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Device for extracting fiber glass from non-metallic material of waste printed circuit boards and industrialized production process

A technology of non-metallic materials and glass fiber, which is applied in the direction of the device whose axis can be reversed, the swirl device, the removal of solid waste, etc., can solve the problems of undeveloped technology and achieve easy automation and long service life Long, accelerated flow velocity cooling effect

Inactive Publication Date: 2010-09-22
BEIHANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no mature technology for extracting glass fiber from non-metallic materials of waste printed circuit boards

Method used

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  • Device for extracting fiber glass from non-metallic material of waste printed circuit boards and industrialized production process
  • Device for extracting fiber glass from non-metallic material of waste printed circuit boards and industrialized production process
  • Device for extracting fiber glass from non-metallic material of waste printed circuit boards and industrialized production process

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Experimental program
Comparison scheme
Effect test

Embodiment

[0064] use as figure 1 The shown device, the industrialized production process of extracting glass fiber from the non-metallic material of waste printed circuit board is:

[0065] Step 1: Place quartz sand with a particle size of 0.5 to 1 mm at the air inlet of fluidized bed reactor 5, and the thickness of the quartz sand is 400 mm at rest;

[0066] The second step: the air is introduced into the electric heater 2 through the A induced draft fan 1 for heat treatment to form a hot air flow and output to the fluidized bed reactor 5;

[0067] The temperature of the hot air is 600°C;

[0068] The gas flow rate of A induced draft fan 1 is 1000m 3 / h, wind pressure is p 1 =10KPa;

[0069] The third step: transport the waste printed circuit board non-metallic materials with a particle size of 10-300 μm to the fluidized bed reactor 5 through the feeder 4; the conveying speed of the feeder 4 is 100Kg / h;

[0070] The fourth step: make the quartz sand placed in the first step and th...

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Abstract

The invention discloses a device for extracting fiberglass from the nonmetallic materials of a waste printing circuit board as well as an industrial production technique. The device is connected with an electric heater (2), a fluidized bed reactor (5), a first grade cyclone separator (6), a second grade cyclone separator (7), an intermediate frequency heater (3) and a B draught fan (8) in sequence from an A draught fan (1) to a liquid dust remover (9); a feed device (4) is arranged on the fluidized bed reactor (5). In the technique for extracting fiberglass from the nonmetallic materials of awaste printing circuit board, firstly high temperature thermal decomposition is carried out in the fluidized bed; then multi-grade separation is carried out in the cyclone separator for obtaining thefiberglass; then high temperature decomposition is carried out on a gas product in the intermediate frequency heater; finally, a sharp quenching lye absorbing treatment is carried out; the technique can effectively push and promote the broad utilization of the nonmetallic materials in the waste printing circuit board. The fiberglass extracted by the industrial production technique can be used formanufacturing the compound materials of various fiberglasses for realizing the recycling of the nonmetallic materials of the waste printing circuit board with high added value.

Description

technical field [0001] The invention relates to the technical field of recovery, treatment and reuse of waste printed circuit boards, in particular to a glass fiber recycling method and industrial production process for non-metallic materials in waste printed circuit boards. Background technique [0002] Printed circuit boards are an important part of electronics. However, with the acceleration of the current upgrading of electronic products, a large amount of electronic waste has also been generated, and the number of waste printed circuit boards has also increased. How to effectively recycle waste printed circuit boards has become a current concern It is a new issue facing my country's economic, social and environmental development. [0003] The physical recycling method of waste printed circuit boards is an environmentally friendly method that is widely used at present, and the recycling technology of metal materials obtained from recycling is very mature. However, when ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J11/10B09B3/00B04C5/24B09B5/00
CPCB29K2709/08B29B17/02B29K2105/06Y02W30/62
Inventor 沈志刚郑艳红麻树林蔡楚江张越吴晓
Owner BEIHANG UNIV
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