The diagram illustrates the process involved in the production of bricks for the building industry.
From an overall perspective, the process consists of seven distinct stages that can be categorized into five main phases: preparation, shaping, drying, firing, and packaging. This complex process requires significant amount of time and the use of specialized equipment.
In the initial stages, large quantities of clay are excavated using a digger. The clay is then placed on a metal grid to break it into smaller pieces with the help of a roller. Following this, sand and water are added to the clay mixture to aid in the formation of bricks. The mixture is then either molded or cut using a wire cutter to shape it into uniform bricks.
Subsequently, the shaped bricks are dried in an oven for a period ranging from 24 to 48 hours. Once dried, the bricks enter the firing process, where they are heated in a kiln. The firing consists of two stages: pre-heating at moderate temperatures between 200 to 900 degrees Celsius, and then heating at high temperatures from 900 to 1300 degrees Celsius.
After being fired, the bricks are cooled for 48 to 72 hours in a cooling chamber. This gradual cooling is essential to ensure the bricks attain the desired hardness and durability. Finally, the finished bricks are packaged and transported to various building industries.