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Electronic waste disposal system and method

A technology of e-waste and processing system, applied in the field of pyrolysis, which can solve the problems of limited pyrolysis degree, limited use of gas products, and non-pyrolysis of materials, so as to avoid coking of materials and efficiently treat e-waste

Pending Publication Date: 2017-03-29
SHENWU TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology still has the following disadvantages: (1) There are too many residues in the gas product, resulting in limited use of the gas product; (2) Using a fluidized bed for pyrolysis of electronic waste, the degree of pyrolysis is limited, and the material cannot be thermally The solution is complete; (3) The scope of application of material particle size is limited

Method used

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  • Electronic waste disposal system and method
  • Electronic waste disposal system and method

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Experimental program
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Effect test

Embodiment 1

[0067] First, choose nitrogen as the inert gas, send nitrogen into the system, replace the feed system, reactor, cooling system and the pipes connecting each part, so that the whole system is in an inert atmosphere. When electronic waste is selected as printed circuit boards, it is crushed and sorted by the crushing and sorting device to obtain materials with a particle size below 30mm, which are sent to the feeding system by mechanical devices. The reactor heating unit was turned on to heat the reactor, and the temperature of the reactor was heated to 800°C. Open the cut-off valve in the intermediate storage tank of the feed system and the reactor, and feed the material into the reactor. The material undergoes pyrolysis reaction in the reactor, and the gas products produced are discharged from the top of the reactor end, and then enter the indirect heat exchanger and cooling tower for cooling, and the tar and non-condensable gas obtained are stored separately; the solid produ...

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PUM

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Abstract

The invention relates to the field of pyrolysis, in particular to an electronic waste disposal system and method. The system comprises a breaking and sorting device, a feeding device, a stock bin, an intermediate storage tank, a reactor, a cooling chamber, an indirect heat exchanger and a cooling tower; the breaking and sorting device is connected with the feeding device, the intermediate storage tank is connected with the stock bin, the intermediate storage tank is connected with a feeding opening in the upper portion of the reactor, a slag outlet in the lower portion of the reactor is connected with the cooling chamber, a gas outlet of the cooling chamber is connected with the feeding opening of the reactor, the indirect heat exchanger is connected with an oil and gas outlet of the reactor, and the cooling tower is connected with the indirect heat exchanger. Therefore, electronic waste can be stably, continuously and efficiently disposed, the requirements for different treatment amounts can be met according to needs, in the pyrolysis process, the materials are stirred in the reactor along with a spiral propeller, heating is uniform, and pyrolysis is sufficient.

Description

technical field [0001] The invention relates to the field of pyrolysis, in particular to an electronic waste treatment system and method. Background technique [0002] The development of economy and the advancement of science and technology make the electronic industry develop rapidly, so electronic waste has become one of the fastest growing wastes in the world. Electronic waste, commonly known as electronic waste, is mainly composed of discarded household appliances, communication tools, battery products, etc., covering waste electronic and electrical equipment in various fields of life and electronic and electrical waste or scrap products produced in industrial manufacturing fields. The composition is complex and there are many types. . It contains a large amount of available resources such as polyester, plastic, glass, and precious metals. Random disposal will bring potential harm to the environment and will inevitably cause a great waste of resources. Reasonable and ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00
CPCB09B3/40
Inventor 吴道洪宋敏洁杨玉地石为华陈珊王宁
Owner SHENWU TECH GRP CO LTD
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