A mill grinding unit with roller jenis (roller type) typically refers to a grinding mill that utilizes rollers to crush or grind materials. There are several types of roller mills used in industries like cement, mining, food processing, and chemicals. Below are some common roller jenis (roller types) used in grinding units:
1. Vertical Roller Mill (VRM)
– Uses hydraulic-pressed rollers against a rotating table.
– Common in cement and coal grinding.
– Types of rollers:
– Flat rollers: For raw material grinding.
– Convex/Concave rollers: For better grinding efficiency.
2. Raymond Roller Mill
– Uses spring-loaded rollers pressing against a rotating ring.
– Used for fine powder production (limestone, barite, talc).
3. High-Pressure Grinding Rolls (HPGR)
– Uses two counter-rotating rollers with high pressure.
– Applied in mineral processing & cement..jpg)
4. Ball Mill with Roller Press (Pre-grinding Unit)
– A combination of roller press + ball mill for energy-efficient grinding.
5. Three-Roller Mill / Five-Roller Mill
– Used in industries like paint, ink, and chocolate refining.
Key Features of Roller Mills:
- Adjustable grinding pressure (hydraulic/pneumatic/spring system).
- Wear-resistant roller surfaces (hardfacing, tungsten carbide).
- Different roller profiles (flat, grooved, corrugated) depending on material hardness.
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