On-line detection device and method for heavy metal content in flue gas

A detection device and heavy metal technology, applied in the field of online detection device for heavy metal content in flue gas, can solve the problems of not being able to observe the pollution situation in time, difficult to monitor the operation status, and complicated procedures, so as to avoid the cumbersome testing and meet the infinite The effect of people on duty and improving work efficiency

Inactive Publication Date: 2014-05-28
CENT SOUTH UNIV
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Problems solved by technology

[0004] The invention provides an on-line detection device and method for heavy metal content in flue gas, the purpose of which is to overcome the complex and time-consuming process of the existing chemical detection method in the prior art, the pollution situation cannot be observed in time, and it is difficult to monitor the actual operation status problem

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  • On-line detection device and method for heavy metal content in flue gas
  • On-line detection device and method for heavy metal content in flue gas
  • On-line detection device and method for heavy metal content in flue gas

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Such as figure 1 and figure 2 As shown, an online detection device for heavy metal content in flue gas includes a gas sampler 10, a belt-type active filter membrane 80, a filter membrane delivery unit 30, an XRF detector 40, a wireless communication unit 90 and a control unit;

[0027] The gas sampler is provided with a sampling chamber 20, the sampling chamber is divided into an air inlet chamber 21 and an air outlet chamber 22, an air inlet 23 is arranged above the air inlet chamber, and the air inlet and the sampling pipeline of the gas sampler Connected, an air outlet 24 is provided below the air outlet chamber, the air outlet is connected to the air pump, and the belt-type active filter membrane is located between the air inlet chamber and the air outlet chamber; the air inlet chamber and the air outlet chamber are docked, and there is a ...

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Abstract

The invention discloses an on-line detection device and method for heavy metal content in a flue gas, and the device comprises a gas sampler 10, a belt type active filter membrane 80, a filter membrane transport unit 30, an XRF (X-ray fluorescence) detector 40, a wireless communication unit 90 and a control unit; the whole device has the advantages of being simple and ingenious in structure, and easy to popularize; according to the detection method, an X-ray fluorescence spectroscopy method is used for qualitative and quantitative analysis of harmful elements in the flue gas, a burdensome chemical method test is avoided, work efficiency is improved, at the same time the test precision reaches ppm level; by design of the belt type active filter membrane, a simple method for solving the difficult transfer problem between the sampler collection and the detector is provided, and by design of materials of the belt type active filter membrane, enrichment and detection of multiple-state heavy metals can be achieved, and the detection is timely, and high in efficiency.

Description

technical field [0001] The invention relates to an online detection device and method for heavy metal content in flue gas. Background technique [0002] The non-ferrous metal pyrometallurgy process (including drying, sintering, roasting, smelting, blowing, fuming, volatilization, casting, etc.) produces a large amount of flue gas, and the heavy metal elements discharged with the flue gas stay in the atmosphere for a long time and will be transformed into As a highly toxic compound, it is harmful to human health and the ecological environment, so it is of great significance to monitor the heavy metal pollution in the flue gas. The traditional detection of particulate matter in heavy metal-enriched gases usually uses atomic absorption spectroscopy, atomic emission spectroscopy, atomic fluorescence spectroscopy, ultraviolet-visible spectrophotometry, etc. and other complex pre-treatments, and other methods except atomic emission spectroscopy generally can only test one element...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/223G01N1/40
Inventor 王旭明柴立元刘晋李劼刘业翔
Owner CENT SOUTH UNIV
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