JPS5716349A - Method and apparatus for measuring pellet strength - Google Patents

Method and apparatus for measuring pellet strength

Info

Publication number
JPS5716349A
JPS5716349A JP9062980A JP9062980A JPS5716349A JP S5716349 A JPS5716349 A JP S5716349A JP 9062980 A JP9062980 A JP 9062980A JP 9062980 A JP9062980 A JP 9062980A JP S5716349 A JPS5716349 A JP S5716349A
Authority
JP
Japan
Prior art keywords
pellets
powder
rollers
strength
attraction force
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.)
Granted
Application number
JP9062980A
Other languages
Japanese (ja)
Other versions
JPS637345B2 (en
Inventor
Takao Sato
Koji Mikawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9062980A priority Critical patent/JPS5716349A/en
Publication of JPS5716349A publication Critical patent/JPS5716349A/en
Publication of JPS637345B2 publication Critical patent/JPS637345B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/16—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using pocketed rollers, e.g. two co-operating pocketed rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses
    • B30B15/302—Feeding material in particulate or plastic state to moulding presses
    • B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/14—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Glanulating (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE:To measure strength of pellets in a short time by receiving the ultrasonic signal generated in the granulation process while the pellets are produced. CONSTITUTION:Dried powder of raw material is precompressed by a screw feeder 3 and supplied to rollers 1, 1'. The roller 1' is always given pressure by a spring 5. On the surface of the rollers many pockets 10, which have the same shape as pellets are expected to have, are provided and the powder is compressed into pellets in those pockets. Compression pressure. The powder receives a monotonously increasing compression pressure and shearing stress, large enough to overcome the slipping force of granules, attraction force between molecules and attraction force of adsorption layer. These pressures and stresses given to the pellets generate ultrasonic waves, which are transformed into electric signals by receiving heads 8a-8d and the signals are received by brushes 7a-7d and a slip-ring 6. The strength of the pellets can be measured by observing amplitude, and the frequency components or the frequency of the generation of the ultrasonic wave.
JP9062980A 1980-07-04 1980-07-04 Method and apparatus for measuring pellet strength Granted JPS5716349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9062980A JPS5716349A (en) 1980-07-04 1980-07-04 Method and apparatus for measuring pellet strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9062980A JPS5716349A (en) 1980-07-04 1980-07-04 Method and apparatus for measuring pellet strength

Publications (2)

Publication Number Publication Date
JPS5716349A true JPS5716349A (en) 1982-01-27
JPS637345B2 JPS637345B2 (en) 1988-02-16

Family

ID=14003769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9062980A Granted JPS5716349A (en) 1980-07-04 1980-07-04 Method and apparatus for measuring pellet strength

Country Status (1)

Country Link
JP (1) JPS5716349A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821853U (en) * 1981-08-03 1983-02-10 株式会社日立製作所 Ultrasonic flaw detection equipment for pressure vessels
EP0214633A1 (en) 1985-09-07 1987-03-18 Hitachi Construction Machinery Co., Ltd. Control system for hydraulically-operated construction machinery
JP2020500101A (en) * 2016-10-24 2020-01-09 ゲルタイス，パウル Method and apparatus for controlling a dry granulation process

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01214731A (en) * 1988-02-23 1989-08-29 Banzai:Kk Testing apparatus of vehicle
JPH0475940U (en) * 1990-11-13 1992-07-02
DE19604700C1 (en) * 1996-02-09 1997-05-07 Geesthacht Gkss Forschung Organic acid production process uses Donnan-dialysis anion exchanger-membrane

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821853U (en) * 1981-08-03 1983-02-10 株式会社日立製作所 Ultrasonic flaw detection equipment for pressure vessels
JPH0213970Y2 (en) * 1981-08-03 1990-04-17
EP0214633A1 (en) 1985-09-07 1987-03-18 Hitachi Construction Machinery Co., Ltd. Control system for hydraulically-operated construction machinery
JP2020500101A (en) * 2016-10-24 2020-01-09 ゲルタイス，パウル Method and apparatus for controlling a dry granulation process
US11420212B2 (en) 2016-10-24 2022-08-23 Paul Gerteis Methods and devices for controlling the dry granulation process

Also Published As

Publication number Publication date
JPS637345B2 (en) 1988-02-16

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