A blasting charge device for mining

Abstract

The utility model relates to the technical field of blasting charging device, a kind of ore body exploitation blasting charging device, including vertical cylinder, the lower end of vertical cylinder is fixedly connected with reaming ring, the lower surface of reaming ring is fixedly connected with the placement cylinder, the inside of placement cylinder is equipped with cavity, the outer surface of placement cylinder is equipped with the opening of extension into cavity inside, the bottom wall of cavity is fixedly connected with limit protrusion, the inside of cavity is rotatably connected with explosive cartridge, the outer surface of explosive cartridge is equipped with placement slot, the inside of placement slot is provided with explosive, the inside of placement slot is slidably connected with push plate, push plate is in contact with explosive, the side surface of push plate away from explosive is fixedly connected with guide rod, explosive cartridge can be synchronously driven to descend when drilling, to avoid soil backfill when drill bit is retracted, to make explosive actual depth and predetermined depth same, guarantee the stability of blasting effect.

Description

Technical Field

[0001] This utility model relates to the technical field of blasting charging devices, specifically a blasting charging device for ore body mining. Background Technology

[0002] Mining blasting is a technique that uses explosive energy to break rocks during mining. By designing blasting parameters and arranging blast holes, explosives are loaded in a specific manner and detonated to separate and break the ore from the surrounding rock. It must balance efficiency and safety, taking into account rock properties, explosive type, and detonation method. It can be divided into shallow hole blasting and deep hole blasting, and is widely used in open-pit and underground mines. It is a key link in obtaining mineral resources and must be strictly followed in accordance with safety regulations to prevent accidents.

[0003] In existing blasting techniques, explosives need to be placed into pre-dug blast holes. However, since the sidewalls of the blast holes are not protected, there may be soil left at the bottom of the blast hole after the drill bit is pulled out. This raises the bottom of the blast hole, causing the explosives to be placed shallower than expected, which may result in the blasting range not reaching the expected depth and affecting the blasting results. In view of this, we propose a blasting charging device for ore body mining. Utility Model Content

[0004] The purpose of this utility model is to provide a blasting charging device for ore body mining to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blasting charging device for ore body mining, comprising a vertical cylinder, an expanding ring fixedly connected to the lower end of the vertical cylinder, a placement cylinder fixedly connected to the lower surface of the expanding ring, a cavity inside the placement cylinder, an opening extending into the cavity on the outer surface of the placement cylinder, a limiting protrusion fixedly connected to the bottom wall of the cavity, an explosive cartridge rotatably connected inside the cavity, a placement groove on the outer surface of the explosive cartridge, explosive disposed inside the placement groove, a push plate slidably connected inside the placement groove, the push plate contacting the explosive, a guide rod fixedly connected to the side surface of the push plate away from the explosive, a through groove extending from the lower surface of the upper surface of the explosive cartridge, a clearance groove on the inner wall of the through groove, and a push-out component on the guide rod.

[0006] Preferably, the ejection assembly includes a mounting plate, which is fixedly connected to the end of the guide rod. A spring is fixedly connected to the mounting plate, and the end of the spring is fixedly connected to the inner wall of the relief groove.

[0007] Preferably, the mounting plate is adapted to the clearance groove, a rotating ring is fixedly connected to the upper surface of the explosive cartridge, and an annular groove is formed on the top wall of the cavity.

[0008] Preferably, the rotating ring is adapted to the annular groove, a motor is fixedly connected to the bottom wall of the cavity, and a transmission rod is fixedly connected to the output end of the motor through a coupling.

[0009] Preferably, a gear is fixedly connected to the lower end of the transmission rod, and a toothed ring is fixedly connected to the inner wall of the through groove, the toothed ring meshing with the gear.

[0010] Preferably, a drill bit is fixedly connected to the lower surface of the placement cylinder, and a threaded connecting cylinder is fixedly connected to the upper surface of the vertical cylinder.

[0011] Preferably, a guide ring is movably fitted on the outer surface of the vertical cylinder, and a support plate is rotatably connected to the outer surface of the guide ring.

[0012] Preferably, a support leg is fixedly connected to the outer surface of the support plate, and a stabilizing plate is fixedly connected to the lower end of the support leg. The stabilizing plate has a fixing hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention allows the explosive cartridge to descend simultaneously during drilling, thus preventing soil backfilling when the drill bit retracts, ensuring that the actual depth of the explosive is the same as the predetermined depth and guaranteeing stable blasting results.

[0015] This invention utilizes a rotating explosive cartridge design to simultaneously place multiple sets of explosives, reducing the filling interval and enabling the placement of drilling explosives in a single drilling cycle, thus reducing work steps. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a blasting charging device for ore body mining according to the present invention;

[0017] Figure 2 This is a schematic diagram of the threaded connecting cylinder of this utility model;

[0018] Figure 3 This is a schematic diagram of the explosive cartridge of this utility model;

[0019] Figure 4 This is a schematic diagram of the separation of the explosive cartridge of this utility model.

[0020] In the diagram: 1. Vertical cylinder; 2. Placement cylinder; 3. Cavity; 4. Opening; 5. Limiting protrusion; 6. Explosive cartridge; 7. Placement groove; 8. Explosive; 9. Push plate; 10. Guide rod; 11. Through groove; 12. Clearance groove; 13. Mounting plate; 14. Spring; 15. Rotating ring; 16. Annular groove; 17. Motor; 18. Transmission rod; 19. Gear; 20. Gear ring; 21. Drill bit; 22. Threaded connecting cylinder; 23. Guide ring; 24. Support plate; 25. Support leg; 26. Stabilizing plate; 27. Fixing hole; 28. Expanding ring. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] Please see Figures 1-4 As shown, a blasting charging device for ore body mining includes a vertical cylinder 1. A borehole expanding ring 28 is fixedly connected to the lower end of the vertical cylinder 1. A placement cylinder 2 is fixedly connected to the lower surface of the borehole expanding ring 28. A cavity 3 is formed inside the placement cylinder 2. An opening 4 extending into the cavity 3 is formed on the outer surface of the placement cylinder 2. A limiting protrusion 5 is fixedly connected to the bottom wall of the cavity 3. An explosive cartridge 6 is rotatably connected inside the cavity 3. A placement groove 7 is formed on the outer surface of the explosive cartridge 6. Explosive 8 is placed inside the placement groove 7. An internal sliding connection is provided with a push plate 9, which contacts the explosive 8. A guide rod 10 is fixedly connected to the side surface of the push plate 9 away from the explosive 8. A through groove 11 extending from the lower surface of the explosive cartridge 6 is provided on the upper surface of the cartridge 6. A clearance groove 12 is provided on the inner wall of the through groove 11. An ejection component is provided on the guide rod 10, which can simultaneously drive the explosive cartridge 6 to descend during drilling, thereby avoiding soil backfilling when the drill bit 21 retracts, thus ensuring that the actual depth of the explosive 8 is the same as the predetermined depth, and ensuring the stability of the blasting effect.

[0023] Furthermore, the ejector assembly includes a mounting plate 13, which is fixedly connected to the end of the guide rod 10. A spring 14 is fixedly connected to the mounting plate 13, and the end of the spring 14 is fixedly connected to the inner wall of the relief groove 12. The mounting plate 13 is adapted to the relief groove 12. A rotating ring 15 is fixedly connected to the upper surface of the explosive cartridge 6. An annular groove 16 is formed on the top wall of the cavity 3, and the rotating ring 15 is adapted to the annular groove 16. A motor 17 is fixedly connected to the bottom wall of the cavity 3. A transmission rod 18 is fixedly connected to the output end of the motor 17 through a coupling. A gear 19 is fixedly connected to the lower end of the transmission rod 18. A gear 19 is fixedly connected to the inner wall of the through groove 11. A toothed ring 20 meshes with a gear 19. A drill bit 21 is fixedly connected to the lower surface of the placement cylinder 2. A threaded connecting cylinder 22 is fixedly connected to the upper surface of the vertical cylinder 1. A guide ring 23 is movably sleeved on the outer surface of the vertical cylinder 1. A support plate 24 is rotatably connected to the outer surface of the guide ring 23. A support leg 25 is fixedly connected to the outer surface of the support plate 24. A stabilizing plate 26 is fixedly connected to the lower end of the support leg 25. A fixing hole 27 is provided on the stabilizing plate 26. By utilizing the rotary design of the explosive cartridge 6, multiple sets of explosives 8 can be placed simultaneously, reducing the filling interval. This allows the function of placing the drilling explosives 8 in a single drilling cycle, reducing the number of working steps.

[0024] Working principle: When drilling and placing explosive 8, the stabilizing plate 26 can be placed in the designated position. Then, the fixing pin is hammered into the fixing hole 27, eventually extending into the ground. The motor 17 is then controlled to rotate, which synchronously drives the gear 19 via the transmission rod 18. The gear 19 then synchronously drives the gear ring 20, which in turn drives the explosive cartridge 6. The rotation of the explosive cartridge 6 aligns the placement groove 7 with the opening 4, at which point the explosive 8 is placed inside the placement groove 7. Placing the explosive 8 pushes the push plate 9, which in turn drives the mounting plate 13 via the guide rod 10. The movement of the mounting plate 13 stretches the spring 14. After the explosive 8 is placed, the explosive cylinder 6 is rotated again. The inner wall of the cavity 3 is used to prevent the explosive 8 from being pushed out. Then, the drill bit 21, the placement cylinder 2, and the vertical cylinder 1 are brought into contact with the ground through the guide ring 23. The external drive drives the drill bit 21 to rotate, so that the drill bit 21 drills a blast hole in the ground. After reaching the predetermined depth, the explosive cylinder 6 can be rotated again by the motor 17. After the explosive cylinder 6 rotates, the placement groove 7 is aligned with the opening 4 again. At this time, the elastic force of the spring 14 can be used to push the mounting plate 13 and the guide rod 10 to move. After the guide rod 10 moves, it drives the push plate 9 to move. After the push plate 9 moves, the explosive 8 is pushed out of the placement cylinder 2 through the opening 4, thus completing the placement of the explosive 8.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A blasting charging device for ore body mining, comprising a vertical cylinder (1), characterized in that, The lower end of the vertical cylinder (1) is fixedly connected to an expanding ring (28), and a placement cylinder (2) is fixedly connected to the lower surface of the expanding ring (28). The placement cylinder (2) has a cavity (3) inside, and an opening (4) extending into the cavity (3) is opened on the outer surface of the placement cylinder (2). A limiting protrusion (5) is fixedly connected to the bottom wall of the cavity (3). An explosive cartridge (6) is rotatably connected inside the cavity (3), and a placement groove is opened on the outer surface of the explosive cartridge (6). 7) The placement groove (7) is provided with explosive (8), and a push plate (9) is slidably connected inside the placement groove (7). The push plate (9) is in contact with the explosive (8). A guide rod (10) is fixedly connected to the side surface of the push plate (9) away from the explosive (8). A through groove (11) extending from the lower surface of the upper surface of the explosive cartridge (6) is provided. A clearance groove (12) is provided on the inner wall of the through groove (11). An ejection component is provided on the guide rod (10).

2. The blasting charging device for ore body mining according to claim 1, characterized in that: The ejection assembly includes a mounting plate (13) which is fixedly connected to the end of the guide rod (10). A spring (14) is fixedly connected to the mounting plate (13), and the end of the spring (14) is fixedly connected to the inner wall of the relief groove (12).

3. The blasting charging device for ore body mining according to claim 2, characterized in that: The mounting plate (13) is adapted to the clearance groove (12), and a rotating ring (15) is fixedly connected to the upper surface of the explosive cartridge (6). An annular groove (16) is provided on the top wall of the cavity (3).

4. The blasting charging device for ore body mining according to claim 3, characterized in that: The rotating ring (15) is adapted to the annular groove (16), and a motor (17) is fixedly connected to the bottom wall of the cavity (3). The output end of the motor (17) is fixedly connected to a transmission rod (18) through a coupling.

5. The blasting charging device for ore body mining according to claim 4, characterized in that: The lower end of the transmission rod (18) is fixedly connected to a gear (19), and the inner wall of the through groove (11) is fixedly connected to a toothed ring (20), which meshes with the gear (19).

6. The blasting charging device for ore body mining according to claim 5, characterized in that: A drill bit (21) is fixedly connected to the lower surface of the placement cylinder (2), and a threaded connecting cylinder (22) is fixedly connected to the upper surface of the vertical cylinder (1).

7. A blasting charging device for ore body mining according to claim 6, characterized in that: The outer surface of the vertical cylinder (1) is movably fitted with a guide ring (23), and the outer surface of the guide ring (23) is rotatably connected with a support plate (24).

8. A blasting charging device for ore body mining according to claim 7, characterized in that: The outer surface of the support plate (24) is fixedly connected to a support leg (25), and the lower end of the support leg (25) is fixedly connected to a stabilizing plate (26). The stabilizing plate (26) has a fixing hole (27).

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