Foundry sand dryer
The Best Choices for Your Project
Professionally customize foundry sand dryers for customers and provide foundry sand dryer solutions
- Production capacity: 1-20T/H.
- Customizable stainless steel dryer
- Dryer length: 8 meters to 36 meters.
Foundry sand dryer
Foundry sand is a key material used in the mold-making process of casting.It is composed of various materials such as base sand, clay, coal dust, water, and silica sand, mixed in specific proportions.
In the casting process, foundry sand needs to withstand the high temperature and impact of molten metal, ensuring that the mold forms the required casting shape with the desired quality.
Foundry sand is crucial for mold making, so drying it is extremely important:
Removal of Moisture: Drying foundry sand eliminates its moisture content.Excessive water can affect the mold, leading to poor casting quality.
Prevention of Surface Defects: Excess water in the sand can lead to air pockets on the surface of the castings.When molten metal is poured, the water evaporates rapidly due to high temperatures, causing defects like porosity on the surface of the casting.
Improved Casting Quality: Properly dried sand maintains its strength and permeability, which enhances casting accuracy, surface finish, and reduces scrap rates.
Foundry sand moisture should generally be between 1% and 2%, with some cases requiring it to be below 0.5%.Excessive moisture weakens the mold’s strength and the casting quality, while too little moisture can make the sand particles loose, impairing the mold structure.
| Model | Max Diameter (m) | Effective Length (m) | Capacity (t/h) | Sand | Fly Ash | Slag | Speed (r/min) | Power (kW) |
|---|---|---|---|---|---|---|---|---|
| S6203 | 1.6 | 1.8 | 2-3 | 1-2 | 2-3 | 3-10 | 3 | 3 |
| S6205 | 2.0 | 2.0 | 4-5 | 2-3 | 4-5 | 3-10 | 4 | 4 |
| S6210 | 2.2 | 2.5 | 8-10 | 4-5 | 8-10 | 3-10 | 5.5 | 5.5 |
| S6215 | 2.5 | 2.8 | 12-15 | 6-8 | 12-15 | 3-10 | 11 | 11 |
| Ф2×3 | 2.0 | 3.0 | 8-12 | 4-6 | 8-12 | 3-10 | 3×2 | 3×2 |
| Ф2×5 | 2.0 | 5.0 | 12-15 | 6-8 | 12-15 | 3-10 | 5.5×2 | 5.5×2 |
| Ф2.2×4.5 | 2.2 | 4.5 | 15-18 | 8-10 | 15-18 | 3-10 | 5.5×2 | 5.5×2 |
| Ф2.5×5 | 2.5 | 5.0 | 20-25 | 10-13 | 20-25 | 3-10 | 4×4 | 4×4 |
| Ф2.5×6 | 2.5 | 6.0 | 25-30 | 13-15 | 25-30 | 3-10 | 5.5×4 | 5.5×4 |
| Ф2.8×6 | 2.8 | 6.0 | 30-35 | 15-18 | 30-35 | 3-10 | 7.5×4 | 7.5×4 |
| Ф3×6 | 3.0 | 6.0 | 35-40 | 18-20 | 35-40 | 3-10 | 7.5×4 | 7.5×4 |
| Ф3×7 | 3.0 | 7.0 | 40-45 | 20-23 | 40-45 | 3-10 | 11×4 | 11×4 |
| Ф3.2×7 | 3.2 | 7.0 | 45-50 | 23-25 | 45-50 | 3-10 | 11×4 | 11×4 |
| Ф3.2×8 | 3.2 | 8.0 | 50-55 | 25-28 | 50-55 | 3-10 | 11×4 | 11×4 |
| Ф3.6×8 | 3.6 | 8.0 | 55-60 | 28-30 | 55-60 | 3-10 | 15×4 | 15×4 |
| Ф3.8×9 | 3.8 | 9.0 | 60-70 | 30-35 | 60-70 | 3-10 | 15×4 | 15×4 |
| Ф4.0×10 | 4.0 | 10.0 | 70-100 | 35-50 | 70-100 | 3-10 | 18.5×4 | 18.5×4 |
| Ф4.2×8.5 | 4.2 | 8.5 | 80-100 | 40-50 | 80-100 | 3-10 | 18.5×4 | 18.5×4 |
Why Choose a Specialized Foundry Sand Dryer?
In large-scale foundries where there is a high demand for foundry sand, traditional drying methods like natural air drying or baking can lead to uneven drying and high energy consumption.Our professional foundry sand dryers are designed to achieve continuous, efficient, and environmentally friendly drying.
Features of Our Foundry Sand Dryers:
High Efficiency and Energy Saving:The foundry sand dryer is designed with a heat-air circulation and insulation system, allowing for rapid drying while reducing energy consumption and production costs.
Uniform Drying: The drum design of our dryer includes lifting blades that constantly stir the sand and mix it with hot air, ensuring even heating without dead spots, which leads to thorough drying.
Stable Product Quality: Moisture levels that are too high or too low can affect casting quality.Our dryer allows for precise temperature control to avoid under-drying or over-drying, ensuring stable sand performance and better casting quality.
Large Production Capacity: Our foundry sand dryers are designed for large-scale production with automatic feeding and discharging systems, improving production efficiency and allowing for continuous 24-hour operation.
Key Considerations for Drying Foundry Sand
Temperature Control: Temperature control is critical in drying foundry sand.Excessively high temperatures can cause excessive dust and affect sand quality.The inlet hot air temperature is adjustable between 150–400°C, while the material temperature can range from 70–120°C.We use PLC automation for real-time temperature monitoring and control.
Matching Airflow and Temperature:The dryer ensures uniform heating by adjusting the airflow and temperature, using PLC control to effectively carry away evaporated moisture, preventing saturation and improving efficiency.
Preventing Clumping: Excess moisture can cause the sand to clump before or during drying.We use a specialized foundry sand crusher to break up clumps before drying, and the lifting blades inside the dryer are designed to prevent clumping by thoroughly mixing the sand with hot air.
Choosing Stainless Steel or Carbon Steel for Foundry Sand Dryers?
Based on our experience with foundry sand drying, most of our dryers are made from stainless steel due to the following reasons:
Corrosion Resistance: Foundry sand is generally corrosive, and the steam generated during the drying process is highly corrosive.Stainless steel dryers resist rust, significantly extending the lifespan of the equipment.
Avoiding Material Contamination:Carbon steel dryers tend to rust over time, and rust particles can contaminate the sand, causing secondary pollution.Stainless steel avoids this issue.
Ease of Cleaning: Stainless steel is smooth and easy to clean, helping maintain hygiene and efficiency in the drying process.This reduces dust and dirt buildup and ensures that the equipment functions optimally.
Of course, we can also customize carbon steel dryers based on customer requirements.
Why Choose Us as Your Foundry Sand Dryer Supplier?
Mature Drying Solutions: There are many types of foundry sand, such as silica sand, zircon sand, chromite sand, olivine sand, and magnesia sand.We can design a drying solution based on the specific type of sand.
Advanced Engineering Design: Our dryers use state-of-the-art technology and can be designed with either a three-pass rotary dryer or a single-pass design, ensuring high heat utilization and uniform drying without dead spots.
Environmental and Energy-Saving Design: We use PLC-controlled intelligent systems, incorporating insulation and waste heat recovery systems, which significantly reduce long-term operating energy costs and protect the environment.