Application Case of LM Vertical Roller Mill: 400,000 TPY Chromite Powder Processing Project in Inner Mongolia

Prospects of the Chromite Industry in Inner Mongolia

Inner Mongolia is the core hub of China’s ferroalloy industry with abundant chromite resources. As a critical raw material for smelting stainless steel and special steel, ferrochrome quality directly determines the comprehensive performance of finished steel products. Chromite powder serves as the core precursor material for ferrochrome production. Its particle uniformity, moisture content control and stable supply exert a direct impact on reaction efficiency, recovery rate and energy consumption during smelting. Constructing large-scale, intensive and low-energy-consumption milling systems has become an important pillar for the high-end transformation of local industries.

To promote high-value utilization of regional mineral resources, a leading local enterprise has partnered with Liming Heavy Industry. Based on long-term industrial planning, they launched a 400,000 TPY chromite grinding project. Adopting LM Vertical Roller Mill tailored for the high hardness and strong abrasiveness of chromite, together with customized pulverization solutions, the project supplies stable, high-quality core raw materials for downstream high-end ferroalloy smelting, empowering the high-quality upgrading of the regional metallurgical industry.

400,000 TPY Chromite Powder Processing Project

In-depth cooperation between Liming Heavy Industry and a local leading enterprise. Focusing on the rigid demand for refined chromite processing, we build a professional, integrated and large-scale intelligent powder milling production line. With steady large-capacity output, the plant meets the rising demand for high-quality raw materials from the regional ferroalloy industry.

The complete production line covers the full process including crushing, drying, grinding, classification and conveying. All procedures are closely connected with a scientific and compact layout. Adopting closed continuous operation and intensive production mode, the plant achieves all-round upgrades in capacity, product quality and environmental performance. It serves as a standardized demonstration plant for refined chromite processing in this region.

Raw Material: Chromite

Finished Product: 200 Mesh

Capacity: 400,000 TPY

Equipment: Liming Heavy Industry LM Vertical Roller Mill

The project adopts the LM Vertical Roller Mill as the core grinding equipment. Leveraging the mill’s technical features and complete process design, it builds core competitiveness in three dimensions: energy consumption control, production management and eco-friendly operation, so as to fully unlock the production advantages of the project.

High Efficiency & Energy Saving | Lower Costs & Higher Productivity

The roller bearings of the equipment adopt forced thin oil lubrication with an independent oil station. Equipped with a hydraulic control system to apply and adjust the grinding force on materials, the mill features low wear and low energy consumption, fully meeting the raw material requirements of downstream ferroalloy smelting.

Intelligent Linkage & Precise Control

The fully automatic control system supports remote operation with easy handling. It precisely monitors material particle size, drying temperature and finished powder fineness throughout the process. Less manual intervention ensures continuous stable production and consistent product quality.

Eco-friendly Design | Low Carbon & Regulatory Compliance

The whole system operates under negative pressure without dust leakage. Matched with high-efficiency dust collectors, dust emissions are far below national standards, realizing harmonious coexistence of industrial production and ecological protection.

LM Vertical Roller Mill: Ideal for High-hardness Material Processing

To tackle the characteristics of chromite, such as high hardness, strong abrasiveness, fluctuating raw ore moisture and difficulties in large-scale continuous processing, Liming Heavy Industry developed the LM Series Vertical Roller Mill.

Integrating drying, grinding, classification and conveying in one unit, the mill adopts advanced grinding technology. It boasts remarkable strengths including high grinding efficiency, powerful drying capacity, easy fineness adjustment and low operation cost. Its key technical and economic indicators have reached advanced international standards.

LM Vertical Roller Mill Grinding Process

To satisfy the strict requirements of barite milling regarding equipment stability, process adaptability, eco-friendly and high-efficiency performance, LM vertical roller mill grinding process features optimized main mill structure, an original feeding and material distribution system, and an integrated low-resistance classifier to effectively cut energy consumption. Cloud data push function is available. The system can automatically adjust equipment parameters according to raw materials, realizing full-process intelligent control and stable operation. It is well suited for large-scale, standardized chromite grinding, delivering core process support for the ferroalloy industry to reduce costs, improve product quality and achieve green and efficient production.

Case:

The successful commissioning of the 400,000 TPY chromite powder processing project serves as another solid testimony to Liming Heavy Industry’s equipment strength and technical accumulation. From open gobi land to modern intelligent production lines, Liming Heavy Industry empowers the deep processing of western mineral resources with robust equipment to boost efficiency and product quality. We cooperate with industry partners to march toward a new era of higher efficiency and greater intelligence.