季铵化瓜尔胶/发泡剂分离泡沫系统对呼吸性粉尘的除尘效果研究

IF 4.6 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2025-09-30 DOI:10.1016/j.powtec.2025.121715

Qing Zhang , Mingyun Tang , Bingyou Jiang , Guanglong Dai , Jinwei Qiu , Liang Zhou , Jianguo Cai , Baiju Zhang

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引用次数: 0

摘要

传统喷雾技术对煤矿呼吸性粉尘（PM2.5/PM10）的捕集沉降效率过低，严重影响煤矿安全和职业健康。本研究创新性地提出了一种离散泡沫除尘技术。以APG0810/SDS为发泡剂（SAP），天然高分子瓜尔胶（GG）和季铵改性阳离子瓜尔胶（CGG）为泡沫稳定剂，研制了一种分散型泡沫抑尘剂。通过实验和分子模拟研究表明，与SAP/GG体系相比，SAP/CGG体系添加季铵盐基团后，烟煤的接触角降低了7.73%，表观粘度提高了27.61%，润湿性和黏附性均有所提高。综合考虑经济效益，通过巷道风速、离散泡沫数、半衰期三因素正交试验，确定了0.5% SAP + 0.3% CGG为最佳配比。该系统形成的泡沫团簇能有效地湿润、包裹和沉降呼吸性粉尘。与喷雾降尘相比，离散泡沫降尘对细颗粒粉尘的降尘效率提高42.48%，巷道能见度提高。本研究对地下呼吸性粉尘的治理具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Study on the dust removal efficiency of respirable dust by discrete foam system based on quaternized guar gum / foaming agent

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Study on the dust removal efficiency of respirable dust by discrete foam system based on quaternized guar gum / foaming agent

The capture and sedimentation efficiency of traditional spray technology for respirable dust (PM_2.5/PM₁₀) in coal mine is too low, which seriously affects mine safety and occupational health. In this study, a discrete foam dust removal technology was innovatively proposed. A discrete foam dust suppressant was developed with APG0810/SDS as foaming agent (SAP), natural polymer guar gum (GG) and quaternary ammonium modified cationic guar gum (CGG) as foam stabilizer. Through experiments and molecular simulation studies, it is shown that compared with SAP/GG system, SAP/CGG system adds quaternary ammonium salt groups, the contact angle is reduced by 7.73 %, the apparent viscosity is increased by 27.61 %, and the wetting and adhesion properties of bituminous coal are enhanced. Considering the economic benefits, and through the three-factor orthogonal experiment of roadway wind speed, discrete foam number and half-life, 0.5 % SAP + 0.3 % CGG was determined as the best ratio. The foam cluster formed by this system can effectively wet, wrap and settle the respirable dust. Compared with spray dust reduction, the dust reduction efficiency of discrete foam dust removal for fine particle dust is increased by 42.48 %, and the visibility of roadway is improved. This study is of great significance for the treatment of underground respirable dust.

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来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.