FR2250435A5 - Balance to monitor density of expanded beads - by continually weighing set volumes of sample pellets - Google Patents

Balance to monitor density of expanded beads - by continually weighing set volumes of sample pellets

Info

Publication number
FR2250435A5
FR2250435A5 FR7325861A FR7325861A FR2250435A5 FR 2250435 A5 FR2250435 A5 FR 2250435A5 FR 7325861 A FR7325861 A FR 7325861A FR 7325861 A FR7325861 A FR 7325861A FR 2250435 A5 FR2250435 A5 FR 2250435A5
Authority
FR
France
Prior art keywords
balance
beads
expanded
expanded beads
adjusting
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.)
Expired
Application number
FR7325861A
Other languages
French (fr)
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.)
Henry Et Cie S A
Original Assignee
Henry Et Cie S A
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 Henry Et Cie S A filed Critical Henry Et Cie S A
Priority to FR7325861A priority Critical patent/FR2250435A5/en
Application granted granted Critical
Publication of FR2250435A5 publication Critical patent/FR2250435A5/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3461—Making or treating expandable particles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume

Landscapes

  • Physics & Mathematics (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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A tared balance supporting a small conveyor belt accepts and offloads successive samples of controlled gross volume taken from bulk quantities of low density particulate materials. Detection of deviation of the tared balance from preset limits to activate a control to correct operating conditions where the balance is used as an on-line monitor sampling a production process. It is esp. used for controlling production of expanded polystyrene beads, either by indirectly controlling the quantity of steam admitted to the expansion chamber or by adjusting the feed rate of the pre-expanded beads or by adjusting the volume of the chamber in which the beads are expanded.
FR7325861A 1973-07-13 1973-07-13 Balance to monitor density of expanded beads - by continually weighing set volumes of sample pellets Expired FR2250435A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7325861A FR2250435A5 (en) 1973-07-13 1973-07-13 Balance to monitor density of expanded beads - by continually weighing set volumes of sample pellets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7325861A FR2250435A5 (en) 1973-07-13 1973-07-13 Balance to monitor density of expanded beads - by continually weighing set volumes of sample pellets

Publications (1)

Publication Number Publication Date
FR2250435A5 true FR2250435A5 (en) 1975-05-30

Family

ID=9122590

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7325861A Expired FR2250435A5 (en) 1973-07-13 1973-07-13 Balance to monitor density of expanded beads - by continually weighing set volumes of sample pellets

Country Status (1)

Country Link
FR (1) FR2250435A5 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436983A1 (en) * 1978-09-23 1980-04-18 Hauni Werke Koerber & Co Kg METHOD AND DEVICE FOR CONTINUOUSLY MEASURING THE APPARENT DENSITY OF GRAIN, FIBROUS OR SHEET MATERIAL
US4510808A (en) * 1982-06-02 1985-04-16 Amf Incorporated Apparatus for the continuous measurement of bulk density material such as cut tobacco
DE3933764A1 (en) * 1989-10-10 1991-04-18 Eberhard Jost Foam plastic granule specific weight measurement appts. - has large weighing container filled from above from large suction receptacle
FR2932699A1 (en) * 2008-06-24 2009-12-25 Inst Francais Du Petrole Automatically selecting catalyst extrudates and measuring their tamped density, by selecting based on length, filling into buffer vessel then measuring vessel, tamping and monitoring
CN102735581A (en) * 2012-07-19 2012-10-17 先进储能材料国家工程研究中心有限责任公司 Device and method for lossless and continuous detection of density uniformity of belt-shaped material
DE102019114033A1 (en) * 2019-05-26 2020-11-26 Dieffenbacher GmbH Maschinen- und Anlagenbau Monitoring device for detecting at least one material component in comminuted materials, conveyor system for comminuted materials and methods for monitoring comminuted materials

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436983A1 (en) * 1978-09-23 1980-04-18 Hauni Werke Koerber & Co Kg METHOD AND DEVICE FOR CONTINUOUSLY MEASURING THE APPARENT DENSITY OF GRAIN, FIBROUS OR SHEET MATERIAL
US4510808A (en) * 1982-06-02 1985-04-16 Amf Incorporated Apparatus for the continuous measurement of bulk density material such as cut tobacco
DE3933764A1 (en) * 1989-10-10 1991-04-18 Eberhard Jost Foam plastic granule specific weight measurement appts. - has large weighing container filled from above from large suction receptacle
FR2932699A1 (en) * 2008-06-24 2009-12-25 Inst Francais Du Petrole Automatically selecting catalyst extrudates and measuring their tamped density, by selecting based on length, filling into buffer vessel then measuring vessel, tamping and monitoring
CN102735581A (en) * 2012-07-19 2012-10-17 先进储能材料国家工程研究中心有限责任公司 Device and method for lossless and continuous detection of density uniformity of belt-shaped material
CN102735581B (en) * 2012-07-19 2014-03-26 先进储能材料国家工程研究中心有限责任公司 Device and method for lossless and continuous detection of density uniformity of belt-shaped material
DE102019114033A1 (en) * 2019-05-26 2020-11-26 Dieffenbacher GmbH Maschinen- und Anlagenbau Monitoring device for detecting at least one material component in comminuted materials, conveyor system for comminuted materials and methods for monitoring comminuted materials

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Legal Events

Date Code Title Description
ST Notification of lapse