[China Glass Network] The production technology of PM and NOX emissions is very mature in the production line using natural gas and coal gas as fuel. For companies that use petroleum coke and heavy oil as fuel, their PM and NOX emission reduction technologies have yet to be further matured. The entire desulfurization and dedusting system accounts for about 2% to 4% of the total infrastructure investment of the whole plant. The average desulfurization and dust removal system of each production line is 4 million to 5 million yuan, and the annual operating cost is more than 2 million yuan. After increasing the denitrification, it is necessary to increase the investment and operating costs by more than one time. Since January 1, 2014, the existing flat glass manufacturers have implemented the "flat glass industry air pollutant discharge standards" (GB26453-2011) (hereinafter referred to as "standards"). Recently, the reporter went to Zhengzhou, Henan, Langfang, Hebei, and Yulin, Shaanxi Province to inspect the prevention and control of atmospheric pollution. Many reporters still have excessive emissions. Some flat glass companies report that due to the immature processing technology, standard emission requirements cannot be met. At present, why are some enterprises failing to meet the standards, and is there any suspicion that the Standards are “too high?†Can the mainstream technologies commonly used in China meet the requirements of the Standard? To this end, the reporter interviewed relevant enterprises and experts. The flat glass denitration and dust removal technology combination is exquisite. The denitration device is arranged after the high temperature dust collector, and needs to be denitrated after cooling. According to reports, the core technology of dust reduction and NOX removal in flat glass enterprises is high temperature electric dust removal and selective catalytic reduction. (SCR) denitration technology. At present, SCR technology is mainly used in power plant flue gas denitrification. Due to the particularity of glass furnace flue gas, the flat glass industry has special needs for SCR denitration technology. Experts said that the glass furnace flue gas contains a large amount of dust, ranging from 200mg/m3 to 280mg/m3, and the dust particle size is small. The dust contains alkali metals and alkaline earth metals which may cause catalyst poisoning, which may easily cause clogging of the catalyst pores. At the same time, Na2SO4 should be added as a clarifying agent in the glass production process, which accounts for about 5% of the total amount of flat glass. The dust in the flue gas contains Na2SO4 particles, which are soluble in water and produce sodium ions, which easily cause poisoning of the catalyst. Therefore, it is considered that after the denitration device is disposed in the high-temperature dust remover, most of the dust is removed and then denitration is performed. At present, the domestic glass melting furnace exhaust gas temperature is 420 ° C ~ 450 ° C, and the appropriate temperature of the SCR denitration catalyst is 300 ° C ~ 380 ° C, the flue temperature exceeds the high efficiency of the conventional catalyst, the temperature needs to be denitrified after cooling. Knit Light Fabric, soft with stretch, single jersey, or interlock , pique, mesh, bird-eye, fabric can be solid dyed, yarn dye, printed, jacquard, melange effect, CD yarn designs, fabric composition can be cotton , poly cotton, polyester, cotton rich; CD yarn designs . The fabric mainly for the T shirts, golfer , good for sport wear. Birdseye Fabric,Birdeye Knit Polyester Fabric,Birdeye Knit Mesh Fabric,Knit Birdeye Fabric Shaoxing Harbour Textile&Garments Co., Ltd , https://www.sxharbour.com