| 引用本文格式: Jiang Yi-Kang,Li Hai-Ying,Xu You-Wei,He Peng-Li,Chu Lei-Lei. Mechanism analysis of agglomerating agents in sintering flue gas dust removal by cloud-air-purifying technology [J]. J. At. Mol. Phys., 2026, 43: 042004 (in Chinese) [姜亦康,李海英,徐有伟,贺澎丽,初磊磊. 烧结烟气粉尘云式除尘中团聚剂机理分析 [J]. 原子与分子物理学报, 2026, 43(4): 042004] |
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| 烧结烟气粉尘云式除尘中团聚剂机理分析 |
| Mechanism analysis of agglomerating agents in sintering flue gas dust removal by cloud-air-purifying technology |
| 摘要点击 561 全文点击 263 投稿时间：2025-03-15 修订日期：2025-04-05 |
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| DOI编号
10.19855/j.1000-0364.2026.042004 |
| 中文关键词
烧结烟气粉尘 云式除尘 团聚剂 模拟 |
| 英文关键词
Sintering flue gas dust Cloud-air-purifying Agglomerating agent simulation |
| 基金项目
河北省自然科学基金(E2022209138)河北省自然科学基金(E2022209138) |
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| 中文摘要
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| 为了探究钢铁厂烧结过程中采用团聚剂时云式除尘器对的颗粒物的去除机理，采用云式除尘实验、分子动力学模拟的方法，选取阳离子表面活性剂十二烷基苯磺酸钠（SDBS）、阴离子表面活性剂十六烷基三甲基溴化铵（CTAB）、非离子表面活性剂吐温20（T20）和高分子化合物黄原胶（XTG），通过实验选择最优的表面活性剂与黄原胶耦合，使用分子动力学计算了粉尘-团聚剂-水体系体系的相互作用能、相对浓度分布和水的均方位移. 结果表明：在云式除尘实验中SDBS的团聚效果最好，将SDBS与黄原胶耦合可以进一步提高去除效率. 团聚剂通过打破水分子的常规分布降低水的表面张力，使水膜在粉尘表面迅速铺展，同时扩大水膜宽度，有助于粉尘的碰撞团聚. 模拟结果与实验吻合.为云式除尘器在烧结烟气除尘中选择团聚剂提供了一定的依据，丰富了烧结矿粉尘分子动力学研究方法. |
| 英文摘要
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| To investigate the removal mechanism of particulates in a cloud-air-purifying technology when using agglomerating agents during the sintering process in steel plants, a combination of experimental and molecular dynamics simulation methods was employed. Cationic surfactant sodium dodecylbenzene sulfonate (SDBS), anionic surfactant cetyltrimethylammonium bromide (CTAB), nonionic surfactant Tween 20 (T20), and polymer xanthan gum (XTG) were selected. Through experiments, the optimal combination of surfactant and xanthan gum was determined, and molecular dynamics simulations were conducted to analyze the Interaction Energy, relative concentration distribution, and mean square displacement of water in the dust-agglomerating agent-water system. The results showed that SDBS exhibited the best agglomeration performance in cloud-air-purifying technology experiments, and coupling SDBS with xanthan gum further enhanced dust removal efficiency. Agglomerating agents disrupted the conventional water molecular distribution, reducing surface tension and facilitating rapid spreading of the water film on dust surfaces. This process expanded the water film width, promoting dust collision and agglomeration. The simulation results were consistent with experimental findings, providing a theoretical basis for selecting agglomerating agents in sintering flue gas dust removal and enriching the application of molecular dynamics in sintering dust studies. |
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