Unlock instant, AI-driven research and patent intelligence for your innovation.

A Pyrolysis Disposal Method of Electronic Waste Based on Microwave Quenching

A technology of electronic waste and pyrolysis, which is applied to combustion methods, lighting and heating equipment, and treatment of combustion products. It can solve the problems of large space required and very high level of automatic control, and achieve strong practicability and elimination of dioxins. Toxic and harmful gases such as British and other toxic and harmful gases, and the effect of reducing energy consumption

Active Publication Date: 2019-03-01
SHANDONG UNIV +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pyrolysis gas produced by pyrolysis and incineration needs to stay in the combustion chamber for a sufficient time for full combustion, resulting in a very high level of automatic control for the incineration system and a large space required, which has become the inconvenience of the practical application of the pyrolysis incineration method place

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Pyrolysis Disposal Method of Electronic Waste Based on Microwave Quenching
  • A Pyrolysis Disposal Method of Electronic Waste Based on Microwave Quenching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The electronic waste pyrolysis disposal method based on microwave quenching includes a waste feeding device, a pyrolysis furnace, a microwave combustion furnace, an exhaust gas purification device, and a slag solid waste cleaning device. The entire pyrolysis incineration system is airtight and under negative pressure. After the electronic waste is crushed at the discharge port, it is sent to the pyrolysis furnace for pyrolysis, and the form of the pyrolysis furnace is a rotary furnace with mature technology. The pyrolysis gas produced in the rotary kiln is pumped by the fan to the air inlet on the top of the microwave oven, and then the pyrolysis gas is mixed with the air sent by another fan for combustion. The pyrolysis residual carbon falls on the high temperature plate in the microwave combustion furnace as a strong microwave-absorbing medium, and the residual carbon layer is heated to a temperature of 1210-1530°C. The opening size of the high temperature plate meets ...

Embodiment 2

[0037] A pyrolysis disposal device for electronic waste based on microwave quenching, including: a feeding device, a pyrolysis device, a microwave combustion device, an exhaust gas purification device, a slag solid waste cleaning device, a fan, and an air preheater. The feeding device, The pyrolysis device, the microwave combustion device and the slag solid waste cleaning device are connected in sequence, and a gas circulation pipeline is also arranged between the pyrolysis device and the microwave combustion device; the pyrolysis device is also connected in sequence with the air preheater and the tail gas purification device When in use, the pyrolysis gas and pyrolysis residual carbon produced by the pyrolysis device are respectively input into the microwave combustion device through the fan and the material channel, and after full combustion, the high-temperature tail gas produced is returned to the pyrolysis device and the air preheater in turn , Exhaust gas purification dev...

Embodiment 3

[0040] A pyrolysis disposal device for electronic waste based on microwave quenching, including: a feeding device, a pyrolysis device, a microwave combustion device, an exhaust gas purification device, a slag solid waste cleaning device, a fan, and an air preheater. The feeding device, The pyrolysis device, the microwave combustion device and the slag solid waste cleaning device are connected in sequence, and a gas circulation pipeline is also arranged between the pyrolysis device and the microwave combustion device; the pyrolysis device is also connected in sequence with the air preheater and the tail gas purification device When in use, the pyrolysis gas and pyrolysis residual carbon produced by the pyrolysis device are respectively input into the microwave combustion device through the fan and the material channel, and after full combustion, the high-temperature tail gas produced is returned to the pyrolysis device and the air preheater in turn , Exhaust gas purification dev...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an electronic waste pyrolysis treatment method based on microwave quenching. According to the method, a waste feeding device, a pyrolysis furnace, a microwave burning furnace, a tail gas purifying device and a furnace slag solid waste removing device are included. Carbon residues generated after waste is subjected to pyrolysis in the pyrolysis furnace are discharged into the microwave burning furnace to serve as a strong wave absorption medium, temperature is increased quickly, pyrolysis gas generated in the pyrolysis furnace is sufficiently burnt when passing through a high-temperature carbon residue layer, poisonous and harmful gas, like dioxin, in the pyrolysis gas is thoroughly eliminated, and damage of incineration of waste to the environment is reduced to a greater extent. The electronic waste pyrolysis treatment method based on microwave quenching is simple in step, convenient to implement and high in practicability.

Description

technical field [0001] The invention belongs to the field of electronic waste treatment, and in particular relates to a microwave quenching-based electronic waste pyrolysis disposal method. Background technique [0002] With the development of the information industry, a large amount of electronic waste has brought more and more harm to the environment. The problem of electronic waste management has become a major challenge for China's sustainable development. At present, the most commonly used treatment technologies for e-waste in the world mainly include heat treatment and hydrometallurgical treatment. Therefore, in the current heat treatment method, pyrolysis incineration is more preferred to treat electronic waste to reduce the generation of hazardous substances. However, the pyrolysis gas produced by pyrolysis and incineration needs to stay in the combustion chamber for a sufficient time for full combustion, resulting in a very high level of automatic control for the i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F23G7/00F23G5/027F23G5/033F23G5/10F23G5/44F23G5/46F23L15/00F23J15/02
CPCF23G5/027F23G5/033F23G5/10F23G5/444F23G5/46F23G7/00F23G2201/303F23G2202/102F23G2204/203F23G2206/20F23G2900/50204F23J15/02F23J2215/301F23J2219/30F23L15/00Y02E20/34
Inventor 孙静赵希强宋占龙毛岩鹏王文龙姚连升
Owner SHANDONG UNIV