Energy Saving Vertical Roller Mill for FGD Gypsum

Product Features

1. Energy-Efficient

- Consumes 40–50% less energy than ball mills

- High single-machine capacity, supports off-peak power use

- Advanced vertical grinding technology boosts competitiveness

2. Easy & Low-Cost Maintenance

- Hydraulic arm swings out for easy roller access

- Roller sleeves reversible to extend wear life

- No bed buildup needed; no-load start-up

- Wear parts made from durable materials

- Siemens PLC enables remote, unmanned operation

3. Low Investment Cost

- Integrates crushing, drying, grinding, conveying

- Compact design, 50% footprint of ball mills

- Suitable for outdoor installation, reducing civil costs

4. Stable Product Quality

- Short residence time ensures consistent quality

- Uniform particle shape, narrow size distribution, good fluidity

5. High Reliability

- Roller limiter prevents vibration during operation

- Advanced seal improves explosion suppression and reduces oxygen

6. Eco-Friendly Operation

- Low vibration and noise

- Fully sealed, negative pressure system—zero dust leakage

Technical Specifications

Working Principle of Vertical Mill

1. The motor drives the grinding disc to rotate via the reducer. Meanwhile, material falls from the feeding port to the center of the rotating grinding disc, and hot air enters the grinding chamber through the air inlet.

2. Under the action of centrifugal force, the material moves to the edge of the grinding disc. When it passes through the circular groove on the disc, it is crushed by the grinding roller.

3. The crushed material is picked up by the high-speed airflow at the edge of the grinding disc. Large particles directly fall back onto the disc for re-grinding.

4. The material carried by the airflow then passes through the dynamic-static separator. Under the action of the rotating rotor, coarse powder falls back to the grinding disc for re-grinding, while qualified fine powder is carried by the airflow.

5. The qualified fine powder is collected by the collecting device and becomes the final product.

6. For materials containing moisture, they are dried during contact with the hot air, ensuring the final product meets the required moisture content.

Application Scenarios

Industrial buyers need to see equipment performance under real‑world working conditions. The application scenarios of gypsum vertical roller mill can be subdivided as below:

1. FGD Gypsum（Desulfurization Gypsum）Scenario: Comprehensive utilization of flue‑gas desulfurization gypsum from power plants

Customer Concerns: Large throughput, stable continuous operation, finished product for gypsum board / plastering gypsum

Suggested reference note: 30t/h vertical roller mill for FGD gypsum applied in a power plant; 8000 hours annual continuous operation; 95% passing rate at 200‑mesh fineness

2. Building Gypsum

Scenario: Gypsum board production line, plastering gypsum powder manufacturing

Customer Concerns: Uniform fineness, stable whiteness, energy consumption control

3. Phosphogypsum

Scenario: Resource recycling of by‑product gypsum from phosphate fertilizer plants

Customer Concerns: Corrosion‑resistant material, adaptability to variable feed moisture

Why Choose Us?

1.  Professional Manufacturer

    With years of focus on vertical mill R&D and production, we offer stable, high-quality grinding solutions to global clients.

2.  Customized Solutions

    We tailor schemes based on your materials, capacity, fineness and budget, providing full technical support and one-stop production lines.

3.  Strict Quality Control

    Rigorous inspections from raw material to delivery ensure our products meet international standards and deliver long-term reliability.

4.  Comprehensive After-Sales

    From installation & training to maintenance, our global team ensures quick responses and smooth operation.

5.  Competitive Price

    As a direct manufacturer without middlemen, we provide cost-effective equipment with maximum return on investment.

Case

★ Project Name: Nigeria Annual Production 200000 Tons Natural Gypsum Calcination Production Line ★ Type of processed material: natural gypsum ★ Production capacity: ≥ 35t/h ★ Product fineness: 120 mesh, 90% pass

FAQ

Typical Technical Questions about Gypsum Vertical Roller Mill:

Q1: What is the maximum moisture content of gypsum that the vertical roller mill can handle?

A: The standard configuration handles feed moisture ≤5%. For higher‑moisture materials (e.g. FGD gypsum with 10‑15% moisture), a hot‑air drying system can be equipped to realize simultaneous drying inside the mill.

Q2: What is the service life of grinding rollers and grinding table liners?

A: Made of high‑chromium cast iron or ceramic composite materials. Under normal gypsum grinding conditions, the service life of grinding rollers ranges from 6,000 to 10,000 hours, while liners last 12,000‑18,000 hours. Actual service life depends on material abrasiveness and fineness requirements.

Q3: Can the output fineness be adjusted?

A: Yes. The fineness can be adjusted within the range of 80‑600 mesh by variable‑frequency control of the classifier rotating speed, without shutdown or component replacement.

Q4: What are the differences between vertical roller mill and ball mill for gypsum grinding?

A: The vertical roller mill system features 30‑40% lower power consumption, over 50% smaller footprint and lower noise (<85 dB), with more flexible output fineness adjustment. However, it has certain requirements on feed particle size and feed moisture.

We can provide you with:

Free quotation for gypsum vertical mill

Customized solutions for gypsum processing projects

Detailed technical parameters and product catalogs

On-site installation, commissioning and after-sales service

Contact us now to get the best price and professional support for your gypsum grinding project!