Cooperative treatment technology for copper-containing electronic wastes

An electronic waste and co-processing technology, applied in combustion methods, lighting and heating equipment, combustion types, etc., can solve the problems of high noise and dust, difficult to deal with wastes such as electronic components, labor and energy, etc. Efficient recycling, obvious effect of emission reduction

CN105782986AInactive Publication Date: 2016-07-20JIANGSU UNIV OF TECH
6 Cites 16 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-07-20
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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...

Examples

Embodiment Construction

[0024] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with examples.

[0025] A cooperating process for copper-containing electronic waste, comprising the steps of:

[0026] 1) Raw materials such as soot, sludge, neutralization slag, and electronic components are piled up in the raw material yard after entering the factory. After the bulk materials are crushed, various waste mixtures are prepared according to the assay content of the relevant metals in the waste, and are carried out in the mixing yard. Stir, mix, and send to the ball making machine to make balls;

[0027] 2) The pellets produced by the pelletizing machine and auxiliary materials such as carbon concentrate, limestone, and hematite are sent to the shaft furnace for combustion, and the relevant materials descend under the action of their own weight, and pass through the preheati...