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Smoke mercury emission monitoring system and method

A monitoring system and flue gas technology, applied in the direction of color/spectral characteristic measurement, sampling device, etc., can solve the problems of short detection time, fast monitoring speed, and inability to monitor continuously in real time, and achieve the effect of short measurement time and fast measurement speed

Active Publication Date: 2012-07-11
BEIJING SDL TECH
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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a flue gas mercury emission system and method to solve the problem of incapable real-time continuous monitoring in the prior art, so that the monitoring speed is fast and the detection time is short, and real-time continuous monitoring can be realized in the true sense

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  • Smoke mercury emission monitoring system and method
  • Smoke mercury emission monitoring system and method
  • Smoke mercury emission monitoring system and method

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] At present, when using the enrichment method to monitor the concentration of mercury in the flue gas, it takes a certain amount of time to capture the mercury in the flue gas, and this time is usually several minutes to tens of minutes. It also takes a certain amount of time, so this method cannot achieve real real-time continuous moni...

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Abstract

The invention discloses a smoke mercury emission monitoring system and method. The smoke mercury emission monitoring system comprises a sampling device, a pre-processing device and a mercury monitoring device, wherein the sampling device is used for collecting smoke when the system works; the pre-processing device comprises a catalytic reactor which is used for converting mercury in an oxidation state to the mercury in an element state; the mercury monitoring device comprises an ultraviolet light source, a measuring cell and a mercury analyzer; the measuring cell is used for absorbing ultraviolet lights through the pro-processed smoke; and the mercury analyzer is used for recording the absorbance of the absorption and calculating a concentration of the mercury according to the absorbance. According to the smoke mercury emission monitoring system disclosed by the invention, the mercury content in the smoke is directly monitored by using an ultraviolet absorption spectrum without a mercury gathering unit. The smoke mercury emission monitoring system has a fast measurement speed and can be used for continuously monitoring in real time in true sense.

Description

technical field [0001] The invention belongs to the field of pollutant discharge monitoring, in particular to a flue gas mercury discharge monitoring system and method. Background technique [0002] With the rapid development of global industrialization, environmental pollution and ecological damage are becoming more and more serious. Mercury is a highly toxic trace element with volatility and accumulation. If mercury enters water bodies, either directly or through atmospheric deposition, it accumulates in fish and animal tissues in its more toxic form, methylmercury. Methylmercury and dimethylmercury can also accumulate in algae, fish and other aquatic organisms. Bioaccumulation leads to concentrations of mercury in the bodies of predators at the top of the food chain thousands or even millions of times higher than in water, thereby enriching the entire food chain. People who eat large amounts of fish caught from the same mercury-contaminated area over a long period of t...

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Application Information

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IPC IPC(8): G01N21/33G01N1/14
Inventor 崔厚欣
Owner BEIJING SDL TECH
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