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With Bag Dust technology and the increasing requirements of environmental protection, the application of bag filter more extensive use of bag filters are now able to handle high temperatures, high humidity, bonding, explosion, erosion of smoke, and even filter the air with fine dust. 1, high temperature, high humidity gas, industrial kilns, dryers and so on are all high-temperature flue gas, most of which also contains a lot of water and sulfur oxide gases. Bag filter can currently handle flue gas temperature below 300 , over the temperature of the gas pre-cooling treatment should, in exceptional circumstances, use metal fiber filter to deal directly with 450 ~ 550 high temperature flue gas. Steam boiler with a bag filter processing, cement kiln, metallurgy furnaces, incinerators and other high-temperature furnace of smoke, at home and abroad is becoming increasingly popular. Although the temperature filter bag filter performance by its restrictions, but through the proper flue gas treatment system has been able to handle temperatures as high as 1200 ~ 1400 high temperature flue gas. 2, adhesion of dust adhesion to the surface of dust in the bag easy to harden, bag filter can be handled by adsorption bond of dust, that is, the system pipes and porous powder mixed with appropriate use of adsorption bond powder to dust, then from the bag filter for purification. Fire-resistant plants such as adsorption with dolomite powder purification asphalt fumes, asphalt and aluminum oxide with alumina adsorption of hydrogen, the road company of limestone powder with asphalt concrete plant asphalt smoke adsorption, the adsorption efficiency of up to 92 ~ 99%. 3, explosive dust explosive dust must have the following three conditions will occur when the explosion: appropriate concentration of flammable substances in the flue gas exists; sufficient oxygen and oxidants; a fire source. Therefore purification of such gases should be taken to destroy these three conditions occur or a condition measures. Simply is the control element, the eradication of fire; eliminate static electricity, equipment grounding; monitoring explosion, fire vent. 4, corrosive gas in the flue gas purification systems, bag filter has a corrosive effect on the main gas and dust in two media, such as coal, heavy oil fuel elements due to the presence of sulfur in the formation of sulfuric acid gas, or water will produce a variety of salts of dust. Because corrosion of flue gas purification are in the flue gas temperature below the dew point in the case of acid occurs, this gas should ensure that the system is running at more than dew point temperature. In the filter choice, corrosive substances should be the characteristics of smoke, using the appropriate filter media, the corrosion serious and demanding purification systems, such as pharmaceutical, food, carbon black production industry, bag filter important parts should be stainless steel or anticorrosive paint brush handle. 5, ground pecking dust in the processing of alumina, silica, sinter, such as grinding pecking dust, because dust in the coarse particles and air in the bag filter in the velocity is too high, resulting from a dust bag and produce a strong shell wear, this generally should reduce the flue gas in the absolute number of coarse particles of dust and dust-laden gas flow rate of 2 lower take appropriate measures, such as in the flue gas into the bag filter before the pre-set dust removal device, strictly control the bag inlet velocity, air flow increases the entrance easy to wear office wear-resistant materials. I am an expert from coredrillingrig.com, while we provides the quality product, such as core driller Manufacturer , China core driller, water drilling equipment,and more.
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