Raw material VRM

In the metallurgical and chemical industries, the Raw Material VRM (Vertical Roller Mill) and metallurgical and chemical kilns form a complete, efficient material handling system. By integrating meticulous pretreatment with high-temperature conversion processes, they achieve high-value-added utilization of mineral resources. The Raw Material VRM's operating principle is based on the continuous rotation of a rotary kiln and high-temperature calcination, combined with the countercurrent flow of material and hot air to achieve complex physical and chemical reactions. This dynamic calcination method not only ensures uniform heating of the material but also significantly improves reaction efficiency.

Jiangsu Haijian Co., Ltd. is a professional VRM raw material manufacturer and company. We provide professional cement production equipment, industrial solid waste incineration equipment, and specialized mining and metallurgical application equipment. We are a major manufacturer, key backbone enterprise, and major export base for cement, power, environmental protection, and metallurgical mining equipment in China. As the core pretreatment equipment in metallurgical and chemical production lines, the Raw Material VRM (Vertical Roller Mill) integrates efficient grinding, precise homogenization, and waste heat utilization, becoming the key link between raw material preparation and high-temperature conversion. For particle size control, the VRM utilizes a hydraulic roller-pressing system to apply a powerful pressure of 50-200 kN/cm². Combined with a dynamic classifier with precisely adjustable speed, it can crush various ores to the ideal reaction size of 80-200 μm. This refined particle size control achieves a specific surface area of ​​3500-5000 cm²/g, enhancing subsequent chemical reactivity.

Daily maintenance requires a focus on real-time monitoring of equipment operating status. Operators should record roller bearing temperature, monitor hydraulic system pressure fluctuations, and collect data using vibration sensors during each shift. Lubrication management is a core component of daily operations. Roller bearings require weekly refilling with high-temperature grease, and reducer gear oil status must be checked monthly. The classifier rotor blades should also be regularly cleaned to prevent buildup that affects separation efficiency.