A strip continuous dumping device for open-pit mine and a dumping method thereof

Abstract

The present invention provides a continuous stripping device for open-pit mines and a method for discharging the material, comprising a main vehicle, two support vehicles, and a discharging arm. The two support vehicles are located on both sides of the main vehicle, the middle of the discharging arm is placed on the main vehicle, and the two ends are placed on the two support vehicles. When discharging the material in sections, the first section is started first. After the first section is discharged, the second section is started in reverse, and the last section is discharged in this way. Each section of material is discharged in strips. The present invention has a simple structure and is easy to manufacture. It is farther away from the top line of the slope of the discharge working line and is always located on the material discharged by the previous discharge belt, making the operation safer. The discharge arm is supported by three points, and the force is more reasonable, which is conducive to stable operation. The strip material belt gradually formed from the inside to the outside is conducive to the self-weight compaction of the material after discharge, and the step slope is more stable. Compared with the existing discharge machine discharge to form a lattice, the strip material belt is easier to level, and the bulldozer's work workload is smaller.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of frame continuous rejection device, in particular to a kind of frame continuous rejection device of open-pit mine and its rejection method. BACKGROUND

[0002] The dump truck is composed of receiving arm, machine body, discharge arm and other parts, and is the earth-moving equipment of open-pit mine continuous and semi-continuous mining process system. The open-pit mine stripping material transported by the belt conveyor on the earth-moving face is discharged through the rotatable discharge arm to achieve a large earth-moving width. At present, the use of the equipment for open-pit mine earth-moving has the advantages of continuous operation, large capacity, flexible equipment position, etc., but also has many problems restricting its application range. First, the length of the discharge arm determines the size of the earth-moving range of the equipment. Using a small discharge arm can ensure the flexibility of the equipment, but the operation range is too small, and frequent relocation affects the work efficiency. The longer the discharge arm, the larger the earth-moving range, but the larger the earth-moving dead zone, and the increase of the discharge arm will lead to rapid increase of the weight of the equipment, reduction of the flexibility of the equipment, and danger of subsidence during operation. Second, the existing earth-moving machine has a complex structure, and the material needs to be transferred multiple times. The transfer point in the center of the machine inevitably causes problems such as dust, material scattering and blockage, resulting in poor stability of the equipment. Third, the long discharge arm is a cantilever beam structure hinged to the center of the machine body. The equipment is unevenly stressed, and a high machine body is needed to provide suspension support, and a special discharge arm counterweight and balance arm are also needed, which further increases the instability of the machine body. Fourth, the earth-moving forms an alternating working face in the form of an arc-shaped ridge and a ditch, which requires a large amount of grading work by the bulldozer to meet the requirements of the subsequent equipment running and relocation. At the same time, the earth-moving site needs to stand on the working face formed by the earth-moving to operate, which not only causes poor stability of the equipment due to subsidence, but also requires high timeliness of the grading work, poor safety of the equipment cross operation and high management difficulty. SUMMARY

[0003] In view of the problems existing in the prior art, the present application provides an open-pit mine frame continuous rejection device and a rejection method thereof. The rejection device uses flexible adjustment multi-point support, so the whole device is evenly stressed, has a simple structure, good flexibility and good work stability. The rejection strip is easier to flatten, and the rejection strip and the flattening strip are operated separately, which is easy to manage.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an open-pit mine frame continuous rejection device, comprising one main vehicle, two support vehicles and a discharge arm; the main vehicle comprises a caterpillar vehicle, a rotating disc, four large-stroke amplitude adjusting mechanisms, a rotating support wheel and a receiving hopper, the rotating disc is arranged on the upper surface of the caterpillar vehicle, the four large-stroke amplitude adjusting mechanisms are arranged in a rectangular shape on the upper surface of the rotating disc, the receiving hopper is arranged on the four large-stroke amplitude adjusting mechanisms, and the rotating support wheel is arranged in the middle of the rotating disc through a spring support;

[0005] The support vehicle includes a crawler, a rotating disk and four small-stroke amplitude modulation mechanisms. The rotating disk is arranged on the upper surface of the crawler, and the four small-stroke amplitude modulation mechanisms are arranged in a rectangular shape on the upper surface of the rotating disk. The discharge arm consists of a steel structure truss and a discharge belt conveyor installed on the truss.

[0006] The two supporting vehicles are located on both sides of the main vehicle, the one close to the soil discharge working surface is the driven supporting vehicle, and the one away from the soil discharge working surface is the active supporting vehicle. The middle part of the discharge arm is placed on the rotating support wheel, and the two ends are placed on the small-stroke amplitude modulation mechanism of the supporting vehicle. The end of the discharge arm on the active supporting vehicle side is hinged to the small-stroke amplitude modulation mechanism on the active supporting vehicle away from the soil discharge working surface.

[0007] Furthermore, two slide rails are provided on the upper surface of the rotating disk, and two small-stroke amplitude modulation mechanisms on the same side are respectively arranged in one slide rail.

[0008] Furthermore, five groups of rotating support wheels are arranged in parallel on the rotating disk on the main vehicle.

[0009] Furthermore, the discharge arm is located directly below the discharge port of the receiving funnel.

[0010] A method for discharging waste from a continuous discharging device for an open-pit mine, wherein a driven support vehicle, a main vehicle, and an active support vehicle are arranged side by side and parallel to a discharging working surface, and a discharge port of a discharging arm is located above the top line of a discharging step;

[0011] The belt conveyor for the discharge working surface is arranged along the discharge working surface and is divided into two layers by the belt conveyor unloading vehicle for the discharge working surface. The end of the upper layer is located obliquely above the receiving hopper, and the lower layer passes through the crawler vehicle under the main vehicle. The belt conveyor for the discharge working surface is used to transport materials that need to be discharged. The belt conveyor unloading vehicle for the discharge working surface rotates, and the materials are unloaded from the upper layer into the receiving hopper 8. The materials transported by the belt conveyor for the discharge working surface are transferred to the discharge belt conveyor through the receiving hopper.

[0012] When the first strip of material begins to be discharged, the main vehicle and the driven support vehicle remain stationary, and the active support vehicle moves toward the side of the discharge working surface in coordination with the material discharge speed to continuously discharge the material, keeping the discharge port of the discharge arm always above the top line of the discharge step slope. When the width of the discharged material reaches the width of the first strip, the material discharge is stopped, and the discharge of the first strip of material in the first strip is completed.

[0013] Then the active support vehicle returns to the position where the material was first discharged. After returning, the main vehicle, the driven support vehicle and the active support vehicle simultaneously move 2 to 5 meters along the direction of the soil discharge working surface. After moving to the position, the material discharge work of the first and second strips of the first strip is started in the same way as the first strip of the first strip. When the width of the discharged material reaches the width of the first strip, the material discharge is stopped. At this time, the material discharge work of the second strip of the first strip is completed; and so on, until the material discharge work of the last strip of the first strip is completed, and all the strips of material form a complete first strip of material;

[0014] The second layer of material is discharged with the first layer of material as the soil discharge step. The second layer of material discharge method is the same as the first layer of material discharge method, and the second layer of material discharge direction is opposite to the first layer of material discharge direction; and so on, until the discharge of the last layer of material is completed.

[0015] Furthermore, the distance between the driven support vehicle and the top line of the slope is not less than 1 / 3 of the height of the soil discharge step and not more than 1 / 4 of the length of the discharge arm; the distance between the driven support vehicle and the main vehicle is not more than 3 / 4 of the length of the discharge arm, and the distance between the active support vehicle and the main vehicle is not more than 2 / 3 of the length of the discharge arm; the distance between the driven support vehicle, the active support vehicle and the main vehicle is not less than 1m.

[0016] Compared with the prior art, the present invention has a simple structure and is easy to manufacture. It eliminates the receiving arm, large swing, and discharging arm counterweight of the original soil discharger, reducing the height and weight of the entire machine; a transfer link is reduced during the discharge process, avoiding the material transportation of the receiving arm and the discharging arm, and the system is simpler and more reliable; the discharge device provided by the present invention is farther away from the top line of the slope of the soil discharge working surface and is always located on the previous discharged material, making the operation safer; the discharge arm is supported by three points, and the force is more reasonable, which is conducive to stable operation, and can be extended or retracted according to actual conditions, and has a wider range of use; from the inside out The gradually formed strip-shaped material belt is conducive to the compaction of the material after discharge by its own weight, and the step slope is more stable; compared with the arc-shaped material belt formed by the existing earth-discharging machine, the strip-shaped material belt is easier to level, and the bulldozer's working workload is smaller; the belt conveyor drive system of the discharge arm can be arranged at the head or the tail of the machine, and can utilize existing mature drive technology and equipment; the amplitude modulation mechanism of the support vehicle is installed on the slide rail, which reduces the centering requirements and unnecessary internal stress of the equipment during operation; the five sets of rotating support wheels of the main machine, combined with the amplitude modulation mechanism on the support, can solve the problem of telescopic arm tilting caused by uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic top view of the working state of the disposal device of the present invention;

[0018] Figure 2 A schematic side view of the working state of the disposal device of the present invention;

[0019] Figure 3 This is the main vehicle structure front view of the present invention;

[0020] Figure 4 A side view showing the positional relationship between the main vehicle and the belt conveyor for the soil disposal working surface of the present invention;

[0021] Figure 5 This is a front view of the support vehicle structure of the present invention;

[0022] Figure 6 This is a top view of the support vehicle structure of the present invention;

[0023] In the figure: 1. Main vehicle, 2. Support vehicle, 2-1. Driven support vehicle, 2-2. Active support vehicle, 3. Discharge arm, 4. Track vehicle, 5. Rotating plate, 6. Rotating support wheel, 7. Spring bracket, 8. Receiving hopper, 9. Large-stroke amplitude modulation mechanism, 10. Small-stroke amplitude modulation structure, 11. Slide rail, 12. Discharge working surface, 13. Truss, 14. Discharge belt conveyor, 15. Discharge working surface belt conveyor, 16. Slope top line, 17. First span, 18. Second span, 19. Discharge working surface belt conveyor unloading vehicle. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figures 1 to 6 As shown, the present invention provides an open-pit mine section continuous discharge device, which includes a main vehicle 1, two support vehicles 2 and a discharge arm 3.

[0027] like Figure 3 As shown, the main vehicle 1 includes a crawler 4, a rotating disc 5, four large-stroke amplitude modulation mechanisms 9, a rotating support wheel 6 and a receiving funnel 8. The rotating disc 5 is arranged on the upper surface of the crawler 4 and can rotate around the center of the crawler 4. During normal operation, the rotation centerline is perpendicular to the ground surface.

[0028] Four large-stroke amplitude modulation mechanisms 9 are arranged in a rectangular shape on the upper surface of the rotating disk 5, and the receiving funnel 8 is arranged on the four large-stroke amplitude modulation mechanisms 9. The large-stroke amplitude modulation mechanisms 9 can realize the adjustment of the receiving funnel 8 in the vertical direction;

[0029] Five sets of rotating support wheels 6 are arranged in parallel in the middle of the rotating disk 5 on the main vehicle 1. The rotating support wheels 6 are arranged in the middle of the rotating disk 5 through spring brackets 7. The rotating support wheels 6 can rotate freely, and the rotation center line is horizontal. When working normally, the five rotation centers are at the same horizontal height;

[0030] like Figure 5 As shown, the support vehicle 2 includes a crawler 4, a rotating disk 5 and four small-stroke amplitude modulation mechanisms 10. The rotating disk 5 is arranged on the upper surface of the crawler 4. The four small-stroke amplitude modulation mechanisms 10 are arranged in a rectangular shape on the upper surface of the rotating disk 5. The discharge arm 3 is composed of a steel structure truss 13 and a discharge belt conveyor 14 installed on the truss 13.

[0031] like Figure 2 As shown, the two supporting vehicles 2 are respectively located on both sides of the main vehicle 1, of which the one close to the soil discharge working line 12 is the driven supporting vehicle 2-1, and the one away from the soil discharge working line 12 is the active supporting vehicle 2-2. The middle part of the discharge arm 3 is placed on the rotating support wheel 6, and the discharge arm 3 is located just below the discharge port of the receiving funnel 8. Both ends of the discharge arm 3 are respectively arranged on the small-stroke amplitude modulation mechanism 10 of the supporting vehicle 2, and the end of the discharge arm 3 on the side of the active supporting vehicle 2-2 is hinged to the small-stroke amplitude modulation mechanism 10 on the active supporting vehicle 2-2 away from the soil discharge working line 12.

[0032] During actual work, the two support vehicles 2 may not be at the same height, or other reasons may cause the discharge arm 3 to have a certain inclination angle. Under the support of the spring bracket 7, the rotation centers of the five sets of rotating support wheels 6 may not be at the same level, so as to maintain their effective support for the discharge arm 3.

[0033] In actual operation, it is impossible for the two support vehicles 2 to maintain completely consistent speeds while moving. Inconsistent speeds will cause the discharging arm 3 to be bent by external forces and will also cause the discharging arm 3 to shift on the driven support vehicle 2-1, affecting normal material discharge. In order to solve this problem, Figure 6 As shown, two slide rails 11 are provided on the upper surface of the rotating disk 5, and two small-stroke amplitude modulation mechanisms 10 on the same side are respectively arranged in one slide rail 11. When the speeds of the two support vehicles 2 are inconsistent during movement, the small-stroke amplitude modulation mechanism 10 can slide a certain distance in the slide rail 11 to provide sufficient time for the support vehicle 2 to adjust its speed.

[0034] Preparation work for material discharge: The driven support vehicle 2-1, the main vehicle 1 and the active support vehicle 2-2 are arranged side by side and parallel to the earth discharge working line 12, and the discharge port of the discharge arm 3 is located above the top line 16 of the earth discharge step;

[0035] like Figure 1 and Figure 4As shown, the discharge working surface belt conveyor 15 is arranged along the discharge working surface 12 and is divided into two layers by the discharge working surface belt conveyor unloader 19. The end of the upper layer is located obliquely above the receiving hopper 8, and the lower layer passes through the crawler vehicle 4 under the main vehicle 1. The discharge working surface belt conveyor 15 is used to transport materials to be discharged. The discharge working surface belt conveyor unloader 19 rotates, and the materials are unloaded from the upper layer into the receiving hopper 8. The materials transported by the discharge working surface belt conveyor 15 are transferred to the discharge belt conveyor 14 through the receiving hopper 8.

[0036] Discarded materials by frame - first frame 17:

[0037] When the first strip 17 of material begins to be discharged, the main vehicle 1 and the driven support vehicle 2-1 remain stationary, and the active support vehicle 2-2 moves toward the side of the soil discharge working line 12 in accordance with the material discharge speed to perform continuous material discharge operations, so as to keep the discharge port of the discharge arm 3 always above the top line 16 of the soil discharge step. When the width of the discharged material reaches the width of the first strip 17, the material discharge is stopped, and the discharge work of the first strip of material of the first strip 17 is completed.

[0038] Then the active support vehicle 2-2 returns to the position where the first strip of material begins to be discharged. After returning, the main vehicle 1, the driven support vehicle 2-1 and the active support vehicle 2-2 move 2 to 5 meters along the discharge working line 12 at the same time, and the belt conveyor unloading vehicle 19 of the discharge working surface is also adjusted accordingly so that the end of the upper layer is located obliquely above the receiving funnel 8; after moving into position, the discharge of the second strip of material of the first width 17 is started in the same way as the discharge of the first strip of material of the first width 17. When the width of the discharged material reaches the width of the first width 17, the material discharge is stopped. At this time, the discharge of the second strip of material of the first width 17 is completed, and the second strip of material of the first width 17 and the second strip of material are connected together; and so on, until the discharge of the last strip of material of the first width 17 is completed, all strip materials constitute the complete first width 17 material.

[0039] Discarded materials in sections - Section 2 18:

[0040] When the second piece 18 of material begins to be discharged, the belt conveyor 15 of the discharge working surface is removed first, and then the main vehicle 1, the driven support vehicle 2-1 and the active support vehicle 2-2 are simultaneously moved as a whole to one side of the discharge working line 12 by the width of the first piece 17. Figure 2 As shown, the second piece 18 of material is discharged with the first piece 17 of material as the soil discharge step, the second piece 18 of material discharge method is the same as the first piece 17 of material discharge method, the second piece 18 of material discharge direction is opposite to the first piece 17 of material discharge direction; Figure 1As shown, the first piece 17 of material is discharged from right to left. After the first piece 17 is discharged, the second piece 18 of material is discharged from left to right. Similarly, the third piece of material is discharged using the second piece 18 of material as a soil discharge step and is again discharged from right to left, and so on, until the discharge of the last piece of material is completed.

[0041] To ensure the safe operation of the driven support vehicle 2-1 and the torque balance of the discharge arm 3, the distance between the driven support vehicle 2-1 and the top line of the slope shall not be less than 1 / 3 of the height of the discharge step and not greater than 1 / 4 of the length of the discharge arm 3; to make full use of the length of the discharge arm 3 to increase the width of the discharge belt and improve the production capacity of the system, the distance between the driven support vehicle 2-1 and the main vehicle 1 shall not be greater than 3 / 4 of the length of the discharge arm 3, and the distance between the active support vehicle 2-2 and the main vehicle 1 shall not be greater than 2 / 3 of the length of the discharge arm 3; to ensure the safe operation of the discharge working face equipment, the distance between the driven support vehicle 2-1, the active support vehicle 2-2 and the main vehicle 1 shall not be less than 1m.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent replacements, and improvements made to the above embodiments based on the technical essence of the present invention shall be included in the scope of protection of the technical solution of the present invention.

Claims

1. A continuous disposal device for open-pit mines, characterized by: It includes a main vehicle (1), two support vehicles (2) and a discharge arm (3). The main vehicle (1) includes a crawler vehicle (4), a rotating disk (5), four large-stroke amplitude modulation mechanisms (9), a rotating support wheel (6) and a material receiving funnel (8), wherein the rotating disk (5) is arranged on the upper surface of the crawler vehicle (4), the four large-stroke amplitude modulation mechanisms (9) are arranged in a rectangular shape on the upper surface of the rotating disk (5), the material receiving funnel (8) is arranged on the four large-stroke amplitude modulation mechanisms (9), and the rotating support wheel (6) is arranged in the middle of the rotating disk (5) through a spring bracket (7); The support vehicle (2) comprises a crawler vehicle (4), a rotating disk (5) and four small-stroke amplitude modulation mechanisms (10), wherein the rotating disk (5) is arranged on the upper surface of the crawler vehicle (4), and the four small-stroke amplitude modulation mechanisms (10) are arranged in a rectangular shape on the upper surface of the rotating disk (5); The discharge arm (3) is composed of a steel structure truss (13) and a discharge belt conveyor (14) installed on the truss (13); Two supporting vehicles (2) are respectively located on both sides of the main vehicle (1), wherein the side close to the soil discharge working surface (12) is the driven supporting vehicle (2-1), and the side away from the soil discharge working surface (12) is the active supporting vehicle (2-2). The middle part of the discharge arm (3) is placed on the rotating support wheel (6), and the two ends are respectively placed on the small stroke amplitude modulation mechanism (10) of the supporting vehicle (2). The end of the discharge arm (3) located on the side of the active supporting vehicle (2-2) is hinged to the small stroke amplitude modulation mechanism (10) on the side away from the soil discharge working surface (12) on the active supporting vehicle (2-2); The distance between the driven support vehicle (2-1) and the top line of the slope is not less than 1 / 3 of the height of the soil discharge step and not more than 1 / 4 of the length of the discharge arm (3); the distance between the driven support vehicle (2-1) and the main vehicle (1) is not more than 3 / 4 of the length of the discharge arm (3); the distance between the active support vehicle (2-2) and the main vehicle (1) is not more than 2 / 3 of the length of the discharge arm (3); and the distance between the driven support vehicle (2-1), the active support vehicle (2-2) and the main vehicle (1) is not less than 1m.

2. The open-pit mine continuous waste disposal device according to claim 1, characterized in that: Two slide rails (11) are provided on the upper surface of the rotating disk (5), and two small-stroke amplitude modulation mechanisms (10) on the same side are respectively arranged in one slide rail (11).

3. The open-pit mine continuous waste disposal device according to claim 1, characterized in that: Five groups of rotating support wheels (6) are arranged in parallel on the rotating disk (5) on the main vehicle (1).

4. The open-pit mine continuous waste disposal device according to claim 1, characterized in that: The discharge arm (3) is located directly below the discharge port of the receiving funnel (8).

5. The method for discharging waste from a continuous discharging device for open-pit mines according to claim 1, characterized in that: The driven support vehicle (2-1), the main vehicle (1) and the active support vehicle (2-2) are arranged side by side and parallel to the earth-discharging working surface (12), and the discharge port of the discharge arm (3) is located above the slope top line (16) of the earth-discharging step; The soil discharging working surface belt conveyor (15) is arranged along the soil discharging working surface (12), and the soil discharging working surface belt conveyor (15) is divided into two layers by the soil discharging working surface belt conveyor unloading vehicle (19), the end of the upper layer is located obliquely above the receiving hopper (8), and the lower layer passes through the crawler vehicle (4) at the bottom of the main vehicle (1); the soil discharging working surface belt conveyor (15) is used to transport materials that need to be discharged, and the soil discharging working surface belt conveyor unloading vehicle (19) rotates, and the materials are unloaded from the upper layer into the receiving hopper (8), and the materials transported by the soil discharging working surface belt conveyor (15) are transferred to the discharge belt conveyor (14) through the receiving hopper (8); When the first strip (17) of material begins to be discharged, the main vehicle (1) and the driven support vehicle (2-1) remain stationary, and the active support vehicle (2-2) moves toward one side of the soil discharge working surface (12) in coordination with the material discharge speed to perform continuous material discharge operations, keeping the discharge port of the discharge arm (3) always above the top line (16) of the soil discharge step. When the width of the discharged material reaches the width of the first strip (17), the material discharge is stopped, and the material discharge work of the first strip of the first strip (17) is completed at this time; Then the active support vehicle (2-2) returns to the position where the material is to be discharged. After the return, the main vehicle (1), the driven support vehicle (2-1) and the active support vehicle (2-2) simultaneously move 2 to 5 meters along the direction of the soil discharge working surface (12). After moving to the position, the material discharge work of the second strip of the first strip (17) is started in the same way as the material discharge of the first strip of the first strip (17). When the width of the discharged material reaches the width of the first strip (17), the material discharge is stopped. At this time, the material discharge work of the second strip of the first strip (17) is completed. This process is repeated in this way until the last strip of material of the first piece (17) is discarded and all the strips of material form a complete first piece of material (17); The material discharge of the second piece (18) is based on the material of the first piece (17) as the soil discharge step. The material discharge method of the second piece (18) is the same as that of the first piece (17). The material discharge direction of the second piece (18) is opposite to that of the first piece (17). And so on, until the last piece of material is discarded.

Images