Research of Efficient Burning of Bark and Wood Fuel

2019 International Science and Technology Conference "EastСonf" Pub Date : 2019-03-01 DOI:10.1109/EASTСONF.2019.8725391

V. Lyubov, A. N. Popov, P. Maryandyshev

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引用次数: 1

Abstract

The efficient combustion of bark and wood fuel in the combustion furnaces of medium-pressure steam boilers “KM-75-40” and “Tampella-Carlson” which have worked more than 50 years were considered. The aim and objectives of the study were stated. Comprehensive energy survey of boilers was carried out when combustion of biofuel mixture with a moisture content of 56.7%, mass fraction of sawdust was about 42%. Components of the heat balance and emissions were determined. Ash particle size distribution for the content of combustibles was carried out. Porous structure of coke particles was studied using an Autosorb-iQ-MP automatic analyzer by nitrogen adsorption. A verage diameter, specific surfaces and pore volumes were determined. It is shown that carbon particles carried away from the combustion chambers of boilers with the size of 0.25 mm and larger are a sorbent similar in properties to activated carbons. Therefore, it is advisable and technically possible to separate this fraction and then use it to clean wastewater and exhaust gases. State of the enclosing surfaces of the boilers was checked by thermovision inspection. Recommendations are elaborated to improve the energy and environmental performance of the surveyed boilers.

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树皮和木材燃料高效燃烧的研究

考虑了运行50多年的中压蒸汽锅炉“KM-75-40”和“Tampella-Carlson”燃烧炉中树皮和木材燃料的高效燃烧。说明了研究的目的和目标。对含水56.7%、木屑质量分数约为42%的生物燃料混合燃料进行了锅炉综合能耗调查。测定了热平衡和排放的组成。对可燃物含量的灰分粒度分布进行了研究。采用Autosorb-iQ-MP自动氮气吸附法对焦炭颗粒的孔隙结构进行了研究。测定了平均直径、比表面积和孔隙体积。结果表明，从0.25 mm及以上的锅炉燃烧室中带走的碳颗粒是一种与活性炭性质相似的吸附剂。因此，将该馏分分离，然后用它来清洁废水和废气是可取的，在技术上也是可行的。用热视觉法检查了锅炉围护表面的状态。为提高所调查锅炉的能源和环境性能，提出了建议。

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2019 International Science and Technology Conference "EastСonf"

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