FR2312437A1 - Control of flow rate from pulverised material container - uses screw conveyor of varying or adjustable pitch positioned below hopper discharge agitators - Google Patents
Control of flow rate from pulverised material container - uses screw conveyor of varying or adjustable pitch positioned below hopper discharge agitatorsInfo
- Publication number
- FR2312437A1 FR2312437A1 FR7516621A FR7516621A FR2312437A1 FR 2312437 A1 FR2312437 A1 FR 2312437A1 FR 7516621 A FR7516621 A FR 7516621A FR 7516621 A FR7516621 A FR 7516621A FR 2312437 A1 FR2312437 A1 FR 2312437A1
- Authority
- FR
- France
- Prior art keywords
- flow rate
- agitators
- varying
- positioned below
- control
- 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.)
- Withdrawn
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
- B65G65/00—Loading or unloading
- B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
- B65G65/34—Emptying devices
- B65G65/40—Devices for emptying otherwise than from the top
- B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screw Conveyors (AREA)
Abstract
The container has a section (b) beneath it containing agitators (c) and through which passes a conveyor screw (d) with a suitable drive (e). The screw is of varying pitch (d1, d2, d3), and a movable tube (f) can be positioned to cover the screw to a greater or lesser degree, so controlling the flow rate. An alternative form uses a conveyor screw formed from a helical spring. Its pitch is uniform along its length, but can be varied by compressing or extending the spring. The spring is retained between end stops on a central shaft, and the material is discharged through a hole in the side of the exit tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7516621A FR2312437A1 (en) | 1975-05-28 | 1975-05-28 | Control of flow rate from pulverised material container - uses screw conveyor of varying or adjustable pitch positioned below hopper discharge agitators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7516621A FR2312437A1 (en) | 1975-05-28 | 1975-05-28 | Control of flow rate from pulverised material container - uses screw conveyor of varying or adjustable pitch positioned below hopper discharge agitators |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2312437A1 true FR2312437A1 (en) | 1976-12-24 |
Family
ID=9155770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7516621A Withdrawn FR2312437A1 (en) | 1975-05-28 | 1975-05-28 | Control of flow rate from pulverised material container - uses screw conveyor of varying or adjustable pitch positioned below hopper discharge agitators |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2312437A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0049315A1 (en) * | 1980-10-08 | 1982-04-14 | K-Tron Soder Ag | Device for conveying and especially metering bulk material |
EP0248733A1 (en) * | 1986-06-04 | 1987-12-09 | Framatome | Charging device for ion exchange resins |
FR2759357A1 (en) * | 1997-02-13 | 1998-08-14 | Solignac Ind Sa | DEVICE FOR THE AUTOMATED SAMPLING OF PRECISE QUANTITIES OF SOLID PRODUCTS (POWDERS ...) WITH VERY VARIOUS PHYSICAL CHARACTERISTICS |
WO2004005170A1 (en) * | 2002-07-09 | 2004-01-15 | Tecnogen S.R.L. | Apparatus for conveying fruits and vegetables |
-
1975
- 1975-05-28 FR FR7516621A patent/FR2312437A1/en not_active Withdrawn
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0049315A1 (en) * | 1980-10-08 | 1982-04-14 | K-Tron Soder Ag | Device for conveying and especially metering bulk material |
EP0248733A1 (en) * | 1986-06-04 | 1987-12-09 | Framatome | Charging device for ion exchange resins |
FR2599641A1 (en) * | 1986-06-04 | 1987-12-11 | Framatome Sa | DEVICE FOR LOADING ION EXCHANGE RESINS |
FR2759357A1 (en) * | 1997-02-13 | 1998-08-14 | Solignac Ind Sa | DEVICE FOR THE AUTOMATED SAMPLING OF PRECISE QUANTITIES OF SOLID PRODUCTS (POWDERS ...) WITH VERY VARIOUS PHYSICAL CHARACTERISTICS |
WO1998035896A1 (en) * | 1997-02-13 | 1998-08-20 | Roxane S.A. | Method for sampling powdery products in measured amounts and installation comprising same |
US6420665B1 (en) | 1997-02-13 | 2002-07-16 | Societe Roxane, S.A. | Method for sampling powdery products in measured amounts and installation comprising same |
WO2004005170A1 (en) * | 2002-07-09 | 2004-01-15 | Tecnogen S.R.L. | Apparatus for conveying fruits and vegetables |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |