一、喷吹装置中粉气流的状态现有冶金工业中的喷吹装置,大多是从化工等行业的气力输送设备演变而来,其理论基础是控制气流速度以达到所需要的粉气流股的形态。不同气体流速下,典型的流股形态有以下四种:: ①受阻气体流动:当气体流速很低时,气体通过粉料间隙流动受到一定阻力,粉料不 First, the status of the powder blowing device airflow In the existing metallurgical industry, the injection device, mostly from the chemical industry, pneumatic conveying equipment evolved from its theoretical basis is to control the air velocity in order to achieve the desired flow of powder form. Different gas flow rate, the typical flow form has the following four: ① blocked gas flow: When the gas flow rate is low, the gas flow through the powder gap by a certain resistance, the powder is not