Some major advantages of roll crushers are they give a very fine product size distribution and they produce very little dust or fines. Rolls crushers are effectively used in minerals crushing where the ores are not too abrasive and they are also used in smaller scale production mining of more abrasive metal ores, such as gold. Coal is probably the largest user of roll crushers, currently, though. Coal plants will use roll crushers, either single roll or double roll, as primary crushers.
Usually, these crushers will have teeth or raised forms on the face of the roll. Roll crushers used for minerals and metal ores have smooth faced rolls.
This series of crusher is used for crushing of ores and rocks, the advantages are: reliable structure, high efficiency, easy-to-adjust and economical. The safety spring system is the overload protection device, which makes foreign material goes through the machine without bring any hurt to it. The sealing modes are oil and water, which segregate the stone powder and lubricting system. The crushing chamber is decided by the purpose of ore, the standard model is suitable for medium crushing; the medium model is suitable for fine crushing and the short head model is suitable for fine crushing.
It is particularly suitable for the size requirements of the circulating fluidized bed boiler fuel, and the special broken equipment designed for the series of circulating fluidized bed boiler power plants and washing plant, coal handling system design.
Roll Crusher is mainly composed of the main components of the main and secondary drive gear box, chassis, frame, crushing roller, gas-liquid buffer tank and motor and other components. Motor by the large and small pulleys and V-belt drive the main gear box drive shaft, its large pulley and the driving shaft connection does not overload the safety pin device to play the role of motor protection overload.
Raw coal through the feed inlet into the crusher chamber, enter the force of gravity between the two on stage crushing roll.. Materials after the early pieces continue to fall under the force of gravity to the next stage crushing between rolls of materials in the same working principle is again broken. Roll the crushing effect of splitting, broken materials with uniform size, less powder.