JP3402948B2 - Portal reclaimer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portal reclaimer provided in a pile for storing coal, iron ore and the like.

[0002]

2. Description of the Related Art Conventionally, reclaimers as shown in FIGS. 21 and 22 have been used in storage areas for coal, iron ore and the like. In FIG. 21, 100 is a general storage pile, 81 is a traveling platform that travels along a track along the storage pile 100, 82 is a swivel frame that is rotatably disposed on the traveling platform 81, and 83 is a swivel frame 82. An elevating boom having an intermediate portion pivotally supported on the upper and lower sides, 84 is a bucket wheel provided at the tip of the elevating boom 83, 85 is a balance weight provided at the rear end of the elevating boom 83, 86
Is a boom hoisting cylinder arranged between the hoisting boom 83 and the swivel frame 82, 87 is a ground payout conveyor arranged below the traveling platform 81, and 88 is the hoisting boom 83.
An upper conveyor, 89 is a chute provided above the ground payout conveyor 87 and below the traveling platform 81,
1 is a bulk cargo piled up on the storage pile 100.
In the reclaimer shown in FIG. 21, while swinging and hoisting the hoisting boom 83, the bucket wheel 84 scoops the bulk load 101 on the storage pipe 100, and the scraped bulk load 101 is conveyed to the conveyor 88 on the hoisting boom 83.
In passing, it dropped from the rear end of the conveyor 88 into the chute 89, and is so that not sent onto the ground dispensing conveyor 87. If the revolving frame 82 is turned 180 degrees and revolved, it is possible to perform the work of discharging the bulk load of the storage pile 100a on the opposite side.

The reclaimer shown in FIG. 22 is a type suitable for a pile 100 or the like having an inverted triangular cross section.
Therefore, this reclaimer is a non-turning type traveling platform 9
By operating the hoisting rope 93 from the upper part of the pillar 92 of 1, the scraper type conveyor 94 whose front end side is bent is provided so as to be capable of hoisting, and the lower surface of the scraper type conveyor 94 is arranged along the upper surface of the mountain of the bulk load 101. The bulk load 101 is circulated on the lower surface of the conveyor 94 in the direction of scraping the bulk load 101 as indicated by the arrow, so that the bulk load 101 is discharged onto the ground.
It is designed to pay out upwards.

[0004]

However, as shown in FIG.
In the conventional reclaimer shown in FIG. 1, the rear balance weight 85 extends over the adjacent storage pile 100a. Therefore, if the reclaimer installation space between adjacent piles 100, 100a is not wide enough, /> can interfere with pile equipment end of the wells 85 are adjacent, the circumstances in the arrangement of the adjacent other equipment, will be constrained in its projecting length. Further shortening the overhang balun Suweito 85, since that must increase the balance weight by weight, not lead economically weight gain. Moreover, if the balance weight 85 is arranged at an angle to the up-and-down boom 83 at an angle, it is easier to engage with the rear equipment, but there is a problem that the balance of the entire reclaimer is deteriorated.

In addition, a flat and wide storage pile 100
When one reclaimer is provided on one side of the pile 100, it is necessary to lengthen the hoisting boom 83 so as to cover the entire width. On the other hand, when the reclaimers are provided on both sides of the pile 100, Neither is economical because it will be paid from both sides. In order to store coal efficiently in a small site area, a semi-underground pool pile 1 as shown in Fig. 23.
No. 00 is used, but if a reclaimer of this type of pile 100 shown in FIG. It becomes difficult to scoop out the portion 101a, and there is a problem in payout performance.

The reclaimer shown in FIG. 22 is a non-swirling type and is used only for discharging the bulk load 101 of the storage pile 100 on one side, but when it is used for a pile having a flat bottom and a large width, as shown in FIG. When it is used for a semi-underground pool pile, it has the same problem as the reclaimer of the type shown in FIG. 21, and when it is applied to the pool pile 100, the remaining amount of the bulk load 101 that cannot be scooped out is remarkable. There is a problem that it increases.

An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a portal reclaimer capable of coping with a coal yard where the piles adjacent to each other are in close contact with each other and the installation space is not wide enough.

[0008]

In order to achieve this object, in the present invention, a traveling type gate-shaped structure provided across a pile for storing piles of bulk cargo, and the gate-shaped structure Both ends are supported by both legs via an elevating mechanism, and an elevating girder that moves up and down horizontally, a traverse trolley provided on the elevating girder, and a traverse trolley supported on the traverse trolley and rotating around the axis of the elevating girder. A bucket wheel provided to be driven, a horizontal transfer conveyor provided on the lifting girder, one end connected to an end of the horizontal transfer conveyor, and the other end connected to an above-ground delivery conveyor. In a portal reclaimer, each of which is provided with a bulk load transfer means movably provided together with the structure,
The mounting means can only be fixedly supported on one leg of the portal structure.
One side directly on the lifting girder horizontal conveyor end or horizontal
With the end of the lift conveyor on the lifting girder connected to the conveyor
It is connected so that it can move relative to the top and bottom, and the lower part is a ground payout conveyor.
It is composed of a chute portion connected to the .

[0009]

[0010]

The present invention further includes a scraping means supported by the frame portion of the traverse trolley and squeezing and moving one by one between the lower corners of the bucket wheel and the center both ends of the wheel ring in the bucket rotation direction or the reverse direction. ing.

Further, according to the present invention, any one or a plurality of horizontal conveyors on the elevator girder, lift conveyors, tilting conveyors, and a conveyor system including a chute portion is constructed in a shielding structure by a seal belt, a shielding plate or the like.

Further, according to the present invention, the side surface of the chute portion on the side of the end of the horizontal conveyer conveyor is shielded by a vertically movable seal belt, and the seal belts are used as upper and lower end flanges of a plate cover at the end of the horizontal conveyer conveyor. The seal belt is connected so that it can follow the vertical movement of the horizontal conveyor.

According to the present invention, the bucket wheel is supported on the traverse trolley, and is vertically moved together with the elevating girder by elevating the elevating girder, and the traverse of the traverse trolley moves the entire width range of the pile in the width direction and the traveling of the reclaimer. Thus, the entire length range of the pile is moved in the length direction, and the pile is rotatably driven around the axis of the lifting girder, and the bulk load of the entire range of the pile is discharged. Therefore, even in the case of semi-underground pool pile,
The bulk load on the pile can be discharged to the walls on both sides without leakage.

Further, at the end position in the length direction of the pile,
When the scraping means on the rear side with respect to the lateral direction of the bucket wheel is swung to the lower corner of the end wall of the pile,
Since the loose load at the lower corner that does not hang on the bucket wheel is scraped by the scraping means and is scooped up by the bucket wheel, the loose load at the lower corner of the wall of the pile can be discharged to the maximum extent by the bucket of the bucket wheel.
The bulk cargo picked up by the bucket wheel is then transferred to the horizontal conveyor on the lifting girder, and is dropped directly from the horizontal conveyor into the chute section or through the tilt conveyor into the chute section, with or without the lift conveyor. , Is discharged onto a ground conveyor that is trip-engaged with an impact roller below the chute.

[0016] Further, the bulk cargo dropped from the bucket wheel onto the horizontal conveyor by way of the chute on the traverse trolley trips the wall on the side of the horizontal conveyor and the upper part of the wall and the top of the bucket wheel within the traverse range of the traverse trolley. The dust is prevented from scattering by being shielded by a seal belt or the like that covers. Similarly, the connection between the end of the horizontal conveyor and the chute fixedly supported by the gate structure is connected to a tunnel-type steel plate cover that covers the top, bottom, left, and right of the end of the horizontal conveyor or the lift conveyor, and works vertically. The dust is prevented from scattering to the outside by being shielded by a seal belt or the like, and the horizontal conveyor is connected to the chute at an arbitrary height so that the bulk goods on the horizontal conveyor can be discharged.

Further, in the structure in which the chute is supported on the movable frame and driven, the horizontal girder conveyor or the lift conveyor and the tilting conveyor are used for comparison even when the lifting girder is lowered to a low height to perform the discharging operation of the bulk load. Since the bulk load can be loaded onto the chute at an extremely high position, the chute can be switched to and discharged onto a two-line ground discharging conveyor in which the chute is arranged in parallel.

Further, when a lift conveyor is provided by connecting to the end of a horizontal conveyor on the lifting girder, the lifting girder can be lowered near the bottom of the pile, so that the diameter of the bucket wheel can be reduced, thereby reducing the weight of the traverse trolley. It is possible to reduce the weight of the lifting girder. If the pile is deep,
Although the bucket wheel cannot be made smaller, it can be used for deeper pool piles by increasing the bucket wheel diameter.

Further, by providing scraping means capable of swinging out and retracting on both sides of the lower corner of the scooping side of the bucket wheel and the opposite side thereof, the end portion in the longitudinal direction of the semi-underground pool-like pile is provided. It became possible to discharge loose cargo by reclaimer with minimum unloaded cargo.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail based on the illustrated embodiments.

(First Embodiment) FIG. 1 is an overall front view of a portal reclaimer according to a first embodiment of the present invention, and FIG. 2 is a view of FIG.
It is a side view of II-II arrow. In FIGS. 1 and 2, 1
00 is a storage pile formed in the shape of a semi-underground pool with a certain depth, and 101 is a bulk cargo piled on the pile 100. Reference numeral 1 denotes a self-propelled portal structure provided across the pile 100. The portal structure 1 is a rigid leg 1
a, a swing leg 1b, a main girder 1c, and a traveling device 1d.
In this portal structure 1, both legs may be rigid legs.

Reference numeral 2 denotes a rigid leg 1a and a rocking leg 1b of the portal structure 1.
An elevating mechanism 5 composed of a hoisting device 3 and a counter balance device 4 respectively installed in the above, and an elevating girder 5 horizontally supported by connecting both ends to the elevating mechanism 2;
Is a traverse trolley provided on the hoisting girder 5, 7 is a bucket wheel supported on the traverse trolley 6 so as to be rotationally driven around the axis of the hoisting girder 5, and 8 is provided on substantially the entire length of the hoisting girder 5. A horizontal transfer conveyor 9 is a bulk load transfer means which is fixedly supported in the vertical direction on the outside of the rigid leg 1a of the portal structure 1. The bulk load transfer means 9 has a side portion of the horizontal transfer conveyor 8. By connecting the end portion and the lower end to the above-ground payout conveyor 10, the chute portion is configured as a single unit.

FIG. 3 is a plan view taken along arrows III-III in FIG. 1, FIG. 4 is a side view taken along arrows IV-IV in FIG. 3, FIG. 5 is an enlarged view of a V portion in FIG. 4, and FIG. FIG. 6 is an enlarged cross-sectional view taken along the VI section of FIG. Figure 3
4 and 5, the lifting girder 5 is a girder structure having a substantially U-shaped cross section with a falling floor 5a.
Traverse rails 11 are provided on the upper end surface of b. A traverse rack rail 12 is provided on the outer surface of the upper end of one wall 5b of the lifting girder 5, and a horizontal conveyor 8 is provided at the center of the falling floor 5a. The lifting girder 5 may have a configuration in which a lift conveyor shown in a second embodiment (FIG. 16) described later is provided.

The traverse trolley 6 has a carriage portion 6a supported on the traverse rail 11 so as to be traversable via wheels 6b. As shown in FIGS. 4 and 5, the pair of traverse motors 1 are provided.
The drive gear 14 of No. 3 meshes with the rack rail 12 so as to traverse forward and backward. Also, traverse trolley 6
Has a pair of frame portions 6c extending downwardly from the carriage portion 6a so as to wind the lifting girder 5, and a plurality of support rollers 15 provided on the carriage portion 6a and the frame portion 6c are used to ring the bucket wheel 7. The inner peripheral surface of the frame 7a is rotatably supported, and the front bucket scooping side of the ring frame 7a is guided by a guide ring 15a. A chute 6d is arranged at the center of the carriage 6a of the traverse trolley 6.

The bucket wheel 7 is a ring frame 7
It has a plurality of buckets 7b fixed to the outer peripheral surface of a at intervals, and an opening 7c for unloading is provided on the outer peripheral surface of the ring frame 7a on the receiving side of each bucket 7b. Further, as shown in FIGS. 4 and 6, the bucket wheel 7 includes a ring gear 16 having external teeth or internal teeth on the outer surface of the ring frame 7 a, and the drive gear of the bucket wheel motor 17 on the traverse trolley 6. 18 by meshing with the ring gear 16, and is configure <br/> driven to rotate at a controlled rate in the clockwise direction indicated by an arrow in FIG.

Next, FIGS. 7 and 8 are perspective views showing an embodiment of the hoisting device 3 and the counter balance device 4 of the elevating mechanism 2 in FIG. In FIG. 7, the hoisting device 3
Is a pair of drums 20 arranged on the rigid leg 1a side and the rocking leg 1b side in FIG. 22 and upper sheaves 23, 24, 25, and each is wound around four upper and lower sheave blocks 26, 27, and the other ends are connected to the opposite ends of the equalizer beam 28 so as to intersect the opposite leg side. It is constituted by four hoisting wires 21 attached as a unit. Then, the lower sheave block 27 of the hoisting device 3 is
Fixed to both ends of the lifting girder 5, other sheaves 22 to 25,
The sheave block 26 and the drum 20 are the legs 1 in FIG.
It is fixedly arranged on the upper part of a and 1b.

Further, in FIG. 8, the counter balance device 4 in FIG. 2 is a balance in which the ends are connected to the respective symmetrical ends of the four equalizer beams 30a to 30d fixedly arranged at the left and right ends of the lifting beam 5. The wire 31 is provided. Moreover, the counterbalance device 4 moves the balance wire 31 to the fixed sheaves 32 to 3 on the rigid leg 1a and the swing leg 1b in FIG.
2 fixed sheaves 3 on the counterweight 34 through 3
5 in an endless manner, and each fixed sheave 35 on the counterweight 34 on each side of the rigid leg 1a and rocking leg 1b is attached to the left and right equalizer beams 30a, 30b and 30 of the lifting beam 5.
It is configured to be supported by c and 30d. As shown in FIG. 1, the counterweight 34 includes the rigid leg 1a and the swing leg 1
b is a diagram shown to not guide portion provided on the inclined surface is supported to be vertically sliding movement, and is configured to move up and down in response to vertical movement of the lifting girder 5 by the winding device 3.

Next, FIG. 9 is a front view schematically showing an embodiment of the dustproof structure of the horizontal conveyor 8 provided on the lifting girder 5 in FIG. 1, and FIG. 10 is a view taken in the direction of arrows X to X in FIG. FIG. In FIGS. 9 and 10, reference numeral 36 denotes a drive pulley 37 arranged at the end of the horizontal conveyor 8 on the side of the swing leg 1b in FIG.
Is a head pulley disposed at the end of the rigid leg 1a in FIG.
Is a belt tension adjusting part provided in the lower middle part of the conveyor belt, 8a is a conveyor belt, 8b is a support roller of the conveyor belt, 8c is a pressing roller of the conveyor belt, 3
9 is a wind shield plate on both sides which also serves as a support frame for the horizontal conveyor 8; 40 is a seal belt which covers the upper part of the wind shield plate 39 and is stretched within the moving range of the traverse trolley 6; 41 is on the traverse trolley 6; Seal belt 4 arranged in a gate shape
A zero trip roller 42 is a dust-proof connection box (described later) provided to connect the end of the horizontal conveyor 8 on the head pulley 37 side to the bulk load transfer means 9 (chute portion 9a). The dust-proof connection box 42 is attached to the end of the horizontal conveyor 8 when a lift conveyor as shown in FIG. 16 is provided at the end.

By the way, the gap on both sides of the trolley 6 of the seal belt 40 bypassed via the trip roller 41, the end opening of the wind shield plate 39 on the swing leg 1b side in FIG. 1, and the head pulley 37 of the seal belt 40. Although not shown, a curtain rubber and a cover are provided in the gap between the end portion on the side and the conveyor belt 8a to prevent dust from blowing out.

Next, FIG. 11 is a front view schematically showing an embodiment of the dustproof structure by enlarging the portion of the bulk load transfer means 9 of FIG. 1, and FIG. 12 is a plan view taken along arrows XII-XII of FIG. Fig. 13
11 is a side view taken along arrows XIII to XIII in FIG. 11, and FIG.
It is a side view of XIV-XIV arrow. 11, FIG. 12 and FIG. 14, the bulk load transfer means 9 has a main body portion 43 having a U-shaped wall having an opening 43a on the side facing the horizontal conveyor 8. The bulk load transfer means 9 includes a plurality of stages of inclined guide plates 44 provided between the opposite side walls of the main body 43, a plurality of stages of shelf plates 45 provided on the back wall, and a ground delivery conveyor at the lower end. The chute part 9a is composed of a single unit consisting of a top 10 and a payout opening 46 provided so as to face it. Moreover, at the outlet 46, the impact bar 47 for absorbing the impact of the falling loose load 101, the baffle plate 48 for aligning the load, and the ground delivery conveyor 1
An impact roller 49 that supports a constant length portion of the belt of 0 is disposed.

Further, in FIG. 11, 50 is a main body 43.
Upper and lower tunnel-shaped seal belt covers provided on the outer side of the back wall of the main body 43, 51 vertical groove guides provided to face each other on the edge of the main body 43 on the side of the opening 43a, and 52 a main body 43. It is provided so as to endlessly rotate inside the seal belt cover 50, below the impact roller 49, inside the groove guide 51, and above the main body 43 via a plurality of guide rollers 53 arranged above It is an endless seal belt.

In FIGS. 11 and 13, the endless seal belt 52 is connected to the upper and lower flange ends of the dustproof connection box 42 attached to the head end of the horizontal conveyor 8 at a position within the grooved guide 51 to make a dustproof connection. The vertical flange end of the box 42 is configured so as to be engaged with and movable in the groove guide 51. In addition, the head pulley 3 of the horizontal conveyor 8
The end of 7 is arranged so as to project into the main body 43 through the opening 42a in the dustproof connection box 42, and the gap of the opening 42a is shielded by the curtain rubber 42b. Therefore,
The dustproof connection box 42 moves up and down as the elevator girder 5 moves up and down in FIG. 1, and the endless seal belt 52 follows the movement of the dustproof connection box 42 to shield the side surface of the bulk load transfer means 9 on the opening side. Are being held. FIG. 15 is a side view showing a state in which the above-mentioned reclaimer is moved to an end position of the bulk cargo 101 piled up on the pile 100 and the dispensing of the bulk cargo 101 is started by driving the bucket wheel 7. In addition, the above-mentioned chute portion 9a is similar to that shown in FIGS.
Instead of providing the endless seal belt 52 as shown in FIG. 5, a surface facing the end of the horizontal conveyor 8 is a steel wall, and the steel wall has a three-step bucket wheel excavation height shown in FIG. It is also possible to simply provide a bulk load receiving opening corresponding to the end height position of the horizontal conveyor 8.

Using the reclaimer constructed as described above, FIG.
A description will be given below of the procedure for the dispensing operation of the bulk goods 101 piled up on the pile 100 inside. The reclaimed portal structure 1 shown in FIG.
1 to the dispensing start position (for example, the end position in the length direction of the pile 100 shown in FIG. 15), the elevator mechanism 2 is driven to move the elevator girders 5 up and down, and the bucket wheel 7 is raised to the height of the pile of bulk goods 101. Set it according to the edge position of Sasano.
Next, the bucket 7b is kept at a constant biting depth, and the traverse trolley 6 is traversed from one end of the lifting girder 5 to the other end at a constant speed while rotating the bucket wheel 7 in the front scooping direction. Then, when the traverse trolley 6 reaches the other end of the lifting girder 5, the reclaimer is moved forward by the depth of the biting of the bucket 7b, and the traverse trolley 6 is traversed in the opposite direction, and thereafter the same operation as described above is performed. Repeat.

During the scooping operation of the bulk load 101 on the pile 100, the bucket wheel 7 rotates in the vertical plane parallel to the side wall of the pile 100, so that the bucket wheel 7 is provided on both sides of the frame portion 6c of the traverse trolley 6. The pile side wall can be sufficiently moved close to the pile side wall and
It becomes possible to pay out 1 to the maximum. When the portal reclaimer travels, the lower end of the bulk load transfer means 9 located on the side of the rigid leg 1a in FIG. 1 is trip-engaged with the belt 10a of the ground delivery conveyor 10 by the impact roller 49 as shown in FIG. While moving. By this operation, the bucket wheel 7 rotates about the axis of the lifting girder 5 at the position shown in FIG. 15, and the bulk load 101 is scooped by the bucket 7b. The scooped-out bulk load 101 is dropped from inside the bucket 7b into the chute 6d on the traverse trolley 6 at a position directly above the lifting girder 5, as shown in FIG.
From above to the horizontal conveyor 8 below.

By the horizontal feed operation of the horizontal conveyor 8 toward the rigid leg 1a side, the bulk load 101 on the horizontal conveyor 8 is moved from the end of the head pulley 37 to the rigid leg 1a as shown in FIGS. It is thrown into the chute part 9a on the side. The bulk load 101 thrown into the chute portion 9a moves inside the chute portion 9a as shown in FIG.
4 flow along the inclined surface of No. 4 and meander while repeatedly colliding with the shelf plate 45 and the wall surface at the back and fall to the lower outlet 46, and absorb the impact with the impact bar 47 shown in FIG. The width of the plate 48 is adjusted, and the plate 48 is passed over the belt 10a of the above-mentioned ground payout conveyor 10 moving on the impact roller 49.

On the other hand, a traverse trolley 6 is mounted on the lifting girder 5 in FIG.
9 traverses, the seal belt 40 stretched on the horizontal conveyor 8 in FIG. 9 bypasses the trip roller 41 on the traverse trolley 6 and thus detours. Therefore, the bucket wheel 7 shoots the trolley 6 at this position. Dust is generated by the bulk load 101 dropped on the 6d and the horizontal conveyor 8. However, the generated dust is shielded by curtain rubber and a cover (not shown) provided in the gaps between the windshields 39 and the seal belt 40 on both sides of the horizontal conveyor 8 and is not discharged to the outside. To be prevented. Further, when the lifting girder 5 in FIG. 1 moves up and down, the dustproof connection box 42 shown in FIG. 9 at the end of the head pulley 37 of the horizontal conveyor 8 is installed in the groove guide 51 of the chute portion 9a together with the endless seal belt 52. And the end of the head pulley 37 of the horizontal conveyor 8 is located in the opening 42a of the dustproof connection box 42 shown in FIG.
The bulk cargo 101 is loaded into the chute portion 9a from the 7th end. Therefore, the dust generated in the chute portion 9a is always in contact with the endless seal belt 52 and the dustproof connection box 42 shown in FIG.
Further, the curtain rubber 42b shown in FIG. 13 provided in the opening 42a in the dust-proof connection box 42 is used to shield the dust-proof connection box 42 from being discharged to the outside.

Therefore, according to the portal reclaimer having such a structure, the pile 1 for storing piles having a relatively large width is used.
Also in 00, as compared with the conventional boom type reclaimer shown in FIG. 21 and the conventional scraper type reclaimer shown in FIG. 22, the weight of the balance weight is increased and the boom length is extended by increasing the boom length. As a result, the problem of interference with the adjacent equipment due to the boom on the balance weight side can be solved, and the site area for installing the reclaimer can be reduced to reduce the equipment cost. Also,
Even in the semi-underground pool pile 100, the bulk cargo 100 on the side wall of the pile 100 can be efficiently discharged. Further, the discharging operation is simplified, and the shielding structure that also uses the endless seal belt 52 can efficiently prevent the scattering of dust, and the transfer of the bulk load 101 from the horizontal conveyor 8 to the chute portion 9a can be performed at any height. Can be done at.

(Second Embodiment) FIG. 16 is an overall front view of a portal reclaimer according to a second embodiment of the present invention, FIG. 17 is a side view taken along arrows XVII to XVII in FIG. 16, and FIG. XVII
It is a rear view taken along the arrows I to XVIII. In this embodiment, the structure of the gate structure, the structure of the lifting girder, the structure of the conveyor transport system on the lifting girder, and the structure of the bulk load transfer means are changed. 16 to 18, the portal structure 1 of the reclaimer includes a pair of rigid legs 1a and 1a ', a main girder 1c, a reinforcing brace 1e, and a traveling device 1d. Further, one of the rigid legs 1a and 1a 'may be a swing leg.

The elevating girder 65 is constructed by forming a stepped portion 65a with both ends thereof inclined upwards and the stepped portion 65a is higher than the intermediate horizontal portion 65b. Rigid legs 1a, 1 of the gate-shaped structure 1 are provided at both ends via a lifting mechanism 2 (a hoisting device 3 and a counterbalance device 4) similar to the above.
It is supported horizontally on the part a '. 66 is a lifting girder 65
One of the rigid legs 1a side of the conveyor support ledge overhanging outside, 67 is a lift conveyor provided from above the conveyor support 66 to the end of the intermediate horizontal portion 65b of the lifting girder 65, and 68 is a lift conveyor 67 is a shielding cover, and the horizontal conveyor 8 is the intermediate horizontal portion 6 of the lifting girder 65.
5b, one end of which is connected to the lift conveyor 67. Instead of providing the lift conveyor 67 separately, the end of the horizontal conveyor 8 is inclined outward and the conveyor support base 66 is provided in the same manner as in the first embodiment.
You may make it the structure extended upward.

Reference numeral 70 denotes an outside of one rigid leg 1a of the lifting girder 65, and auxiliary rails 10 'provided at intervals in parallel to the rail on the rigid leg 1a side are provided on both sides of the auxiliary rail 70. Two rows of above-ground payout conveyors, and 69 are lift conveyors 67 or separate type roses provided so as to connect between the overhanging end of the horizontal conveyor 8 also serving as a lift conveyor and two rows of aboveground payout conveyors 10 '. It is a means for transferring cargo.

The bulk load transfer means 69 has a movable base 71 which is arranged astride the rail of the rigid leg 1a and the auxiliary rail 70 and is movable. The movable base 71 is a connecting member. It is connected to the portal structure 1 via 74. That is, the bulk load transfer means 69 is fixedly supported on the moving base 71, and is connected to the two rows of the ground delivery conveyors 10 'in the same configuration as that shown in FIG. 14 by the discharge port whose lower end is formed in a bifurcated shape. The discharge port switching type chute 72, one end of which is vertically rotatably supported on the chute 72 of the movable base 71, and the other end of which is vertically rotatably and vertically slidable below the conveyor support base 66. Tilting conveyor 73 movably supported
It consists of and.

Horizontal conveyor 8 and lift conveyor 6
The entrances of 7, the tilting conveyor 73, and the chute 72 can be configured similarly to the horizontal transfer conveyor shown in FIGS. 9 to 10 to have a shielding structure. Other configurations are the same as those in the first embodiment. Further, in the configuration of the second embodiment described above, the configuration of the elevating girder 65 and the configuration of the transfer conveyor system provided on the elevating girder 65 are, as described above, directly replaced with the elevating girder 5 of the first embodiment. It can be applied if combined. On the contrary, it is also possible to apply the construction of the lifting girder of the first embodiment in combination with that of the second embodiment.

In this embodiment, when the reclaimer is discharged, the movable platform 71 is driven by the connecting member 74 along with the traveling movement of the gate-shaped structure 1 so that the lifting girder 65 is moved up and down and one rigid leg of the lifting girder 65 is moved. The end of the tilting conveyor 73 pivotally supported by the conveyor support 66 on the 1a side moves up and down while sliding in the length direction. The bulk cargo 101 picked up from the pile 100 by the bucket wheel 7 passes from the horizontal conveyor 8 on the lifting girder 65 to the lift conveyor 67, or the horizontal conveyor having a lift-up portion extended as in the first embodiment. It is directly transferred from the extended end of 8 to the tilt conveyor 73.

When the lifting girder 65 is located at the height of the operation for exposing the bottom of the pile 100, the stepped portion 65a of the lifting girder 65 is formed.
Depending on the conveyor support 66 and the above-ground delivery conveyor 10 '
A constant height interval is maintained between the lift conveyor 67 and the horizontal transfer conveyor 8 and the bulk load 101 is passed from the extended end of the lift conveyor 67 or the horizontal transfer conveyor 8 onto the tilt conveyor 73 below the conveyor support 66 to tilt. It is thrown into the chute 72 from the other end of the conveyor 73.

By using the lift conveyor 67 or by forming an upwardly inclined extension on the horizontal conveyor 8 to increase the connection height with the bulk load transfer means 69 side, the lifting girder 65 and the bucket. It is possible to obtain a relatively large amount of downward movement of the wheel 7 from the ground surface, and it is possible to obtain an effect that the wheel 7 can be applied to the pool-like pile 100 having a larger depth. When the pool depth is not large, the bucket wheel diameter can be made smaller than that in the first embodiment, and the lifting girder 65 can be made lighter. The bulk load 101 in the chute 72 is switched to either side of the bifurcated discharge port by the switching guide, and the two rows of the ground delivery conveyor 10 'are used.
Can be paid to either side. Other actions and effects are similar to those of the first embodiment.

(Third Embodiment) FIG. 19 is a side view of another embodiment corresponding to FIG. 4 of the bucket wheel 7 used in the first embodiment, and FIG. 20 is a front view taken along the line XX-XX in FIG. Is.
In FIGS. 19 and 20, this embodiment is arranged so as to face both sides of the lower portion of the bucket wheel 7 shown in FIG. 4 and is supported on the lower portion of the frame portion 6c of the traverse trolley 6. It is configured by additionally providing the scraping means 75.

The bulk load scraping means 75 includes the frame portion 6c.
Of the beam 75a of a certain length supported on the lower surface of the lower horizontal member by two link pieces 75c of a thickness so that the parallel links can move, and the beam 75a is biased toward the scooping side of the bucket wheel 7. A rectangular scraping plate 75b projecting downward at a half length position, and a drive cylinder 75d connected between the lower surface of the lower horizontal member of the frame portion 6c and one link piece 75c. It is composed of. Therefore, in the bulk load scraping means 75, the rectangular scraping plate 75b is moved between the solid line position and the chain line position 75 '(lower corner position of the bucket wheel 7 on the scooping side of the bucket wheel 7) of FIG. It is designed so that each side can be shaken or pulled independently. Also,
Although not shown, the scraping plate 75b can be provided not only in the lower corner of the scooping side of the bucket but also in the lower corner of the opposite bucket lowering side so as to be swingable.

As shown in FIG. 19, when the bucket wheel 7 reaches the foremost end of the pile 100 by discharging the bulk cargo 101 at the floor surface height of the pile 100 and reaches the foremost end of the pile 100, the pile 100 is rotated only by the scooping rotation. In the lower corner portion of the front wall of the above, a large amount of unreachable bulk cargo remains, which is indicated by reference numeral 101e. At this position, the bucket wheel 7 is shown in FIG.
As shown by the arrow of 0, traverse leftward
When performing the pay-out operation of the bucket wheel 7, the loose load scraping means 75 on the rear side with respect to the traveling direction of the bucket wheel 7 is moved to the swing position 7.
Send to 5'and hold. In this state, when the bucket wheel 7 is laterally traversed, the rectangular scraping plate 75b scrapes the bottom portion of the residual load indicated by reference numeral 101e and collapses the residual load. Since the collapsed residual load is scooped up by the bucket 7b of the bucket wheel 7, the remaining amount of the bulk load 101 is reduced to the minimum amount indicated by reference numeral 101g, and the amount of payout by the reclaimer is increased.

The present invention is not limited to the examples of the above-described embodiment, but various design changes can be made within the scope of the claims.

[0050]

In summary, the portal reclaimer of the present invention has a traveling portal structure provided over a pile for storing piles of bulk cargo, and an elevating mechanism on both legs of the portal structure. And both ends of the elevator girder that are vertically moved, a traverse trolley provided on the elevating girder, and a bucket supported on the traverse trolley and rotationally driven around the axis of the elevating girder. A wheel, a horizontal conveyor provided on the lifting girder, one end of which is connected to the end of the horizontal conveyor and the other end of which is connected to the above-ground delivery conveyor, and is provided so as to be movable together with the portal structure. Since it is configured with bulk loading and unloading means,
The problem of interference caused by the existing boom type reclaimer's components extending over adjacent equipment and piles, the problem of increasing the balance weight by lengthening the boom, and the conventional boom type and scraper type reclaimer It solves all the problems that require two reclaimers for one pile and the problem that a large amount of unpaid unpaid load occurs in a semi-underground pool pile, and it has a wide large pile and a semi-underground pool pile. It is possible to carry out the operation of discharging unbalanced cargo with only one unit over the entire area of the above, which can reduce the site and the number of installed reclaimers and the weight.

Further, the portal reclaimer of the present invention is a lifting girder in which the bulk load transfer means is fixed to one leg of the portal structure and the side portion is directly connected to the end of the horizontal conveyor or the horizontal conveyor. It is connected to the upper lift conveyor end so that it can move up and down relatively, and the lower part is composed of a chute part connected to the above-ground delivery conveyor, so the reclaimer structure is compact and the operation is simple, and the depth is deeper. It can be used for large pool piles and can reduce the weight of the lifting girder.

[0052]

Further, since the portal reclaimer of the present invention is provided with the scraping means capable of swinging and retracting one by one facing the lower corners of the bucket wheel, the semi-underground pool pile end in the longitudinal direction. It is possible to discharge unbalanced cargo by minimizing the unloaded cargo in the lower corner of the wall.

In the portal reclaimer of the present invention, any one or a plurality of horizontal conveyors on the lifting girder, lift conveyors, tilt conveyors, and chute sections is constructed to have a shielding structure such as a seal belt. Therefore, the dust generated from the reclaimer during the discharging operation can be shielded in each device unit to prevent the dust from scattering.

Further, in the portal reclaimer of the present invention, the side surface of the chute portion fixedly supported on the portal structure on the side of the end of the horizontal conveying conveyor is connected to the seal belt, which is vertically movable. The cover at the end of the horizontal conveyor conveys it so that it can move up and down, preventing dust from scattering at the chute and transferring bulk cargo from the horizontal conveyor to the chute at any height. be able to.

[Brief description of drawings]

FIG. 1 is an overall front view of a portal reclaimer according to a first example of an embodiment of the present invention.

FIG. 2 is a side view taken along arrows II-II in FIG.

FIG. 3 is a plan view taken along line III-III of FIG.

FIG. 4 is a side view taken along arrows IV-IV in FIG.

FIG. 5 is an enlarged side view showing a V portion of FIG.

6 is an enlarged cross-sectional view taken along the arrow VI in FIG.

FIG. 7 is a perspective view of a configuration example of the hoisting device in FIG.

8 is a perspective view of a configuration example of the counter balance device of FIG.

FIG. 9 is a front view schematically showing an example of a dustproof structure of a horizontal conveyor.

10 is a cross-sectional view taken along the arrows X to X in FIG.

FIG. 11 is a front view schematically showing an example of a dustproof structure of a chute portion.

FIG. 12 is a plan view taken along arrows XII-XII in FIG.

13 is a side view taken along arrows XIII to XIII in FIG.

FIG. 14 is a side view taken along arrows XIV-XIV in FIG.

FIG. 15 is a side view showing a state at the start of a payout operation of the bucket wheel unit.

FIG. 16 is an overall front view of a portal reclaimer according to a second embodiment of the present invention.

FIG. 17 is a side view taken along arrows XVII to XVII in FIG.

FIG. 18 is a rear view taken along arrow XVIII-XVIII in FIG.

FIG. 19 is a side view corresponding to FIG. 4 according to the third embodiment of the present invention.

20 is a front view taken along arrows XX to XX in FIG.

FIG. 21 is an overall front view of a conventional reclaimer.

FIG. 22 is an overall front view of another conventional reclaimer.

FIG. 23 is a cross-sectional view when the reclaimer of FIGS. 21 and 22 is applied to a semi-underground pool pile.

[Explanation of symbols]

1 Gate structure 1a, 1a 'rigid legs 1b swinging leg 1c Main girder 1d traveling device 1e Reinforcing brace 2 Lifting mechanism 3 hoisting device 4 Counter balance device 5,65 lifting girder 5a Dropped floor 5b side wall 6 Traverse trolley 6a Truck section 6b wheels 6c frame part 6d shoot 7 bucket wheel 7a ring frame 7b bucket 8 Horizontal conveyor 8a, 10 conveyor belt 8b Belt support roller 8c Belt pressing roller 9,69 Bulk load transfer means 9a, 72 chute section 10, 10 'above-ground delivery conveyor 10a, 10'a conveyor belt 11 Traverse rail 12 rack rails 13 Traverse motor 14 Drive gear 15 Support roller 15a guide ring 16 link gear 17 Bucket Wheel Motor 18 drive gear 20 winding drum 21 winding wire 22 Lower sheave 23, 24, 25 Upper Sheep 26 Above sheave block 27 Lower sheave block 28, 30a-30b Equalizer beam 31 balance wire 32, 33 Above fixed sheave 34 Counter weight 35 Weight side fixed sheave 36 Drive pulley 37 head pulley 38 Belt tension adjuster 39 Wind shield and conveyor support rod 40 seal belt 41 Trip Roller 42 Dustproof connection box 42a opening 43 Body 43a opening 44 Inclined guide plate 45 shelves 46 outlets 47 Impact Bar 48 baffle plate 49 Impact roller 50 seal belt cover 51 Groove type guide 52 Endless seal belt 65a Stepped portion 66 Conveyor support 67 Lift conveyor 68 Shielding cover 70 Auxiliary rail 71 Mobile stand 72 shoots 73 Tilting conveyor 74 Connecting material 75 Rubbing means 75 'Draw-out position of scraping means 75a beam 75b scraping plate 75c link piece 75d drive cylinder 100 piles for storage 101 bulk goods 101a, 101e, 101g Unbalanced load

─────────────────────────────────────────────────── ─── Continuation of front page (72) Hisaya Myojin 4-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd. Hiroshima Works (56) Reference JP-A-54-95478 (JP, A) JP-A-49-33388 (JP, A) Actual development S55-50042 (JP, U) JP-B 37-5614 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65G 65/20 B65G 63/00

Claims (4)

(57) [Claims] 1. A traveling type gate structure provided across a pile for storing piles of bulk cargo, and both ends of the gate structure are supported by both legs of the gate structure via an elevating mechanism and horizontally. An elevating girder that moves up and down, a traverse trolley that is provided on the elevating girder, a bucket wheel that is supported on the traverse trolley and that is rotationally driven around the axis of the elevating girder, and that is provided on the elevating girder. Horizontal conveyor,
In a portal reclaimer having one end connected to the end of the horizontal conveyor and the other end connected to the above-ground delivery conveyor, each of which is provided with bulk load transfer means movably provided together with the portal structure. , The bulk load transfer means
Is fixedly supported on one leg of the portal structure and has a side portion.
Directly on the lifting girder on the horizontal conveyor end or horizontal conveyor
Up and down the lift conveyor end on the lifting girder connected to the
Connected to each other so that they can move relative to each other
A gate-shaped reclaimer characterized by being configured with a chute section provided as above . 2. The frame is supported on the cross girder trolley.
The lower side of the bucket wheel and the wheel ring
Bucket rotation direction or opposite direction, one side between the center positions
The gate-shaped reclaimer according to claim 1, further comprising a scraping unit that can be moved toward and away from the gate. 3. A horizontal conveyor and a riff on the lifting girder.
Of conveyor systems including conveyors, tilt conveyors, and chutes
Shield one or more with a seal belt, shield plate, etc.
Portal reclaimer according to claim 1, characterized by being configured to the structure. 4. The end of the horizontal conveyor of the chute section
Shield the side of the plug-in side with a seal belt that can move up and down
The seal belt at the end of the horizontal conveyor.
The horizontal conveyor is connected to the upper and lower ends of the flange
The portal reclaimer according to claim 1 , wherein the seal belt is configured to be capable of following the vertical movement of the seal .