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一、沸腾锅炉发展概况沸腾锅炉突出的优点是煤种适应性广泛和排烟易于净化。沸腾炉内灼热的料层占沸腾床内全部粒子的95％以上,床内热容量大,燃煤在床内的逗留时间又较长,故低品位、燃烧性能很差的。在其它炉型上无法燃烧的燃煤,在沸腾炉内仍能稳定地燃烧,这是我国沸腾炉能立足于煤炭、化工等部门和低质煤产区的主要原因。国家已作出决定,『七五』期间将拨款12亿,用于发展100万千瓦燃煤矸石的采用沸腾炉的坑口电厂。国外发展沸腾炉目前主要是解决烟气净化、满足环保要求这一目的。燃烧含硫量较高的燃煤时,可在沸腾床内加石灰进行炉内脱硫,而沸腾床内低温燃烧的特点,又是抑制NO_x生成的有效措施。这是国外研究沸
First, the development overview of boiling boilers Boiler prominent advantages are wide adaptability and easy to purify the smoke. Burning furnace burning material layer accounted for more than 95% of all particles in the boiling bed, the bed heat capacity, coal bed length of stay longer, so the low grade, poor combustion performance. The coal that can not be combusted on other furnaces can still be stably burned in the boiling furnace, which is the main reason that our country’s boiling furnace can be based on coal, chemical industry and low-quality coal producing areas. The government has decided that 1.2 billion RMB will be allocated during the “Seventh Five-Year Plan” period to develop a pithead power plant using a boiling furnace for developing 1 million kilowatts of coal gangue. Boiling furnace abroad is currently mainly to solve the flue gas purification, environmental protection requirements to meet this purpose. When burning coal with higher sulfur content, it can be desulphurized in the furnace by adding lime to the bed, while the low-temperature combustion in the bubbling bed is an effective measure to restrain the generation of NOx. This is a foreign research boil