Open-cast mining sunken land reclamation device and system

Abstract

The invention relates to the technical field of land reclamation, in particular to an open-cast mining sunken land reclamation device and system.The open-cast mining sunken land reclamation device comprises a base, a plurality of moving wheels, a traction piece, a soil turning device, two stone crushers and a stone screening assembly, and the stone screening assembly comprises a plurality of large stone screening rods, a small stone screening hopper, two supporting frames and two telescopic components; soil firstly passes through the large stone screening rod, large stones are intercepted, small stones enter the small stone screening hopper, the soil leaks out through the screening groove, the telescopic component drives the supporting frame to rotate, the large stone screening rod and the small stone screening hopper rotate, and large stones and small stones are poured into the stone crusher. In this way, a traditional motor driving mode is replaced by a mode of overturning and dumping through the telescopic component, the situation that large stones cannot be stirred due to insufficient motor power can be avoided, the transfer efficiency and transfer quality of the large stones are improved, and efficient reclamation of sunken land is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of land reclamation, and particularly relates to an open-pit mining depression land reclamation device and system. Background Art

[0002] Currently, in open-pit mining, there will be depressed land after mining. Therefore, it is necessary to backfill and reclaim the depressed land for growing crops. However, after backfilling the depressed land, many stones remaining in the mining will be retained in the backfill soil, which is not conducive to the growth of crops or plants.

[0003] In the prior art, by rotating the material distributor, the stones can be pushed backward onto the transmission sieve frame, and the stones in the soil can be screened. The screened stones are passed backward through the transmission sieve frame into the collection funnel and then can enter the internal of the hammer crusher for crushing, and then are transported and arranged on one side of the reclaimed soil for dividing the planting area.

[0004] However, in the above-mentioned prior art, the material distributor is provided with a rod body outside the rotating shaft, and the rotating shaft drives the rod body to distribute the material. Although it can transport the screened stones, due to the limited length of the rod body of the material distributor and the rotation drive by the motor with limited power, only small-sized stones can be pushed, while it is laborious to push even impossible to push oversized stones, affecting the normal progress of the reclamation of the depressed land. Summary of the Invention

[0005] The purpose of the present invention is to provide an open-pit mining depression land reclamation device and system to solve the problem in the prior art that the material distributor is provided with a rod body outside the rotating shaft, and the rotating shaft drives the rod body to distribute the material. Although it can transport the screened stones, due to the limited length of the rod body of the material distributor and the rotation drive by the motor with limited power, only small-sized stones can be pushed, while it is laborious to push even impossible to push oversized stones, affecting the normal progress of the reclamation of the depressed land.

[0006] To achieve the above purpose, the present invention provides an open-pit mining depression land reclamation device, including a base, a plurality of moving wheels, a traction member, a soil-turning device, two stone crushers and a stone screening assembly. The plurality of moving wheels are sequentially arranged on both sides of the base, the traction member is arranged at one end of the base, the soil-turning device is arranged at one end of the base, and the two stone crushers are sequentially arranged on the base;

[0007] The stone screening assembly includes a plurality of large stone screening rods, a small stone screening hopper, two support frames, and two telescopic components. The base has a groove, an inclined block is arranged inside the small stone screening head, the small stone screening hopper has a plurality of screening grooves, the two telescopic components are sequentially located inside the groove, the plurality of large stone screening rods and the small stone screening hopper are respectively arranged on the corresponding support frames, the two support frames are respectively rotatably connected to the output ends of the corresponding telescopic components, and the plurality of large stone screening rods and the small stone screening hopper are all adapted to the groove.

[0008] Wherein, the stone screening assembly further includes a plurality of first lifting components and two lifting plates. The plurality of first lifting components are sequentially arranged above the base, the output ends of the plurality of first lifting components are respectively fixedly connected to the corresponding lifting plates, one end of the support frame is rotatably connected to the lower part of the lifting plate, and the telescopic component is rotatably connected to the lifting plate.

[0009] Wherein, the stone screening assembly further includes a stone conveying unit, and the stone conveying unit is arranged above the base;

[0010] The stone conveying unit includes a first conveying inclined plate, a second conveying inclined plate, two transverse moving components, two discharging channels, and two discharging inclined plates. The two transverse moving components are symmetrically arranged above the base, the first conveying inclined plate is arranged at the output ends of the two transverse moving components, the second conveying inclined plate is arranged above the base and on one side of the small stone screening hopper, the two discharging channels are respectively communicated with the corresponding stone crushers, and the two discharging inclined plates are respectively arranged on the inner bottom walls of the corresponding stone crushers.

[0011] Wherein, the stone screening assembly further includes an adjusting unit, and the adjusting unit is arranged on one side of the base;

[0012] The adjusting unit includes a support plate and an adjusting component. The support plate is arranged at one end of the base, the adjusting component is arranged above the support plate, the output end of the adjusting component penetrates through the support plate and is fixedly connected to the soil-turning device, and the traction member is fixedly connected to one side of the support plate.

[0013] Wherein, the stone screening assembly further includes a sealing unit, and the sealing unit is arranged above the base;

[0014] The sealing unit includes a bracket and two sealing mechanisms. The bracket is erected above the base, and the two sealing mechanisms are sequentially arranged on the inner top wall of the bracket;

[0015] The sealing mechanism includes a sealing component and a sealing cover. The sealing component is arranged on the inner top wall of the bracket, and the output end of the sealing component is fixedly connected to the sealing cover, and the sealing cover is adapted to the stone crusher.

[0016] Wherein, the stone screening assembly further includes a soil returning unit, and the soil returning unit is arranged at one end of the base away from the soil turning device.

[0017] The soil returning unit includes a trough body, a driving component, a connecting shaft, two threaded rods, two threaded blocks and two soil turning mechanisms. The trough body is arranged at the other end of the base, the driving component is arranged at one end of the trough body, the connecting shaft is located inside the trough body, and one ends of the two threaded rods are symmetrically arranged at both ends of the connecting shaft. The other ends of the two threaded rods are rotatably connected to the trough body, the output end of the driving component is fixedly connected to the corresponding threaded rod, the two threaded blocks are respectively adapted to the corresponding threaded rods, and the two soil turning mechanisms are respectively arranged below the corresponding threaded blocks.

[0018] Wherein, the soil turning mechanism includes a second lifting component, a connecting frame, a U-shaped plate, a rotating component, a plurality of rotating rods and a plurality of soil turning plates. The second lifting component is arranged below the threaded block, the output end of the second lifting component is fixedly connected to the connecting frame, the U-shaped plate is arranged below the connecting frame, the rotating component is arranged on one side of the U-shaped plate, the output end of the rotating component is rotatably connected to the U-shaped plate, the plurality of rotating rods are sequentially arranged at the output end of the rotating component, and the plurality of soil turning plates are respectively arranged at one ends of the corresponding rotating rods.

[0019] The present invention also provides an open-pit mining depression land reclamation system, including the open-pit mining depression land reclamation device.

[0020] For the open-pit mining depression land reclamation device and system of the present invention, it is connected to a tractor or an agricultural vehicle through a towing member, and then drives the base to move. At this time, the soil turning device is started to turn the soil. At the same time, the large stone screening rod and the small stone screening hopper are both inside the soil. The soil first passes through the large stone screening rod to intercept large stones, and small stones enter the small stone screening hopper. The soil leaks out through the screening groove. Then the large stone screening rod and the small stone screening hopper move up through the groove, and then the telescopic component drives the support frame to rotate, so that the large stone screening rod and the small stone screening hopper rotate, and the large stones and small stones are poured into the stone crusher. After being crushed, the two stone crushers respectively put the crushed blocks on both sides of the soil to distinguish the soil areas.

[0021] Through the above structural settings, large stones can be filtered first, and then small stones and large stones are conveyed through corresponding mechanisms respectively. For the small stones with a large quantity in the soil, multiple small stones can be transported at one time through funnel-shaped transfer. For the large stones with a small quantity in the soil, they are screened by screening rods and then the large stones are carried separately, which can reduce the pressure on the small stone screening hopper. At the same time, by using the way of flipping and dumping through the telescopic component to replace the traditional motor drive, the situation that the motor power is insufficient to move the large stones can be avoided, improving the transfer efficiency and transfer quality of the large stones. When there are large stones in the soil, the efficient reclamation of the sunken land can still be ensured. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the description of the embodiments or the prior art will be briefly introduced below.

[0023] Figure 1 It is a schematic structural diagram of the whole of the present invention.

[0024] Figure 2 It is a side view of the whole of the present invention.

[0025] Figure 3 It is a sectional view of the whole of the present invention.

[0026] Figure 4 It is of the present invention Figure 3 Sectional view taken along line A-A.

[0027] Figure 5 It is of the present invention Figure 3 Sectional view taken along line B-B.

[0028] Figure 6 It is of the present invention Figure 3 Enlarged partial structural view at C.

[0029] Figure 7 It is of the present invention Figure 3 Enlarged partial structural view at D.

[0030] 1 - Base, 2 - Movable wheels, 3 - Towing member, 4 - Soil-turning device, 5 - Stone crusher, 6 - Large stone screening rods, 7 - Small stone screening hopper, 8 - Support frames, 9 - Telescopic components, 10 - Groove, 11 - Inclined block, 12 - Screening grooves, 13 - First lifting components, 14 - Lifting plates, 15 - First conveying inclined plate, 16 - Second conveying inclined plate, 17 - Transverse movement components, 18 - Discharge channels, 19 - Discharge inclined plates, 20 - Support plates, 21 - Adjusting components, 22 - Brackets, 23 - Sealing components, 24 - Sealing covers, 25 - Trough body, 26 - Driving components, 27 - Connecting shafts, 28 - Threaded rods, 29 - Threaded blocks, 30 - Second lifting components, 31 - Connecting frames, 32 - U-shaped plates, 33 - Rotating components, 34 - Rotating rods, 35 - Soil-scraping plates. Detailed implementation manners

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0032] Please refer to Figures 1 to 7 The present invention provides an open-pit mining depression land reclamation device, including a base 1, a plurality of movable wheels 2, a towing member 3, a soil-turning device 4, two stone crushers 5 and a stone screening assembly. The stone screening assembly includes a plurality of large stone screening rods 6, a small stone screening hopper 7, two support frames 8 and two telescopic components 9. The base 1 has a groove 10. An inclined block 11 is arranged inside the small stone screening head. The small stone screening hopper 7 has a plurality of screening grooves 12. The stone screening assembly further includes a plurality of first lifting components 13 and two lifting plates 14. The stone screening assembly further includes a stone conveying unit. The stone conveying unit includes a first conveying inclined plate 15, a second conveying inclined plate 16, two transverse movement components 17, two discharge channels 18 and two discharge inclined plates 19. The stone screening assembly further includes an adjusting unit. The adjusting unit includes a support plate 20 and an adjusting component 21. The stone screening assembly further includes a sealing unit. The sealing unit includes a bracket 22 and two sealing mechanisms. The sealing mechanism includes a sealing component 23 and a sealing cover 24. The stone screening assembly further includes a soil scraping-back unit. The soil scraping-back unit includes a trough body 25, a driving component 26, a connecting shaft 27, two threaded rods 28, two threaded blocks 29 and two soil scraping-back mechanisms. The soil scraping-back mechanism includes a second lifting component 30, a connecting frame 31, a U-shaped plate 32, a rotating component 33, a plurality of rotating rods 34 and a plurality of soil scraping-back plates 35.

[0033] Among them, multiple said moving wheels 2 are sequentially arranged on both sides of the base 1, the towing member 3 is arranged at one end of the base 1, the soil turning device 4 is arranged at one end of the base 1, two said stone crushers 5 are sequentially arranged on the base 1, the base 1 has a groove 10, an inclined block 11 is arranged inside the small stone screening head, the small stone screening hopper 7 has multiple screening grooves 12, two said telescopic components 9 are sequentially located inside the groove 10, multiple said large stone screening rods 6 and the small stone screening hopper 7 are respectively arranged on the corresponding support frames 8, two said support frames 8 are respectively rotatably connected to the output ends of the corresponding telescopic components 9, and multiple said large stone screening rods 6 and the small stone screening hopper 7 are all adapted to the groove 10. Connect with a tractor or agricultural vehicle through the towing member 3, thereby driving the base 1 to move. At this time, the soil turning device 4 is started to turn the soil. At the same time, both the large stone screening rod 6 and the small stone screening hopper 7 are located inside the soil. The soil first passes through the large stone screening rod 6 to intercept large stones, and small stones enter the small stone screening hopper 7. The soil leaks out through the screening grooves 12. Then, the large stone screening rod 6 and the small stone screening hopper 7 move upward through the groove 10. Then, the telescopic component 9 drives the support frame 8 to rotate, so that the large stone screening rod 6 and the small stone screening hopper 7 rotate, and the large stones and small stones are poured into the stone crusher 5. After being crushed, the two stone crushers 5 respectively put the crushed blocks on both sides of the soil to distinguish the soil areas; the telescopic component 9 is a cylinder, and the support frame 8 is driven to rotate below the lifting plate 14 through the telescopic movement of the cylinder.

[0034] Secondly, multiple said first lifting components 13 are sequentially arranged above the base 1, the output ends of multiple said first lifting components 13 are respectively fixedly connected to the corresponding lifting plates 14, one end of the support frame 8 is rotatably connected to the lower part of the lifting plate 14, and the telescopic component 9 is rotatably connected to the lifting plate 14. The first lifting component 13 is an electric slide rail. When the first lifting component 13 is started, it can drive the lifting plate 14 to move up and down, and at the same time drive the large stone screening rod 6 and the small stone screening hopper 7 to move up and down in the groove 10, so as to adapt to different soil depths, and can also lift the filtered stones to facilitate transportation to the stone crusher 5 for processing.

[0035] Meanwhile, the stone conveying unit is arranged above the base 1; two transverse moving components 17 are symmetrically arranged above the base 1, the first conveying inclined plate 15 is arranged at the output ends of the two transverse moving components 17, the second conveying inclined plate 16 is arranged above the base 1 and on one side of the small stone screening hopper 7, two discharge channels 18 are respectively communicated with the corresponding stone crushers 5, and two discharge inclined plates 19 are respectively arranged on the inner bottom walls of the corresponding stone crushers 5. The transverse moving component 17 is an electric slide rail. After the large stones move upward, the transverse moving component 17 is started to drive the first conveying inclined plate 15 to be located below the large stone screening rod 6. At this time, the large stone screening rod 6 rotates and inclines, so that the large stones fall on the first conveying inclined plate 15, and then the large stones slide into the corresponding stone crushers 5; after the small stones move upward, the small stone screening hopper 7 is directly rotated to the right, so that the small stone screening hopper 7 is located above the second conveying inclined plate 16. At the same time, the inclined blocks 11 arranged inside can help the small stones slide out better, avoiding the situation of a large number of stones being stuck, and then being conveyed into the corresponding stone crushers 5. After being crushed by the two stone crushers 5, the stones are discharged through the discharge inclined plates 19 and the discharge channels 18, and are thus arranged on both sides of the soil, thereby completing the screening of large stones and small stones for subsequent planting of crops in the soil.

[0036] In addition, the adjusting unit is arranged on one side of the base 1; the support plate 20 is arranged at one end of the base 1, the adjusting component 21 is arranged above the support plate 20, the output end of the adjusting component 21 penetrates through the support plate 20 and is fixedly connected with the soil turning device 4, and the traction member 3 is fixedly connected with one side of the support plate 20. The support plate 20 supports the adjusting component 21. When the adjusting component 21 is started, it drives the soil turning device 4 to move up and down to adjust the depth of soil turning.

[0037] Then, the sealing unit is arranged above the base 1; the bracket 22 is erected above the base 1, and two sealing mechanisms are sequentially arranged on the inner top wall of the bracket 22; the sealing component 23 is arranged on the inner top wall of the bracket 22, the output end of the sealing component 23 is fixedly connected with the sealing cover 24, and the sealing cover 24 is adapted to the stone crusher 5. The bracket 22 supports the sealing mechanism. The sealing component 23 is a cylinder. When the sealing component 23 is started, it drives the sealing cover 24 to move downward, and then covers above the stone crusher 5, so as to avoid stone splashing around during crushing.

[0038] Again, the soil retracting unit is arranged at one end of the base 1 away from the soil turning device 4; the trough body 25 is arranged at the other end of the base 1, the driving component 26 is arranged at one end of the trough body 25, the connecting shaft 27 is located inside the trough body 25, one end of the two threaded rods 28 is symmetrically arranged at the two ends of the connecting shaft 27, and the other ends of the two threaded rods 28 are both rotatably connected to the trough body 25, the output end of the driving component 26 is fixedly connected to the corresponding threaded rod 28, the two threaded blocks 29 are respectively adapted to the corresponding threaded rods 28, and the two soil expelling mechanisms are respectively arranged below the corresponding threaded blocks 29. The trough body 25 supports the entire soil retracting unit, the driving component 26 is a motor, and the driving component 26 is started, and through the connection of the connecting shaft 27, it drives the two symmetrical threaded rods 28 to rotate, cooperates with the threaded blocks 29, drives the two soil expelling mechanisms to move relative to each other, and adjusts the distance between soil expelling.

[0039] In addition, the second lifting component 30 is arranged below the threaded block 29, the output end of the second lifting component 30 is fixedly connected to the connecting frame 31, the U-shaped plate 32 is arranged below the connecting frame 31, the rotating component 33 is arranged on one side of the U-shaped plate 32, the output end of the rotating component 33 is rotatably connected to the U-shaped plate 32, a plurality of rotating rods 34 are sequentially arranged at the output end of the rotating component 33, and a plurality of earthmoving plates 35 are respectively arranged at one end of the corresponding rotating rods 34. The second lifting component 30 is a cylinder, the rotating component 33 is a motor, and the U-shaped plate 32 supports the rotating component 33; since the reclaimed land is usually relatively soft, the soil is easily splashed to both sides under the continuous movement of the tiller 4, the large stone screening rod 6 and the small stone screening bucket 7, which not only affects the beauty of the reclaimed land, but also causes soil loss and reduction of the reclaimed land. After the splashed soil accumulates, multiple reclaimed areas will be connected into one piece, which will be difficult to distinguish and is very unfavorable for subsequent crop planting; therefore, the second lifting component 30 adjusts the height of the return, and then the rotating component 33 is started, driving the rotating rod 34 to rotate, so that the multiple soil-moving plates 35 are in contact with the splashed soil accumulated on both sides of the soil, and then the soil is pushed back into the reclaimed land, thereby avoiding soil waste and ensuring the beauty of the reclaimed land.

[0040] When using an open-pit mining depression land reclamation device according to this embodiment, it is connected to a tractor or an agricultural vehicle through a towing member 3, thereby driving the base 1 to move. At this time, the soil-turning device 4 is activated to turn the soil. At the same time, both the large stone screening rod 6 and the small stone screening hopper 7 are located inside the soil. The soil first passes through the large stone screening rod 6 to intercept large stones, and small stones enter the small stone screening hopper 7. The soil leaks out through the screening groove 12. Then, the large stone screening rod 6 and the small stone screening hopper 7 move upward through the groove 10. Then, the telescopic member 9 drives the support frame 8 to rotate, so that the large stone screening rod 6 and the small stone screening hopper 7 rotate, and the large stones and small stones are dumped into the stone crusher 5. After being crushed, the two stone crushers 5 respectively put the crushed blocks on both sides of the soil to distinguish the soil areas. Through the above structural settings, large stones can be filtered first, and then small stones and large stones are respectively transported through corresponding mechanisms. For the small stones with a large quantity in the soil, multiple small stones can be transported at one time through funnel-shaped transportation. For the large stones with a small quantity in the soil, after being screened by the screening rod, the large stones are transported separately, which can reduce the pressure on the small stone screening hopper 7. At the same time, the method of turning and dumping through the telescopic member 9 is used to replace the traditional motor drive, which can avoid the situation that the motor power is insufficient to move the large stones, improve the transportation efficiency and quality of the large stones, and still ensure the efficient reclamation of the depression land when there are large stones in the soil.

[0041] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand the entire or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. An open-pit mining sunken land reclamation device, comprising a base, a plurality of moving wheels, a traction member, a soil turner and two stone crushers, wherein the plurality of moving wheels are sequentially arranged on both sides of the base, the traction member is arranged at one end of the base, the soil turner is arranged at one end of the base, and the two stone crushers are sequentially arranged on the base, characterized in that: Also included is a stone screening assembly; The stone screening assembly includes a plurality of large stone screening rods, a small stone screening bucket, two support frames and two telescopic parts. The base has a groove, an inclined block is arranged on the inner side of the small stone screening head, the small stone screening bucket has a plurality of screening slots, and the two telescopic parts are sequentially located inside the groove. The plurality of large stone screening rods and the small stone screening bucket are respectively arranged on the corresponding support frames, and the two support frames are respectively rotatably connected to the output ends of the corresponding telescopic parts. The plurality of large stone screening rods and the small stone screening bucket are both adapted to the groove.

2. The open-pit mining sunken land reclamation device according to claim 1, characterized in that: The stone screening assembly also includes a plurality of first lifting components and two lifting plates. The plurality of first lifting components are sequentially arranged above the base. The output ends of the plurality of first lifting components are respectively fixedly connected to the corresponding lifting plates. One end of the support frame is rotatably connected to the bottom of the lifting plate, and the telescopic component is rotatably connected to the lifting plate.

3. The open-pit mining sunken land reclamation device according to claim 2, characterized in that: The stone screening assembly further comprises a stone conveying unit, and the stone conveying unit is arranged above the base; The stone conveying unit includes a first conveying inclined plate, a second conveying inclined plate, two transverse moving parts, two discharge channels and two discharge inclined plates. The two transverse moving parts are symmetrically arranged above the base, the first conveying inclined plate is arranged at the output ends of the two transverse moving parts, the second conveying inclined plate is arranged above the base and is located on one side of the small stone screening bucket, the two discharge channels are respectively connected to the corresponding stone crushers, and the two discharge inclined plates are respectively arranged on the inner bottom walls of the corresponding stone crushers.

4. The open-pit mining sunken land reclamation device according to claim 3, characterized in that: The stone screening assembly further comprises an adjustment unit, and the adjustment unit is arranged on one side of the base; The adjusting unit includes a supporting plate and an adjusting component, wherein the supporting plate is arranged at one end of the base, the adjusting component is arranged above the supporting plate, the output end of the adjusting component passes through the supporting plate and is fixedly connected to the tiller, and the traction member is fixedly connected to one side of the supporting plate.

5. The open-pit mining sunken land reclamation device according to claim 4, characterized in that: The stone screening assembly further comprises a sealing unit, wherein the sealing unit is arranged above the base; The sealing unit includes a bracket and two sealing mechanisms, the bracket is mounted above the base, and the two sealing mechanisms are sequentially arranged on the inner top wall of the bracket; The sealing mechanism comprises a sealing component and a sealing cover. The sealing component is arranged on the inner top wall of the bracket. The output end of the sealing component is fixedly connected to the sealing cover. The sealing cover and the stone crusher are adapted to each other.

6. The open-pit mining sunken land reclamation device according to claim 5, characterized in that: The stone screening assembly further comprises a soil returning unit, wherein the soil returning unit is arranged at an end of the base away from the soil turning device; The soil reversal unit includes a trough body, a driving component, a connecting shaft, two threaded rods, two threaded blocks and two soil-moving mechanisms. The trough body is arranged at the other end of the base, the driving component is arranged at one end of the trough body, the connecting shaft is located inside the trough body, one end of the two threaded rods is symmetrically arranged at both ends of the connecting shaft, the other ends of the two threaded rods are rotatably connected to the trough body, the output end of the driving component is fixedly connected to the corresponding threaded rod, the two threaded blocks are respectively adapted to the corresponding threaded rods, and the two soil-moving mechanisms are respectively arranged below the corresponding threaded blocks.

7. The open-pit mining sunken land reclamation device according to claim 6, characterized in that: The soil-moving mechanism includes a second lifting component, a connecting frame, a U-shaped plate, a rotating component, a plurality of rotating rods and a plurality of soil-moving plates. The second lifting component is arranged below the threaded block, and the output end of the second lifting component is fixedly connected to the connecting frame. The U-shaped plate is arranged below the connecting frame, and the rotating component is arranged on one side of the U-shaped plate. The output end of the rotating component is rotatably connected to the U-shaped plate. The plurality of rotating rods are sequentially arranged at the output end of the rotating component, and the plurality of soil-moving plates are respectively arranged at one end of the corresponding rotating rod.

8. A system for reclamation of sunken land in open-pit mining, characterized in that: It comprises the open-pit mining depression land reclamation device as described in claim 7.

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