By increasing the length of Laval nozzle, an approach was presented to obtain higher particle velocity necessary for gas-solid separation in dusty gas of high temperature and high pressure.

• 提出了用增加缩放喷管长度的方法，使含尘高温高压气体中的灰尘颗粒获得实现气固两相分离所必需的更高动量的途迳。