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Resource recycle method for waste tubes

A recycling method and recycling technology, applied in the recycling field of waste lamp tubes, can solve the problems of unsatisfactory effect, poor popularization, and large investment, and achieve the effects of low cost, high practicability, and high sorting efficiency

Inactive Publication Date: 2009-12-16
HUIZHOU DINGCHEN IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (2) For the incineration method, according to the report of the American Electrical Manufacturers Association, the effect is not ideal, and 90% of mercury in waste lamp tubes and light bulbs containing mercury will enter the atmosphere
This technology can effectively separate and collect recyclable rare earth phosphors, but the investment is large and the promotion is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] A resource recovery method for waste lamp tubes is as follows:

[0016] Put the waste lamp tube into the crusher to crush under negative pressure, and send the crushed material into the material receiving box; the exhaust fan on the upper part of the material receiving box sucks the waste gas into the condensation system to separate mercury and phosphor, among which, The mercury is recovered through the vacuum heater, and the purity of the generated product can reach 99.9%, and the gas is evacuated up to standard. The broken glass and metal materials are sent to the magnetic separator to realize the separation of glass and metal; the separated metal is sent to the washing machine, and the metal is recovered by three-stage countercurrent spray washing. The washing machine uses the principle of vibration conveying to achieve the purpose of washing and conveying.

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PUM

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Abstract

The invention relates to a resource recycle method for waste tubes, and the technique method is as follows: pouring the waste tubes into a crusher for crushing under the negative pressure; delivering the mixture after crushing into a material receiving box; sucking the waste gas into a condensing system by an exhaust fan arranged on the top of the material receiving box for separating mercury and fluorescent powder; wherein, mercury can be recycled by a vacuum heater; the glass after crushing and the metal materials are sent to a magnetic separator for separating the glass from the metal; the separated metal is sent to a washing machine for recycling the metal by third-stage reverse current spraying washing. The invention can effectively recycle the fluorescent powder, mercury and metal, thus realizing up-to-standard discharge of waste water, waste liquid and waste gas.

Description

technical field [0001] The invention relates to a resource recycling method for waste lamp tubes. technical background [0002] At present, there are roughly three ways to dispose of mercury-containing waste lamp tubes and waste bulbs: landfill with sulfur addition, incineration, and recycling. [0003] (1) Sulfur-added landfill is a relatively simple and effective method. According to the report of the American Electrical Manufacturers Association, after nearly ten years of experimental research, it has not been found that landfill has any obvious danger to human health, and the US Environmental Protection Agency Tests of leachate from landfills have also rarely detected levels of mercury above drinking-water standards. [0004] (2) For the incineration method, according to the report of the American Electrical Manufacturers Association, the effect is not ideal, and 90% of the mercury in the mercury-containing waste lamp tubes and waste bulbs will enter the atmosphere. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J9/52C09K11/01C22B7/00B09B3/00
CPCY02W30/50Y02W30/60Y02W30/82
Inventor 林春涛
Owner HUIZHOU DINGCHEN IND DEV
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