Cooperative treatment technology for copper-containing electronic wastes

Abstract

The invention discloses a cooperative treatment technology for copper-containing electronic wastes. In the technology, soot sludge, neutral dregs and electronic parts and components are treated by a pyrogenic-process shaft furnace smelting technology, and perfect environmental protection systems including waste heat utilization, smoke treatment and the like are used in an assisted manner. The cooperative treatment technology for the copper-containing electronic wastes specifically comprises the following steps: pretreatment, smelting, secondary combustion, waste heat recovery, smoke treatment and the like. By the treatment technology, waste mixed electronic parts and components, circuit boards with parts and components, circuit boards with cloth bag parts and components, electroplating sludge and smelting soot can be cooperatively treated in batches; by the treatment technology, labor for treatment and disposal can be greatly reduced, and energy consumption is also reduced; and by the treatment technology disclosed by the invention, the emission reduction effect is quite obvious, smoke emission can reach the standard, valuable metals are recycled effectively, and generated furnace slag can be used for building materials.

Description

technical field [0001] The invention relates to the technical field of electronic waste treatment, in particular to a process for synergistic treatment of waste electronic components and waste such as smelting soot and electroplating sludge. Background technique [0002] Waste electrical and electronic products have become the fastest-growing "urban" waste. Heavy metals such as lead, chromium, mercury, and cadmium, and other toxic and harmful substances such as halogen flame retardants are the main sources of secondary pollution in the disposal of electronic waste. Although my country currently has 107 fixed-point dismantling enterprises for "four machines and one brain" such as waste computers, waste TV sets, waste refrigerators, waste air conditioners, and waste washing machines, most of them are dismantling and classification enterprises. All kinds of demolition residues obtained by classification are still in the state of waiting for opportunities to sell. As for the bac...

AI Technical Summary

Problems solved by technology

But the disadvantages are very obvious: first, it is impossible to process a large number of mixed electronic components obtained from dismantling, and most of these electronic components are still in the state of stockpiling as hazardous waste; There are more labor and energy, and the noise and dust generated are larger; the third is that it is difficult to deal with large quantities of waste such as electronic components

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