Calcium carbonate (CaCO₃) is one of the most widely used mineral fillers and coating pigments in the paper industry. It enhances brightness, opacity, and smoothness while reducing production costs. In Ivory Coast, the paper sector is expanding steadily, driven by growing demand for packaging, printing, and hygiene products. Establishing a local calcium carbonate grinding line with a capacity of 5–10 tons per hour (tph) can significantly benefit paper mills by ensuring a stable supply of high-quality ground calcium carbonate (GCC). This article provides a professional overview of selecting the right grinding mill for this application, with a focus on Shanghai Zenith Machinery Co., Ltd.’s advanced solutions.
Paper manufacturers typically require GCC with a fineness of 75–45 µm (200–325 mesh) for filler applications, and even finer (2–10 µm) for coating grades. The desired brightness must exceed 90% ISO, and the product should have controlled particle size distribution to optimize paper properties. For a 5–10 tph line, the grinding system must be efficient, energy-saving, and capable of consistent operation under the climatic conditions of Ivory Coast (tropical, with high humidity). Key factors include:
Among various grinding technologies, trapezium mills and medium-speed mills are ideal for medium-capacity GCC production. Shanghai Zenith Machinery Co., Ltd., a leading Chinese manufacturer of ore grinding equipment, offers two outstanding models perfectly suited for Ivory Coast’s paper industry: the MTW110Z Trapezium Grinding Mill and the MTM130 Medium-Speed Grinding Mill. Both machines are engineered to deliver high efficiency, low operating costs, and precise particle control.
The MTW series is a patented product known for its compact structure, long service life, and eco-friendly operation. The MTW110Z model achieves a capacity of 3–10 t/h, covering the required 5–10 tph range with ample margin. It uses a bevel gear drive, thin oil lubrication, and a curved air duct to reduce resistance and energy consumption. The final product fineness can be adjusted between 1.6 mm and 0.045 mm (10–325 mesh), making it suitable for both coarse filler and fine coating grades.
| Parameter | Value |
|---|---|
| Max. Feed Size (mm) | <30 |
| Final Product Size (mm) | 1.6 – 0.045 |
| Capacity (t/h) | 3 – 10 |
| Main Motor Power (kW) | 55 |
| Fan Motor Power (kW) | 55 |
| Ring Roller Number | 4 |
| Overall Dimension (L×W×H, mm) | 5960×3300×4800 |
The MTM series is an upgraded version of Raymond mills, offering higher grinding efficiency and lower energy consumption. The MTM130 model has a capacity of 6–11 t/h, perfectly matching the target range. It features a multi-cylinder hydraulic system for easy pressure adjustment and a self-cleaning classifier to ensure uniform particle size. With a maximum feed size of 30 mm, it can produce powder down to 0.045 mm (325 mesh). Its sturdy construction is ideal for continuous industrial use in hot and humid environments.
| Parameter | Value |
|---|---|
| Ring Roll Number (pcs) | 5 |
| Max. Feed Size (mm) | <30 |
| Output Capacity (t/h) | 6 – 11 |
| Main Unit Motor Power (kW) | 75 |
| Final Product Size (mesh) | 80 – 325 |
| Classifier Speed (r/min) | 84 – 182 |
Shanghai Zenith Machinery Co., Ltd. has decades of experience in designing and manufacturing grinding equipment for the global minerals industry. Our mills are exported to over 170 countries, including many African nations. Key advantages for Ivory Coast paper makers include:
A typical 5–10 tph GCC production line comprises a jaw crusher (optional if feed size is already small), a bucket elevator, a vibrating feeder, the grinding mill, a cyclone collector, a pulse bag filter, and a control cabinet. The raw calcium carbonate (usually marble or limestone) is crushed to <30 mm, then fed into the mill. The ground powder is separated by the classifier; coarse particles return to the grinding chamber, while fine powder is collected as final product. The entire system is negative pressure to prevent dust leakage.
For a calcium carbonate grinding mill dedicated to paper making in Ivory Coast with a target capacity of 5–10 tph, both the MTW110Z Trapezium Grinding Mill and the MTM130 Medium-Speed Grinding Mill from Shanghai Zenith Machinery Co., Ltd. are excellent choices. They combine proven technology, low energy consumption, and flexible fineness adjustment to meet the stringent requirements of the paper industry. Contact our sales team today for a tailored quotation and process design for your project.
