Hydrated Lime Production Line
Hydrated Lime Production Line
Full Automatic Dry Process Calcium Hydroxide Manufacturing Plant
Hydrated Lime Production Line is a professional full-automatic dry-process processing system that converts bulk quicklime (CaO) into high-purity powdered hydrated lime (calcium hydroxide, Ca(OH)₂). Adopting staged digestion, precise water metering, thermal circulation and closed dust removal technology, it achieves a hydration rate above 96% and adjustable fineness from 100 to 600 mesh. Widely used in flue gas desulfurization, sewage treatment, chemical industry, metallurgy and construction fields.
Stable Purity
Low Labor Cost
Adjustable Fineness
What is Hydrated Lime Production Line?
Hydrated lime (slaked lime / calcium hydroxide) is an indispensable inorganic chemical raw material for modern environmental protection and industrial manufacturing. Traditional manual or semi-automatic lime slaking equipment has many shortcomings: inaccurate lime-water ratio leads to incomplete hydration and low finished product purity; open production causes severe dust pollution; uncontrollable reaction temperature results in over-slaking or under-slaking, unstable fineness and low production efficiency.
Our Full-Automatic Dry Process Hydrated Lime Production Line solves all industry pain points thoroughly. It integrates automatic feeding, crushing, precise water proportioning, staged high-temperature digestion, thermal circulation aging, powder classification and closed dust collection. The whole line runs under negative pressure with zero dust overflow. The exclusive exothermic heat utilization technology stabilizes the hydration reaction, ensuring uniform fineness, high activity and stable quality of finished hydrated lime, becoming the preferred turnkey solution for modern industrial lime processing plants.
Core Structural Composition & Functional Advantages of Hydrated Lime Production Line
1. Automatic Feeding & Crushing System
Equipped with heavy-duty lime crusher and quantitative silo feeding device. It crushes bulk quicklime into uniform particles suitable for hydration reaction, eliminating large particle agglomeration and incomplete digestion. The variable-frequency feeding system ensures stable and continuous material input, laying a foundation for consistent batch quality.
2. PLC Intelligent Precise Water-Lime Proportioning System
The core intelligent control module of the production line. It automatically adjusts water spray volume according to quicklime activity, particle size and production capacity. The atomized water spraying mode realizes full contact between lime and water, avoiding excessive moisture or insufficient hydration. It effectively improves hydration uniformity and product qualification rate.
3. Two-Stage High-Efficiency Hydration & Aging System
Adopts primary rapid hydration + secondary constant-temperature aging process. The primary stage completes rapid exothermic reaction, and the secondary stage uses reaction waste heat for constant-temperature aging to ensure full conversion of residual quicklime. The overall hydration rate is stably above 96%, far exceeding traditional single-stage slaking equipment.
4. Waste Heat Recycling & Constant Temperature Control System
The hydration reaction releases a large amount of heat. The system recycles residual heat to stabilize the internal reaction temperature at 100-120℃, maintaining the optimal hydration reaction state. It avoids low-temperature incomplete reaction and high-temperature powder deterioration, while reducing additional energy consumption and realizing energy-saving production.
5. High-Precision Powder Classification System
Equipped with professional ultrafine powder classifier, which screens and classifies hydrated lime powder accurately. Coarse unreacted particles are returned to the hydration system for secondary processing, and qualified fine powder is sent to the finished product silo. The product fineness is adjustable from 100 to 600 mesh to meet diverse industrial fineness requirements.
6. Full Negative Pressure Closed Dust Removal System
The entire production line operates under fully enclosed negative pressure. Equipped with high-efficiency pulse dust collector, it captures overflow dust completely with zero material loss and zero dust pollution. It fully meets international environmental protection emission standards and solves the dust pollution pain point of traditional lime slaking workshops.
7. Intelligent Central Control & Automatic Packaging System
Full PLC centralized control realizes one-click start and stop, automatic parameter adjustment and real-time operation monitoring. The supporting automatic packaging machine completes quantitative bagging and sealing of finished powder, greatly reducing manual intervention and labor costs, realizing unmanned continuous production.
Core Product Advantages of Hydrated Lime Production Line
1. Ultra-High Hydration Conversion Rate & Stable Purity
Two-stage staged hydration and constant-temperature aging technology ensure sufficient reaction of quicklime. The hydration rate reaches ≥96%, with low residual CaO content. The finished calcium hydroxide powder features high purity, uniform particle size and stable chemical activity, fully meeting high-standard industrial application requirements.
2. Full Automatic Operation & Low Labor Cost
From feeding, hydration, classification to packaging, the whole process is fully automated with intelligent PLC control. It requires only 1-2 auxiliary workers for the entire line, which greatly reduces manual operation errors and labor input, realizing high-efficiency unmanned production.
3. Adjustable Fineness & Wide Application Adaptability
The product fineness is freely adjustable between 100-600 mesh. It can produce common industrial-grade hydrated lime and high-fineness ultrafine calcium hydroxide powder, adapting to multiple scenarios such as power plant desulfurization, sewage treatment, chemical synthesis and building materials processing.
4. Energy-Saving Waste Heat Recycling & Low Operating Cost
Make full use of exothermic heat from hydration reaction for self-temperature stabilization, no extra heating required. The comprehensive energy consumption is extremely low, with power consumption controlled within 4kWh per ton of finished product. Long-term operation can save a lot of energy costs for enterprises.
5. Dust-Free Environmental Protection & Zero Pollution
Fully enclosed negative pressure operation + professional pulse dust removal system realize zero dust overflow and standard flue gas emission. It completely solves the environmental pollution problem of traditional lime slaking workshops, helping enterprises pass environmental assessment smoothly and realize green production.
6. Compact Structure & High Operation Stability
The integrated modular design occupies small floor space with compact layout. The core equipment is made of wear-resistant and corrosion-resistant materials, with low failure rate and long service life. It supports 24-hour continuous stable production with high equipment operation rate and high production efficiency.
Working Principle & Complete Calcination Process of Hydrated Lime Production Line
Core Working Principle
The Hydrated Lime Production Line adopts closed dry-type staged digestion reaction principle. Bulk quicklime is crushed and screened to form uniform particle raw materials. Through PLC precise water-lime ratio control, quicklime fully contacts with atomized water and undergoes violent exothermic hydration reaction (CaO + H₂O = Ca(OH)₂ + heat) at 100-120℃. After staged digestion and thermal aging, unreacted quicklime is completely converted into calcium hydroxide. Finally, qualified fine powder is obtained through high-precision classification and dust collection.
The whole process realizes automatic water proportioning, temperature self-stabilization, waste heat recycling and negative pressure dust removal. It avoids material waste and quality instability of traditional slaking methods, achieving high-efficiency and standardized hydrated lime mass production.
Standard Hydrated Lime Production Flow
Quicklime Raw Material Feeding → Primary Crushing & Fine Screening → Automatic Quantitative Conveying → PLC Precise Water Metering → First-Stage Full Hydration → Second-Stage Aging Digestion → Waste Heat Circulation Stabilization → High-Precision Powder Classification → Closed Dust Collection → Finished Product Storage & Automatic Packaging
Application Scenarios of Hydrated Lime Production Line
Main Application Fields
High-quality hydrated lime produced by automatic production line is widely used in environmental protection and industrial manufacturing fields. It is the core raw material for power plant flue gas desulfurization and industrial wastewater neutralization treatment. It can also be used for chemical calcium salt synthesis, metallurgical desulfurization and dephosphorization, building material additives, soil improvement and road base stabilization, with extremely high industrial market value.
Complete Supporting Production Line Configuration
Quicklime Silo Storage → Quantitative Feeding System → Lime Crushing & Screening → Intelligent Water Proportioning Device → Two-Stage Hydrator → Thermal Aging System → Powder Classifier → Pulse Dust Collector → Finished Product Silo → Automatic Packaging Machine
FAQs of Hydrated Lime Production Line
Q1: What is a hydrated lime production line used for?
A: Hydrated lime production line is a professional dry-process processing system that converts bulk quicklime into high-purity calcium hydroxide (hydrated lime/slaked lime) powder. It is widely used in power plant desulfurization, sewage treatment, chemical industry, metallurgy and building material production.
Q2: What is the difference between dry process and wet process hydrated lime production?
A: Our production line adopts advanced dry process technology, with finished product moisture ≤1%, fine and uniform powder, convenient storage and transportation, suitable for most industrial scenarios. Wet process produces lime slurry with high moisture, only applicable for specific slurry demand scenarios. Dry process has wider market adaptability.
Q3: What is the hydration rate of your production line?
A: Adopting two-stage staged hydration and constant-temperature aging technology, the hydration conversion rate is stably above 96%, which is much higher than traditional single-stage slaking equipment, with less residual quicklime and higher finished product purity.
Q4: What fineness of hydrated lime can the line produce?
A: The finished product fineness is fully adjustable from 100 mesh to 600 mesh, which can meet the requirements of ordinary industrial grade, desulfurization grade and high-purity ultrafine grade hydrated lime.
Q5: Is the production line environmentally friendly?
A: Yes. The whole line adopts fully enclosed negative pressure operation and professional pulse dust removal system, realizing zero dust overflow and standard emission. It solves the dust pollution problem of traditional lime workshops and meets global environmental protection requirements.
Hydrated Lime Production Line Of Real Project Cases
Case 1: 10TPH Environmental Desulfurization Hydrated Lime Plant | Thailand Power Plant Project
Project Info: The customer needed stable high-fineness hydrated lime for power plant flue gas desulfurization. Our full-automatic 10TPH dry process hydrated lime production line was adopted. The finished product fineness reaches 325 mesh with hydration rate over 96%. The fully enclosed dust-free production meets local environmental protection standards. The intelligent control system ensures stable product quality, perfectly matching the long-term desulfurization material demand of the power plant.
Case 2: 20TPH Industrial Grade Calcium Hydroxide Production Line | Vietnam Chemical Plant
Project Info: The customer needs multi-fineness hydrated lime products for chemical raw material processing. Our customized 20TPH production line supports free fineness adjustment from 200 to 600 mesh. The two-stage hydration process improves product purity and activity effectively. The waste heat energy-saving system reduces operating costs significantly, realizing high-value and diversified hydrated lime production.
Case 3: 5TPH Small Automatic Hydrated Lime Line | Philippines Building Material Factory
Project Info: The customer has limited site area and needs low-investment automated lime processing equipment. Our compact 5TPH hydrated lime production line features small footprint, full automation and low failure rate. It realizes one-stop production from quicklime to finished hydrated lime powder, with simple operation and quick investment return, very suitable for small and medium-sized building material enterprises.
Technical Parameters of Hydrated Lime Production Line
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Item
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Specification
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Production Capacity
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2TPH, 5TPH, 10TPH, 15TPH, 20TPH, 30TPH Customizable
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Finished Product Fineness
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100 – 600 Mesh Adjustable
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Hydration Conversion Rate
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≥96% High conversion efficiency
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Reaction Temperature
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100 – 120℃ Constant temperature automatic stabilization
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Finished Product Moisture
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≤1% Dry process powder, easy for storage & transportation
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Power Consumption
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≤4 kWh / Ton of finished hydrated lime
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Operation Mode
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Full automatic PLC intelligent control, 24h continuous production
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Dust Removal Mode
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Full negative pressure closed dust removal, zero dust pollution
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Applicable Raw Material
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Industrial Quicklime (CaO), particle size 0-50mm
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Core Product
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High-purity Dry Powder Hydrated Lime / Calcium Hydroxide
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Automation Level
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Fully automatic feeding, hydration, classification, packaging
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Applicable Industry
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Power plant desulfurization, sewage treatment, chemical industry, metallurgy, construction materials, road engineering
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Core Features
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High hydration rate, full automation, energy-saving, dust-free, adjustable fineness, low operation cost
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Get Custom Hydrated Lime Production Line Solution
Our Lime Shaft Kiln adopts upgraded three-zone cyclic calcination and dual-fuel energy-saving technology, specially optimized for medium and small-scale quicklime production. With core advantages of low investment, small floor space, high lime activity, low energy consumption and environmentally friendly production, it provides cost-effective and stable core equipment support for global small and medium lime manufacturing projects.
Contact us now for free process design, model selection and accurate turnkey quotation!
