This image captures a major section of an industrial process plant under construction, featuring the Preheater (PH) Boiler structure, large silos and multiple interconnected process units. Purna has been responsible for delivering the detailed civil and structural engineering required to support these complex, high-load facilities.
Scope of Engineering by Purna
1. PH Boiler Structural Engineering
The towering structure visible on the left accommodates the Preheater Boiler and associated ducting systems. Purna’s engineering scope included:
- Structural framing design for multi-level boiler support
- Load analysis for thermal, cyclic, wind, seismic and equipment loads
- Steel connection detailing and stability checks
- Integration of platforms, staircases and maintenance access systems
2. Silo Structure Engineering
The large cylindrical silo at the centre required precise civil and structural engineering to handle:
- High vertical and circumferential loads
- Foundation design addressing soil conditions and settlement control
- Interface engineering with adjacent conveyors, stair towers and process buildings
3. Ducting, Cyclone and Process Unit Supports
The interconnected process equipment cyclones, ducts, ID fans and riser ducts were supported on engineered steel structures designed by Purna for:
- Optimal load transfer from heavy ducting
- Thermal expansion and movement accommodation
- Clash-free routing between dense industrial units
4. Construction Engineering Support
As seen in the image, the project involved multiple cranes, heavy equipment and staged erection sequences. Purna’s engineering support included:
- Construction methodology review
- Erection sequence planning
- Temporary support and stability assessments
- Coordination with civil foundations and mechanical installation
Project Significance
The PH Boiler and Silo area represents one of the most structurally intensive zones of a cement or process plant. Purna’s engineering ensured:
- High structural reliability
- Safe constructability
- Integration of complex mechanical systems
- Long-term operational stability
This project exemplifies Purna’s capability to deliver comprehensive engineering solutions for large-scale industrial facilities, from heavy process structures to specialized equipment supports.
















