电站锅炉配煤掺烧试验研究

发布时间：2018-11-12 18:31

【摘要】：随着我国国民经济的快速发展,我国也成为了国际上煤炭能源消耗量较大的国家之一,煤炭能源的大肆消耗,不仅会对我国环境造成严重的破坏,大气受到严重的污染,对经济发展造成成本浪费,带来更多的经济损失。作为我国电力工业的重要组成部分,电站的生产投入主要以动力煤为其重要的使用能源,随着生产量的加大,动力煤消耗量的增多,我国煤价的日趋提升,对电站的生产发展有着很大的影响,大大的增加了电站的经济成本。在当前我国大力倡导节能减排的背景下,电站降低动力煤的能耗量成为了当前社会发展的热点话题。为了更好的解决发电成本的问题,提高电站的经济效益,配煤掺烧技术广泛应用,在降低煤价、提高效益方面起到很大的促进作用。本文对此进行深入的研究,主要以某电站锅炉特定机组为研究对象,对配煤掺烧技术进行试验研究,从而确定了适合某电站锅炉机组需求的配煤掺烧方案,进一步确保机组的生产安全,降低企业生产经济成本。对此,本文首先分析配煤掺烧技术在国内外的研究现状,指出我国电站对配煤掺烧技术研究的迫切性;其次,从配煤掺烧的概念、原则及应用等方面进行阐述,深入分析配煤掺烧技术的核心;然后,以实际机组为例,提出锅炉配煤掺烧的方案及试验方法确定采用“分磨制粉,直吹炉内掺烧”方式,硫份为0.4%的塔山煤和0.3%的褐煤进行掺配,掺配比例为3:1,可实现5000大卡的热量,并通过制粉系统的调整,增加机组效率;最后,通过试验结果论证,该电站锅炉机组配煤掺烧的方案具有一定的可行性。
[Abstract]:With the rapid development of our national economy, our country has also become one of the countries with relatively large consumption of coal energy in the world. The wanton consumption of coal energy will not only cause serious damage to the environment of our country, but also cause serious pollution to the atmosphere. To the economic development causes the cost waste, brings more economic losses. As an important part of the electric power industry in our country, the production input of the power plant mainly takes the thermal coal as its important use energy. With the increase of the production and the consumption of the thermal coal, the coal price of our country is rising day by day. It has a great influence on the production and development of the power station, and greatly increases the economic cost of the power station. Under the background of energy saving and emission reduction, reducing the energy consumption of thermal coal in power plant has become a hot topic in the current social development. In order to solve the problem of power generation cost, improve the economic benefit of power station, and widely use coal blending technology, it plays a great role in reducing the coal price and improving the efficiency. This paper makes a deep research on this, mainly takes a specific unit of a power station boiler as the research object, carries on the test research to the blending coal mixing burning technology, thus has determined the blending coal mixing burning plan which is suitable for a power station boiler unit demand. Further ensure the production safety of the unit, reduce the economic cost of production. In this paper, firstly, this paper analyzes the research status of blending coal blending technology at home and abroad, and points out the urgency of research on blending coal blending technology in power stations in China. Secondly, the concept, principle and application of blending coal blending are expounded, and the core of blending coal blending technology is analyzed. Then, taking the actual unit as an example, the scheme and test method of mixed combustion of boiler blending coal are put forward. The method of "separate grinding pulverized coal, mixed combustion in direct blowing furnace" is determined, with 0.4% sulfur of Tashan coal and 0.3% of lignite mixed with each other. The blending ratio is 3: 1, which can achieve 5000 calories and increase the efficiency of the unit through the adjustment of the pulverizing system. Finally, it is proved by the test results that the scheme of blending coal in the boiler unit is feasible.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM621.2

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