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High-Efficiency, Low-Emission Lime Calcination Solution for Small to Medium-Scale Production
Product Overview
The 50 TPD Environmental Vertical Shaft Lime Kiln is a modern, mechanized calcination system designed for small-scale lime production with stringent environmental compliance. Engineered with advanced combustion technology and automated control systems, this kiln delivers high-quality quicklime (CaO > 90%) while minimizing energy consumption and pollutant emissions. It represents an ideal investment for small lime plants, metallurgical facilities, and chemical processing operations seeking cost-effective, environmentally responsible production equipment -1-4.
This kiln features a compact vertical design with a small footprint, making it suitable for sites with limited space. The fully automated control system, including PLC-based operation and real-time monitoring, ensures stable production and product quality consistency -1-3.
Key Features
Environmental Compliance
Equipped with advanced dedusting systems and optional desulfurization/denitrification technology, the kiln achieves emission concentrations below national standards (
Energy Efficiency
Optimized combustion system and waste heat recovery technology minimize heat consumption (
Automation & Precision
Fully automated systems manage batching, feeding, distribution, and discharge. Features include:
Intelligent electronic weighing system for precise limestone-to-fuel ratio control
PLC-controlled rotary distributor for uniform material spreading and stable kiln conditions
Smart level indicator for real-time material level monitoring
Variable-frequency drive on discharge mechanism for production rate adjustment -2-3
Product Quality
Produces high-activity lime (≥ 300 mL) with low over-burning and under-burning rates (
Technical Specifications
| Parameter | Specification |
|---|---|
| Daily Capacity | 50 tons/day |
| Effective Volume | 70 m³ |
| Effective Height | 20 m |
| Effective Section (Diameter) | Ø 2.0 m |
| Limestone Size | 30–60 mm / 40–80 mm |
| Calcination Temperature | 1100 ± 50°C |
| Heat Consumption | |
| CaO Content | > 90% |
| Lime Activity | ≥ 280 mL (4N HCl method) |
| Over/Under Burning Rate | ≤ 10% |
| Power Consumption | ≤ 10 kWh/t lime (excluding dust collection) |
| Outlet Temperature | Ambient + 60°C |
| Dust Emission | ≤ 30 mg/Nm³ |
| Annual Operating Days | ≥ 330 days |
| Major Overhaul Cycle | 3–5 years |
| Operators per Shift | 2 persons |
Reference data; actual specifications may vary based on limestone characteristics and fuel type -1-4-5
Equipment Composition
| Component | Description |
|---|---|
| Charging System | Skip hoist with frequency control + rotary distributor (stainless steel, heat-resistant construction) |
| Kiln Shell | Steel structure with refractory lining (high-strength, heat-insulating layers) |
| Burning Zone | Optimized burner system with multi-point air supply |
| Cooling System | Annular air distribution with forced draft fan |
| Discharge System | Dual-stage sealed discharge valve + vibrating feeder (fines reduction design) |
| Dust Collection | Bag filter or cyclone system (customizable) |
| Control System | PLC + industrial PC with temperature/pressure sensors network |
| Accessories | Inspection platforms, ladders, maintenance doors, temperature monitoring points -2-3-8 |
Applicable Fuels
| Fuel Type | Examples |
|---|---|
| Solid Fuels | Lump anthracite, coke, petroleum coke |
| Gaseous Fuels | Coke oven gas, converter gas, blast furnace gas, calcium carbide tail gas, semi-coke gas |
The kiln can be designed to accommodate various fuel types based on local availability and economic considerations -2-8.
Applications
Metallurgical industry: Steel deslagging, sintering flux
Chemical industry: Calcium carbide production, soda ash manufacturing
Construction materials: Aerated concrete, mortar additives
Specialty chemicals: Nano-calcium carbonate, precipitated calcium carbonate (PCC)
Sugar refining: Sugar juice purification
Environmental protection: Flue gas desulfurization (FGD) -2-8
Advantages Over Alternative Kilns
| Feature | 50 TPD Vertical Shaft Kiln |
|---|---|
| Investment Cost | Lower (≈150,000–200,000 USD) |
| Footprint | Compact |
| Fuel Flexibility | High (solid/gas) |
| Automation Level | High (PLC control) |
| Maintenance | Lower |
| Product Quality | High activity lime |
Product Title Optimizations
Recommended Title:
50 TPD Environmental Vertical Shaft Lime Kiln – High-Efficiency Calcination System with Low Emissions & PLC Automation
Alternative Options:
50 TPD Eco-Friendly Lime Vertical Kiln for Quicklime Production
Energy-Saving 50 TPD Vertical Lime Kiln with Advanced Emission Control
50 Tons/Day Environmental Lime Shaft Kiln – Automatic, Low Energy Consumption
Small-Scale 50 TPD Vertical Lime Kiln for Metallurgical & Chemical Applications
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