EP0691927A1 - Entladesystem für fliessfähiges gut - Google Patents

Entladesystem für fliessfähiges gut

Info

Publication number
EP0691927A1
EP0691927A1 EP94913553A EP94913553A EP0691927A1 EP 0691927 A1 EP0691927 A1 EP 0691927A1 EP 94913553 A EP94913553 A EP 94913553A EP 94913553 A EP94913553 A EP 94913553A EP 0691927 A1 EP0691927 A1 EP 0691927A1
Authority
EP
European Patent Office
Prior art keywords
seat
outlet
liftable
flowable material
outlet member
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
EP94913553A
Other languages
English (en)
French (fr)
Other versions
EP0691927B1 (de
Inventor
Paulus Egidius Raas
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 BV filed Critical Shell Internationale Research Maatschappij BV
Priority to EP94913553A priority Critical patent/EP0691927B1/de
Publication of EP0691927A1 publication Critical patent/EP0691927A1/de
Application granted granted Critical
Publication of EP0691927B1 publication Critical patent/EP0691927B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
EP94913553A 1993-04-07 1994-04-06 Entladesystem für fliessfähiges gut Expired - Lifetime EP0691927B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94913553A EP0691927B1 (de) 1993-04-07 1994-04-06 Entladesystem für fliessfähiges gut

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP93201039 1993-04-07
EP93201039 1993-04-07
EP94913553A EP0691927B1 (de) 1993-04-07 1994-04-06 Entladesystem für fliessfähiges gut
PCT/EP1994/001088 WO1994022746A1 (en) 1993-04-07 1994-04-06 Flowable material discharge system

Publications (2)

Publication Number Publication Date
EP0691927A1 true EP0691927A1 (de) 1996-01-17
EP0691927B1 EP0691927B1 (de) 1996-10-30

Family

ID=8213753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94913553A Expired - Lifetime EP0691927B1 (de) 1993-04-07 1994-04-06 Entladesystem für fliessfähiges gut

Country Status (10)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ303916B6 (cs) * 2006-05-02 2013-06-26 Výzkumný ústav zemedelské techniky, v.v.i. Zásobník sypkých látek
CN102229203A (zh) * 2011-05-21 2011-11-02 三一重工股份有限公司 搅拌站及卸料位置调整装置
CN106838339A (zh) * 2017-03-17 2017-06-13 合肥固泰自动化有限公司 一种旋转式粉状流量控制阀
CN107738925B (zh) * 2017-10-18 2019-08-06 铜陵市业永兴工贸有限责任公司 一种铜粉秤的给料装置
JP2019182468A (ja) * 2018-04-06 2019-10-24 株式会社大日ハンソー 粉粒体精密供給装置
CN112173444B (zh) * 2020-09-03 2022-06-14 安徽鑫泉米业股份有限公司 一种防潮防虫的大米存储装置及其使用方法
CN112278896B (zh) * 2020-10-12 2022-06-21 中山市福路祥办公设备有限公司 一种环保型碳粉添加装置
CN115448059A (zh) * 2021-06-09 2022-12-09 菲吉乐科(山东)生物科技有限公司 一种基于25-oh-d3的复合维生素生产用上料仪

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333086A1 (de) * 1973-06-29 1975-01-16 Waeschle Maschf Gmbh Abdichtbarer verschluss fuer rohrleitungen und behaelter fuer schuett- oder fliessfaehiges gut
AU544720B2 (en) * 1980-10-09 1985-06-13 Semenenko, I. Controlling discharge from silo
GB8901382D0 (en) * 1989-01-23 1989-03-15 Material Control Eng Ltd Material handling system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9422746A1 *

Also Published As

Publication number Publication date
AU674229B2 (en) 1996-12-12
CN1120830A (zh) 1996-04-17
WO1994022746A1 (en) 1994-10-13
ES2094057T3 (es) 1997-01-01
BR9406207A (pt) 1996-02-06
JPH08508227A (ja) 1996-09-03
CA2160004A1 (en) 1994-10-13
EP0691927B1 (de) 1996-10-30
DE69400823T2 (de) 1997-05-07
DE69400823D1 (de) 1996-12-05
AU6566294A (en) 1994-10-24
KR960701790A (ko) 1996-03-28

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