Lime Slaker
Shanghai Cronus
A lime slaker (or lime hydrator) is an industrial device designed to facilitate the chemical reaction between quicklime (calcium oxide, CaO) and water, a process known as lime slaking or hydration. This reaction converts highly reactive quicklime into hydrated lime (calcium hydroxide, Ca(OH)₂), a more stable and versatile material suitable for various applications.
What is a Lime Slaker?
A lime slaker is a mechanical system that optimizes the controlled addition of water to quicklime. The reaction is exothermic, releasing significant heat:
CaO + H₂O → Ca(OH)₂ + Heat
Modern slakers are engineered to manage this heat and ensure complete hydration, producing a fine, consistent slurry or powder. They come in various designs, including paste slakers, detention slakers, and batch slakers, each suited to specific industrial needs.
Why Slake Lime?
- Safety and Reactivity Control: Quicklime is highly caustic and reactive. Slaking reduces its hazards, making it safer to handle and store.
- Enhanced Usability: Hydrated lime dissolves more readily in water, enabling efficient use in liquid-based processes.
- Neutralization Efficiency: The alkaline properties of hydrated lime are critical for applications like pH adjustment, wastewater treatment, and pollution control.
CRSH Lime Slaking System


No.1 Agitator GKSJ15T (first-stage digestion tank)
Motor Type: YE2-200L1-6 Power:18.5kw 2 sets Pulse dust collector model:HMC-96 Power:5.5kw
No.2 GKSDJ15T Uniaxial stirring
Motor Type: YE2-200L2-6 Power:22kw 1 set
No.3 Water preheating dust removal
1. motor type: 9-26 NO5A right 0°2/18.5 power:18.5kw 1set,Pulse dust collector model:HMC-200
2. motor type: 50GW25-15-3 Power:3kw 1 set
3. motor type: 50GW25-15-4 Power:4kw 2 set
No.4 GKLJ20T Chain stirring digester
motor type: YE2-200L2-6 Power:22kw 1 set
Combined lime-slaking equipment
Lime Slaking equipment-related certificates



The main features of the third-generation lime slaker
Why Choose a Combination Slaker?

A traditional Lime Slaker

Our patented product – Lime Slaker
Related Products with Lime Slaker
Applications of Slaked Lime
After processing in a lime slaker, hydrated lime serves diverse industries:
- Water Treatment: Neutralizes acidic water, removes impurities (e.g., heavy metals), and softens hard water.
- Flue Gas Treatment: Captures sulfur dioxide (SO₂) and other pollutants in power plants and industrial exhaust systems.
- Construction: Used in mortars, plasters, and soil stabilization to improve durability and reduce plasticity.
- Agriculture: Adjusts soil pH to optimize crop growth and acts as a disinfectant in livestock environments.
- Chemical Manufacturing: A precursor in producing calcium-based compounds, bleach, and paper.
Lime slakers play a pivotal role in transforming raw quicklime into a functional material tailored for industrial, environmental, and agricultural uses. By enabling safe and efficient hydration, these systems ensure that the benefits of lime—cost-effectiveness, reactivity, and versatility—are fully harnessed across sectors. Proper slaking not only maximizes performance but also aligns with sustainability goals by reducing waste and improving process efficiency.
