Bag deduster online pulse blowing ash removal control method

Abstract

The invention discloses a bag deduster online pulse blowing ash removal control method. An ash removal control time sequence starts from the first pulse valve of a first room to the first pulse valve of a second room, then to the first pulse valve of a third room until to the first pulse valve of a last room, then to the second pulse valve of the first room, ... until to the second pulse valve of the last room, then to the third pulse valve of the first room, ... until to the third pulse valve of the last room, and then to the last pulse valve of the first room, ... until to the last pulse valve of the last room. The method which allows the resistance fluctuation among all the above rooms to be small during ash removal is in favor of the uniform airflow distribution among all the rooms, substantially prolongs the ash removal time interval of the deduster ash removal pulse valves, and reduces the application amount of compressed air for the ash removal.

Description

technical field [0001] The invention relates to a dust removal control method for a bag type dust collector, in particular to an online pulse jet dust removal control method for a bag type dust collector. Background technique [0002] At present, in the process of non-ferrous smelting and cement production, the dust concentration at the inlet of the bag filter increases from more than 100 grams to more than several hundred grams, and some even reach several kilograms, which causes the original dust removal method of the dust collector to fail. The new requirements are applicable; the original dust removal control method of the dust collector is to clean the dust in the order of cleaning the dust in the room. When all the pulse valve cleaning actions of a certain room are completed, the same action is performed for the next room, and the interval between each action is 0.1s. 10s, this kind of ash removal control method makes the ash volume in the room too concentrated, so tha...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of non-ferrous smelting and cement production, the dust concentration at the inlet of the bag filter increases from more than 100 grams to hundreds of grams, and some even reach several kilograms, resulting in the inability of the original dust removal method The new requirements are applicable; the original dust removal control method of the dust collector is to clean the dust in the order of cleaning the dust in the room. When all the pulse valve cleaning actions of a certain room are completed, the same action is performed for the next room, and the interval between each action is 0.1s. 10s, this kind of ash removal control method makes the ash volume in the room too concentrated, so that the ash hopper of the original dust collector is seriously blocked. Purification efficiency of bag filter