80 Mesh Gypsum Powder Production Line: Key Equipment and Process Guide

80 Mesh Gypsum Powder Production Line: Key Equipment and Process Guide

Introduction

Gypsum powder, particularly in the 80 mesh (approximately 180μm) range, is a fundamental raw material for construction (plaster, wallboard), agriculture (soil conditioner), and various industrial applications. Establishing an efficient and reliable production line requires a deep understanding of the process flow and the selection of appropriate core equipment. This guide provides a comprehensive overview of the key stages and machinery involved in producing high-quality 80 mesh gypsum powder, focusing on achieving optimal balance between product quality, energy efficiency, and operational cost.

1. The Core Production Process Flow

A typical gypsum powder production line consists of several sequential stages, each critical to the final product’s consistency and quality.

The heart of the production line is the Grinding and Classification stage. For an 80 mesh product, the choice of grinding mill is paramount, as it directly impacts particle size distribution, energy consumption, and system stability.

2. Key Equipment Selection for 80 Mesh Grinding

Selecting the right mill requires matching equipment capability with production goals. For an 80 mesh (180μm) product, several mill types are suitable, each with distinct advantages.

2.1 The Ideal Choice: MTW Series European Trapezium Mill

For a production line targeting 80 mesh gypsum powder with capacities ranging from medium to large scale (3-45 tons per hour), the MTW Series European Trapezium Mill stands out as an exceptionally balanced and reliable solution. Its design is optimized precisely for the fineness range of 30-325 mesh, making 80 mesh production its core competency.

Why MTW Mill is Recommended for 80 Mesh Gypsum:

• Perfect Fineness Match: Its output range (30-325 mesh) centers perfectly on 80 mesh, allowing for stable, precise, and energy-efficient operation without over-working the material.
• High Efficiency & Durability: The mill features an anti-wear shovel design with combined blades and a curved profile, significantly reducing maintenance costs and extending grinding roller life—a critical factor for abrasive materials like gypsum.
• Superior Transmission: The integral bevel gear drive achieves up to 98% transmission efficiency. This not only saves energy but also reduces the equipment’s footprint and installation complexity.
• Optimized Airflow & Classification: The arc air duct and wear-resistant volute structure minimize airflow resistance and energy loss. This enhances the efficiency of the internal classifier, ensuring a sharp particle size cut and a uniform final product with minimal oversize particles.

2.2 For Ultra-Fine or Flexible Production: SCM Series Ultrafine Mill

If your operation requires the flexibility to produce finer grades (e.g., 200, 325, or even 800 mesh) in addition to 80 mesh, or if you prioritize extremely uniform particle distribution, the SCM Series Ultrafine Mill is a superior choice. While exceptionally capable at 80 mesh, its true strength lies in producing powders from 325 to 2500 mesh.

Advantages of the SCM Mill for High-Quality Gypsum:

• High-Precision Classification: Equipped with a vertical turbine classifier, it achieves precise particle size cutting, ensuring the finished 80 mesh product has no coarse powder mixing and excellent uniformity.
• Energy Efficient Design: It offers approximately 30% lower energy consumption compared to jet mills of similar capacity, making it a cost-effective option for high-quality powder production.
• Durable Grinding System: The use of special material rollers and rings, coupled with a shaftless screw grinding chamber design, ensures stable, long-lasting operation with minimal wear part replacement.

For a production line that may diversify its product portfolio into premium fine gypsum markets, integrating an SCM Ultrafine Mill provides unmatched versatility and product quality.

3. Supporting Equipment and System Integration

A successful production line depends on more than just the main mill. Key supporting systems include:

• Feeding System: A stable and controllable feeder (like the GZ series electromagnetic vibrating feeder) is crucial for maintaining consistent mill load and optimal grinding conditions.
• Drying System: If raw gypsum has high moisture, a dryer (rotary or flash dryer) may be integrated before or within the grinding circuit. Many modern mills like the MTW and LM series can handle moderate drying with hot air input.
• Dust Collection: An efficient pulse jet baghouse dust collector is essential for environmental compliance, product recovery (>99.9% efficiency), and clean plant operation.
• Electrical Control: A centralized PLC control system allows for automated operation, real-time monitoring of key parameters (current, temperature, pressure), and remote troubleshooting, ensuring stable and efficient production.

4. Process Optimization and Quality Control

To maximize the efficiency of your 80 mesh gypsum line, consider these points:

• Feed Size Control: Ensure the crusher provides a consistent and optimal feed size (e.g., ≤30mm for MTW mill) to reduce grinding circuit stress.
• Moisture Management: Control raw material moisture. Excess moisture can reduce mill throughput and lead to clogging.
• Classifier Speed Adjustment: The classifier rotor speed in the mill is the primary control for product fineness. Precise adjustment is key to hitting the 80 mesh target consistently.
• Regular Maintenance: Implement a preventive maintenance schedule for wear parts (grinding rollers, shovels, liner plates) based on operating hours and material abrasiveness to avoid unplanned downtime.

Conclusion

Building an efficient 80 mesh gypsum powder production line requires careful planning and equipment selection. The MTW Series European Trapezium Mill emerges as the most robust and efficient core grinder specifically designed for this application range, offering an ideal blend of productivity, energy savings, and low maintenance. For producers aiming at the highest product uniformity or future expansion into ultra-fine markets, the SCM Series Ultrafine Mill presents a powerful and flexible alternative. By integrating these core machines with well-designed crushing, drying, and dust collection systems, operators can establish a competitive, reliable, and profitable gypsum powder production operation.