System and method for preparing activated carbon from waste circuit boards

A technology for preparing activated carbon and waste circuit boards, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of activated carbon production technology and backward production equipment, achieve easy operation, reduce heat loss, and ensure stability Effect

Pending Publication Date: 2017-03-22
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above-mentioned problem of backward production process and production equipment of activated carbon, improve the production efficiency of activated carbon and reduce production cost, the present invention provides a system and method suitable for preparing activated carbon by pyrolysis and gasification using waste circuit boards as raw materials

Method used

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  • System and method for preparing activated carbon from waste circuit boards
  • System and method for preparing activated carbon from waste circuit boards
  • System and method for preparing activated carbon from waste circuit boards

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Experimental program
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Effect test

Embodiment 1

[0062] Using waste circuit boards as raw materials, the method of preparing activated carbon by using waste circuit boards to prepare activated carbon system is as follows:

[0063] Crushing 4.5 tons of waste circuit boards to obtain crushed materials with a particle size below 2mm;

[0064] The broken waste circuit boards are sent to the pyrolysis furnace for pyrolysis, and the materials are uniformly distributed on the distribution board, and the thickness of the material layer is 120mm. A burner is installed in the pyrolysis furnace, and charcoal residue (temperature is about 550° C.) and pyrolysis oil gas (temperature is about 600° C.) are obtained by pyrolysis.

[0065] The generated carbon residue product is sent to the electrostatic separator to separate the metal, and then the pyrolytic carbon is obtained, and the pyrolytic carbon is sent to the fluidized bed;

[0066] The pyrolysis oil gas produced by pyrolysis is sent to the cooling and purification device for cooli...

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Abstract

The invention relates to a system and method for preparing activated carbon from waste circuit boards. The system comprises a pyrolysis furnace, a burner, an electrostatic separator, a carbon dioxide separation device and a fluidized bed, wherein the pyrolysis furnace is used for pyrolyzing raw materials, namely the waste circuit boards, and residual carbon is generated; the burner is used for heating the raw materials, namely the waste circuit boards, and combustion flue gas is generated; the electrostatic separator is used for separating metal from non-metal to obtain pyrolytic carbon; the carbon dioxide separation device is used for conducting carbon dioxide separation on the combustion flue gas, and carbon dioxide is obtained; the fluidized bed is used for activating the pyrolytic carbon to generate activated carbon. An existing fluidized bed does not need to be transformed, heat loss is reduced, energy consumption is reduced, productivity of the pyrolysis furnace is improved, and reduction, harmlessness and resource utilization of the materials are achieved.

Description

technical field [0001] The invention belongs to the technical field of activated carbon produced by pyrolysis and gasification technology. Specifically, the invention relates to a system and method for preparing activated carbon, especially a method suitable for preparing activated carbon by pyrolysis and gasification using waste circuit boards as raw materials. systems and methods. Background technique [0002] At present, there are mainly two different processes for the pyrolysis of waste circuit boards. One is that all waste circuit boards are pretreated and then pyrolyzed; . The first pyrolysis process can decompose organic bonding materials such as brominated epoxy resin in the circuit board at high temperature, destroying the bonding effect of the resin layer, leaving metal and glass fiber and other components in the reactor as solid phase residues. It is sorted and recovered by simple crushing, magnetic separation, eddy current separation and other methods. In addit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/336C01B32/39C01B32/324
Inventor 吴小飞巴玉鑫肖磊王惠惠房凯牛明杰宋敏洁吴道洪
Owner SHENWU TECH GRP CO LTD
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