TARA EcoKiln for small scale burnt brick production
The TARA EcoKiln is the world’s most energy efficient and environment friendly technology to produce burnt clay bricks. It is based on the vertical shaft brick technology process and uses coal and waste organic residues as a primary fuel. The EcoKiln has vertical shafts of rectangular cross section well insulated to arrest heat loss. The kiln works as a counter-current heat exchanger, with heat transfer taking place between the air moving up (continuous flow) and bricks moving down (intermittent movement). Green bricks are loaded in batches from kiln top. Bricks move down the shaft through pre-heating, firing and cooling zones before being unloaded from the bottom. The combustion of fuel takes place at the middle of the shaft. Combustion air enters from the bottom, gets preheated by the hot fired bricks in the lower portion of the shaft before reaching the combustion zone. They in turn preheat the green bricks in the upper portion of the shaft before exiting from the kiln through chimney.
Sector: Renewable Energy Technologies
Country: India
Area of Application: The TARA EcoKiln technology is used to produce burnt clay bricks. Best results are obtained from equivalent soil qualities. The technology is applicable in areas where land costs are high. The technology is suitable for all types of investment capacity due to its scalability. However it is most suitable for small scale brick producers and entrepreneurs.
Keywords: Burnt brick, Vertical shaft brick kiln, technology, energy efficiency, low emission, profitability, small enterprises, global applications
Advantages: • High energy efficiency ? Specific energy consumption between 0.7 – 0.9 MJ/kg of fired brick ? 30% to 90% coal saving through use of carbonaceous wastes • Lower levels of pollution ? Emission reduction by more than 70% • Better and uniform quality of fired bricks compared to clamps • Occupies less space ? Lower land requirement due to vertical in nature • 365 days of operation, subject to availability of green bricks • Lower operating capital and faster return on investment ? Fired bricks are produced within 24 hours • Minimal maintenance requirements • Flexibility in volume of production based on market demand • Highly suitable for utilization of process industry waste materials ? Use of internal fuel, e.g. sponge iron waste, boiler ash etc. • Easy to operate ? Does not require highly skilled workforce.
Environmental aspects: Cleaner Production , Waste utilization, Energy efficiency
Development Status: Fully Commercialized
Legal Protection: Trade Mark
Technical specifications: The kiln is a civil structure made of brick and mortar. The shafts are lined with refractory bricks. A two shaft kiln has a nominal dimension of 10 m x 15 m with a height of 7 m. Two chimney per shaft
Transfer Terms: Consultancy , Technical Services , Technology Licensing , Turnkey, Research Partnerships
Target Countries: World Wide
Estimated cost (US$): 70000
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Contact Person: Technology Action for Rural Advancement
Address: B-32, TARA Crescent Qutab Institutional Area
City: New Delhi
Country: India
Zip/Pin Code: 110016