Paddy Straw Dryer in Vietnam

Material Characteristics and Equipment Selection

The primary material processed is fresh paddy straw, collected directly from local rice farms in the Mekong Delta. Vietnamese paddy straw typically has high moisture content, ranging from 25% to 40%, depending on the weather at harvest. Without drying, straw becomes difficult to store and is prone to mold during long-term storage.

After careful consideration, the client selected the φ1.5*15 m rotary drum dryer model. Each unit is 1.5 meters in diameter and 15 meters long, with a single-layer drum suitable for moderate throughput. The dryer’s operating range includes a feed air temperature of 400–500℃ and an exhaust temperature of 70–80℃, which efficiently reduces moisture content to the desired 12–15% level.

The drum rotates at a speed adjustable between 3–12 rpm, ensuring uniform drying of irregular fibrous material like paddy straw. The selected model aligns perfectly with the facility’s seasonal processing volume, providing consistent output without overloading the existing infrastructure.

Operational Role and Benefits

The paddy straw dryers serve a critical role in the feed mill’s production chain. By reducing moisture in the raw paddy straw, the dryers ensure better pelletizing performance and storage stability for the straw-based livestock feed. Drying enhances material handling, prevents microbial growth, and enables long-term storage without loss of quality.

The RICHI rotary dryers are designed with high thermal efficiency and low maintenance requirements. The single-layer drum provides consistent contact between the material and hot air, while the adjustable rotation speed allows for precise control over drying time. The robust construction and heat-resistant materials guarantee long-term reliability, even under continuous operation.

After drying, the paddy straw is fed into straw pellet making machines to produce livestock feed pellets for cattle and buffalo, which are essential protein and fiber sources in the Vietnamese livestock industry. The straw-based feed not only utilizes agricultural by-products effectively but also supports sustainable farming practices by reducing waste.

Transportation and Delivery

The paddy straw dryers were shipped via sea freight to the Port of Ho Chi Minh City, the main international gateway for southern Vietnam. From there, they were transported to the feed mill in the Mekong Delta region. RICHI Machinery ensures careful packing and handling, minimizing the risk of damage during transit, even for large drum dryers.

Technical Features and Versatility

The RICHI paddy straw dryer in Vietnam is highly versatile and can process a variety of biomass materials, including wheat straw, corn stalks, rice husks, and other agricultural residues. Their rotary drum design ensures thorough and uniform drying, while the adjustable airflow and temperature control enable handling materials of different densities and moisture contents. Key features include:

• Efficient moisture reduction with uniform heat distribution
• Durable drum construction for continuous operation
• Adjustable drum speed for flexible drying times
• Low maintenance cost due to sealed bearings and robust frame design
• Capability to handle fibrous and irregularly shaped materials without clogging

Clients choose RICHI straw dryers for their reliability, flexibility, and high thermal efficiency. These machines are suitable for both feed mills and biomass energy facilities, allowing operators to expand their processing capabilities as business demands grow.

Customer Feedback

The client expressed satisfaction with the operational performance of the paddy straw dryers, noting that the units significantly improved the feed mill’s processing efficiency. According to the facility manager:

"The two φ1.5*15 m RICHI dryers have transformed our approach to handling paddy straw. The material comes out consistently dry, ready for pelletizing, and we no longer face storage issues with wet straw during the wet season. The machines are easy to operate, and maintenance is straightforward, which saves us both time and costs."

The client also appreciated RICHI’s pre-sales consultation and after-sales support, which included installation guidance, operator training, and process optimization tips for drying fibrous biomass. This personalized service helped ensure a smooth integration of the dryers into the feed mill’s existing setup.

Conclusion

The successful deployment of RICHI paddy straw dryer in Vietnam demonstrates the machines’ capability to handle large volumes of agricultural residues efficiently and reliably. By drying paddy straw before pelletizing, the facility enhanced the quality of livestock feed, reduced waste, and increased overall operational efficiency.

RICHI Machinery continues to support clients with professional consultation, customized equipment solutions, and long-term technical assistance. This project in Vietnam illustrates how standalone rotary drum dryers can play a pivotal role in sustainable feed production, turning locally abundant agricultural by-products into valuable, high-quality livestock feed.

Potential clients in Vietnam or similar agricultural regions are encouraged to contact RICHI Machinery to explore tailored solutions for biomass drying and feed production, ensuring optimal efficiency, cost savings, and sustainability in their operations.