Products Description
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AGICO calcium carbonate rotary kiln is used for limestone calcination to produce quicklime. The kiln shell is inclined and rotates. Materials are preheated, decomposed, and burned inside the kiln.
AGICO has over 20 years of experience in kiln design and manufacturing. Products are certified by ISO and CE. High-strength low-alloy steel plates and multi-channel burners are adopted. Calcination temperature is controlled at 1100℃±50℃. Lime activity reaches 360-400ml. Multiple fuels are supported, including pulverized coal, natural gas, and heavy oil. Applications include steel, calcium carbide, fine chemicals, and refractories.
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years experience
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month warranty
Products Details
Working Process of AGICO Calcium Carbonate Rotary Kiln
The kiln consists of shell, support devices (roller assemblies), transmission (gearbox and girth gear), kiln hood, kiln inlet, seals, and burner. The shell is designed with variable thickness. Bending stiffness is increased by over 12%. In operation, limestone (20-40mm) is fed from the kiln inlet. The shell rotates at 3.5%-4% inclination. Materials move along the axis toward the discharge end. Preheating, decomposition, and burning occur sequentially. Fuel is injected from the kiln hood and combusted. Heat is transferred by radiation and convection. Finished quicklime is discharged from the hood end. Models range from Φ2.5×40m to Φ6.0×95m. Capacity covers 180-10,000t/d. Non-standard customization is available.
Products Features
highlighting advantages of Our rotary kiln
Thermal Efficiency 75%
Heat recovery systems are adopted. Thermal efficiency reaches 75%. Energy consumption is reduced by 20% compared to traditional kilns.
Temperature Control ±50℃
PLC and SCADA systems are used. Temperature is stabilized at 1100±50℃. Over-burning and under-burning are effectively prevented.
Emission ≤20mg/m³
Negative-pressure operation is maintained. Pulse bag filters are equipped. Dust emission is controlled below 20mg/m³.!
Durability 12-18 Months
Low-alloy steel shells and composite linings are applied. Maintenance intervals are extended to 12-18 months.
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Products Parameter
| Model (m) | Diameter (m) | Length (m) | Slope (%) | Capacity (t/d) | Speed (r/min) | Power (kW) | Weight (t) |
|---|---|---|---|---|---|---|---|
| Φ2.5×40 | 2.5 | 40 | 3.5 | 180 | 0.44-2.44 | 55 | 149.6 |
| Φ2.5×50 | 2.5 | 50 | 3.0 | 200 | 0.62-1.86 | 55 | 187.4 |
| Φ2.8×44 | 2.8 | 44 | 3.5 | 400 | 0.44-2.18 | 55 | 201.6 |
| Φ3.0×48 | 3.0 | 48 | 3.5 | 700 | 0.60-3.48 | 100 | 237 |
| Φ3.2×50 | 3.2 | 50 | 4.0 | 1000 | 0.60-3.00 | 125 | 278 |
| Φ3.5×54 | 3.5 | 54 | 3.5 | 1500 | 0.55-3.40 | 220 | 363 |
| Φ4.0×60 | 4.0 | 60 | 3.5 | 2500 | 0.40-3.96 | 315 | 510 |
| Φ4.2×60 | 4.2 | 60 | 4.0 | 2750 | 0.41-3.98 | 375 | 633 |
| Φ4.8×74 | 4.8 | 74 | 4.0 | 5000 | 0.40-3.96 | 630 | 899 |
| Φ5.0×74 | 5.0 | 74 | 4.0 | 6000 | 0.35-4.00 | 710 | 944 |
FAQ
Q1: Can AGICO rotary kilns use low-calorific or alternative fuels?
Yes. The combustion system of AGICO kilns is optimized for different fuels, including coal, natural gas, LPG, and heavy oil. Burner structure and primary air distribution are adjusted based on fuel analysis reports provided by users. Combustion efficiency and flame shape are maintained. Fuel costs are effectively reduced.
Q2: How is NOx emission controlled during calcination?
SNCR technology is integrated into AGICO kilns. Reducing agents are injected into the precalciner or kiln inlet to lower NOx emissions. Combustion temperature and excess air ratio are precisely controlled. Thermal NOx formation is suppressed at the source. High-efficiency dust collectors are equipped. Regional ultra-low emission standards are met.
Q3: What technical support is offered before purchase?
Full technical services are provided by AGICO, including raw material analysis, process design, CFD thermal simulation, 3D modeling, and equipment selection. Global engineering experience is utilized. Optimal balance among capacity, energy consumption, and investment is ensured. Non-standard solutions are available upon request.
Q4: What is the delivery time and export capability?
AGICO has extensive export experience. Products comply with ISO and CE standards. Customs clearance, shipping, and overseas installation services are offered. Standard delivery is 4-6 months after contract signing. Delivery depends on specifications and customization level.
