BOTON delivered an ultra-long aramid conveyor belt with a single-line length of 10,050 m, supporting long-distance conveying on the 3-1 coal main roadway belt conveyor.
For Longhua Coal Mine’s non-caking coal, the aramid belt solution helped reduce conveying disturbance and secondary breakage, supporting a higher lump coal yield during long-distance transportation.
During a limited shutdown window, BOTON’s service team completed 27 finger splices, including special pulling-head sections, within 26 hours.
For a belt line exceeding 10 km, conventional steel cord belt weight can create significant non-productive power demand. A large share of motor power may be consumed by moving the belt itself rather than transporting coal.
Longhua Coal Mine produces high-quality non-caking coal known for its lump coal value. Over a 5 km single-section conveying route, unstable running, vibration and impact can cause secondary breakage, reducing the proportion of lump coal and affecting product value.
The customer required delivery of the ultra-long high-performance belt within 60 days, with the schedule overlapping the Spring Festival period. As a 10-million-tonne-class mine, Longhua Coal Mine also had a very limited shutdown window, requiring the splice work to be completed quickly while maintaining installation quality and splice reliability.
BOTON developed a customized cover rubber system for the underground operating environment at Longhua Coal Mine. The rubber compound was designed for wear resistance, flame resistance and impact resistance, while maintaining strong adhesion with the aramid reinforcement layer.
For the 4.2 m/s operating speed, BOTON applied finger splice technology instead of a conventional stepped splice structure. The finger splice design increases the effective bonding area and helps distribute load more evenly during high-speed operation, improving splice stability and reducing long-term maintenance risk.
BOTON applied an SW fabric structure to improve transverse rigidity and longitudinal modulus, helping reduce dynamic response and running disturbance during long-distance conveying. For installation, BOTON developed a special pulling-head structure combining aramid and steel cord reinforcement to improve pulling strength and stability. Digital production scheduling and a standardized 24-hour continuous splicing process further supported on-time delivery and reduced shutdown time.
Explore the production, installation and field performance of the Longhua Coal Mine aramid conveyor belt upgrade.
"*" indicates required fields
Whether you have a question about our services, a project idea, or just want to say hello, we're here to listen.
