Ceramic Coatings for Cement Plants and Lime Kilns

Ceramic Coatings for Cement Plants, Lime Kilns, and Mineral Processing

ITC Coatings manufactures high-temperature ceramic coatings that protect refractory linings, burner pipes, and steel structures in cement plants, lime kilns, and mineral processing facilities. Our coatings extend refractory life up to 3x, reduce reline costs by tens of thousands of dollars per year, and protect against the corrosive effects of alternative fuels — with documented ROI as fast as 3.1 months.

The Problem: Refractory Failure and Corrosion in Cement and Lime Operations

Cement and lime production subjects equipment to extreme thermal cycling, chemical attack, and mechanical stress. Rotary kilns cycle through startup and shutdown temperatures repeatedly. Burner pipes endure direct flame impingement and thermal shock. Preheater towers and calciners face erosion from raw meal and hot gases. And increasingly, the industry's shift to alternative fuels (waste-derived fuels, biomass, tires) introduces alkali chlorides and sulphates that aggressively corrode stainless steel anchors and refractory supports.

These conditions cause:

• Frequent refractory relines on burner pipes (as often as every 3–4 months)
• Anchor corrosion and failure in kiln hot zones
• Excessive fuel consumption from degraded insulation
• Baghouse and ductwork corrosion from acid dew point condensation
• Unplanned shutdowns and production losses

Proven Results in Cement and Lime

Salt River Materials Group, Arizona — Cement Kiln Burner Pipe

A 26-foot burner pipe (30-inch diameter) was failing every 4 months due to thermal shock cycling on the refractory lining. ITC 100HT was applied to the refractory hot face. Results: refractory life extended from 4 months to 12+ months (2–3x improvement). Annual reline costs dropped from $50,000 (3 relines/year) to $16,000 (1 coating/year). Annual savings: $33,374 with a 3.1-month ROI.

Brampton Brick, Ontario, Canada — Brick Kiln

Kiln #1 (300 feet long) had ITC 100HT applied to the hot face tile and brick in the hot zone. Results: 10% fuel savings (252,680 to 228,000 m³/day natural gas), $27,025/year savings on a single kiln, refractory life extended 2–3x, and 50% reduction in start-up times. Note: only the hot zone was coated — full kiln coating would increase savings further.

TXI Cement, Texas — Baghouse

A 12-compartment baghouse (each compartment 20'x25'x60' high) had steel shell corrosion from acidic flue gas condensation at the acid dew point. The full ITC system was applied: ITC 213 on the metal shell, ITC 100HT as a thermal barrier, and ITC 296A as a top coat. Steel shell life extended 4–5x. Bag and cartridge corrosion was also reduced. This three-product application represents the highest revenue per job in the ITC product line.

Anchor Corrosion Protection (Laboratory Testing)

Alternative fuels in cement kilns release alkali chlorides and sulphates that destroy stainless steel anchors. ITC 213 was tested on 7 steel grades at 900°C for 5 hours in a NaSO₄/NaCl corrosive mix. Every grade improved at least one quality level. Uncoated Inconel 601 rated "Terrible" (completely corroded); ITC-coated Inconel 601 rated "Acceptable" (retained structure). AISI 304 improved from "Excellent" to "Outstanding." ITC 213 enables the use of cheaper steel grades by providing corrosion protection equivalent to or better than expensive alloys.

Cement and Lime Applications for ITC Coatings

Rotary Kilns: ITC 100HT on refractory hot face in the burning zone, transition zone, and cooling zone. Reflects heat back into the process, reduces shell temperatures, and extends brick life.

Burner Pipes: ITC 100HT on the refractory lining of kiln burner pipes. Prevents thermal shock failure and extends reline intervals from months to years.

Preheater Towers and Calciners: ITC 100HT on refractory linings to protect against erosion from raw meal and thermal cycling.

Baghouses and Ductwork: Full ITC system (213 + 100HT + 296A) on steel structures exposed to acid dew point corrosion from flue gases. Extends structural life 4–5x.

Stainless Steel Anchors: ITC 213 on refractory anchors to prevent alkali chloride/sulphate corrosion from alternative fuels. Enables use of lower-cost steel grades.

Products Used in Cement and Lime Applications

ITC 100HT — Base coat for all refractory surfaces in kilns, burner pipes, preheaters, and calciners. Rated to 5,000°F.

ITC 213 — Ceramic coating for metal surfaces including steel shells, anchors, and structural components exposed to corrosion.

ITC 296A — Premium top coat for baghouse interiors and surfaces exposed to aggressive flue gas chemistry.

Frequently Asked Questions: ITC in Cement and Lime

How fast is the ROI on a cement kiln burner pipe coating?

At Salt River Materials Group, the full return on investment was achieved in 3.1 months. The coating cost $16,000 and eliminated two of three annual relines ($50,000/year), saving $33,374 per year.

Can ITC coatings protect against alternative fuel corrosion?

Yes. Laboratory testing demonstrated that ITC 213 significantly improves corrosion resistance of stainless steel exposed to alkali chlorides and sulphates at 900°C — the exact conditions created by waste-derived fuels, biomass, and tire-derived fuel in cement kilns.

Can ITC coatings reduce start-up times?

Yes. At Brampton Brick, ITC coatings reduced kiln start-up times by 50%. The heat-reflective coating helps the kiln reach operating temperature faster by reducing heat absorption into the refractory mass during warm-up.

Contact ITC Coatings to discuss your cement or lime application: info@itccoatings.com | 904.759.0152