GB2180227A - A storage bunker - Google Patents

A storage bunker Download PDF

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Publication number
GB2180227A
GB2180227A GB08522731A GB8522731A GB2180227A GB 2180227 A GB2180227 A GB 2180227A GB 08522731 A GB08522731 A GB 08522731A GB 8522731 A GB8522731 A GB 8522731A GB 2180227 A GB2180227 A GB 2180227A
Authority
GB
United Kingdom
Prior art keywords
bunker
receptacle
conveyor
storage
towards
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
GB08522731A
Other versions
GB8522731D0 (en
GB2180227B (en
Inventor
Maurice Finch
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.)
Henley Burrowes and Co Ltd
Original Assignee
Henley Burrowes and Co Ltd
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 Henley Burrowes and Co Ltd filed Critical Henley Burrowes and Co Ltd
Priority to GB8522731A priority Critical patent/GB2180227B/en
Publication of GB8522731D0 publication Critical patent/GB8522731D0/en
Priority claimed from EP87302293A external-priority patent/EP0282662A1/en
Priority to US07/028,704 priority patent/US4838750A/en
Publication of GB2180227A publication Critical patent/GB2180227A/en
Application granted granted Critical
Publication of GB2180227B publication Critical patent/GB2180227B/en
Expired legal-status Critical Current

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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
    • B65G65/42—Devices for emptying otherwise than from the top using belt or chain conveyors
    • 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
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34—Devices for discharging articles or materials from conveyor 
    • B65G47/46—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points
    • B65G47/51—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination
    • B65G47/5195—Devices for discharging articles or materials from conveyor  and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for materials in bulk

Abstract

A storage bunker for substantially dry and loose material such as shredded paper waste has a receptacle (10) and a conveyor (16,18) feeding material over a fixed plate (14) broken at (21) to permit the material to fall into the receptacle. The return run of conveyor (16) compacts material towards the other end of the receptacle, and the whole mass of material once the receptacle is filled is driven by conveyor (25) towards an outlet, with material being stripped from the mass by an inclined toothed conveyor (26) for collection by a troughed conveyor (28). <IMAGE>

Description

SPECIFICATION A storage bunker This invention concerns a storage bunkerfor substantially dry and loose materials such as shreaded paper waste, and provides a receptacle in which the material may be stored and at least partially compacted and withdrawn when required forfurtherhandling and disposal.
Many devices are known for storing materials such as shreaded paper waste. These include a storage bin having a number of conveying screws at its base operating in different directions to keep the material in motion and preventing it from bridging atthe bottom ofthe bin. Another device is a storage silo with a tapering hopper at its base and having a number of screw conveyors projecting into the waste to discharge it from the silo. A further known device comprises a scraper conveyor which collects material and deposits it into a bunker having screw conveyors at the base for discharging the material.
The principal disadvantage with these kinds of known storage facility is that they include no means for compacting the material thus to maximise the storage capacity.
An object of the present invention is to provide a storage bunker which is capable of storing and compacting large volumes of materials.
According to the present invention there is provided a storage bunkerfor substantially dry and loose materials such as shreaded paper waste, comprising a receptacle having its longitudinal axis ormajordimension generally horizontal, meansfor feeding material to the bunker at one end thereof, means within the bunker for feeding accumulated material therein towards the other end, further means within the bunker in a base region thereof for conveying compacted material forwardly towards said one end at which the material is discharged from the bunker by further conveying means.
An embodiment of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which: Figure lisa partially-sectioned elevation of a storage bunker made in accordance with the invention; and Figure2is a vertical section along line ll-ll of Figure 1.
The bunker comprises a receptacle generally indicated at 10 and being typically some 40 metres long and about 6 metres high internally. An input conveyor 11 carries materials such as shreaded paper waste to be stored and compacted into a chute 12 containing a pivotable and reciprocating distributor flap 13 which spreads the material substantially evenly across a plate 14which extends longitudinallyoverthetop ofthe bunker lOtoform a ceiling thereto. A scraping and levelling conveyor 15 having a number of spaced upstanding flights 16 are driven forwardly in the direction of arrow 17 by a pair of driven chains 18. The flights 16 serveto drivethe materialforwardlyon plate l4which,duetothe restricted height between the plate and a fixed top 20, causes the material to assume a substantially constant depth.
At 2lathe plate 14 is broken to permit access to the interior22ofthebunker,andatthispointthe material is deposited by gravity into the bunker.
Accumulated material within the bunkerfillsto a height at which it is driven backwards along the bunkerbythe return run offlights 16. Thus compaction takes place to a level of between 11/2-1 to 4-1.
Continuously or intermittently, substantially the whole body of material within the bunker is carried forwards by a belt plate conveyor 25 forming a floor to the bunker interior 22, towards the discharge end, the material being "stripped" off the compacted mass thereof by the bottom run of an inclined toothed conveyor belt 26 moving in the direction of arrow 27, this conveyor serving to define a wedge-likefrontend of the bunker space. The material stripped from the bunker by conveyor 26 may be deposited onto a troughed conveyor 28 or any other suitable means for transferring the material from the output end ofthe bunkerto, say, an incinerator or pelleting press.
It will be seen from Figure 2 that the slide walls 29 of the bunker diverge towards its base thus ensuring that material will always descend towards belt plate conveyor 25.
The conveyor25 may be driven intermittently or continuously and at variable speed depending upon the required discharge rate. Similarly, the speed at which conveyorflights 16 are driven may be varied during operation to control the feed rate to the bunker. For this purpose, proximity devices may be provided at spaced positions along the bunker and throughout its height thus to control the input and output of materials.
Liquor sprays may be incorporated close to material input point 21 to control the condition ofthe material entering the bunker.
It is expected that a bunker having the dimensions mentioned above will be capable of containing some 25 to 35 tonnes of material by virtue of the compaction provided. Drive motors for conveyors 11,15,25 and 26 may be of a low horsepower rating since none drives more than a light load. The system is, therefore, inexpensiveto operate and maintain.
1. Astorage bunkerforsubstantiallydryand loose materials such as sh readed paper waste, comprising a receptacle having its longitudinal axis or major dimension generally horizontal, means for feeding the material to the receptacle at one end thereof, means within the receptacle forfeeding material accumulated therein towards the other end thereof, further means within the receptacle in a base region thereoffor conveying compacted material forwardly towards said one end at which the material is discharged from the receptacle by an output conveyor.
2. Astorage bunker according to Claim 1, wherein said means for feeding material to the receptacle comprises a plate extending longitudinally overthetop ofthe receptacletoform a
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (11)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A storage bunker This invention concerns a storage bunkerfor substantially dry and loose materials such as shreaded paper waste, and provides a receptacle in which the material may be stored and at least partially compacted and withdrawn when required forfurtherhandling and disposal. Many devices are known for storing materials such as shreaded paper waste. These include a storage bin having a number of conveying screws at its base operating in different directions to keep the material in motion and preventing it from bridging atthe bottom ofthe bin. Another device is a storage silo with a tapering hopper at its base and having a number of screw conveyors projecting into the waste to discharge it from the silo. A further known device comprises a scraper conveyor which collects material and deposits it into a bunker having screw conveyors at the base for discharging the material. The principal disadvantage with these kinds of known storage facility is that they include no means for compacting the material thus to maximise the storage capacity. An object of the present invention is to provide a storage bunker which is capable of storing and compacting large volumes of materials. According to the present invention there is provided a storage bunkerfor substantially dry and loose materials such as shreaded paper waste, comprising a receptacle having its longitudinal axis ormajordimension generally horizontal, meansfor feeding material to the bunker at one end thereof, means within the bunker for feeding accumulated material therein towards the other end, further means within the bunker in a base region thereof for conveying compacted material forwardly towards said one end at which the material is discharged from the bunker by further conveying means. An embodiment of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which: Figure lisa partially-sectioned elevation of a storage bunker made in accordance with the invention; and Figure2is a vertical section along line ll-ll of Figure 1. The bunker comprises a receptacle generally indicated at 10 and being typically some 40 metres long and about 6 metres high internally. An input conveyor 11 carries materials such as shreaded paper waste to be stored and compacted into a chute 12 containing a pivotable and reciprocating distributor flap 13 which spreads the material substantially evenly across a plate 14which extends longitudinallyoverthetop ofthe bunker lOtoform a ceiling thereto. A scraping and levelling conveyor 15 having a number of spaced upstanding flights 16 are driven forwardly in the direction of arrow 17 by a pair of driven chains 18. The flights 16 serveto drivethe materialforwardlyon plate l4which,duetothe restricted height between the plate and a fixed top 20, causes the material to assume a substantially constant depth. At 2lathe plate 14 is broken to permit access to the interior22ofthebunker,andatthispointthe material is deposited by gravity into the bunker. Accumulated material within the bunkerfillsto a height at which it is driven backwards along the bunkerbythe return run offlights 16. Thus compaction takes place to a level of between 11/2-1 to 4-1. Continuously or intermittently, substantially the whole body of material within the bunker is carried forwards by a belt plate conveyor 25 forming a floor to the bunker interior 22, towards the discharge end, the material being "stripped" off the compacted mass thereof by the bottom run of an inclined toothed conveyor belt 26 moving in the direction of arrow 27, this conveyor serving to define a wedge-likefrontend of the bunker space. The material stripped from the bunker by conveyor 26 may be deposited onto a troughed conveyor 28 or any other suitable means for transferring the material from the output end ofthe bunkerto, say, an incinerator or pelleting press. It will be seen from Figure 2 that the slide walls 29 of the bunker diverge towards its base thus ensuring that material will always descend towards belt plate conveyor 25. The conveyor25 may be driven intermittently or continuously and at variable speed depending upon the required discharge rate. Similarly, the speed at which conveyorflights 16 are driven may be varied during operation to control the feed rate to the bunker. For this purpose, proximity devices may be provided at spaced positions along the bunker and throughout its height thus to control the input and output of materials. Liquor sprays may be incorporated close to material input point 21 to control the condition ofthe material entering the bunker. It is expected that a bunker having the dimensions mentioned above will be capable of containing some 25 to 35 tonnes of material by virtue of the compaction provided. Drive motors for conveyors 11,15,25 and 26 may be of a low horsepower rating since none drives more than a light load. The system is, therefore, inexpensiveto operate and maintain. CLAIMS
1. Astorage bunkerforsubstantiallydryand loose materials such as sh readed paper waste, comprising a receptacle having its longitudinal axis or major dimension generally horizontal, means for feeding the material to the receptacle at one end thereof, means within the receptacle forfeeding material accumulated therein towards the other end thereof, further means within the receptacle in a base region thereoffor conveying compacted material forwardly towards said one end at which the material is discharged from the receptacle by an output conveyor.
2. Astorage bunker according to Claim 1, wherein said means for feeding material to the receptacle comprises a plate extending longitudinally overthetop ofthe receptacletoform a ceiling thereto and a scraping and levelling conveyor having spaced upstanding flights driven in one direction towards said one end of the receptacle, there being a zone of restricted height between the plate and a fixed top above the latter, through which said flights travel to convey the material thus to cause the material to assume a substantiaily constant depth, said plate being broken at said one end ofthe receptacle to permit the material to enter the interiorthereof.
3. A storage bunker according Claim 1 or Claim 2, wherein said means within the receptacleforfeeding accumulated material towards the other end thereof is provided by a return run of said feeding means with spaced flights moving in one direction towards said other end within the receptacle.
4. A storage bunker according to any preceding claim, wherein said further means for conveying compacted material, comprises a conveyorforming a floor to the receptacle interior and driven towards said one end of the receptacle.
5. A storage bunker according to any preceding Claim, wherein said output conveyor comprises a lower run of an inclined toothed conveyor disposed so as to define a wedge-likefrontend of the receptacle and serving to strip material from a compacted mass thereof driven forwardly within the latter.
6. A storage bunker according to Claim 4, wherein compacted material conveyor is optionally driven intermittently or continuously and at a variable speed according to the required discharge rate.
7. Astorage bunker according to Claim 2,.
wherein the speed at which said scraping and levelling conveyor is driven may be varied to control the feed rate of material to the receptacle, sensing means being provided to detect the quantity of material within the receptacle and to control the input and output of materials accordingly.
8. A storage bunker according to any preceding claim, including liquor sprays disposed close to the material input point to control the condition of material entering the receptacle.
9. A storage bunker according to any preceding claim, wherein said receptacle includes a pair of opposed longitudinal sidewalls diverging towards its base.
10. A storage bunker according to any preceding claim, including an input conveyor feeding an inlet chute in which there is positioned a pivotable and reciprocating distributorflapto spread material substantially evenly across the feeding means.
11. Astoragebunkersubstantiallyas hereinbefore described with reference to and as illustrated in the accompanying drawings.
GB8522731A 1985-09-13 1985-09-13 A storage bunker Expired GB2180227B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8522731A GB2180227B (en) 1985-09-13 1985-09-13 A storage bunker
US07/028,704 US4838750A (en) 1985-09-13 1987-03-20 Storage bunker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8522731A GB2180227B (en) 1985-09-13 1985-09-13 A storage bunker
EP87302293A EP0282662A1 (en) 1987-03-18 1987-03-18 A storage bunker

Publications (3)

Publication Number Publication Date
GB8522731D0 GB8522731D0 (en) 1985-10-16
GB2180227A true GB2180227A (en) 1987-03-25
GB2180227B GB2180227B (en) 1989-09-20

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Family Applications (1)

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GB8522731A Expired GB2180227B (en) 1985-09-13 1985-09-13 A storage bunker

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GB (1) GB2180227B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282662A1 (en) * 1987-03-18 1988-09-21 Henley Burrowes And Company Limited A storage bunker
US5040941A (en) * 1989-01-27 1991-08-20 Griffin & Company Automatic storage system
GB2303115A (en) * 1995-07-12 1997-02-12 Turner Grain & Feed Milling Li Loading Bulk Material
EP1101716A1 (en) * 1999-11-18 2001-05-23 Ar. Val. Storage- and feeding container controlled by a sorting installation for household and/or industrial refuse

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB375227A (en) * 1932-01-25 1932-06-23 Joseph Radermacher Improvements in or relating to vehicles for conveying loose materials
GB580706A (en) * 1944-07-19 1946-09-17 Samuel Mercer Improvements in or relating to conveyors
GB681025A (en) * 1950-03-15 1952-10-15 Templewood Engineering Company Improvements relating to the drying of material such as grass
GB698091A (en) * 1950-08-08 1953-10-07 James Nicholas Wilson Improvements in or relating to means for the transport and delivery of finely divided materials
GB992092A (en) * 1962-08-16 1965-05-12 Fritz Stille Agricultural multi-purpose vehicle
GB1062487A (en) * 1964-06-19 1967-03-22 Cowlishaw Walker & Co Ltd Improvements in or relating to storage apparatus in conveyor systems
GB1092148A (en) * 1965-03-25 1967-11-22 Arthur Walter Nelson Refuse trucks

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB375227A (en) * 1932-01-25 1932-06-23 Joseph Radermacher Improvements in or relating to vehicles for conveying loose materials
GB580706A (en) * 1944-07-19 1946-09-17 Samuel Mercer Improvements in or relating to conveyors
GB681025A (en) * 1950-03-15 1952-10-15 Templewood Engineering Company Improvements relating to the drying of material such as grass
GB698091A (en) * 1950-08-08 1953-10-07 James Nicholas Wilson Improvements in or relating to means for the transport and delivery of finely divided materials
GB992092A (en) * 1962-08-16 1965-05-12 Fritz Stille Agricultural multi-purpose vehicle
GB1062487A (en) * 1964-06-19 1967-03-22 Cowlishaw Walker & Co Ltd Improvements in or relating to storage apparatus in conveyor systems
GB1092148A (en) * 1965-03-25 1967-11-22 Arthur Walter Nelson Refuse trucks

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0282662A1 (en) * 1987-03-18 1988-09-21 Henley Burrowes And Company Limited A storage bunker
US5040941A (en) * 1989-01-27 1991-08-20 Griffin & Company Automatic storage system
GB2303115A (en) * 1995-07-12 1997-02-12 Turner Grain & Feed Milling Li Loading Bulk Material
EP1101716A1 (en) * 1999-11-18 2001-05-23 Ar. Val. Storage- and feeding container controlled by a sorting installation for household and/or industrial refuse
FR2801293A1 (en) * 1999-11-18 2001-05-25 Arbor Sa CONTROLLED STORAGE AND SUPPLY BUCKET OF A HOUSEHOLD AND / OR INDUSTRIAL WASTE SORTING PLANT

Also Published As

Publication number Publication date
GB8522731D0 (en) 1985-10-16
GB2180227B (en) 1989-09-20

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980913