Coal-fired enterprise baghouse filter PM2.5

Xi'an News - Xi'an Evening News, a boxy metal box, known as the "baghouse" filter out the vast majority of the coal-fired boiler of PM2.5. Yesterday, the city held to promote the site will promote and encourage coal enterprises to use the bag dust removal technology. filter media

Yesterday, the comprehensive management of the coal-fired boiler flue gas to promote the site will be held in the western suburbs of Xi'an Thermal associated plant. The person in charge of the plant surnamed Zhang told reporters, pointing to a blue boiler compartment, suspended vertically in the blue metal box with more than 10 cloth bags, when the smoke through the fan into the boiler chamber , cloth bags layer-by-layer filter, dust blocked out, purify the air through the open bag discharge port to 80 mg per cubic meter compared to the general coal-fired boiler exhaust soot, bag dust removal technology dust concentration is reduced to less than 30 mg. "The whole process there is no pollution, very environmentally friendly." The official said. filter bag

It is understood that the "bag" low emission concentration of dust removal technology, energy consumption for electricity, cement, metallurgy, chemical industry, when the cloth reaches the end, just want to change a number of "bag" can generally use 3 years.

According to statistics, the coal-fired pollution is one of the city's three major sources of pollution, accounting for about 20% to 25% of the city's PM2.5. In addition to The garrison unit coal-fired boiler being further Mopai the outside, the city's various types of coal-fired boilers a total of 820, produced by burning coal, sulfur dioxide, nitrogen oxides, soot emissions total of nearly 200,000 tons. This year the city will invest nearly 50 billion yuan, removal of the 450 sets of 20 tons of steam boilers. Coal enterprises to promote the baghouse will be retained, in order to reduce emissions as much as possible.