Simulation of Mine Electrical Penetration Technology

Liu, Zhixin; Yue, Jianhua; Liu, Shucai

doi:10.1016/s1006-1266(07)60098-4

Cited by 41 publications

(48 citation statements)

References 13 publications

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“…This is consistent with the result that the melting temperature of microcline is 1130-1450 • C, and it is wider than that of albite (1120-1250 • C). 26,28 The increase of the liquid phase caused by the melting of albite and microcline can fortify the mechanical strength and decrease the permeability of the permeable bricks (Fig. 6).…”

Section: Xrd Analysismentioning

confidence: 99%

Recycling of granite waste and burnt coal cinder for the preparation of sintered permeable bricks

Gui

Huang

Luo

et al. 2023

Int J Applied Ceramic Tech

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The sintered permeable brick was prepared using granite waste and burnt coal cinder (BCC) as raw materials to ensure the utmost utilization of both solid wastes. The effect of various parameters, such as the proportion of raw materials, granite particle size and sintering temperatures on the properties of the permeable brick were studied, and the relevant sintering mechanism was clarified. The differential scanning calorimetry curves indicate that the mixture of granite waste and BCC begins to melt at a lower temperature, which is lower than the temperature for melting them alone, so the use of them to prepare sintered bricks will reduce energy consumption. The optimal conditions for the preparation of the permeable bricks were determined as the mass ratio of granite waste to BCC of 80: 20, sintering temperature of 1150–1175°C, and granite particle size of .9–1.25 mm. It was found that the permeability and the flexural strength of the samples can reach 3.41 × 10 −2 cm/s and 4.2 MPa, respectively, which both exceed the requirements specified in the national standard of China.

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Section: Xrd Analysismentioning

confidence: 99%

Recycling of granite waste and burnt coal cinder for the preparation of sintered permeable bricks

Gui

Huang

Luo

et al. 2023

Int J Applied Ceramic Tech

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“…[10] Liu studied the influences of the liquid pulsation period and the amplitude of the liquid flow on the interferential settling of coarse slime with experiment and got access to the optimal coarse slime separation conditions in the LSFB bed separator. [11] Zhang et al evaluated the effects of using the pulsating liquid flow in the LSFB separator on the coarse slime separation effect through the computational fluid dynamics (CFD) method and experiment, then revealed that the particle properties directly influenced the particle flow behaviour. [12] All the research objects above were pulsating continuous fluidized beds, where the flow structures were the pulsating flow adding the additional continuous steady flow.…”

Section: Introductionmentioning

confidence: 99%

Study on the flow characteristics of the pulsating intermittent liquid–solid fluidized bed with step liquid velocity by CFD approach

et al. 2022

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A new type of liquid-solid fluidized bed (LSFB), the pulsating intermittent LSFB (PI-LSFB), which uses pulsating liquid flow, was analyzed through numerical and experimental study. A good agreement between numerical simulation results and laboratory experimental measurement data was achieved.The mass transfer efficiency between the liquid and solids phases was enhanced since the relative velocity was significantly improved. The flow characteristics of the PI-LSFB were analyzed through the Eulerian-Eulerian approach, incorporating the kinetic theory of granular flow. The solids holdup

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“…The suspension function of high speed maglev trains is carried out by the electromagnetic attractive force between the electromagnets and the rail, and the train is driven by linear synchronous motor [ 1 , 2 ] which has high power factor and can provide strong enough tractive force. The long stator of the motor made of laminated silicon-steel sheets is installed along the rail, and the rotor is the suspension electromagnet group shown in Figure 1 .…”

Section: Introductionmentioning

confidence: 99%

A High Precision Position Sensor Design and Its Signal Processing Algorithm for a Maglev Train

Xue

et al. 2012

Sensors

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High precision positioning technology for a kind of high speed maglev train with an electromagnetic suspension (EMS) system is studied. At first, the basic structure and functions of the position sensor are introduced and some key techniques to enhance the positioning precision are designed. Then, in order to further improve the positioning signal quality and the fault-tolerant ability of the sensor, a new kind of discrete-time tracking differentiator (TD) is proposed based on nonlinear optimal control theory. This new TD has good filtering and differentiating performances and a small calculation load. It is suitable for real-time signal processing. The stability, convergence property and frequency characteristics of the TD are studied and analyzed thoroughly. The delay constant of the TD is figured out and an effective time delay compensation algorithm is proposed. Based on the TD technology, a filtering process is introduced in to improve the positioning signal waveform when the sensor is under bad working conditions, and a two-sensor switching algorithm is designed to eliminate the positioning errors caused by the joint gaps of the long stator. The effectiveness and stability of the sensor and its signal processing algorithms are proved by the experiments on a test train during a long-term test run.

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Simulation of Mine Electrical Penetration Technology

Cited by 41 publications

References 13 publications

Recycling of granite waste and burnt coal cinder for the preparation of sintered permeable bricks

Recycling of granite waste and burnt coal cinder for the preparation of sintered permeable bricks

Study on the flow characteristics of the pulsating intermittent liquid–solid fluidized bed with step liquid velocity by CFD approach

A High Precision Position Sensor Design and Its Signal Processing Algorithm for a Maglev Train

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