Liming Heavy Industry's LUM Ultrafine Vertical Mill Facilitates Capacity Expansion and Efficiency Improvement of Ultrafine GCC Powder Preparation Projects

Ground Calcium Carbonate (GCC), commonly known as "heavy calcium carbonate", is a powdered material. It is processed and produced by grinding equipment using raw materials such as calcite, marble, limestone, dolomite, chalk, and shells. As an excellent filler, GCC powder has properties including high whiteness, easy coloration, and stable chemical properties. It has been successfully applied in fields like rubber, plastics, papermaking, and coatings.

As a material widely used in multiple industrial fields, the performance of GCC depends on several key technical indicators, which directly affect the application performance of ultrafine calcium carbonate.

Key Indicators of Ultrafine GCC Powder

A large-scale GCC manufacturing enterprise selected Liming Heavy Industry's grinding machines for its Phase I project. Advanced production equipment and sophisticated manufacturing processes ensured the high quality and high output of GCC powder, helping the enterprise achieve production and efficiency gains. For the grinding section of its Phase II project, the enterprise once again chose Liming Heavy Industry's grinding machines to meet the needs of business expansion and production technology upgrading.

Processed Material: Calcite

Equipment: Liming Heavy Industry's LUM Ultrafine Vertical Mill

Highlights of LUM Ultrafine Vertical Mill

Liming Heavy Industry's LUM Ultrafine Vertical Mill is a professional equipment for the ultrafine powder making industry. It integrates ultrafine grinding, classification, and conveying into one unit, developed with meticulous craftsmanship. The development is based on the company's nearly 40 years of experience in grinding mill R&D and manufacturing, built on the foundation of the LM Series Vertical Mill, and incorporates relevant process technologies of modern ultrafine vertical mills. Its technical indicators, including process parameters, mechanical performance, and finished powder quality, can all meet customer application requirements.

Core Advantages of LUM Ultrafine Vertical Mill

1. High Powder Selection Efficiency

It adopts a multi-rotor powder separator, and all rotors can achieve variable-frequency speed regulation. The fineness of finished products can be controlled within the selected range, from 45μm to 3μm. It can produce qualified products of multiple specifications simultaneously, with the content of 2μm particles reaching up to over 65%.

2. High Whiteness of Finished Products

The specially designed grinding curves of the roller sleeve and liner ensure higher grinding efficiency, enabling high finished product rate with one-time grinding. Meanwhile, the material layer grinding principle is adopted, resulting in high whiteness and purity of the finished products.

3. Intelligent Grinding Roller Pressure Control

It uses a PLC/DCS automatic control system for grinding roller pressure control. This ensures precise grinding pressure control, efficient and stable operation, and easy operation.

4. Stable Operation

Electronic limit and mechanical limit protection are adopted to prevent contact between the grinding roller sleeve and the grinding disc liner. This avoids violent vibration and destructive impact, ensuring stable and efficient operation.

5. High Degree of Automation

An automatic control system is adopted, enabling remote control and interlock protection. It features reliable operation and easy operation.

6. Convenient Maintenance and Environmental Protection

During maintenance, the grinding rollers can be turned out of the machine via a hydraulic device, providing a large maintenance space for convenient maintenance and reducing downtime losses. The equipment is fully sealed and operates under negative pressure, with low vibration during operation and no dust leakage.

Liming Heavy Industry has been deeply engaged in the grinding equipment field for nearly 40 years, taking technological innovation as its edge and quality service as its foundation. From single machines to complete line solutions, and from equipment delivery to full-process operation and maintenance, it always walks side by side with customers. In the future, Liming Heavy Industry will continue to concentrate on intensive R&D and refinement, empower the powder processing industry with better solutions, and jointly depict a new chapter of green and efficient development.