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Help Center200TPD Vertical Lime Kiln / Active Lime Shaft Kiln for Quicklime Production Plant
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PARAMTERS
| Parameter | Specification | Remarks |
|---|---|---|
| General Information | ||
| Type | Mixed-Feed Vertical Shaft Kiln (VSK) / Mixed Burning Lime Kiln | Solid fuel and limestone are mixed before charging -7-9. |
| Daily Capacity | 200 Tonnes per Day (TPD) | Range: 180-230 TPD depending on operation -2. |
| Production Ratio | 0.8 – 0.95 (Utilization Coefficient) | Calculated per m³ of effective volume -2-9. |
| Operational Mode | Continuous / Counter-Current Flow | Material moves down, hot gases move up. |
| Raw Materials (Limestone) | ||
| Feed Size | 40 – 80 mm (Recommended) or 30 – 120 mm | Ratio of max:min size must be ≤ 2.5 to ensure uniform calcination -1-3-8. |
| Limestone Composition | CaO ≥ 50%, MgO ≤ 3%, SiO₂ ≤ 2% | Higher purity yields better reactivity. |
| Throughput Rate | Approx. 1.6 – 1.7 tons of stone / ton of lime | Accounts for calcination loss (LOI ~40-52%) -9. |
| Fuel Specifications | ||
| Fuel Type | Anthracite and coking coal | Designed for multi-solid fuel flexibility -2-3. |
| Fuel Size | 10 – 15 mm or 0-10 mm (briquettes) | Consistent size is critical for even mixing -2. |
| Fuel Consumption (Heat Rate) | 1100 – 1250 kcal / kg of lime | Or 120-140 kg of standard coal equivalent per ton -2-8. |
| Thermal Efficiency | > 80% | Higher than rotary kilns for this scale. |
| Process & Operation | ||
| Calcination Temperature | 1100°C – 1250°C (Zone) | Max firing temperature: 1250°C -2-9. |
| Burning Method | Mixed / Intermittent | Fuel burns within the stone burden. |
| CaO Reactivity | T60 ≤ 2 – 4 minutes | Measures how fast lime slakes; lower is generally better for steel -1-10. |
| Residual CO₂ | Indicates degree of calcination. | |
| Over-burning & Under-burning Rate | ≤ 5 – 8% | Dependent on operator skill and fuel mixing -2. |
| Active Lime Activity | 280 – 340 ml (4N HCl, 10min) | Standard for metallurgical lime -2. |
| Energy & Consumption | ||
| Power Consumption | 8 – 13 kWh / ton of lime | Includes fans, elevators, and vibrators -1-2-3. |
| Cooling Air Volume | Approx. 15000 – 20000 m³/h | Primary air for combustion. |
| System Draft (ID Fan) | 2500 – 3000 Pa | Induced draft at top. |
| Physical Specifications | ||
| Effective Kiln Volume | Approx. 250 – 300 m³ | Specific volume based on utilization factor (0.8) -2. |
| Kiln Shell Construction | Steel plate (12-16mm) + Refractory lining | Outer shell is typically steel -2-5. |
| Refractory Lining | High Alumina Brick + Fire Clay + Insulation Layer | Working layer: 230mm High Alumina -5. |
| Main Equipment | ||
| Charging System | 9-Point Rotary Distributor / Double-Cone Seal | Ensures uniform material distribution to avoid "blowholes" -2. |
| Discharging System | Rotary Vibrating Discharger / Hydraulic Piston Extractors | Allows for sealed, continuous discharge -2. |
| Material Handling | Skip Hoist / Belt Conveyor with Weighing System | PLC-controlled batching system. |
| Environmental Compliance | ||
| Dust Emission | With Baghouse Filter / Scrubber. | |
| SO₂ Emission | Depending on sulfur content of fuel. |
Jinyong Kiln & Furnace – Core Advantages
Founded in 2008, Linyi Jinyong Kiln & Furnace Co., Ltd. has grown into a large-scale enterprise integrating lime kiln design, construction, equipment manufacturing, and technical services. With over 600 energy-saving and environmentally friendly lime kilns built both domestically and internationally, the company offers the following key advantages:
1. Technical Performance Advantages
| Parameter | Specification | Remarks |
|---|---|---|
| Unit Energy Consumption | 100–120kg standard coal / ton of lime | Heat rate approx. 850 kcal/kg – highly energy-efficient |
| Automation Level | 98% | PLC/SCADA intelligent control system; real-time monitoring of temperature, pressure, and automatic fuel-air regulation |
| Capacity Flexibility | 70% – 110% | Adapts to varying production demands |
2. Core Process Advantages – Environmental Protection Vertical Lime Kiln
| Advantage | Description |
|---|---|
| Counter-Current Calcination Principle | Limestone moves downward while hot gases flow upward, maximizing heat utilization and ensuring thorough, progressive calcination throughout the kiln. |
| Uniform Temperature Distribution | Optimized internal structure and burner layout create a stable, even temperature profile across the kiln cross-section, preventing localized overheating or under-burning. |
| Mixed-Feed Technology | Solid fuel (coal, coke, anthracite, etc.) is evenly mixed with limestone feed, allowing fuel to burn within the stone burden for highly efficient, direct heat transfer. |
| Low & Slow Calcination Process | Controlled calcination at lower temperatures (1100°C–1250°C) with extended retention time produces high-reactivity lime while minimizing fuel consumption and NOx formation. |
| Flexible Fuel Compatibility | Designed to utilize a wide range of low-cost solid fuels including anthracite, coke breeze, bituminous coal, and solid recovered fuels (SRF) — ideal for regions with abundant coal resources. |
| High Thermal Efficiency (>80%) | Excellent heat retention and counter-current gas-solid contact result in significantly higher thermal efficiency compared to rotary kilns of the same capacity. |
| Wide Raw Material Tolerance | Accepts limestone feed sizes from 40–80mm (or up to 120mm with optimized design), with a max:min size ratio ≤2.5 — reducing crushing and screening costs. |
| Stable & Continuous Operation | Continuous charging and discharging system ensures uninterrupted production, minimizing downtime and maximizing daily output. |
| Low Maintenance Design | Simple vertical structure with fewer moving parts reduces mechanical wear and tear, lowering maintenance costs and extending service life. |
| Sealed Feeding & Discharging | Rotary distributors and vibrating dischargers maintain an air-lock seal, preventing cold air infiltration and dust leakage — critical for both energy efficiency and environmental compliance. |
3. Environmental Advantages
Meeting increasingly stringent environmental regulations, Jinyong kilns offer outstanding environmental performance:
Low-NOx Combustion Technology: Effectively reduces NOx emissions, meeting or exceeding national standards
High-Efficiency Dust Collection: Advanced multi-stage gas treatment systems (scrubbers, spray towers) achieve dust emission
Excellent Sealing: Kiln shell air-tightness maintains 40 kPa without leakage, minimizing fugitive emissions
Green Production Philosophy: Environmental considerations integrated throughout design, manufacturing, installation, and commissioning – achieving both "high output and blue skies"
4. Experience & Scale
| Metric | Data | Notes |
|---|---|---|
| Industry Experience | 20+ years | Founder Zhang Jinyong has decades of R&D and construction experience in lime kilns |
| Kilns Built | 600+ | Energy-saving, environmentally friendly lime kilns domestically and abroad |
| Certifications | ISO Safety Certification, Metallurgical Kiln Engineering Qualification | Director unit of China Lime Association; holds Technology Trade License from Shandong Provincial Science & Technology Department |
| International Projects | Russia, Uzbekistan, Vietnam, Laos, Myanmar, etc. | Extensive overseas experience; adapts to different geographic and climatic conditions |
5. Equipment Quality & Customization Capabilities
High-Quality Materials: Premium steel, advanced welding techniques; special wear-resistant steel for core components; high-temperature resistant imported materials for critical seals
Military-Grade Standards: Reliable long-term operation under high-temperature, high-dust conditions; customer feedback reports near-zero failure rate after one year of continuous operation
One-Stop Service: Complete lifecycle service – design, manufacturing, installation, commissioning, and after-sales support
Customized Solutions: Tailored kiln designs based on customer raw materials, fuel, site conditions, and production targets
Full Kiln Portfolio: Twin-shaft kilns, mixed-feed lime kilns, energy-saving vertical kilns, and more
6. Upgrade & Retrofit Advantages
For existing outdated equipment, Jinyong offers professional upgrade and modification services:
Significant ROI: Customer feedback shows 15% energy reduction, 12% output increase, kiln utilization rate improved from 75% to 92%
Fast Payback: Energy cost savings and reduced maintenance expenses typically recover the retrofit investment within one year
Waste Heat Recovery: Installing waste heat recovery systems saves over CNY 1 million annually in fuel costs
Minimized Production Impact: Detailed construction planning minimizes disruption to normal operations
7. After-Sales Service & Technical Training
Jinyong emphasizes long-term customer partnerships, providing:
Commissioning & Training: On-site equipment commissioning and operator training by experienced technicians
Calcination Technology Guidance: Helps customers master quality control techniques for lime calcination
Continuous Technical Support: Lays the technical foundation for stable, long-term production
Summary – Why Choose Jinyong?
| Advantage Category | Key Highlights |
|---|---|
| Advanced Technology | Reactivity >370ml, over-burning rate |
| Energy Saving & Environmental | Low-NOx combustion, high-efficiency dust collection, |
| Rich Experience | 600+ kilns built, 20+ years expertise, international track record |
| Reliable Quality | Military-grade manufacturing standards |
| Comprehensive Service | One-stop from design to after-sales + retrofit solutions |
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