FIELD: process engineering.
SUBSTANCE: invention relates to recovery of open filters of solid articles. Proposed method comprises the steps that follow. (a) Parameter (7) is defined as filter recoverability index. (b) Parameter (7) is compared with first threshold magnitude (4). (c) Fractional time interval (3) whereat parameter (7) reaches said first threshold magnitude is defined within the limits of check period (2). (d) Said fractional time interval (3) is compared with first minimum fractional time interval corresponding to minimum duration of recovery within said check period (2). (e) In case said fractional time interval (3) does not reach the duration of first minimum fractional time interval measures are taken to influence said parameter (7) to make it correspond to first interval and first threshold magnitude (4) is reached and/or recovery of open filter (1) of solid particles is performed. Note here that parameter at stage (b) is additionally compared with second threshold magnitude (8) to check if attainment of said first threshold magnitude (4) is possible by taking first measure of influencing parameter (7) taken at stage (e) solely at positive result.
EFFECT: efficient and complete recovery.
6 cl, 3 dwg
