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Method for calibrating particle size analysis data by using laser method and sieve analysis method

A technology of particle size analysis and correction method, applied in particle size analysis, individual particle analysis, particle and sedimentation analysis, etc., can solve problems such as unavoidable

Active Publication Date: 2013-01-23
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for correcting the particle size analysis data of the laser method and the sieve analysis method, so as to solve the problems that are often encountered and cannot be avoided in the data comparison and data docking of the current laser method and the sieve analysis method

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  • Method for calibrating particle size analysis data by using laser method and sieve analysis method
  • Method for calibrating particle size analysis data by using laser method and sieve analysis method
  • Method for calibrating particle size analysis data by using laser method and sieve analysis method

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Embodiment

[0021] In this embodiment, we take the sieve analysis method as an example to describe the specific implementation process of the present invention in detail, as figure 2 As shown, the specific steps are as follows:

[0022] 1. Select a representative sample. Here we take a sample from a certain place as an example. The main components are quartz, feldspar, felsic debris, a small amount of opaque minerals, and a small amount of mica. The roundness of the particles is mostly sub-prismatic.

[0023] 2. The standard sieve is 2000-63um, the particle size interval is 0.25Φ, and the sieve analyzer is the sonic automatic sieve analyzer manufactured by the Nanjing Institute of Geography and Lake Sedimentation, Chinese Academy of Sciences. A representative sample of about 200g is selected using the sieve analyzer In the range of 710 ~ 63um, sieve according to the particle size interval of 0.25Φ. The vibrating sieve generally takes about 10 minutes. The quality of each particle size is...

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Abstract

The invention relates to a method for calibrating particle size analysis data by using a laser method and a sieve analysis method, and belongs to the technical field of particle size analysis. The method comprises the following steps of: calculating sieve-analysis-method mid-values and laser-method mid-values of various narrow particle size distribution range samples which are selected from representative samples by using a sieve analysis method, and performing data regression analysis on the obtained sieve-analysis-method mid-values and the obtained laser-method mid-values so as to obtain a calibration formula; and finally, calibrating laser-method particle size analysis results of the samples into sieve-analysis-method particle size analysis results by using the calibrating formula, or calibrating the sieve-analysis-method particle size analysis results into the laser-method particle size analysis results by using the calibrating formula. According to obvious differences between data analyzed by the laser method and data analyzed by other methods, the calibrating formula is established on the basis of contrastive analysis of a large quantity of experimental data, and laser-method and sieve-analysis-method particle size analysis data are reasonably calibrated during data comparison and data docking in principle. The method can be used for calibrating data acquired by other particle size analysis methods.

Description

technical field [0001] The invention relates to a method for correcting particle size analysis data by a laser method and a sieve analysis method, and belongs to the technical field of particle size analysis. Background technique [0002] Grain size analysis is a routine analysis item in sedimentary geological research, and there are many analysis methods, such as sieve analysis, sedimentation method, pipette method, Coulter method, image method, ultrasonic method, laser method and so on. Particle size characterizes the size of particles, and there are many different measurement and representation methods. Sieve particle size analysis and laser particle size analysis are two commonly used methods. Driven by gravity and / or fluid, the particles move towards the sieve holes and try to pass through the sieve holes. The smaller the particles, the greater the probability of passing through the channel. The sieve body is always in a state of vibration and shaking, changing the po...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/14G01N15/02
Inventor 王慎文鲍磊周建文朱红卫肖琼胡艳革崔炜霞陈磊
Owner CHINA PETROLEUM & CHEM CORP
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