Bag filter is a common industrial dust removal equipment, which is widely used in dust control generated in various industrial production processes. Its working principle is mainly to separate the dust from the gas through bag filtration, so as to achieve the purpose of purifying the air.
First, the working principle.
The working principle of the bag filter can be divided into the following steps:
1.The dust-containing gas enters the bag filter, and the dust is trapped on the surface of the filter bag through the filtration action of the filter bag. The purified gas enters the upper clean air chamber through the filter bag and is discharged through the exhaust pipe.
2.Over time, the dust on the surface of the filter bag increases, causing the filter bag resistance to rise. When the resistance reaches a certain value, it needs to be cleaned.
3.During ash cleaning, the pulse injection system is activated by the control device to spray the filter bag. The jet air stream quickly blows the dust off the surface of the filter bag and falls into the ash hopper.
4.After cleaning, the dust on the surface of the filter bag is removed and the resistance returns to a lower level. At the same time, the dust falling into the ash hopper can be discharged through the ash discharge mechanism to realize the collection and improvement of the dust.
Second, the work process.
The workflow of the bag filter can be divided into the following links:
1.Dust capture: The dust-containing gas is filtered through the filter bag, and the dust is trapped on the surface of the filter bag, and the purified gas is discharged.
2.Cleaning treatment: Over time, the dust on the surface of the filter bag increases, and cleaning treatment is required. During ash cleaning, the filter bag is sprayed by a pulse injection system to blow the dust off and collect it.
3.Dust collection: The dust that falls into the ash hopper can be discharged through the ash discharge mechanism, and can be processed after a certain amount is collected.
4.Monitoring and maintenance: The operating status of the dust collector is monitored through the control system, and the abnormal situation is alarmed and handled. At the same time, the dust collector is regularly inspected and maintained to ensure its normal operation and service life.
3. Scope of application.
Bag filters are widely used in dust control generated in various industrial production processes, such as flue gas dust removal in cement, steel, non-ferrous metals, chemical industry, electric power and other industries. Its advantages include efficient dust removal, low energy consumption, low maintenance costs, flexibility, etc. In practical applications, according to different processes and dust properties, different types of bag filters and suitable filter materials can be selected to achieve the best dust removal effect.
Fourth, the development trend.
With the continuous improvement of environmental protection requirements and the continuous upgrading of industrial production, the bag filter is also developing and improving. In the future, the development trend of bag filter mainly includes the following aspects:
1.Improve filtration efficiency: Adopt more advanced filter materials and technologies to improve the filtration efficiency of the bag filter and further reduce the emission concentration.
2.Reduce energy consumption: Optimize the structure and design of the bag filter, reduce its operating energy consumption, and improve energy efficiency.
3.Intelligent control: Sensors and intelligent control technology are used to monitor and automatically adjust the operating status of the bag filter in real time to improve its automation and intelligence level.
4.Environmentally-friendly design: while ensuring the effect of dust removal, we pay attention to environmental protection and resource conservation, and adopt high-quality materials and green manufacturing technology.