GB2012438A - Method and Apparatus for Pneumatically Charging a Scale with Flowable Materials - Google Patents

Method and Apparatus for Pneumatically Charging a Scale with Flowable Materials

Info

Publication number
GB2012438A
GB2012438A GB7849715A GB7849715A GB2012438A GB 2012438 A GB2012438 A GB 2012438A GB 7849715 A GB7849715 A GB 7849715A GB 7849715 A GB7849715 A GB 7849715A GB 2012438 A GB2012438 A GB 2012438A
Authority
GB
United Kingdom
Prior art keywords
scale
container
air stream
flow
weight
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
GB7849715A
Other versions
GB2012438B (en
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.)
Waeschle Maschinenfabrik GmbH
Original Assignee
Waeschle Maschinenfabrik GmbH
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 Waeschle Maschinenfabrik GmbH filed Critical Waeschle Maschinenfabrik GmbH
Publication of GB2012438A publication Critical patent/GB2012438A/en
Application granted granted Critical
Publication of GB2012438B publication Critical patent/GB2012438B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/66—Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/24—Gas suction systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G13/00—Weighing apparatus with automatic feed or discharge for weighing-out batches of material
    • G01G13/02—Means for automatically loading weigh pans or other receptacles, e.g. disposable containers, under control of the weighing mechanism
    • G01G13/04—Means for automatically loading weigh pans or other receptacles, e.g. disposable containers, under control of the weighing mechanism involving dribble-feed means controlled by the weighing mechanism to top up the receptacle to the target weight
    • G01G13/10—Means for automatically loading weigh pans or other receptacles, e.g. disposable containers, under control of the weighing mechanism involving dribble-feed means controlled by the weighing mechanism to top up the receptacle to the target weight wherein the main feed is effected by pneumatic conveying means, e.g. by fluidised feed of granular material
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/035—Controlling ratio of two or more flows of fluid or fluent material with auxiliary non-electric power
    • G05D11/04—Controlling ratio of two or more flows of fluid or fluent material with auxiliary non-electric power by sensing weight of individual components, e.g. gravimetric procedure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Ship Loading And Unloading (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

Flowable material is entrained in an air stream and conveyed into the container 1 of a container-type scale. When the scale 2 senses that the weight of admitted material is approaching the preset desired weight it causes a reduction in the material flow. This lighter flow then continues until the preset weight is reached, at which time the admission of material into the air stream is terminated. The air stream, however, continues to flow until all or substantially all material still present in the conduit at this time has been conveyed into the container to be weighed along with the remainder of the container contents. <IMAGE>
GB7849715A 1977-12-30 1978-12-21 Method and apparatus for pneumatically charging a scale with flowable materials Expired GB2012438B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772759009 DE2759009A1 (en) 1977-12-30 1977-12-30 METHOD AND SUCTION CONVEYOR FOR LOADING A CONTAINER SCALE WITH SCHUETTGUETERN FROM MULTIPLE STORAGE CONTAINERS

Publications (2)

Publication Number Publication Date
GB2012438A true GB2012438A (en) 1979-07-25
GB2012438B GB2012438B (en) 1982-07-21

Family

ID=6027793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7849715A Expired GB2012438B (en) 1977-12-30 1978-12-21 Method and apparatus for pneumatically charging a scale with flowable materials

Country Status (12)

Country Link
JP (1) JPS5497982A (en)
BE (1) BE873130A (en)
CA (1) CA1103287A (en)
DE (1) DE2759009A1 (en)
DK (1) DK571278A (en)
FR (1) FR2413297A1 (en)
GB (1) GB2012438B (en)
IT (1) IT1102447B (en)
LU (1) LU80732A1 (en)
NL (1) NL7812210A (en)
SE (1) SE7812833L (en)
ZA (1) ZA787318B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478172A (en) * 1992-04-13 1995-12-26 Keihin Ryoko Concrete Ind. Corp. Apparatus for feeding ultrafine powder in quantitative batch operation
EP1079214A3 (en) * 1999-08-23 2001-11-21 Dynamic Air, Inc. Vibratory feeder
WO2006005902A1 (en) * 2004-07-14 2006-01-19 Halliburton Energy Services, Inc. Automated control method for dry bulk material transfer in a cement blending plant

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524440A1 (en) * 1982-04-02 1983-10-07 Roth Cie Ets Pneumatic grain transporter with link tube drawing from various bins - uses valve to stop grain intake and maintain air flow removing residue from feed
DE3413757A1 (en) * 1984-04-12 1985-10-24 Kurt F. 8942 Ottobeuren Lipfert Process and apparatus for feeding a container with powdery materials
DE3538900A1 (en) * 1985-11-02 1987-05-07 Bennigsen Mackiewicz A Von DEVICE FOR WEIGHING GRAIN OR DUST-SHAPED GOODS
FR2604694A1 (en) * 1986-10-06 1988-04-08 Esun Sa Ets Method and device for transferring foodstuffs by means of vacuum
DE4133870C2 (en) * 1991-10-12 1993-12-23 Hahn Verfahrenstech Feeding device for pneumatic suction conveyor systems
HRP930232A2 (en) * 1993-02-25 1996-08-31 Davor Rodin Process for obtaining a precise weight of powdered material on packing machines with pneumatic conveyor
DE4445463A1 (en) * 1994-10-26 1996-05-02 Leopold Jungbauer Weighing of loose material carried in air stream

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2334360B2 (en) * 1973-07-06 1977-04-07 Waeschle Maschinenfabrik Gmbh, 7980 Ravensburg PROCESS AND EQUIPMENT FOR PNEUMATIC FEEDING OF FINE POWDER, FOR APPROPRIATION OF PRODUCTS INCLINED ON THE PIPE WALL
NL7414152A (en) * 1973-12-08 1975-06-10 Zimmermann Azo Maschf IMPROVEMENT OF A WEIGHING DEVICE FOR A PNEUMATIC TRANSPORT INSTALLATION.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5478172A (en) * 1992-04-13 1995-12-26 Keihin Ryoko Concrete Ind. Corp. Apparatus for feeding ultrafine powder in quantitative batch operation
EP1079214A3 (en) * 1999-08-23 2001-11-21 Dynamic Air, Inc. Vibratory feeder
US6417464B2 (en) 1999-08-23 2002-07-09 Dynamic Air, Inc. Extended range feeders
WO2006005902A1 (en) * 2004-07-14 2006-01-19 Halliburton Energy Services, Inc. Automated control method for dry bulk material transfer in a cement blending plant
US7488141B2 (en) 2004-07-14 2009-02-10 Halliburton Energy Services, Inc. Automated control methods for dry bulk material transfer

Also Published As

Publication number Publication date
BE873130A (en) 1979-04-17
IT1102447B (en) 1985-10-07
LU80732A1 (en) 1979-04-13
JPS5497982A (en) 1979-08-02
CA1103287A (en) 1981-06-16
FR2413297A1 (en) 1979-07-27
DE2759009A1 (en) 1979-07-05
IT7831330A0 (en) 1978-12-27
NL7812210A (en) 1979-07-03
ZA787318B (en) 1980-01-30
GB2012438B (en) 1982-07-21
SE7812833L (en) 1979-07-01
DK571278A (en) 1979-07-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee