150,000 T/Y High-Specific-Surface-Area Calcium Hydroxide Production Line in Hunan

Project Overview

To meet the urgent demand of the high-end market for high-activity calcium hydroxide, a high-tech chemical enterprise in Hunan Province leveraged its premium resources to invest in and construct a technologically advanced production line. The project required the finished calcium hydroxide powder to possess a high specific surface area, with the fineness adjustable within the range of 200~325 mesh. After rigorous multi-party evaluation, the client ultimately selected the professionally designed CR High-Specific-Surface-Area Calcium Hydroxide Production Line solution from Cronus Machinery.

Project Details

Quicklime Raw Material → Quantitative Feeder → Lime Slaker → Water Mist Dust Collector

Quicklime raw material is fed into the CR Lime Slaker via the quantitative feeder. By precisely controlling the water-lime ratio, temperature, and reaction time, the generation of high-activity, high-specific-surface-area calcium hydroxide is ensured. The reaction between quicklime and water in the slaker produces a large amount of dust, making the Water Mist Dust Collector particularly suitable for handling the high-temperature, high-humidity exhaust gas from this stage.

Slaked Calcium Hydroxide → Hydrated Lime Classifier → Hydrated Lime Grinding Mill → Collection System → High-Specific-Surface Calcium Hydroxide Powder

The slaked calcium hydroxide first passes through the CR Hydrated Lime Classifier for preliminary classification. Calcium hydroxide powder meeting the fineness requirement is discharged and collected as finished product, while the coarse powder that does not meet the requirement enters the CR Hydrated Lime Grinding Mill for grinding and classification. The closed-circuit system formed by these two units can flexibly produce high-specific-surface calcium hydroxide powder within the 200~325 mesh range.

Project Advantages

High Specific Surface Area: The lime slaker ensures that the slaked calcium hydroxide possesses high activity and a high specific surface area by precisely controlling the water-lime ratio, reaction temperature, and residence time.

Precise Control: Utilizing the combined process of "preliminary classification by classifier + closed-circuit grinding by grinding mill," the system can flexibly and precisely adjust the finished product fineness within the 200~325 mesh range while maximally preserving the crystal structure and activity of the final calcium hydroxide powder.