The diagram illustrates the multi-stage process of manufacturing bricks for the construction industry. Overall, the production consists of several sequential phases, beginning with the extraction of raw materials and concluding with the packaging and delivery of the final product.
To begin with, clay is excavated from the ground using a large digger. This raw clay is then placed onto a metal grid, which sits on top of a roller, to break the large pieces into smaller, manageable chunks. Following this, the crushed clay is mixed with sand and water. At the shaping stage, the mixture can either be processed using a wire cutter to divide it into individual bricks or poured directly into a mould to form the required shape.
Once the bricks are shaped, they are placed into a drying oven for 24 to 48 hours to remove excess moisture. Afterwards, the dried bricks undergo a heating and cooling process in specific chambers. They first enter a kiln where they are heated at a moderate temperature ranging from 200°C to 980°C, before being exposed to high temperatures between 870°C and 1300°C. Next, the bricks are moved to a cooling chamber, where they remain for 48 to 72 hours. In the final stage, the completed bricks are stacked and wrapped during packaging, and then loaded onto trucks for delivery to various destinations.