How often do the cartridges in a cartridge dust collector usually need to be replaced?

There are 3 ways to determine if the filter cartridge needs to be replaced.

1. The filter cartridge is damaged, causing dust leakage and needs to be replaced.

2. The differential pressure of the filter cartridge reaches or exceeds the alarm setting value, and the differential pressure alarm is activated.

3. Under some working conditions, the differential pressure of the filter cartridge is always at a low value, not reaching the differential pressure alarm value, but the dust has deterioration, fire and other dangerous factors, it is recommended to replace the filter cartridge if it has been used for more than 3,000 hours, and you can consult our engineers to confirm.

B/Industrial dust collector working environment is harsh, can the cartridge/bag be repeatedly taken out for cleaning or repairing after use?

Shanghai VHICH professional technicians do not recommend this practice, which has two disadvantages.

1. Taking out the filter/bag for cleaning will cause secondary pollution.

2. Repeatedly taking out the filter cartridge will easily cause deformation or damage to the filter cartridge, which in turn will cause damage to the equipment, affect the filtration efficiency, and the emission will not meet the standard and other serious consequences.

C/ My equipment cartridges/bags have been used for a long time, the effect is not good, need to be replaced, but for cost considerations, I only replace part of the cartridges/bags to save money.

We recommend replacing the entire cartridge/bag when it reaches the end of its service life. Replacing only a portion of the cartridge/bag will cause the newly replaced cartridge/bag to be overloaded, which in turn will shorten its service life. We have actual customer cases that show that the cumulative cost of replacing part of the canister/bag is higher than replacing the whole canister/bag, while maintaining the same vacuuming effect and usage time.

After replacing the cartridges/bags in my plant, the differential pressure rises within a short period of time, which affects the suction effect.

The air volume of the fan is variable with the use of the cartridge/bag, and the resistance (pressure loss) of the new cartridge is low.

The resistance (pressure loss) of the new cartridge is low, and if the fan regulator valve is opened too wide, the air volume used will exceed the designed air volume. Excessive

Excessive airflow will make the cartridge/bag work under overload, and the cartridge/bag will be overloaded within a short period of time.

Differential pressure will be too high within a short period of time. When the accumulated differential pressure exceeds the static pressure of the fan, the fan will be out of working range and the airflow will drop sharply.

airflow will drop sharply, and the dust suction effect will also drop sharply. Therefore, after replacing the filter cartridges/bags, it is necessary to close the air regulator valve of the

Therefore, after the replacement of filter cartridges/bags, it is necessary to close the air-regulating valve of the equipment to 1/3, and the above is only for the equipment with air-regulating valve, and the small equipment may not have air-regulating valve.

The above is only for the equipment with regulating valve, small equipment may not have regulating valve, you do not need to pay attention to the regulating valve, can be used directly. If an inverter is used, then after replacing the cartridges/bags

If a frequency converter is used, adjust the frequency to the initial value of the equipment after replacing the cartridges/bags.

Suggestion: Initially, adjust the damper to 1/3, with the use, if you find that the air volume is not enough, you can adjust the damper opening appropriately.

If you find that the airflow is not enough, you can adjust the damper opening of the regulating damper appropriately, do not open the damper to the maximum at once.