| Citation: | ZHAO X L,DU J,XIA S Y,et al.Research and industrial testing of truck road moisturizing dust suppressant for North Open-pit Coal Mine[J].Journal of Environmental Engineering Technology，2024，14（2）：446-454 doi: 10.12153/j.issn.1674-991X.20230355
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Truck road transport is one of the largest sources of dust in open-pit coal mines, especially in the high-temperature environment in summer where road moisture evaporation is extremely high and truck disturbance intensity is extremely high. Taking truck pavement of Horin River North Open-pit Coal Mine as the research background, the stress state and dust production mechanism of NET200 dump truck tire adhesion dust were analyzed; the moisture content, chemical functional groups and particle size distribution of the road soil were collected and tested, and the functional positioning of moisture, wetting and coagulation of the developed dust suppressant was determined. Monomer preference experiments were carried out to determine the humectant glycerol (B), wetting agent sodium dodecylbenzene sulfonate (T) and coagulant polyacrylamide (N) as the orthogonal test materials, with evaporation as the main control index. The range method was used to determine the best formulation of humectant dust suppressant as 3.0% glycerol, 0.25% sodium dodecylbenzene sulfonate and 0.05% polyacrylamide. Through the observation of the dust surface film-forming state and water content changes under different spraying volumes, the best spraying volume was determined to be 1.6-2.0 L/m2 per unit of road surface. The results of the 12 d dust suppression industrial test in North Open-pit Coal Mine showed that the concentrations of total dust and respirable dust in all sections of the single test cycle were gradually increasing, and the concentrations of total dust and repairable dust in the dust suppressant sprayed load-bearing and non-load-bearing sections during the three tests were significantly lower than the corresponding sections of conventional water sprinkling, and they were lower than the specified limits of 4 mg/m3 of total dust and 2 mg/m3 of respirable dust, respectively, indicating that the independently developed moisturizing type dust suppressant spraying effective dust suppression time of single time was 3-4 d. Spraying dust suppressant could effectively increase the proportion of large particles in the dust, and condensation and agglomeration effect was significant. The average water content of the soil in spraying dust suppressant load-bearing and non-load-bearing section was 14% and 12%, respectively, more than 2 times the conventional sprinkling section. The research shows that the moisturizing dust suppressant can significantly extend the effective dust suppression time of a single spraying, and has significant applicability to dynamic working conditions such as mining roads.
| [1] |
袁亮. 煤矿粉尘防控与职业安全健康科学构想[J]. 煤炭学报,2020,45(1):1-7.
YUAN L. Scientific conception of coal mine dust control and occupational safety[J]. Journal of China Coal Society,2020,45(1):1-7.
|
| [2] |
付恩三, 白润才, 刘光伟, 等. “双碳”视角下我国露天煤矿的绿色可持续发展[J]. 科技导报,2022,40(19):25-35.
FU E S, BAI R C, LIU G W, et al. Countermeasures and thinking of green and sustainable development of open-pit coal mines in the future from the perspective of "double carbon"[J]. Science & Technology Review,2022,40(19):25-35.
|
| [3] |
郑向军, 李晋生, 薛峰, 等. 新型环保道路抑尘剂在城市道路的应用[J]. 环境工程技术学报,2014,4(2):169-172.
ZHENG X J, LI J S, XUE F, et al. The applied research of new environment-friendly dust suppressant in city road[J]. Journal of Environmental Engineering Technology,2014,4(2):169-172.
|
| [4] |
NIE W, MA X, CHENG W M, et al. A novel spraying/negative-pressure secondary dust suppression device used in fully mechanized mining face: a case study[J]. Process Safety and Environmental Protection,2016,103:126-135. doi: 10.1016/j.psep.2016.07.003
|
| [5] |
XU C H, WANG D M, WANG H T, et al. Experimental investigation of coal dust wetting ability of anionic surfactants with different structures[J]. Process Safety and Environmental Protection,2019,121:69-76. doi: 10.1016/j.psep.2018.10.010
|
| [6] |
NAEIMI M, CHU J. Comparison of conventional and bio-treated methods as dust suppressants[J]. Environmental Science and Pollution Research,2017,24(29):23341-23350. doi: 10.1007/s11356-017-9889-1
|
| [7] |
金龙哲, 朱吉茂, 任志刚, 等. 露天矿公路防冻抑尘剂的研究[J]. 北京科技大学学报,2004,26(1):4-6.
JIN L Z, ZHU J M, REN Z G, et al. Research on an antifreezing dust depressor used to the road in open-pit mines[J]. Journal of University of Science and Technology Beijing,2004,26(1):4-6.
|
| [8] |
杜翠凤, 崔蒙蒙, 常宝盂, 等. 露天矿路面抑尘剂工业试验及效果分析[C]//中国金属学会2019年冶金安全与健康年会. 北京: 中国金属学会, 2019: 108-118.
|
| [9] |
张平, 李绍臣, 苏金生. 露天矿山汽车运输路面扬尘的防治方法[J]. 露天采煤技术,2000(3):44-46.
|
| [10] |
王和堂, 贺胜, 章琦, 等. 微生物发酵法合成生物抑尘剂的试验研究[J]. 煤炭学报,2021,46(2):477-488.
|
| [11] |
程卫民, 周刚, 陈连军, 等. 我国煤矿粉尘防治理论与技术20年研究进展及展望[J]. 煤炭科学技术,2020,48(2):1-20.
|
| [12] |
赵星光, 谭卓英. 露天矿山运输路面扬尘影响因素及机理分析[J]. 有色金属(矿山部分),2005,57(3):43-45.
ZHAO X G, TAN Z Y. Influencing factors and mechanism analysis of dust on transportation pavement in open-pit mines[J]. Nonferrous Metals (Mine Section),2005,57(3):43-45.
|
| [13] |
刘子亮, 谭卓英, 李华, 等. 司家营铁矿露天运输道路粉尘发生机理及控制[J]. 矿业研究与开发,2021,41(7):93-97.
LIU Z L, TAN Z Y, LI H, et al. Dust occurrence mechanism and its control on open-pit transportation road in Sijiaying Iron mine[J]. Mining Research and Development,2021,41(7):93-97.
|
| [14] |
鲁文岐, 周伟, 丁小华, 等. 露天矿卡车运输起尘时PM2.5和PM10变化规律研究[J]. 中国煤炭,2019,45(11):89-93.
LU W Q, ZHOU W, DING X H, et al. Change law of PM2.5 and PM10 in open-pit coal mine truck transportation[J]. China Coal,2019,45(11):89-93.
|
| [15] |
杜翠凤, 蔡嗣经, 蒋仲安. YCH抑尘剂抑制露天矿路面扬尘的实验研究[J]. 北京科技大学学报,2007,14(增刊2):45-48.
DU C F, CAI S J, JIANG Z A. Experimental study on controlling road dust raising in the open mine with the YCH dust suppressant[J]. Journal of University of Science and Technology Beijing,2007,14(Suppl 2):45-48.
|
| [16] |
韩超, 刘传犇, 于继图, 等. 润湿剂对低阶弱黏煤表面改性的研究[J]. 选煤技术,2021(2):14-18.
HAN C, LIU C B, YU J T, et al. Study on surface modification of low-rank weakly-caking coal with wetting agent[J]. Goal Preparation Technology,2021(2):14-18.
|
| [17] |
邹佳霖. 新型复配润湿剂对煤尘的润湿效果研究[D]. 阜新: 辽宁工程技术大学, 2019.
|
| [18] |
张月帆, 陈建华, 李冬, 等. 道路扬尘控制措施及其效率评估研究进展[J]. 环境工程技术学报,2021,11(5):845-854. doi: 10.12153/j.issn.1674-991X.20200280
ZHANG Y F, CHEN J H, LI D, et al. Research progress of road dust control measures and their efficiency evaluation[J]. Journal of Environmental Engineering Technology,2021,11(5):845-854. doi: 10.12153/j.issn.1674-991X.20200280
|
| [19] |
张建国, 李红梅, 刘依婷, 等. 煤尘微细观润湿特性及抑尘剂研发初探: 以平顶山矿区为例[J]. 煤炭学报,2021,46(3):812-825.
ZHANG J G, LI H M, LIU Y T, et al. Micro-wetting characteristics of coal dust and preliminary study on the development of dust suppressant in Pingdingshan mining area[J]. Journal of China Coal Society,2021,46(3):812-825.
|
| [20] |
许中坚, 陈津瑞. 表面活性剂对土壤粘粒絮凝-分散的影响[J]. 环境科学研究,2003,16(3):62-64. doi: 10.3321/j.issn:1001-6929.2003.03.018
XU Z J, CHEN J R. Effect of surfactants on flocculation and dispersion of soil clay[J]. Research of Environmental Sciences,2003,16(3):62-64. doi: 10.3321/j.issn:1001-6929.2003.03.018
|
| [21] |
杜翠凤, 王远, 卢俊杰, 等. 吸湿型路面抑尘剂配方研制及工业试验[J]. 东北大学学报(自然科学版),2015,36(6):876-881.
DU C F, WANG Y, LU J J, et al. Formula development and industrial testing of a hygroscopic road dust-depressor[J]. Journal of Northeastern University (Natural Science),2015,36(6):876-881.
|
| [22] |
黄志胜. 露天矿山运输路面新型泡沫抑尘剂的配制及性能试验研究[D]. 赣州: 江西理工大学, 2021.
|
| [23] |
HUANG Z A, HUANG Y, YANG Z J, et al. Study on the physicochemical characteristics and dust suppression performance of new type chemical dust suppressant for copper mine pavement[J]. Environmental Science and Pollution Research,2021,28(42):59640-59651. □ doi: 10.1007/s11356-021-14917-z
|
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