| 摘要 |
<p>A rolling mill has a number of spray units (14) for spraying lubricant liquid on to the rolls (12, 13) and the work (15) being rolled. Each unit consists of a header tank (16) carrying and communicating with an array of spray nozzles (17). In addition to being supplied with heated lubricant liquid, the header tank (16) is supplied with steam via 26 in order that any blocked nozzle (17) may be cleared. The header tank (16) also has mounted therein a steam heating pipe (22) which serves to keep contained lubricant liquid at elevated temperature should the tank be temporarily isolated from the liquid supply.</p> |
