Annual production of 200,000 tons of calcium hydroxide production line

Publication time：2025-07-04
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Project Background of the 200,000 Tons per Year Calcium Hydroxide Production Line

A customer who has been engaged in calcium hydroxide production for a long time selects the CRQ calcium hydroxide production line equipment. Under the same power, the production capacity is doubled, the product stability is significantly improved, and the energy consumption is significantly reduced.

The calcium hydroxide production line in Guangdong, China has an annual output of 200,000 tons of calcium hydroxide. The production capacity is 10 - 20t/h, the feed particle size is 0 - 30mm, and the discharge particle size reaches 325 mesh, meeting the high - end industrial requirements.

This production line has a strong production capacity and a high compatibility of feed particle size, reducing the difficulty of raw material procurement and screening. The discharge particle size is fine, which has obvious advantages in the production of high - end chemical products, ensuring product quality and enhancing the competitiveness of enterprises.

Process of the CRQ Calcium Hydroxide Production Line

Primary Digestion: The CRQ calcium hydroxide production line is fully automated. Lumpy lime is crushed and then enters the lime digester, where it is fully mixed and reacted with water. The control system monitors the feed ratio in real - time, and the temperature is controlled at 80℃±5℃ by circulating cooling water to avoid caking of the product due to overheating. The semi - finished product after primary digestion has a moisture content of about 15% and is in a uniform flocculent state.

Secondary Digestion: The materials after primary digestion enter the secondary customized digestion bin through a closed conveyor belt. The double - shaft agitator in the bin continuously stirs at a rotation speed of 25r/min to ensure uniform reaction. On - site measurements show that after secondary digestion for 4 hours in a constant - temperature environment of 60℃, the conversion rate of calcium hydroxide is increased from 85% after primary digestion to over 98%, and the activity of the product reaches 300mL.

Fine Classification: The finished product is screened by a calcium hydroxide powder separator (separation accuracy ≤45μm), and about 92% of the materials meet the first - class product standard (fineness ≥325 mesh) and are directly packaged as end - products.

Tail Material Recycling: The remaining 8% of the tailings are re - processed by a calcium hydroxide grinding mill, and the fineness is increased to 325 mesh and reused as a filler for putty powder. The system is equipped with a pulse dust collector, achieving a dust recovery rate of ≥99%, reducing raw material waste and decreasing the comprehensive cost by 18%.

Summarize

The 200,000 - ton - per - year calcium hydroxide production line in Guangdong, through processes such as primary digestion and secondary customized digestion systems, realizes efficient, energy - saving, and environmentally friendly calcium hydroxide production.