This machine is an internally classified high-pressure ultra-fine roller mill, integrating crushing and classification into one unit. It ingeniously utilizes an curved grinding track and reasonably applies the mechanisms of impact, compression, and attrition.
This machine is an internally classified high-pressure ultra-fine roller mill, integrating crushing and classification into one unit. It ingeniously utilizes an curved grinding track and reasonably applies the mechanisms of impact, compression, and attrition.
Working Principle
When the main shaft rotates, the auxiliary shafts rotate accordingly. The grinding rollers revolve around the main shaft while simultaneously rotating around their own auxiliary shafts, generating strong centrifugal force and producing intense roller-compaction action with the grinding ring. Under the combined action of centrifugal force and the rotational force of the grinding rollers, the material enters the grinding zone formed between the rollers and the grinding ring, where it is crushed. The crushed material falls onto the material throwing disc and is then lifted by the system’s negative pressure into the classification chamber for classification. The qualified fine powder enters the collection system, while the coarse material falls back for further grinding. The purified air is discharged by the induced draft fan.
Application Fields
Widely suitable for grinding and pulverizing conventional materials such as ground calcium carbonate, kaolin, marble, barite, gypsum, calcium oxide, calcium hydroxide, activated carbon, pitch coke, pyrolytic carbon black, limestone, calcite, talc, graphite, and other non-flammable and non-explosive materials with moisture content below 8% and Mohs hardness below 8.
Flow chart
| Modelo | GXM30 | GXM40 | GXM50 |
|---|---|---|---|
| Number of grinding rollers | 15 | 21 | 30 |
| Grinding track diameter (mm) | 720 | 900 | 1200 |
| Finura del producto | 5–45 μm | 5–45 μm | 5–45 μm |
| Output (kg/h) | 800 | 1200 | 1600 |
| Power (kW) | 100 | 135 | 185 |
Advantages & Features
· D97 = (5–45) μm (i.e., 325–2500 mesh) – Narrow particle size distribution with frequency conversion adjustment.
· Fineness control – Intelligent control, adjustable product particle size distribution, strict control of oversized particles.
· Lower energy consumption – Innovative grinding mechanism; compared with multi-roller mills, output increases by 30% under the same energy consumption.
· Reduced wear – Wear parts are made of composite new wear-resistant materials, offering long service life.
· Excellent environmental performance – The main unit features vibration reduction and noise suppression design; operates under negative pressure with no dust pollution at the site.
It consists of a body, base frame, crushing device, classifying device, discharge system, transmission device, motor, etc. The auxiliary equipment mainly includes the main unit, cyclone collector, dust collector, high-pressure centrifugal fan, discharge valve, and electrical control cabinet, forming a complete set of the system.
