Method and Device for the separation of mixtures of particles in a First fraction and a Second fraction.Where the electrical conductivity of the particles in the first fraction, the electrical conductivity is greater than the second fraction, which uses a Corona electrode

摘要

A method for separating a particle mixture into a first and second fraction, the first fraction of particles having an electrical conductivity greater than the particles of the second fraction, by a) ionizing air to have the same polarity with a corona electrode; b) mixing the ionized air with a fluidized particle mixture containing two particle fractions with different electrical conductivities, to obtain a fluidized particle mixture ionized to have the same polarity; d) precipitating particles of the second fraction from the particle mixture on a collection electrode moving relative to the particle mixture, where the collection electrode is grounded or has an opposite charge to the corona electrode; e) removing particles adhered to the collection electrode as the second fraction; and f) obtaining the first fraction from particles of the particle mixture which do not adhere to the collection electrode.