The failure of the rubber diaphragm of the Pulse valve in The Fifth Generation Pulse Controller is a common fault, which directly affects the dust cleaning effect. This equipment belongs to the external filtration type, with a frame installed inside the bag. It is necessary to check whether the parts that fix the filter bag are loose and whether the tension of the filter bag is appropriate. Therefore, it is necessary to remove oil mist and water droplets, and the oil-water separator should be cleaned frequently to prevent malfunction of the moving mechanism and clogging of the filter bags.

Before The Fifth Generation Pulse Controller stops running, in addition to thorough dust cleaning, the following issues should also be noted:

Moisture condensation often occurs in the bag chamber. This is caused by the cooling of moist gas, especially the gas produced by combustion. Therefore, before the system cools down, the moist gas should be completely discharged and replaced with dry air. That is, after the process equipment stops running, The exhaust fan of The Fifth Generation Pulse Controller should run for some time before stopping.

During the period of long-term shutdown, full attention should be paid to the cleaning and rust prevention of the fan to prevent dust and rainwater from entering the bearings. Before stopping the operation, the accumulated ash in the ash hopper should be drained completely. The flight clearance mechanism and the drive part should be fully oiled.

3. During the period when the bag filter is not in operation, conducting short-term regular runs is a better maintenance method to ensure the normal operation of the dust removal system.

The Fifth Generation Pulse Controller refers to the method of removing the dust adhering to the filter medium (filter bag or filter cartridge) by blowing compressed air. Depending on The size of The Fifth Generation Pulse Controller, there may be several groups of pulse valves, controlled by the pulse controller or PLC. Each time, one group of pulse valves is opened to remove the dust of the part of the filter bags or filter cartridges it controls, while the other filter bags or filter cartridges work normally. After a period of time, the next group of pulse valves opens to clean the next part of the dust collector. The dust collector is composed of ash hopper, upper box, middle box, lower box and other parts. The upper, middle and lower boxes are of compartments structure. During operation, the dusty gas enters the ash hopper through the air inlet duct. Coarse dust particles directly fall to the bottom of the ash hopper, while fine dust particles follow the airflow to turn upward and enter the middle and lower box bodies. Dust accumulates on the outer surface of the filter bags. The filtered gas then enters the upper box body to the clean gas collection pipe - exhaust duct, and is discharged into the atmosphere by the exhaust fan. The ash cleaning process involves first cutting off the clean air outlet duct of the chamber to ensure that the cloth bags in the chamber are in a state where no air flows through (cleaning by stopping the air in each chamber separately). Then, the pulse valve is opened and compressed air is used for pulse jet cleaning. The shut-off valve is closed for a sufficient period of time to ensure that the dust stripped from the filter bags after jet cleaning settles in the ash hopper, avoiding the phenomenon that the dust adheres to the surface of adjacent filter bags with the airflow after detsing from the surface of the filter bags, thus ensuring thorough cleaning of the filter bags. And the exhaust valve, pulse valve and ash discharge valve, etc. are fully automatically controlled by the programmable controller. Dusty gas enters through the air inlet. When passing through the ash hopper, some large particles of dust in the gas are separated under the action of inertial force and gravity and directly fall to the bottom of the ash hopper. The dusty gas passes through the ash hopper and then enters the filter bag filtration area of the middle box. The gas passes through the filter bags, and the dust is retained on the outer surface of the filter bags. The purified gas enters the upper box through the filter bag opening and is then discharged from the air outlet.

The Fifth Generation Pulse Controller is that when the dusty gas enters the dust collector from the air inlet, it first encounters the inclined plate and baffle between the air inlet and outlet. Then the airflow turns and flows into the ash hopper. At the same time, the airflow velocity slows down. Due to the inertial effect, the coarse particle dust in the gas flows directly into the ash hopper. It serves the function of pre-dust collection. The airflow entering the ash hopper then turns upward and passes through the filter bags equipped with metal frames inside. Dust is captured on the outer surface of the filter bags. The purified gas enters the upper clean chamber of the filter bag chamber and is discharged at the air outlet. During the purification process of the dusty gas passing through the filter bags, more and more dust accumulates on the filter bags over time, increasing the resistance of the filter bags. This leads to a gradual decrease in the processing air volume. To ensure normal operation, the resistance should be controlled within a certain range (140-170 mm water column). Once the range is exceeded, the filter bags need to be cleaned. During the cleaning process, the pulse control instrument triggers each control valve in sequence to open the pulse valve. The compressed air in the air tank is sprayed into the corresponding filter bags through the steam tubes at each hole of the blowing pipe. The filter bags expand rapidly in an instant. Make the dust accumulated on the surface of the filter bag fall off and restore the filter bag to its initial state. The cleared dust falls into the ash hopper and is discharged from the machine body through the ash discharge system. This enables the dust accumulated on the filter bags to be periodically pulse-blown and cleaned. The pulse dust collector allows the purified gas to pass through normally, ensuring the operation of the dust removal system.

The Fifth Generation Pulse Controller https://www.cnsbfec.com/DMK-5CSA-Fifth-Generation-Pulse-Controller.html