Liquid, sprayable, and Environment-friendly PSGT dust suppressant for coal dust control
Coal dust generation occurs extensively across multiple stages of coal mining, transportation, storage, and application, which seriously affected the health of miners and caused environmental pollution. Consequently, the development of an environmentally friendly, easy-to-apply, and efficient dust suppressant is of paramount importance for improving occupational safety and environmental protection. In this study, a novel environmentally friendly dust suppressant (PSGT) was developed relying on the intermolecular hydrogen bond interaction of polyvinyl alcohol (PVA), soluble starch (SS), glycerol (Gly), and Triton X-100. The formulation was optimized through orthogonal experimental design to determine the ideal composition parameters. The physical and chemical properties of the PSGT samples were systematically characterized. The results demonstrated that the PSGT 9 dust suppressant exhibited an extremely short penetration time of merely 10 s, a sedimentation rate reaching 1.5 cm/s, a remarkably high compressive strength of 1.56 MPa for the consolidation layer of coal dust, and a coal dust loss rate of 12 % under a simulated wind speed of 9 m/s. Moreover, the dust suppression effects of deionized water and commercial dust suppressant were compared with those of PSGT dust suppressants, indicating that the PSGT showed better water retention, and dust-solidifying properties. The PSGT dust suppressant exhibited excellent moisture retention, wind erosion resistance, and dust-solidifying properties, etc., which can applicable for dust prevention during coal mining, transport, and storage, enhancing the dust suppression efficiency obviously and showing significant meaning to the sustainable development of the coal mining industry while protecting the environment.
危险品化学品经营许可证（带存储）