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A platform for research: civil engineering, architecture and urbanism
Cement clinker production line with precise SNCR denitration position, and denitration method
The invention discloses a cement clinker production line with a precise SNCR denitration position, and a denitration method. The cement clinker production line comprises a decomposing furnace, a combustor, a rotary kiln and a five-stage cyclone cylinder system, and further comprises a plurality of ammonia spraying guns, wherein the ammonia spraying guns are arranged in the fifth-stage cyclone cylinder body and the fourth-stage cyclone cylinder body correspondingly, located at the upper ends of the cylinder cone portions and evenly distributed along the circumference of the cylinder cone portions, and the insertion angle and the insertion depth of the ammonia spraying gun can be adjusted. According to the invention, the temperature window of the position meets the reaction requirement of ammonia water and nitric oxide, the reaction time is long (1.0 to 3.0 seconds), the dust concentration is low (within 100 g/Nm<3>), the reaction efficiency of ammonia water and nitrogen oxide is high, the ammonia water utilization rate is high, the efficient and precise denitration function is achieved, the ammonia escape amount is lower than a safe and environment-friendly limit value, the pollution of nitrogen oxide to the environment is reduced, and the clean production level of the cement industry is easily further improved.
本发明公开了一种具有精准SNCR脱硝位置的水泥熟料生产线和脱硝方法，该水泥熟料生产线包括分解炉、燃烧器，回转窑和五级旋风筒系统；水泥熟料生产线还包括多个喷氨枪，多个喷氨枪分别设置在五级旋风筒本体和四级旋风筒本体中且位于筒锥部的上端并沿筒锥部圆周均布；喷氨枪的插入角度及深度能够调节。本发明位置的温度窗口满足氨水与氮氧化物反应要求，且反应时间较长(1.0～3.0s)，粉尘浓度低(100g/Nm以内)，氨水与氮氧化物反应效率高，氨水利用率高，实现高效精准脱硝功能，且保证氨逃逸量低于安全环保限制值，减少氮氧化物对环境的污染，有助于进一步提升水泥行业的清洁生产水平。
Cement clinker production line with precise SNCR denitration position, and denitration method
The invention discloses a cement clinker production line with a precise SNCR denitration position, and a denitration method. The cement clinker production line comprises a decomposing furnace, a combustor, a rotary kiln and a five-stage cyclone cylinder system, and further comprises a plurality of ammonia spraying guns, wherein the ammonia spraying guns are arranged in the fifth-stage cyclone cylinder body and the fourth-stage cyclone cylinder body correspondingly, located at the upper ends of the cylinder cone portions and evenly distributed along the circumference of the cylinder cone portions, and the insertion angle and the insertion depth of the ammonia spraying gun can be adjusted. According to the invention, the temperature window of the position meets the reaction requirement of ammonia water and nitric oxide, the reaction time is long (1.0 to 3.0 seconds), the dust concentration is low (within 100 g/Nm<3>), the reaction efficiency of ammonia water and nitrogen oxide is high, the ammonia water utilization rate is high, the efficient and precise denitration function is achieved, the ammonia escape amount is lower than a safe and environment-friendly limit value, the pollution of nitrogen oxide to the environment is reduced, and the clean production level of the cement industry is easily further improved.
本发明公开了一种具有精准SNCR脱硝位置的水泥熟料生产线和脱硝方法，该水泥熟料生产线包括分解炉、燃烧器，回转窑和五级旋风筒系统；水泥熟料生产线还包括多个喷氨枪，多个喷氨枪分别设置在五级旋风筒本体和四级旋风筒本体中且位于筒锥部的上端并沿筒锥部圆周均布；喷氨枪的插入角度及深度能够调节。本发明位置的温度窗口满足氨水与氮氧化物反应要求，且反应时间较长(1.0～3.0s)，粉尘浓度低(100g/Nm以内)，氨水与氮氧化物反应效率高，氨水利用率高，实现高效精准脱硝功能，且保证氨逃逸量低于安全环保限制值，减少氮氧化物对环境的污染，有助于进一步提升水泥行业的清洁生产水平。
Cement clinker production line with precise SNCR denitration position, and denitration method
具有精准SNCR脱硝位置的水泥熟料生产线和脱硝方法
LI ZHIQIANG (author) / ZHANG ZONGJIAN (author) / KONG QUHE (author) / ZHANG SIFU (author) / XUAN HONGZHONG (author) / ZHANG TITI (author) / WANG BIN (author) / ZONG QINGSONG (author) / ZHANG DONGSHENG (author) / FAN JINGWEI (author)
2020-04-10
Patent
Electronic Resource
Chinese
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