METHOD FOR WET SEPARATION OF MINERAL RESOURCES AND ELECTRODYNAMIC SEPARATOR FOR ITS IMPLEMENTATION Russian patent published in 2021 - IPC B03C1/24 

FIELD: mineral processing.

SUBSTANCE: proposed group of inventions relates to the field of mineral processing by the method of wet electrodynamic separation in a traveling magnetic field and allows separating liquid mixtures of magnetizable and non-magnetic particles, as well as liquid mixtures of non-magnetic electrically conductive and non-conductive particles. The method of wet separation of minerals is that a suspension with solid particles is passed through an electrodynamic separator with a cylindrical-conical working surface, while an alternating magnetic field is generated using a magnetic deflection system. The parameters of the magnetic field are selected by software, supplying voltages to the windings of the magnetic deflection system, which have a variable frequency and amplitude, as well as phase voltages that are offset relative to each other by 120 degrees. A running magnetic field closed in a ring is created inside the conical part of the separator, with the help of which the movement of particles is controlled, the particles in space are divided into fractions, the separated fraction is moved along the separator axis up to the center of the working zone, after which the separated fraction is extracted using a vertical extraction device, and the non-separated fraction moves to the lower branch pipe of the separator. The method is carried out using an electrodynamic separator, including a housing with an outlet annular hole, a gate with a lower branch pipe, a device for feeding a starting material, a device for supplying wash water, a device for withdrawing a separation product, a complex inductor with a control system. The complex inductor is made in the form of a magnetic deflection system, consisting of a multi-pole system of electromagnetic coils connected through a control system to phase voltage sources. A multi-pole system of coils is placed around the conical part of the separator in a truncated conical bowl, and the windings of the coils, which have the form of vertically elongated isosceles triangles, are laid in the slots between the poles of the core, respectively, the poles of all coils are turned at an angle to the axis of the separator, and the number of poles is a multiple of 3 and 4.

EFFECT: invention is aimed at ensuring the required degree of recovery from the mass flow of magnetizable and non-magnetic particles, as well as non-magnetic conductive and non-conductive particles of the enriched size class.

7 cl, 4 ex, 8 dwg