The diagram illustrates the process of producing bricks for the construction industry, from clay extraction to final delivery.
Overall, there are seven main stages, beginning with the digging of clay and ending with the transportation of packaged bricks. The process involves both mechanical shaping and thermal treatment.
Initially, clay is dug with a digger and passed through a metal grid to remove larger pieces before being processed by a roller. Sand and water are added, and the mixture is either moulded or cut with a wire cutter to form bricks. These are then dried in an oven for 24 to 48 hours.
Subsequently, the dried bricks are heated in a kiln, first at moderate temperatures of 200°C-980°C, then at higher levels of 870°C-1300°C. After firing, they are cooled in a chamber for 48 to 72 hours. Finally, the finished bricks are packaged and delivered to their destinations.