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A Method for Determining the Reference Zero Point of the Ring Pipe Test System

A technology of reference zero point and test system, which is applied in the field of mine filling, can solve the problems of inability to realize accurate test of paste conveying resistance and poor repeatability, and achieve the effect of low cost, environmental protection and simple process

Active Publication Date: 2021-03-05
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a method for determining the reference zero point of the ring pipe test system in view of the problems that the existing ring pipe test system cannot realize the precise test of the paste conveying resistance and poor repeatability.

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  • A Method for Determining the Reference Zero Point of the Ring Pipe Test System
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  • A Method for Determining the Reference Zero Point of the Ring Pipe Test System

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Embodiment 1

[0035] A method for determining the reference zero point of the ring pipe test system, the method first tests the pipeline pressure under different flow Q and draws the curve of the flow Q and the hydraulic gradient J, and then calculates the roughness of the ring pipe system and compares it with the absolute roughness of the standard pipeline For comparison, when the two are consistent, it is determined as the reference zero point of the ring pipe system.

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Abstract

The invention provides a method for determining the reference zero point of a ring pipe test system, which belongs to the technical field of mine filling. The invention is based on the ring pipe test system, using water as the standard conveying medium to carry out the standard water curve test, drawing the relationship curve between the flow Q and the hydraulic gradient J, and the flow Q under the standard pipeline roughness 标 and hydraulic gradient J 标 Compare the relationship curves between them, determine the roughness of the pipeline by the band value method, and compare it with the absolute roughness of the pipeline material to determine the reference zero point of the ring pipe system. This invention greatly reduces the systematic error of the ring pipe test system. The precise measurement of the resistance loss of the ring pipe system is realized.

Description

technical field [0001] The invention relates to the technical field of mine filling, in particular to a method for determining the reference zero point of a ring pipe test system. Background technique [0002] Full tailings paste has a high concentration of slurry and a high content of fine-grained materials, resulting in high yield stress and high viscosity, which brings great difficulties to pipeline transportation, prone to pipe blockage, pipe burst accidents, and even paralysis of the entire filling system , which greatly limits the application of paste filling technology. The key to solving the above problems lies in the accurate measurement of the filling slurry pipeline transportation resistance and the reasonable design of the transportation parameters. Scholars at home and abroad believe that the transmission resistance of slurry in the ring pipe test is more in line with engineering reality. However, due to the different system construction specifications and pipe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M10/00G06F30/20G06F113/14
CPCG01M10/00
Inventor 王少勇吴爱祥王建栋阮竹恩周勃
Owner UNIV OF SCI & TECH BEIJING