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WO2008027303A2 - Installation de décharge en continu de sacs de matériau en vrac - Google Patents

Installation de décharge en continu de sacs de matériau en vrac Download PDF

Info

Publication number
WO2008027303A2
WO2008027303A2 PCT/US2007/018707 US2007018707W WO2008027303A2 WO 2008027303 A2 WO2008027303 A2 WO 2008027303A2 US 2007018707 W US2007018707 W US 2007018707W WO 2008027303 A2 WO2008027303 A2 WO 2008027303A2
Authority
WO
WIPO (PCT)
Prior art keywords
installation
bags
bag
bus
ripping
Prior art date
Application number
PCT/US2007/018707
Other languages
English (en)
Other versions
WO2008027303A3 (fr
Inventor
Edward R. Showalter
Original Assignee
Showalter Edward R
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 Showalter Edward R filed Critical Showalter Edward R
Publication of WO2008027303A2 publication Critical patent/WO2008027303A2/fr
Publication of WO2008027303A3 publication Critical patent/WO2008027303A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0008—Opening and emptying bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0075—Emptying systems for flexible intermediate bulk containers [FIBC]
    • B65B69/0083—Emptying systems for flexible intermediate bulk containers [FIBC] using frames whereby the container is only suspended

Definitions

  • This invention relates to bulk material handling equipment and more specifically to bulk bag emptying and discharging systems.
  • Powder and granular materials such as salt, sugar, rice, flour, cement, aggregates, detergents, skimmed milk are commonly carried in so-called "bulk bags” made of synthetic fabric with a moisture-proof liner.
  • the typical capacity of such bags varies from 1 cubic meter (35 cubic feet) to 4 cubic meters (140 cubic feet). They usually weigh from 1 to 2 metric tons.
  • the whole process of conveying a bag and lowering it into the discharging device, opening and shaking the bag, then removing and disposing of the emptied bag is time consuming and labor extensive.
  • Portland cement which used to be processed at limestone and chalk quarries relatively close to use or distribution centers is now manufactured halfway around the globe in countries like the Peoples Republic of China, shipped in bulk bags on cargo ships then repackaged in small bags or otherwise distributed domestically. Concrete aggregates, coal and other such commodities are similarly handled in large numbers of bulk bags.
  • the Invention results from attempts to expedite the discharging of bulk bags and reduce the cost of the labor involved in such a process.
  • Bulk bags are automatically picked up one by one by an overhead closed loop conveyer at a loading station, then carried to a bag unloading station where a lower portion of the bag is ripped open allowing its contents to be dumped into a gathering facility that carries the material into a temporary storage tank from which it can be either repackaged into smaller containers or otherwise disposed of.
  • each bag After ripping off the lower portion, each bag is driven by the conveyer into momentary bumping contacts with barriers in order to dislodge any remaining contents.
  • the empty bags are then carried by the conveyer to another station where they are dumped for disposal.
  • the various OB£rations,are, t conducted while .the bags are passing throughithe a v v arious .stations in a continuous... process.
  • the unloading station and material gathering facilities are contained in an airlock enclosure which prevents escape of vapors or dust particles.
  • the installation for unloading material from bulk bags, gathering said unloaded material and conveying it to a storage tank comprises a bag loading station (BLS), a bag unloading station (BUS), an empty bag dumping station (BDS), a closed loop conveyer (CLC) for transporting said bags along a closed circuit path from said BLS, through said BUS and to said BDS, at the BUS, a bag ripping means (BRM) and a material gathering facility (MGF); wherein said bags are loaded, emptied and dumped as they successively enter said stations.
  • BLS bag loading station
  • BUS bag unloading station
  • BDS empty bag dumping station
  • CLC closed loop conveyer
  • BRM bag ripping means
  • MMF material gathering facility
  • the BRM comprises at least one tool sized and positioned to come in ripping contact with a lower portion of each bag, and the tool comprises a rotating sawing blade having a vertically adjustable support.
  • the BUS further comprises a bag shaking device (BSD) including at least one barrier sized and positioned to momentarily contact said bags as they move past the tool.
  • BSD bag shaking device
  • the BSD comprises a plurality of said barriers disposed at a different heights at spaced apart intervals along said path.
  • the BUS further comprises an airlock enclosure.
  • the MGF comprises a material collecting pit and means for moving material from said pit to said storage tank.
  • the pit comprises a slide under said tool and said BSD, a trough at the end of the slide and, means for conveying material out of said trough to the tank.
  • the installation may also comprise a bag loading station (BLS), a bag unloading station (BUS), an empty bag dumping station (BDS), a closed loop conveyer (CLC) for transporting said bags along a closed circuit path from said BLS, through said BUS and to said BDS, in said BUS, a bag ripping means (BRM) and a material gathering facility (MGF), wherein said bags are loaded, emptied and dumped as they continuously move through said stations, and said BRM comprises at least one tool sized and positioned to come in ripping contact with a lower portion of each of said bags.
  • BLS bag loading station
  • BUS bag unloading station
  • BDS empty bag dumping station
  • CLC closed loop conveyer
  • BRM bag ripping means
  • MMF material gathering facility
  • the BLS comprises means for lifting the bags according to their sizes for ease or attachment to said conveyor.
  • the tool comprises at least two rotating sawing blades positioned astride said lower portion.
  • the BUS further comprises a bag shaking device (BSD) including at least one barrier sized and positioned to momentarily contact the bags as they move past said tool.
  • BSD bag shaking device
  • the BSD further comprises a plurality of said barriers disposed at a different heights at spaced apart intervals along said path.
  • the storage tank comprises a silo having a plurality of delivery chutes.
  • the BUS further comprises an airlock enclosure and means for maintaining a negative air pressure within the enclosure.
  • the MGF comprises a material collecting pit and means for moving material from the pit to the silo.
  • the pit comprises an air slide under said tool and the BSD, a trough at the end of the slide, and means for conveying material out of the trough to the silo.
  • the method for emptying contents of bulk bags comprises, at a bag loading station (BLS), loading said bags on closed loop conveyer passing through a bag unloading station (BUS) and a bag dumping station (BDS); at the BUS, ripping open a lower portion of said bags to unload said contents into a material gathering facility (MGF); at the BDS, removing the bags from the conveyer; performing said steps during continuous progress of the conveyer through the stations, moving said material from the MGF to a storage tank, and performing said step of ripping in an enclosure, and maintaining a negative air pressure inside the enclosure.
  • BUS bag loading station
  • BUS bag unloading station
  • BDS bag dumping station
  • the step of ripping comprises cutting a slit through said lower portion with a rotating blade positioned in the path of the bags.
  • the method further comprises shaking the bags after ripping in the enclosure.
  • the method further comprises dispensing material out of the tank to a plurality of means such as a repackaging plant, a concrete mixer, or a bulk carrier.
  • Fig. 1 is a diagrammatical illustration of the entire bulk bag discharger installation according to the invention
  • Fig. 2 is a perspective view of a bulk bag equipped with a cross-hanger
  • Fig.3 is a partial side view of the conveyer, trolley and bag suspending hook
  • Fig. 4 is an illustration of the bag loading station
  • Fig.5 is a top diagrammatical view of the bag unloading station
  • Fig. 6 is a side diagrammatical view thereof
  • Fig. 7 is a partial, cross-sectional view of the bag unloading station
  • Fig. 8 is a side view of the bag unhooking operation.
  • Fig.9 is a dmgrammgtical view ⁇ oCthe temporary storage facility. , . ⁇ ._ . -. -- Description of the Exemplary Embodiments
  • a bulk bag discharging installation 1 which comprises an overhead closed loop conveyer (CLC) 2 passing through a bag loading station (BLS) 3, a bag unloading station (BUS) 4 and a bag dumping station (BDS) 5.
  • the CLC operates continuously and automatically picks up loaded bulk bags 6 that are sequentially fed to the conveyer, and transports them to the BUS 4.
  • the BUS 4 is surrounded by an airtight enclosure 7 into which is maintained a negative pressure in order to prevent escape of dust particles or vapors into the surroundings.
  • the bags are contacted by a bag ripping means (BRM) 8 which cuts a slit in the lower portion of each bag causing its contents to drop into a material gathering facility (MGF) 9.
  • BRM bag ripping means
  • MMF material gathering facility
  • the bags are then dragged by the conveyer against a bag shaking device (BSD) 10 in order to dislodge any material remaining therein.
  • BSD bag shaking device
  • the conveyer then moves the empty bag 11 to the BDS 5 where it is automatically detached from the conveyer and dumped for disposal.
  • the MGF comprises a pit that lies under the BRM and BSD and the material gathered therein is fed to an extractor (EXT), that is a pump, Archimedes screw or other apparatus 12 for moving the material into a storage tank or silo 13 from which it is later packaged in smaller containers or otherwise distributed.
  • EXT extractor
  • bulk bags are usually provided with a lifting loop 14 at each of the four upper corners or with a stevadoring strap 15 spanning the median portion of two opposite rim sides, and sometimes with both corner loops and strap.
  • each one is equipped with a cross-hanger 16 having each of its four arms engaging one of the corner loops 14.
  • a ring 17 at the top of the vertical central shank 18 is sized to be engaged by one of the hooks 19 hanging from the overhead conveyer 2 as illustrated in Figure 3.
  • the hook is rotatively and swivelingly attached to a trolley 20.
  • the trolley is suspended from a pair of roller bearings 21 riding in the conveyer track 22.
  • the trolley is also linked to the conveyer driving chain 23.
  • the bulk bags 6, filled with material 6a are fed over a roller mat 24 to an hydraulic lift 25 positioned under the conveyer 2 as shown in Figure 4.
  • the lift is adjusted to bring either the hanger loop 17 or the bag spanning strap 15 in the path of the hook 19.
  • a spring clip ring 17a between the strap and the hook 19, as illustrated in Fig.4A may be added.
  • the trolleys and hooks dangling from the conveyer are spaced apart every 7 meters (21 feet) approximately.
  • the conveyer speed is preferably between 30 to 60 centimeters (12 to 24 inches) per second. Accordingly, one bag may be loaded every 10 to 20 seconds approximately.
  • the rate of bag pickup can be slowed by skipping one or more trolleys between bag pickups.
  • the various stations can be spaced at a regular interval along the conveyer 2 that may be momentarily stopped as the bag arrive into a station in order to allow manual loading and unloading.
  • each full bag 6 enters the BUS through an airlock 26 defined between two sets of double doors 27, 28.
  • the bag proceeds through a dumping area 29 where it is first contacted by a pair of ripping tools 30, 31 more specifically illustrated in Figure 7.
  • Each ripping tool comprises a rotary saw whose blade 32, 33 is obliquely oriented and positioned to rip into a lower portion of one of the sides of the bag.
  • the entire widths of its lower side portions are slit by the blades 32, 33 positioned astride the lower part of the bag.
  • Each rotary saw is supported by a vertically movable carriage 34, 35. The vertical position of each blade can thus be adjusted to accommodate various sizes of bulk bags.
  • the blade can slice the entire lower corner of the bag for a more reliable cut in some applications.
  • the saw 30a,30b may alternately be positioned under the bag as shown in dotted lines in Fig. 7 and provided with similar height adjustment mechanisms as the one shown at 34,35. Stationary blades can be used in lieu of rotating ones in some applications.
  • a rod cam 36 projecting laterally from the hook 19 as shown on Figure 3 contacts a barrier 37 extending from the ceiling of the BUS, causing the hook and bag to rotate 90 degrees, and present what used to be the front of the bag to another ripping tool 38
  • That third ripping tool is constituted by another obliquely oriented rotary saw whose blade slits the lower portion of what used to be the front of the bag, causing the entire bottom of the bag to flap down and release the contents of the bag into an underlying pit 39.
  • the third ripping tool 38 is positioned in the path of the bag at the same height as the other two side ripping tools 30 and 31.
  • a series of three barriers 40, 41, 42 are positioned at progressively increasing heights in the path of the bags and sized to come in momentary contact with each bag as it moves past the ripping tools. As the bag is driven against each barrier the resulting shaking action dislodges any remaining contents.
  • the empty bag 11 exits the BUS through a second airlock 43 similar to the entry airlock 26, dragging its bottom flap 44.
  • the pit 39 comprises an auger formed by two slanted walls 45, 46 converging toward a trough housing the EXT 12.
  • the EXT comprises an Archimedes screw 47 driven by an electrical motor 48, and pushing the dumped material into a pipe 49 leading to a temporary storage tank.
  • the walls of the pits are provided with a pair of air slides 50, 51.
  • the air slides comprise an air pump 52, 53 injecting air drawn from the upper ridges of the enclosure 7 surrounding the BUS into a manifold 54, 55 that feeds the pressurized air to an array of small holes 56 in the entire surface of the pit walls 45, 46. These holes have a diameter within a range of about 2 to 5 millimeters (80 to 200 mils).
  • a negative pressure is maintained within the enclosure according to techniques well- known in the art by a powerful blower 66.
  • the trolley suspension passes through a slot in the ceiling of the enclosure.
  • edges of the slot are provided with feathered strips of elastomeric material that minimize leakage of outside air into the enclosure.
  • the empty bag 11 is released by a withdrawing movement of the suspending hook 19 when the roller cam 57 mounted at the end of the shaft 58 projecting from the back of the hook as shown in Figure 3, is captured by a pair of rising ramps 59 that force the hook to swing about its universal joint 60 causing the loop 17 of the hanger to slide off the hook.
  • the empty bag and hanger fall off the conveyer into a disposal bin (not shown on the drawing).
  • the shaft 58 of the cam encounters another barrier similar to the first barrier 37 that causes the hook to shift back 90 degrees toward its original position, ready to pick up the next bag at the BLS.
  • the material moves through the pipe 49 which feeds a silo or other type of temporary storage 13.
  • the material out of the silo can be fed to a bagging plant 61 where it is packaged in smaller bags 62 for the trade or the retail business.
  • the material can also be fed to a concrete mixer 63 that also receives aggregate from an adjacent storage 64, and delivers it to concrete trucks 65.
  • the material can also be delivered in bulk through an alternate chute 66.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Loading Or Unloading Of Vehicles (AREA)

Abstract

Installation (1) et procédé permettant de déverser rapidement et efficacement du matériau contenu dans des sacs de type Bull-Bag dans une station de déchargement entourée d'une enceinte étanche à l'air (7). Les sacs suspendus à un convoyeur à boucle fermée (2) passent sans interruption d'une station de chargement (3) à la station de déchargement (4), puis traversent une station de vidage des sacs (5). Le matériau est déversé sur un aéroglisseur et dirigé vers une trémie, d'où il est acheminé vers un réservoir temporaire (13) avant d'être transvasé dans des récipients plus petits ou distribué d'une quelconque manière.
PCT/US2007/018707 2006-08-25 2007-08-23 Installation de décharge en continu de sacs de matériau en vrac WO2008027303A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/509,936 US20080050211A1 (en) 2006-08-25 2006-08-25 Continuous bulk bag discharging facility
US11/509,936 2006-08-25

Publications (2)

Publication Number Publication Date
WO2008027303A2 true WO2008027303A2 (fr) 2008-03-06
WO2008027303A3 WO2008027303A3 (fr) 2008-09-12

Family

ID=39113630

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/018707 WO2008027303A2 (fr) 2006-08-25 2007-08-23 Installation de décharge en continu de sacs de matériau en vrac

Country Status (2)

Country Link
US (1) US20080050211A1 (fr)
WO (1) WO2008027303A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2704275C1 (ru) * 2019-01-25 2019-10-25 Александр Николаевич Канцуров Приспособление для загрузки биг-бэгов в контейнеры

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9624048B2 (en) * 2013-12-19 2017-04-18 Blastcrete Equipment Company Structures and methods using an integrated ruffle to reduce dust released during emptying of bulk bags
CN104528080A (zh) * 2014-12-22 2015-04-22 安丘博阳机械制造有限公司 大袋拆袋机
US11292706B2 (en) * 2014-12-30 2022-04-05 Edward Showalter Apparatus, systems and methods for preparing and dispensing foods
US9994437B2 (en) * 2014-12-30 2018-06-12 Edward Showalter Apparatus, systems and methods for dispensing drinks, food, and other liquids
US10647563B2 (en) * 2014-12-30 2020-05-12 Edward Showalter Apparatus, systems and methods for dispensing drinks
US11027961B2 (en) 2014-12-30 2021-06-08 Edward Showalter Apparatus, systems and methods for dispensing drinks, food, and other liquids
CN105819044A (zh) * 2016-04-25 2016-08-03 安丘博阳机械制造有限公司 多功能大袋拆袋机
CN105800016A (zh) * 2016-05-19 2016-07-27 苏州舒而适纺织新材料科技有限公司 一种纺织用粉状染料破包装置
US11964791B2 (en) 2020-04-15 2024-04-23 10039322 Canada Inc. Emptying station for a flexible intermediate bulk container
CN112298639A (zh) * 2020-09-29 2021-02-02 泸州川西化玻璃钢有限公司 一种液态物质倾倒装置及其倾倒方法
CN112660533B (zh) * 2020-11-30 2022-10-18 中材国际环境工程（北京）有限公司 一种吨袋自动化运输拆包系统
CN112573122A (zh) * 2020-12-11 2021-03-30 广东瑞丰生态环境科技股份有限公司 环轨式吨包投料系统
CN115783631B (zh) * 2023-01-17 2023-05-02 山东日月升包装有限公司 一种带有检测功能的吨袋输送线

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5400837A (en) * 1993-11-04 1995-03-28 Stone Container Corporation Multi-station filling apparatus and process for filling bulk containers
US5649801A (en) * 1995-12-15 1997-07-22 Abr Corporation Device and method for unloading large bulk bags
US6776197B1 (en) * 2002-09-12 2004-08-17 Decrane Charles E Method and apparatus for a traversing filler spout for solid bulk bag filling station

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611591C3 (de) * 1976-03-19 1979-10-04 Martin Wendel Kg, 6470 Buedingen Vorrichtung zum Aufschneiden und selbsttätigen, kontinuierlichen, staubfreien Entleeren von Säcken
US4134508A (en) * 1976-09-01 1979-01-16 Harry W. Burdett, Jr. Associates Opening and emptying of bags filled with bulk materials
US4401404A (en) * 1979-05-22 1983-08-30 Weaver Richard L Silo structure
DE3914459A1 (de) * 1989-05-02 1990-11-08 Steinecker Maschf Anton Vorrichtung zum entleeren von mit schuettgut gefuellten saecken
GB9027976D0 (en) * 1990-12-22 1991-02-13 Palamatic Handling Syst Bag slitting machine
SE505740C2 (sv) * 1993-08-25 1997-10-06 Gullfiber Ab Förfarande och system för lösfyllnadsisolering
US5442895A (en) * 1994-04-29 1995-08-22 Scope Industries Method and apparatus for unwrapping a wrapped article
JP3302215B2 (ja) * 1995-03-23 2002-07-15 ツカサ工業株式会社 自動開袋装置
US7556465B2 (en) * 2003-07-02 2009-07-07 U.S. Grain Storage System, Inc. Apparatus and method for high throughput particulate matter from large capacity storage bins

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5400837A (en) * 1993-11-04 1995-03-28 Stone Container Corporation Multi-station filling apparatus and process for filling bulk containers
US5649801A (en) * 1995-12-15 1997-07-22 Abr Corporation Device and method for unloading large bulk bags
US6776197B1 (en) * 2002-09-12 2004-08-17 Decrane Charles E Method and apparatus for a traversing filler spout for solid bulk bag filling station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2704275C1 (ru) * 2019-01-25 2019-10-25 Александр Николаевич Канцуров Приспособление для загрузки биг-бэгов в контейнеры

Also Published As

Publication number Publication date
WO2008027303A3 (fr) 2008-09-12
US20080050211A1 (en) 2008-02-28

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