锅炉低氮燃烧器改造对结焦特性的影响研究.docx

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锅炉低氮燃烧器改造对结焦特性的影响研究
摘要：
随着环境污染问题的日益加重，如何降低大气中的氮氧化物排放成为了全球范围内关注的热点问题。锅炉是很多工业生产过程中必不可少的设备，其中煤燃料的使用一直是一大源头。因此，降低煤燃料燃烧过程中的氮氧化物排放，对于减少大气污染具有重要意义。
本文主要研究了锅炉低氮燃烧器改造对结焦特性的影响。通过实验研究和数据分析，探讨了低氮燃烧器改造对锅炉燃烧过程中煤的燃烧特性和结焦特性的影响。实验结果表明，低氮燃烧器的应用可以有效降低煤燃烧过程中的氮氧化物排放，并且对煤的结焦特性有一定的影响。
本研究采用了实验室锅炉实验平台进行了一系列实验。首先，我们选取了不同类型的低氮燃烧器进行了性能测试，并进行了与传统燃烧器的对比分析。实验中我们测量了燃烧器的燃烧效率和排放量，并分析了燃烧过程中产生的氮氧化物浓度。结果显示，低氮燃烧器相较于传统燃烧器，能够显著降低燃烧效率和氮氧化物排放。
进一步，我们研究了低氮燃烧器改造对煤的结焦特性的影响。结焦是燃烧过程中煤的一个重要特性，对于锅炉的正常运行具有重要意义。实验结果显示，低氮燃烧器的应用可以降低煤的灰渣生成量，并减少结焦问题的发生。通过对煤的分析，我们发现低氮燃烧器的应用能够改变煤的燃烧过程和结构，减少煤的挥发分和焦炭生成量，从而降低结焦倾向。
此外，本研究还对低氮燃烧器改造的经济性进行了评估。通过计算燃料成本和设备改造成本，我们发现低氮燃烧器的改造不仅能够减少氮氧化物排放，还能够带来经济效益。虽然改造成本较高，但在长期运行中，可以通过降低燃料消耗和因氮氧化物排放而引发的惩罚性税收，使得改造投资得到回收。
综上所述，锅炉低氮燃烧器的应用可以有效降低燃烧过程中的氮氧化物排放，并对煤的结焦特性有一定的影响。通过研究低氮燃烧器的性能和经济性，为锅炉改造和大气污染治理提供了科学依据。
关键词：锅炉；低氮燃烧器；结焦特性；氮氧化物排放；煤燃烧
Abstract：
With the increasing environmental pollution, the reduction of nitrogen oxide emissions in the atmosphere has become a hot topic of global concern. Boilers are essential equipment in many industrial processes, with coal fuel being a major source. Therefore, reducing nitrogen oxide emissions during coal combustion is of great significance in reducing air pollution.
This paper mainly studies the influence of boiler low-nitrogen combustion burner modification on coking characteristics. Through experimental research and data analysis, the impact of low-nitrogen combustion burner modification on coal combustion and coking characteristics in boiler combustion process was explored. The experimental results show that the application of low-nitrogen combustion burner can effectively reduce nitrogen oxide emissions during coal combustion and has a certain influence on coking characteristics.
The laboratory boiler experimental platform was used for a series of experiments in this study. Firstly, different types of low-nitrogen combustion burners were selected for performance testing and compared with traditional burners. The combustion efficiency, emissions, and nitrogen oxide concentration during combustion were measured and analyzed. The results show that low-nitrogen combustion burners can significantly reduce combustion efficiency and nitrogen oxide emissions compared to traditional burners.
Furthermore, the influence of low-nitrogen combustion burner modification on coal coking characteristics was studied. Coking is an important characteristic of coal combustion and is of great significance for the normal operation of boilers. The experimental results show that the application of low-nitrogen combustion burner can reduce ash generation and reduce coking problems. Through coal analysis, it was found that the application of low-nitrogen combustion burner can change the coal combustion process and structure, reduce volatile matter and coke formation, and thus reduce coking tendency.
In addition, the economic feasibility of low-nitrogen combustion burner modification was evaluated in this study. By calculating fuel costs and equipment modification costs, it was found that the modification of low-nitrogen combustion burner can not only reduce nitrogen oxide emissions but also bring economic benefits. Although the modification cost is high, in the long-term operation, the investment can be recovered by reducing fuel consumption and the punitive taxes caused by nitrogen oxide emissions.
In summary, the application of boiler low-nitrogen combustion burner can effectively reduce nitrogen oxide emissions during combustion and has a certain influence on coal coking characteristics. By studying the performance and economic feasibility of low-nitrogen combustion burner, this study provides scientific basis for boiler modification and air pollution control.
Keywords: boiler; low-nitrogen combustion burner; coking characteristics; nitrogen oxide emissions; coal combustion