300 t/h Crusher Plant - Romania

Footage of our 300 T/S capacity crushing plant in Romania.

In the recording the line is followed while processing granite. With hard and abrasive material the output at the crusher discharge looks more angular; a shaping stage is added at the end of the line for grain shape.

Granite is demanding on the wear side.

Since the impact elements are consumed quickly, crushers that work by compression come to the fore; the decisive item in operating cost is not crusher power but wear part consumption.

That hardness is also the reason granite is preferred in road construction: in the asphalt wearing course an aggregate is wanted that resists being polished by traffic.

Stages of the line

Run-of-mine material is discharged into the feed hopper by excavator or truck; the vibrating grizzly feeder directs the coarse fraction to the primary jaw crusher while bypassing the fines further down the line. The primary discharge goes to the secondary crusher and from there to the screening unit; oversize retained on the screen is returned in closed circuit to the tertiary or secondary crusher. Product fractions are carried to their own stockpiles by separate conveyors.

What determines the capacity

The catalogue figure of 300 t/h describes the output obtained with dry run-of-mine material of a suitable feed size and with uninterrupted feeding. Actual site output varies with moisture content, clay content, feed size distribution, how narrow the target fractions are and how much material is recirculated to the crusher in closed circuit. In wet and clayey material screening efficiency drops, so the same line runs at a lower tonnage; in that case a wet screening or washing stage is placed ahead of the line.

Operating notes

In hard, abrasive material a cone crusher instead of an impact crusher noticeably lowers wear cost. Consumption of wear parts (jaw plates, blow bars, mantle and concave, screen mesh) depends on the abrasiveness of the rock and is the largest single item in operating cost. Regular lubrication, belt tension checks and monitoring the screen surface for blinding prevent the majority of unplanned stoppages.

Project-based solutions

Once you share the rock type, feed size and target fractions of your quarry, our engineering team prepares the flow diagram and the capacity calculation. You can review all line configurations on the products page and contact us through the contact page for a quotation. In hard rock such as granite and basalt, compression crushing is preferred.