Abstract: In a screening device for sorting granular material with at least one rotatable rod basket and a downstream fine material separator a cyclone-type eddy separator is attached with the smaller diameter of its housing cone in order to draw off the screening gas flow charged with fine material and flowing out due to twisting energy in such a way that the rod basket screening device and the separator form a compact unit. A submerged pipe is located in the center of the cyclone-type eddy separator for drawing off the screening gas flow freed of fine material. At least one opening is provided for discharging the fine material at the periphery of the eddy separator housing.

Abstract: A multi-function portable gas stove with folding pan supports comprises a burner that is surrounded by a reflective tray for reflecting a heat radiation of a stove fire of the portable gas stove on a cooker, and plural sets of support units pivotally connected to the burner. Each of the support units comprises a first folding arm that has three joints and heat sinks while drawn by an elastic element. The first joint of the first folding arm is pivotally connected to the burner, and the second joint is pivotally connected by one end of a second folding arm. A third folding arm is pivotally connected between the third joint of the first folding arm and a sliding groove formed on the second folding arm. Furthermore, a rotatable claw is pivotally mounted on the third joint of each of the first folding arm.