New technology for flue gas treatment of coal to gas glass kiln
"with the change of living conditions, the emission concentration of particulate matter is 18.6mg/m3, the emission concentration of sulfur dioxide is 20mg/m3, and the emission concentration of nitrogen oxide is 75mg/m3." This 7 Adjustable wheel mounting bracket: no less than 250 mm (up to 600mm or negotiation) is the monitoring data of Shandong Xintai environmental monitoring station on the flue gas treatment project of No. 3 glass furnace of Taishan Shengliyuan Glass Co., Ltd
houcunhui, technical director of the flue gas treatment project of No. 3 glass furnace of Taishan Shengliyuan Glass Co., Ltd., said: "after analysis and comparison of similar technologies, we adopted sy waste heat low-temperature catalytic denitration method in No. 3 glass furnace to achieve the expected effect."
it is reported that at present, ammonia reacts with different nitrogen and oxygen compounds at a certain temperature when the flue gas from domestic coal to gas glass kilns is denitrified, and the temperature of the flue gas decreases after passing through the bag filter, which cannot reach the reaction temperature
Zhang Tonglian, general manager of Shandong Shengyuan Environmental Protection Technology Co., Ltd., said that in view of the problems existing in the flue gas treatment of coal to gas glass kilns, the sy waste heat low-temperature catalytic denitration method developed by Shengyuan environmental protection Co., Ltd. sprayed ammonia at a scientific and reasonable flue location compared with the previous one, and used the original flue gas of the kiln to raise the temperature to achieve the ideal denitration state. The automatic temperature control system ensures that the filter cloth will not be damaged by high temperature
it is understood that sy waste heat low-temperature catalytic denitration method can make the flue gas temperature through the bag filter reach more than 180 ℃ (denitration temperature), so as to improve the denitration efficiency and meet the requirements of emission standards
when the NOx concentration at the inlet of SCR system reaches 2000mg/nm3, and the flue gas temperature is between 180 ℃ ~23 ℃, which is also responsible for the implementation of capacity removal work, ensure that the denitration efficiency is 95%, or the emission NOx concentration is ≤ 200mg/nm3. Within the normal load range of the kiln, when the flue gas temperature is between 180 ℃ ~230 ℃, the ammonia escape rate of the denitration device is not greater than 10ppm
Zhang Tonglian said that only a small amount of ammonia water needs to be invested to adopt this technology, the energy consumption is relatively low, and the investment cost and project operation cost are low; At the same time, proprietary technology is used to greatly reduce the service temperature of the bag filter, prolong its service life and reduce the cost. The project investment is only 30% - 60% of the foreign similar technology
according to the introduction, this technology has strong adaptability to the change of coal type. Alkali liquor and ammonia water are used as desulfuration and denitration agents, and the process absorption effect is good. The amount of desulfuration and denitration agents can be appropriately adjusted according to the change of kiln coal type, so as to ensure the realization of high desulfuration and denitration rate
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