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Method for measuring solid grain size calibration factor Kd of resistance process granulometer

A particle size analyzer, solid particle technology, applied in the direction of particle size analysis, particle and sedimentation analysis, measuring devices, etc., can solve the problems that the existing technology does not have universal adaptability, achieve universal practicability and improve accuracy

Inactive Publication Date: 2010-06-30
SHANGHAI INST OF MEASUREMENT & TESTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The disadvantages of the prior art are: the calibration of the particle size calibration coefficient is carried out in an ideal state, the particles are spherical, the surface is smooth and complete, the particles have no conductivity, have a certain particle size distribution shape, and are monodisperse particle systems
Therefore, the existing technology does not have universal adaptability

Method used

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  • Method for measuring solid grain size calibration factor Kd of resistance process granulometer
  • Method for measuring solid grain size calibration factor Kd of resistance process granulometer
  • Method for measuring solid grain size calibration factor Kd of resistance process granulometer

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Experimental program
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Embodiment 1

[0026] Embodiment 1: see figure 1 , the manufacturer of the resistance method particle size analyzer in this embodiment is BECKMANCOULTER Company of the United States, the model is Mutisizer III; the aperture of the small hole tube is 100 μm, and the particle size measurement range of the corresponding particle sample to be measured is 2-60 μm; the particle size standard material is selected National secondary standard material GBW (E) 120006 polystyrene latex ball particle suspension, the nominal value of peak diameter is 20.62 μ m; Electrolyte solution selects the concentration that American BECKMAN COULTER company produces as 0.9% sodium chloride electrolytic solution, commercial product It is called ISOTON II; the particle samples to be tested can be selected from irregular shaped solid particles such as mica and quartz, or porous solid particles such as alumina and activated carbon, or conductor and semiconductor solid particles such as copper powder and zinc oxide.

[00...

Embodiment 2

[0032] Example 2: see figure 2 , the manufacturer of the resistance method particle size analyzer in this embodiment is the American BECKMANCOULTER company, the model is Mutisizer III; the aperture of the small hole tube is 560 μm, and the particle size measurement range of the corresponding particle sample to be tested is 11.2-336 μm; the particle size standard material is selected The national secondary standard material GBW (E) 120008 polystyrene latex ball particle suspension, the nominal value of peak diameter is 75.00 μ m; Electrolyte solution selects the concentration that American BECKMAN COULTER company produces is the sodium chloride electrolyte solution of 0.9%, commercial product It is called ISOTON II; the particle samples to be tested can be selected from irregular shaped solid particles such as mica and quartz, or porous solid particles such as alumina and activated carbon, or conductor and semiconductor solid particles such as copper powder and zinc oxide.

[...

Embodiment 3

[0039] Embodiment 3: see image 3 , the manufacturer of the resistance method particle size analyzer in this embodiment is BECKMANCOULTER Company of the United States, the model is Mutisizer III; the aperture of the small hole tube is 1000 μm, and the particle size measurement range of the corresponding measured particle sample is 20-600 μm; the particle size standard material is selected The national secondary standard material GBW (E) 120008 polystyrene latex ball particle suspension, the nominal value of peak diameter is 75.00 μ m; Electrolyte solution selects the concentration that American BECKMAN COULTER company produces is the sodium chloride electrolyte solution of 0.9%, commercial product It is called ISOTON II; the particle samples to be tested can be selected from irregular shaped solid particles such as mica and quartz, or porous solid particles such as alumina and activated carbon, or conductor and semiconductor solid particles such as copper powder and zinc oxide....

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Abstract

The invention relates to a method for measuring the solid grain size calibration factor Kd of a resistance process granulometer, belonging to the technical field of measurement and testing. The invention is characterized in that the method comprises the following steps: a. measuring infiltration density phi; b. calibrating initial solid grain size calibration factor Kda; c. preparing sample; d. analyzing granularity; and e. calculating the solid grain size calibration factor Kd of the resistance process granulometer according to the following formula. By adopting the technical scheme, the invention has the advantages that: 1. the impact of factors such as grain shape, porosity, electrical conductivity and the like on the measurement results is not considered; 2. the method is an absolute measurement method; and 3. the common practicability and the traceability in the measurement are high, and the accuracy of the magnitude measurement is improved.

Description

technical field [0001] The invention relates to the technical field of metering and testing, in particular to a calibration coefficient K of the solid particle size of a resistance method particle size analyzer d measurement method. Background technique [0002] Particle size analysis by resistance method is best known in the early days for blood counting and detection of insoluble particulate matter in large infusions. After improvement and development, it was rapidly popularized and widely used in the measurement of solid particles, droplets in emulsions, and filter material properties. , and has become a test standard for pharmaceutical, abrasive, dye and other industries. [0003] "Principles of Particle Size and Specific Surface Measurement" (Author: Tong Husong) published by Shanghai Science and Technology Literature Publishing House in June 1989 defines particle size analysis as: "One phase is distributed in another phase in a state of fine particles. The former is ...

Claims

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Application Information

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IPC IPC(8): G01N15/02
Inventor 吴立敏何慈晖徐建辛立辉朱丽娜
Owner SHANGHAI INST OF MEASUREMENT & TESTING TECH
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