METHOD OF ELECTROSTATIC ENRICHMENT OF THE MIXTURE AND DEVICE FOR ITS REALIZATION Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: method of separating the organic and mineral particles of biohumus includes the supply of biohumus in the form of a layer 10-12 mm to the sloped surface along all its length. It is supplied through the bunker with a regulating gate. The sloped surface comes into contact with the electrical brush of the positive charge. The the mixture falls onto the rotating drum with the brush of the negative charge and is separated into fractions. The device has a bunker with the gate by means of which it establishes the width of the hole for the biohumus to outgo to the sloped chute. The angle of the chute slope to the horizon is in the range of 30-55 and it ensures the layer thickness and the movement of particles under the action of gravity overcoming the resistance of the electrostatic forces. The brush to which the positive electric direct-current charge is fed, charges not only the sloped surface but also the biohumus particles of the positive charge which move along the chute and fall on the rotating negatively charged surface of the drum. In so doing the positively charged organic particles adhere to the drum surface and are stripped off the surface with a scraper for collecting the organic substances into a reservoir. The mineral particles with the negative charge are pushed away from the drum surface and go to another reservoir. The width of the lower part of the chute is equal to that of the bunker. EFFECT: enhanced efficiency of enrichment of loose mixtures. 4 cl, 1 dwg