Coke oven group oxynitride detection method

A technology for nitrogen oxides and detection methods, which is applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as increasing the burden on enterprises and increasing equipment investment, and achieves the effect of saving money, reducing equipment operating costs, and saving investment.

Active Publication Date: 2014-12-24
鞍山翰玛传感技术有限公司
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Problems solved by technology

[0003] In the past, single-point detection methods were mostly used for the detection of nitrogen oxides in coke ovens, and each measurement point required a set of independent detection equipment. In this way, one coke oven group required two sets of nitrogen oxides analysis systems according to the process requirements , if environmental protection monitoring data is considered, one coke oven group needs three sets of nitrogen oxide analysis systems, which will undoubtedly greatly increase equipment investment and increase the burden on enterprises for expensive nitrogen oxide analysis systems

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  • Coke oven group oxynitride detection method
  • Coke oven group oxynitride detection method
  • Coke oven group oxynitride detection method

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.

[0021] See figure 1 , a coke oven group nitrogen oxide detection system is composed of a stainless steel sampling device, an intermittent sampling control valve group, a sampling controller, a nitrogen oxide analyzer, and a model calculation system.

[0022] The sampling controller controls the intermittent sampling control valve group. It uses timing division as the control mechanism and adopts the intermittent sampling method instead of the traditional continuous sampling method. Such a sampling control system can realize the measurement of multiple detection points by a single detection device. Through the intermittent sampling of the control valve group, the nitrogen oxide analyzer can accurately measure the nitrogen oxides in the measured gas. The model calculation system sends control parameters to the sampling controller to coord...

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Abstract

The invention discloses a coke oven group oxynitride detection method. The method comprises the following steps of: setting two sampling points on two sides of a chimney partition wall in two coke ovens of a coke oven group by adopting a time domain partition sampling technology, respectively carrying out time domain partition batch-type sampling on smoke of the coke oven A and the coke oven B, and respectively measuring the contents of oxynitrides in the coke oven A and the coke oven B and content of oxynitride of total smoke through a model operating system, wherein the contents of oxynitrides of the coke oven A and the coke oven B are used for providing data for technological operation guidance, and the content of oxynitride of the total smoke is used for providing data for environmental protection monitoring. The method provided by the invention uses one set of oxynitride detection equipment for realizing detecting oxynitrides in two ovens, therefore, the equipment investment is reduced, and the measurement accuracy is high.

Description

technical field [0001] The invention relates to a method for detecting nitrogen oxides in coke oven flue gas. Background technique [0002] The content of nitrogen oxides in the coke oven flue gas is one of the important detection parameters of the coke oven process. It is also an important indicator of the main emission gas pollutants for environmental protection emission monitoring. The monitoring of the thermal state of the coke oven, the fire adjustment and the tightness of the coke oven have important guiding significance. By detecting the content of nitrogen oxides in the coke oven flue gas, the current operating state of the coke oven can be judged, and according to its state Necessary process adjustments are made to make the process state of the coke oven tend to be reasonable, so that the coke oven always works under the best process state. [0003] In the past, single-point detection methods were mostly used for the detection of nitrogen oxides in coke ovens, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00
Inventor 李冶徐国庆
Owner 鞍山翰玛传感技术有限公司
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