MSW Dryer capacity 3TPH-50TPH

1.Product Introduction Rotary drum dryer

An MSW Dryer is an industrial drying system specifically engineered to process domestic waste, organic waste, and other forms of municipal solid waste. Its core objective is to achieve high-efficiency, large-scale reduction of material moisture content, creating the necessary conditions for downstream resource recovery—such as waste-to-energy incineration, composting, or RDF (Refuse-Derived Fuel) production.

2.Application Rotary drum dryer

• Incineration Pre-treatment: Drying municipal waste significantly increases its calorific value, reducing auxiliary fuel consumption during incineration and improving the stability and efficiency of the furnace.

• RDF (Refuse-Derived Fuel) Production: Dried combustible waste is processed to reach standard moisture levels and then formed into high-calorific, uniform fuel pellets or rods used to replace industrial fuels.

• Organic Waste Composting Pre-treatment: By lowering the moisture of food and garden waste, the dryer optimizes the carbon-to-nitrogen ratio, accelerating the aerobic fermentation process and improving compost quality.

• Sludge Co-processing: It can dry sewage sludge mixed with municipal waste to achieve synchronized disposal and significant volume reduction.

3.Working Principle Rotary drum dryer

The MSW Dryer typically operates on the rotary drying principle.

1. Feeding: Wet material enters a slowly rotating, slightly inclined cylindrical drum via a feeding system.

2. Material Dispersion: The internal walls are equipped with specialized lifting flights or "shoveling plates." As the drum rotates, these devices continuously lift and shower the waste, creating a uniform "curtain" of material.

3. Heat Exchange: Simultaneously, high-temperature hot air (sourced from burners or waste heat recovery systems) passes through the drum in either a co-current or counter-current flow. It makes full contact with the falling material, facilitating efficient heat and mass transfer that rapidly evaporates moisture.

4. Discharge & Filtration: The dried material is discharged at the end of the drum, while exhaust gases are purified through a dust removal system before being released.

4.Advantages Rotary drum dryer

• Broad Capacity Range: The 3–50 TPH range offers the flexibility to match different urban waste processing scales, from projects handling hundreds of tons per day to those handling thousands.

• High Drying Efficiency: The rotary drum design provides a massive heat exchange surface area and sufficient material residence time, which, combined with an optimized hot air system, ensures rapid and uniform drying.

• Strong Adaptability: The equipment is tolerant of fluctuations in particle size and initial moisture levels. Parameters such as drum speed, inclination angle, and air temperature/flow can be adjusted to suit varying material characteristics.

• Stable and Reliable Operation: Built with a robust structure and mature drive components, the system is designed to handle the corrosive and non-uniform nature of waste materials, ensuring long-term continuous operation.

• Versatile Thermal Sources: Heat can be supplied via natural gas, fuel oil, or steam. It can also be integrated with waste heat from the incineration plant itself to drastically lower operational energy costs.

• Modular & Scalable: Large-scale units often feature modular designs, facilitating easier transport, installation, and future capacity expansion.

5.Technical Specifications Rotary drum dryer

6.Our Solutions