Customer: Shandong Lunan Cement Co. Ltd.
Tengzhou , Shandong Province,
Peoples Republic of China
Plant Description
Within the framework of a new 5000 tons/day production line at the Lunan Cement Plant in
China, HAZEMAG has supplied the crusher for the stationary crushing plant installed there.
The crusher in question is the biggest impact crusher in the Chinese cement industry and
handles 1,500 tons/hr. The rotor, shaft, bearings, hydraulics and control electrics were supplied fromGermany, whereas the housing, impact aprons and vee-belt pulleys were sourced
locally inChina.
The impact crusher is fitted with the patented HAZEMAG GSK-type rotor, an extremely robust,
heavy-duty cast steel unit with a high moment of inertia which enables the crusher to handle
even the largest of rocks whilst maintaining peak capacity without affecting the rotor‘s performance. Thanks to its rugged construction, it is also relatively insensitive to ingress of tramp
metal. The one-piece blow bars are characterised by their high exploitation rate (approx. 48%);
they are locked in position mechanically by means of securing wedges which are quick and
easy to disengage, and can be turned or changed effortlessly using the special device provided.
The impact aprons and the grinding path are hydraulically mounted and adjusted, whereby any
adjustments necessary can be effected at the touch of a button. On entry of any tramp metal
or during overloading of the crusher, the impact aprons retract with a controlled action, returning automatically and immediately to their pre-set position as soon as the situation returns to
normal. This greatly reduces any damage hazard and guarantees a product of unvarying high
quality, with the presence of undesirable oversize being more or less ruled out. The crushing
gap between impact aprons and blow bars can be simply re-adjusted to allow for progressive
blow bar wear. Other distinguishing features of the crusher are its smooth running and low
noise emissions.
The housing has hydraulically-actuated hinged sections front and rear which provide for easy
access to the internals and the wear parts. In addition to its outstanding efficiency and safety
of operation, the crusher is extremely easy to service and maintain.
Technical Data For The Impact Crusher:
Feed material: Limestone
Feed size: max. 1,500 x 1,100 x 1,100 mm
Capacity: Up to 1,500 tons/hour
Impact crusher: Type AP-PMH 2525
Inlet: height approx. 2,000 mm
width approx. 2,500 mm
Rotor diameter: 2,500 mm
Rotor width: 2,500 mm
Wt. of GSK rotor: 55,000 kgs
Blow bar unit wt.: 1,295 kgs
No. of blow bars: 6
Total crusher wt.: 163,000 kgs
Installed drive rating: 1,900 kW
