Kaolin, known as porcelain clay, is a fine white mineral used in ceramics, paper, building materials, and cosmetics.
Natural kaolin typically has a moisture content of 30–50%. Drying can enhance quality, saves energy and improve processing efficiency.
Want to improve kaolin quality and reduce energy consumption? Start by choosing the right clay drying machine.
Kaolin rotary dryer for sale
Drying kaolin is a key step in ensuring a high-quality product. Kaolin rotary dryer in FTM Machinery have given substantial profits for many factories in South America, Europe, and others.
The drying machine uses direct hot air contact to dry kaolin with a capacity about 20 t/h, 30 t/h and 50 t/h, suitable for small and medium drying plants.
Main features:
- The moisture content of dried kaolin clay can be as low as 0%, and the discharge can be adjusted.
- The heat recovery system reduces fuel consumption by 30%–40%, effectively lowering costs.
- Advanced hot air technology enables drying efficiencies exceeding 60%.
- The drying drum and other devices are made of 10 mm thick 20g boiler-grade wear-resistant manganese steel, extending the service life by 3–4 times.
- The drying process is less pollution. Dust removal system ensures the quality of the finished kaolin product.
Best-selling models of kaolin dryer: Get a quote
| Spec./m(Dia.×Length) | Shell Cubage(m³) | Capacity(t/h) |
| Φ2.2×12 | 45.6 | 9.7–12.2 |
| Φ2.4×22 | 99.5 | 21.2–26.5 |
| Φ3.0×25 | 176.6 | 37.7–47.1 |
How to dry kaolin clay?
Kaolin drying removes moisture from the clay to improve its stability and usability for various applications.
Clay dryer is a single-drum rotary dryer specially used for drying high-moisture clay. It is an excellent choice for drying kaolin.
Working principle of the kaolin clay dryer:
1. Feeding
The feeder continuously supplies raw materials. Kaolin enters the dryer drum via a conveyor. The drum is slightly inclined, with the feed end elevated.
The feed port is equipped to prevent heat loss and dust leakage, ensuring efficient thermal energy utilization.
2. Hot air drying
The kaolin is directly dried in the cylinder by rotary drying. Hot air is generated by a hot air furnace for drying the kaolin.
The inner wall of the cylinder is equipped with lifting plates to ensure full contact between the kaolin and the hot air, ensuring uniform heating.
3. Moisture evaporation
When drying kaolin, heat gradually penetrates the interior of the kaolin particles, causing the internal moisture to migrate to the surface and evaporate into the airflow.
The moisture content of kaolin is gradually reduced from about 30–50% to below 10% or even completely dried while maintaining uniform particle.
4. Discharge
The dried kaolin gradually cools at the end of the cylinder and moves to the discharge port. Then kaolin clay can be directly transported to a silo or to subsequent packaging.
The exhaust gas and water vapor are purified by a dust collector and then discharged by an induced draft fan, completing the kaolin drying process.
Customer cases: Kaolin drying projects
1. Malaysian kaolin drying
A building plant in Malaysia was facing a problem with high moisture content in its kaolin clay (approximately 60%), impacting storage and further processing efficiency.
To address this challenge, FTM Machinery provided a kaolin drying line equipped with a single-drum rotary dryer.
Drying results:
- The moisture content of the kaolin was reduced to 5%.
- The hourly output of the dried kaolin reached 10 tons.
- Production costs were significantly reduced by 70%.
The dried kaolin effectively solved high viscosity and difficult processing. The plant was very satisfied with the drying machine and service.
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2. Colombian clay drying
A Colombian customer producing bricks and tiles faced cracking and deformation issues. Locally mined clay had high moisture and a viscous texture, affecting quality and production.
To solve the problem, the customer installed high-efficiency clay dryer of our company.
Drying results:
- The moisture content of the raw clay was dried from 30% to 1%.
- The dried clay particles were uniform and highly plastic, increasing the density of the bricks and tiles by 20%.
- The drying system can operate for 24 hours, increasing production efficiency by 30%.
With auxiliary systems (hot air furnace, fan, dust collector, and conveyors), the drying line runs continuously and stably, meeting the high-efficient needs.
We have drying machines to meet various needs. Click here for inquiries.Contact us
Complete service support
As a professional clay dryer manufacturer, FTM Machinery provides customers with comprehensive services to ensure the stable operation of the drying production line.
- Installation and commissioning: Professional engineers will handle installation and commissioning, ensuring that your kaolin clay dryer is operational quickly.
- Operation training: Detailed training for you covering equipment operation, safety regulations, routine maintenance, and troubleshooting is provided.
- 24/7 service: Responses to technical questions are rapid via phone or online.
- Regular maintenance: Regular project follow-up and maintenance are provided to extend the life of the drying machine.
FTM Machinery is committed to ensuring that every kaolin drying line operates safely, efficiently and continuously, creating higher benefits for customers.
