Why Are Mineral Sizer The Most Suitable Equipment For Coal Crushing？
At present, there are multiple specifications, models, brands and types of crushing equipment on the market, which can be divided into mineral sizer, hammer crusher, impact crusher, jaw crusher, roll crusher and so on according to their different working principles and applicable future. So what kind of crushing equipment is a crusher specially developed for coal? After a comparison of some data, we believe mineral sizer is the most suitable for coal crushing equipment and the most cost-effective crusher.
The most important criteria that affect the type of crusher are:
– Handling capacity,
– Maximum and average compressive strength (UCS) of the material,
– Wear properties of materials,
Feed size and required finished (outgoing) material size
Table 4- Comparison of main parameters of different types of crushers
| Parameter | Sizer | Roll Crusher | Gyratory |
| Crushing ratio
F100 / P90 |
4 to 6 | 4 to 6 | 5 to 7 |
| Throughput | Up to 12.000 t/h | Up to 12.000 t/h | Up to 14.000 t/h |
| Abrasiveness | Medium / High | Medium / High | Low |
| Max. strength UCS | Up to 240 MPa | Up to 200 MPa | Up to 500 MPa |
| Crusher operating weight | Low | Medium | High |
| Crusher total dimensions | Low | Medium | High |
| Selective crushing | Good | Medium | Medium |
| Braking forces during crushing process | Compression + impact + sizing | Compression + impact | Compression only |
| Relative service and maintenance time | Low | Low | Long |
| Relative power consumption | Low | Medium | High |
| Relative feeding height of the plant | Low | Low | High |
| Relative simplicity of relocation process | Easy | Easy | Complicated |
| Manufacturing and installation time | Fast | Fast | Long |
| Relative CAPEX+OPEX | Low | Medium | High |
Other advantages of the graded mineral sizer
The graded mineral sizer has different advantages compared to other types of crushing equipment, such as:
– Selective crushing (due to the constant gap between rollers, smaller particles will pass through the classifier without being broken, thus avoiding excessive crushing and saving energy, operating costs and spare parts expenditure),
– Minimal powder production,
– Produces the least dust,
– Using a unique combination of three breaking forces at the same time – compression, impact, styling,
– Light weight,
– Large handling capacity,
– Equipment size is small,
– Low vibration,
– Easier maintenance compared to other types of crushers,
– Can handle sticky substances,
– Lower installation power compared to other types of crushers
Based on the analysis of the input data of the above project objectives, and considering the characteristics of the material, as well as the comparison of the main technical, technological and economic parameters, it was decided to select the classifier mineral sizer as the most suitable crushing equipment for achieving the required objectives.
