Abstract: In order to tackle the problem relating to severe wear of screen plates of sieve bend, and the inconvenience in their replacement, work is made on the renovation of the cleaned small coal and refuse buffer boxes and sieve bends in line with the specific operating conditions of the plant, with the use of the technologies currently available. Practice shows that the renovation has led to much longer service life of screen plates, less time required for fitting and replacing plates, higher maintenance efficiency and operating safety, and reduced medium consumption.