Equipment special for rock powder backfilling in surface mine blasting construction

Abstract

The invention relates to the technical field of mine blasting construction, and discloses equipment special for rock powder backfilling in surface mine blasting construction, which comprises a mounting cover assembly, a centralized blanking assembly is arranged at the upper end of the inner wall of the mounting cover assembly, an automatic quantitative blanking mechanism is arranged on the right side of the front surface of the mounting cover assembly, and the mounting cover assembly comprises a mounting cover body. A mounting top plate is fixedly mounted at the top of the inner wall of the mounting cover body, a mounting opening is formed in the left side of the top of the mounting top plate, the mounting cover assembly, the centralized discharging assembly and the automatic quantitative discharging mechanism are arranged, rock powder can be accurately backfilled into a blast hole through the mounting cover assembly and the centralized discharging assembly, manual assistance of rock powder entering the hole is not needed, and the working efficiency is improved. According to the rock powder backfilling device, the rock powder backfilling efficiency and effect are improved, the rock powder backfilling amount can be accurately controlled through the automatic quantitative discharging mechanism, the situation that excessive rock powder needs to be recycled after the rock powder enters the hole and is filled with the rock powder is avoided, and the rock powder backfilling efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of mine blasting construction, in particular to special equipment for rock powder backfilling in open-pit mine blasting construction. Background Art

[0002] Deep hole blasting has great advantages in improving crushing quality, maintaining slope stability, improving loading efficiency and economic benefits, and is widely used in rock excavation in engineering fields such as mining, railways, highways, and municipal engineering. During the blasting construction process, the orifice section needs to be filled to complete the blast hole charging, so as to increase the pressure of the detonation gas and prolong the action time, increase the degree of rock expansion and throwing distance, thereby improving the energy utilization rate of explosives and improving the blasting effect. At present, the filling of blast holes in large open-pit mines mainly adopts the operation method of manual operation with the help of shovels or spades, which has low work efficiency and high labor intensity, and is difficult to adapt to large-scale blasting operations. Especially under harsh conditions such as high altitude and severe cold climate, the life, health and labor capacity of operators are greatly affected. It is urgent to improve the degree of mechanization and automation, improve work efficiency, and protect the occupational health of workers. After innovative research by scientific and technological personnel, professional filling equipment has been applied in some large mines. The working principle of this filling device is to gather and tighten the rock powder at the hole mouth, clamp it into strips, then push it to center the blasthole, and finally let the rock powder fall into the blasthole under the action of its own weight.

[0003] Since the collected rock powder is about 1.2m long, but the diameter of the blasthole does not exceed 30cm, most of the rock powder cannot be backfilled smoothly, and the efficiency is low. Sometimes, manual labor is needed to fill the hole with rock powder, which consumes a lot of physical strength, has a slow filling speed, and poor filling quality stability, affecting the blasting effect. In addition, the amount of rock powder backfill cannot be accurately controlled. After the hole is filled with rock powder, excess rock powder needs to be recovered, further reducing the efficiency of rock powder backfill.

[0004] Therefore, we propose a special equipment for rock powder backfilling in open-pit mine blasting construction. Summary of the invention

[0005] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a special equipment for rock powder backfilling in open-pit mine blasting construction.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a special equipment for rock powder backfilling in open-pit mine blasting construction, including a mounting cover assembly, a centralized unloading assembly is arranged at the upper end of the inner wall of the mounting cover assembly, an automatic quantitative unloading mechanism is arranged on the right side of the front of the mounting cover assembly, the mounting cover assembly includes a mounting cover body, a mounting top plate is fixedly installed on the top of the inner wall of the mounting cover body, a mounting opening is opened on the left side of the top of the mounting top plate, the centralized unloading assembly includes a unloading box, and the upper end of the outer wall of the unloading box is fixedly connected to the inner wall of the mounting top plate at the mounting opening, a unloading opening is opened on the right side of the bottom of the unloading box, a feeding hopper is fixedly installed on the top of the unloading box, the automatic quantitative unloading mechanism includes a first connecting column, and the back side of the first connecting column is movably connected to the front side of the mounting cover body, a first mounting plate is fixedly installed on the front end of the outer wall of the first connecting column, and a reinforcement plate is fixedly installed on the lower end of the right side wall of the first mounting plate.

[0007] Preferably, a mounting base plate is fixedly mounted on the top of the reinforcement plate, and a left side wall surface of the mounting base plate is fixedly connected to a right side wall surface of the first mounting plate.

[0008] Preferably, a second mounting plate is fixedly mounted on the top left side of the mounting base plate, and a third mounting plate is fixedly mounted on the top right side of the mounting base plate.

[0009] Preferably, a servo motor is fixedly mounted on the left wall of the first mounting plate, and the output end of the servo motor movably passes through the right wall of the first mounting plate and the right wall of the second mounting plate respectively.

[0010] Preferably, a screw is fixedly mounted on the output end of the servo motor, and the right side wall of the screw is movably connected to the left side wall of the third mounting plate.

[0011] Preferably, the outer wall of the screw rod is threadedly connected with an internal threaded tube, a second connecting column is fixedly mounted on the back side of the internal threaded tube, and a rotating plate is movably mounted on the back side of the second connecting column.

[0012] Preferably, a rotating column is fixedly mounted on the upper end of the inner wall of the rotating plate, and the back side of the rotating column movably penetrates the front end of the inner wall of the mounting cover body and is movably connected to the rear end of the inner wall of the mounting cover body.

[0013] Preferably, a connecting sleeve is fixedly installed on the middle end of the outer wall of the rotating column.

[0014] Preferably, a blocking plate is fixedly mounted on the lower end of the left wall of the connecting sleeve, and the upper end of the left wall of the blocking plate is in movable contact with the lower end of the right wall of the discharge box at the discharge port.

[0015] The present invention provides a special equipment for rock powder backfilling in open-pit mine blasting construction. It has the following beneficial effects:

[0016] 1. This kind of special equipment for rock powder backfilling in open-pit mine blasting construction is equipped with an installation cover component, a centralized feeding component and an automatic quantitative feeding mechanism. The installation cover component and the centralized feeding component can accurately backfill the rock powder into the blasthole, without the need for manual assistance of rock powder entering the hole, thereby improving the efficiency and effect of rock powder backfilling. The automatic quantitative feeding mechanism can accurately control the amount of rock powder backfilling, avoiding the situation where excessive rock powder needs to be recovered after the rock powder hole is filled, thereby further improving the efficiency of rock powder backfilling.

[0017] 2. This is a special equipment for rock powder backfilling in open-pit mine blasting construction. By setting a servo motor, a screw and an internal threaded pipe, the servo motor can accurately control the number of rotations of the screw, thereby accurately controlling the distance that the screw drives the internal threaded pipe to move, and finally accurately controlling the rotation angle of the sealing plate, thereby accurately controlling the speed of rock powder backfilling.

[0018] 3. This special equipment for rock powder backfilling in open-pit mine blasting construction is equipped with a screw rod and an internal threaded tube. The screw rod and the internal threaded tube have a self-locking function, so that the sealing plate will not rotate when receiving the weight of the rock powder, thereby improving the operating stability of the entire device.

[0019] 4. This special equipment for rock powder backfilling in open-pit mine blasting construction is equipped with a reinforcement plate, which can reinforce the connection between the mounting base plate and the first mounting plate, thereby making the structure of the entire automatic quantitative feeding mechanism more stable.

[0020] 5. This kind of special equipment for rock powder backfilling in open-pit mine blasting construction is equipped with a feed hopper, which can facilitate the delivery and temporary storage of rock powder, avoid the problem of rock powder recovery caused by splashing to the surrounding area when the rock powder is delivered, and can store a certain amount of rock powder in advance, so as to facilitate the rapid backfilling of rock powder when the automatic quantitative feeding mechanism is in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the front side of the present invention;

[0022] Figure 2 It is a schematic diagram of the front structure of the mounting cover assembly of the present invention;

[0023] Figure 3 It is a schematic diagram of the top structure of the centralized material unloading assembly of the present invention;

[0024] Figure 4 It is a front structural schematic diagram of the automatic quantitative feeding mechanism of the present invention.

[0025] Legend: 10. Install the cover assembly; 11. Centralized unloading assembly; 12. Automatic quantitative unloading mechanism; 13. Install the cover body; 14. Install the top plate; 15. Install the port; 16. Unloading box; 17. Unloading port; 18. Feed hopper; 19. First connecting column; 20. First mounting plate; 21. Reinforcement plate; 22. Install the bottom plate; 23. Second mounting plate; 24. Third mounting plate; 25. Servo motor; 26. Screw; 27. Internally threaded pipe; 28. Second connecting column; 29. ​​Rotating plate; 30. Rotating column; 31. Connecting sleeve; 32. Sealing plate. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0027] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "inner", "outer", "side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0032] Embodiment 1: A special equipment for rock dust backfilling in open-pit mine blasting construction, such as Figure 1-Figure 4As shown, it includes a mounting cover assembly 10, a centralized unloading assembly 11 is arranged at the upper end of the inner wall of the mounting cover assembly 10, an automatic quantitative unloading mechanism 12 is arranged on the right side of the front of the mounting cover assembly 10, the mounting cover assembly 10 includes a mounting cover body 13, a mounting top plate 14 is fixedly installed on the top of the inner wall of the mounting cover body 13, a mounting opening 15 is opened on the left side of the top of the mounting top plate 14, the centralized unloading assembly 11 includes an unloading box 16, and the upper end of the outer wall of the unloading box 16 is fixedly connected to the inner wall of the mounting top plate 14 at the mounting opening 15, a unloading opening 17 is opened on the right side of the bottom of the unloading box 16, a feed hopper 18 is fixedly installed on the top of the unloading box 16, and the automatic quantitative unloading mechanism 1 2 includes a first connecting column 19, and the back of the first connecting column 19 is movably connected to the front of the mounting cover body 13, a first mounting plate 20 is fixedly installed on the front end of the outer wall of the first connecting column 19, a reinforcing plate 21 is fixedly installed on the lower end of the right wall of the first mounting plate 20, a mounting bottom plate 22 is fixedly installed on the top of the reinforcing plate 21, and the left wall of the mounting bottom plate 22 is fixedly connected to the right wall of the first mounting plate 20, a second mounting plate 23 is fixedly installed on the left side of the top of the mounting bottom plate 22, a third mounting plate 24 is fixedly installed on the right side of the top of the mounting bottom plate 22, a servo motor 25 is fixedly installed on the left wall of the first mounting plate 20, and the output end of the servo motor 25 is divided into The servo motor 25 is provided with a screw rod 26 fixedly mounted on the output end thereof, and the right side wall of the screw rod 26 is movably connected to the left side wall of the third mounting plate 24. The outer wall of the screw rod 26 is threadedly connected to an internal threaded tube 27, and a second connecting column 28 is fixedly mounted on the back side of the internal threaded tube 27. A rotating plate 29 is movably mounted on the back side of the second connecting column 28. A rotating column 30 is fixedly mounted on the upper end of the inner wall of the rotating plate 29, and the back side of the rotating column 30 is movably mounted to the front end of the inner wall of the mounting cover body 13 and is movably connected to the rear end of the inner wall of the mounting cover body 13. A connecting sleeve 31 is fixedly mounted on the middle end of the outer wall of the rotating column 30. A sealing plate 32 is fixedly installed on the lower end of the left side wall of the connecting sleeve 31, and the upper end of the left side wall of the sealing plate 32 is in active contact with the lower end of the right side wall of the discharge box 16 at the discharge port 17. By arranging the installation cover assembly 10, the centralized discharge assembly 11 and the automatic quantitative discharge mechanism 12, the rock powder can be accurately backfilled into the blasthole through the installation cover assembly 10 and the centralized discharge assembly 11, without the need for manual assistance of rock powder entering the hole, thereby improving the efficiency and effect of rock powder backfilling. The automatic quantitative discharge mechanism 12 can accurately control the amount of rock powder backfilling, avoiding the situation where excessive rock powder needs to be recovered after the rock powder hole is filled, thereby further improving the efficiency of rock powder backfilling.

[0033] Embodiment 2: Based on Embodiment 1, Figure 2-Figure 3As shown, the mounting cover assembly 10 includes a mounting cover body 13, a mounting top plate 14 is fixedly mounted on the top of the inner wall of the mounting cover body 13, a mounting opening 15 is opened on the left side of the top of the mounting top plate 14, and the centralized unloading assembly 11 includes a unloading box 16, and the upper end of the outer wall of the unloading box 16 is fixedly connected to the inner wall of the mounting top plate 14 at the mounting opening 15, a unloading opening 17 is opened on the right side of the bottom of the unloading box 16, and a feeding hopper 18 is fixedly mounted on the top of the unloading box 16, and a servo motor 25, a screw rod 26 and an internal threaded tube 27 are provided, and the number of revolutions of the screw rod 26 can be accurately controlled by the servo motor 25, thereby accurately controlling the distance that the screw rod 26 drives the internal threaded tube 27 to move, and finally the rotation angle of the sealing plate 32 can be accurately controlled, thereby accurately controlling the speed of rock powder backfilling.

[0034] Embodiment 3: Based on Embodiment 1 and Embodiment 2, Figure 2 As shown, the mounting cover assembly 10 includes a mounting cover body 13, a mounting top plate 14 is fixedly mounted on the top of the inner wall of the mounting cover body 13, a mounting opening 15 is opened on the left side of the top of the mounting top plate 14, and a screw rod 26 and an internal threaded tube 27 are arranged, and the screw rod 26 and the internal threaded tube 27 have a self-locking function, so that the sealing plate 32 will not rotate when receiving the weight of the rock powder, thereby improving the operating stability of the entire device.

[0035] Embodiment 4: Based on Embodiment 1, Embodiment 2 and Embodiment 3, Figure 3 As shown, the centralized unloading assembly 11 includes a unloading box 16, and the upper end of the outer wall of the unloading box 16 is fixedly connected to the inner wall of the mounting top plate 14 at the mounting opening 15, a unloading opening 17 is provided on the right side of the bottom of the unloading box 16, and a feed hopper 18 is fixedly installed on the top of the unloading box 16. A reinforcement plate 21 is provided, which can reinforce the connection between the mounting bottom plate 22 and the first mounting plate 20, thereby making the structure of the entire automatic quantitative unloading mechanism 12 more stable.

[0036] Embodiment 5: Based on Embodiment 1, Embodiment 2, Embodiment 3 and Embodiment 4, Figure 4As shown, the automatic quantitative unloading mechanism 12 includes a first connecting column 19, and the back side of the first connecting column 19 is movably connected to the front side of the mounting cover body 13, a first mounting plate 20 is fixedly installed on the front end of the outer wall of the first connecting column 19, a reinforcing plate 21 is fixedly installed on the lower end of the right side wall of the first mounting plate 20, a mounting base plate 22 is fixedly installed on the top of the reinforcing plate 21, and the left side wall of the mounting base plate 22 is fixedly connected to the right side wall of the first mounting plate 20, a second mounting plate 23 is fixedly installed on the top left side of the mounting base plate 22, a third mounting plate 24 is fixedly installed on the top right side of the mounting base plate 22, a servo motor 25 is fixedly installed on the left side wall of the first mounting plate 20, and the output end of the servo motor 25 movably passes through the right side walls of the first mounting plate 20 and the second mounting plate 23 respectively, a screw rod 26 is fixedly installed on the output end of the servo motor 25, and the right side wall of the screw rod 26 is movably connected to the left side wall of the third mounting plate 24 The outer wall of the screw rod 26 is threadedly connected with an internal threaded tube 27, and a second connecting column 28 is fixedly installed on the back of the internal threaded tube 27, and a rotating plate 29 is movably installed on the back of the second connecting column 28, and a rotating column 30 is fixedly installed on the upper end of the inner wall of the rotating plate 29, and the back of the rotating column 30 movably penetrates the front end of the inner wall of the mounting cover body 13 and is movably connected with the rear end of the inner wall of the mounting cover body 13, and a connecting sleeve 31 is fixedly installed on the middle end of the outer wall of the rotating column 30, and a sealing plate 32 is fixedly installed on the lower end of the left wall of the connecting sleeve 31, and the upper end of the left wall of the sealing plate 32 is movably contacted with the lower end of the right wall of the unloading box 16 at the unloading port 17. By setting up the feeding hopper 18, the feeding hopper 18 can facilitate the delivery and temporary storage of rock powder, avoid the problem of rock powder recovery caused by splashing to the surrounding area when the rock powder is delivered, and at the same time, a certain amount of rock powder can be stored in advance, which is convenient for the rapid backfilling of rock powder when the automatic quantitative unloading mechanism 12 is in operation.

[0037] The working principle of the present invention is as follows: by placing the device at the blast hole, and feeding rock powder into the feed hopper 18 on the centralized material discharge assembly 11, after the feed hopper 18 and the material discharge box 16 are filled, by turning on the forward rotation switch of the servo motor 25, the output end of the servo motor 25 drives the screw rod 26 to start rotating, the screw rod 26 drives the internal threaded tube 27 to move rightward, the internal threaded tube 27 drives the rotating plate 29 to start rotating counterclockwise through the second connecting column 28, the rotating plate 29 drives the connecting sleeve 31 to start rotating counterclockwise through the rotating column 30, and the connecting sleeve 31 drives the blocking plate 3 2 starts to rotate counterclockwise, so that the blocking plate 32 is separated from the discharge port 17 on the discharge box 16, and the rock powder in the discharge box 16 and the feed hopper 18 is discharged into the blast hole under the influence of its own gravity. The rotation angle of the blocking plate 32 can be controlled by controlling the number of rotations of the servo motor 25 to control the discharge speed. When the blast hole is backfilled, the reverse switch of the servo motor 25 is turned on to rotate the blocking plate 32 clockwise to contact the discharge port 17 on the discharge box 16, so that the discharge port 17 on the discharge box 16 is closed, thereby stopping the discharge.

[0038] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A special equipment for rock dust backfilling in open-pit mine blasting construction, comprising a mounting cover assembly (10), characterized in that: The upper end of the inner wall of the mounting cover assembly (10) is provided with a centralized material discharge assembly (11), the right side of the front of the mounting cover assembly (10) is provided with an automatic quantitative material discharge mechanism (12), the mounting cover assembly (10) comprises a mounting cover body (13), a mounting top plate (14) is fixedly mounted on the top of the inner wall of the mounting cover body (13), a mounting opening (15) is provided on the left side of the top of the mounting top plate (14), the centralized material discharge assembly (11) comprises a material discharge box (16), and the upper end of the outer wall of the material discharge box (16) is connected to the mounting top plate (14) The inner wall of the discharging box (16) is fixedly connected at the mounting opening (15), a discharging opening (17) is provided on the right side of the bottom of the discharging box (16), a feeding hopper (18) is fixedly installed on the top of the discharging box (16), the automatic quantitative discharging mechanism (12) comprises a first connecting column (19), and the back side of the first connecting column (19) is movably connected to the front side of the mounting cover body (13), a first mounting plate (20) is fixedly installed on the front end of the outer wall of the first connecting column (19), and a reinforcing plate (21) is fixedly installed on the lower end of the right side wall of the first mounting plate (20).

2. The special equipment for rock dust backfilling in open-pit mine blasting construction according to claim 1 is characterized by: A mounting base plate (22) is fixedly mounted on the top of the reinforcing plate (21), and a left side wall surface of the mounting base plate (22) is fixedly connected to a right side wall surface of the first mounting plate (20).

3. The special equipment for rock dust backfilling in open-pit mine blasting construction according to claim 2 is characterized by: A second mounting plate (23) is fixedly mounted on the left side of the top of the mounting base plate (22), and a third mounting plate (24) is fixedly mounted on the right side of the top of the mounting base plate (22).

4. The special equipment for rock dust backfilling in open-pit mine blasting construction according to claim 1 is characterized by: A servo motor (25) is fixedly mounted on the left side wall of the first mounting plate (20), and the output end of the servo motor (25) movably penetrates the right side walls of the first mounting plate (20) and the second mounting plate (23).

5. The special equipment for rock dust backfilling in open-pit mine blasting construction according to claim 4 is characterized by: A screw rod (26) is fixedly mounted on the output end of the servo motor (25), and the right side wall surface of the screw rod (26) is movably connected to the left side wall surface of the third mounting plate (24).

6. The special equipment for rock dust backfilling in open-pit mine blasting construction according to claim 5 is characterized by: The outer wall of the screw rod (26) is threadedly connected to an internal threaded tube (27), a second connecting column (28) is fixedly mounted on the back of the internal threaded tube (27), and a rotating plate (29) is movably mounted on the back of the second connecting column (28).

7. The special equipment for rock dust backfilling in open-pit mine blasting construction according to claim 6 is characterized by: A rotating column (30) is fixedly mounted on the upper end of the inner wall of the rotating plate (29), and the back side of the rotating column (30) movably penetrates the front end of the inner wall of the mounting cover body (13) and is movably connected to the rear end of the inner wall of the mounting cover body (13).

8. The special equipment for rock dust backfilling in open-pit mine blasting construction according to claim 7 is characterized by: A connecting sleeve (31) is fixedly mounted on the middle end of the outer wall of the rotating column (30).

9. The special equipment for rock dust backfilling in open-pit mine blasting construction according to claim 8, characterized in that: A blocking plate (32) is fixedly mounted on the lower end of the left wall of the connecting sleeve (31), and the upper end of the left wall of the blocking plate (32) is in active contact with the lower end of the right wall of the discharge box (16) at the discharge port (17).

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