Bag filter is an efficient dust removal equipment for controlling atmospheric pollution, and it has also been a "sharp tool" in environmental governance in China in recent years.

The bag filter can separate pollutants such as dust in the gas through filtering materials. When dust passes through the filter, it is screened and adhered due to the filtering effect of the filter, and is captured by the filter due to inertia and static electricity. With the continuous use of dust collectors, the accumulation of dust on the surface of the filter screen thickens, resulting in smaller and smaller pores, which can capture finer dust, enabling the dust collector to have better dust removal effect and share the burden of waste gas treatment.

Dust collectors play an important role in purifying air and have also attracted new development opportunities due to environmental concerns.

According to data statistics, the output value of bag filters in China was only 1.77 billion yuan in 2000, and then bag filters continued to progress and develop. By 2013, the total output value of the bag filter industry had reached 14.085 billion yuan, and its market share was also increasing.

Future prospects for the bag filter industry

At present, China's environmental protection situation is still severe, and corresponding emission indicators are constantly tightening; Further limiting the emission of smoke and dust is clearly an important component of environmental protection policies.

At the same time, the latest report released by the China Bag Filter Commission shows that the current application of bag filters in China is 95% for steel, 70% for cement, 90% for aluminum, 70% for non-ferrous metals, 95% for garbage incineration, and 10% for thermal power plants; The application of bag filters in industries such as cement, steel, non-ferrous metals, electricity, machinery, chemical engineering, and municipal administration is constantly expanding.

Coincidentally, in order to meet the requirements of the "Air Pollutant Emission Standards for the Cement Industry" starting from July 1st this year, a large number of environmental protection facilities in cement factories need to be upgraded and renovated. According to calculations, the cement industry has invested 10 billion yuan in renovation costs to implement the new standards, with an annual increase of 5.4 billion yuan in operating costs; Analysis shows that the dust collectors and related products used in industrial departments to reduce smoke and dust emissions have broad development prospects, and the bag dust removal industry will usher in great development opportunities.

The bag filter has a history of over a hundred years, and its main advantage is its high dust removal efficiency, with an emission concentration of up to 10mg/m ³ The classification efficiency is also very high for below2.5 μm Fine particles also have good capture efficiency. With the development and revision of international pollution control standards becoming increasingly strict, the future development of the bag filter industry is foreseeable.