FIELD: machine building.
SUBSTANCE: material crushing is performed in a rotary drum partially filled with ferromagnetic grinding bodies. Magnetic force of at least one electromagnet fixed on the drum acts on the grinding bodies, and a magnetic field is formed in the form of separate pulses in the quantity of at least two; besides, the first pulse is divided into a number of shorter pulses. The first pulse characterised by an alternating-sign magnetic field is started to be supplied at an angular position of the electromagnet of -60° to -30°, with a central angle starting from the vector directed from the rotation axis of the housing in a downward vertical direction. The second pulse characterised by a constant magnetic field is started to be supplied at an angular position of the electromagnet of 0° to +30°, and stopped to be supplied at an angular position of the electromagnet of 130° to 165°.
EFFECT: increasing energy efficiency of a crushing process of materials in ball mills.
5 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| SEMI-SELF-GRINDING OF PRIMARILY FERROMAGNETIC STOCK | 2012 |
|
RU2521709C2 |
| METHOD FOR MAGNETOMECHANICAL GRINDING OF MATERIALS USING FERROMAGNETIC MILLING BODIES | 2005 |
|
RU2319546C2 |
| ELECTROMAGNETIC MILL-MIXER | 0 |
|
SU880488A1 |
| METHOD FOR CRUSHING OF MATERIALS IN MILL ROTARY DRUM WITH SOFT MAGNETIC CRUSHING BODIES | 2007 |
|
RU2347618C2 |
| SECTION OF DISCHARGE GRATE FOR DEVICE FOR GRINDING SOLID MATERIALS AND DISCHARGE GRATE CONTAINING IT, DEVICE FOR GRINDING SOLID MATERIALS AND LINE FOR PROCESSING WASTES OF METALLURGICAL PRODUCTION | 2023 |
|
RU2817875C1 |
| LINING OF BALL MILL | 0 |
|
SU1790446A3 |
| VIBRATION RESONANCE PLANETARY-BALL MILL | 2022 |
|
RU2819319C1 |
| ELECTROMAGNETIC BALL MILL | 0 |
|
SU698652A1 |
| GRINDING MEDIUM, SYSTEM AND METHOD FOR OPTIMISING THE GRINDING CONTOUR | 2019 |
|
RU2775723C2 |
| METHOD OF CRUSHING CONSTRUCTION MATERIALS AND DEVICE TO THIS END | 2008 |
|
RU2393920C2 |
