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在锅炉的能量平衡测试中,由于炉碴、漏煤及飞灰中含有未完全燃烧的可燃物(主要是碳)所造成的能量损失,称为固体不完全燃烧损失,习惯上用q_4表示.其数值因炉型、煤种及煤的颗粒组成和对锅炉的运行管理水平而异,差别较大,一般为10%～25%,有少数企业可能更高,达40%以上.因为这部分能量包含在锅炉的燃烧产物之中,和炉碴分离困难,因此很少进行二次燃烧.特别是飞灰,虽然其含碳量均在50%左右,但由于其粒径太小,不经处理,根本无法入炉再燃,大部分都作建材或废物处理了,形成能源浪费.
In the energy balance test of the boiler, the energy loss caused by the incomplete combustion of combustibles (mainly carbon) in the ballast, leaking coal and fly ash is called the incomplete combustion loss of the solid and is usually expressed by q_4. The values vary depending on the particle composition of the furnace, coal and coal, as well as the level of operation and management of the boiler, and vary greatly, generally between 10% and 25%, with a small number of enterprises likely to be as high as more than 40% Since the energy is contained in the products of the boiler combustion and is difficult to separate from the furnace slag, the secondary combustion is seldom carried out, and especially the fly ash has a carbon content of about 50%, but because its particle size is too small, Treatment, can not be burned into the furnace, most of the building materials or waste treatment, the formation of energy waste.