EP2585373A1 - Method for the packaging of wet or dry solids suitable for transportation and/or storage - Google Patents

Method for the packaging of wet or dry solids suitable for transportation and/or storage

Info

Publication number
EP2585373A1
EP2585373A1 EP11745822.4A EP11745822A EP2585373A1 EP 2585373 A1 EP2585373 A1 EP 2585373A1 EP 11745822 A EP11745822 A EP 11745822A EP 2585373 A1 EP2585373 A1 EP 2585373A1
Authority
EP
European Patent Office
Prior art keywords
sack
wet
dry solids
pallet
platform
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
EP11745822.4A
Other languages
German (de)
French (fr)
Other versions
EP2585373B1 (en
Inventor
Angelo Bassetti
Leonardo Zan
Ignazio Frisone
Giorgio Arcangeletti
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.)
Saipem SpA
Original Assignee
Saipem SpA
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 Saipem SpA filed Critical Saipem SpA
Publication of EP2585373A1 publication Critical patent/EP2585373A1/en
Application granted granted Critical
Publication of EP2585373B1 publication Critical patent/EP2585373B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • 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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/20—Reducing volume of filled material
    • B65B1/22—Reducing volume of filled material by vibration
    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/04—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated
    • B65B11/045—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated by rotating platforms supporting the articles
    • 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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/32—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by weighing
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/16—Packaging contents into primary and secondary packaging
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks

Definitions

  • the present patent application relates to a method for the packaging of wet or dry solids, in particular sulfur in the solid state, in the form of sludge or powders suitable for transportation and/or storage.
  • Sludge containing sulfur in the solid state can mainly derive from desulfurization plants, contained in field gases, effected by means of specific processes, including the commercial process LO-CAT wherein said sludge is obtained as by-product, but also from dehydration plants of sulfur-containing sludge, by means of filter presses.
  • the method, object of the present invention, for the packaging of wet or dry solids, preferably in the form of sludge or powders, for transportation and/or storage comprises the following steps:
  • a suitable device preferably a vacuum pump whose suction mouth can be connected, through a valve, pre-installed on the sack itself, activated and maintained in operation until a pre-determined pressure value has been reached;
  • the wet or dry solids packaged with the method claimed can contain or consist of sulfur in the solid state, such as sulfur cakes consisting of sulfur powder and water.
  • the plastic sack used is preferably a multilayer material, more preferably composed externally of polyethylene and internally of nylon, with a thickness, depending on the weight to be carried, of polyethylene preferably ranging from 0.15 to 0.5 mm (more preferably from 0.15 to 0.2 mm) and of nylon, whose function is to maintain the vacuum, ranging from 0.05 to 0.10 mm.
  • the sack made of plastic material can be dark- coloured, preferably black, in order to resist degradation when exposed to solar radiation.
  • the sealing of the sack is preferably either low- temperature thermo-welded and/or glued by means of a suitable commercial adhesive.
  • the wrapping of the vacuum- sealed sack can be advantageously effected by wrapping not only the sealed sack but also the pallet on which said sack is laid, thus increasing its dimensional stability and mechanical resistance and facilitating its handling.
  • the transfer to the rotating platform of the loaded sack resting on the pallet or directly on the vibrating platform may preferably be carried out before the hermetic sealing of the sack itself.
  • a further object of the invention relates to the system for the packaging of wet or dry solids, preferably in the form of sludge or powders, for transportation and/or storage, which comprises:
  • a conveying equipment preferably a hopper, which can be fixed to the ceiling or bridge of the area where the system is located;
  • a plastic sack preferably having a substantially cylindrical shape, possibly equipped with a hooking system by suspension, a valve for producing and maintaining the vacuum;
  • a metallic structure for holding the sack preferably consisting of a column and a horizontal arm to which the hooking system of the sack is fixed;
  • a vacuum-producing device preferably a vacuum pump, possibly equipped with a piping with a rapid connection to the suction valve on the sack and possibly to blades having characteristics suitable for a marine environment;
  • a vibrating platform preferably hydraulically liftable, and equipped with a hydraulic control unit ;
  • the wrapping machine preferably has the rotating axis centred on the pallet, when present.
  • the packagings obtained with the method and system described above can be transported towards an adjacent storage area where they can be inserted, by means of onboard cranes, into "baskets" normally used by the supporting means for the restocking of platforms and/or off-shore structures.
  • the “baskets” are metal cages, inside which the goods destined for off-shore structures are positioned.
  • the sulfur sludge, leaving the vacuum filter at the tail of the LO-CAT process, is sent into a loading hopper (1) which conveys it into a plastic sack (4).
  • the sack manually positioned by the operator, is kept in a vertical position by a metallic supporting structure (2) specifically designed for this purpose, so that the loading mouth is kept open.
  • the height of the supporting structure is such that the base of the sack rests on a pallet (5) in turn resting on a vibrating platform which can be raised (6) so that the weight of the material is transferred to the pallet.
  • the platform is made to vibrate with oscillating movements with respect to the vertical and/or horizontal axis so as to obtained a homogeneous compacting of the material inside the sack.
  • the vibrating platform is kept detached from the rotating platform of the wrapping machine by a hydraulic lifting system to prevent the transmission of the vibrations to the same.
  • the structures are suitably dimensioned according to production requirements and loading/unloading of the product .
  • the sack is hermetically sealed and then connected to the suction mouth of a vacuum pump (3) through a pre-installed valve on the sack itself.
  • the vacuum pump is activated and maintained in function until the pre-defined pressure value has been reached .
  • the seal of the valve can be guaranteed by means of a safety screw cap.
  • the wrapping machine is activated, which wraps a polyester film around the sack and the pallet, increasing its dimensional stability and mechanical resistance.
  • the sack is joined to the pallet and moved.
  • a new pallet and a new sack are positioned on the platform and the operation can be repeated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Pallets (AREA)
  • Vacuum Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Abstract

Method for the packaging of wet or dry solids, preferably in the form of sludge or powders such as solids containing or consisting of sulfur in the solid state, suitable for transportation and/or storage.

Description

METHOD FOR THE PACKAGING OF WET OR DRY SOLIDS SUITABLE FOR TRANSPORTATION AND/OR STORAGE
The present patent application relates to a method for the packaging of wet or dry solids, in particular sulfur in the solid state, in the form of sludge or powders suitable for transportation and/or storage.
Sludge containing sulfur in the solid state can mainly derive from desulfurization plants, contained in field gases, effected by means of specific processes, including the commercial process LO-CAT wherein said sludge is obtained as by-product, but also from dehydration plants of sulfur-containing sludge, by means of filter presses.
At present, this solid sulfur sludge is charged into containers, trays and "big bags", producing a poor structural stability in the "big bag" packaging, powder diffusions and difficult in introducing the product onto the market with a consequent classification as dangerous product .
A new method has now been found, which allows the above-mentioned problems to be overcome, mainly thanks to the use of suitable vacuum-packed sacks, wrapped with plastic films.
The method, object of the present invention, for the packaging of wet or dry solids, preferably in the form of sludge or powders, for transportation and/or storage, comprises the following steps:
* conveying, by means of a suitable device, said wet or dry solids in a sack made of plastic material, previously positioned and maintained , in a vertical position so that during loading, the loading mouth of said sack is kept open, said sack resting directly or indirectly on a vibrating platform, which vibrates during the loading with oscillating movements with respect to the vertical and/or horizontal axis, so as to obtain a homogeneous compacting of said solids inside the sack;
* interruption of the loading of the sack, when a pre-determined loading level has been reached;
* hermetic sealing of said sack and subsequent vacuum-packing of said sack by means of a suitable device, preferably a vacuum pump whose suction mouth can be connected, through a valve, pre-installed on the sack itself, activated and maintained in operation until a pre-determined pressure value has been reached;
* wrapping of the sealed vacuum-packed sack, by means of a wrapping machine having a rotating platform, with a film of plastic material so that it is suitable for transportation and/or storage .
The wet or dry solids packaged with the method claimed can contain or consist of sulfur in the solid state, such as sulfur cakes consisting of sulfur powder and water. The plastic sack used is preferably a multilayer material, more preferably composed externally of polyethylene and internally of nylon, with a thickness, depending on the weight to be carried, of polyethylene preferably ranging from 0.15 to 0.5 mm (more preferably from 0.15 to 0.2 mm) and of nylon, whose function is to maintain the vacuum, ranging from 0.05 to 0.10 mm.
The sack made of plastic material can be dark- coloured, preferably black, in order to resist degradation when exposed to solar radiation.
The sealing of the sack is preferably either low- temperature thermo-welded and/or glued by means of a suitable commercial adhesive.
It can be preferable not to lay the sack directly on the vibrating platform but on a pallet, in turn resting on said vibrating platform.
In this case, the wrapping of the vacuum- sealed sack can be advantageously effected by wrapping not only the sealed sack but also the pallet on which said sack is laid, thus increasing its dimensional stability and mechanical resistance and facilitating its handling.
The transfer to the rotating platform of the loaded sack resting on the pallet or directly on the vibrating platform, may preferably be carried out before the hermetic sealing of the sack itself.
The rotating platform of the wrapping machine is preferably positioned under the vibrating platform, but detached from the latter. A further object of the invention relates to the system for the packaging of wet or dry solids, preferably in the form of sludge or powders, for transportation and/or storage, which comprises:
* a conveying equipment, preferably a hopper, which can be fixed to the ceiling or bridge of the area where the system is located;
* a plastic sack, preferably having a substantially cylindrical shape, possibly equipped with a hooking system by suspension, a valve for producing and maintaining the vacuum;
* a metallic structure for holding the sack, preferably consisting of a column and a horizontal arm to which the hooking system of the sack is fixed;
* a vacuum-producing device, preferably a vacuum pump, possibly equipped with a piping with a rapid connection to the suction valve on the sack and possibly to blades having characteristics suitable for a marine environment;
* a vibrating platform, preferably hydraulically liftable, and equipped with a hydraulic control unit ;
* a wrapping machine with a rotating platform;
* a control system,
* possibly a pallet resting on the vibrating platform,
the sack made of plastic material being laid on the vibrating platform or on the pallet. The wrapping machine preferably has the rotating axis centred on the pallet, when present.
The packagings obtained with the method and system described above can be transported towards an adjacent storage area where they can be inserted, by means of onboard cranes, into "baskets" normally used by the supporting means for the restocking of platforms and/or off-shore structures.
The "baskets" are metal cages, inside which the goods destined for off-shore structures are positioned.
They have a large diffusion for their safety and for facilitating their hooking/unhooking from the cranes.
By adopting this method and system, the following significant advantages can be obtained:
• possibility of transporting the product by means of any vector, assimilating it to non-dangerous goods :
• absence of gaseous and powder emissions;
• possibility of storing the sacks outdoors and to bad weather;
• management of the product through a secure technology;
• facilitated transfer operations of the product.
An embodiment of the present invention is now provided with the help of figure 1, said embodiment should not be considered as limiting the invention itself .
The sulfur sludge, leaving the vacuum filter at the tail of the LO-CAT process, is sent into a loading hopper (1) which conveys it into a plastic sack (4). The sack, manually positioned by the operator, is kept in a vertical position by a metallic supporting structure (2) specifically designed for this purpose, so that the loading mouth is kept open.
The height of the supporting structure is such that the base of the sack rests on a pallet (5) in turn resting on a vibrating platform which can be raised (6) so that the weight of the material is transferred to the pallet.
The operation in turn takes place above, but not in contact with, the rotating platform of a wrapping machine (7) , which operates in the last phase of the packaging .
During the loading operation of the material, the platform is made to vibrate with oscillating movements with respect to the vertical and/or horizontal axis so as to obtained a homogeneous compacting of the material inside the sack.
The vibrating platform is kept detached from the rotating platform of the wrapping machine by a hydraulic lifting system to prevent the transmission of the vibrations to the same.
At the end of the loading operations, when a pre- defined level is reached, in this specific case 2.5 tons, the operator interrupts the vibration of the platform and commands its positioning on the underlying rotating platform.
The structures are suitably dimensioned according to production requirements and loading/unloading of the product .
At this point the sack is hermetically sealed and then connected to the suction mouth of a vacuum pump (3) through a pre-installed valve on the sack itself.
The vacuum pump is activated and maintained in function until the pre-defined pressure value has been reached .
After disconnecting the pump, the seal of the valve can be guaranteed by means of a safety screw cap.
At this point, the wrapping machine is activated, which wraps a polyester film around the sack and the pallet, increasing its dimensional stability and mechanical resistance.
At the end of the wrapping operation, the sack is joined to the pallet and moved.
A new pallet and a new sack are positioned on the platform and the operation can be repeated.

Claims

1. A method for the packaging of wet or dry solids, for transportation and/or storage, comprising the following steps:
* conveying, by means of a suitable device, said wet or dry solids in a sack made of plastic material, previously positioned and maintained in a vertical position so that during the loading the mouth of said sack is kept open, said sack resting directly or indirectly on a vibrating platform, which vibrates during the loading with oscillating movements with respect to the vertical and/or horizontal axis, so as to obtain a homogeneous compacting of said solids inside the sack;
* interruption of the loading of the sack, when a pre-determined loading level has been reached;
* hermetic sealing of said sack and subsequent vacuum-packing by means of a suitable device, activated and maintained in operation until a pre-determined pressure value has been reached;
* wrapping of the sealed vacuum-packed sack, by means of a wrapping machine having a rotating platform, with a film of plastic material so that it is suitable for transportation and/or storage .
2. The method according to claim 1, wherein the wet or dry solids are in the form of sludge or powders. The method according to claim 1 or 2 , wherein the wet or dry solids contain or consist of sulfur in the solid state.
The method according to claim 1, wherein the sack made of plastic material is a multilayer material. The method according to claim 4, wherein the multilayer material consists of polyethylene externally and nylon internally.
The method according to claim 5, wherein the thickness of the polyethylene ranges from 0.15 to 0.5 mm and the thickness of the nylon ranges from 0.05 to 0.10 mm.
The method according to claim 1, wherein the sack rests on a pallet, in turn positioned on the vibrating platform.
The method according to claim 7, wherein the wrapping of the sealed vacuum-packed sack by means of a wrapping machine is effected by wrapping not only said sack but also the pallet on which the sack rests.
The method according to claim 1, wherein the rotating platform of the wrapping machine is beneath the vibrating platform, but kept separate from the same.
A system for the packaging of wet or dry solids, for transportation and/or storage, characterized in that it comprises:
* a conveying device, preferably a hopper; * a sack made of plastic material, preferably- having a substantially cylindrical shape;
* a metallic structure for holding the sack, preferably consisting of a column and a horizontal arm to which the hooking system of the sack is fixed;
* a vacuum-producing machine, preferably a vacuum pump;
* a vibrating platform;
* a wrapping machine with a rotating platform;
* a control system;
* possibly a pallet resting on the vibrating platform;
the sack made of plastic material being positioned on the vibrating platform or on the pallet.
EP11745822.4A 2010-06-25 2011-06-20 Method for the packaging of wet or dry solids suitable for transportation and/or storage Not-in-force EP2585373B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001152A ITMI20101152A1 (en) 2010-06-25 2010-06-25 METHOD FOR PACKAGING WET OR DRIED SOLIDS SUITABLE FOR TRANSPORT AND / OR STORAGE
PCT/IB2011/001410 WO2012014027A1 (en) 2010-06-25 2011-06-20 Method for the packaging of wet or dry solids suitable for transportation and/or storage

Publications (2)

Publication Number Publication Date
EP2585373A1 true EP2585373A1 (en) 2013-05-01
EP2585373B1 EP2585373B1 (en) 2015-11-04

Family

ID=43740354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11745822.4A Not-in-force EP2585373B1 (en) 2010-06-25 2011-06-20 Method for the packaging of wet or dry solids suitable for transportation and/or storage

Country Status (6)

Country Link
EP (1) EP2585373B1 (en)
CN (1) CN102958806B (en)
CA (1) CA2802450C (en)
EA (1) EA022389B1 (en)
IT (1) ITMI20101152A1 (en)
WO (1) WO2012014027A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015199240A (en) * 2014-04-07 2015-11-12 大日本印刷株式会社 Authenticity determination medium

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Publication number Priority date Publication date Assignee Title
CN105083599B (en) * 2015-08-06 2017-11-28 江西光明智能科技有限公司 Automatic sample reception device and its sample reception method
RU2648797C2 (en) * 2016-08-05 2018-03-28 Акционерное общество "Военно-промышленная корпорация "Научно-производственное объединение машиностроения" Method and device for storing and recovering a particulate product

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US20040026292A1 (en) * 2000-12-15 2004-02-12 Ours David C. Transportable container for bulk goods and method for forming the container
ITBO20050408A1 (en) * 2005-06-17 2006-12-18 Ivo Passini BAGGING EQUIPMENT, PARTICULARLY FOR GRANULAR AND POWDERED PRODUCTS
CN2832664Y (en) * 2005-07-28 2006-11-01 常熟市三禾计量设备厂 Weighing and encryption equipment of packing machine
US20090279812A1 (en) * 2008-05-09 2009-11-12 Closure Systems International Inc. Transportable package and system and method to form the same
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CN201439385U (en) * 2009-07-02 2010-04-21 宁波新福钛白粉有限公司 Quantitative packaging machine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015199240A (en) * 2014-04-07 2015-11-12 大日本印刷株式会社 Authenticity determination medium

Also Published As

Publication number Publication date
CN102958806B (en) 2016-04-20
WO2012014027A1 (en) 2012-02-02
ITMI20101152A1 (en) 2011-12-26
EA022389B1 (en) 2015-12-30
CA2802450A1 (en) 2012-02-02
CN102958806A (en) 2013-03-06
EA201201576A1 (en) 2013-05-30
EP2585373B1 (en) 2015-11-04
CA2802450C (en) 2019-01-08

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