Upgrade project for Tamil Nadu Newsprint and Papers Limited

January 19, 2016 Anilkumar Mukundan

FLSmidth’s newly formed Products and Upgrades Department (P&U) of the Cement Projects Division in India won its first order from Tamil Nadu Newsprints and Paper Limited (TNPL). The project, which was signed earlier in 2015, involves upgrading the cement plant’s clinkerisation capacity from 500 tpd to 800 tpd.

TNPL is the first cement plant in India to use waste generated by the paper plant.

Tamil Nadu Newsprint and Papers Limited established TNPL Cement Factory in January 2013. It is located at Kagithapuram in the Karur district of Tamil Nadu, India. This is the first cement plant in India to use the waste generated by the paper plant as the major raw material, which includes lime sludge and dry ash.

An example of FLSmidth’s “Customer Intimacy” strategy in action, the project was the result of more than a year’s close collaboration between FLSmidth’s P&U team and TNPL. FLSmidth’s Customer Services - OPS team provided excellent support throughout the negotiation process, demonstrating FLSmidth’s “One Source” capabilities.

Project timelines
Effective date of contract (EDC)....................................... 20th Mar 2015
Supply of major equipment............................................ 6 to 8 months from EDC
Plant commissioning.......................................................... By Dec 2015

The upgrade project includes the following

1. A secondary crusher circuit will reduce the raw mill feed size and increase the raw mill output.
2. The existing separator in the raw mill circuit will be replaced with the high-efficiency O-Sepa® separator to support the increased raw mill output, reduce energy consumption and provide better particle size distribution.
3. A new inline calciner will enhance the clinker production capacity and energy efficiency.
4. The existing top stage and the bottom cyclone are to be replaced with new cyclones.
5. As lime sludge (waste generated from the paper plant) is being used as a raw material, a new bypass system will facilitate trouble-free operation at a higher capacity.
6. The existing bag house will be expanded with two additional modules to vent the raw mill and preheater flue gases.
7. A new high-momentum Duoflex® burner for the enhanced capacity and low-volatile coal usage will improve quality and operational performance.
8. Existing cooler is added with ABC inlet and extended to support the enhanced capacity and enable trouble-free operation and increased energy efficiency.
9. The calciner will have a new solid alternative fuel feeding system.
10. New fine-coal dosing systems will be implemented for the new calciner and for kiln firing.

 

About the Author

cma-in@flsmidth.com

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