Treatment device and method for non-destructive disassembling the waste circuit board

Abstract

The invention discloses a device for nondestructively disassembling and treating waste circuit boards and a method thereof. The device comprises six parts of a conveying unit, a heating and heat insulation unit, a loading and unloading unit, a vibration unit, a recovery unit and a smoke removing unit. The conveying unit conveys the circuit boards; the heating and heat insulation unit melts soldering tin on the circuit boards; the loading and unloading unit realizes rapid loading and automatic unloading of the circuit boards; the vibration unit is used for separating the soldering tin and components from the circuit boards; the recovery unit is used for realizing separation and recovery of the soldering tin and the components; and the smoke removing unit is used for filtering flue gas dust in waste gas and odor produced in the operation of the device. The device and the method thereof have the advantages of continuous operation, high disassembling efficiency, high heating speed, controllable temperature, energy saving, high nondestructive disassembling rate of the components, small volume, light weight, simple installation, low power, high automation degree and simple processing operation.

Description

technical field [0001] The invention belongs to the field of electronic waste treatment and recycling of waste materials, and in particular relates to a treatment device and a treatment method for non-destructive disassembly of waste circuit boards. Background technique [0002] A printed circuit board (Printed Curcuit Board, referred to as PCB, or Printed wiring Board, referred to as PWB) is an important part of electronic information products, household appliances, etc. my country is a big country in the production of circuit boards in the world, and tens of thousands of tons of waste circuit boards are produced in the annual production process; with the continuous upgrading of electronic and electrical products, a large number of electronic and electrical products have been eliminated, and printed circuit boards, one of its key components, have also followed From the perspective of the total amount of discarded circuit boards, it is about 70 million tons per year. On the ...

AI Technical Summary

Problems solved by technology

Its disadvantages are: because the circuit board cannot be well sealed when it is installed in the device, and there are many through holes such as mounting holes and pin jacks on the substrate itself, hot air is constantly blown into the surface of the circuit board. Under normal circumstances, the lower surface of the circuit board is not easy to generate a large negative pressure, so the removal effect of the plug-in components is not good; the electronic components of the circuit board are swept down by the roller brush, which is easy to damage the components; there is no continuity Disassemble the circuit board

Images