Blast hole filling device for medium-length hole blasting in strip mine

Abstract

The utility model relates to the technical field of blasting equipment, and discloses a blast hole filling device for medium-length hole blasting in a strip mine, which comprises an upper shell and a lower shell, the upper shell and the lower shell are symmetrically distributed up and down and have the same internal structure, a cavity I is formed in the middle of the upper shell, and a cavity II is formed in the middle of the lower shell. Second cavities are formed in the positions, located on the left portion and the right portion of the first cavity, in the upper shell, motors are fixedly installed on the inner walls, close to the first cavity, of the second cavities, output shafts of the motors are fixedly sleeved with first transmission rollers, the outer edges of the first transmission rollers are meshed with transmission toothed belts, and the lower ends of the transmission toothed belts are meshed with second transmission rollers; the movable block is connected with the shell in a sleeving mode, so that the device is suitable for blast holes of different sizes, the applicability of the device is improved, the device is lifted through the first hydraulic rod, large impact of stemming on a grain during filling is avoided, the labor intensity of workers is relieved by arranging the tamping block, and the filling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting equipment, in particular to a blasthole filling device used for deep hole blasting in an open-pit mine. Background Art

[0002] As an important raw material in industrial production, most of the ore comes from open-pit mining. Blasting operations are very important in open-pit mining. Open-pit deep hole blasting is widely used due to its scientific and efficient characteristics. Blast hole filling is one of the important processes in blasting operations. The purpose is to make good use of the energy of explosive explosion and improve the rock blasting and crushing effect. The quality and efficiency of the filling operation affect the efficiency, quality and safety of the entire open-pit blasting operation. It is an indispensable and important process in open-pit deep hole blasting operations.

[0003] In the prior art, when a plugging device is used for filling and plugging, the plugging device can only operate on blastholes with fixed apertures, cannot be stably placed in various terrains, and has poor applicability. During the filling process, since the blasthole is too deep, it is easy to form an impact effect on the powder column in the blasthole, which will cause the detonator of the explosive to explode or damage the detonator foot line. When filling and plugging is performed manually, it will cause a large workload for the staff, greatly reducing the efficiency of project completion, and seriously affecting the blasthole filling efficiency. Therefore, in order to solve the above problems, the utility model proposes a blasthole filling device for deep hole blasting in open-pit mines. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a blasthole filling device used for deep hole blasting in open-pit mines. The device is suitable for blastholes of different sizes by connecting a moving block with a shell body, thereby improving the applicability of the device. The device is raised and lowered by a hydraulic rod to avoid a large impact of gun mud on the charge column during filling, thereby providing safety protection. The labor intensity of the staff is reduced by providing a compacting block, thereby accelerating the efficiency of blasthole filling.

[0005] The utility model provides the following technical solution: a blasthole plugging device used for deep hole blasting in an open-pit mine, comprising an upper shell and a lower shell, wherein the upper shell and the lower shell are symmetrically distributed up and down and have the same internal structure, a cavity one is opened in the middle of the upper shell, and cavities two are opened inside the upper shell and located on the left and right parts of the cavity one, respectively, a motor is fixedly installed on the inner wall of the cavity two close to the cavity one, a transmission roller one is fixedly sleeved on the output shaft of the motor, a transmission toothed belt is meshed with the outer extension of the transmission roller one, a transmission roller two is meshed with the lower end of the transmission toothed belt, a threaded rod is fixedly sleeved on the middle part of the transmission roller two, and the threaded rod is movably sleeved in the middle part of the cavity two.

[0006] Preferably, a moving block is movably sleeved on one end of the threaded rod away from cavity one, the moving block is movably sleeved on a side of cavity two away from cavity one, and a rack is fixedly installed on the side of the moving block away from cavity one.

[0007] Preferably, a feed pipe is fixedly installed on the top of the upper shell, a sealing ring is fixedly installed at the connection between the upper shell and the feed pipe, an inner sleeve is fixedly installed on the bottom of the upper shell, an outer sleeve is fixedly installed on the top of the lower shell, and the inner sleeve is movably sleeved on the upper part of the inner cavity of the outer sleeve.

[0008] Preferably, a hydraulic rod 1 is evenly fixedly installed on the bottom of the upper shell and located around the inner sleeve 1, the number of the hydraulic rod 1 is four, the telescopic end of the hydraulic rod 1 is fixedly installed on the upper part of the lower shell, and a protective plate is evenly fixedly installed on the bottom of the upper shell, the number of the protective plates is four and are respectively located on the side of the hydraulic rod 1 away from the inner sleeve 1.

[0009] Preferably, a tamping seat is fixedly installed on the bottom of the lower shell body, a tamping block is movably sleeved on the bottom of the inner cavity of the tamping seat, an inner sleeve 2 is fixedly sleeved on the top of the inner cavity of the tamping seat, and two hydraulic rods are evenly fixedly installed on the top of the inner cavity of the tamping seat and located around the inner sleeve 2, and the number of the two hydraulic rods is four.

[0010] Preferably, the two telescopic ends of the hydraulic rod are fixedly installed at the bottom of the inner cavity of the tamping block, a valve is fixedly sleeved in the center of the bottom of the inner cavity of the tamping block, an outer sleeve second is fixedly installed on the upper part of the valve, and the inner sleeve second is movably sleeved on the upper part of the inner cavity of the outer sleeve second.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The transmission structure is driven by a motor to move the moving block out from the inside of the second cavity. The moving block drives the rack to contact the wall of the blast hole to generate friction. At this time, the entire device is fixed in the blast hole by friction. At the same time, the pressure exerted by the rack on the inner wall of the blast hole can reinforce the blast hole, so that the stability of the device during filling is improved. By using the sleeve connection between the moving block and the upper and lower shells, the device can be used in blast holes of different sizes, which effectively improves the applicability of the device.

[0013] 2. By setting up a protective plate, the normal operation of the hydraulic rod 1 can be prevented from being affected by mud and the like during the use of the device, so that the failure rate of the device is reduced and the durability of the device is improved. The device can be raised after filling a section by the extension and retraction of the hydraulic rod 1, so that the flexibility of the device is improved, and filling at the appropriate position in the blasthole is achieved, avoiding the large impact of the filling mud on the powder column due to the blasthole being too deep, and preventing the occurrence of safety hazards during the construction process.

[0014] 3. When a part of the filling is completed, close the valve and start hydraulic rod 2. The telescopic end of hydraulic rod 2 drives the tamping block to descend. During the descent of the tamping block, the filled gun mud is compacted. After the compaction is completed, hydraulic rod 2 contracts to return the tamping block to its original position. The gun mud is compacted by the tamping block, which reduces the labor intensity of the staff, reduces labor costs, has good economic benefits, effectively improves the efficiency of project completion, and speeds up the filling efficiency of the blasthole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the exterior structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0018] Figure 4 For this utility model Figure 2 Enlarged schematic diagram of point B in the middle.

[0019] In the figure: 1. upper shell; 2. lower shell; 3. cavity one; 4. cavity two; 5. motor; 6. drive roller one; 7. drive belt; 8. drive roller two; 9. threaded rod; 10. moving block; 11. rack; 12. feed pipe; 13. sealing ring; 14. inner casing one; 15. outer casing one; 16. hydraulic rod one; 17. protective plate; 18. tamping seat; 19. tamping block; 20. inner casing two; 21. hydraulic rod two; 22. valve; 23. outer casing two. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4A blasthole plugging device for deep hole blasting in an open-pit mine comprises an upper shell 1 and a lower shell 2. The upper shell 1 and the lower shell 2 are symmetrically distributed up and down and have the same internal structure. A cavity 3 is opened in the middle of the upper shell 1. Cavities 4 are opened in the interior of the upper shell 1 and located on the left and right parts of the cavity 3. A motor 5 is fixedly installed on the inner wall of the cavity 4 close to the cavity 3. A transmission roller 6 is fixedly sleeved on the output shaft of the motor 5. A transmission toothed belt 7 is meshed with the outer extension of the transmission roller 6. A transmission roller 8 is meshed with the lower end of the transmission toothed belt 7. A threaded rod 9 is fixedly sleeved in the middle of the transmission roller 8. The threaded rod 9 is movably sleeved in the middle of the cavity 4. A moving block 10 is movably sleeved at one end of the threaded rod 9 away from the cavity 3. The moving block 10 is movably sleeved at one end of the cavity 4 away from the cavity 3. On the side, a rack 11 is fixedly installed on the side of the moving block 10 away from the cavity 13, the motor 5 drives the transmission roller 16 to rotate, the transmission roller 16 drives the transmission roller 28 to rotate through the transmission toothed belt 7, the transmission roller 28 drives the threaded rod 9 to rotate, and the threaded rod 9 drives the moving block 10 to move out from the inside of the cavity 24 during rotation, and the moving block 10 drives the rack 11 to move, so that the rack 11 contacts the wall of the blast hole to generate friction. At this time, the whole device is fixed in the blast hole by friction, and the pressure applied by the rack 11 to the inner wall of the blast hole can reinforce the blast hole, so that the stability of the device during filling is improved, and at the same time, the sleeve connection between the moving block 10 and the upper and lower shells is utilized, so that the device can be used in blast holes of different sizes, which effectively improves the applicability of the device;

[0022] A feed pipe 12 is fixedly installed on the top of the upper shell 1, a sealing ring 13 is fixedly installed at the connection between the upper shell 1 and the feed pipe 12, an inner sleeve 14 is fixedly installed on the bottom of the upper shell 1, an outer sleeve 15 is fixedly installed on the top of the lower shell 2, the inner sleeve 14 is movably sleeved on the upper part of the inner cavity of the outer sleeve 15, a hydraulic rod 16 is evenly fixedly installed on the bottom of the upper shell 1 and around the inner sleeve 14, the number of hydraulic rods 16 is four, the telescopic end of the hydraulic rod 16 is fixedly installed on the upper part of the lower shell 2, and a protective plate 17 is evenly fixedly installed on the bottom of the upper shell 1 to prevent There are four guard plates 17, which are respectively located on the side of the hydraulic rod 16 away from the inner casing 14. The provision of the guard plates 17 can prevent the normal operation of the hydraulic rod 16 from being affected by mud and the like during the use of the device, thereby reducing the failure rate of the device and improving the durability of the device. The extension and retraction of the hydraulic rod 16 allows the device to rise after a period of filling, thereby improving the flexibility of the device and achieving filling at a suitable position in the blasthole, thereby preventing the filling mud from having a greater impact on the charge column due to the blasthole being too deep, thereby preventing the occurrence of safety hazards during the construction process.

[0023] A tamping seat 18 is fixedly installed at the bottom of the lower shell 2, and a tamping block 19 is movably sleeved at the bottom of the inner cavity of the tamping seat 18. An inner sleeve 20 is fixedly sleeved at the top of the inner cavity of the tamping seat 18. A hydraulic rod 21 is evenly fixedly installed at the top of the inner cavity of the tamping seat 18 and located around the inner sleeve 20. There are four hydraulic rods 21. The telescopic end of the hydraulic rod 21 is fixedly installed at the bottom of the inner cavity of the tamping block 19. A valve 22 is fixedly sleeved at the center of the bottom of the inner cavity of the tamping block 19. An outer sleeve 23 is fixedly installed on the upper part of the valve 22. The inner sleeve 20 is movably sleeved at the upper part of the inner cavity of the outer sleeve 23. The cannon mud for filling is introduced from the feed pipe 12, and the valve 22 is opened so that the cannon mud is sequentially After passing through the cavity 13, inner sleeve 14, outer sleeve 15 in the upper shell 1, the cavity 13, inner sleeve 20 and outer sleeve 23 in the lower shell 2, the filling place is entered. When a part of the filling is completed, the valve 22 is closed to start the hydraulic rod 21. The telescopic end of the hydraulic rod 21 drives the tamping block 19 to descend. During the descent of the tamping block 19, the filled gun mud is compacted. After the compaction is completed, the hydraulic rod 21 contracts to return the tamping block 19 to its original position. The gun mud is compacted by the tamping block 19, which reduces the labor intensity of the staff, reduces the labor cost, has good economic benefits, effectively improves the efficiency of project completion, and speeds up the filling efficiency of the blasthole.

[0024] Working principle: first put the device into the place where filling is needed in the blasthole, start the motor 5 in the cavity 2 4 in the upper shell 1 and the lower shell 2 respectively, the motor 5 drives the transmission roller 1 6 to rotate, the transmission roller 1 6 drives the transmission roller 2 8 to rotate through the transmission toothed belt 7, the transmission roller 2 8 drives the threaded rod 9 to rotate, and the threaded rod 9 drives the moving block 10 to move out from the inside of the cavity 2 4 during the rotation process, and the moving block 10 drives the rack 11 to move, so that the rack 11 contacts the wall of the blasthole to generate friction. At this time, the whole device is fixed in the blasthole by friction, and the gun mud for filling is introduced from the feed pipe 12, and the valve 22 is opened, so that the gun mud passes through the cavity 1 3 in the upper shell 1, the inner sleeve 14, the outer sleeve 15, the cavity 1 3 in the lower shell 2, the inner sleeve 20 and the outer sleeve 23 and then enter the filling place. When a part of the filling is completed, the valve 22 is closed and the hydraulic rod 21 is started. The telescopic end of the hydraulic rod 21 drives the tamping block 19 to descend. During the descent of the tamping block 19, the filled gun mud is compacted. After the compaction is completed, the hydraulic rod 21 contracts to make the tamping block 19 return to its original position, and the output shaft of the motor 5 in the cavity 2 4 in the upper shell 1 rotates in the opposite direction to eliminate the friction between the rack 11 in the upper shell 1 and the wall of the blast hole. At this time, the hydraulic rod 16 is started, and the telescopic end of the hydraulic rod 16 drives the upper shell 1 to rise. After the rising is completed, the output shaft of the motor 5 rotates forward to fix the upper shell 1 to the wall of the blast hole, and then the fixation between the lower shell 2 and the wall of the blast hole is released. The hydraulic rod 16 contracts to drive the lower shell 2 to rise, and the valve 22 is opened again for filling. Repeating the above operation can achieve blast hole filling.

Claims

1. A blasthole plugging device for deep hole blasting in an open-pit mine, comprising an upper shell (1) and a lower shell (2), characterized in that: The upper shell (1) and the lower shell (2) are symmetrically distributed up and down and have the same internal structure. A cavity (3) is provided in the middle of the upper shell (1). Cavity (4) is provided inside the upper shell (1) and located on the left and right sides of cavity (3). A motor (5) is fixedly installed on the inner wall of cavity (4) close to cavity (3). A transmission roller (6) is fixedly sleeved on the output shaft of the motor (5). A transmission toothed belt (7) is meshed with the outer extension of the transmission roller (6). A transmission roller (8) is meshed with the lower end of the transmission toothed belt (7). A threaded rod (9) is fixedly sleeved on the middle of the transmission roller (8). The threaded rod (9) is movably sleeved in the middle of cavity (4).

2. The blast hole plugging device for deep hole blasting in an open-pit mine according to claim 1, characterized in that: The end of the threaded rod (9) away from the cavity one (3) is movably sleeved with a moving block (10), and the moving block (10) is movably sleeved on the side of the cavity two (4) away from the cavity one (3), and a rack (11) is fixedly installed on the side of the moving block (10) away from the cavity one (3).

3. The blast hole plugging device for deep hole blasting in an open-pit mine according to claim 1, characterized in that: A feed pipe (12) is fixedly mounted on the top of the upper shell (1), a sealing ring (13) is fixedly mounted at the connection between the upper shell (1) and the feed pipe (12), an inner sleeve (14) is fixedly mounted on the bottom of the upper shell (1), an outer sleeve (15) is fixedly mounted on the top of the lower shell (2), and the inner sleeve (14) is movably sleeved on the upper part of the inner cavity of the outer sleeve (15).

4. The blast hole plugging device for deep hole blasting in an open-pit mine according to claim 3, characterized in that: A hydraulic rod (16) is evenly fixedly installed on the top of the lower shell (2) and around the outer sleeve (15). The number of the hydraulic rods (16) is four. The telescopic end of the hydraulic rod (16) is fixedly installed on the bottom of the upper shell (1). The bottom of the upper shell (1) is evenly fixedly installed with a protective plate (17). The number of the protective plates (17) is four and they are respectively located on the side of the hydraulic rod (16) away from the inner sleeve (14).

5. The blast hole plugging device for deep hole blasting in an open-pit mine according to claim 1, characterized in that: A tamping seat (18) is fixedly mounted on the bottom of the lower shell (2); a tamping block (19) is movably sleeved on the bottom of the inner cavity of the tamping seat (18); an inner sleeve (20) is fixedly sleeved on the top of the inner cavity of the tamping seat (18); two hydraulic rods (21) are evenly fixedly mounted on the top of the inner cavity of the tamping seat (18) and located around the inner sleeve (20); and the number of the two hydraulic rods (21) is four.

6. The blast hole plugging device for deep hole blasting in an open-pit mine according to claim 5, characterized in that: The telescopic end of the second hydraulic rod (21) is fixedly mounted on the bottom of the inner cavity of the tamping block (19); a valve (22) is fixedly sleeved at the center of the bottom of the inner cavity of the tamping block (19); an outer sleeve (23) is fixedly mounted on the upper part of the valve (22); and the second inner sleeve (20) is movably sleeved on the upper part of the inner cavity of the second outer sleeve (23).

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