A slaked lime production line is an industrialized production system that converts quicklime (calcium oxide, CaO) into slaked lime (calcium hydroxide, Ca(OH)₂) through a hydration reaction. It is widely used in chemical, building materials, environmental protection (such as flue gas desulfurization and wastewater treatment), agriculture, and construction industries. This production line is typically designed as a fully enclosed, automated system to ensure production safety, environmental compliance, and stable product quality.
Product Structure
Our company's calcium hydroxide production line uses a PLC control system for the entire system, enabling data processing, parameter setting, direct digital display, and automatic alarm functions, thereby improving production efficiency. The production line employs world-class electrical components to ensure operational safety and control system stability.
The entire equipment system consists of nine systems:
Crushing System: Hammer crusher.
Conveying System: Bucket elevator and belt conveyor.
Cooking System: Qualified calcium hydroxide raw material enters the first cooking unit for preliminary cooking, then enters the second or third cooking unit for further cooking or complete decomposition, ultimately obtaining a qualified primary calcium hydroxide product with a cooking rate of 98%.
Residue Discharge System: The first stage discharges residue with a particle size greater than 0.5 cm from the semi-finished product; the second stage discharges sand and coal powder with a particle size less than 0.5 cm. Discharged.
Dust Removal System: This system collects dust generated during production, with a dust removal rate meeting national standards (20 mg/m³), thus avoiding secondary pollution.
Dust Collection System: Utilizes a closed-loop circulating air system for dust collection.
Electrical Control System: Employs a PLC control system and CRT screen display; the PLC system performs data processing, parameter setting, direct digital display, and automatic alarm functions. World-class electrical components are used to ensure the safe operation of the entire production line and the stability of the control system.
Packaging system: Includes non-weighing packaging.
Ingredient dispensing system: Digital display; manual adjustment of water and lime ratio.
Process Flow
- Raw material storage and crushing: Lump quicklime is crushed to a suitable particle size using a jaw crusher.
- Steady flow feeding: Quantitatively fed into the digester via a screw conveyor or steady flow scale;
- Multi-stage digestion: The exothermic reaction CaO + H₂O → Ca(OH)₂ is completed in primary, secondary, and even tertiary digesters;
- Dust removal and environmental protection: A pulse dust collector system recovers dust, achieving dust-free production with a dust collection rate of up to 99.5%.
- Powder classification and packaging: After classification by a powder classifier, qualified fine powder enters the finished product silo and is automatically packaged and output.
