Multi bag filter: It is a new type of filtration system, in which the filter bag is supported by a metal mesh basket inside the filter machine. The liquid flows in from the inlet and flows out from the outlet after being filtered by the filter bag. Impurities are intercepted in the filter bag and can continue to be used after replacing the filter bag. Bag filtration has a large processing capacity, small volume, and large pollutant holding capacity. Based on the working principle and structure of the bag filtration system, it is convenient and fast to replace the filter bag, and the filter machine is free of cleaning, saving labor and time. The probability of side leakage of the filter bag is small, which effectively ensures the filtration quality.

The daily maintenance of multi bag filters mainly includes the following key steps:

1. Daily inspection and cleaning

• Appearance inspection: Regularly check whether the equipment casing is worn, corroded, or leaking, and tighten loose parts.  ‌

Filter bag inspection: Observe whether the filter bag is damaged, blocked, or aged, and replace it promptly if any abnormalities are found.  ‌

Surface cleaning: Wipe the equipment casing with a soft cloth to remove oil and dust, and avoid using hard tools.  ‌

2. Monitoring of operating parameters

Pressure difference monitoring: Regularly record the pressure difference between the inlet and outlet (normal range 800-1500Pa). If the pressure difference suddenly increases, check for filter bag blockage or pipeline air leakage.  ‌

Flow and pressure control: Avoid excessive flow or pressure operation to prevent damage to filter bags or equipment.  ‌

3. Lubrication and maintenance

Lubrication and maintenance: Regularly check and replenish lubricating oil to ensure the lubrication of mechanical components.  ‌

Filter bag replacement: Replace the filter bag according to its service life, paying attention to the correct position of the sealing ring and no leakage during replacement.  ‌

4. Safety regulations

Power off operation: During maintenance, the power must be turned off and residual liquid must be drained to prevent electric shock or liquid spray injury.  ‌

• Protective measures: Wear protective equipment to avoid direct contact with toxic substances.  ‌

5. Periodic maintenance

Deep cleaning: Clean the surface impurities of the filter bag monthly and check the wear of the sealing ring quarterly.  ‌

Professional maintenance: Every year, professional personnel maintain the mechanical components of the equipment and optimize parameters such as dust cleaning frequency.  ‌