Experimental and molecular dynamics simulation research on compound dust suppressant based on locust bean gum

Nie, Wen; Yuan, Mengwei; Qiu, Bao; Yan, Jerry; Zhou, Weiwei; Guo, Cheng; Guo, Lidian; Niu, Wenjin; Hua, Yun

doi:10.1016/j.apt.2022.103485

Cited by 40 publications

(6 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This led to a reduction in the water retention rate. Nevertheless, when considering the overall performance, the water retention of the cross‐linked dust suppressant showed a significant improvement compared to the single‐component SA 24 . There were significant differences in the dust production rate of coal treated with the composite solution containing varying proportions of SA and a sustained release system.…”

Section: Resultsmentioning

confidence: 99%

“…Nevertheless, when considering the overall performance, the water retention of the cross-linked dust suppressant showed a significant improvement compared to the single-component SA. 24 There were significant differences in the dust production rate of coal treated with the composite solution containing varying proportions of SA and a sustained release system. As the proportion of the sustained release system increased, there was a noticeable decrease in the dust production rate.…”

Section: Dust Suppression Effect Of Selfreactive Colloidal Dust Suppr...mentioning

confidence: 97%

See 1 more Smart Citation

Study on the property of self‐reactive colloidal dust suppressant and the synergistic dust suppressant mechanism

Lu,

Liu,

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

The poor plasticity of coal results in a large amount of dust during the mining process, thereby posing a significant impact on mine safety and the health of workers. In order to address this issue, a method has been proposed to suppress dust by enhancing the plasticity of coal through injecting a reactive material, which forms a colloid within the coal. The results implicated that the self‐active colloidal dust suppressant, composed of sodium alginate, gluconolactone, calcium disodium EDTA, and sodium dodecyl sulfate, effectively improved the moisture content of coal seams and decreased the brittleness of coal. Scanning electron microscopy and specific surface area test revealed that the dust suppressant not only tightly adheres to the surface of the coal after the reaction, but also penetrates the coal pores and forms a colloid on both the inner and outer surfaces of the coal. The material is rich in carboxyl and hydroxyl groups, which forms hydrogen bonds with the carboxyl and hydroxyl groups present in coal. This interaction enhances the toughness of coal. Simultaneously, it has the ability to adsorb water and function as a moisturizer. The combined synergistic effect of these mechanisms fundamentally reduces dust production during the coal mining process.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Dust Suppression Effect Of Selfreactive Colloidal Dust Suppr...mentioning

confidence: 97%

Study on the property of self‐reactive colloidal dust suppressant and the synergistic dust suppressant mechanism

Lu,

Liu,

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…The specific settings are as follows: the PW91 functional was based on the generalized gradient approximation (GGA), and the basis set was the double numerical polarization basis set (DNP). 25 Anthracite/AEO 9 /water and anthracite/water systems were constructed using the AC module. Each system contains 8 surfactant molecules, 20 anthracite molecules, and 1000 water molecules.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…First, electrostatic potential simulations were performed in the DMol3 module to optimize the structure of each molecular model and to analyze the Mulliken charge changes. The specific settings are as follows: the PW91 functional was based on the generalized gradient approximation (GGA), and the basis set was the double numerical polarization basis set (DNP) . Anthracite/AEO 9 /water and anthracite/water systems were constructed using the AC module.…”

Section: Experimental Methodsmentioning

confidence: 99%

Study of the Micromechanism of the Effect of Fatty Alcohol Poly(oxyethylene) Ether-9 on the Wettability of Jincheng Anthracite

et al. 2022

View full text Add to dashboard Cite

The influence mechanism of the adsorption of fatty alcohol poly(oxyethylene) ether (AEO 9 ) on the wettability of anthracite coal was studied by means of experiments and simulations. First, the contact angle and surface tension were measured. When the AEO 9 concentration was 0.5 wt %, the contact angle and surface tension were the smallest, which were 10.28°and 25.39 mN m −1 , respectively. X-ray photoelectron spectroscopy (XPS) indicated that the content of C−O functional groups on the anthracite surface increased by 20.76% after adsorption of AEO 9 . The molecular orbital energy and electrostatic potential of AEO 9 and anthracite were calculated by density functional theory (DFT). There are two modes of electron transfer between the two orbitals: highest occupied molecular orbital (HOMO) transfer of AEO 9 to lowest unoccupied molecular orbital (LUMO) transfer of anthracite and HOMO transfer of anthracite to LUMO transfer of AEO 9 . The dynamics simulation results show that the addition of AEO 9 increases the migration rate of water molecules, promotes the movement of a large number of water molecules toward the surface of anthracite, and enhances the thickness of the water molecular layer on the surface of anthracite. The analysis of the relative concentration shows that AEO 9 is distributed at the anthracite/water interface. AEO 9 molecules are intertwined and connected by hydrophobic chains to form a network structure, which covers the anthracite surface horizontally, thus promoting the strength of the anthracite/water interaction.

show abstract

“…The dust suppressant increases the wettability and water retention of coal dust, and can effectively target limestone mine dust. In addition, according to coal dust's features of small particle size, low viscosity, and low moisture content, Nie et al [28] developed a composite dust suppressor with natural locust bean gum as a binder, combined with other substances. The dust suppressant increases the wettability and water retention of coal dust.…”

Section: Polysaccharide Biopolymers Dust Suppressantmentioning

confidence: 99%

Research Progress of Bio-organic Dust Suppressants

Yang,

Hong,

Huang

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Both natural and human-generated dust can cause serious harm to the environment and human health. Since the dust suppressants can accelerate the dust settlement more effectively to prevent the dust from raising; at the same time, to comply with the concept of environmental protection, the use of natural bioorganic materials to prepare dust suppressants has become a research hotspot. This paper summarizes the working principle of dust suppressants and the evaluation indexes of the performance of the dust suppressants, reviews the methods and research results of using bio-organic materials such as polysaccharides, lignin, proteins, microorganisms, agricultural and forestry wastes to prepare dust suppressants in recent years, and puts forward the suggestions on the problems of the current bio-organic dust suppressants to provide a reference for their further development in the future.

show abstract

Experimental and molecular dynamics simulation research on compound dust suppressant based on locust bean gum

Cited by 40 publications

References 31 publications

Study on the property of self‐reactive colloidal dust suppressant and the synergistic dust suppressant mechanism

Study on the property of self‐reactive colloidal dust suppressant and the synergistic dust suppressant mechanism

Study of the Micromechanism of the Effect of Fatty Alcohol Poly(oxyethylene) Ether-9 on the Wettability of Jincheng Anthracite

Research Progress of Bio-organic Dust Suppressants

Contact Info

Product

Resources

About