December 06, 2024
Sand is mainly composed of minerals like quartz and feldspar, with particle sizes ranging from 0.0625 mm to 2 mm. It is commonly found in rivers, beaches, and deserts and is widely used in construction, concrete, and glass production.
Sand from water sources, such as rivers, seas, and lakes, typically has high moisture content and needs to be dried before industrial use. Sand drying equipment uses hot air or other heat sources to remove moisture, ensuring the sand reaches the desired dryness.
So, how is sand dried? What steps are involved in drying sand to achieve the proper moisture level for industrial production? Let’s explore.
Drying sand is not solely achieved by a single sand dryer; it requires several auxiliary devices to complete the drying process. The main equipment in a sand drying line includes the belt conveyor, vibrating screen, induced draft fan, temperature control system, sand dryer, and dust collector.
Wet sand material with a certain moisture content is transported to the sand drying production line for drying. The belt conveyor is typically set at an angle of 16 degrees and operates smoothly.
Function: The belt conveyor ensures even sand distribution and continuous, stable transportation. It improves production efficiency, speeds up the process, saves labor, and boosts automation.
Material enters the dryer, where hot air is introduced, and is stirred by blades inside the drum for even exposure to the heat. This speeds up heat transfer, moisture evaporation, and drying. The dried material is then discharged through the chute.
Function: The triple drum dryer reduces the moisture content of the material by using heating, ventilation, and other methods. The dryer enhances the quality and stability of the material, reducing the risk of decay and mold growth.
The discharge end of the dryer is connected to a dust collector, which removes dust and solid particles generated during the drying process. This ensures that the gases released are clean and dust-free, meeting solid pollutant emission standards.
Function:The dust collector prevents solid particles from entering the dryer and discharge system, reducing wear and clogging. It ensures product quality by removing dust and impurities, preventing them from affecting the product's appearance, texture, and functionality.
The induced draft fan is connected to the pulse dust collector and is used to extract hot flue gases from the dryer. It also serves as the primary power source for the airflow in the entire drying line.
Once the sand is dried, it needs to be cooled to avoid overheating, which can affect subsequent processing. A cooler helps rapidly reduce the sand’s temperature to ambient levels.
After drying, the sand is screened to remove oversized particles or to separate it into different particle size ranges for the final product.
This is the detailed process of sand drying and the equipment involved at each stage. As we can see, every piece of equipment plays a crucial role in the transition from wet sand to dry sand. If you are interested in sand dryers or equipment in the drying production line, feel free to contact us. Our experts will provide you with detailed answers and solutions.
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