Pressure Characteristics of Multiple-Tube Ceramic Filter Pulse Cleaning System

The dynamic pressure characteristics of pulse jet pipe, pulse jet nozzles and ceramic filter can be measured by high-frequency dynamic pressure sensor. The research is focused on the influence of cleaning pressure, the diameter of nozzles, and the ratio of sectional area of nozzles to that of pulse jet pipe on pulse cleaning performance. The results show that the difference of pulse jet nozzles performance increases when cleaning pressure increases. The main reason leading to the difference of pulse cleaning is that the increasing rate of static pressure along cleaning direction is slow after the first large increase. The diameter of pulse jet nozzles has a significance affect on cleaning performance so that the uneven performance can be improved by decreasing the diameter of nozzle along the cleaning direction ladder likely. The ratio of sectional area of nozzles to that of the pulse jet pipe is a key factor in cleaning performance, and the best range of the ratio of sectional area of nozzles to that of the pulse jet pipe in the research is from 45 % to 55 %. Copyright © 2014 IFSA Publishing, S. L.