论文部分内容阅读
自1975年到1980年,国际上许多工业国举行过两次流态化燃烧学术交流会议。五年来流态床燃料技术有了很大的发展,已经由实验室实验、长期运行试验发展到工业应用。一、流态床燃烧的原理和特点固体颗粒在一定状态的气流作用下会运动,风沙就是一例。这常见的现象中的道理即建立流态床的基本思想。设想在一个容器中,沙网上面有一层沙粒,空气从沙网下面向上吹,当气流速度很小时,气体从沙的缝隙中穿过,沙粒不发生运动;当气流速度增加到某一限度时,沙粒被吹得向上运动,沙粒被气流“托”住,在一限定的空间内杂乱运动。充满固体颗粒的这一
From 1975 to 1980, many industrialized countries held two conferences on fluidized combustion academic exchange. Fluidized bed fuel technology has been greatly developed over the past five years and has been developed from laboratory experiments and long-term operation tests to industrial applications. First, the principle and characteristics of fluidized bed combustion Solid particles will be under the action of a certain state of the air flow, sand is an example. The common truth in this phenomenon is the basic idea of establishing a fluid bed. Imagine, in a container, a layer of sand above the sand net, air blowing upward from below the sand net, gas flowing through the gaps in the sand when the air velocity is low, and no movement of the sand. When the air velocity increases to some When limited, the sand particles are blown upwards and the sand particles are “torpedoed” by the airstream, cluttering in a confined space. This is filled with solid particles