EP0205434A1 - Storage method and apparatus - Google Patents
Storage method and apparatusInfo
- Publication number
- EP0205434A1 EP0205434A1 EP19850901022 EP85901022A EP0205434A1 EP 0205434 A1 EP0205434 A1 EP 0205434A1 EP 19850901022 EP19850901022 EP 19850901022 EP 85901022 A EP85901022 A EP 85901022A EP 0205434 A1 EP0205434 A1 EP 0205434A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- particulate material
- cement
- outlet opening
- discharge
- 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- Withdrawn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
- 238000003860 storage Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 22
- 239000004568 cement Substances 0.000 claims abstract description 48
- 239000011236 particulate material Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 22
- 230000007246 mechanism Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 7
- 238000012856 packing Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 240000000528 Ricinus communis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005007 materials handling Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
-
- 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
Definitions
- This invention relates to a storage method and storage apparatus .
- the invention is particularly , but not exclusively , applicable to the storage of dry cement powder as used for manufacturing cement or concrete for use in the construction of buildings and other structures.
- the invention is also applicable to the storage of other particulate materials of any particle size , whether these are powders or granules or otherwise.
- cement powder can be delivered to site in 20 tonne lorries having tipping gear and pneumatic discharge mechanisms whereby the powder is delivered to static central silos from which the cement can be dispensed in large quantities for batch mixing in large scale mixers from which the liquid cement is dispensed ready for use.
- An object of the present invention is to provide a method and apparatus for storing cement and other particulate materials offering improvements in relation to one or more of the matters discussed above , or generally.
- the invention also provides a method and apparatus for storing particulate materials comprising any novel feature or step , or novel combination of features or steps, disclosed herein.
- a method and apparatus for storing cement powder or other particulate materials comprises providing storage apparatus including a closable storage tank or container .
- the container is adapted to be portable. For example , it can be mounted on a chassis to form a trailer , or may be mounted in a frame for handling by a forklift truck.
- the container provides a sealed storage-vessel for cement powder .
- a drivable discharge member such as an auger or paddle member .
- the latter can be' actuated manually by means of a handle , or could be power driven by an electric motor or the like .
- the discharge member moves cement powder within the container towards an outlet opening.
- closure means in the form of a butterfly valve is provided to seal the outlet opening. It also allows control of the discharge rate.
- An inlet opening sealable by means of a suitable closure is provided for filling purposes.
- the whole assembly is substantially airtight so as to protect the cement against the ingress of moisture.
- the apparatus In use , the apparatus is caused to discharge cement powder in the required small quantities into buckets or the like for manual discharge into a cement mixer.
- the apparatus can then be transported to a refill zone to be recharged and then returned to the site and re-positioned close to the building operation for convenient use.
- FIG. 1 shows a perspective view of storage apparatus according to the invention
- Fig. 2 shows , in association with Fig. 1 , a trailer chassis for use with the apparatus of Fig. 1 ;
- Fig. 3 shows an end elevation view of a series of sets of storage apparatus according to the invention adapted for handling by a forklift truck .
- Storage apparatus 10 is adapted to be mounted on a road transport chassis 12 .
- Storage apparatus 10 comprises a container or tank 14 having a generally cylindrical portion 16 with flat end walls 18 and 20 and formed also with an integral channel portion 22 at the bottom of the cylindrical portion and in which is located an auger 24 constituting a discharge member and having a helical flight 26 mounted on an axial shaft 28.
- a filler opening 30 At the top of cylindrical portion 16 of container 14 there is provided a filler opening 30 .
- An outlet opening 32 is provided at the rear end of channel portion 22.
- a generally roof-shaped anti-packing member 34 Within container 14 there is provided a generally roof-shaped anti-packing member 34 and above this is an agitator assembly 36. Further details of these main structural items will now be described.
- Container or tank 14 is a mild steel fabrication and may be of capacity such as to hold from i to 5 tonnes cement powder according to requirements.
- the container is provided with four legs 38 which are detachably bolted to the frame 40 of chassis 12 whereby the entire storage apparatus 10 can be removed from the chassis.
- Filler opening 30 comprises a flanged collar 42 welded • to an opening in container 14 and having retainers 44 , 46 welded to the tank on opposite sides of it to co-operate with a strap 48 whereby a closure member 50 in the form of a cover or disc can be screwed-down onto the flanged collar by means of a screw-threaded rod 52 actuated by a hand wheel 54 .
- a rubber seal 56 is provided at the under side of disc 50 for sealing purposes.
- the ends of strap 48 lodge under turned-over end portions of retainers 44 , 46 to resist upthrust.
- the diameter of collar 42 is large enough to permit access to the tank for repair or inspection or servicing purposes.
- Agitator assembly 36 comprises a shaft 58 slidable axially in guides 60 , 62 carried by the tank end walls 18 , 20.
- a handle 64 is provided for manual actuation of the agitator by endwise sliding movement .
- Agitator members 66 , 68 and 70 are fixed to shaft 58 and are thus moved lengthwise of the tank to effect agitation. They are generally A-shaped to complement the top of anti-packing member 34.
- the anti-packing member 34 is generally roof-shaped and comprises mild steel sheet welded at its ends 7-2 , 74 to end walls 18 , 20 and arranged so that the side edges 76 , 78 of the anti-packing member have clearance of approximately 15" from the adjacent inner wall of the cylindrical portion 16 of the tank 14 , whereby cement powder can freely flow downwards on each side of the anti-packing member into channel portion 22 , and hence to auger 24.
- Auger 24 itself is supported in channel portion 22 on end bearings 80 and 82 so that the clearance between flight 26 of the auger and the inner surface of channel portion 22 lies in the range of 1 to 3 millimetres.
- An opening (not shown ) is formed at the rear end of the channel portion adjacent the rear end 84 of flight 26 , and a cylindrical collar 86 forms an extension of channel portion 22 and supports a discharge tube 88 having a butterfly valve 90 actuatable by a handle 92.
- Butterfly valve 90 is of conventional construction comprising a valve disc (not shown ) turnable through 90 degrees by means of handle 92 and which seals against an annular rubber seal (also not shown ) . Cement discharged through outlet 32 drops through butterfly valve 90 and discharge tube 88 into a bucket 102 .
- Chassis 12 is of generally conventional construction, comprising frame 40 mounted on ground wheels106 and having a clevis 108 for attachment to a towing vehicle.
- Parking stands 110 and 112 are provided at front and rear of the chassis for adjustable engagement with the ground to adjust the attitude of the apparatus in the parked position.
- the apparatus is filled through filler opening 30 from , for example , a static cement silo .
- the closure assembly is then, replaced and closure member 50 is screwed down into airtight sealing engagement with flanged collar 42 .
- Dry cement powder is then dispensed from the apparatus into bucket 102 by merely turning handle 64 and opening butterfly valve 90 by means of handle 92 - the latter enabling precise control of the rate of discharge .
- agitator assembly 36 can be manually operated to ensure a smooth feed of cement powder to auger 24.
- the entire apparatus is pulled by a suitable draft vehicle to the filling silo. It is then returned to the building site and can be readily moved around the site after raising the parking stands. In this way , the apparatus can be moved from point to point in the building site so that cement can be obtained quickly and easily wherever and whenever required.
- the storage apparatus 120 is substantially identical in structure to the storage apparatus 10 described above but is mounted in a rectangular frame 122 by means of legs 124 and struts 126 .
- Fig. 3 shows six sets of apparatus 120 stacked together in a block , one on top of the other , for convenient storage.
- the apparatus can be removed and taken to its place of use by means of a forklift truck or other load handling apparatus.
- the apparatus may be rendered manually displaceable by mounting the frame for each apparatus on a set of castors or other similar means whereby the apparatus can be readily manually rolled.
- the apparatus may be supported on any suitable " means so that the height of the discharge opening is suitable for dispensing cement into a bucket or other desired receiving vessel.
- the dry cement powder Due to the airtight storage conditions, the dry cement powder can be stored almost indefinitely without deterioratio .
- Theft of cement powder can be readily avoided by simply locking up the relevant working parts of the apparatus , such as the auger , so that they cannot be used.
- the structure of the discharge member may be modified .
- paddles could be provided instead of the auger.
- a scraper conveyor device could be provided or other mechanical discharge means.
- sealing the container other sealing arrangements may be provided including alternative resilient sealing materials and indeed for certain applications metal to metal seals may provide a sufficient barrier to the ingress of moisture.
- the degree of sealing required depends on the conditions of use , the material to be stored , the period of storage and related factors.
- Motor drive means may be provided for the auger or corresponding device.
- the height of the end of the discharge pipe above the ground may lie in the range of 30 to 75 centi- metres for the uses in relation to cement on building sites, or may be significantly greater for larger scale use.
- the auger or equivalent discharge device may be provided in its own discharge duct or channel which may optionally be separable from the remainder of the container , the latter feeding material to it through suitable openings.
- Agitator means may be provided at the outlet opening in the tank . Likewise , an inspection plate may _be provided in that zone.
- any other suitable type of outlet control means may be provided , such as a device of the shutter type, with or without rubber or other resilient sealing means.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Un appareil de stockage de ciment comporte un réservoir (14) possédant une mèche de décharge interne (24) et un agitateur (36). La rotation manuelle de la mèche grâce à la poignée (100) décharge le ciment dans un seau (102) par une vanne papillon (90). Le réservoir est rempli par une ouverture (30) pouvant être fermée de manière étanche. Le ciment sec en poudre situé à l'intérieur du réservoir est protégé contre la pénétration de l'humidité et peut être réparti aisément en petites quantités par un mécanisme manuel simple permettant de réduire grandement le gaspillage du ciment en poudre.A cement storage apparatus includes a reservoir (14) having an internal discharge wick (24) and an agitator (36). Manual rotation of the drill bit using the handle (100) discharges the cement into a bucket (102) through a butterfly valve (90). The reservoir is filled by an opening (30) which can be sealed. The dry powder cement located inside the tank is protected against the ingress of moisture and can be easily distributed in small quantities by a simple manual mechanism which greatly reduces the waste of powdered cement.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8403794 | 1984-02-14 | ||
GB08403794A GB2154199A (en) | 1984-02-14 | 1984-02-14 | Portable dry powder bowser |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0205434A1 true EP0205434A1 (en) | 1986-12-30 |
Family
ID=10556540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19850901022 Withdrawn EP0205434A1 (en) | 1984-02-14 | 1985-02-13 | Storage method and apparatus |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0205434A1 (en) |
AU (1) | AU3934785A (en) |
GB (1) | GB2154199A (en) |
WO (1) | WO1985003666A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991017104A1 (en) * | 1990-05-03 | 1991-11-14 | Michael John Nugent | Portable storage and dispensing apparatus |
GB2258412A (en) * | 1991-06-29 | 1993-02-10 | Electrical Services | Slurry containers |
GB9310270D0 (en) * | 1993-05-19 | 1993-06-30 | Jessett Derek | Storage and transport of damp-susceptible materials |
DE10220792A1 (en) * | 2002-05-10 | 2003-11-20 | Azo Verwaltungs Gmbh | Device for allocating flowable materials |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1157147B (en) * | 1961-04-14 | 1963-11-07 | Rolf Harry Lennqvist | Transport container for building materials |
FR1572335A (en) * | 1968-04-05 | 1969-06-27 | ||
US3735901A (en) * | 1971-03-29 | 1973-05-29 | Taylor R | Storage container for granular materials |
US3730396A (en) * | 1971-05-28 | 1973-05-01 | A M H Equipment Inc | Mobile particulate material carrier and dispenser |
GB2009608B (en) * | 1977-09-15 | 1982-03-17 | Hamptons Ltd | Apparatus for mixing cement with water and foaming agent |
FI75518C (en) * | 1982-04-30 | 1988-07-11 | Janssen Wilhelmus Gerardus E | ANORDINATION OF FRAMSTAELLNING AV MURBRUK. |
-
1984
- 1984-02-14 GB GB08403794A patent/GB2154199A/en not_active Withdrawn
-
1985
- 1985-02-13 WO PCT/GB1985/000055 patent/WO1985003666A1/en not_active Application Discontinuation
- 1985-02-13 EP EP19850901022 patent/EP0205434A1/en not_active Withdrawn
- 1985-02-13 AU AU39347/85A patent/AU3934785A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO8503666A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU3934785A (en) | 1985-09-10 |
GB2154199A (en) | 1985-09-04 |
GB8403794D0 (en) | 1984-03-21 |
WO1985003666A1 (en) | 1985-08-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19860812 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
17Q | First examination report despatched |
Effective date: 19880923 |
|
DIN1 | Information on inventor provided before grant (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BEAVER, PAUL ROBERT Owner name: NUGENT, MICHAEL JOHN |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BEAVER, PAUL ROBERT |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BEAVER, PAUL ROBERT Owner name: NUGENT, MICHAEL JOHN |
|
18D | Application deemed to be withdrawn |
Effective date: 19880830 |
|
APAF | Appeal reference modified |
Free format text: ORIGINAL CODE: EPIDOSCREFNE |