METHOD FOR REGENERATION OF ELECTRIC PRECIPITATOR ELECTRODES AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC B03C3/68 

FIELD: technological processes.

SUBSTANCE: invention relates to electric precipitator electrodes regeneration method consisting in periodic regeneration of electrodes. Method is characterized by the fact that period of time is measured from completion of regeneration of corona-forming electrodes prior to start of reduction of current of corona or increase of voltage at switched off regeneration of corona-forming electrodes of investigated field of electric precipitator, electric precipitator, calculating specific electrical resistance of dust in analyzed field of electric precipitator, calculating interval of regeneration of precipitating electrodes and setting interval of regeneration of precipitating electrodes of investigated field of electric precipitator as follows: VR for first ESP field is calculated by the following formula: ρ_v1f=10^5.9+kQτce1f/Lc1f, (1) further calculating and setting for the first field the period of regeneration of the precipitating electrodes of the ESP with allowance for dust resistivity by the following formula: τ_pe1f=30τ_ce1f(3.14-0.25lgρ_v1f)/(13lgρ_v1f-77), (2) designations in formulas (1) and (2) are as follows: τ_ce1f is the measured period of time between the end of regeneration of the corona-forming electrodes and the moment of decreasing corona current or increasing the voltage at the corona-forming electrodes of the first field; ρ_v1f is the dust volume resistivity at the first field; k is coefficient depending on ESP type; Q is gas flow rate at first field; η_1f is degree of gas cleaning by first field of ESP; τ_ce1f – regeneration interval of corona-forming electrodes of the first field; τ_pe1f is a regeneration interval of precipitation electrodes of the first field; L_c1f is the length of the corona-forming electrodes of the first field, and then the above operations are repeated for all fields of the ESP using a software device. Invention also relates to the device.

EFFECT: use of disclosed invention increases degree of purification of gases.

2 cl, 1 dwg