Brick Dryer Types
Raw clay drying is one of the most important stages of production and is done by a variety of brick dryer types. Once the bricks are manufactured, raw bricks cannot be inserted directly into the firing stage. If the raw clay enters the kiln directly, at high heat, the water dries quickly and the clay shrinks rapidly. This rapid volume reduction and sudden shrinkage cause thermal stress and clay disintegration. Therefore, raw bricks enter the dryer prior to the firing stage.
Inside the brick dryer, the raw clay will gradually lose moisture and dry under controlled temperature and airflow conditions. After this step, the dried adobes will find the strength and readiness to enter the firing stage and become bricks.
There are different brick dryer types and divided into three categories according to the drying speed:
- Normal or chamber brick dryers: Drying time is between 12 to 72 hours
- Semi-rapid brick dryers: Drying time is between 8 to 12 hours
- Rapid (Fast) brick dryers: Drying time between is 2 to 8 hours
Today, new methods of drying bricks are used to save costs and reduce production costs and ultimately reduce the cost of finished products. Quick brick dryers are a good alternative to the old ways. Quick dryers are divided into two types that are mono layer and another faster type named rotary.
