Pin Mill
Pin Mill / MJL-P
The pin mill is designed under the guidance of our German experts. There are single power series (moving disc & static disc) and double power series (moving disc + moving disc). The material is evenly fed into the grinding chamber by the feeding system, and is strongly impacted by the high-speed rotating crushing disc, and is subjected to various comprehensive forces such as friction, shearing, and collision between the needle rods, so that the material is ground or dispersed and depolymerized. According to the different properties of the material, the combination of the moving disc and the static disc can be combined in different structures to meet the grinding requirements of different materials.
Product features
- Pin type crushing disc, no screen structure, fast speed, large capacity and low heat generation.
- Single power or double power can be selected, the line speed can reach up to 240m/s, strong impact force and shear force, and the product particle size is fine.
- It is suitable for dispersing and deagglomerating
- It is suitable for continuous high-speed mixing for ultrafine powder and liquid, and particle surface coating modification.
- It can be equipped with an air classifier to control the product fineness.
- Compact in structure, the mill is extremely easy to disassemble and clean.
Working Principle
Fluidized Bed Opposed Air Jet Mill: After the compressed air is filtered and dried, it is sprayed into the grinding chamber at high speed through the Laval nozzle. At the intersection of multiple high-pressure airflows, the materials are repeatedly collided, rubbed, and sheared to be crushed. The crushed materials rise with the suction of the fan. The airflow moves to the classification zone. Under the action of the strong centrifugal force generated by the high-speed rotating classification turbine, the coarse and fine materials are separated. The fine particles that meet the particle size requirements enter the cyclone separator and dust collector through the classification wheel for collection, and the coarse particles descend to the crushing zone and continue to be crushed.
Product Parameters
| Type | Model | 250 | 400 | 500 | 630 | 800 |
|---|---|---|---|---|---|---|
| Coarse powder | Fineness (mesh) | 20 - 200 | 20 - 200 | 20 - 200 | 20 - 200 | 20 - 200 |
| speed (m/s) | 75 - 85 | 75 - 85 | 75 - 85 | 75 - 85 | 75 - 85 | |
| power (kw) | 7.5 | 18.5 | 22 | 37 | 55 | |
| Fine powder | Fineness (mesh) | 60 - 300 | 60 - 300 | 60 - 300 | 60 - 300 | 60 - 300 |
| speed (m/s) | 100 - 120 | 100 - 120 | 100 - 120 | 100 - 120 | 100 - 120 | |
| power (kw) | 15 | 30 | 37 | 55 | 75 | |
| Ultra fine powder | Fineness (mesh) | 100-2500 | 100-2500 | 100-2500 | 100-2500 | 100-2500 |
| speed (m/s) | 200-240 | 200-240 | - | 200-240 | 200-240 | |
| power (kw) | 15 x 2 | 30 x 2 | - | 55 x 2 | 90x 2 |
Note: The production capacity is closely related to the particle size, specific gravity, hardness, moisture and other indicators of the raw materials. The above is only for selection reference.
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