pressurized air system to clean the hoses when the device is not in use, as well as the electronic controls and power connections required to safely operate the Cleaner.

Vibratory classifier apparatus are provided, e.g., for classification of materials such as wet or dry aggregate materials. In some embodiments, a selectively displaceable and/or removable access panel is provided.

Vibratory classifier apparatus are provided, e.g., for classification of materials such as wet or dry aggregate materials. In some embodiments, a selectively displaceable and/or removable access panel is provided.

The disclosure relates to an ultrasonic detection system in an arrangement for handling screening material, e.g. aggregate, ore or similar. The ultrasonic detection system includes an ultrasonic transmitter arranged at a surface of the arrangement, and adapted to send out an ultrasonic signal towards the surface, an ultrasonic receiver arranged at the surface, and adapted to receive the ultrasonic signal, and a control unit connected to the at least one ultrasonic transmitter and the at least one ultrasonic receiver. The disclosure also relates to a method for monitoring operation of an arrangement for handling screening material.