A spiral regenerative gas-fired electronic waste pyrolysis system
An electronic waste and heat storage technology, which is applied in the direction of combustion type, combustion method, and special form of dry distillation, etc., can solve the problems of inability to realize continuous feeding and discharging, complicated pyrolysis process, and low pyrolysis efficiency, so as to protect the environment and avoid Severe pollution, the effect of uniform flow field
Active Publication Date: 2019-02-15
SHENWU TECH GRP CO LTD
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Problems solved by technology
The traditional pyrolysis method cannot realize continuous feeding and discharging, and the pyrolysis process is complicated, the pyrolysis efficiency is low, and the energy consumption is high
Method used
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Embodiment 1
[0070] The spiral regenerative gas combustion system uses natural gas as fuel, and the amount of natural gas is 2Nm 3 / h, the air volume is 22Nm 3 / h, electronic waste materials (circuit boards, wires, keyboards, etc.) 0.286Nm for oil and gas 3 / h, to achieve continuous material in and out. During the pyrolysis process, the temperature is continuously maintained at 600°C-700°C, and the heat source is very stable.
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Abstract
The invention relates to the technical field of waste pyrolysis, in particular to a spiral heat accumulation type gas electronic waste pyrolysis system. The system comprises a raw material treatment system, a metal recovery system and an electronic waste pyrolysis reaction system, wherein the raw material treatment system comprises a crushing device and a sorting device; the metal recovery system comprises an acid leaching pool and an electrolytic tank; the electronic waste pyrolysis reaction system comprises an electronic waste pyrolysis reactor, a heat accumulation type gas heating system and a cooling separation system, and the electronic waste pyrolysis reactor comprises a material pyrolysis assembly and a reactor casing; the heat accumulation type gas heating system comprises heat accumulation type combustion apparatus, a flue gas channel and a flue screw; the cooling separation system comprises an indirect heat exchanger and a cooling tower. The system has the advantages that the pyrolysis efficiency is high, continuous feeding and discharging are realized, electronic waste is divided into organic matter and a metal part to be treated and recovered respectively, energy-saving and environment-friendly effects are remarkable and the like.
Description
technical field [0001] The invention relates to the technical field of waste pyrolysis, in particular to a spiral heat storage type gas-fired electronic waste pyrolysis system. Background technique [0002] In recent years, all kinds of electronic products are changing with each passing day, and the new and old replacements are getting faster and faster, and the resulting electronic waste is increasing exponentially. The heavy metal elements contained in it will seriously pollute the environment. If electronic waste is not handled properly, it will produce toxic and harmful gases such as dioxin, causing secondary pollution. At present, the processing methods for electronic circuit boards mainly include mechanical physical methods, metallurgical extraction methods, biological treatment methods, and pyrolysis methods, among which mechanical physical methods, metallurgical extraction methods, and biological treatment methods mainly focus on the metal in circuit boards. Recycli...
Claims
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IPC IPC(8): F23G5/027F23G5/033F23G5/04C10B53/00C10B57/00
CPCC10B53/00C10B57/00F23G5/027F23G5/033F23G5/04
Inventor 王宁郭科宏王志军石为华王东方吴道洪
Owner SHENWU TECH GRP CO LTD