Maximizing Efficiency in Pig Iron Production
Unlock the Potential of Our Advanced Brick 4.0 Design with 12 USD Economy for each tonne of Pig Iron Obtained
Road to Carbon Neutral with Brick 4.0

CO2 reduction per tonne of pig iron produced

"Learn, Grow, and Invent"

DORU
TATAR
● Inventor ●


Profession
● Inventor, Researcher, Entrepreneur, Engineer, and Author
Key Achievements
● Obtained several patents across Japan, America, Mexico, and Europe
● Innovated designs for refactory brick regenerators used in Cowper heaters
Key Patents
● Japan Nr: 2854985
● US Nr: 5924477
● Mexico Nr: 203745
● EU: EP.0832406B1
● EU: EP.1925897
Impact
● Revolutionized the structure and performance of these bricks
● Enhanced operational efficiency and durability of Cowper heaters gobally
Significance
● A driving force in the field of industrial innovation
● Contributions have transformed industry practices and promoted sustainable, efficient processes
Distinctions, Medals, Patents, and National and International Recognitions







































1. The New Brick
2. 90% Steel
3. Iron Production
4. Increase Efficiency
5. Cost Efficiency
6. Patent Sales
7. The Potential of Brick
8. Cost Reduction
9. Financial Benefits
Brick Evolution

The Cowper Brick 1.0
The first Cowper brick was invented in 1857 by Edward Alfred Cowper and is currently used in most factories. This one was continuously improved until it reached the brick in the above image.

Brick 2.0
Invented by Doru Tătar, used in Romania and distributed through patents in other countries. Generated a profit of $3.8 per ton of pig iron at the Mittal Steel plant (Romania), who bought all the rights of using it. US Steel purchased the right to use Brick 2.0 from Mittal Steel and used it in Mexico, the US, Japan, Belgium, and Germany.
Efficiency boost of 5.5% compared to Brick 1.0

Brick 3.0
Invented by Doru Tătar and in 2020 PCT Geneva has confirmed the lack of any technical evolution of cupola bricks compared to Brick 2.0.
Efficiency boost of 8-10% with some fabrication issues compared to Brick 1.0

Brick 4.0
Invented by Doru Tătar and currently presented for potential investments and implementation.
Efficiency boost of 8-12% compared to Brick 1.0
12 kg saving of coke per ton of pig iron
50% increase in thermal surface
41 KG emissions of CO2 saved per tonne of pig iron produced
SIDE BY SIDE COMPARISON
Brick 2.0 x Brick 4.0

Gas circulation in the horizontal plane

Thermal transfer surface

Reduced coke consumption per pig iron ton

Efficiency in Cowper (heat input vs heat output)

Total blast furnace productivity increase

No additional costs for the new brick as Cowpers need replacing once they reach their lifespan.
SIDE BY SIDE COMPARISON
Brick 1.0 x Brick 4.0
- Vertical air flow with unpredictable turbulence degree - the current design leads to incosistent air flow patterns, reducing the efficiency of the heat exchange process.
- The heat does not reach the entire volume of the Cowper - this design flaw results in uneven heating, compromising the operational efficiency and overall output quality.

- Forced horizontal circulation stimulates gas turbulence. This innovative design change promotes more effective turbulence, leading to increased efficiency.
- 50% larger heat transfer surface. This design modification allows for more effective head exchange, significantly improving the overall operational efficiency of the furnace.

The Composition of The Brick

Top

Section

Bottom

The classic brick

Horizontal circulation and turbulence
