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首页> 外文期刊>Thermal engineering >Experience of Burning Sunflower Husks in the Kumertau CHP Pulverized Coal-Fired Boilers
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Experience of Burning Sunflower Husks in the Kumertau CHP Pulverized Coal-Fired Boilers

机译：Kumertau CHP粉煤锅炉燃烧向日葵壳的经验

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Abstract One of the TPP’s electricity cost price components is the fuel cost. An increase in the performance of TPPs is possible by using cheaper alternative coal, the main characteristics of which are close to those of standard quality coal. Recently, there has been a tendency for using other types of coal and nonstandard types of fuel in pulverized coal-fired boilers. Thermal power plants in Finland, France, and Denmark use wood raw-material and paper waste, as well as other biofuels, to generate electricity. The simplest and least costly way of cofiring coal and biomass is to mix them and then feed them into the furnace of a pulverized coal-fired, dry-bottom boiler. In this way, it is possible to burn approximately 5% of biomass in the mixture. In cyclone-furnace boilers, it is possible to burn at least approximately 20% of biomass; however, this will require significant boiler reconstruction. In grate stokers, 100% of the biomass can be burned, but fluidized bed combustion is only suitable for small TPPs. In Russia, oil extraction waste, namely sunflower husks, can be used as biofuel in the form of pellets. The article discusses the experience of burning nonconventional solid fuels in pulverized coal-fired boilers, the advantages and disadvantages of this type fuel, and the problems of arising in its utilization.
机译：摘要TPP的电力成本价格组件之一是燃料成本。通过使用更便宜的替代煤可以增加TPP的性能，其主要特征是靠近标准品质煤的主要特征。最近，在粉煤燃烧锅炉中使用其他类型的煤和非标准类型的燃料倾向。芬兰，法国和丹麦的热电厂使用木材原料和纸张废物，以及其他生物燃料，发电。 COFIRING煤和生物质的最简单和最昂贵的方式是混合它们，然后将它们送入粉煤燃烧干底锅炉的炉中。以这种方式，可以在混合物中燃烧约5％的生物质。在旋风炉炉中，可以燃烧至少约20％的生物质;但是，这将需要显着的锅炉重建。在炉排中，100％的生物质可以燃烧，但流化床燃烧仅适用于小型TPP。在俄罗斯，石油提取废料，即向日葵壳，可以用作颗粒形式的生物燃料。本文讨论了在粉煤燃烧锅炉中燃烧非共等固体燃料的经验，这种燃料的优点和缺点，以及利用时出现的问题。

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