“Strategy 2020 – Kazakhstan’s way to leadership!”
Today, we want to show you how they produce ceramic brick in Kokshetau, Kazakhstan.
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The factory’s estimated capacity is 60 million bricks a year. Brick is one of the oldest building materials in the world. In fact, it is artificial stone that features the same characteristics as natural one. Up to the middle of the 19th century, its production was primitive and highly labor-intensive. Just 150 years ago, they began mechanizing the technology.
It is considered that multi-bucket and rotor excavators extract best clay for brick production.
Brick production includes three stages:
1. Extraction of clay and preparation of furnace charge.
2. Brick forming and drying.
3. Firing.
Extracted clay is brought to the factory where they crush and moisten it, and remove stones.
Introduction of crushing and moisturing machines allowed brick producers to give up using lime pits. Furthermore, due to automated grinding and mixing, they receive much better paste suitable for hydrostatic-extrusion brick forming.
Uniform mass goes to the forming department.
The press above makes brickets with holes inside. The number of holes influences solidity and thermal insulation characteristics of bricks.
Then, they cut off a bar which has a length of 10 bricks…
To cut it into bricks with a special machine.
After that, they have to dry it.
They raise the temperature slowly which ensures the best quality of the brick dried.
Brick color varies from red to black depending on the acidity at firing. Also, they may add colorants to change the color of brick.
This machine puts bricks on trays before firing.
Firing is one of the most important stages at brick production. They fire brick in gas furnaces. Underfired brick which is usually darker and heavier than the regular one is easy to break. Overfired brick is stronger, it doesn’t imbibe moisture and sounds high-pitch.
Finished product.
Location: Kokshetau
via russos
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