CPC Hybrid Crusher

CPC Hybrid Crusher

Application

• Coarse size reduction of hard, medium-hard and soft material (lime stone, dolomite, magnesia, salt, coal, clay, oil shale etc.)
• Throughput up to5.500 mt/hr, depending on material characteristic and particle size
• Feed material size up to 1,500mm, product particle size down to 300mm possible, 50mm for secondary crushing stage
• Design of crushing teeth according to the material requirements (number, size, position, form, hardness)

Mode of operation

• Combination of the characteristic of the Double Roll Crusher with the performance of the Sizer
• Crushing of feed material by teeth of the two counter-rotating rolls. Successive comminution of larger lumps
• Product particle size regulated by precise setting of the roll gap
• Opening of the gap between the crushing rolls in case of overload (e.g. caused by an unbreakable foreign object) within milliseconds to let that piece pass thus avoiding a shut-down
• Crushing teeth in a spiral on the shaft equalizing torque peeks
• No clogging of the rolls by sticky material due to specifically designed scrapers
• Final product with small portion of fines due to limited speed of the rolls

Features

• Very long lifetime due to crushing teeth with replaceable picks made of tungsten steel. Replacing the picks, only, in case of wear, thus reducing spare part costs. Alternative: weld-on hard facing of the crushing teeth
• Single segment plates with the crushing teeth: no dismantling of the complete roll for replacing wear parts
• Bolting or clamping of the segment plates on the shaft. Typically massive solid shafts
• Reduced maintenance due to motor/gear unit drive (Alternative: V-belt drive). Speed control and overload protection installed
• Integrated flywheel equalizing torque peeks thus reducing required motor power
• No dust discharge due to specific shaft and housing sealings at the moveable roll. Operation with inert gas possible where applicable
• Guaranteed permanent parallel position of the crushing rolls even under partial overload (e.g. by strange material) due to hydraulic “Cross Junction” of the hydraulic working cylinders
• Extreme fast movement of the moveable crushing roll without critical cavitation of the hydraulic oil due to the design and dimensioning of the hydraulic elements
• Automatic central greasing of the shaft bearings
• Design of the discharge seal for easy and quick movement to a maintenance position
• Local Operating Panel (LOP) with PLC. Communication interface to the plant control units available