100,000 TPY Calcium Oxide Powder Grinding Production Line in Guizhou

Project Overview

A special mineral processing enterprise in Guizhou built a calcium oxide powder production line. The project needs to efficiently handle strongly alkaline and easily adherent calcium oxide. After comprehensive evaluation, the customer selected the GK2150 Raymond mill from Guilin Mining Machinery. This production line operates stably with high energy efficiency. The fineness of calcium oxide powder is adjustable from 200 to 325 mesh via frequency conversion, and the output is flexibly controllable at 15~20 t/h.

Project Details

Calcium oxide materials stored in the raw material silo are fed into the GK2150 Raymond mill for grinding and crushing by a belt feeder. Aiming at the characteristics of calcium oxide such as brittle texture, strong alkalinity and easy adhesion, the core grinding components (roller/ring) of the mill are made of anti-corrosion and wear-resistant materials like high manganese steel, and anti-corrosion coating is applied on the inner wall. It effectively resists corrosion and abrasion, extends equipment service life and ensures the purity of calcium oxide powder. The fineness of calcium oxide powder can be flexibly adjusted between 200 and 325 mesh by changing the rotating speed of the classifier impeller.

A two-stage collection system is adopted. Parallel double cyclone collectors serve as the primary collector, with efficiency increased by 10%~15% compared with a single cyclone, recovering most fine calcium oxide powder. The pulse baghouse dust collector acts as the secondary collection and terminal environmental protection equipment. It uses membrane-covered waterproof and oil-proof filter bags to prevent adhesion, ensuring the exhaust gas emission concentration <30mg/m³, and recovers ultra-fine calcium oxide powder, bringing the total system recovery rate above 99.9%. The finished product silo is equipped with a silo-top dust collector to prevent dust escape during discharging. Finally, finished calcium oxide powder is packed by a high-speed automatic packaging machine (≥15 t/h).

Project Advantages

Anti-corrosion & Wear Resistance: Targeting the strong corrosion and abrasion characteristics of calcium oxide, the core grinding parts of the GK2150 Raymond mill adopt special wear-resistant materials such as high manganese steel, and anti-corrosion coating is applied on the inner wall, solving the industry pain points.

Precise & Controllable: Frequency conversion adjustment of classifier rotating speed enables accurate and flexible production of calcium oxide powder of 200~325 mesh.

Clean Production: From raw material silo (anti-caking design), closed conveying to finished product silo (silo-top dust removal), the whole process adopts negative-pressure closed design to completely eliminate dust leakage and maintain a clean production environment.