Dry type electrostatic separator for dry type recovery production line of waste circuit board

Abstract

The invention relates to a dry type electrostatic separator for a dry type recovery production line of a waste circuit board, which comprises a feeding hopper, grounded separating cylinders, separating hair brushes and electrostatic frames, wherein at least one electromagnetic shaker is at least arranged on an outlet of the feeding hopper, so as to drive the feeding hopper and a crushed material in the hopper to be shaken together; four groups of the grounded separating cylinders, the separating hair brushes close to two-two opposite inner sides of the grounded separating cylinders and the electrostatic frames arranged oppositely on two-two opposite outer sides of the grounded separating cylinders are distributed in a trapezoid; the grounded separating cylinders and the electrostatic frames pass through an electrostatic generator, so that an electric field is generated between the grounded separating cylinders and the electrostatic frames; when the crushed material passes, metal particles and non-metal particles in the crushed material are separated by the electric field; and the separating hair brushes are used for brushing off the crushed material adsorbed on the grounded separating cylinders. Thus, the problems of low separating efficiency and high impurity amount can be solved, the separating efficiency is high, and no secondary pollution is caused.

Description

technical field [0001] The invention relates to the technical field of sorting, in particular to a dry electrostatic sorter for a waste circuit board dry recycling production line. Background technique [0002] In daily life, we often see wastes such as waste printed circuit boards, cables, aluminum plastics, etc. The proportion of these wastes in urban solid waste is getting higher and higher. The amount of electronic waste processed in my country reaches hundreds of tons every year, of which printed circuit boards account for about 4% of the total. The metal grade in waste circuit boards is dozens or even hundreds of times that of natural mineral deposits, which has important recycling value, and their recycling has become the focus of social attention. [0003] The dry electrostatic separator can not only sort various plastics or other impurities, such as aluminum-plastics, waste printed boards (copper and PCB), waste cables, ceramic impurities in alloy powder, ore separa...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN200920051536.0 provides an electrostatic sorting device with small volume, low power consumption, simple structure and convenient installation, but there are still problems of low sorting efficiency and high impurities

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