A circulatory system and method of slurry delivery in long-distance pipeline transportation of iron ore

2011 ◽  
Author(s):  
Youling Li ◽  
Hua Wang
Keyword(s):  
Iron Ore ◽  
Circulatory System ◽  
Pipeline Transportation ◽  
Long Distance

A Mathematical Model for the Pipeline Transportation of Soft Clay

2013 ◽  
Vol 275-277 ◽  
pp. 1476-1479 ◽  
Author(s):  
Wan Zhen Zhu ◽  
Shu Hui Wu ◽  
Song Lei Tao
Keyword(s):  
Mathematical Model ◽  
Flow Field ◽  
Soft Clay ◽  
Pipeline Transportation ◽  
Long Distance

We have found a way of a pipeline transportation of soft clay in order to overcome the difficulties to transport soft clay so that the long distance transportation of soft clay becomes true in Engineering. By analyzing the properties of soft clay and pipeline transportation, the rules of decreasing energy through the pipeline transportation, and the characters of flow field with gas, liquid and mud, we have obtained a mathematical model for the pipeline transportation of soft clay. The model not only builds up a theory for the non-continuous soft clay column pipeline transportation techniques but also leads to further developments and wider applications of the pipeline transportation of soft clay.

Study on Parameters of Slurry Pipeline Transportation Technology in Grade

2014 ◽  
Vol 687-691 ◽  
pp. 556-559
Author(s):  
Guang Yue Pu ◽  
Yong Xia Bu ◽  
Chun Lei Pan ◽  
Hong Wei Liu
Keyword(s):  
Iron Ore ◽  
Hydraulic Characteristics ◽  
Pipeline Transportation ◽  
Two Phase ◽  
Mining Areas ◽  
Turbulent Transition ◽  
Solid Liquid ◽  
Minimum Operating ◽  
Iron Ore Concentrate

In generally, there are multiple factories. According to mining areas, it supplies different quality iron ore concentrate. And according to the unique requirements of owners, different grades concentrate cannot be confused. Therefore, the grade of slurry pipeline transportation is needed to be used. When in the study of grade transmission, we must focus on Hydraulic characteristics of solid-liquid two-phase for different quality of iron ore concentrate. Slurry concentration and Critical velocity of flow is especially important. Research shows that the deposition rate of laminar or turbulent transition velocity is higher than the occasion when the slurry has concentration, so the minimum operating speed is controlled by sedimentation; the concentration lower limit is 62%. If the concentration is over 68%, the yield stress of slurry will increase, and the pipeline pressure will drop, which is very sensitive to slight changes in concentration. Therefore, the solid weight concentration range is 62% to 68%,as the selection range of design.

A New Technique of Low-Pressure Long-Distance Soft Clay Pipeline Transportation

2012 ◽  
Vol 446-449 ◽  
pp. 2763-2769
Author(s):  
Song Lei Tao ◽  
Xing Ge Lian ◽  
Zi He Zhang ◽  
Yuan Hong Yu ◽  
Zhi Fang Zhao
Keyword(s):  
Soft Clay ◽  
Low Pressure ◽  
New Technique ◽  
Pipeline Transportation ◽  
Long Distance ◽  
A New Technique

Long-distance gas medium pipeline transportation - coal as an example

2009 ◽  
Author(s):  
Yongsheng Qian ◽  
Xiaoting Yin ◽  
Peng Sun ◽  
Zhengzheng Ren ◽  
Zhidan Lv
Keyword(s):  
Pipeline Transportation ◽  
Long Distance ◽  
Gas Medium

Study on Pipeline Transportation Experiment of Paste Filling Material

2012 ◽  
Vol 503-504 ◽  
pp. 987-990
Author(s):  
Jin Xiao Liu ◽  
Wei Jia Guo ◽  
Zeng De Yin
Keyword(s):  
Coal Mine ◽  
Simulation System ◽  
Filling Material ◽  
Pipeline Transportation ◽  
Long Distance ◽  
Material Parameters

The change law of basic paste material performance in the pipeline must be studied to verify long distance transportation in coal mine after the ratio of paste material is completed. This paper introduced simulation system which was developed by us and the pipeline transportation experiment was done. The change law of paste material parameters was studied including collapsed slump, segregation degree and density with pipeline experiment. And the contents of this paper could provide theoretical guidance for field paste filling.

Reliability-Based Scheme Design for Fault-Crossing of X90 Pipeline

2014 ◽  
Vol 1030-1032 ◽  
pp. 2601-2607
Author(s):  
Yu Qing Liu ◽  
Zhen Yong Zhang ◽  
Kai Wen
Keyword(s):  
Failure Probability ◽  
Oil And Gas ◽  
Theoretical Foundation ◽  
Design Method ◽  
Influence Factors ◽  
Steel Grade ◽  
Pipeline Transportation ◽  
Long Distance ◽  
Reliability Design ◽  
Scheme Design

While high steel grade X70, X80 pipeline has been widely used in long-distance oil and gas pipeline engineering of China, to further improve steel grade to X90 is an effective way to increase the efficiency of pipeline transportation and reduce construction cost. In this paper, the failure probability of earthquake fault crossing of X90 pipeline has been calculated with the strain-based reliability design method and the design scheme has been adjusted according to sensitivity analysis with influence factors of the failure probability of fault-crossing of X90 pipeline, after that the scheme of fault-crossing of X90 pipeline which meets requirements of pipeline reliability has been figured out. This study has laid a theoretical foundation for the application of X90 pipeline in future construction of pipeline engineering.

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