Hazard-free treatment system and method for electronic waste

A technology for electronic waste and treatment system, which is applied in the direction of electronic waste recycling, solid waste removal, combustion methods, etc. The effect of meeting environmental requirements and preventing spillage

Pending Publication Date: 2018-06-29
甘肃华壹环保技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic technology for processing waste electronic materials is relatively backward. Many processing technologies are aimed at recycling raw materials, and there are big problems in terms of recycling efficiency and environmental pollution.
In terms of operation, it is basically manual operation,

Method used

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  • Hazard-free treatment system and method for electronic waste
  • Hazard-free treatment system and method for electronic waste
  • Hazard-free treatment system and method for electronic waste

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0039] Treatment Method Example 1: A method for the harmless utilization of electronic waste. The electronic waste includes waste printed circuit boards, waste LCD screens, waste copper, and waste iron. The steps are: 1) Dispose of waste TV sets and waste refrigerators. Dismantling waste washing machines, waste air conditioners, waste computers, waste mobile phones, waste MP3, and dismantling waste printed circuit boards, waste LCD screens, waste copper, and waste iron are separately stored;

[0040] 2) Material preparation

[0041] According to the mass ratio, waste printed circuit boards, waste LCD screens, waste copper, and scrap iron are weighed and mixed according to the ratio of 56:4:35:5, and then crushed, and the crushed materials are sent to oxygen and rotated obliquely In the feeder supporting the converter (a ship-shaped feeder can be used);

[0042] 3) Feeding

[0043] Before the start of a production cycle, the oxygen oblique blowing rotary converter furnace is preheated...

Example Embodiment

[0058] Treatment method embodiment 2: A method for the harmless utilization and treatment of electronic waste. The electronic waste includes waste printed circuit boards, waste LCD screens, waste copper, and waste iron. The steps are: 1) Dispose of waste TV sets and waste refrigerators. Dismantling waste washing machines, waste air conditioners, waste computers, waste mobile phones, waste MP3, and dismantling waste printed circuit boards, waste LCD screens, waste copper, and waste iron are separately stored;

[0059] 2) Material preparation

[0060] According to the mass ratio, waste printed circuit boards, waste LCD screens, waste copper, and waste iron are weighed and mixed according to the ratio of 55:3.5:34:4.5, and then crushed, and the crushed materials are sent to oxygen and rotated obliquely In the feeder supporting the converter (a ship-shaped feeder can be used);

[0061] 3) Feeding

[0062] Before the start of a production cycle, the oxygen oblique blowing rotary converter...

Example Embodiment

[0077] Treatment method embodiment 3: A method for the harmless utilization of electronic waste. The electronic waste includes waste printed circuit boards, waste LCD screens, waste copper, and waste iron. The steps are: 1) Dispose of waste TV sets and waste refrigerators. Dismantling of waste washing machines, waste air conditioners, waste computers, waste mobile phones, waste MP3s, and waste printed circuit boards, waste LCD screens, waste copper, and scrap iron obtained from the disassembly are separately stored

[0078] 2) Material preparation

[0079] According to the mass ratio, waste printed circuit boards, waste LCD screens, waste copper, and waste iron are weighed and mixed according to the ratio of 57:4.5:36:5.5, and then crushed, and the crushed materials are sent to oxygen and rotated obliquely In the feeder supporting the converter (a ship-shaped feeder can be used);

[0080] 3) Feeding

[0081] Before the start of a production cycle, the oxygen oblique blowing rotary co...

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Abstract

The invention discloses a hazard-free treatment system and method for electronic waste. The system comprises a material preparation system, a pyrolysis system, a casting machine, an oxygen supply system and a flue gas purification system. The material preparation system comprises a disassembling device, a waste storage bank, a weighing device, a conveying device and a physical crusher, wherein waste printed circuit boards and waste liquid crystal display screens are stored in the waste storage bank. The pyrolysis system comprises an oxygen obliquely-blowing revolving furnace and a feeder. Thetreatment method comprises the steps of 1, collecting and storing the waste printed circuit boards, the waste liquid crystal display screens, scrap copper and scrap iron; 2, conducting material preparation, weighing, material compounding, mixing and crushing, and delivering the materials into the feeder; 3, conducting feeding; 4, conducting reductive smelting; 5, conducting slag dumping; 6, conducting blowing; 7, conducting drossing and ingot casting; and 8, discharging a product out of the furnace, and casting an alloy plate. The hazard-free treatment system and method have the beneficial effects that smelting, reduction and refining can be completed in the same furnace, an additional smelting furnace does not need to be added, and inertia slag capable of being piled up is generated; andthe hazard-free treatment system can be completely closed, and the environmental requirement is met.

Description

technical field [0001] The invention belongs to the field of resource utilization of electronic waste, and relates to the harmless utilization treatment of dismantling waste electric appliances and dismantling products (including waste printed circuit boards, waste liquid crystal screens, waste miscellaneous copper, waste iron, etc.). Background technique [0002] Developed countries attach great importance to the recovery of conventional metals and rare and precious metals from PCBs, and the technical means adopted are usually divided into two categories: physical methods and chemical methods. Physical methods are mainly used for the recovery of conventional metals (such as aluminum and copper). For example, the United States uses powerful cyclone separators to recover aluminum from PCBs of personal computers; Separation of gold, silver and iron, aluminum, zinc and tin in circuit boards; Sweden uses electric drum electrostatic separators to recover copper. Chemical methods...

Claims

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Application Information

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IPC IPC(8): F23G5/00F23G5/02F23G5/033F23G5/44B09B3/00
CPCF23G5/00F23G5/02F23G5/033F23G5/44B09B3/00Y02W30/82
Inventor 张兴林邵兴华范虹罗伟徐再军王维猛杨阳
Owner 甘肃华壹环保技术服务有限公司
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