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循环流化床燃烧技术是80年代发展起来的一项新型燃烧技术。它是在第一代沸腾炉的基础上,为克服其飞灰含量高、燃烧效率低、埋管受热面磨损严重、脱硫剂的利用率低等固有缺点而开发的,因而也称作第二代沸腾炉。循环流化床燃烧方式主要是将烟气携带出炉膛的未燃尽的物料颗粒,经气固分离后再送回炉床反复燃烧,物料可多次循环。循环流化床燃烧技术具有以下技术特点: 1.燃烧效率高。由于灰及燃料多次循环,虽然燃烧温度只有850℃左右,燃烧效率却可达99％以上,完全可以与目前电站广
Circulating fluidized bed combustion technology is a new type of combustion technology developed in the 1980s. It is based on the first generation of boiling furnace, developed to overcome the inherent shortcomings of high fly ash content, low combustion efficiency, severe abrasion of heating surface of buried pipe and low utilization rate of desulfurization agent, which is also called as second generation Boiling furnace. Circulating fluidized bed combustion is mainly carried by the flue gas from the furnace unburnt material particles, after gas-solid separation and then sent back to the hearth combustion repeated material can be repeated. Circulating fluidized bed combustion technology has the following technical features: 1. High combustion efficiency. As ash and fuel cycle many times, although the combustion temperature is only about 850 ℃, the combustion efficiency is up to 99% or more, fully with the current power plant wide