In the construction of asphalt pavement, the mixing and heating of asphalt materials is a crucial link. Its operating cost accounts for a large proportion of the overall production cost, with fuel expenses often reaching millions or even tens of millions of yuan.
Traditional asphalt mixing plants that use heavy oil as fuel generate substantial pollution after combustion, accompanied by incomplete combustion and unstable quality. In contrast, using clean coal powder as fuel offers numerous advantages: lower production costs, convenient ignition, sufficient combustion, safety and energy conservation, environmental friendliness, as well as non-corrosiveness and no damage to equipment. It features safe pollution-free storage and excellent stability, making it particularly suitable for regular and continuous production.
This project is a fuel pulverizing production line for the asphalt mixing plant of a well-known large enterprise. To meet the fuel demand of its multiple asphalt mixing equipment, further reduce fuel costs, and supply stable and high-quality coal powder products, the enterprise decided to build an in-house clean coal powder preparation production line within three months.
After comprehensive and in-depth field investigations in the early stage of the project, the user finally selected the Zenith LM vertical coal mill clean coal powder preparation production line, which boasts leading technology and the most extensive market application. The entire pulverizing line, from front-end feeding to back-end discharging, is fully designed by Zenith. The production site features a compact layout, rational design, neat and clean environment, and eco-friendly operation, achieving standardization, large-scale production and intelligent operation.
After the contract was signed, Zenith project manager formulated a reasonable and feasible construction plan. Covering the preliminary process design to the later equipment installation and commissioning, a complete coal powder preparation system was successfully built and put up in the factory within only 90 days, fully demonstrating the Zenith Speed. With outstanding high efficiency and high-quality delivery, Zenith delivers value to customers and helps them maximize economic benefits.
The complete set of Zenith LM Vertical Coal Mill system serves as the core of this project. It integrates crushing, grinding, drying, classification and conveying into one unit. The combined drying and pulverizing design realizes the one-step process of simultaneous grinding and drying.
This large-scale grinding equipment incorporates mature and reliable technological innovations. Equipped with a five-stage safety explosion-proof system including CO-O₂online monitoring, roller hydraulic devices and an automatic control system, the entire pulverizing process is environmentally friendly, safe, efficient, intelligent and high-yielding. Customers can make diversified selections according to requirements on output, fineness, investment budget and other indicators.
Technical Advantages of LM Series Vertical Coal Mill
01 Leading Technology and Low Investment Cost
It integrates crushing, grinding, drying, powder selection and conveying into one unit with compact layout. It can be arranged outdoors, effectively lowering overall investment cost.
02 Safe and Reliable Operation System
The system is equipped with safety and explosion-proof measures such as CO-O₂online detection and automatic CO₂fire extinguishing system. Its design is safe and reliable, complying with national and industrial standard specifications.
03 High Grinding Efficiency and Superior Product Quality
Adopting a specially designed roller and grinding table structure, together with hydraulic automatic pressurizing device for grinding rollers, it features large grinding area, high grinding efficiency and large output capacity.
04 Powerful Drying Capacity
Materials are conveyed by hot air, and the inlet air temperature can be adjusted according to material moisture content. It can handle feed moisture up to 15%, with final product moisture below 1%.
05 Low Operating Cost
The grinding roller bearing adopts forced thin oil lubrication. Equipped with a hydraulic roller tilting device, the grinding roller can be flipped out of the mill by hydraulic system during maintenance, providing ample maintenance space for easy upkeep and low operating cost.
06 Integrated Comprehensive Solution
A professional technical service team provides customers with general contracting services covering design, equipment supply and installation. The one-stop integrated solution saves time and effort for clients.
