EP4293179A1 - Vorrichtung und verfahren zum bau eines silos - Google Patents

Vorrichtung und verfahren zum bau eines silos Download PDF

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Publication number
EP4293179A1
EP4293179A1 EP22179313.6A EP22179313A EP4293179A1 EP 4293179 A1 EP4293179 A1 EP 4293179A1 EP 22179313 A EP22179313 A EP 22179313A EP 4293179 A1 EP4293179 A1 EP 4293179A1
Authority
EP
European Patent Office
Prior art keywords
silo
arced
panel
panels
alignment device
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.)
Pending
Application number
EP22179313.6A
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English (en)
French (fr)
Inventor
Cees GIELING
Gert Jan FONS
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.)
J&d Beheer BV
Original Assignee
J&d Beheer 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 J&d Beheer BV filed Critical J&d Beheer BV
Priority to EP22179313.6A priority Critical patent/EP4293179A1/de
Priority to PCT/EP2023/066111 priority patent/WO2023242340A1/en
Publication of EP4293179A1 publication Critical patent/EP4293179A1/de
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02—Containers for fluids or gases; Supports therefor
    • E04H7/04—Containers for fluids or gases; Supports therefor mainly of metal
    • E04H7/06—Containers for fluids or gases; Supports therefor mainly of metal with vertical axis

Definitions

  • the invention generally relates to an alignment device for aligning arced silo panels to form a silo wall during construction of a silo.
  • the invention may also relate to a lifting device for lifting silo panels during the construction of a silo, and an arced silo panel for the construction of a silo.
  • the invention may further relate to a method for constructing a silo.
  • a silo may be understood to encompass storage tanks, in particular large storage tanks.
  • Mass production of increasing amounts of goods of varied nature makes it necessary to build storage structures of a proportionally growing capacity for storing materials.
  • Industries such as the petrochemical, biodiesel, oil and the dairy industry, as well as wastewater treatment plants, water purification plants and, in general, every industry requiring the storage of large quantities of fuel, liquids, grains and other products, need large size silos in order to achieve competitive prices in the purchase of raw materials as well as in large-scale production.
  • a silo is generally constructed using a multiplicity of stacked cylindrical rings to achieve the desired height.
  • the traditional construction system starts from the base of the silo.
  • the walls are built up from below, using cylindrical rings, starting from the lowest ring welded to the base and ending with the construction of the roof and the subsequent attachment of all fittings (ladders, piping, telemetry and control systems, etc.).
  • This approach to the construction of silos brings about difficulties with regards to, amongst others, required equipment, safety, alignment, and quality of welding.
  • the silo under construction may be raised so that a new cylindrical ring may be provided under the part of the silo which is already constructed. As such, the silo under construction is raised, rather than all the materials necessary to form a new cylindrical ring. In this manner, e.g. welding equipment and/or alignment equipment, as well as the parts forming the new cylindrical rings, may be kept on the ground, which improves safety and efficiency.
  • a known method of constructing silos is to provide a multiplicity of separate silo panels, which are joined to form a cylindrical ring. These separate silo panels are generally pre-bent and often comprise outwardly projecting flanges around the periphery of the silo panel. Such separate silo panels are shown in WO00/49249 . Even in such systems, the alignment of the silo panels provides significant challenges.
  • the alignment device may further comprise at least one clamping unit provided on the outer side of the base frame, the clamping unit being arranged to clamp two flanges of a lower arced silo panel and upper arced silo panel together.
  • the clamping unit may be on the inner side, or on both inner and outer side, of the base frame for clamping flanges that are part of an inner periphery of a lower and upper arced silo panel.
  • the new part is to be held in position and is to be aligned with an arced silo panel that is already part of the partially constructed silo.
  • the pressing and clamping units engage on inner and outer sides of the arced silo panels during construction for positioning and aligning.
  • the inner surface of the new arced silo panel and the inner surface of the existing cylindrical ring align, to radially align the new arced silo panel with the existing structure.
  • the outwardly extending peripheral flange of the new arced silo panel is aligned with the flange of the existing cylindrical ring.
  • the clamping unit comprises two opposing clamping wheels. These wheels may be provided on two substantially parallel and substantially horizontal axes, said axes being vertically spaced from one another.
  • the clamping wheels are preferably arranged to clamp two flanges of two arced silo panels together.
  • the wheels are mounted on rotatable shafts that e.g. are connected to the frame via one or more bearings.
  • a new arced silo panel When a new arced silo panel is provided into the system, it is attached to the arced silo panel which was previously joined to the silo under construction. This is done by joining straight opposing side sections of the peripheral flange using e.g., bolts. The connected side sections extend generally in a vertical direction.
  • the new arced silo panel is also grabbed by the clamping unit at the top flange that will generally extend in the horizontal direction.
  • the top flange of the new arced silo panel is then clamped together with the bottom flange of the existing cylindrical ring, above the new arced silo panel.
  • the new arced silo panel and the alignment device are then suspended from the bottom flange of the existing cylindrical ring.
  • the provision of two vertically spaced inner pressing wheels that are arranged to engage a lower and a upper arced silo panel respectively allows for access to the seam between the new silo arced silo panel and the existing cylindrical ring. As a result, the welding may occur closer to the point where the arced silo panel is best aligned.
  • multiple clamping units each with wheels are provided, each engaging on the flange of the silo. This allows welding at a position in between two clamping units. This makes sure that the flanges are correctly clamped and held in aligned positions during welding.
  • the central lifting clamp extends upwards over between about 5% and 80% of the height, preferably to between about 5% and 60% of the height, more preferably to between about 5% and 50% of the height.
  • a lower central lifting clamp ensures that the panel can be grasped with less height of the lifting device required. The same holds for a lifting clamp being provided on the silo panel.
  • a lifting device for lifting arced silo panels during the construction of a silo.
  • the lifting apparatus may comprise a base, a vertical frame, connected to the base, and a lifting jack, arranged to travel along the vertical frame.
  • the use of such a lifting device ensures that the silo may be raised during construction without the need for a lifting device being the height of the silo. Rather, the lifting device can lift the silo so that a new cylindrical ring can be provided underneath. The silo can then be placed on the ground or on blocks by the lifting device. The lifting device will then engage with the engaging element of the silo panels of the newly formed cylindrical ring, and raise the silo to provide a space for new arced silo panels for the formation of a ring. The lifting device can then lift the silo again, to form a space sufficient for the formation of a subsequent cylindrical ring.
  • the engagement unit is a parallelogram hook.
  • the lifting jack may be arranged to engage with the engagement element of the lifting clamp of the arced silo panel according to any of the embodiments discussed hereinbefore.
  • a method for constructing a silo comprises the steps of providing a plurality of arced silo panels, preferably according to any of the embodiments discussed hereinbefore, providing an alignment device, preferably according to any of the embodiments described hereinbefore, laterally joining arced silo panels to construct a first cylindrical ring, providing a lifting device, preferably according to any of the embodiments described hereinbefore, raising the silo with the lifting device to provide space for a next cylindrical ring, aligning and joining arced silo panels with the alignment device to form the next cylindrical ring, and repeating these steps to form the silo.
  • FIG. 1 a three-dimensional view of a silo 10 under construction is shown.
  • the silo is built from a plurality of arced silo panels 12, which are arced along a first angular direction.
  • Such silo panels 12 comprise an arced wall defining a section of a cylindrical shape to form a silo panel body being arced in a first angular direction.
  • the arced silo panels are substantially straight in a second direction.
  • the first angular direction extends substantially horizontal, while the second direction is substantially vertical.
  • a multiplicity of laterally positioned panels define a cylindrical ring.
  • the panels are formed by arced silo panels.
  • the ring forms a level of the silo.
  • the silo panels 12 comprise a circumferential flange provided around a part of the periphery of the panel body.
  • said flange extends outwardly.
  • the flange extends around a major part of the curved shape of the arced silo panel and defines arced top and bottom sections, and a flange extends along the straight (vertical) opposing side sections.
  • the flange is preferably interrupted at the two ends of the opposing side sections close to the curved flange.
  • the formed opening in the flange of about 2-15cm, preferably 4-10cm, allows a wheel to pass over the arced top and bottom flange sections, between adjacent panels 12, during the construction of the silo 10.
  • the arced silo panel has four openings in the circumferential flange.
  • one or both arced flange extend from one to the other opposing end.
  • the flange preferably extends generally perpendicular to the surface of the arced panel, extending about 1-12 cm, preferably about 2-10cm.
  • the silo 10 further comprises a roof 11, which preferably defines a convex shape on top of the silo 10, forming a dome roof, allowing rain water and/or debris to flow off.
  • the silo 10 further comprises a floor 14.
  • the floor 14 is omitted, and the silo is provided directly on the ground, or on e.g. a concrete base.
  • silo panels 12 are combined to form the cylindrical shape of the silo 10.
  • the silo panels are curved such that an integral number of silo panels forms a cylindrical ring of the silo.
  • the silo panels 12 are provided to the lower end of the silo 10, during construction. Upon completion of an entire ring, the whole silo 10 is raised, to provide space to form the next ring.
  • silo panel 13 is not yet part of the silo 10 and is provided in the opening defined between the floor 14 of the silo 10 and the next completed ring of silo panels 12.
  • the lifting devices 15 raise the under construction silo 10.
  • the lift can take place once an entire ring of silo panels 12 is connected.
  • the lifting devices 15 engage the arced silo panels 12.
  • the vertical flange of the silo panels is engaged.
  • the arced silo panels 12 can have an engagement device, such as a central lifting clamp 18 welded thereto, preferably on an outer circumference thereof.
  • the lifting devices 15 may release the panels 12 and attach to a lower row of panels 12. This is only necessary when the reach of the lifting devices 15 is insufficient for the required height of the silo 10.
  • an alignment device 16 is provided for aligning arced silo panels 12 to form a silo wall during construction of a silo 10.
  • the alignment device 16 is arranged to efficiently position the panels 12 in such a way that they do not need to be manually aligned with earlier panels 12, thereby increasing the efficiency of the construction of the silo 10.
  • the silo 10 comprises a floor 14, which in this embodiment is built up from staggered flat panels.
  • the alignment device 16 is shown being engaged with the wall of the silo 10, which is built up from panels 12.
  • the silo 10 is supported by a plurality of lifting devices 16. A cross-section taken on line J-J of the alignment device 16 is shown in FIG. 3 , discussed below.
  • the alignment device 16 is arranged to travel along the periphery of the stationary silo 10 during construction, aligning panels 12 as it travels around the silo 10. In embodiments, the alignment device 16 suspends on a ring of the silo.
  • FIG. 3 a side view of the alignment device according to an embodiment of to the invention is shown, taken at section J-J of FIG. 2 , showing the use of the alignment device 16 during the construction of the silo. It is noted that features described in relation to this embodiment may be combined with any other embodiment described herein.
  • FIG.3 shows a side view of the silo panel 13.
  • FIG.3 shows the silo panel 13 being aligned during construction with the existing structure of the silo.
  • the alignment device 16 engages and is suspended by the existing panel 12 of the silo.
  • the panel 12 of the existing structure is shown in cross-section, since the panels of the silo are provided in a staggered manner, with the middle of one panel coinciding with an edge region of a panel above, or below.
  • the alignment device 16 further engages the panel 13 and clamps it together with the panel 12, which is located above the new panel 13.
  • FIG.3 shows the cross-section of the arced panel at the position where two arced panels 13 sideward connect.
  • panel 13 comprises a straight (vertical) side flange 22, and an arced bottom flange 24 and an arced top flange 25. Near the top and bottom of flange 22 openings 26 are formed.
  • the straight side flange 22 is interrupted at its upper and lower regions, defining a gap through which the wheels of the alignment device 16 can travel while aligning the panels for the construction of the silo.
  • top flange 25 is clamped together with the bottom flange of the top panel 12 by the alignment device 16.
  • panels 13 is brought into position with respect to the already constructed silo.
  • Panel 13 can then be connected, e.g. by welding, to the already formed silo.
  • the bottom flange 24 is held by a bottom clamping unit. This may be advantageous to stop the bottom panel 13 from freely swinging while it is clamped together with the top panel 12.
  • Alignment device 16 comprises a base frame 27 supporting an outer side 28 and an inner side 29, forming a U-shape having a space for receiving an arced panel 13 in between the outer 28 and inner side 29. On an inner side 29 a platform for supporting a worker is formed. A ladder makes the platform accessible.
  • Silo panels 53 and 54 are connected to the ring elements 52 and 52', as well as to each other.
  • the silo panels 53, 54 have outwardly directed radial flanges, which are used to align the panels to each other and to the existing structure.
  • the silo 50 under construction is carried by lifting devices 60, comprising a base 61, a vertical frame 62 acting as a guide and connected to the base 61, and a lifting jack 63, 64, arranged to travel along the vertical frame 62.
  • the lifting jack 63, 64 preferably comprises a sleeve like element 63 comprising and/or being integrally formed with an engaging unit 64.
  • the engaging unit is a parallelogram hook.
  • Vertical frame 62 is positioned at a distance from the panels to allow the alignment device 16 to move on an inner side thereof without colliding.
  • the arced silo panel comprising an arced wall defining a section of a cylindrical shape to form a silo panel body being arced in a first angular direction defining a width, and substantially straight in a second direction defining a height, perpendicular to the first angular direction so that a multiplicity of laterally positioned panel bodies defines a cylinder and such that the arced panel body defines a convex outer surface.
  • the arced silo panel can have a circumferential flange provided around the periphery of the arced panel body, said flange extending outwardly, in the direction of the convex outer surface.
  • the arced silo panel 53, 54 has a engagement element 56 for a lifting device.
  • the engagement element is preferably mounted to an outer side of the arced silo panel. In embodiments that engagement element is adapted to be engaged by a hook like lifting device.
  • the arced silo panels are rotationally symmetric, except for the engagement element of the lifting clamp.
  • the engagement element is positioned at about 1 ⁇ 4 and/or 3 ⁇ 4 of periphery of the arced silo panel.
  • the positions of the engagement elements are, even though the silo panels are staggered, at the same peripheral position, albeit vertically at a distance. This allows the lifting device to pick up the next level without having to make a peripheral movement, while providing only two kinds of silo panels.
  • the silo panel have only a single engagement element or lifting clamp.
  • the silo panels can have multiple engagement elements.
  • FIG. 5 a side view of the silo under construction according to an embodiment of to the invention is shown, detailing the formation of a new cylindrical ring during the construction of the silo.
  • the silo 200 is raised using the lifting devices 205, which are engaged with the arced silo panels to lift the silo under construction to such an extent that new arced silo panels 204, 203 may be provided underneath for continued construction of the silo.
  • the alignment device 201 is provided to the lower flange of the arced silo panels of the raised silo 200 such that the alignment device 201 is suspended from the arced silo panels.
  • the suspended alignment device can move in the peripheral direction around the formed silo, without colliding with the lifting device.
  • the lifting devices 205 are positioned at a distance further from the centre of the silo 200 then the outer most part of the suspended alignment device, although e.g. support legs of the lifting device can extend more inwardly.
  • the lifting device is generally U-shaped, with the open end of the U receiving the alignment device.
  • a new arced silo panel 204 is provided to the space between the inner and outer side of the alignment device 201, while the alignment device is suspended from the lower arced flange of the top arced silo panel.
  • the top flange of the new arced silo panel 204 is clamped together with the lower arced flange of the top arced silo panel.
  • the alignment device 201 travels along the periphery of the silo to continuously clamp and align the two silo panels and to weld the new arced silo panel 204 to the existing silo structure.
  • the alignment device 800 comprises a base frame 88 having an inner side 81 and an outer side 80. As the alignment device 800 is configured to receive a silo panel, the inner and outer side 81,80 are positioned on the two sides of that silo panel. The inner and outer side 81, 80 with respect to a silo panel 100 are better shown in Fig.9 .
  • the alignment device 800 may further comprise a plurality of clamping units 82, 85, arranged to clamp the flanges of two panels together.
  • the clamping units 82, 85 are provided on the outer side 80, the clamping units 82, 85 being arranged to clamp two flanges of a lower arced silo panel and newly positioned upper arced silo panel together.
  • the clamping units 82, 85 each comprise a plurality of opposing clamping wheels, here four, provided on substantially parallel and substantially horizontal axes, said axes being vertically spaced from one another.
  • the clamping wheels are arranged to clamp two flanges of two arced silo panels together.
  • the wheels of the clamping unit allow movement of the alignment device over a flange of an arced silo panel.
  • the clamping wheels are driven by one or more drives 83, which are arranged to provide a driving force to move the alignment device 800 along the periphery of the silo under construction.
  • one wheel 86 can engage the lower flange of the two clamped flanges and press that flange inwardly until wheel 86 engages on the two flanges, including the upper flange of the already part-of-the-constructed silo panel.
  • the wheel 86 is positioned at a height / horizontal plane that correspond to the height of the space between the upper and lower clamping wheel of clamping units 82,85.
  • outer pressing wheels may be provided in a vertically spaced manner such that they engage with the top and bottom arced silo panels separately.
  • the clamping unit comprises two wheels 110, 111, which are provided on substantially horizontal axes 112, 113, respectively.
  • the bottom horizontal shaft 112 can pivot in direction 115, along guide 116 to move wheel 110 away from wheel 111, allowing the entry of to flanges 102, 105 between the wheels 110, 111, even if the flanges 102, 105 are slightly spaced apart.
  • the wheels 110 and 111 are moved towards each other. Suitable hydraulic means can be used.
  • FIG. 8 a top view of the alignment device according to an embodiment of to the invention is shown.
  • the inner panel aligner 113 is shown, providing an opposite force to the outer panel aligner, having outer pressing wheels 132 to radially align the panels.
  • the pre-alignment device 130 is arranged to provide the panels entering from side 131 into the system such that the panels are accepted in the further clamping units without large misalignment.
  • FIG. 9 a side view of the alignment device according to an embodiment of to the invention is shown.
  • the inner alignment unit 120 is shown to have two inner pressing wheels 122 which provide an alignment force opposite to the outer pressing wheel provided on a vertical axis on the outer side 80 of the alignment device.
  • FIG. 9 further shows that the panels 100, 104 are clamped together using clamping wheels 110, 111, which are provided on horizontal axes. Once clamped, the welding unit 140 joins the two panels together.
  • FIG. 10 a top view of the alignment device 316 according to an embodiment of to the invention is shown, during the construction of the silo.
  • the pre-alignment unit 318 positions the new panel 312 such that it is received by the pressing unit, comprising the inner panel aligner 320 and the outer panel aligner, having outer pressing wheels 321, 323.
  • wheels 321,323 engage on an outer side of the clamped flanges, while clamping wheel 322 engage on a top side of the clamped flange.
  • the alignment device 316 comprises a clamping unit 325, arranged to vertically align the panels such that the welding unit 340 can join the panels together.
  • a still further arced silo panel 313 is attached to the new arced silo panel 312, before it is brough into pre-alignment by the pre-alignment unit 318 and provided to the pressing unit and the clamping unit.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
EP22179313.6A 2022-06-15 2022-06-15 Vorrichtung und verfahren zum bau eines silos Pending EP4293179A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22179313.6A EP4293179A1 (de) 2022-06-15 2022-06-15 Vorrichtung und verfahren zum bau eines silos
PCT/EP2023/066111 WO2023242340A1 (en) 2022-06-15 2023-06-15 Device and method for building a silo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22179313.6A EP4293179A1 (de) 2022-06-15 2022-06-15 Vorrichtung und verfahren zum bau eines silos

Publications (1)

Publication Number Publication Date
EP4293179A1 true EP4293179A1 (de) 2023-12-20

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EP22179313.6A Pending EP4293179A1 (de) 2022-06-15 2022-06-15 Vorrichtung und verfahren zum bau eines silos

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EP (1) EP4293179A1 (de)
WO (1) WO2023242340A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA553406A (en) * 1958-02-18 J. Evers William Method and apparatus for erecting a storage vessel
FR2339720A1 (fr) * 1976-01-29 1977-08-26 Garcia Garcia Salvador Procede de construction de reservoirs metalliques
US4121747A (en) * 1976-02-09 1978-10-24 Anchortank, Inc. Storage tank construction procedures
CN1143044C (zh) * 1999-02-16 2004-03-24 杨森斯-迪波因克公司 一种筒仓或罐及其制造方法
US20070261455A1 (en) * 2004-04-12 2007-11-15 Mark Vanderbeken Method and Apparatus for Manufacturing a Circular Metal Tank

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA553406A (en) * 1958-02-18 J. Evers William Method and apparatus for erecting a storage vessel
FR2339720A1 (fr) * 1976-01-29 1977-08-26 Garcia Garcia Salvador Procede de construction de reservoirs metalliques
US4121747A (en) * 1976-02-09 1978-10-24 Anchortank, Inc. Storage tank construction procedures
CN1143044C (zh) * 1999-02-16 2004-03-24 杨森斯-迪波因克公司 一种筒仓或罐及其制造方法
US20070261455A1 (en) * 2004-04-12 2007-11-15 Mark Vanderbeken Method and Apparatus for Manufacturing a Circular Metal Tank

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