In recent years, Vietnam has witnessed substantial growth in the energy and industrial sectors, particularly in coal-fired power generation. As environmental regulations become increasingly stringent, the demand for efficient flue gas desulfurization (FGD) technologies has surged. One of the critical materials in the FGD process is gypsum, a byproduct of desulfurization that can also be recycled into a valuable resource for the construction industry. To ensure the quality and fineness of gypsum powder used in desulfurization, advanced grinding mills are essential.
Shanghai Zenith Machinery Co., Ltd., a leading Chinese manufacturer of ore grinding and industrial powder processing equipment, offers highly reliable and efficient grinding solutions. With decades of experience, Zenith has developed various models suitable for different production capacities and material specifications — including the 20–30 TPH gypsum grinding system for desulfurization in Vietnam.
Desulfurization is the process of removing sulfur dioxide (SO₂) from flue gases that result from burning fossil fuels. The wet limestone-gypsum process is one of the most widely used FGD techniques in the world. In this method, sulfur dioxide reacts with limestone slurry to generate gypsum (CaSO₄·2H₂O). The produced gypsum can be reused in manufacturing materials such as plasterboards, cement retarders, and fertilizers.
However, to achieve optimal desulfurization performance, high-quality gypsum with fine particle size is required. This is where a gypsum grinding mill becomes crucial. It grinds the raw gypsum to meet the particle size standards required for reaction efficiency and product quality. In Vietnam’s desulfurization projects aimed at 20–30 tons per hour (TPH) capacity, precision grinding mills play an integral role in achieving desired results.
Producing 20–30 TPH of gypsum powder for desulfurization requires a machine that can handle continuous heavy load operations, ensure stable output, and maintain strict fineness control. The ideal grinding system should have the following characteristics:
Considering these requirements, Shanghai Zenith Machinery Co., Ltd. offers two state-of-the-art grinding mills that perfectly fit this production range and application — the MTW Trapezium Grinding Mill and the LM Vertical Grinding Mill.
The MTW Trapezium Grinding Mill is one of Zenith’s flagship products, well-suited for high-performance gypsum grinding for desulfurization. It adopts advanced technology combining European grinding standards with efficient air flow systems and dust collection setups. Its trapezium-shaped roller and curved surface design ensure higher grinding efficiency and stability under heavy load operations.
For a production capacity requirement of 20–30 TPH, the model MTW175G or MTW215G is highly recommended. These models are known for their precise control, high capacity, and fine powder output that suits desulfurization-grade gypsum specifications.
| Model | Max. Feed Size (mm) | Final Size (mm) | Capacity (t/h) | Main Motor (kW) | Fan Motor (kW) |
|---|---|---|---|---|---|
| MTW175G | <40 | 1.6–0.045 | 9.5–25 | 160 | 200 |
| MTW215G | <50 | 1.6–0.045 | 15–45 | 280 | 315 |
Advantages:
For those seeking an even more integrated approach, the LM Vertical Grinding Mill is another outstanding choice for gypsum desulfurization processing lines. It combines grinding, drying, classification, and conveying into a single compact system. The LM mill’s design minimizes power consumption, reduces wear, and ensures consistent output quality.
The recommended models for a 20–30 TPH FGD gypsum line are LM130K and LM220X-GX. These models offer flexibility for standard gypsum powder production and ultrafine applications. The LM Vertical Grinding Mill’s sealed design and efficient separator make it an excellent choice for operations emphasizing environmental compliance.
| Model | Plate Diameter (mm) | Capacity (t/h) | Output Fineness (μm) | Max Feed Size (mm) | Main Motor (kW) |
|---|---|---|---|---|---|
| LM130K | 1300 | 10–28 | 170–40 | <38 | 200 |
| LM220X-GX | 2200 | 15–30 | 325–600 mesh | <40 | 560 |
Advantages:
A typical desulfurization gypsum grinding system in Vietnam could be configured as follows:
In a recent project in northern Vietnam, a 25 TPH gypsum grinding line using the MTW175G mill was successfully commissioned to supply fine gypsum powder for an FGD system. The plant operates continuously with energy efficiency improvements of more than 15%, and the final powder reaches a fineness of 250 mesh. The use of advanced pulse dust collectors ensures that emissions remain well below the local environmental standards.
Compared with traditional Raymond mills, the MTW Trapezium mill in this application demonstrated:
Zenith’s advantage lies in its combination of technological innovation, professional expertise, and integrated solutions. The company has invested heavily in R&D to create energy-efficient, automated grinding systems with minimal maintenance requirements. Its global service network ensures quick installation, commissioning, and after-sales support for customers in different regions, including Vietnam.
Key strengths include:
The adoption of high-quality gypsum grinding mills for desulfurization projects in Vietnam significantly contributes to environmental protection, efficient energy utilization, and sustainable industrial development. For a 20–30 TPH production line, the MTW Trapezium Grinding Mill and the LM Vertical Grinding Mill from Shanghai Zenith Machinery Co., Ltd. represent two of the most effective and sustainable solutions. Both models are designed to deliver consistent performance, high efficiency, and superior powder quality, making them ideal for Vietnam’s evolving power and construction sectors.
As environmental regulations continue to tighten across Southeast Asia, investing in state-of-the-art grinding technology not only aligns with compliance requirements but also ensures long-term operational profitability. With its solid engineering foundation and global service network, Shanghai Zenith Machinery Co., Ltd. continues to lead the way in providing innovative, reliable, and environmentally friendly grinding solutions worldwide.
