Contents Catalog
Project Basic Information
Raw Material: Limestone
Finished Product Fineness: 200 mesh
Design Capacity: 2–3 tons per hour (TPH)
Project Location: Zimbabwe
Production Line Type: Ring-roller grinding production line
Core Equipment: Cronus CRRM1300 Ring-Roller Mill
Overview of Cronus CRRM1300 Ring-Roller Mill
The Cronus CRRM1300 high-pressure suspended roller mill is a high-efficiency and energy-saving grinding equipment independently developed and manufactured by Shanghai Cronus Machinery Co., Ltd. It features high grinding efficiency, low power consumption, compact structure, small floor space, low initial investment, simple operation and reliable environmental protection performance, which is a classic and mature grinding equipment for mineral powder processing.
Matched with limestone grinding working conditions, the stable output range of the CRRM1300 mill is 2.1–5.6 TPH, which perfectly covers the 2–3 TPH capacity requirement of this Zimbabwe project. The equipment supports a maximum feeding particle size of 25mm, and the finished powder fineness is flexibly adjustable from 10 mesh to 425 mesh. For partial materials, the fineness can reach up to 600 mesh, fully meeting the 200-mesh standard of limestone powder required by the project and adapting to diverse fineness customization demands.
Application Scope & Environmental Advantages
The Cronus CRRM1300 ring-roller mill is applicable to fine powder processing of various non-flammable and non-explosive mineral materials with Mohs hardness ≤7 and moisture content ＜6%. Limestone completely conforms to the equipment’s processing parameters, making the equipment highly targeted for this project.
This production line is equipped with complete environmental protection supporting systems including pulse dust collectors and cyclone separators. It effectively controls dust escape and reduces operating noise, fully complying with international environmental protection emission standards and local environmental regulations in Zimbabwe, realizing green and pollution-free production.
Adopting the high-pressure suspended roller grinding principle, the equipment relies on the relative extrusion and grinding motion between grinding rollers and grinding rings to crush materials. It achieves efficient grinding and precise fineness control, ensuring stable output and qualified particle size of finished limestone powder.
Complete Production Line Process Flow
1. Raw Material Preparation
Select high-quality limestone with moderate hardness and low moisture content as the raw material to guarantee grinding efficiency and finished product quality. According to the raw stone particle size and hardness, configure matched coarse crushing equipment (hammer crusher or cone crusher) for pre-treatment.
2. Coarse Crushing
Large bulk limestone is crushed into uniform small-particle materials that meet the mill’s feeding size standard (≤25mm), eliminating oversized materials and providing qualified feed for the subsequent grinding process.
3. Main Machine Grinding & Classification
The qualified crushed limestone is evenly sent to the grinding chamber of the Cronus CRRM1300 main unit for rolling and grinding. The ground powder is lifted by airflow to the integrated classification system for screening. Unqualified coarse particles are returned to the grinding chamber for re-grinding, while powders reaching the 200-mesh fineness standard pass through the classifier with airflow.
4. Powder Collection & Conveying
Qualified limestone powder is transported to the powder collector through the pipeline for gas-powder separation and collection. The collected finished powder is stably conveyed to the finished product silo via a special conveying system to realize centralized storage.
5. Finished Product Packaging
According to customer’s actual demand, flexible packaging schemes are adopted. Moisture-proof, shockproof and sealed packaging measures are taken to ensure the dryness and integrity of limestone powder during storage and transportation, guaranteeing stable product quality.
Company Strength
Shanghai Cronus Machinery Co., Ltd. is a wholly-owned subsidiary of Guilin Mining Machinery Co., Ltd. Founded in 1973, the parent company is a key backbone enterprise in Guangxi’s machinery manufacturing industry, with more than 50 years of professional R&D and manufacturing experience in Raymond mills, ultra-fine ring-roller mills, vertical mills, hydrated lime production lines and other mineral processing equipment.
The company’s products are sold worldwide, covering Eastern Europe, the Middle East, Asia, Africa, the Americas, Oceania and other regions, serving more than 10,000 global customers with reliable equipment quality and professional after-sales service, and has accumulated rich overseas project implementation experience in African mineral processing projects including Zimbabwe.
