Precipitator filter bag plays a major role in dust collection and flue gas treatment. Different precipitator filter bags are used in different production processes. Choosing the right precipitator filter bag dust removal method can not only effectively collect dust, but also purify dust. Flue gas can also save users investment and maintenance costs. Below we understand the scope of application of filter bags of various types of dust collectors.
(1) Cyclone dust collector
Cyclone dust collector is relatively low cost, convenient maintenance and management, high temperature and humidity resistance to smoke, corrosion-resistant gases. However, the removal rate of dust particles with a particle size below 10um is relatively low. When the gas dust concentration is high, this type of dust remover can be used as a primary dust removal to reduce the load of secondary dust removal.
(2) bag filter
Bag filter is mainly bag filter. Bag filter dust removal efficiency, can remove fine dust particles. The adaptability to changes in the amount of treated gas is best suited to the treatment of fine particulate matter that has a recovery value. However, the investment of the bag filter is relatively high. The allowable temperature is low, and the temperature of the gas during operation needs to be higher than the dew point temperature. Otherwise, not only will the resistance of the filter be increased, but even the wet dust adheres to the surface of the filter bag. The dust collector does not work properly. Dust collectors cannot be used when the dust concentration exceeds the lower explosion limit of dust particles.
(3) Wet dust collector
The wet dust collector has a simple structure, low investment, high dust removal efficiency, and can remove small particle dust. And can remove some harmful gases at the same time. The disadvantage of wet scrubbers is that the amount of water used is relatively large. Mud and waste water need to be treated and the equipment is susceptible to corrosion. Cold areas should pay attention to antifreeze. Wet dust collector Add desulfurizer in the water tank can be used as desulfurization dust collector.
(4) Electrostatic precipitator
Electrostatic precipitators have high dust removal efficiency, low pressure loss, and low operating costs. However, electrostatic precipitators have a large investment in equipment, complex equipment, and a large area. They have strict requirements for operation, operation, and maintenance management. At the same time, there is also a requirement for the resistance ratio of dust. At present, electrostatic precipitators are mainly used for large enterprises with large gas volumes, strict requirements on emission concentration, and certain maintenance and management levels, such as power plants, building materials, and metallurgical industries.