CA1103605A - Apparatus for discharging material from a heap - Google Patents
Apparatus for discharging material from a heapInfo
- Publication number
- CA1103605A CA1103605A CA330,758A CA330758A CA1103605A CA 1103605 A CA1103605 A CA 1103605A CA 330758 A CA330758 A CA 330758A CA 1103605 A CA1103605 A CA 1103605A
- Authority
- CA
- Canada
- Prior art keywords
- conveyor
- heap
- members
- carrying
- carrying surface
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/02—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads
- B65G65/06—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads with endless scraping or elevating pick-up conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/22—Impellers, e.g. push-plates, scrapers; Guiding means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
ABSTRACT
Apparatus for discharging material from a heap has a moveable bridge for extending across the heap and a discharge conveyor which comprises two endless, parallel traction members extending parallel to the bridge and spaced conveyor members each fixed to each of the two traction members; each conveyor member has a generally horizontal, rearwardly-projecting carrying surface which is adjacent the following conveyor member when the conveyor members are in the section of the conveyor which discharges the material, and an opening is left on at least one side for the entry of material. When the conveyor members reach the end of the conveyor, they are swung up and over and the material slides off the carrying surfaces.
Apparatus for discharging material from a heap has a moveable bridge for extending across the heap and a discharge conveyor which comprises two endless, parallel traction members extending parallel to the bridge and spaced conveyor members each fixed to each of the two traction members; each conveyor member has a generally horizontal, rearwardly-projecting carrying surface which is adjacent the following conveyor member when the conveyor members are in the section of the conveyor which discharges the material, and an opening is left on at least one side for the entry of material. When the conveyor members reach the end of the conveyor, they are swung up and over and the material slides off the carrying surfaces.
Description
`` 11~36~5 The present invention relates to apparatus for discharging material from a heap of bul~ material, for instance in a plant for storing material for long periods or only temporarily, or in a mixed bed plant. The apparatus has a move-able bridge for extending across tlle heap, and a discharge conveyor having two endless, parallel traction members, for instance pivoted-link chains, and spaced conveyor members connected to the traction members.
In general terms, such apparatus is known, and can be used for discharging bulk materials of greatly varying particle sizes. A particular problem arises when the material is sensitive to friction or wear or is of very fine grain size.
~ith such materials, for instance coal or fertilisers, it is desirable to suppress gross rolling movement as much as possible and also to avoid letting the material fall significant distances, so that the particles are not worn away or fragmented too much and so that not too much dust is formed.
The invention provides an apparatus for discharging material from a heap, comprisin~: a discharge conveyor having two endless parallel traction members extending parallel to each other and spaced conveyor members each fixed to each of the two traction members, each conveyor member having a generally horizontal, rearwardly projecting carrying surface which is adjacent the following conveycr member when the conveyor members axe in the section of the conveyor which discharges the material, openings being left on at least one side of the discharge conveyor so that in operation material can enter the openings and lie on the carrying surfaces, and guide walls projecting outwards at least from said one side of the discharge conveyor, the guide walls being for guiding material from the heap through the openings and onto the carrying surfaces; and means for removing the material from the carrying surfaces.
`5 Using the apparatus of the invention, the material can be picked up uniformly at the base of the heap and no rolling movement occurs within the mass of material when it is resting on the carrying surfaces. In the section of the conveyor which discharges the material, which will normally be straight, the carrying surfaces form a practically unbroken moveable platform on which the material rests, and the space above the carrying surfaces is accessible from the side so that the material can pass unhindered onto the carrying surfaces.
In a particularly preferred embodiment of the present invention each conveyor member has a transverse wall which extends down as far as the carrying surface.
In this preferred construction, the spaces which contain the material are separated from one another by the rear walls and are of cell like form.
The invention can be used for discharging long, straight heaps or round heaps, and in both cases, the conveyor members remove material from the side of the heap. For this purpose, advantageously, the guide walls are provided. Suitably, each conveyor member is p~vided with at least one guide wall, each guide wall having a lower edge portion adjacent to the carrying surface and each guide wall projecting forwards and outwards.
Desirably, at least the lower edge portion of each guide wall is inclined inwardly toward its associated carrying surface.
The guide walls promote gentle transfer of the material onto the carrying surfaces and uniform filling of the material onto the conveyor members.
There may be a row of two or more straight heaps side-by-side in a storage plant, and it is preferable to remove ` the material from the facing sides of two adjacent heaps by means o~ a sinale apparatus. For this purpose, the apparatus 3~QS
can have quide walls on each side of each carrier member. Thus a yuide wall projects from each side of each conveyor member and both guide walls are symmetrical about the longitudinal mid-plane of the conveyor member.
However, if the apparatus is being used for discharing a round heap, it is normal to position the apparatus always with the same side against the side of the heap, and the guide walls need only be provided on one side of each carrier member. It is preferable that a guide wall projects from one side only of each conveyor member and the sides of the spaces above carrying surfaces are inclined to the axis of conveyance, i.e. the (cell-like)spaces above the carrying surfaces are oblique to the axis of conveyance.
The carrying surfaces can be spaced a predetermined distance above the floor of the heap so that they do not slide on the floor and not prematurely worn away. For this purpose, the lower side of the carrying surface has projections for keeping the carrying surface away from the floor of the heap.
In this way, the traction members are relieved of the weight of the loaded carrier members and the wear is substantially restricted to that on the projections, which are easily exchangeable; furthermore, the projections enable one to maintain a predetermined, though small, spacing between the bottoms of the carrier members and the floor of the heap because they loosen up the material resting on the floor and prevent a layer of this material pushing the carrier members up out of their correct path.
According to a particular aspect thereof the present invention provides an apparatus for discharging material from a base portion of a side of a heap, comprising: two horizontally spaced apart endless pivoted-link chains forming substantially horizontal upper and lower sections; drive means for revolving the chains to move in a predetermined horizontal d~rection of -3~
i~ 5 travel along tl~e lower sections; and a plurality of adjacent conveyor members each fixed to each of the endless chains and each having a generally horizontal, rearwardly projecting carry-ing surface, the conveyor members being constructed and arranged to permit free passage of material laterally into carrying spaces definea between two adjacent conveyor members and each conveyor member having on at least one side an oblique guide wall for guiding material. from the heap onto the carrying surface of the preceding conveyor member.
- 3a -" 11~3~05 Descri~tion of Preferr~ Embo~imen~.s ~he invention will be further described, by way of example, with reference to the accompanying drawings, in which:-Figure 1 is a partly schematic side view of part of a plant for the storage of particulate materials, including apparatus of the invention;
Figure 2 is a plan view of part of the apparatus, on a larger scale;
Figure 3 is a perspective view of a carrier member of the apparatus; and Figure 4 is a plan view, corresponding to that of ~igure 2, but showing a different embodiment of the carrier member.
~he apparatus of Figure 1 includes a bridge which is of conventional structure and is not shown; the bridge can be moved up against the side of a heap and in general terms extends across the heap, though it will not normally extend across the very top of the heap. If the heap is a straight heap, the bridge will move parallel to the longitudinal axis of the heap, on rails also parallel to the longitudinal axis; if the heap is a round heap, the bridge will swing about a vertical axis approximating to the ccntre of the heap.
The bridge supports a conveyor whose path is fixed in relation to the bridge. The conveyor has two parallel, spaced traction members in the form of pivoted-link chains 1 which are guided around two star wheels 6 adjacent respective ends of the bridge. The two chains 1 are substantially identical and each has a straight lower run or section which extends parallel to the axis of the bridge and is the section which discharges the bulk material.
Spaced conveyor members 3 are fixed between the chains 1. Each conveyor member 3 has a support 2 which is fixed by means of a connection piece 21 with each of the two respective links 11 which face each other on either side of the conveyor member 3. A substantially horizontal carrying surface 31 pro3ects rearwardly from the support adjacent the floor 7 of the heap, i.e. in the direction opposite to the direction of conveyance (indicated with the arrow P) and substantially contacts the fGllowing conveyor member 3.
A preferred form of a cQnveyor member 3 is shown in Figure 3. The conveyor member 3 has a rear wall 32 which forms part of the support 2 and extends down as far as the carrying surface 31, its lower edge being connected with the carrying surface 31. ~he middle part of the carrying surface 31 is flat, but its lateral zones 34 are 3~
incliIled downwardly. ~he micldle part of the rea~ wal] ~2 i8 also flat, but its side ~ones 35 are inclined forwards and have upper, horizontal win~s 33 which project rearwards.
The sec-tions 33 are connected to a top part which comprises two flat pieces 22~ 23, forming a rigid structure~ ~he connection piece 21 (see Figure 1) is fixed to the upper flat piece 22. ~he construction is s~iffened by two struts 36 which extends between the top ~lat piece 22 and the rear wall 32.
A guide wall 4 is provided on each side of the conveyor member 3, fixed to the sections 35. ~he lower edge of each guide wall 4 is adjacent the carrying surface 31 ~nd the guide wall 4 projects forwards and outwards away from the rear wall 32. q'he lower edge zones 41 of the guide walls 4 are inclined forwardly with respec-t to the perpendicular to the axis or direction P of conveyance;
this perpendicular is the line in the vertlcal plane, i.e.
the vertical if the axis o~ conveyance is horizontal~ In effect, the lower edge zones 41 are also lnclined downwards
In general terms, such apparatus is known, and can be used for discharging bulk materials of greatly varying particle sizes. A particular problem arises when the material is sensitive to friction or wear or is of very fine grain size.
~ith such materials, for instance coal or fertilisers, it is desirable to suppress gross rolling movement as much as possible and also to avoid letting the material fall significant distances, so that the particles are not worn away or fragmented too much and so that not too much dust is formed.
The invention provides an apparatus for discharging material from a heap, comprisin~: a discharge conveyor having two endless parallel traction members extending parallel to each other and spaced conveyor members each fixed to each of the two traction members, each conveyor member having a generally horizontal, rearwardly projecting carrying surface which is adjacent the following conveycr member when the conveyor members axe in the section of the conveyor which discharges the material, openings being left on at least one side of the discharge conveyor so that in operation material can enter the openings and lie on the carrying surfaces, and guide walls projecting outwards at least from said one side of the discharge conveyor, the guide walls being for guiding material from the heap through the openings and onto the carrying surfaces; and means for removing the material from the carrying surfaces.
`5 Using the apparatus of the invention, the material can be picked up uniformly at the base of the heap and no rolling movement occurs within the mass of material when it is resting on the carrying surfaces. In the section of the conveyor which discharges the material, which will normally be straight, the carrying surfaces form a practically unbroken moveable platform on which the material rests, and the space above the carrying surfaces is accessible from the side so that the material can pass unhindered onto the carrying surfaces.
In a particularly preferred embodiment of the present invention each conveyor member has a transverse wall which extends down as far as the carrying surface.
In this preferred construction, the spaces which contain the material are separated from one another by the rear walls and are of cell like form.
The invention can be used for discharging long, straight heaps or round heaps, and in both cases, the conveyor members remove material from the side of the heap. For this purpose, advantageously, the guide walls are provided. Suitably, each conveyor member is p~vided with at least one guide wall, each guide wall having a lower edge portion adjacent to the carrying surface and each guide wall projecting forwards and outwards.
Desirably, at least the lower edge portion of each guide wall is inclined inwardly toward its associated carrying surface.
The guide walls promote gentle transfer of the material onto the carrying surfaces and uniform filling of the material onto the conveyor members.
There may be a row of two or more straight heaps side-by-side in a storage plant, and it is preferable to remove ` the material from the facing sides of two adjacent heaps by means o~ a sinale apparatus. For this purpose, the apparatus 3~QS
can have quide walls on each side of each carrier member. Thus a yuide wall projects from each side of each conveyor member and both guide walls are symmetrical about the longitudinal mid-plane of the conveyor member.
However, if the apparatus is being used for discharing a round heap, it is normal to position the apparatus always with the same side against the side of the heap, and the guide walls need only be provided on one side of each carrier member. It is preferable that a guide wall projects from one side only of each conveyor member and the sides of the spaces above carrying surfaces are inclined to the axis of conveyance, i.e. the (cell-like)spaces above the carrying surfaces are oblique to the axis of conveyance.
The carrying surfaces can be spaced a predetermined distance above the floor of the heap so that they do not slide on the floor and not prematurely worn away. For this purpose, the lower side of the carrying surface has projections for keeping the carrying surface away from the floor of the heap.
In this way, the traction members are relieved of the weight of the loaded carrier members and the wear is substantially restricted to that on the projections, which are easily exchangeable; furthermore, the projections enable one to maintain a predetermined, though small, spacing between the bottoms of the carrier members and the floor of the heap because they loosen up the material resting on the floor and prevent a layer of this material pushing the carrier members up out of their correct path.
According to a particular aspect thereof the present invention provides an apparatus for discharging material from a base portion of a side of a heap, comprising: two horizontally spaced apart endless pivoted-link chains forming substantially horizontal upper and lower sections; drive means for revolving the chains to move in a predetermined horizontal d~rection of -3~
i~ 5 travel along tl~e lower sections; and a plurality of adjacent conveyor members each fixed to each of the endless chains and each having a generally horizontal, rearwardly projecting carry-ing surface, the conveyor members being constructed and arranged to permit free passage of material laterally into carrying spaces definea between two adjacent conveyor members and each conveyor member having on at least one side an oblique guide wall for guiding material. from the heap onto the carrying surface of the preceding conveyor member.
- 3a -" 11~3~05 Descri~tion of Preferr~ Embo~imen~.s ~he invention will be further described, by way of example, with reference to the accompanying drawings, in which:-Figure 1 is a partly schematic side view of part of a plant for the storage of particulate materials, including apparatus of the invention;
Figure 2 is a plan view of part of the apparatus, on a larger scale;
Figure 3 is a perspective view of a carrier member of the apparatus; and Figure 4 is a plan view, corresponding to that of ~igure 2, but showing a different embodiment of the carrier member.
~he apparatus of Figure 1 includes a bridge which is of conventional structure and is not shown; the bridge can be moved up against the side of a heap and in general terms extends across the heap, though it will not normally extend across the very top of the heap. If the heap is a straight heap, the bridge will move parallel to the longitudinal axis of the heap, on rails also parallel to the longitudinal axis; if the heap is a round heap, the bridge will swing about a vertical axis approximating to the ccntre of the heap.
The bridge supports a conveyor whose path is fixed in relation to the bridge. The conveyor has two parallel, spaced traction members in the form of pivoted-link chains 1 which are guided around two star wheels 6 adjacent respective ends of the bridge. The two chains 1 are substantially identical and each has a straight lower run or section which extends parallel to the axis of the bridge and is the section which discharges the bulk material.
Spaced conveyor members 3 are fixed between the chains 1. Each conveyor member 3 has a support 2 which is fixed by means of a connection piece 21 with each of the two respective links 11 which face each other on either side of the conveyor member 3. A substantially horizontal carrying surface 31 pro3ects rearwardly from the support adjacent the floor 7 of the heap, i.e. in the direction opposite to the direction of conveyance (indicated with the arrow P) and substantially contacts the fGllowing conveyor member 3.
A preferred form of a cQnveyor member 3 is shown in Figure 3. The conveyor member 3 has a rear wall 32 which forms part of the support 2 and extends down as far as the carrying surface 31, its lower edge being connected with the carrying surface 31. ~he middle part of the carrying surface 31 is flat, but its lateral zones 34 are 3~
incliIled downwardly. ~he micldle part of the rea~ wal] ~2 i8 also flat, but its side ~ones 35 are inclined forwards and have upper, horizontal win~s 33 which project rearwards.
The sec-tions 33 are connected to a top part which comprises two flat pieces 22~ 23, forming a rigid structure~ ~he connection piece 21 (see Figure 1) is fixed to the upper flat piece 22. ~he construction is s~iffened by two struts 36 which extends between the top ~lat piece 22 and the rear wall 32.
A guide wall 4 is provided on each side of the conveyor member 3, fixed to the sections 35. ~he lower edge of each guide wall 4 is adjacent the carrying surface 31 ~nd the guide wall 4 projects forwards and outwards away from the rear wall 32. q'he lower edge zones 41 of the guide walls 4 are inclined forwardly with respec-t to the perpendicular to the axis or direction P of conveyance;
this perpendicular is the line in the vertlcal plane, i.e.
the vertical if the axis o~ conveyance is horizontal~ In effect, the lower edge zones 41 are also lnclined downwards
2~ and towards each other. The whole conveyor member ~ is symmetrical about its longitudinal mid-plane so that it does not matter which side is brought up against the heap.
The lower side o~ the carrying surface ~1 has replaceable projections 3? for sliding along the floor 7 f the heap and keeplng the carrying surface 3~ away from the floor 7.
.:
- . . - ~ . . . .
: , : . ..
7 11~360S
~ i~ur~ ;hows a discllLlrge conveyor having guide~
walls 4 on only onc side of the conveyor members. Conveyor members having guide walls on only one side are lighter and cheaper than those with two guide walls, and this is no disadvantage with round heaps which are normally only discharged using one side of the discharge conveyor. If the heap is to be discharged using only one side of the conveyor members, it is preferred that the sides of the spaces above the carrying surfaces do not make a right angle but an acute angle with the axis of conveyance as this can increase the amount of material taken up by each carrying surface. In Figure 4, the conveyor members would be constructed so that their rear walls were swung slightly in an anti-clockwise direction to achieve this effect.
In operation, the lower run of the discharge conveyor moves in the direction P and the star wheel 6 rotates anti-clockwise. The material at the side of the base of the heap is passed by the respective guide walls 4 into the space between adjacent conveyor members ~ and comes to rest on the carrying surfaces 31. ~hese carrying surfaces 31 are close to each other and substantially form a moveable platform on which the material lies and undergoes no rolling movement during its further transport. As can be seen in Figure 1, the conveyor members 3 have a somewhat ~-shapcd form, and when they reach the star wheel 6, the carrying surfaces ~1 are tilted and the material slides off onto a conveyor 5;
l~V;~ 5 this does not introduce a great amount of rolling movement and the fall need not be very great, so that the transfer onto the conveyor 5 is relatively gentle. Overall, the invention reduces the rubbing of the particles of the material aaainst each other, wear of the particles by friction and fracture of the particles.
It will be realized that as material is removed from the base of the heap, material higher up the heap trickles down to the bottom.
The lower side o~ the carrying surface ~1 has replaceable projections 3? for sliding along the floor 7 f the heap and keeplng the carrying surface 3~ away from the floor 7.
.:
- . . - ~ . . . .
: , : . ..
7 11~360S
~ i~ur~ ;hows a discllLlrge conveyor having guide~
walls 4 on only onc side of the conveyor members. Conveyor members having guide walls on only one side are lighter and cheaper than those with two guide walls, and this is no disadvantage with round heaps which are normally only discharged using one side of the discharge conveyor. If the heap is to be discharged using only one side of the conveyor members, it is preferred that the sides of the spaces above the carrying surfaces do not make a right angle but an acute angle with the axis of conveyance as this can increase the amount of material taken up by each carrying surface. In Figure 4, the conveyor members would be constructed so that their rear walls were swung slightly in an anti-clockwise direction to achieve this effect.
In operation, the lower run of the discharge conveyor moves in the direction P and the star wheel 6 rotates anti-clockwise. The material at the side of the base of the heap is passed by the respective guide walls 4 into the space between adjacent conveyor members ~ and comes to rest on the carrying surfaces 31. ~hese carrying surfaces 31 are close to each other and substantially form a moveable platform on which the material lies and undergoes no rolling movement during its further transport. As can be seen in Figure 1, the conveyor members 3 have a somewhat ~-shapcd form, and when they reach the star wheel 6, the carrying surfaces ~1 are tilted and the material slides off onto a conveyor 5;
l~V;~ 5 this does not introduce a great amount of rolling movement and the fall need not be very great, so that the transfer onto the conveyor 5 is relatively gentle. Overall, the invention reduces the rubbing of the particles of the material aaainst each other, wear of the particles by friction and fracture of the particles.
It will be realized that as material is removed from the base of the heap, material higher up the heap trickles down to the bottom.
Claims (10)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Apparatus for discharging material from a heap, comprising:
a discharge conveyor having two endless parallel traction members extending parallel to each other and spaced conveyor members each fixed to each of the two traction members, each conveyor member having a generally horizontal, rearwardly projecting carrying surface which is adjacent the following conveyor member when the conveyor members are in the section of the conveyor which discharges the material, openings being left on at least one side of the discharge conveyor so that in operation material can enter the openings and lie on the carrying surfaces, and guide walls projecting outwards at least from said one side of the discharge conveyor, the guide walls being for guiding material from the heap through the openings and onto the carrying surfaces;
and means for removing the material from the carrying surfaces.
a discharge conveyor having two endless parallel traction members extending parallel to each other and spaced conveyor members each fixed to each of the two traction members, each conveyor member having a generally horizontal, rearwardly projecting carrying surface which is adjacent the following conveyor member when the conveyor members are in the section of the conveyor which discharges the material, openings being left on at least one side of the discharge conveyor so that in operation material can enter the openings and lie on the carrying surfaces, and guide walls projecting outwards at least from said one side of the discharge conveyor, the guide walls being for guiding material from the heap through the openings and onto the carrying surfaces;
and means for removing the material from the carrying surfaces.
2. The apparatus of claim 1, wherein each conveyor has a transverse wall which extends down as far as the carrying surface.
3. The apparatus of claim 1, further comprising a moveable bridge for extending across the heap, the bridge carrying the traction members.
4. The apparatus of claim 1, wherein each conveyor member is provided with at least one guide wall, each guide wall having a lower edge portion adjacent to the carrying surface and each guide wall projecting forwards and outwards.
5. The apparatus of claim 4, wherein the lower edge portion of each guide wall is inclined inwardly toward its associated carrying surface.
6. The apparatus of claim 1, wherein a said guide wall projects from each side of each conveyor member and both guide walls are symmetrical about the longitudinal mid-plane of the conveyor member.
7. The apparatus of claim 1, wherein a said guide wall projects from one side only of each conveyor member and the sides of the spaces above carrying surfaces are inclined to the axis of conveyance.
8. The apparatus of any one of claims 1, 2 and 4, wherein the lower side of the carrying surface has projections for keeping the carrying surface away from the floor of the heap.
9. The apparatus of anyone of claims 1, 2 and 4, wherein the traction members are pivoted-link chains and each conveyor member is fixed to a link of each of the two chains.
10. Apparatus for discharging material from a base portion of a side of a heap, comprising:
two horizontally spaced apart endless pivoted-link chains forming substantially horizontal upper and lower sections;
drive means for revolving the chains to move in a predetermined horizontal direction of travel along the lower sections; and a plurality of adjacent conveyor members each fixed to each of the endless chains and each having a generally horizontal, rearwardly projecting carrying surface, the conveyor members being constructed and arranged to permit free passage of material laterally into carrying spaces defined between two adjacent conveyor members and each conveyor member having on at least one side an oblique guide wall for guiding material from the heap onto the carrying surface of the preceding conveyor member.
two horizontally spaced apart endless pivoted-link chains forming substantially horizontal upper and lower sections;
drive means for revolving the chains to move in a predetermined horizontal direction of travel along the lower sections; and a plurality of adjacent conveyor members each fixed to each of the endless chains and each having a generally horizontal, rearwardly projecting carrying surface, the conveyor members being constructed and arranged to permit free passage of material laterally into carrying spaces defined between two adjacent conveyor members and each conveyor member having on at least one side an oblique guide wall for guiding material from the heap onto the carrying surface of the preceding conveyor member.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2828233A DE2828233C3 (en) | 1978-06-28 | 1978-06-28 | Device for unstoring bulk material heaps |
| DEP2828233.9 | 1978-07-06 | ||
| AT8A6686/78 | 1978-09-15 | ||
| AT668678A AT355987B (en) | 1978-09-15 | 1978-09-15 | DEVICE FOR RELEASING SCHUETTGUTHALDEN, MIXED BED SYSTEMS OD. DGL. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1103605A true CA1103605A (en) | 1981-06-23 |
Family
ID=25603242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA330,758A Expired CA1103605A (en) | 1978-06-28 | 1979-06-28 | Apparatus for discharging material from a heap |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU533965B2 (en) |
| CA (1) | CA1103605A (en) |
| GB (1) | GB2024140B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417092A (en) * | 2011-07-29 | 2012-04-18 | 大连佳林设备制造有限公司 | Iron chip scraper |
| CN102923495A (en) * | 2012-11-29 | 2013-02-13 | 南通奥普机械工程有限公司 | Material loosening rake of bridge type scraper reclaimer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3602938A1 (en) * | 1986-01-31 | 1987-08-13 | Orenstein & Koppel Ag | DEVICE FOR RELEASING SCHUETTGALHALDE |
-
1979
- 1979-06-27 AU AU48427/79A patent/AU533965B2/en not_active Expired
- 1979-06-28 GB GB7922485A patent/GB2024140B/en not_active Expired
- 1979-06-28 CA CA330,758A patent/CA1103605A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417092A (en) * | 2011-07-29 | 2012-04-18 | 大连佳林设备制造有限公司 | Iron chip scraper |
| CN102923495A (en) * | 2012-11-29 | 2013-02-13 | 南通奥普机械工程有限公司 | Material loosening rake of bridge type scraper reclaimer |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2024140A (en) | 1980-01-09 |
| AU533965B2 (en) | 1983-12-22 |
| AU4842779A (en) | 1980-01-03 |
| GB2024140B (en) | 1983-01-12 |
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