GB1343963A - Method and apparatus for measuring dust properties of granular materials - Google Patents

Method and apparatus for measuring dust properties of granular materials

Info

Publication number
GB1343963A
GB1343963A GB1343963DA GB1343963A GB 1343963 A GB1343963 A GB 1343963A GB 1343963D A GB1343963D A GB 1343963DA GB 1343963 A GB1343963 A GB 1343963A
Authority
GB
United Kingdom
Prior art keywords
air
stream
granular materials
enclosure
measured
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
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.)
Procter and Gamble Ltd
Original Assignee
Procter and Gamble 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 Procter and Gamble Ltd filed Critical Procter and Gamble Ltd
Publication of GB1343963A publication Critical patent/GB1343963A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
    • 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
    • G01N15/06—Investigating concentration of particle suspensions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/56—Investigating resistance to wear or abrasion
    • G01N3/565—Investigating resistance to wear or abrasion of granular or particulate material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N2001/222—Other features
    • G01N2001/2223—Other features aerosol sampling devices

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Dispersion Chemistry (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

1343963 Testing granular material PROCTER & GAMBLE Ltd 17 Nov 1971 53474/71 Heading G1S A granular material such as an enzymic detergent is tested by allowing it to fall from a hopper 2 through a slide valve 3 into an enclosure 1, passing a stream of air through the falling material, and collecting any dust entrained in the air stream on a filter 6. The air stream is produced by a suction fan 8 and prefiltered by filters 22. A valve 21 allows the air flow in the enclosure to be regulated and an orifice plate 19 in association with manometer 20 allows the rate of air flow to be measured. The amount of dust collected is measured by weighing and chemical tests may also be carried out.
GB1343963D 1971-11-17 1971-11-17 Method and apparatus for measuring dust properties of granular materials Expired GB1343963A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5347471 1971-11-17

Publications (1)

Publication Number Publication Date
GB1343963A true GB1343963A (en) 1974-01-16

Family

ID=10467951

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1343963D Expired GB1343963A (en) 1971-11-17 1971-11-17 Method and apparatus for measuring dust properties of granular materials

Country Status (1)

Country Link
GB (1) GB1343963A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079621A (en) * 1976-05-28 1978-03-21 E. I. Du Pont De Nemours And Company Apparatus for determining the dust index of a particulate solid
FR2534687A1 (en) * 1982-10-14 1984-04-20 Tripette Renaud DEVICE FOR SAMPLING SAMPLES
GB2181559A (en) * 1985-08-29 1987-04-23 Holmen Chemicals Pellet durability tester
EP0221421A2 (en) * 1983-12-02 1987-05-13 Dr. Hans Heubach GmbH & Co. KG Device for the measurement of the powdering behaviour of powdery and granular materials
GB2250349A (en) * 1989-04-24 1992-06-03 Sutcliffe Speakman Carbons Ltd Dust content monitor
GB2320963A (en) * 1997-01-07 1998-07-08 Borregaard U K Limited Feed pellet durability tester
WO2002061427A1 (en) 2001-01-31 2002-08-08 Novozymes A/S Method of analysing granular composition by fluorescence analysis

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079621A (en) * 1976-05-28 1978-03-21 E. I. Du Pont De Nemours And Company Apparatus for determining the dust index of a particulate solid
FR2534687A1 (en) * 1982-10-14 1984-04-20 Tripette Renaud DEVICE FOR SAMPLING SAMPLES
EP0106765A1 (en) * 1982-10-14 1984-04-25 TRIPETTE & RENAUD Société Anonyme: Sampling device
EP0221421A2 (en) * 1983-12-02 1987-05-13 Dr. Hans Heubach GmbH & Co. KG Device for the measurement of the powdering behaviour of powdery and granular materials
EP0221421A3 (en) * 1983-12-02 1988-03-16 Dr. Hans Heubach Gmbh & Co. Kg Device for the measurement of the powdering behaviour of powdery and granular materials
GB2181559A (en) * 1985-08-29 1987-04-23 Holmen Chemicals Pellet durability tester
GB2181559B (en) * 1985-08-29 1989-08-09 Holmen Chemicals Pellet durability tester
GB2250349A (en) * 1989-04-24 1992-06-03 Sutcliffe Speakman Carbons Ltd Dust content monitor
GB2320963A (en) * 1997-01-07 1998-07-08 Borregaard U K Limited Feed pellet durability tester
WO2002061427A1 (en) 2001-01-31 2002-08-08 Novozymes A/S Method of analysing granular composition by fluorescence analysis
EP1358483A1 (en) * 2001-01-31 2003-11-05 Novozymes A/S Method of analysing granular composition by fluorescence analysis

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees