Tail gas treatment method and system for pyrolysis of waste circuit boards

A technology for waste circuit board and tail gas treatment, applied in the field of tail gas emission treatment, which can solve the problems of low feasibility and treatment efficiency, etc.

Inactive Publication Date: 2019-02-15
ADVANCED FOR MATERIALS & EQUIP
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  • Abstract
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Problems solved by technology

[0003] Based on this, it is necessary to address the technical problems of the feasibility and low treatment efficiency of the above-mentioned tail gas tre

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  • Tail gas treatment method and system for pyrolysis of waste circuit boards
  • Tail gas treatment method and system for pyrolysis of waste circuit boards

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[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of descr...

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Abstract

The invention relates to a tail gas treatment method and system for pyrolysis of waste circuit boards. The tail gas treatment method comprises the steps that combustion treatment is carried out on thetail gas pyrolyzed from the waste circuit boards to destroy harmful substances in flue gas; The flue gas after combustion treatment is denitrated, nitrogen and oxygen compounds in the flue gas are reduced to harmless substances; the denitrated flue gas is subjected to cooling treatment for cooling the flue gas; the flue gas after the cooling treatment is subjected to pollutant removal treatment for removing gaseous pollutants and dust in the flue gas; and the flue gas after the pollutant removal treatment is deacidified for removing acid gas in the flue gas. The tail gas treatment method improves the feasibility and treatment efficiency of the implementation scheme, and is environment-friendly.

Description

technical field [0001] The invention relates to the technical field of tail gas emission treatment, in particular to a tail gas treatment method and system for pyrolysis of waste circuit boards. Background technique [0002] The cracking furnace for waste circuit boards is aimed at the furnace used in the cracking process of waste circuit boards. By heating the circuit board materials, it reacts and cracks in a certain atmosphere, and then through subsequent process operations, the products after the cracking are purified and recycled, so as to achieve Resource recovery and reuse of waste circuit boards. The waste circuit board pyrolysis process requires heating to provide heat energy. Usually, the heating method can be electric heating and burner heating, and combustion gas heating needs to solve the problem of harmless emission treatment of gas combustion tail gas. At present, the feasibility and treatment efficiency of tail gas treatment methods are relatively low. Con...

Claims

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Application Information

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IPC IPC(8): F23G5/44F23G7/06F23J15/02F23J15/06
CPCF23G5/44F23G7/06F23J15/022F23J15/06
Inventor 戴煜周强毛东芝李林波
Owner ADVANCED FOR MATERIALS & EQUIP
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