Automatic Gypsum Powder Production Line

Automatic Gypsum Powder Production Line

Introduction
An automatic gypsum powder production line is a fully integrated system designed to convert raw gypsum into finished powder suitable for various construction and industrial applications. Automation increases efficiency, reduces labor intensity, stabilizes product quality, and enhances production continuity. Hengshui Decheng Machinery & Equipment Co.,Ltd provides complete solutions tailored to capacity requirements, raw material conditions, and downstream product specifications. A modern automatic line involves several interconnected processes that operate through centralized control and monitoring systems.

1. Raw Material Feeding and Storage System

The process begins with the delivery of raw gypsum, which may include natural gypsum, desulfurization gypsum, or phosphogypsum depending on local sources. Material is unloaded into receiving hoppers equipped with dust-control structures.

• Belt and apron feeders transport gypsum steadily to the next stage.

• Magnetic separators remove metal contaminants.

• Buffer silos ensure stable material supply for calcination.

Automation is achieved through level sensors, flow meters, and frequency-controlled conveyors that maintain consistent upstream and downstream balance.

2. Crushing and Screening Section

Large gypsum blocks require size reduction before calcination.

• Jaw crushers or hammer crushers break material into manageable fragments.

• Vibrating screens classify crushed gypsum and return oversized pieces for reprocessing.

Automated monitoring controls crusher load, prevents blockages, and regulates conveyor speeds.

3. Grinding Unit

Consistent particle size distribution is essential for efficient calcination.

• Raymond mills, ball mills, or vertical grinding mills are used depending on production capacity.

• Cyclone collectors and pulse dust collectors capture fine particles and reduce environmental emissions.

Integrated automation maintains grinding pressure, classifier speed, and product fineness.

4. Calcination System

Calcination converts dihydrate gypsum (CaSO₄·2H₂O) into hemihydrate gypsum, forming the base material for gypsum powder.
Main calcination equipment options include:

• Rotary kilns

• Boiling furnaces

• Shaft or fluidized calciners

Process features include:

• Adjustable temperature profiles

• Controlled residence time

• Automatic fuel or heat input regulation

Advanced calcination systems supplied by Hengshui Decheng Machinery & Equipment Co.,Ltd incorporate material level detection, airflow adjustment, and temperature feedback loops to maintain stable stucco quality.

5. Stucco Cooling and Conveying

After calcination, the stucco must be cooled to a controlled temperature before further processing.

• Cooling conveyors or fluidized coolers reduce temperature uniformly.

• Dust-control systems ensure clean handling.
  Automated fans and temperature sensors maintain ideal cooling conditions.

6. Powder Storage and Packing

Calcined gypsum powder is transported via pneumatic lines or screw conveyors to storage silos.

• Silo aeration systems maintain good fluidity.

• Packing machines fill 25–50 kg bags or load bulk powder into tanker trucks.

Automatic weighing systems guarantee accuracy and stable outflow rates.

7. Centralized Control and Automation

A primary advantage of an automatic gypsum powder production line is complete integration:

• PLC control stations manage temperatures, pressures, flows, and motor speeds.

• SCADA monitoring displays real-time production data.

• Safety systems guard against overheating, overload, or abnormal flow.

• Automatic shutdown and start-up sequences improve safety and reduce operator intervention.

8. Environmental and Safety Systems

Modern gypsum plants must comply with strict environmental and safety requirements.

• Pulse jet dust collectors

• Bag filters

• Noise-reduction covers

• Automatic fire detection devices

Hengshui Decheng Machinery & Equipment Co.,Ltd integrates environmental controls into production lines to improve workplace conditions and reduce emissions.

Conclusion

An automatic gypsum powder production line is a highly coordinated combination of mechanical operations, thermal processes, and digital control systems. From raw material feeding to calcination, cooling, storage, and packaging, each stage contributes to producing consistent gypsum powder suitable for board production, plaster applications, and industrial use. Hengshui Decheng Machinery & Equipment Co.,Ltd offers complete automatic systems designed for efficiency, reliability, and stable long-term operation.