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WO1994022746A1 - Flowable material discharge system - Google Patents

Flowable material discharge system Download PDF

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Publication number
WO1994022746A1
WO1994022746A1 PCT/EP1994/001088 EP9401088W WO9422746A1 WO 1994022746 A1 WO1994022746 A1 WO 1994022746A1 EP 9401088 W EP9401088 W EP 9401088W WO 9422746 A1 WO9422746 A1 WO 9422746A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
outlet
liftable
flowable material
outlet member
Prior art date
Application number
PCT/EP1994/001088
Other languages
French (fr)
Inventor
Paulus Egidius Raas
Original Assignee
Shell Internationale Research Maatschappij B.V.
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 Shell Internationale Research Maatschappij B.V. filed Critical Shell Internationale Research Maatschappij B.V.
Priority to EP94913553A priority Critical patent/EP0691927B1/en
Priority to DE69400823T priority patent/DE69400823T2/en
Priority to BR9406207A priority patent/BR9406207A/en
Priority to KR1019950704370A priority patent/KR960701790A/en
Priority to JP6521696A priority patent/JPH08508227A/en
Priority to AU65662/94A priority patent/AU674229B2/en
Publication of WO1994022746A1 publication Critical patent/WO1994022746A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/62—Gates or closures having closure members movable out of the plane of the opening
    • B65D90/626—Gates or closures having closure members movable out of the plane of the opening having a linear motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/62—Gates or closures having closure members movable out of the plane of the opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/62—Gates or closures having closure members movable out of the plane of the opening
    • B65D90/623—Gates or closures having closure members movable out of the plane of the opening having a rotational motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2590/00—Component parts, details or accessories for large containers
    • B65D2590/54—Gates or closures
    • B65D2590/542—Gates or closures special sealing means or means for improving sealing

Definitions

  • the invention relates to a flowable material discharge system for controlling the discharge of flowable material such as pellets, viscous materials such as slurries, solids, powder or particles and the like from a store such as a bunker, hopper, reactor, impregnation vessel and the like.
  • flowable material such as pellets, viscous materials such as slurries, solids, powder or particles and the like from a store such as a bunker, hopper, reactor, impregnation vessel and the like.
  • Material such as powder or particulate material and the like is often housed in bulk in a store such as a bunker and the like, from which it is to be discharged periodically.
  • bunkers or hoppers for discharging free flowing materials such as particulate or powdered materials are provided with vertically, liftable cones at their outlet.
  • Such liftable cones open by vertically lifting the cone against the pressure of the flowable ' material to be discharged on the cone.
  • Such known arrangements have several disadvantages. For example, opening is not always possible in case of large vessels or completely filled vessels.
  • Such arrangements are suitable for discharging free flowing materials, but are subject to serious problems with respect to discharging cohesive or sintering materials due to bridging, sintering and clogging of the particles. In that case lifting and vibration of the cone can cause further densification and sintering of the solids and so making flow activation even worse.
  • the invention therefore provides a flowable material discharge system for a bunker which is provided at its outlet with an outlet member and a seat located underneath the said member, characterized in that the said seat is movable from a first (closed) position wherein no discharge gap between the seat and the said member exists, to a second (open) position thus making a discharge gap between the seat and the said member without lifting the member, and vice versa; and further comprising means for moving the said seat, in the desired direction.
  • the outlet member is (vertically) liftable and has e.g. a conical or pyramidal shape.
  • fig. 1 represents schematically a longitudinal section of an advantageous embodiment of the invention
  • fig. 2 represents schematically a longitudinal section of another advantageous embodiment of the invention
  • fig. 3a represents schematically a longitudinal section of still another advantageous embodiment of the invention
  • fig. 3b represents a top view of the embodiment of fig. 3a.
  • bunker should not be understood in a restrictive manner, but also indicates e.g. hoppers, silos, containers, bins or solids process vessels like reactors, impregnation or washing vessels and the like.
  • Such bunkers etc. can e.g. have a conical, cylindrical, pyramidal, prismatic or spherical shape.
  • a flowable material discharge system with a(n) (inverted) cone type seat has been represented.
  • the lower part of a bunker wall 1 with a cone type seat is represented.
  • an outlet member e.g. in the form of a cone or pyramidal shaped body is provided in any suitable manner.
  • a liftable cone 2 is applied as outlet member.
  • the cone 2 can be moved up and down from a first (lower) position 2a to a second (lifted) position 2b and vice versa by any suitable cone actuating means 3 e.g. a pneumatic cylinder with a double piston rod and can be vibrated at any suitable frequency by any suitable cone vibrator 5.
  • the bunker 1 is provided with a movable seat 4 located underneath the cone. The seat can be moved up and down by any suitable seat actuating means 6 from a first (upper) position (4a) to a second (lower) position (4b) and vice versa.
  • the shape of the bottom edge of the cone 2 needs to be such, that in its lower position (2a) it matches the shape of the seat 4 in upper position (4a) in such a way that no gap exists.
  • the cone in the lower position (2a) of the cone and the upper position (4a) of the seat the cone is pressed with its lower edge on the seat. In this situation there is no gap between seat and cone.
  • Reference numeral 7 represents a support frame for supporting the cone actuating means and reference numeral 8 represents the discharge cone of the bunker.
  • the seat may be of any suitable shape, e.g. pyramidal, conical, spherical, flat or tore shape.
  • the seat may consist of a single part as well as of more than one individual or collective moving parts e.g. moving flaps as will be described in connection with figs. 3a, 3b below in more detail.
  • Control mechanisms to position the cone 2 at positions between upper (2b) and lower (2a) position- are useful (not shown for reasons of clarity) .
  • Control mechanisms to position the seat 4 at positions between upper (4a) and lower (4b) position are useful (not shown for reasons of clarity) .
  • a level sensor e.g. a capacitive level sensor underneath the seat to prevent overfilling of the space underneath the seat is useful (not shown for reasons of clarity) .
  • a flowable material discharge system with a flap 5 type seat 4" is shown, wherein also the same reference numerals as in figs. 1 and 2 are used for representing the same members of the system.
  • the seat is multi-sided and in particular 4-sided and comprises collective moving parts.
  • seat flaps 4" are connected in any suitable manner
  • a bar mechanism with over centering provided with a drive shaft 10 has been shown and the said mechanism and flap are represented in open and closed position respectively (4"b, 4"a) . It will be appreciated that any suitable mechanism for moving the seat flaps can be applied
  • Hinge lines 9 and drive shafts 10 have been shown.
  • Reference numeral 6a represents a seat flaps actuating means and reference numeral 11 represents any suitable coupling mechanism
  • Each of the sides hangs on a hinge line and is moved by bar mechanisms with over centering locking.
  • the opening of the seat is adjusted 25 with an adjustable stop in the actuator.
  • the movable seat Upon request of flowable material the movable seat will be opened and solids can flow downwards via the gap between the outlet member and lowered seat.
  • the outlet member can be 30 vibrated to activate and smoothen the flow.
  • the outlet member When due to bridging or sintering no flow takes place, the outlet member can be lifted and/or be vibrated to break the bridge. Vibration can be carried out at high frequencies or at a low frequency by repeatedly up and down movement of the outlet member. A very constant material flow during - 3 - > discharge can be achieved by vibration at high frequencies. The flow will then be very much independent on the particle size and the internal friction. Material flow at very low throughput can be achieved by intermittently vibration of the outlet member. By selecting short successive pause vibration periods, a rather continuous flow can be achieved. During vibration periods relatively high flows outside the unstable flow - no flow region can be adjusted. In this way lifting forces do not need to be very high and flow of de-agglomerated solids is always possible.
  • the outlet member may be lowered again and normal discharge can take place.
  • the seat When the level sensor underneath the seat is activated the seat may be closed or lifted in order to stop or reduce the flow to prevent overfilling below the seat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Coating Apparatus (AREA)
  • Nozzles (AREA)

Abstract

A (liftable, vibratable) outlet member (2) in the outlet of a hopper, bunker, reactor or impregnation vessel and the like. In the closed position the said member rests with its lower edge onto a seat (4). The seat (4) can be moved in downward direction making a discharge gap between it and the outlet member (2) without lifting the member and the flowable material resting on the said member.

Description

FLOWABLE MATERIAL DISCHARGE SYSTEM
The invention relates to a flowable material discharge system for controlling the discharge of flowable material such as pellets, viscous materials such as slurries, solids, powder or particles and the like from a store such as a bunker, hopper, reactor, impregnation vessel and the like. Material such as powder or particulate material and the like is often housed in bulk in a store such as a bunker and the like, from which it is to be discharged periodically.
Known bunkers or hoppers for discharging free flowing materials such as particulate or powdered materials are provided with vertically, liftable cones at their outlet.
Such liftable cones open by vertically lifting the cone against the pressure of the flowable' material to be discharged on the cone. However, such known arrangements have several disadvantages. For example, opening is not always possible in case of large vessels or completely filled vessels.
Further, such arrangements are suitable for discharging free flowing materials, but are subject to serious problems with respect to discharging cohesive or sintering materials due to bridging, sintering and clogging of the particles. In that case lifting and vibration of the cone can cause further densification and sintering of the solids and so making flow activation even worse.
It is therefore an object of the invention to provide a simple bunker discharge system, particularly suitable for discharging cohesive, sintering, bridging or free flowing solid materials with all kinds of particle sizes.
It is another object of the invention to provide a simple bunker discharge system which is suitable for discharge in case of large vessels or completely filled vessels. The invention therefore provides a flowable material discharge system for a bunker which is provided at its outlet with an outlet member and a seat located underneath the said member, characterized in that the said seat is movable from a first (closed) position wherein no discharge gap between the seat and the said member exists, to a second (open) position thus making a discharge gap between the seat and the said member without lifting the member, and vice versa; and further comprising means for moving the said seat, in the desired direction.
Advantageously, the outlet member is (vertically) liftable and has e.g. a conical or pyramidal shape. The invention will now be described in more detail by way of example by reference to the accompanying drawings, in which: fig. 1 represents schematically a longitudinal section of an advantageous embodiment of the invention; and fig. 2 represents schematically a longitudinal section of another advantageous embodiment of the invention; fig. 3a represents schematically a longitudinal section of still another advantageous embodiment of the invention; and fig. 3b represents a top view of the embodiment of fig. 3a.
The term "bunker" should not be understood in a restrictive manner, but also indicates e.g. hoppers, silos, containers, bins or solids process vessels like reactors, impregnation or washing vessels and the like.
Such bunkers etc. can e.g. have a conical, cylindrical, pyramidal, prismatic or spherical shape. Referring to fig. 1 a flowable material discharge system with a(n) (inverted) cone type seat has been represented. The lower part of a bunker wall 1 with a cone type seat is represented. In the bottom of the bunker an outlet member e.g. in the form of a cone or pyramidal shaped body is provided in any suitable manner. In fig. 1 a liftable cone 2 is applied as outlet member.
The cone 2 can be moved up and down from a first (lower) position 2a to a second (lifted) position 2b and vice versa by any suitable cone actuating means 3 e.g. a pneumatic cylinder with a double piston rod and can be vibrated at any suitable frequency by any suitable cone vibrator 5. The bunker 1 is provided with a movable seat 4 located underneath the cone. The seat can be moved up and down by any suitable seat actuating means 6 from a first (upper) position (4a) to a second (lower) position (4b) and vice versa.
The shape of the bottom edge of the cone 2 needs to be such, that in its lower position (2a) it matches the shape of the seat 4 in upper position (4a) in such a way that no gap exists. Thus, in the lower position (2a) of the cone and the upper position (4a) of the seat the cone is pressed with its lower edge on the seat. In this situation there is no gap between seat and cone. Reference numeral 7 represents a support frame for supporting the cone actuating means and reference numeral 8 represents the discharge cone of the bunker.
The seat may be of any suitable shape, e.g. pyramidal, conical, spherical, flat or tore shape. The seat may consist of a single part as well as of more than one individual or collective moving parts e.g. moving flaps as will be described in connection with figs. 3a, 3b below in more detail.
In practice, there is a mechanism to prevent rotation of the liftable cone 2 and movable seat 4 (not shown for reasons of clarity) .
Control mechanisms to position the cone 2 at positions between upper (2b) and lower (2a) position- are useful (not shown for reasons of clarity) .
Control mechanisms to position the seat 4 at positions between upper (4a) and lower (4b) position are useful (not shown for reasons of clarity) .
Further, there can be a suitable mechanism to lock the seat 4 in its closed position to prevent opening due to gravity when the energy for lifting the seat might be broken down (not shown for reasons of clarity) .
Further, a level sensor e.g. a capacitive level sensor underneath the seat to prevent overfilling of the space underneath the seat is useful (not shown for reasons of clarity) .
In fig. 2 a flowable material discharge system with a tore seat 4', having a first (upper) position (4'a) and a second (lower) position (4'b), has been shown. The same reference numbers as in fig. 1 have been used for representing the same members of the system.
In fig. 3a a flowable material discharge system with a flap 5 type seat 4" is shown, wherein also the same reference numerals as in figs. 1 and 2 are used for representing the same members of the system. In this advantageous embodiment the seat is multi-sided and in particular 4-sided and comprises collective moving parts.
Further, the seat flaps 4" are connected in any suitable manner
10 to a hinge line 9. A bar mechanism with over centering provided with a drive shaft 10 has been shown and the said mechanism and flap are represented in open and closed position respectively (4"b, 4"a) . It will be appreciated that any suitable mechanism for moving the seat flaps can be applied
15 In fig. 3b a top view of the flap type seat of fig. 3a is shown.
Hinge lines 9 and drive shafts 10 have been shown.
Reference numeral 6a represents a seat flaps actuating means and reference numeral 11 represents any suitable coupling mechanism
20 such as e.g. (angular) gear boxes coupling the drive shafts 10.
Each of the sides hangs on a hinge line and is moved by bar mechanisms with over centering locking.
Advantageously, there is one common drive with a pneumatic actuator. More advantageously, the opening of the seat is adjusted 25 with an adjustable stop in the actuator.
The operation of the system of the invention is as follows:
Upon request of flowable material the movable seat will be opened and solids can flow downwards via the gap between the outlet member and lowered seat. When required, the outlet member can be 30 vibrated to activate and smoothen the flow. When due to bridging or sintering no flow takes place, the outlet member can be lifted and/or be vibrated to break the bridge. Vibration can be carried out at high frequencies or at a low frequency by repeatedly up and down movement of the outlet member. A very constant material flow during -3-> discharge can be achieved by vibration at high frequencies. The flow will then be very much independent on the particle size and the internal friction. Material flow at very low throughput can be achieved by intermittently vibration of the outlet member. By selecting short successive pause vibration periods, a rather continuous flow can be achieved. During vibration periods relatively high flows outside the unstable flow - no flow region can be adjusted. In this way lifting forces do not need to be very high and flow of de-agglomerated solids is always possible.
As soon as the flowable material is activated the outlet member may be lowered again and normal discharge can take place.
When the level sensor underneath the seat is activated the seat may be closed or lifted in order to stop or reduce the flow to prevent overfilling below the seat.
Various modifications of the present invention will become apparent to those skilled in the art from the foregoing description. Such modifications are intended to fall within the scope of the appended claims.

Claims

C L A I M S
1. A flowable material discharge system for a bunker which is provided at its outlet with an outlet member and a seat located underneath the said member, characterized in that the said seat is movable from a first closed position wherein no discharge gap between the seat and the said member exists, to a second open position thus making a discharge gap between the seat and the said member without lifting the member, and vice versa; and further comprising means for moving the said seat in the desired direction.
2. The system as claimed in claim 1, characterized by means for vibrating the outlet member.
3. The system as claimed in claim 1 or 2, characterized in that the outlet member is (vertically) liftable.
4. The system as claimed in any one of claims 1-3, characterized in that the seat consists of a single movable part.
5. The system as claimed in any one of claims 1-3, characterized in that the seat consists of more than one movable part.
6. The system as claimed in any one of claims 1-5, characterized in that the seat has a pyramidal or conical or spherical or flat or tore shape.
7. The system as claimed in claim 5, characterized in that the seat is multi-sided and in particular 4-sided.
8. The system as claimed in any one of claims 3-7, characterized by means for preventing rotation of the liftable member and seat.
9. The system as claimed in any one of claims 3-8, characterized by means for moving the liftable member in the desired direction.
10. The system as claimed in claim 9, characterized by control means to position the liftable member at positions between a first
(upper) and second (lower) position.
11. The system as claimed in any one of claims 1-10, characterized by control means to position the seat at positions between the first closed and the second open position.
12. The system as claimed in any one of claims 1-11, characterized by means for locking the seat in its closed position.
13. The system as claimed in any one of claims 1-12, characterized by a level sensor underneath the seat.
14. The system as claimed in claim 5 or 7, characterized in that each of the movable parts hangs on a hinge line.
15. The system 'as claimed in claim 14, characterized in that each of the movable parts is moved by a bar mechanism with over centering locking.
16. The system as claimed in claim 15, characterized in that the bars are driven by drive shafts.
17. The system as claimed in claim 16, characterized in that the drive shafts are coupled with each other via gear boxes.
18. The system as claimed in any one of claims 14-17, characterized by one common drive with a pneumatic actuator.
19. The system as claimed in claim 18, characterized in that the opening of the seat is adjusted with an adjustable stop in the actuator.
20. The system as claimed in any one of claims 1-19, characterized in that the outlet member has a conical or pyramidal shape.
PCT/EP1994/001088 1993-04-07 1994-04-06 Flowable material discharge system WO1994022746A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP94913553A EP0691927B1 (en) 1993-04-07 1994-04-06 Flowable material discharge system
DE69400823T DE69400823T2 (en) 1993-04-07 1994-04-06 UNLOADING SYSTEM FOR FLOWABLE GOODS
BR9406207A BR9406207A (en) 1993-04-07 1994-04-06 Drainable material discharge system
KR1019950704370A KR960701790A (en) 1993-04-07 1994-04-06 FLOWABLE MATERIAL DISCHARGE SYSTEM
JP6521696A JPH08508227A (en) 1993-04-07 1994-04-06 Fluid material discharge system
AU65662/94A AU674229B2 (en) 1993-04-07 1994-04-06 Flowable material discharge system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP93201039 1993-04-07
EP93201039.0 1993-04-07

Publications (1)

Publication Number Publication Date
WO1994022746A1 true WO1994022746A1 (en) 1994-10-13

Family

ID=8213753

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/001088 WO1994022746A1 (en) 1993-04-07 1994-04-06 Flowable material discharge system

Country Status (10)

Country Link
EP (1) EP0691927B1 (en)
JP (1) JPH08508227A (en)
KR (1) KR960701790A (en)
CN (1) CN1120830A (en)
AU (1) AU674229B2 (en)
BR (1) BR9406207A (en)
CA (1) CA2160004A1 (en)
DE (1) DE69400823T2 (en)
ES (1) ES2094057T3 (en)
WO (1) WO1994022746A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3351771B2 (en) 1999-09-20 2002-12-03 核燃料サイクル開発機構 Granular material transport container, granular material supply device, and granular material discharging method
CN102275224A (en) * 2011-05-21 2011-12-14 三一重工股份有限公司 Mixing station and discharging position adjusting device
CZ303916B6 (en) * 2006-05-02 2013-06-26 Výzkumný ústav zemedelské techniky, v.v.i. Bulk material silo
CN106838339A (en) * 2017-03-17 2017-06-13 合肥固泰自动化有限公司 A kind of rotary powdery flow control valve
CN116161344A (en) * 2023-02-20 2023-05-26 华能营口仙人岛热电有限责任公司 An automatic lifting vibration device for loosening raw coal bunker materials

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CN107738925B (en) * 2017-10-18 2019-08-06 铜陵市业永兴工贸有限责任公司 A kind of charging gear of copper power scales
JP2019182468A (en) * 2018-04-06 2019-10-24 株式会社大日ハンソー Powder precision feeding device
CN112173444B (en) * 2020-09-03 2022-06-14 安徽鑫泉米业股份有限公司 Moisture-proof insect-proof rice storage device and use method thereof
CN112278896B (en) * 2020-10-12 2022-06-21 中山市福路祥办公设备有限公司 Environment-friendly carbon powder adding device
CN115448059A (en) * 2021-06-09 2022-12-09 菲吉乐科(山东)生物科技有限公司 A feeding device for compound vitamin production based on 25-OH-D3

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333086A1 (en) * 1973-06-29 1975-01-16 Waeschle Maschf Gmbh Valve for pipes and containers for bulk material - has inflatable tube which seals against edge of swivel closure plate
EP0049992A1 (en) * 1980-10-09 1982-04-21 Ivan Semenenko Apparatus for controlling discharge of flowable material from a store thereof, such as a silo
EP0380255A1 (en) * 1989-01-23 1990-08-01 Matcon Limited Material handling system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333086A1 (en) * 1973-06-29 1975-01-16 Waeschle Maschf Gmbh Valve for pipes and containers for bulk material - has inflatable tube which seals against edge of swivel closure plate
EP0049992A1 (en) * 1980-10-09 1982-04-21 Ivan Semenenko Apparatus for controlling discharge of flowable material from a store thereof, such as a silo
EP0380255A1 (en) * 1989-01-23 1990-08-01 Matcon Limited Material handling system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3351771B2 (en) 1999-09-20 2002-12-03 核燃料サイクル開発機構 Granular material transport container, granular material supply device, and granular material discharging method
CZ303916B6 (en) * 2006-05-02 2013-06-26 Výzkumný ústav zemedelské techniky, v.v.i. Bulk material silo
CN102275224A (en) * 2011-05-21 2011-12-14 三一重工股份有限公司 Mixing station and discharging position adjusting device
CN106838339A (en) * 2017-03-17 2017-06-13 合肥固泰自动化有限公司 A kind of rotary powdery flow control valve
CN116161344A (en) * 2023-02-20 2023-05-26 华能营口仙人岛热电有限责任公司 An automatic lifting vibration device for loosening raw coal bunker materials

Also Published As

Publication number Publication date
JPH08508227A (en) 1996-09-03
ES2094057T3 (en) 1997-01-01
KR960701790A (en) 1996-03-28
AU6566294A (en) 1994-10-24
CA2160004A1 (en) 1994-10-13
CN1120830A (en) 1996-04-17
DE69400823T2 (en) 1997-05-07
BR9406207A (en) 1996-02-06
EP0691927A1 (en) 1996-01-17
EP0691927B1 (en) 1996-10-30
AU674229B2 (en) 1996-12-12
DE69400823D1 (en) 1996-12-05

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