Efficient solution with drum dryer to separate solids and liquids
In industrial processes where it is necessary to remove moisture from a product on a large scale, the drum dryer has established itself as one of the most effective and versatile solutions. This system allows solids and liquids to be separated through the controlled application of heat, ensuring uniform, continuous drying that can be adapted to different industrial sectors.
From the agri-food industry to the mining or construction sectors, the drying trommel can be adapted to multiple materials and production needs, optimizing times and improving the quality of the final product.
How does a drying trommel work?
The drying trommel consists of a rotating cylinder made of carbon steel or stainless steel sheet, equipped with internal blades designed to promote the turning of the material.
Its structure is supported on the ground by roller beds, which allow the cylinder to rotate steadily and continuously. Motion is transmitted through a system consisting of a motor, pinion, and ring gear, ensuring robust and reliable operation even under demanding working conditions.
This mechanical design allows for continuous operation, high production capacity, and minimal maintenance.
The operation of the drying trommel is based on two fundamental elements:
- The constant rotation of the cylinder.
- The circulation of a hot air stream in isocurrent (in the same direction as the product's advance).
When the wet material enters the cylinder, the rotation of the trommel causes the product to impact against the inner blades and rise, then fall in a cascade. This movement promotes:
- Uniform exposure to heat.
- Efficient heat transfer.
- Evaporation of the liquid contained in the solid.
The hot air stream passes through the trommel in the same direction as the material, optimizing the drying process and reducing energy losses. As a result, effective separation of the solid and liquid is achieved, evaporating the moisture in a controlled manner.
Advantages of the trommel dryer in industrial processes
The use of a trommel dryer offers numerous advantages over other dehydration or drying systems:
1. Uniform drying
Thanks to continuous tumbling and internal distribution by blades, the product dries evenly, avoiding areas with excess or insufficient moisture.
2. High production capacity
The rotary design allows large volumes of material to be processed continuously, making it an ideal solution for large-scale industrial processes.
3. Material adaptability
It can be manufactured in carbon steel or stainless steel, allowing it to be adapted to different sectors and sanitary or corrosion resistance requirements.
4. Energy efficiency
The circulation of hot air in isocurrent improves heat transfer and reduces energy consumption compared to other less optimized systems.
5. Robustness and durability
The roller, motor, pinion, and crown system ensures a long service life and reliable operation even in demanding industrial environments.
Applications of the drying trommel
The drying trommel is used when it is necessary to remove liquid from a product by applying heat. Among its most common applications are:
- Drying of agro-industrial by-products.
- Drying of olive pits, as well as various processes related to the oil sector.
- Drying of agricultural products such as avocados.
- Applications in mining and construction for material treatment.
Its versatility allows dimensions, capacity, and materials to be adapted according to the type of product, the initial moisture content, and the final moisture content required.
Key factors in the design of a drying trommel
To ensure maximum performance, the design of a drying trommel must take into account:
- Product type and particle size.
- Initial moisture content and desired final moisture content.
- Working temperature.
- Hot air flow rate and characteristics.
- Residence time of the material inside the cylinder.
- Health or regulatory requirements.
Correct sizing is essential to ensure efficient drying without compromising the quality of the final product.
Success stories in drum dryer systems
Our experience in the design and manufacture of drum dryers has enabled us to develop tailor-made solutions for different sectors.
A notable example is the S-12000 INOX Drum Dryer Line, a system made entirely of stainless steel, designed to offer maximum resistance and efficiency in highly demanding industrial processes.
Another relevant case is the olive pit drying system, where the trommel reduces the moisture content of the by-product for energy recovery or industrial reuse, improving its performance and facilitating storage.
Likewise, the avocado dryer demonstrates the versatility of the trommel dryer in the agri-food sector, adapting to the specific characteristics of the product to ensure uniform and controlled drying.
These projects show how custom design and proper system engineering make a difference in terms of efficiency, productivity, and durability.
In short, the drying trommel is a key industrial solution when you need to separate solids and liquids using heat on a large scale. Its robust design, energy efficiency, and adaptability make it an indispensable tool in many industries.
Investing in a correctly sized drying trommel system not only improves process performance, but also optimizes operating costs and ensures higher quality of the final product. Find out more!