• At present, China is in the stage of rapidly advancing industrialization and urbanization, and the development of natural resources is increasing, resulting in large-scale ecological damage and increasingly serious environmental pollution. Under the normal role of the new economy, environmental protection has also entered a development. If the economy and the environmental protection road are in a balanced state, it is particularly important to use bag dust removal technology to reduce the pollution caused by power generation.

• Since the country denied the use of high chimney emissions, the dust removal efficiency of electrostatic precipitator was significantly reduced after the plant used low-sulfur coal as fuel. Although electrostatic precipitator technology has made a lot of technical improvements in the design of the body and power supply to improve the dust removal efficiency, it has received certain effects, or adopts the method of flue gas quenching and tempering to improve the dust removal efficiency, but in order to achieve the same dust removal efficiency, it is satisfied. Environmental protection emission standards, investment has been greatly improved, and after comprehensive economic and technical comparison, bag filter is the most advantageous and economical.

• For some special coal ash, electrostatic dust removal can not be adapted. With the technology of dry desulfurization and the application of circulating fluidized bed in power station boilers, corresponding dust removal equipment is needed to cooperate.

• Although the bag filter has developed rapidly on the power station boiler, it has also had a rough history, especially in China. In the 1980s and 1990s, the bag filters used on the power station twice were short-lived due to short bag life, high clogging or burning, and even failed due to the impact on the safe operation of the group, thus making the bag filter in the power station boiler. The application has been limited. At the same time, bag filter has been widely used in other industries in China. With the continuous development of technology and the continuous improvement of environmental standards, the application of bag filter on power station boilers The more widely it comes.

• According to the calculation of the State Environmental Protection Administration, the damage caused by China's environmental problems accounts for about 10% of the gross national product. The pollution problem is already very serious, so the environmental protection requirements are becoming more and more strict. The country has put more strict restrictions on the emission of soot and sulfur dioxide. Claim. In order to reduce the emission of sulfur dioxide, many power plants will burn low-sulfur coal or adopt corresponding desulfurization equipment, which will lead to a decrease in the dust removal efficiency of electrostatic precipitators, especially for power plants with more than 85% silicon and aluminum content in coal. The concentration of soot emissions has far exceeded the requirements of environmental protection. According to the current situation, it is imperative to transform the electrostatic precipitator into a bag filter.

• The overall scale of China's environmental protection industry has expanded rapidly, and the industrial field has been continuously broadened. In the wake of the strategic emerging industries and related policies, China's environmental protection industry has entered the lower development lane of rapid development. However, the number is large and the scale is small. The gaze of low concentration shows that human survival and development must consume energy. The use of electricity consumes fossil energy and has an adverse impact on the environment. However, the use of electric energy is more efficient than direct consumption of fossil fuels, and the energy consumption is relatively reduced. , thus protecting the environment.