The diagram illustrates the stages involved in the production of bricks for construction purposes. Overall, the process is linear and comprises several key phases, beginning with the extraction of raw clay and ending with the delivery of finished bricks to consumers.
The process commences with the excavation of clay from the ground using a mechanical digger. The extracted clay is then placed onto a roller and passed through a metal grid, which removes larger particles and impurities. Following this filtration stage, sand and water are added to the refined clay to form a workable mixture. This mixture is subsequently shaped into rectangular bricks either by being pressed into moulds or by being cut using a wire cutter.
Next, the newly formed bricks are transferred to a drying oven, where they are left to dry for approximately 24 to 48 hours. After the drying stage, the bricks are heated in a kiln at a moderate temperature ranging from 200°C to 980°C. They then undergo further heating at a higher temperature between 870°C and 1300°C. Once the firing process is complete, the bricks are cooled in a cooling chamber for 48 to 72 hours.
Finally, the finished bricks are packaged and transported by truck to their destinations for use in building construction.