JPS56124035A - Measuring device for particle size - Google Patents

Measuring device for particle size

Info

Publication number
JPS56124035A
JPS56124035A JP2861780A JP2861780A JPS56124035A JP S56124035 A JPS56124035 A JP S56124035A JP 2861780 A JP2861780 A JP 2861780A JP 2861780 A JP2861780 A JP 2861780A JP S56124035 A JPS56124035 A JP S56124035A
Authority
JP
Japan
Prior art keywords
powder
particle size
sample
distribution
rough
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2861780A
Other languages
Japanese (ja)
Inventor
Yoshiro Hanazaki
Eiji Ishii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP2861780A priority Critical patent/JPS56124035A/en
Publication of JPS56124035A publication Critical patent/JPS56124035A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution

Abstract

PURPOSE:To enable precise and continuous measurement of the distribution of particle size by whirling a sample and air together inside the classifying chamber of a classifier, separating thereby the sample into rough powder and fine powder, and finding the distribution of particle size in the ratio of the quantity of powdered sample to the quantity of rough powder or fine powder thereof. CONSTITUTION:The sample collected from a powdered body transferring pipe 1 through a powder collecting pipe 2 is separated from air by a cyclone 3 and sent to the classifier 6. The classifying chamber 24 of the classifier 6 is divided by disc-shaped rotary wheels 28 and 29 and many adjusting valves 39 which are provided at equal intervals, an airing port 30 discharging fine powder is provided in the center, while a rough-powder discharging port 34 is provided at the outer- peripheral part, and air is blown in through apertures between the adjusting valves 39, whereby whirling current is caused. Accordingly, a classifying point is shifted by adjusting the direction of the adjusting valves, while, by fixing the adjusting valves 39, the classifying point turns stationary even when the distribution of the particle size of the sample varies. And, the quantity of powdered body and the quantity of rough powder are weighed respectively, electric signals F and R thereof are inputted in a controller 9 and thus the distribution R/F of the particle size is operated and delivered precisely and continuously.
JP2861780A 1980-03-05 1980-03-05 Measuring device for particle size Pending JPS56124035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2861780A JPS56124035A (en) 1980-03-05 1980-03-05 Measuring device for particle size

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2861780A JPS56124035A (en) 1980-03-05 1980-03-05 Measuring device for particle size

Publications (1)

Publication Number Publication Date
JPS56124035A true JPS56124035A (en) 1981-09-29

Family

ID=12253504

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2861780A Pending JPS56124035A (en) 1980-03-05 1980-03-05 Measuring device for particle size

Country Status (1)

Country Link
JP (1) JPS56124035A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02275342A (en) * 1989-04-18 1990-11-09 Central Res Inst Of Electric Power Ind Apparatus for measuring concentration and particle size of powder
US6263744B1 (en) * 1995-10-12 2001-07-24 California Institute Of Technology Automated mobility-classified-aerosol detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02275342A (en) * 1989-04-18 1990-11-09 Central Res Inst Of Electric Power Ind Apparatus for measuring concentration and particle size of powder
US6263744B1 (en) * 1995-10-12 2001-07-24 California Institute Of Technology Automated mobility-classified-aerosol detector

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