| 王福生,沈红成,吕正雄,赵 军,李 傲.SNCR精准脱硝技术在水泥生产中的实践应用[J].水泥工程,2024,37(1):23-25 |
| SNCR精准脱硝技术在水泥生产中的实践应用 |
| The practical application of SNCR precise denitrification technology in cement production |
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| DOI： |
| 中文关键词: SNCR,精准脱硝,水泥窑,环保排放 |
| 英文关键词: SNCR,accurate denitrification,cement kiln,environmental emissions |
| 基金项目: |
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| 中文摘要: |
| LHK公司在今年节能降碳改造后，熟料产量上升，NOx排放本体浓度增大，而原有脱硝系统使用时间久，设备老化，喷枪位置少，覆盖面小等，在满足NOx环保排放指标达到100 mg/m3以下时，吨熟料氨水用量在3.1 kg/t左右，经过SNCR精准脱硝改造后，进行多层多点布置氨水喷枪位置，精确计量每组喷枪的氨水流量和压缩空气量，动态调节喷枪的雾化效果，控制烟囱NOx排放（标况下）低于100 mg/m3，吨熟料氨水用量降至2.14 kg/t，氨水用量节约了30.96%。 |
| 英文摘要: |
| After the energy-saving and carbon reduction renovation of LHK Company this year, the production of clinker has increased, and the concentration of NOx emissions has increased. However, the original denitrification system has been used for a long time, the equipment is aging, the spray gun positions are few, and the coverage is small. When the NOx environmental emission index reaches below 100 mg/m3, the amount of ammonia water per ton of clinker is about 3.1 kg/t. After the SNCR precise denitrification renovation, the ammonia water spray gun positions are arranged in multiple layers and points, Accurately measuring the ammonia flow rate and compressed air volume of each spray gun, dynamically adjusting the atomization effect of the spray gun, controlling the chimney NOx emission （under standard conditions） to be less than 100 mg/m3, reducing the ammonia consumption per ton of clinker to 2.14 kg/t, and saving 30.96% of ammonia consumption. |
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