| 摘要 |
The plant used has at least one crushing station (5,14), and at least one sieving station (5,9). Between the stations are conveyors (6,7,7',15,16). Crushed stone is taken fro the sieving stations to separate locations (1-4) according to size. When required, it is fed back to the crusher stations for re-crushing and further conveyance to the sieving stations. Because both long and short sieving operations are thus necessary, the unloading conveyors (10-12) are stopped and started as they feed material back for recrushing. This means that the are maintained fully fed, permitting continuous work. |
