In coal-fired power plants, vertical mills (vertical coal mills) are the core equipment of the pulverizing system, mainly used to grind raw coal into coal powder that meets combustion requirements.
Vertical roller mill
● Features: roller-disc structure, high grinding efficiency, low energy consumption, suitable for medium and large power plants.
● Applicable scenarios: medium and high hardness coal, large processing capacity (20-300 t/h).
Medium-speed coal mill
● Features: spring-loaded pressure system, stable operation, long maintenance cycle, suitable for small and medium-sized power plants.
● Applicable scenarios: medium hardness coal, medium processing capacity (10-100 t/h).
Medium-speed roller mill
● Features: modular design, convenient maintenance, suitable for high-load operation.
● Applicable scenarios: large coal-fired units (above 300MW), adjustable coal powder fineness.
Key factors for selection
● Coal quality characteristics
Hardness, moisture, volatile matter, ash content, etc. need to match the mill design (e.g. MPS is suitable for hard coal, LM is suitable for medium coal).
● Processing capacity
Choose the mill model according to the capacity of the power plant unit (e.g. 600MW unit is usually equipped with 3-4 ZGM-133G mills).
● Energy consumption and efficiency
Give priority to models with low power consumption and high grinding efficiency (e.g. HP type saves 30-50% energy compared to traditional ball mills).
● Maintenance cost
Life of wear-resistant parts (e.g. grinding roller/grinding disc material), convenience of maintenance (e.g. hydraulic roller design).
● Environmental protection requirements
Sealing, noise control, dust leakage, etc. need to meet environmental protection standards.
Perfect after-sales service
Baichy Heavy Industry provides professional on-site guidance for installation, training of workers, and other services to ensure that customers can use the equipment smoothly.
The company has a complete after-sales service system, which can provide customers with timely technical support and equipment maintenance services to ensure the long-term stable operation of the equipment.
To prevent the rights and interests of customers from being infringed, Baichy Heavy Industry reminds customers: please contact our customer service staff through the official website of Baichy Heavy Industry , or add WhatsApp: 15093222637 ; or send an email to: [email protected] , we will get in touch with you as soon as possible and provide you with the most professional service in the industry.
