| 摘要 |
An apparatus for the electrostatic separation of a mixture of particles that exhibit difference in electrical conductivity comprising: a rotating roll with a conductive surface to which conducting particles lose their charge; feeding means for feeding the mixture of particles onto the conductive surface; an ionising electrode for ionising individual particles in the mixture of particles; a first static electrode having the same polarity as the ionising electrode and which serves to generate a static electric field, the first static electrode being located sufficiently close to the ionising electrode that the static field acts on the particles immediately after they are ionised; and splitter comprising a leading edge over which a conductor fraction stream flung from the rotating roll following charge decay in these particles passes, wherein the leading edge of the splitter is positioned beneath the first static electrode so that the conductor fraction remains under the influence of the static electric field as it is collected.
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