中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (11): 93-99.doi: 10.16265/j.cnki.issn 1003-3033.2021.11.013

• 安全工程技术 • 上一篇    下一篇

胶带运输巷粉尘运移及气动喷雾降尘技术*

荆德吉1,2 副教授, 魏德宁**1,2,3 高级工程师, 马明星1,2, 张天1,2, 孟祥曦1,2, 任帅帅1,2   

  1. 1 辽宁工程技术大学 安全科学与工程学院,辽宁 阜新 123000;
    2 辽宁工程技术大学 矿山热动力灾害与防治教育部重点实验室,辽宁 阜新 123000;
    3 阜新市应急管理局,辽宁 阜新 123000
  • 收稿日期:2021-08-12 修回日期:2021-10-10 出版日期:2021-11-28 发布日期:2022-03-17
  • 通讯作者: ** 魏德宁(1981—),男,辽宁阜新人,博士研究生,高级工程师,研究方向为通风除尘应用及非煤矿山安全生产监管。E-mail:99338787@qq.com。
  • 作者简介:荆德吉 (1984—),男,辽宁抚顺人,博士,副教授,博士生导师,主要从事粉尘综合治理技术研究。E-mail:jingdeji@sina.com。
  • 基金资助:
    国家自然科学基金青年基金资助(51704146);辽宁省自然科学基金面上计划项目(2020-MS-304)。

Study on dust movement in belt transportation roadway and pneumatic spray dust control technology

JING Deji1,2, WEI Dening1,2,3, MA Mingxing1,2, ZHANG Tian1,2, MENG Xiangxi1,2, REN Shuaishuai1,2   

  1. 1 College of Safety Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000,China;
    2 Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education, Liaoning Technical University, Fuxin Liaoning 123000, China;
    3 Fuxin Emergency Management Bureau, Fuxin Liaoning 123000, China
  • Received:2021-08-12 Revised:2021-10-10 Online:2021-11-28 Published:2022-03-17

摘要: 为解决矿井胶带运输巷粉尘质量浓度超标问题,设计一种新型节能气动喷雾降尘方案。在3 m/s 通风条件下,采用数值模拟方法研究胶带运输巷粉尘运移情况,模拟粉尘从导料槽喷出至污染整个胶带运输巷的过程和粉尘速度的空间分布;提出同时治理导料槽和胶带运输巷内的中心抑制、两侧隔断综合喷雾降尘方案;在导料槽两端布置安装6个新型节能气动雾化喷嘴,胶带运输巷布置4道由高效节能气动雾化喷嘴组成的雾幕。结果表明:该方案可有效降低导料槽粉尘涌出量,并对胶带运输巷中的粉尘起到捕集和隔断扩散作用;可有效将粉尘控制在转载点两侧20 m空间范围内,除尘效率达94.1%。

关键词: 胶带运输巷, 粉尘运移, 气动喷雾, 数值模拟, 导料槽

Abstract: In order to address the problem of excessive dust concentration in mine belt transportation roadway, a new type of energy-saving pneumatic spray dust reduction program was designed. Dust migration in the roadway under 3m/s ventilation condition was studied by using numerical simulation method, and process of dust spraying from guide chute to polluting the entire roadway as well as spatial distribution of dust velocity were simulated. Then, a comprehensive spray dust reduction program of “central inhibition, bilateral partition" was proposed for simultaneous control of guide chute and roadway. Finally, 6 new energy-saving pneumatic spray nozzles were installed at both sides of guide chute, and 4 fog screens, formed by the nozzles, were arranged in belt transportation roadway. The results show that the proposed design can effectively reduce amount of dust from guide chute, and it has a very obvious effect on dust collection and isolation. This solution effectively controls the dust within 20m of space on both sides of transshipment point, with a dust removal efficiency of 94.1%.

Key words: belt transportation roadway, dust migration, pneumatic spray, numerical simulation, guide chute

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