| 摘要 |
A method and apparatus for processing an ore feed is disclosed. The ore feed includes sized ore portions and oversize ore portions. The apparatus includes a sizing roller screen having a plurality of adjacent rollers supported to provide interstices therebetween for permitting passage of the sized ore portions between the adjacent rollers. The apparatus also includes an opposing roller disposed generally above one of the plurality of adjacent rollers in the sizing roller screen. The sizing roller screen has an input for receiving the ore feed and is operably configured to cause the plurality of adjacent rollers to be rotated to cause a first sized ore portion to pass through the interstices while the ore feed is transported along the sizing roller screen to the opposing roller. The opposing roller is operably configured to be rotated to fragment at least some of the oversize ore portion between the opposing roller and the one of the plurality of adjacent rollers to produce a second sized ore portion, the second sized ore portion being sized for passage between the interstices.
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