Following refractory installation at Rungta Mines sponge iron unit, M.S. Enterprises was contracted for the full controlled dry-out and curing campaign. Improper dry-out is the #1 cause of refractory failure within 90 days of commissioning — this engagement followed manufacturer TDS strictly with full documentation.
Scope of Work
Detailed work package delivered under this contract.
- ▸Burner deployment with calibrated temperature control
- ▸Continuous chart-recorder logging at 3 thermocouple locations
- ▸Stage-wise dry-out: ambient → 150°C → 350°C → 600°C → 1100°C with documented hold points
- ▸Real-time temperature ramp adjustment per measured shell temperature
- ▸Post-cure visual + percussion inspection
- ▸Dry-out documentation hand-over
Plant had limited prior experience with documented dry-out procedures. Previous units had been heated up with operational fuel firing — leading to thermal-shock cracking detected at 4-month service. Plant wanted full third-party dry-out with OEM-spec discipline.
Two-burner deployment with controlled diesel firing. Temperature logged every 5 minutes at three thermocouple positions (top, mid, bottom of furnace). Hold points strictly observed: 4 hours at 150°C, 6 hours at 350°C, 8 hours at 600°C, 12 hours at 1100°C. Post-cure visual inspection + percussion test at every 1 m² of lining surface.
Materials Used
Manufacturer-grade materials sourced direct, with full batch certification.
| Material | Specification | Quantity |
|---|---|---|
| Diesel fuel | Industrial grade, controlled flow | ~3,500 L |
| Burner equipment | Twin-burner with thermal controller | Deployed |
| Chart-recorder | Continuous 24-hr trace | 1 unit |
Delivered & verified.
- ✓8-day controlled dry-out completed without any over-temperature or under-ramp incident
- ✓All hold points achieved with documented chart-recorder traces
- ✓Hand-over: dry-out chart, temperature logs, post-cure inspection report, photo documentation
- ✓Plant commissioned on schedule with no thermal-shock cracking observed