DEVICE FOR VIBRATION-CENTRIFUGAL CLASSIFICATION OF MAN-MADE FIBROUS MATERIALS Russian patent published in 2022 - IPC B02C17/00 

FIELD: fibrous materials.

SUBSTANCE: invention is intended for deagglomeration and classification of technogenic fibrous materials. The device contains a hopper 1, a loading pipe 2, a frame 3, vertical guides 4, an upper prismatic 5, middle and lower cylindrical chambers 6, 7 for processing materials. They are interconnected by branch pipes 8, 10 with windows 9, 11 and placed on the frame. The upper chamber 5 of a prismatic shape contains loading 2 and unloading 8 nozzles, chain curtains 17. Under them there are guide shelves 18 inclined towards the center. In the lower part of the chamber there is a diamond-shaped classifier 19, made up of spring-loaded classifying plates 20, 21 pivotally connected to each other. The upper plates 20 are inclined downwards from the center at an angle α=(3÷5)°. The lower plates 21 are inclined towards the center down at an angle β=(5÷7)°. Under the lower mesh plates, inclined toward the side walls of the chamber at an angle γ=(7÷10)°, unloading solid plates 25 for screening out fine-fiber material through the unloading nozzles 26 are installed. In the middle cylindrical chamber 6 of the classifier along its horizontal axis there are truncated cones 27 connected to each other from the center by large bases to the walls of the chamber 6 with longitudinal holes along their lateral surface. Along the edges of the chamber, cones 27 are connected by large bases to outlet pipes 28. The blocks of classifying cones themselves are located inside mesh truncated cones 29, located with large bases towards the center of chamber 6, before mating with a cylindrical insert 30 in the center. Discharge nozzles 10 are installed in the lower part of the chamber, while mesh cones 29 are also bordered by solid truncated cones 31, the large bases of which are directed to the end bottoms of the cylindrical chamber 6 with discharge nozzles 32 of the fine-fiber product.

EFFECT: invention allows expanding the technological capabilities of the unit by ensuring the processing of a wide range of technogenic fibrous materials with different physical and mechanical characteristics and obtaining fiber fibers of various fractions.

4 cl, 4 dwg