| 摘要 |
<p>A hot-gas stream containing suspended solids (e.g., dust), generally from a cement-clinker kiln, is cooled and treated with a liquid (generally water) in a cooling tower after which the gas stream is subjected to electrostatic precipitation to remove entrained particles. Particles which settle in the tower are removed and dried by direct contact with a portion of the hot-gas stream branched from the main stream before it enters the tower. The dried particles are separated, preferably after comminution, in a cyclone from the partial stream which is returned to the main stream before it is subjected to electrostatic precipitation.</p> |
