Calculation of transportation of the stowing composite based on the waste of water-soluble ores

Adigamov, Arkadiy; Zotov, V. V.; Kovalev, Roman; Kopylov, Andrey

doi:10.1016/j.trpro.2021.09.020

Cited by 6 publications

(1 citation statement)

References 25 publications

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“…Therefore, their correct choice is one of the most important factors in the backfill technology. The material must be highly transportable, which ensures that it will be delivered through pipes over long distances without fear of premature hardening [ 19 ]. The material must have high plasticity for the most complete filling of the mined-out void.…”

Section: Methodsmentioning

confidence: 99%

Creation of a Nanomodified Backfill Based on the Waste from Enrichment of Water-Soluble Ores

et al. 2022

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The paper analyzes losses during the development of low-value water-soluble ore deposits. The importance of development systems with backfill is shown. The use of industrial wastes of water-soluble ores to replace specially produced inert components in the preparation of backfill seems to be a good way to utilize them. The aim of the work was to create a fill mass with improved strength properties based on industrial wastes of water-soluble ores activated with a nanomodifying material. The characteristics (chemical and granulometric compositions) of an aggregate of the backfill based on the waste from enrichment of water-soluble ores are given. The validation of the hardening mixture compositions for various mining systems was carried out considering: the specified strength, the time of the artificial mass erection, the time to achieve the required strength properties of the material, which determine the possible intensity of the mining operations; method of transporting the backfill. The expediency of using a multilayer fulleroid nanomodifier astralene as a nanomodifying additive has been proved. The effect of the backfill activation with a nanomodifying additive, astralene, on the structural changes of halite wastes from the halurgic enrichment of water-soluble ores (potash) was investigated. To study the strength properties of the fill mass, the comparative analytical method was used. The strength properties of the backfill were measured in standard test periods, taking into account the intensity of hardening of the backfill material (after 7, 14, 28, 60, 90 days). To obtain reliable results, 10 backfill samples were tested at each of the scheduled dates. The shape and chemical composition of crystalline new forms were studied. Studies were performed using X-ray phase analysis and scanning electron microscopy. As a result of uniaxial compression of hardening backfill samples, the dependence of the ultimate strength on the astralene content and the hardening time were established. It has been experimentally proved that the use of a nanomodifying additive, astralene, in the backfill allows an increase in the strength properties of the created artificial mass by 1.76–2.36 times while reducing binder consumption.

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Section: Methodsmentioning

confidence: 99%

Creation of a Nanomodified Backfill Based on the Waste from Enrichment of Water-Soluble Ores

et al. 2022

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Study on rheological properties of large particle gangue slurry and its drag reduction effect caused by wall slippage in pipeline transportation

Xu,

Zhou,

Zhang

et al. 2024

Powder Technology

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Categorization of Factors Affecting the Resistance and Parameters Optimization of Ultra-Fine Cemented Paste Backfill Pipeline Transport

et al. 2022

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Ultra-fine cemented paste backfill (UCPB) is prepared using tailings, binder and water. The factors affecting the resistance of UCPB pipe transport are numerous and complex, and the factor interactions restrict the rational development of the filling pipe transport design, which is not conducive to reducing the resistance. This paper categorizes and integrates the factors of pipe transport resistance by theoretical analysis and uses response surface methodology (RSM) to study the influence of different types of factors on the UCPB pipe transport resistance. The results show that the pipe transport resistance factors are classified into endogenous and exogenous factors. According to the classification, the reduction rate of the optimized pipe transport resistance is as high as 25.31% and 15.81%. This shows that the categorization of factors affecting the pipe transport resistance is important for investigating UCPB pipe flow. The single-factor terms with the highest significance under the effect of endogenous and exogenous factors are mass concentration and pipe diameter, respectively. The two interaction terms with highest significance are mass concentration and slurry temperature, pipe diameter and flow velocity, respectively. The results provide new ideas to reduce the resistance of mine pipeline and improve the filling benefit and convenience of pipeline design.

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Calculation of transportation of the stowing composite based on the waste of water-soluble ores

Cited by 6 publications

References 25 publications

Creation of a Nanomodified Backfill Based on the Waste from Enrichment of Water-Soluble Ores

Creation of a Nanomodified Backfill Based on the Waste from Enrichment of Water-Soluble Ores

Study on rheological properties of large particle gangue slurry and its drag reduction effect caused by wall slippage in pipeline transportation

Categorization of Factors Affecting the Resistance and Parameters Optimization of Ultra-Fine Cemented Paste Backfill Pipeline Transport

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