equipment for rheological properties for backfill in mines

equipment for rheological properties for backfill in mines

equipment for rheological properties for backfill in mines ...

equipment for rheological properties for backfill in mines. Rheological properties, such as the yield stress, viscosity, and thixotropy, are related to the microstructure of cemented paste backfill (CPB). To highlight the relationship, two instruments were combined to measure the changes in the microstructure and the rheological properties of ...

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equipment for rheological properties for backfill in mines

Mine Backfill Brochure - Paterson Cooke. assessment, rheological and flow behaviour characterization and backfill recipe ... tool for predicting the dewatering and flow properties of the backfill product. ... the correct selection of equipment type and capacity crucial to the operability of the ..... on a Budget; low capital paste backfill injection for small mines or brownfield.

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Geotechnical Applications Of Rheological Models

Equipment For Rheological Properties For Backfill In Mines Chandrakant S. Desai: Constitutive modeling and computer methods in geotechnical engineering 7 INTRODUCTION In the continuing pursuits for realistic models for

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Contribution to Laboratorial Determination of Rheological ...

2.1 Mine backfill 4 2.2 Paste backfill 5 2.2.1 Supply of materials 5 2.2.2 Mix design 6 2.2.3 Production 9 2.2.4 Future challenges 10 2.3 Rheology 12 2.3.1 Rheological properties, concepts and models 12 2.4 Paste backfill rheology 18 2.4.1 Determinant factors 19 2.4.2 Yield Stress 21 2.4.3 Measurement methodologies 24

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Rheological Properties of Cemented Paste Backfill with ...

This study investigates the time-dependent rheological behavior of cemented paste backfill (CPB) that contains alkali-activated slag (AAS) as a binder. Rheological measurements with the controlled shear strain method have been conducted on various AAS-CPB samples with different binder contents, silicate modulus (Ms: SiO2/Na2O molar ratio), fineness of slag and curing temperatures.

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CFD Simulation of Pipeline Transport Properties of Mine ...

backfill pump equipment represents an enormous expenditure for a mine. Therefore, an increasing ... [12] and Chen et al. [13] have studied the application of foam slurry in mine backfill and have concluded that the backfill can meet the requirements. ... laboratory tests to study the effect of foam on the rheological properties of backfill ...

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Determining the Rheological Properties of Mine Tailings

Jul 16, 2015  Determining the Rheological Properties of Mine Tailings. Mining activities produce a variety of waste products, including waste rock, slags, overburden, mine water, and tailings. Tailings are leftover mineral byproducts of ore processing. The composition of tailings depends on the composition of the ore and the extraction process used to obtain ...

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Solutions for the Mining Industry

Backfill, the process of backfilling material into the underground voids created by mining, is becoming increasingly important because of current trends in mining: deeper excavation, optimizing ore and water recovery, improving the mine cycle as well as production

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(PDF) Underground Mining with Backfill Tony Grice ...

Grice A. 1998, The 2nd Annual Summit – Mine Tailings Disposal Systems, Brisbane Underground Mining With Ba ckfill By A Grice 1 Introduction include waste development rock, deslimed and whole mill tailings, quarried and crushed aggregate, and alluvial or aeolian Backfill is an increasingly important component of sand.

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equipment for rheological properties for backfill in mines

Underground Mining with Backfill PDF 文件 . Underground Mining with Backfill by Tony Grice Senior Mining Engineer Australian Mining Consultants L19/114 William Street, Melbourne, VIC 3000

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Rheological properties of cemented paste backfill with ...

Nov 01, 2020  Time and temperature-dependent rheological properties of cemented paste backfill that contains superplasticizer Powder Technol. , 360 ( 2020 ) , pp. 731 - 740 Article Download PDF View Record in Scopus Google Scholar

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Contribution to Laboratorial Determination of Rheological ...

2.1 Mine backfill 4 2.2 Paste backfill 5 2.2.1 Supply of materials 5 2.2.2 Mix design 6 2.2.3 Production 9 2.2.4 Future challenges 10 2.3 Rheology 12 2.3.1 Rheological properties, concepts and models 12 2.4 Paste backfill rheology 18 2.4.1 Determinant factors 19 2.4.2 Yield Stress 21 2.4.3 Measurement methodologies 24

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Strength and Elastic Properties of Paste Backfill at the ...

backfill beam allowing thinner sections of the beam to fail , more than like ly in bending [4]. Following this event a study was initiated between the National Institute for Occupational Safety and Health (NIOSH) Spokane Mining Research Division (SMRD) and the Hecla Mining Company to quantify the mechanical properties of the paste backfill.

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Rheological behavior of ultrafine-tailings cemented paste ...

Aug 30, 2020  1. Introduction. With the improvement of safety and environmental requirements for the mining engineering, cemented paste backfill (CPB) technology gets more attention .The CPB consists of tailings, cementitious materials (e.g., cement, fly ash), additives (e.g., flocculants, pumping agents), and water .It is generally prepared at the ground, and then transported to the underground stope ...

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Backfilling technology in Kazakhstan mines SpringerLink

Jun 08, 2013  The article reviews backfilling complexes operating at Kazakhstan mines and describes laboratory and industrial tests of effect of cement-ash binder and plastifier combination on rheological properties and strength of filling masses.

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Effect of High Mixing Intensity on Rheological Properties ...

Cemented paste backfill (CPB) consists of a mixture of fine particles, mainly consisting of tailings and cement dispersed in water. Therefore, it is necessary to introduce an intensive shearing force into the paste during mixing in order to maintain an equilibrium between agglomeration and dispersion. It is influential for the macroscopical fluidity and rheological properties when changes ...

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Investigation of the Sedimentation Property of Backfill ...

In addition, rheological property is believed to be a reliable factor for describing the backfill slurry pipeline transportation . Hence, this research aims at investigating the sedimentation property of the backfill material by conducting a series of rheological tests of the iron tailings backfill material with various mass concentrations.

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Effects of Tailings Gradation on Rheological Properties of ...

May 28, 2019  The key technology in filling mining is the gravity transportation of high-density slurries, and the filling system design is a significant part of this technology. The filling effect depends on the fluidity of the filling slurry. To investigate the influence of the gradation of tailings on the rheological properties of the filling slurry, this study uses particle size analysis to prepare ...

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(PDF) Geotechnical properties of cemented paste backfill ...

It is the most commonly used. paste fill mix, and can be taken as being repre-. sentative of a ‘typical’ fill mix used at the mine, with the following properties. Moisture content 21%. Void ...

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Minerals Free Full-Text Rheological Properties of ...

Ultra-fine tailings cemented paste backfill (UCPB) exhibits special rheological characteristics with the effect of an ultrasonic sound field. In this study, in order to explore the thickening effect of slurry under ultrasonic wave action, we examined the rheological properties with ultrasonic wave tests of UCPB and the rheological properties after ultrasonic wave tests of UCPB.

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Solutions for the Mining Industry

Solutions for the Mining Industry. Backfill. Backfill, the process of back filling material into the underground voids created by mining, is becoming increasingly important because of current trends in mining: deeper excavation, optimizing ore and water recovery, improving the mine cycle and production while reducing environmental

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Green mining – use of hydraulic backfill in the Velenje ...

Green mining – use of hydraulic backfill in the Velenje Coal Mine . DOI link for Green mining – use of hydraulic backfill in the Velenje Coal Mine. Green mining – use of hydraulic backfill in the Velenje Coal Mine book. By Jože Kortnik. Book Minefill 2020-2021. Click here to navigate to parent product.

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EXTENDED ABSTRACT - ULisboa

distances underground. The rheological characterisation of paste backfill is a difficult and complex task, given the high number of variable factors. So far, no standard procedures and/or methods have been established for measuring the rheological properties of paste backfill, in particular the yield stress.

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Paste Fill Mining Operations Custom Concrete Northern

Paste backfill is used in underground hard rock mines primarily to fill the vertical stopes where veins of precious metals are extracted. Rheology, the study of deformation and flow of matter is crucial to ensure the product reaches its destination thousands of meters underground.

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equipment for rheological properties for backfill in mines

equipment for rheological properties for backfill in . equipment for rheological properties for backfill in mines equipment for rheological properties for backfill in mines ieee template in a4 (v1) dpi journals in this , gangue backfilling mining in an environment of alluvium soil with china is a country that has abundant supplies of coal but has far smaller with a rheological property, the ...

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Strength and Elastic Properties of Paste Backfill at the ...

backfill beam allowing thinner sections of the beam to fail , more than like ly in bending [4]. Following this event a study was initiated between the National Institute for Occupational Safety and Health (NIOSH) Spokane Mining Research Division (SMRD) and the Hecla Mining Company to quantify the mechanical properties of the paste backfill.

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A simple L-shape pipe flow test for practical rheological ...

Nov 01, 2019  This study examined how to implement a simple slump, bleeding, and L-shape pipe flow test instead of the complicated flow loop test to determine engineering rheological properties for mining backfill. The results led to the following conclusions. The slump and bleeding decrease with the increase of concentration and limestone.

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Mine Back Filling - Central Institute of Mining and Fuel ...

A brief description of Facilities/ Equipment/Tools/software with photos; Major Facilities: 1 (PLAXIS 3D software for numerical modeling of various geotechnical challenges encountered in mining and allied activities) (Modular Compact Rheometer used for investigating rheological parameters of paste and high concentration backfill)

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[PDF] Experimental Study and Application of Rheological ...

From the perspective of resource recovery and environmental protection, coal gangue-fly ash cemented backfill coal mining has become an important direction for the green development of coal mines in recent years. Analysis of the rheological parameters of backfill slurry is the basic principle to design a backfill pipeline system. Coal gangue-fly ash backfill slurry has a mass concentration of ...

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Rheological Properties of Cemented Tailing Backfill and ...

DOI: 10.3390/ma8052076 Corpus ID: 8970492. Rheological Properties of Cemented Tailing Backfill and the Construction of a Prediction Model @article{Lang2015RheologicalPO, title={Rheological Properties of Cemented Tailing Backfill and the Construction of a Prediction Model}, author={Liu Lang and K. Song and D. Lao and T. Kwon}, journal={Materials}, year={2015}, volume={8},

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Temperature Dependency of the Rheological Properties and ...

failure of CPB structure in the mine stopes due to inappropriate mechanical strength may cause casualties to the mine workers as well as significant environmental and economic damages. Many researchers studied the rheological properties and/or strength development of CPB under the individual effect of any of the aforementioned factors.

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EXTENDED ABSTRACT - ULisboa

distances underground. The rheological characterisation of paste backfill is a difficult and complex task, given the high number of variable factors. So far, no standard procedures and/or methods have been established for measuring the rheological properties of paste backfill, in particular the yield stress.

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Experimental research on the rheological properties of ...

Oct 24, 2018  The rheological properties of tailings from gold, copper, and iron ore have been studied in this paper, using a self-developed large-scale type coaxial cylinder rheometer. The effect factors of the rheological properties of tailings, namely mineral types, particle size, plasma concentration, and the shear rate, and the influence they have on the viscosity and yield stress have also been ...

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Presents: Mine Backfill Design Operation Course

Stephen Wilson Director, (Mining) Engineer, adds international expertise from mining in Russia and the integration of tailings management and backfill technologies. Dr. Matthew Treinen (Mechanical/Civil) Engineer, specializes in backfill system hydraulics, reticulation system design and rheological characterization. Presenters

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Green mining – use of hydraulic backfill in the Velenje ...

Green mining – use of hydraulic backfill in the Velenje Coal Mine . DOI link for Green mining – use of hydraulic backfill in the Velenje Coal Mine. Green mining – use of hydraulic backfill in the Velenje Coal Mine book. By Jože Kortnik. Book Minefill 2020-2021. Click here to navigate to parent product.

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equipment backfilling strip mine

Equipment Backfilling Strip MineEquipment Backfilling Strip Mine The majority of the property is reclaimed strip mines.I also recently purchased a new bobc. Surface mining Wikipedia. Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category get price

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Solutions for the Mining Industry

10 Solutions for the Mining Industry Backfill Technologies Backfill, the process of backfilling material into the underground voids created by mining, is becoming increasingly important because of current trends in mining: deeper excavation, optimizing ore and water recovery, improving the mine cycle as well as production while reducing

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Backfill Systems – NEMCCO

Knowing the mine fill components is key to understand the behavior and to optimize the recipe for a better and lower cost backfill operation. Working together with world-wide lab testing centers, testing includes the characterization of physical properties, mineralogy of solids and

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