CA1059054A - Trimming and emptying device for bulk material - Google Patents
Trimming and emptying device for bulk materialInfo
- Publication number
- CA1059054A CA1059054A CA307,576A CA307576A CA1059054A CA 1059054 A CA1059054 A CA 1059054A CA 307576 A CA307576 A CA 307576A CA 1059054 A CA1059054 A CA 1059054A
- Authority
- CA
- Canada
- Prior art keywords
- guide beam
- chamber
- bulk material
- rake
- storage chamber
- 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.)
- Expired
Links
Landscapes
- Ship Loading And Unloading (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The specification describes a trimming and emptying device for bulk material in a cartage or storage room comprising at least one raking device, which in use moves the bulk material in one of the main directions of the room, and which is moveable transversally of the direction of motion of the bulk material along vertically moveable guide beams. The guide beams are associated with guides which are formed substantially after the cross-sectional outline of the room, and are extensible for automatic adaptation to varying width of the room in the vertical direction.
The specification describes a trimming and emptying device for bulk material in a cartage or storage room comprising at least one raking device, which in use moves the bulk material in one of the main directions of the room, and which is moveable transversally of the direction of motion of the bulk material along vertically moveable guide beams. The guide beams are associated with guides which are formed substantially after the cross-sectional outline of the room, and are extensible for automatic adaptation to varying width of the room in the vertical direction.
Description
~0590S~
1 The present invention relates to an apparatus for emptying bulk material in a cargo or storage chamber comprising at least one raking device which is arranged to move the bulk material in one of the main directions of the chamber and which is movable vertically and transversely of the direction of motion of the bulk material.
A device of this type is shown for instance in French Patents 1,343,751 and 911,594. By the use of such devices, for instance in a ship, for unloading the ship, it will be necessary to move the bulk material up an inclined plane to one or more band conveyors running transversely of the direction of the bulk material is being moved by the raking devices. The band conve~ors take up space and thus reduce the net cargo volume of the room. Furthermore, since the band conveyors are placed near the bottom of the ship, access for repair and maintenance work is difficult.
In certain shipboard uses, especially in larger ships, frames, reinforcing plates and webs often protrude into the cargo space, thus making it impossible for the raking devices to remove the bulk material adjacent to the outer walls of the cargo space. Furthermore, the raking devices will not be able to cover the entire cross section of the cargo space should the cargo space have varying width in the vertical direction since the guiding beams of the raking devices are dependent upon verti-cal guides.
An object of the invention is to provide an apparatus foremptying a cargo or storage chamber of the above type which over-come the deficiencies and drawbacks mentioned above.
~ In accordance with the invention, there is provided an apparatus for emptying bulk material from a storaqe chamber, said
1 The present invention relates to an apparatus for emptying bulk material in a cargo or storage chamber comprising at least one raking device which is arranged to move the bulk material in one of the main directions of the chamber and which is movable vertically and transversely of the direction of motion of the bulk material.
A device of this type is shown for instance in French Patents 1,343,751 and 911,594. By the use of such devices, for instance in a ship, for unloading the ship, it will be necessary to move the bulk material up an inclined plane to one or more band conveyors running transversely of the direction of the bulk material is being moved by the raking devices. The band conve~ors take up space and thus reduce the net cargo volume of the room. Furthermore, since the band conveyors are placed near the bottom of the ship, access for repair and maintenance work is difficult.
In certain shipboard uses, especially in larger ships, frames, reinforcing plates and webs often protrude into the cargo space, thus making it impossible for the raking devices to remove the bulk material adjacent to the outer walls of the cargo space. Furthermore, the raking devices will not be able to cover the entire cross section of the cargo space should the cargo space have varying width in the vertical direction since the guiding beams of the raking devices are dependent upon verti-cal guides.
An object of the invention is to provide an apparatus foremptying a cargo or storage chamber of the above type which over-come the deficiencies and drawbacks mentioned above.
~ In accordance with the invention, there is provided an apparatus for emptying bulk material from a storaqe chamber, said
- 2 ~
lOS90S4 1 apparatus comprising rake means in said storage chamber for transporting material in the chamber in one direction therein for external discharge from said chamber, a guide beam in said chamber extending transversely with respect to said one direction, means supporting said rake means on said guide beam for slidable movement thereon means supporting said guide beam for vertical movement thereof said guide beam including means for varying the length thereof for adapting the length of the guide beam to varying width of the storage chamber.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the invention are shown in the drawings, wherein:
Figure 1 is a transverse cross section throuqh the cargo space of a ship in which emptying apparatus according to the invention is installed without a bulky horizontal band conveyor in the lower part of the cargo space;
Figure 2 is a cross section of a cargo space having varying widtn in the vertical direction;
Figure 3 is a longitudinal cross section through the cargo space of the ship with the apparatus according to the invention;
Figure 4 shows a part of the apparatus according to the invention in Figure 1 on a larger scale; and Figure 5 shows the device in Figure 4 viewed in the direc-tion of the arrows V-V in Figure 4.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In Figure 1 is shown a cross section of a ship hull 1 with a cargo space 2 in which is installed a raking device 3.
The raking device is able to move bulk cargo in the longitudinal
lOS90S4 1 apparatus comprising rake means in said storage chamber for transporting material in the chamber in one direction therein for external discharge from said chamber, a guide beam in said chamber extending transversely with respect to said one direction, means supporting said rake means on said guide beam for slidable movement thereon means supporting said guide beam for vertical movement thereof said guide beam including means for varying the length thereof for adapting the length of the guide beam to varying width of the storage chamber.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the invention are shown in the drawings, wherein:
Figure 1 is a transverse cross section throuqh the cargo space of a ship in which emptying apparatus according to the invention is installed without a bulky horizontal band conveyor in the lower part of the cargo space;
Figure 2 is a cross section of a cargo space having varying widtn in the vertical direction;
Figure 3 is a longitudinal cross section through the cargo space of the ship with the apparatus according to the invention;
Figure 4 shows a part of the apparatus according to the invention in Figure 1 on a larger scale; and Figure 5 shows the device in Figure 4 viewed in the direc-tion of the arrows V-V in Figure 4.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In Figure 1 is shown a cross section of a ship hull 1 with a cargo space 2 in which is installed a raking device 3.
The raking device is able to move bulk cargo in the longitudinal
3~ direction of the ship, i.e. perpendicular to the plane of the ~OS9054 1 ship, and the raking device 3 is transversely movable relative to the longitudinal direction of the ship along guidinq beam 4 w~ich in turn is movable vertically in guides (not shown) at its ends.
Furthermore, at one end of the raking device 3, a similar raking device 5 is arranged extending at an angle relative to the raking device 3, preferably transversely i.e. perpendicularl;y to the latter as shown. The transverse raking device 5 is able to move the bulk cargo towards a vertical transporting device 6 placed, for instance, near one side of the cargo space. In the embodiment shown, the vertical transporting device 6 is in the form of a bucket conveyor delivering bulk cargo upwardly to a band conveyor 7 on the deck of the ship. Instead of a bucket conveyor, a screw conveyor or any other suitable vertical transporting device may be used.
The transverse raking device 5 may be divided into two or more raking devices delivering bulk cargo to the same or separate vertical transporting devices. The transverse raking device is movable ver-tically, for instance by means of suspension members 8 of variable length. The transverse raking device is preferably held at a some-what lower level than the main raking device 3 so that a certain slip angle is obtained from the latter. Thus, the material falls under the action of gravity, resulting in energy savings.
By using a transverse raking device together with a vertical transporting device, a higher degree of filling of the cargo space is obtained since the dead volume beneath inclined planes leading to the transverse band conveyors, is avoided.
Furthermore, repair and maintenance work becomes easier because the rakes at all times may be situated above the cargo.
Figure 2 shows how a raking device is installed in a ~ cargo space 2 with substantially varying width in the vertical direction. The raking device 3 with the guide beam 4 are shown 1 in solid lines in the upper position and in broken lines in a lower position. The lower position illustrates how the guide beam 4 is constituted by two outer sections 4' telescopically arranged in middle section 4". The outer sections 4' of the guide beam are equipped at their outer ends with rollers 9 or the like gliding in guides 10 which generally follow the sidewalls of the cargo space.
The middle section 4" of the guide beam is shorter than the smallest distance between the guides 10.
The middle section 4" of the guide beam may alternatively be arranged floating on the two outer sections 4' in order for it to be movable with the raking device 3 all the way out to the guides 10 even when the guide beam 4 is located in a lower position. There-by, possible problems are avoided since the raking device 3 does not have to be moved from the middle seciton 4" to one of the outer sections 4', or vice versa.
Figure 3 shows a longitudinal cross section through the cargo space 2. Therein it is seen that the main rake 3 moves bulk material in the longitudinal direction of the cargo space, to trans-verse rake 5 which in turn moves the material to the vertical trans-porting device 6. The main rake 3 is equipped with an excavatingarm means 11 which is movable and pivotably arranged on the rake~ By means of the excavating arm means 11, bulk material may be extracted from between frames 12 and stiffening plates 13 so that the main rake 3, and the transverse rake 5 may respectively move the material towards the vertical transporting device. Since the excavating arm means 11 is movable on the rake, it is able to reach all remaining material between the frames or protrusions so that the vessel in most cases may be completely unloaded without further equipment.
Figure 4 shows in greater detail an especially suitable embodiment of the transporting device 6. It is constituted by a 1 band conveyor with buckets 14 attached to a number of endless chains 15 running over upper and lower driving and turning wheels 16, of which only the lower one is shown.
That part of the bucket conveyor which at any time lies below the level of the surrounding bulk material, is protected by plates 17 which are attached to chains which run over lower turning wheels 19. The plates 17 and the chains 18 together form a roll-front type device whose upper edge 20, as is best shown in Figure 5, may be lowered to expose the bucket conveyor as the level of the bulk material is reduced. The upper edge 20 of the roll-front device is at all times held somewhat lower than the transverse rake 5 so that the bulk material may slide from the end of the rake down into the buckets 14 of the conveyor.
The expression "vertical transporting device" used in the preceding description is not meant to be restricted to a transport-ing device arranged absolutely vertically in the space, but may comprise any suitable transporting device able to move the bulk material from a lower to a higher level. Furthermore, move than one vertical transporting device may be arranged in a single space where this may be deemed expedient.
Although various embodiments have been described herein in detail, it will be apparent to those skilled in the art that variations may be made thereto without departing from the spirit of the invention or the scope of the appended claims.
Furthermore, at one end of the raking device 3, a similar raking device 5 is arranged extending at an angle relative to the raking device 3, preferably transversely i.e. perpendicularl;y to the latter as shown. The transverse raking device 5 is able to move the bulk cargo towards a vertical transporting device 6 placed, for instance, near one side of the cargo space. In the embodiment shown, the vertical transporting device 6 is in the form of a bucket conveyor delivering bulk cargo upwardly to a band conveyor 7 on the deck of the ship. Instead of a bucket conveyor, a screw conveyor or any other suitable vertical transporting device may be used.
The transverse raking device 5 may be divided into two or more raking devices delivering bulk cargo to the same or separate vertical transporting devices. The transverse raking device is movable ver-tically, for instance by means of suspension members 8 of variable length. The transverse raking device is preferably held at a some-what lower level than the main raking device 3 so that a certain slip angle is obtained from the latter. Thus, the material falls under the action of gravity, resulting in energy savings.
By using a transverse raking device together with a vertical transporting device, a higher degree of filling of the cargo space is obtained since the dead volume beneath inclined planes leading to the transverse band conveyors, is avoided.
Furthermore, repair and maintenance work becomes easier because the rakes at all times may be situated above the cargo.
Figure 2 shows how a raking device is installed in a ~ cargo space 2 with substantially varying width in the vertical direction. The raking device 3 with the guide beam 4 are shown 1 in solid lines in the upper position and in broken lines in a lower position. The lower position illustrates how the guide beam 4 is constituted by two outer sections 4' telescopically arranged in middle section 4". The outer sections 4' of the guide beam are equipped at their outer ends with rollers 9 or the like gliding in guides 10 which generally follow the sidewalls of the cargo space.
The middle section 4" of the guide beam is shorter than the smallest distance between the guides 10.
The middle section 4" of the guide beam may alternatively be arranged floating on the two outer sections 4' in order for it to be movable with the raking device 3 all the way out to the guides 10 even when the guide beam 4 is located in a lower position. There-by, possible problems are avoided since the raking device 3 does not have to be moved from the middle seciton 4" to one of the outer sections 4', or vice versa.
Figure 3 shows a longitudinal cross section through the cargo space 2. Therein it is seen that the main rake 3 moves bulk material in the longitudinal direction of the cargo space, to trans-verse rake 5 which in turn moves the material to the vertical trans-porting device 6. The main rake 3 is equipped with an excavatingarm means 11 which is movable and pivotably arranged on the rake~ By means of the excavating arm means 11, bulk material may be extracted from between frames 12 and stiffening plates 13 so that the main rake 3, and the transverse rake 5 may respectively move the material towards the vertical transporting device. Since the excavating arm means 11 is movable on the rake, it is able to reach all remaining material between the frames or protrusions so that the vessel in most cases may be completely unloaded without further equipment.
Figure 4 shows in greater detail an especially suitable embodiment of the transporting device 6. It is constituted by a 1 band conveyor with buckets 14 attached to a number of endless chains 15 running over upper and lower driving and turning wheels 16, of which only the lower one is shown.
That part of the bucket conveyor which at any time lies below the level of the surrounding bulk material, is protected by plates 17 which are attached to chains which run over lower turning wheels 19. The plates 17 and the chains 18 together form a roll-front type device whose upper edge 20, as is best shown in Figure 5, may be lowered to expose the bucket conveyor as the level of the bulk material is reduced. The upper edge 20 of the roll-front device is at all times held somewhat lower than the transverse rake 5 so that the bulk material may slide from the end of the rake down into the buckets 14 of the conveyor.
The expression "vertical transporting device" used in the preceding description is not meant to be restricted to a transport-ing device arranged absolutely vertically in the space, but may comprise any suitable transporting device able to move the bulk material from a lower to a higher level. Furthermore, move than one vertical transporting device may be arranged in a single space where this may be deemed expedient.
Although various embodiments have been described herein in detail, it will be apparent to those skilled in the art that variations may be made thereto without departing from the spirit of the invention or the scope of the appended claims.
Claims (6)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Apparatus for emptying bulk material from a storage chamber, said apparatus comprising rake means in said storage chamber for transporting material in the storage chamber in one direction therein for external discharge from said chamber, a guide beam in said chamber extending transversely with respect to said one direction, means supporting said rake means on said guide beam for slidable movement thereon, means supporting said guide beam for vertical movement thereof, said guide beam including means for varying the length thereof for adapting the length of the guide beam to varying width of the storage chamber.
2. Apparatus as claimed in claim 1, wherein said chamber has longitudinal and transverse extent, the rake means extending longitudinally and having a fixed length, said guide beam extend-ing transversely.
3. Apparatus as claimed in claim 2, wherein said means for varying the length of the guide beam comprises telescopic sections for said guide beam.
4. Apparatus as claimed in claim 3, wherein said telescopic sections of said guide beam include a middle section and two outer sections, said rake means being confined for slidable movement only on said middle section.
5. Apparatus as claimed in claim 4, wherein the lengths of the middle and outer sections are correlated with the maximum width of the chamber to enable the middle section to travel on the outer sections so that the rake means can transverse substantially the entire maximum width of the chamber.
6. Apparatus as claimed in claim 5, comprising guides in said chamber on the side walls thereof and roller means on said outer sections engaged in said guides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA307,576A CA1059054A (en) | 1977-01-17 | 1978-07-17 | Trimming and emptying device for bulk material |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO770132A NO138442C (en) | 1977-01-17 | 1977-01-17 | TRIM AND DEVICE DEVICE FOR SHARED GOODS. |
| CA294,753A CA1060372A (en) | 1977-01-17 | 1978-01-11 | Trimming and emptying device for bulk material |
| CA307,576A CA1059054A (en) | 1977-01-17 | 1978-07-17 | Trimming and emptying device for bulk material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1059054A true CA1059054A (en) | 1979-07-24 |
Family
ID=27165460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA307,576A Expired CA1059054A (en) | 1977-01-17 | 1978-07-17 | Trimming and emptying device for bulk material |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1059054A (en) |
-
1978
- 1978-07-17 CA CA307,576A patent/CA1059054A/en not_active Expired
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