Something You Need to Know about Bag Filter in Cement Plant

Bag filter in cement plant is a common air purification equipment, mainly consisting of a dust collector and filter bags in cement plant. Among them, the filter bags in cement plant are the critical components responsible for filtration. Therefore, proper use and maintenance of the filter bags can extend the service life of the bag filter and improve its dust removal efficiency. This article will provide a detailed introduction to the use and precautions of filter bags in bag filters.

Classification of Filter Bag in Cement Plant

According to different filter materials, bag filter in cement plant can be classified into the following categories: synthetic fiber filter bags, glass fiber filter bags, wire skeleton filter bags, etc. Among them, synthetic fiber filter bags are the most commonly used, offering excellent filtration efficiency and low resistance. They are suitable for dust filtration in various working conditions.

Use of Bag Filter in Cement Plant

Installation of Filter Bags in Cement Plant: The installation of filter bags should comply with the design drawings and specifications, ensuring proper sealing and secure fixation.

Pre-start Inspection: Before starting the bag filter, a thorough inspection must be conducted, including checking for any damages to the filter bags, ensuring normal compressed air supply, verifying tight connections of the fan, and checking the proper functioning of the switch control circuit.

Attention During Operation: During operation, the condition and changes in resistance of the filter bags in cement plant should be continuously monitored, and timely cleaning of the filter bags should be performed. If any filter bags are found to be damaged or blocked, they need to be promptly replaced or cleaned.

Maintenance of Bag Filter in Cement Plant

Regular Cleaning: The filter bags in bag filters need regular cleaning to ensure their filtration performance. Special tools should be used for cleaning, and it is strictly prohibited to scrape the surface of the filter bags with hard objects.

Maintenance Attention: Extra attention should be given to the maintenance of filter bags during daily use to avoid filter bag damage or failure due to dust accumulation.

Post-Shutdown Maintenance: After shutdown, the fan should be immediately turned off to prevent air from entering the filter bags. Before opening the inspection door, a certain waiting time should be allowed for the residual dust to settle to prevent harm to the operators.

Replacement of Bag Filter in Cement Plant

The lifespan of filter bags is influenced by various factors, such as operating environment, dust characteristics, operating conditions, etc. The replacement time of filter bags is typically determined by monitoring the pressure difference across the filter bags. If the pressure difference exceeds the set value, it indicates that a significant amount of dust has accumulated, and the filter bags need to be replaced. Generally, if the equipment operates stably, filter bags can be used for several months to several years.

It should be noted that different types of filter bags in cement plant have different replacement cycles, which need to be adjusted based on specific usage conditions. Additionally, regular cleaning and maintenance of filter bags can also extend their service life.