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FR2440576A1 - Metering dispenser for granular materials - uses rotational speed control of screw conveyor to control dosing weight - Google Patents

Metering dispenser for granular materials - uses rotational speed control of screw conveyor to control dosing weight

Info

Publication number
FR2440576A1
FR2440576A1 FR7831274A FR7831274A FR2440576A1 FR 2440576 A1 FR2440576 A1 FR 2440576A1 FR 7831274 A FR7831274 A FR 7831274A FR 7831274 A FR7831274 A FR 7831274A FR 2440576 A1 FR2440576 A1 FR 2440576A1
Authority
FR
France
Prior art keywords
control
rotational speed
screw conveyor
granular materials
metering dispenser
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
FR7831274A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7831274A priority Critical patent/FR2440576A1/en
Publication of FR2440576A1 publication Critical patent/FR2440576A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
    • G01G11/08—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers having means for controlling the rate of feed or discharge
    • G01G11/083—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers having means for controlling the rate of feed or discharge of the weight-belt or weigh-auger type
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0605—Control of flow characterised by the use of electric means specially adapted for solid materials
    • G05D7/0611—Control of flow characterised by the use of electric means specially adapted for solid materials characterised by the set value given to the control element

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Screw Conveyors (AREA)

Abstract

The dispenser comprises a siphoning screw (1) which removes material from a hopper (3) equipped with a level sensor (36). The screw rotates in a sleeve (5) and at its extremity (6) in an outlet chamber (7) it is threaded in the reverse direction to concentrate the material into a neck (10) and onto a conveyor (11). The conveyor load is weighed by a sensor (14) while the speed is maintained constant. The sensor output is connected to a regulator (15) which modulates a power line (17) to control a motor (8) which drives the screw at a variable speed through a gearbox (9) to control the weight of material.
FR7831274A 1978-10-30 1978-10-30 Metering dispenser for granular materials - uses rotational speed control of screw conveyor to control dosing weight Pending FR2440576A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7831274A FR2440576A1 (en) 1978-10-30 1978-10-30 Metering dispenser for granular materials - uses rotational speed control of screw conveyor to control dosing weight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7831274A FR2440576A1 (en) 1978-10-30 1978-10-30 Metering dispenser for granular materials - uses rotational speed control of screw conveyor to control dosing weight

Publications (1)

Publication Number Publication Date
FR2440576A1 true FR2440576A1 (en) 1980-05-30

Family

ID=9214489

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7831274A Pending FR2440576A1 (en) 1978-10-30 1978-10-30 Metering dispenser for granular materials - uses rotational speed control of screw conveyor to control dosing weight

Country Status (1)

Country Link
FR (1) FR2440576A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167646A1 (en) * 1984-07-10 1986-01-15 Stetter GmbH Re-treatment installation of waste concrete
FR2572520A1 (en) * 1984-10-31 1986-05-02 Cellier Sa Installation for continuous metering by weighing by weight loss of a loose product
EP0220332A1 (en) * 1985-10-24 1987-05-06 Autotrol Corporation Method and circuit for timing chemical dispenser operation
WO1990007740A1 (en) * 1989-01-09 1990-07-12 Cellier S.A. Apparatus and installation for the continuous dosing of a product in powder form
EP0891935A1 (en) * 1990-11-13 1999-01-20 Bühler Ag Control device for a compactor unit
US6109478A (en) * 1997-10-24 2000-08-29 Eskom Conveying of materials
ES2346385A1 (en) * 2008-02-01 2010-10-14 Beton-Servis, S.L Concrete recovery machine (Machine-translation by Google Translate, not legally binding)
TWI572407B (en) * 2011-12-05 2017-03-01 安科智諾貝爾化學國際公司 Device for dosing an additive solution

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167646A1 (en) * 1984-07-10 1986-01-15 Stetter GmbH Re-treatment installation of waste concrete
FR2572520A1 (en) * 1984-10-31 1986-05-02 Cellier Sa Installation for continuous metering by weighing by weight loss of a loose product
EP0220332A1 (en) * 1985-10-24 1987-05-06 Autotrol Corporation Method and circuit for timing chemical dispenser operation
WO1990007740A1 (en) * 1989-01-09 1990-07-12 Cellier S.A. Apparatus and installation for the continuous dosing of a product in powder form
FR2641625A1 (en) * 1989-01-09 1990-07-13 Consortium Applic Sarl
EP0891935A1 (en) * 1990-11-13 1999-01-20 Bühler Ag Control device for a compactor unit
US6109478A (en) * 1997-10-24 2000-08-29 Eskom Conveying of materials
ES2346385A1 (en) * 2008-02-01 2010-10-14 Beton-Servis, S.L Concrete recovery machine (Machine-translation by Google Translate, not legally binding)
TWI572407B (en) * 2011-12-05 2017-03-01 安科智諾貝爾化學國際公司 Device for dosing an additive solution

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