| 摘要 |
<p>The procedure is for dismantling conveying and extracting plant underground in mines, and having a scraper chain conveyor. After dismantling the conveyor drive and the extracting machine a part of the conveyor structure including a number of single pans is moved longitudinally for access. When in position the pans are separated. To move the part of the conveyor structure the bottom chain of the conveyor and its end adjoining the dismantling position is secured. The part of the conveyor structure is then moved by hydraulic force acting against the secured bottom chain. Before dismantling the drive the scraper bard of the chain assembly are removed from its top run. Subsequently the top run of the chain is moved in the bottom run and then separated and secured in position.</p> |
