Strip mine steep slope mining device and method

Abstract

The invention belongs to the technical field of strip mine mining, particularly relates to a strip mine steep slope mining device and a strip mine steep slope mining method, and aims to solve the problem that an existing strip mine steep slope mining device cannot realize integration of crushing and transportation of ores, the following scheme is provided: the strip mine steep slope mining device comprises a steep slope working slope, and a track is arranged outside the steep slope working slope; a power chassis is arranged above the rail, four symmetrical moving wheels are arranged at the bottom of the power chassis, the outer portions of the moving wheels make contact with the rail, and a box is fixedly connected to the upper side of the power chassis. According to the open-pit mine steep slope mining device and method disclosed by the invention, ore mined by the open-pit mine steep slope can be transported and crushed integrally, so that the process that the ore is transported to a treatment plant by a vehicle to be crushed is directly shortened, and the time consumed by an ore treatment procedure is greatly shortened; and the mining and processing efficiency of the device on the ore is ensured, the time is saved, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of open-pit mining, and in particular to an open-pit steep slope mining device and method. Background Art

[0002] Steep slope mining is a general term for the process methods, technical measures and mining procedures used in the steepening of open-pit mine rock stripping work. It is an effective process measure developed to balance the stripping ratio of the entire production period, postpone part of the rock stripping amount, and save infrastructure investment in response to the technical and economic characteristics of the initial large amount of rock stripping in sunken open-pit mines and the production stripping ratio being greater than the average stripping ratio.

[0003] After the existing open-pit steep slope mining equipment mines the ore, it is necessary to use vehicles to transport the ore out of the mine before further crushing the ore. This greatly prolongs the ore mining and processing process, reduces mining efficiency and increases costs. Summary of the invention

[0004] The invention discloses an open-pit steep wall mining device and method, aiming to solve the technical problem that the existing open-pit steep wall mining device in the background technology cannot realize the integrated crushing and transportation of ore.

[0005] The present invention proposes an open-pit mine steep wall mining device, including a steep wall working wall, a track is arranged on the outside of the steep wall working wall, a power chassis is arranged above the track, and four symmetrical moving wheels are arranged at the bottom of the power chassis, the outsides of the moving wheels are in contact with the track, a box body is fixedly connected to the upper side of the power chassis, a rectangular opening is opened on the upper side of the box body, a feed hopper is fixedly connected in the rectangular opening, and a crushing and transportation integrated module is arranged on the box body, the crushing and transportation integrated module includes two crushing rollers, the two crushing rollers are both located in the box body, and a support plate is movably connected to a side of the box body close to the steep wall working wall, a conveyor belt 1 is arranged above the support plate, and the conveyor belt 1 is located above the feed hopper, a dust reduction module is arranged on the box body, the dust reduction module is located below the crushing roller, and the dust reduction module includes conveyor belt 2, and a water tank is fixedly connected to the outside of the box body.

[0006] By providing a steep wall working platform, tracks, power chassis, mobile wheels, box, feed hopper, crushing and transportation integrated module and dust reduction module, the device can use the crushing and transportation integrated module to transport and crush the ore mined from the steep wall of the open-pit mine, directly shortening the process of vehicles transporting the ore to the processing plant for crushing, greatly reducing the time consumed by the ore processing procedure, ensuring the efficiency of the device in mining and processing the ore, saving time and reducing costs.

[0007] In a preferred embodiment, the outer part of the box body is provided with two symmetrical circular holes, and the two circular holes are movably connected with rotating shafts, and the outer parts of the two rotating shafts are respectively fixedly connected with the inner walls of the two crushing rollers, and the blades on the two crushing rollers are staggered, and the outer part of one of the rotating shafts is fixedly connected with gear 1, and the outer part of the other rotating shaft is fixedly connected with rotating roller 2, and gear 1 and rotating roller 2 are both located outside the box body; a round rod is movably connected with a side of the box body close to gear 1, and the outer part of the round rod is fixedly connected with gear 2, which meshes with gear 1, and the outer part of the round rod is fixedly connected with rotating roller 1, and the outer parts of rotating roller 1 and rotating roller 2 are provided with the same belt, and a motor 1 is fixedly connected with a side of the box body close to rotating roller 1, and a motor 1 is fixedly connected with a motor 2. The output end of the machine one is connected to the side of the round rod away from the box body through a coupling, and two symmetrical guide plates are fixedly connected to the inner wall of the box body; a fixed frame is fixedly connected to the upper side of the support plate, and two symmetrical transmission rollers one are movably connected to the fixed frame, and the outsides of the two transmission rollers one are in contact with the inner wall of the conveyor belt one, and the outside of the conveyor belt one is fixedly connected to a plurality of equally distributed partition plates, and the outside of the fixed frame is fixedly connected to a motor two, and the output end of the motor two is connected to one side of one of the transmission rollers one through a coupling; a connecting frame is fixedly connected to the bottom of the fixed frame, and a groove is provided at one end of the connecting frame away from the fixed frame, and a plurality of equally distributed rollers are movably connected in the groove, and the outsides of the rollers are in contact with the outside of the steep working side.

[0008] By providing an integrated crushing and transportation module, the integrated crushing and transportation module utilizes a rotatable fixed frame and a movable box to enable the device to complete the transportation and crushing steps of ore during the ore mining process. The rotating support plate and rollers enable the device to transport ore on steep slopes of different slopes, thereby improving the applicability of the device and reducing costs.

[0009] In a preferred solution, a three-way pipe is connected to the upper side of the water tank through a flange, and the two ends of the three-way pipe away from the water tank pass through the box body and enter the box body, a plurality of equally distributed nozzles are arranged on the three-way pipe, and a water filling port is opened on the upper side of the water tank, a pump is fixedly connected to the upper side of the water tank, and the output end of the pump is connected to the three-way pipe through a conduit, and the nozzles are all located below the guide plate; a rectangular opening is opened on one side of the box body close to the three-way pipe, and a mounting frame is arranged in the rectangular opening, and the bottom of the mounting frame is fixedly connected to the bottom inner wall of the box body, and two circular shafts are movably connected to the mounting frame, and the outside of the circular shafts are fixedly connected to transmission rollers 2, and the outsides of the two transmission rollers 2 are both in contact with the inner wall of conveyor belt 2, and the outside of the box body is fixedly connected to motor 3, and a fine hole is opened on the box body, and a short rod is movably connected in the fine hole, and one end of the short rod is fixedly connected to one side of the circular shaft away from the water tank, and the motor The output end of machine three is connected to the side of the short rod away from the transmission roller two through a coupling; two symmetrical baffles are fixedly connected to the upper side of the mounting frame, and the two baffles are both located outside the conveyor belt two, and the opposite sides of the two baffles are fixedly connected to the same base plate, and the base plate is located inside the conveyor belt two, and the opposite sides of the two baffles are fixedly connected to the same guide plate, and the guide plate is located above the conveyor belt two; four symmetrical springs are fixedly connected to the upper side of the base plate, and the end of the spring away from the base plate is fixedly connected to the same contact plate, which is located inside the conveyor belt two, the upper side of the contact plate is in contact with the inner wall of the conveyor belt two, and the bottom of the contact plate is fixedly connected to a curved plate, the upper side of the base plate is fixedly connected to a fixed platform, the outside of the fixed platform is fixedly connected to a motor four, and the output end of the motor four is connected to a cam through a coupling, and the outside of the cam is in contact with the outside of the curved plate.

[0010] By providing a dust reduction module, the dust reduction module utilizes the impact of the cam on the curved plate so that the ore piled on the second conveyor belt can be evenly spread on the second conveyor belt during vibration. By utilizing the pump and the nozzle, the water in the water tank can be alkaline to the ore evenly over a large area, thereby increasing the contact area between the ore and the water, thereby ensuring the water's adsorption rate of dust floating in the box and on the ore, improving the dust reduction effect, and protecting the environment and personnel health.

[0011] A method for mining steep slopes in an open pit mine, using the open pit mine steep slope mining device as described above, comprises the following steps: Step 1: After moving the box connected to the power chassis on the track to the position of mining ore on the steep working platform, the fixed frame connected to the box is set up on the slope of the steep working platform, and the crushing and transportation integrated module is used to transport the mined ore to the box for crushing; Step 2: The crushed ore falls into the box onto the second conveyor belt. The dust reduction module is used to vibrate the crushed ore on the second conveyor belt to disperse the ore evenly. Water is sprinkled on the surface of the ore to reduce dust. The ore after dust reduction is transported to the dump truck via the second conveyor belt for transportation.

[0012] From the above, it can be seen that the open-pit mine steep wall mining device provided by the present invention has the function of integrated transportation and crushing of ore mined from the steep wall of the open-pit mine, which directly shortens the process of vehicles transporting ore to the processing plant for crushing, greatly reduces the time consumed by the ore processing procedure, ensures the mining and processing efficiency of the device for ore, saves time, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an open-pit mine steep slope mining device proposed by the present invention; Figure 2 A schematic cross-sectional view of a steep slope mining device for an open-pit mine proposed by the present invention; Figure 3 This is a schematic diagram of the integrated module structure of crushing and transportation for an open-pit steep slope mining device proposed by the present invention; Figure 4 A schematic diagram of the crushing roller structure of an open-pit mine steep slope mining device proposed by the present invention; Figure 5 A schematic diagram of the structure of a conveyor belt 2 of an open-pit mine steep slope mining device proposed by the present invention; Figure 6 A schematic diagram of the structure of a dust reduction module of an open-pit mine steep slope mining device proposed by the present invention; Figure 7 This is a schematic diagram of the contact plate structure of an open-pit mine steep slope mining device proposed by the present invention.

[0014] In the figure: 1, steep working side; 2, track; 3, power chassis; 4, moving wheel; 5, box; 6, feed hopper; 7, crushing and transportation integrated module; 701, rotating shaft; 702, crushing roller; 703, gear 1; 704, gear 2; 705, motor 1; 706, rotating roller 1; 707, rotating roller 2; 708, belt; 709, guide plate; 710, support plate; 711, fixed frame; 712, conveyor belt 1; 713, partition plate; 714, transmission Roller one; 715, motor two; 716, connecting frame; 717, roller; 8, dust reduction module; 801, mounting frame; 802, drive roller two; 803, conveyor belt two; 804, motor three; 805, baffle; 806, guide plate; 807, water tank; 808, three-way pipe; 809, pump; 810, water inlet; 811, nozzle; 812, base plate; 813, spring; 814, contact plate; 815, curved plate; 816, motor four; 817, cam. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] The invention discloses an open-pit mine steep wall mining device which is mainly used in the scenario where the existing open-pit mine steep wall mining device cannot realize the integrated crushing and transportation of ore.

[0017] Reference Figure 1-7 A steep wall mining device for an open-pit mine comprises a steep wall working gang 1, a track 2 is arranged outside the steep wall working gang 1, a power chassis 3 is arranged above the track 2, and four symmetrical moving wheels 4 are arranged at the bottom of the power chassis 3, and the outer sides of the moving wheels 4 are all in contact with the track 2, a box body 5 is connected to the upper side of the power chassis 3 by bolts, a rectangular opening is opened on the upper side of the box body 5, a feed hopper 6 is connected to the rectangular opening by bolts, and a crushing and transporting integrated module 7 is arranged on the box body 5, and the crushing and transporting integrated module 7 is arranged on the box body 5. The integrated module 7 includes two crushing rollers 702, both of which are located in the box body 5, and the side of the box body 5 close to the steep working side 1 is rotatably connected to a support plate 710 through a bearing, and a conveyor belt 712 is arranged above the support plate 710, and the conveyor belt 712 is located above the feed hopper 6. A dust reduction module 8 is arranged on the box body 5, and the dust reduction module 8 is located below the crushing rollers 702, and the dust reduction module 8 includes a conveyor belt 2 803, and the outside of the box body 5 is connected to a water tank 807 by bolts.

[0018] Specifically, after the box body 5 connected to the power chassis 3 is moved on the track 2 to the position for mining ore on the steep working side 1, the fixed frame 711 connected to the box body 5 is erected on the inclined surface of the steep working side 1, and the mined ore is transported to the box body 5 for crushing using the integrated crushing and transportation module 7. The crushed ore falls onto the second conveyor belt 803 in the box body 5, and the crushed ore on the second conveyor belt 803 is vibrated using the dust reduction module 8 to evenly disperse the ore, and the surface of the ore is sprinkled with water to reduce dust. The ore after dust reduction is transported to the dump truck via the second conveyor belt 803 for transportation; the device can use the integrated crushing and transportation module 7 to transport and crush the ore mined from the steep side of the open-pit mine, which directly reduces the process of vehicles transporting the ore to the processing plant for crushing, greatly reduces the time consumed by the ore processing procedure, ensures the efficiency of the device in mining and processing the ore, saves time, and reduces costs.

[0019] Reference Figure 3 , Figure 4 and Figure 5In a preferred embodiment, two symmetrical circular holes are provided on the outside of the housing 5, and a rotating shaft 701 is rotatably connected to the two circular holes through bearings. The outsides of the two rotating shafts 701 are respectively connected to the inner walls of the two crushing rollers 702 through bolts. The blades on the two crushing rollers 702 are staggered, and the outside of one of the rotating shafts 701 is connected to a gear 1 703 through bolts, and the outside of the other rotating shaft 701 is connected to a rotating roller 2 707 through bolts. The gear 1 703 and the rotating roller 2 707 are both located on the outside of the housing 5; a round rod is rotatably connected to the side of the housing 5 close to the gear 1 703 through a bearing, and the outside of the round rod is connected to a gear 2 704 through bolts, and the gear 2 704 meshes with the gear 1 703. The outside of the round rod is connected to a rotating roller 1 706 through bolts, and the same belt 708 is set on the outside of the rotating roller 1 706 and the rotating roller 2 707, and the side of the housing 5 close to the rotating roller 1 706 is connected to a motor 1 70 through bolts. 5. The output end of the motor 1 705 is connected to the side of the round rod away from the box body 5 through a coupling, and the inner wall of the box body 5 is connected to two symmetrical guide plates 709 through bolts; the upper side of the support plate 710 is connected to a fixed frame 711 through bolts, and two symmetrical transmission rollers 1 714 are rotatably connected to the fixed frame 711 through bearings, and the exteriors of the two transmission rollers 1 714 are in contact with the inner wall of the conveyor belt 1 712, and the exterior of the conveyor belt 1 712 is connected to a plurality of equally spaced partition plates 713 through bolts, and the exterior of the fixed frame 711 is connected to the motor 2 715 through bolts, and the output end of the motor 2 715 is connected to one side of one of the transmission rollers 1 714 through a coupling; the bottom of the fixed frame 711 is connected to a connecting frame 716 through bolts, and the end of the connecting frame 716 away from the fixed frame 711 is provided with a groove, and a plurality of equally spaced rollers 717 are rotatably connected in the groove through bearings, and the exteriors of the rollers 717 are in contact with the exterior of the steep working side 1.

[0020] Specifically, the excavator lifts the ore on the steep slope to the conveyor belt 1 712, starts the motor 2 715, and the motor 2 715 drives the transmission roller 1 714 to rotate, so that the ore distributed on the partition plate 713 can be transported to the feed hopper 6 as the conveyor belt 1 712 rotates, and the ore in the feed hopper 6 falls between the two crushing rollers 702, and the motor 1 705 is started, and the motor 1 705 drives the gear 1 703 meshing with the gear 2 704 to rotate, and drives the belt 708 on the rotating roller 1 706 and the rotating roller 2 707 to rotate, so that the two The crushing rollers 702 rotate towards each other so that the crushing rollers 702 can crush the ore, and the crushed ore falls under the guidance of the guide plate 709. After the ore on the steep wall where the box 5 is located is mined, the power chassis 3 drives the moving wheel 4 to move on the track 2, so that the box 5 can be moved to a new mining position on the steep wall working side 1. Driven by the moving box 5, the roller 717 on the connecting frame 716 connected to the fixed frame 711 contacts and rolls with the inclined surface of the steep wall working side 1, so that the conveyor belt 712 can move with the box 5.

[0021] In specific application scenarios, the integrated crushing and transportation module 7 is mainly suitable for the integrated crushing and transportation link in the integrated crushing and transportation process, that is, the integrated crushing and transportation module 7 uses a rotatable fixed frame 711 and a movable box 5 to enable the device to complete the transportation and crushing steps of ore during the ore mining process, and uses a rotating support plate 710 and a roller 717 to enable the device to transport ore on steep slopes of different slopes, thereby improving the applicability of the device and reducing costs.

[0022] Reference Figure 6 and Figure 7In a preferred embodiment, the upper side of the water tank 807 is connected to a three-way pipe 808 through a flange, and the two ends of the three-way pipe 808 away from the water tank 807 pass through the box body 5 and enter the box body 5. A plurality of equally distributed nozzles 811 are provided on the three-way pipe 808, and a water injection port 810 is provided on the upper side of the water tank 807. A pump 809 is connected to the upper side of the water tank 807 by bolts, and the output end of the pump 809 is connected to the three-way pipe 808 through a conduit, and the nozzles 811 are all located below the guide plate 709; a rectangular opening 810 is provided on one side of the box body 5 close to the three-way pipe 808 A mounting frame 801 is arranged in the rectangular opening, the bottom of the mounting frame 801 is connected to the bottom inner wall of the box body 5 by bolts, and two round shafts are rotatably connected to the mounting frame 801 by bearings, and the outsides of the round shafts are connected to the transmission rollers 802 by bolts, and the outsides of the two transmission rollers 802 are both in contact with the inner wall of the conveyor belt 803, and the outside of the box body 5 is connected to the motor 3 804 by bolts, and a fine hole is opened on the box body 5, and a short rod is rotatably connected to the fine hole by a bearing, and one end of the short rod is connected to the side of the round shaft away from the water tank 807 by bolts, and the transmission of the motor 3 804 The outlet end is connected to the side of the short rod away from the transmission roller 2 802 through a coupling; the upper side of the mounting frame 801 is connected to two symmetrical baffles 805 through bolts, and the two baffles 805 are both located outside the conveyor belt 2 803. The opposite sides of the two baffles 805 are connected to the same base plate 812 through bolts, and the base plate 812 is located inside the conveyor belt 2 803. The opposite sides of the two baffles 805 are connected to the same guide plate 806 through bolts, and the guide plate 806 is located above the conveyor belt 2 803; the upper side of the base plate 812 is connected to four symmetrical The spring 813, one end of the spring 813 away from the base plate 812 is connected to the same contact plate 814 by bolts, the contact plate 814 is located in the conveyor belt 803, the upper side of the contact plate 814 is in contact with the inner wall of the conveyor belt 803, and the bottom of the contact plate 814 is connected to the curved plate 815 by bolts, the upper side of the base plate 812 is connected to the fixed platform by bolts, the outside of the fixed platform is connected to the motor 4 816 by bolts, the output end of the motor 816 is connected to the cam 817 through a coupling, and the outside of the cam 817 is in contact with the outside of the curved plate 815.

[0023] Specifically, after the crushed ore falls onto the conveyor belt 803, the motor 816 is started, and the motor 816 drives the cam 817 to rotate, so that the cam 817 can continuously hit the curved plate 815 at the bottom of the contact plate 814, so that the contact plate 814 continuously moves up and down under the pulling force of the spring 813, so that the contact plate 814 drives the conveyor belt 803 to vibrate the ore on the conveyor belt 803, so that the ore is spread on the conveyor belt 803, and the motor 804 is started, and the motor 804 drives the transmission roller 802 to rotate, so that the conveyor belt 803 transports the ore to the outside of the box 5, and the pump 809 is started, and the pump 809 transports the water in the water tank 807 to the nozzle 811 through the three-way pipe 808 for spraying, so that the water is spread on the ore spread on the conveyor belt 803 to absorb the dust.

[0024] In specific application scenarios, the dust reduction module 8 is mainly suitable for the dust reduction link in the dust reduction process, that is, the dust reduction module 8 uses the cam 817 to impact the curved plate 815, so that the ore piled on the conveyor belt 803 can be evenly spread on the conveyor belt 803 during vibration, and the pump 809 and the nozzle 811 are used to make the water in the water tank 807 alkaline and evenly attach to the ore over a large area, thereby increasing the contact area between the ore and the water, thereby ensuring the water's adsorption rate of dust floating in the box 5 and on the ore, improving the dust reduction effect, and protecting the environment and personnel health.

[0025] A method for mining steep slopes in an open pit mine, using the open pit mine steep slope mining device as described above, comprises the following steps: Step 1: After moving the box body 5 connected to the power chassis 3 on the track 2 to the position of mining ore on the steep working gang 1, the fixed frame 711 connected to the box body 5 is set on the slope of the steep working gang 1, and the mined ore is transported to the box body 5 for crushing using the crushing and transportation integrated module 7 (after moving the box body 5 connected to the power chassis 3 on the track 2 to the position of mining ore on the steep working gang 1, the fixed frame 711 connected to the box body 5 is set on the slope of the steep working gang 1, and the excavator lifts the ore on the steep gang to the conveyor belt 1 712, and starts the motor 2 715, which drives the transmission roller 1 714 to rotate, so that the ore distributed on the partition plate 713 can be transported to the feed hopper 6 as the conveyor belt 1 712 rotates, and the ore in the feed hopper 6 falls The conveyor 702 moves to between the two crushing rollers 702, and the motor 1 705 is started. The motor 1 705 drives the gear 1 703 meshing with the gear 2 704 to rotate, and drives the belt 708 on the rotating roller 1 706 and the rotating roller 2 707 to rotate, so that the two crushing rollers 702 rotate towards each other, so that the crushing rollers 702 can crush the ore, and the crushed ore falls under the guidance of the guide plate 709. After the ore mining on the steep wall where the box body 5 is located is completed, the power chassis 3 drives the moving wheel 4 to move on the track 2, so that the box body 5 can move to a new mining position on the steep wall working side 1. Driven by the moving box body 5, the roller 717 on the connecting frame 716 connected to the fixed frame 711 contacts and rolls with the inclined surface of the steep wall working side 1, so that the conveyor belt 1 712 can move with the box body 5); Step 2: The crushed ore falls onto the second conveyor belt 803 in the box 5. The dust reduction module 8 is used to vibrate the crushed ore on the second conveyor belt 803 so that the ore is evenly dispersed. Water is sprinkled on the surface of the ore to reduce dust. The ore after dust reduction is transported to the dump truck via the second conveyor belt 803 for transportation (after the crushed ore falls onto the second conveyor belt 803, the motor 4 816 is started, and the motor 4 816 drives the cam 817 to rotate, so that the cam 817 can continuously hit the curved plate 815 at the bottom of the contact plate 814, so that the contact plate 814 is moved by the spring 813. It continuously moves up and down under the pulling force, so that the contact plate 814 drives the conveyor belt 2 803 to vibrate the ore on the conveyor belt 2 803, so that the ore is spread on the conveyor belt 2 803, and the motor 3 804 is started. The motor 3 804 drives the transmission roller 2 802 to rotate, so that the conveyor belt 2 803 transports the ore to the outside of the box body 5, and the pump 809 is started. The pump 809 transports the water in the water tank 807 through the three-way pipe 808 to the nozzle 811 for spraying, thereby spreading the water on the ore spread on the conveyor belt 2 803 to absorb the dust).

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An open-pit steep wall mining device, comprising a steep wall working wall (1), characterized in that: The steep working side (1) is provided with a track (2) on the outside, a power chassis (3) is provided above the track (2), and four symmetrical moving wheels (4) are provided at the bottom of the power chassis (3), the outsides of the moving wheels (4) are in contact with the track (2), a box (5) is fixedly connected to the upper side of the power chassis (3), a rectangular opening is provided on the upper side of the box (5), a feed hopper (6) is fixedly connected to the rectangular opening, and a crushing and transporting integrated module (7) is provided on the box (5), and the crushing and transporting integrated module (7) includes two crushing Roller (702), two crushing rollers (702) are both located in the box body (5), and a support plate (710) is movably connected to a side of the box body (5) close to the steep working side (1), a conveyor belt 1 (712) is arranged above the support plate (710), and the conveyor belt 1 (712) is located above the feed hopper (6), a dust reduction module (8) is arranged on the box body (5), the dust reduction module (8) is located below the crushing roller (702), and the dust reduction module (8) includes a conveyor belt 2 (803), and a water tank (807) is fixedly connected to the outside of the box body (5).

2. The open-pit mine steep wall mining device according to claim 1, characterized in that: The box body (5) is provided with two symmetrical circular holes on the outside, and rotating shafts (701) are movably connected in the two circular holes. The outsides of the two rotating shafts (701) are respectively fixedly connected to the inner walls of the two crushing rollers (702). The blades on the two crushing rollers (702) are arranged in a staggered manner, and the outside of one of the rotating shafts (701) is fixedly connected to a gear 1 (703), and the outside of the other rotating shaft (701) is fixedly connected to a rotating roller 2 (707). The gear 1 (703) and the rotating roller 2 (707) are both located on the outside of the box body (5).

3. The open-pit mine steep slope mining device according to claim 2, characterized in that: A round rod is movably connected to a side of the box body (5) close to gear 1 (703), and a gear 2 (704) is fixedly connected to the outside of the round rod. Gear 2 (704) meshes with gear 1 (703). A rotating roller 1 (706) is fixedly connected to the outside of the round rod, and the same belt (708) is arranged on the outside of rotating roller 1 (706) and rotating roller 2 (707). A motor 1 (705) is fixedly connected to a side of the box body (5) close to rotating roller 1 (706), and the output end of the motor 1 (705) is connected to a side of the round rod away from the box body (5) through a coupling. Two symmetrical guide plates (709) are fixedly connected to the inner wall of the box body (5).

4. The open-pit mine steep slope mining device according to claim 3, characterized in that: The upper side of the support plate (710) is fixedly connected to a fixing frame (711), and two symmetrical transmission rollers (714) are movably connected to the fixing frame (711), the exteriors of the two transmission rollers (714) are in contact with the inner wall of the conveyor belt (712), the exterior of the conveyor belt (712) is fixedly connected to a plurality of equally spaced partition plates (713), and the exterior of the fixing frame (711) is fixedly connected to a motor (715), and the output end of the motor (715) is connected to one side of one of the transmission rollers (714) via a coupling.

5. The open-pit mine steep slope mining device according to claim 4, characterized in that: A connecting frame (716) is fixedly connected to the bottom of the fixing frame (711), and a groove is formed at one end of the connecting frame (716) away from the fixing frame (711), and a plurality of rollers (717) distributed at equal intervals are movably connected in the groove, and the outsides of the rollers (717) are in contact with the outside of the steep working frame (1).

6. The open-pit mine steep wall mining device according to claim 5, characterized in that: The upper side of the water tank (807) is connected to a three-way pipe (808) via a flange. The two ends of the three-way pipe (808) away from the water tank (807) pass through the box body (5) and enter the box body (5). The three-way pipe (808) is provided with a plurality of equally spaced nozzles (811). The upper side of the water tank (807) is provided with a water injection port (810). The upper side of the water tank (807) is fixedly connected to a pump (809). The output end of the pump (809) is connected to the three-way pipe (808) via a conduit. The nozzles (811) are all located below the guide plate (709).

7. The open-pit mine steep wall mining device according to claim 6, characterized in that: The box body (5) is provided with a rectangular opening on one side close to the three-way pipe (808), and a mounting frame (801) is arranged in the rectangular opening. The bottom of the mounting frame (801) is fixedly connected to the bottom inner wall of the box body (5), and two round shafts are movably connected to the mounting frame (801). The outsides of the round shafts are fixedly connected to the second transmission roller (802), and the outsides of the two second transmission rollers (802) are both in contact with the inner wall of the second conveyor belt (803). The outside of the box body (5) is fixedly connected to the third motor (804). The box body (5) is provided with a fine hole, and a short rod is movably connected in the fine hole. One end of the short rod is fixedly connected to the side of the round shaft away from the water tank (807), and the output end of the third motor (804) is connected to the side of the short rod away from the second transmission roller (802) through a coupling.

8. The open-pit mine steep wall mining device according to claim 7, characterized in that: Two symmetrical baffles (805) are fixedly connected to the upper side of the mounting frame (801), and the two baffles (805) are both located outside the second conveyor belt (803). The two baffles (805) are fixedly connected to the same base plate (812) on the opposite sides, and the base plate (812) is located inside the second conveyor belt (803). The two baffles (805) are fixedly connected to the same guide plate (806) on the opposite sides, and the guide plate (806) is located above the second conveyor belt (803).

9. The open-pit mine steep wall mining device according to claim 8, characterized in that: Four symmetrical springs (813) are fixedly connected to the upper side of the base plate (812); one end of the spring (813) away from the base plate (812) is fixedly connected to the same contact plate (814); the contact plate (814) is located inside the second conveyor belt (803); the upper side of the contact plate (814) is in contact with the inner wall of the second conveyor belt (803); and the bottom of the contact plate (814) is fixedly connected to a curved plate (815); the upper side of the base plate (812) is fixedly connected to a fixed platform; the outside of the fixed platform is fixedly connected to a fourth motor (816); the output end of the fourth motor (816) is connected to a cam (817) via a coupling; the outside of the cam (817) is in contact with the outside of the curved plate (815).

10. A method for mining a steep wall in an open pit mine, using the device for mining a steep wall in an open pit mine as claimed in claim 9, characterized in that: The steps include: Step 1: After moving the box (5) connected to the power chassis (3) on the track (2) to the position on the steep working side (1) where the ore is mined, the fixed frame (711) connected to the box (5) is erected on the inclined surface of the steep working side (1), and the mined ore is transported to the box (5) for crushing using the integrated crushing and transportation module (7); Step 2: The crushed ore falls from the box (5) onto the second conveyor belt (803). The crushed ore on the second conveyor belt (803) is vibrated by the dust reduction module (8) to evenly disperse the ore. Water is then sprinkled on the surface of the ore to reduce dust. The ore after dust reduction is transported to a dump truck via the second conveyor belt (803) for transportation.

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