METHOD OF VIBRATING SIEVE DRIVES SYSTEM CONTROL Russian patent published in 2018 - IPC B07B1/42 

FIELD: oil and gas industry.

SUBSTANCE: proposed method primarily relates to the oil and gas industry and can be used to control over the drilling vibrating sieve drives system with a linear or elliptical path of frame oscillations. Method of the vibrating sieves system controlling from two unbalanced exciters includes measuring the first unbalance revolution time, measurement of the phase shift between the second and the first unbalances angles of rotation, determination of the difference between the obtained values and the phase shift value set by the vibrating sieve structure and the effect on the unbalanced exciters motors to reduce this difference to the zero value. In addition, performing the second unbalance time measurement. Then, determining the difference in the times of the unbalances revolutions. Then determining this difference and the phase difference linear combination, and if initially the phase difference sign is positive and the linear combination current sign is positive, then disconnecting the rotating in the positive direction unbalance drive motor from the mains. If the phases linear combination current sign is negative, then connecting this motor to the mains. If initially the phase difference sign is negative and the linear combination current sign is negative, then disconnecting the rotating in the negative direction unbalance drive motor from the mains. If the linear combination current sign is positive, then connecting this motor to the mains.

EFFECT: increase in the vibrating sieve capacity by the adjustment quality due to the use of relay control in the phase space.

1 cl, 6 dwg