Methods to Solve Clogging of Acid and Alkali Resistant Filter Bags

Acid and alkali resistant filter bags refer to a type of filter bags that can operate normally even when immersed in acidic solutions or alkaline water. Common materials include PTFE, P84, Metas, etc., chosen according to specific working conditions. However, due to various reasons, filter bags may experience clogging during use.

Generally, to solve the clogging issue with acid and alkali resistant filter bags, the following points can be considered:

1.Avoid improper startup procedures, such as starting up the dust collector when the resistance is too high. Running the dust collector below the dew point can lead to problems. Uneven distribution of inlet air can cause localized corrosion of the dust collector housing. If low-temperature startup cannot be avoided, insulation devices such as steam insulation or electric heating should be used.

2.Using membrane-coated filter materials, coated filter materials, or pre-coating treatments on the surface of acid and alkali resistant filter bags is an effective method. For dust with high viscosity, reducing the filtering air velocity, increasing the pressure of pulse blowing, or using offline pulse cleaning of filter bags can be effective. However, the best method is to increase the filtering area, reduce the filtering air velocity, and extend the service life of filter bags.

3.Excessive cleaning time can wash away the initial dust layer on the surface of acid and alkali resistant filter bags, leading to a decrease in filtering accuracy. When the cleaning time is too short, the dust on the surface of the filter bag has not been completely removed, and filtering begins immediately, causing dust to gradually accumulate on the surface of the filter bag, leading to clogging. This can be adjusted by several trial runs and adjusting the pulse controller.

The above points provide some insights into acid and alkali resistant filter bags. If you have further questions, feel free to contact Shanghai Sffiltech Co.,Ltd Consulting. Shanghai Sffiltech Co.,Ltd is a professional manufacturer of Metas needle felt filter bags. Our products undergo optimized processes to enhance various physical and chemical properties, ensuring safer applications. Sffiltech also produces various models using scientifically validated materials for effective filtration with high precision and competitive prices, making it an ideal choice for you.