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在鼓泡流化床悬浮空间一定高度加入适量的二次风而形成的旋涡流化床燃烧具有高效、低污染、投资少等优点,本文介绍了在一热态试验台上所进行的不同煤种、不同流化速度、床温、二次风率、喷口直径、入射角度等条件下燃烧特性规律的研究。试验结果表明:二次风加入后,流化床内的燃烧特性得到明显改善;细颗粒飞灰含碳量减小6～9个百分点;燃烧效率提高3～6个百分点.
In the bubbling fluidized bed suspension space at a certain height by adding the appropriate amount of secondary air to form a vortex fluidized bed combustion has the advantages of high efficiency, low pollution, less investment, this article describes a different thermal test bed carried out on different coal Study on the Characteristics of Combustion under Different Fluidization Velocity, Bed Temperature, Secondary Airflow Rate, Nozzle Diameter, Incidence Angle and so on. The experimental results show that the combustion characteristics of the fluidized bed are obviously improved after the secondary air is added; the carbon content of the fine-grained fly ash decreases by 6 to 9 percentage points; and the combustion efficiency increases by 3 to 6 percentage points.