Ring Roller Mill Production Process

It features excellent performance, high efficiency, small floor space and easy installation, with good product particle size indicators and stable performance.
採用環輥磨的碳酸鈣超細研磨工藝，運用獨家「多輥小徑」設計。透過精準控制環輥與磨環的配合間隙，可將碳酸鈣粉體加工至最高 2500 目（約 5 微米）的超細精度。該工藝相較傳統設備能耗更低，成品中過磨粉體占比少，既能保障碳酸鈣粉體粒度分佈均勻，又可降低其吸油值，適用於加工莫氏硬度 5 級以下、細度要求適中的碳酸鈣物料。

How it works

The ring roller mill crushes materials through the combined principles of impact, extrusion, and grinding. The grinding ring bracket is designed with a large clearance between the grinding ring and the pin shaft. As material passes through the gap between the grinding rings, it is impacted, squeezed, and ground by the rings, resulting in effective size reduction. After crushing, the material falls under gravity onto the feed tray and is then carried by airflow into the classification chamber. Qualified fine particles are conveyed by the classifier rotor into the collection system, while coarser particles are thrown against the split ring wall and returned to the crushing chamber for re-grinding. In the case of a double-layer grinding machine, the material undergoes secondary grinding as it passes through the gap between the second set of grinding rings, ensuring further refinement.

Performance and features

Multi-layer Grinding Components, Full Grinding & Excellent Fineness for Calcium Carbonate

Adopting a multi-layer distributed grinding component structure with multiple grinding rings per layer, it processes calcium carbonate materials through the combined effects of impact, rolling and grinding, precisely meeting ultra-fine grinding requirements. Materials pass through the gaps layer by layer from top to bottom, undergoing multiple progressive grinding processes for full milling and superior finished product fineness.

High Efficiency & Low Consumption, Higher Grinding Pressure for Calcium Carbonate Processing

Compared with Raymond mills and air classifying mills, it doubles the production efficiency of calcium carbonate under the same power conditions. The grinding pressure of the rollers is increased by 30–40% with high-pressure centrifugal force, leading the industry in grinding efficiency and energy utilization rate.

High Capacity, Suitable for Batch Processing of Calcium Carbonate

Taking calcium carbonate grinding as an example, when the finished product fineness reaches 10μm, the equipment can achieve a capacity of over 1 ton per hour, efficiently meeting the demands of large-batch, high-precision powder processing and greatly shortening the production cycle.

Controllable Fineness, Outstanding Environmental Performance for Calcium Carbonate Processing

The D97 fineness of the calcium carbonate finished product can reach 3–35μm, comparable to fluidized bed air classifying mills. Equipped with a stepless speed regulator for the classifying impeller, it allows flexible fineness adjustment without shutdown, with full fine powder recovery and no dust pollution, balancing process flexibility and environmental friendliness.

Technical Parameters

Parameters / Model680780880980
Main power (kW)3755~7575~90132
Rotor speed (r/min)1518.52230
Particle size (μm)5~455~455~455~45
Air volume(max) (m³/min)3600600075009000
Output (kg/h)300~800500~2000600~2500800~4500
Power (kW)90145155225
Total weight (t)6101118

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