A charging device for mine blasting

Abstract

The present invention proposes a charging device for mine blasting, which relates to the field of blasting equipment. A charging device for mine blasting includes a plurality of detachably connected connecting joints, the connecting joints are provided with a charging barrel, the charging barrel includes an upper cover, a barrel body and a lower cover, the upper cover and the lower cover are respectively covered at the upper and lower ends of the barrel body, the barrel body and the connecting joint are connected by a connecting rod, the upper cover and the lower cover are both provided with perforations, the connecting joint is penetrated in the perforations, and the connecting joint is also provided with a guide hole for the passage of a detonating cord; the present invention adopts the structure of the connecting joint and the charging barrel, which can accurately determine the charging position and spacing distance of the interval charging, and can be transported in batches and sections, which can meet the transportation needs of blasting devices with different charging amounts, and make the charging device more stable and safe during the transportation process, which can achieve intermittent, continuous and semi-continuous operations, which can be suitable for large-scale mechanical construction, and can also be constructed by manpower, with high flexibility and low use cost.

Description

Technical Field

[0001] The invention relates to the technical field of blasting equipment, in particular to a charging device for mine blasting. Background Art

[0002] Blasting is a project that uses the huge pressure generated by the explosion of explosives in soil, rock or objects to break soil, rock or objects. In order to achieve a good blasting effect, the mass of explosives required in the blasting process is usually calculated based on the soil quality and blasting area, and then according to the calculated amount of explosives, several blast holes for placing explosives are opened on the ground and explosives are installed in the blast holes.

[0003] In the prior art, when blasting workers install explosives into a blasthole, they use safety ropes, pull ropes, etc. to transport explosives into the blasthole in sequence. However, the safety rope is located on the outside of the tube body, which increases the actual outer diameter of the tube body and increases the friction resistance between the tube body and the blasthole wall when advancing or withdrawing. When the safety rope is stretched, the tube body is eccentrically stressed, which is prone to "stuck". In addition, the explosives are transported into the blasthole through multiple charging units. Reloading after disconnection is likely to cause discontinuous charging and interruption of explosion transmission. It is inconvenient to perform interval charging, and the charging position and interval distance of the interval charging are inaccurate.

[0004] Therefore, we propose a charging device for mine blasting. Summary of the invention

[0005] The object of the present invention is to provide a charging device for mine blasting, which can accurately determine the charging position and spacing distance of interval charges, and can be transported in batches and sections, can meet the transportation needs of blasting devices with different charges, and make the charging device more stable and safe during transportation, can achieve intermittent, continuous and semi-continuous operations, can be suitable for large-scale mechanical construction, and can also be constructed using manpower, with high flexibility and low use cost.

[0006] The embodiment of the present invention is achieved as follows:

[0007] An embodiment of the present application provides a charging device for mine blasting, which includes a plurality of detachably connected connecting joints, wherein the connecting joint is provided with a charging cartridge, and the charging cartridge includes an upper cover, a barrel and a lower cover, wherein the upper cover and the lower cover are respectively covered at the upper and lower ends of the barrel, and the barrel and the connecting joint are connected by a connecting rod, and the upper cover and the lower cover are both provided with through holes, and the connecting joint is penetrated through the through holes, and the connecting joint is also provided with a guide hole for the passage of a detonating cord.

[0008] In some embodiments of the present invention, the upper cover and the lower cover are both detachably connected to the barrel body.

[0009] In some embodiments of the present invention, the barrel body comprises two half barrels, and the two half barrels are snap-connected.

[0010] In some embodiments of the present invention, the inner wall of the semi-cylinder is provided with a first fixing groove, the outer wall of the connecting section is provided with a second fixing groove, and both ends of the connecting rod are respectively clamped in the first fixing groove and the second fixing groove.

[0011] In some embodiments of the present invention, a plurality of the first fixing grooves and a plurality of the second fixing grooves are provided.

[0012] In some embodiments of the present invention, the above-mentioned half cylinder is also provided with a blasting hole.

[0013] In some embodiments of the present invention, the connection joint located at the top of the charging device for mine blasting is provided with a blasthole plug, and the blasthole plug includes a plug disc and a plug body, the plug body is fixedly connected to the connection joint, and the plug disc is detachably connected to the plug body.

[0014] In some embodiments of the present invention, the plug tray is provided with a handle.

[0015] In some embodiments of the present invention, the plurality of connection sections are further connected in series via a fixing rope.

[0016] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0017] The present invention comprises a plurality of detachably connected connection joints, and the detachably connected manner can facilitate the installation by blasting workers and the sequential conveying of explosives into blastholes. The connection joint is provided with a charge cartridge, and the charge cartridge is used for placing explosives. The charge cartridge comprises an upper cover, a barrel and a lower cover, and the upper cover and the lower cover are respectively covered at the upper and lower ends of the barrel, and the barrel and the connection joint are connected by a connecting rod, and the connecting rod is used for fixing the charge cartridge on the connection joint to prevent the charge cartridge from moving along the connection joint, resulting in failure to realize interval charging. The upper cover and the lower cover are provided with perforations, and can move and rotate relative to the connection joint, so that the upper cover and the lower cover are convenient for installation and disassembly of the barrel and the blasting workers are also convenient for installing the explosives into the barrel, and the connection joint is also provided with a guide hole for the detonating cord to pass through, so that the detonating cord is convenient for connecting the explosives. When blasting, first determine the depth of the blasthole and the length of the charge device, then determine the charge position and spacing, so as to determine the charge quantity and quality required for each connection joint. After the determination, it is not necessary to install it as a complete charge device, and it can be transported in batches and sections, which can meet the transportation needs of blasting devices with different charge amounts, and make the charge device more stable and safe during transportation. It can be intermittent, continuous and semi-continuous. It is suitable for large-scale mechanical construction and can also be constructed by manpower. It is highly flexible and has low cost. The hollow structure of the connection joint allows the detonating cord to be routed from the inside, which does not increase the actual outer diameter of the tube body, and does not increase the friction resistance between the tube body and the blasthole wall when advancing or withdrawing. Secondly, because the connection joint is in the middle of the charge device, the charge device is easier to advance or withdraw when entering the blasthole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 An exploded view of a connecting joint structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the connecting rod installation structure;

[0021] Figure 3 Schematic diagram of the external structure of the barrel;

[0022] Figure 4 It is a structural schematic diagram of a connection section provided with a blasthole plug;

[0023] Figure 5 It is a structural schematic diagram of the fixed rope series connection section.

[0024] Icons: 1. Connecting joint; 2. Cartridge; 3. Upper cover; 4. Barrel body; 5. Lower cover; 6. Connecting rod; 7. Perforation; 8. Guide hole; 9. Half barrel; 10. First fixing groove; 11. Second fixing groove; 12. Detonating cord; 13. Blasting hole; 14. Gunhole plug; 15. Plug plate; 16. Plug body; 17. Handle; 18. Fixing rope. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0027] Example 1

[0028] This embodiment provides a charging device for mine blasting, such as Figure 1-4 As shown, it includes a plurality of detachably connected connection sections 1, each of which can be rotatably connected or threadedly connected. The detachable connection method can facilitate the installation of blasting workers and the sequential delivery of explosives into the blastholes. The connection section 1 is provided with a charge cartridge 2; the charge cartridge 2 is used to place explosives, and the charge cartridge 2 includes an upper cover 3, a barrel 4 and a lower cover 5. The upper cover 3 and the lower cover 5 are respectively covered at the upper and lower ends of the barrel 4. The barrel 4 and the connection section 1 are connected by a connecting rod 6. The connecting rod 6 is used to fix the charge cartridge 2 on the connection section 1 to prevent the charge cartridge 2 from moving along the connection section 1, resulting in the inability to achieve intermittent charging. Both the upper cover 3 and the lower cover 5 are provided with a through hole 7, and the connecting section 1 is penetrated through the through hole 7. The upper cover 3 and the lower cover 5 can be rotatably connected with the barrel 4 or can be threadedly connected. Since the upper cover 3 and the lower cover 5 are provided with the through hole 7, they can move and rotate relative to the connecting section 1, which is convenient for the upper cover 3 and the lower cover 5 to be installed and disassembled from the barrel 4, and also convenient for blasting workers to install explosives into the barrel 4; the connecting section 1 is also provided with a guide hole 8 for the detonating cord 12 to pass through. The detonating cord 12 is also called a detonating wire, which is made of cotton thread or hemp thread wrapped around a high explosive and a core line, and a moisture-proof agent is applied on the surface. It is often used to detonate multiple charges at the same time.

[0029] In this embodiment, the lengths of the connecting sections 1 are generally the same, and different lengths of connecting sections 1 can also be provided as required. Generally, when blasting, the depth of the blasthole and the length of the charging device are first determined, and then the charging position and spacing distance are determined, so as to determine the charging quantity and quality required for each connecting section 1. After the determination, it is not necessary to install it as a complete charging device, and it can be transported in batches and sections, which can meet the transportation needs of blasting devices with different charging amounts, and make the charging device more stable and safe during the transportation process, and can achieve intermittent, continuous and semi-continuous operations, which can be suitable for large-scale mechanical construction, and can also be constructed by manpower, with high flexibility and low use cost.

[0030] When the above embodiment is used, the explosive needs to be installed on the connecting section 1 first. During installation, the upper cover 3, the barrel 4 and the lower cover 5 of the cartridge are removed respectively, the connecting rod 6 is fixed at the selected position of the connecting section 1, and the barrel 4 is fixed on the connecting rod 6. At this time, the lower cover 5 is installed below the barrel 4, and then the explosive to be filled is loaded into the barrel 4 and the detonating cord 12 is passed through the guide hole 8. Finally, the upper cover 3 is installed above the barrel 4. The height of the explosive is slightly lower than the height of the barrel 4. If shaking is to be avoided, some fillers can be filled in the barrel 4 to fill the remaining space to avoid shaking of the explosive in the barrel 4. The fillers can be gaskets or other pads. After installing the explosive on one connecting section 1, the next connecting section 1 is connected to the previous connecting section 1 on which the explosive is installed, and the operation of installing the explosive on the next connecting section 1 is continued. After installation, it can be inserted into the blast hole for blasting operation.

[0031] In some implementations of the above embodiments, the connecting section 1 is a cylindrical hollow structure. The hollow structure enables the detonating cord 12 and the like to be routed from the inside without increasing the actual outer diameter of the tube body and increasing the frictional resistance between the tube body and the borehole wall during advancement or withdrawal. Secondly, since the connecting section 1 is located in the middle of the charging device, the charging device is easier to advance or withdraw when entering the borehole.

[0032] In some other implementations of the above embodiments, the connecting section 1 is a hexagonal hollow structure. The hexagonal structure can reduce the space waste of the connecting section 1 during transportation, save costs, and is not prone to rolling when placed.

[0033] Furthermore, if Figure 5 As shown, multiple connection sections 1 are also connected in series through a fixed rope 18. The interior of the connection section 1 is a hollow structure, so that the charge device formed by the connection can be routed in the middle. At the same time, the fixed rope 18 is used in series to improve the structural safety of the charge device, making it less likely to be disconnected, and also making it easier to push it into or out of the blast hole.

[0034] Example 2

[0035] This embodiment provides a charging device for mine blasting, such as Figure 1 As shown, it is basically the same as embodiment 1, and the main difference between the two is that the upper cover 3 and the lower cover 5 are both detachably connected to the barrel 4. The upper cover 3, the lower cover 5 and the barrel 4 can be detachably connected by means of a snap connection or a threaded connection, which is convenient for secondary inspection or subsequent adjustment after installation. The upper cover 3 and the lower cover 5 are both detachable structures, which is convenient for the transportation of the drug cartridge 2, and the upper cover 3 and the lower cover 5 can be of the same specifications to achieve the purpose of facilitating production.

[0036] In some implementations of the above embodiments, the barrel body 4 includes two half barrels 9, which are clamped together. When the barrel body 4 is a full circle, it needs to be inserted from one end of the connecting section 1 and the lower cover 5, the barrel body 4, and the upper cover 3 need to be sleeved in sequence. In this way, when multiple connecting sections 1 are connected together, the sleeve work is relatively troublesome, so the barrel body 4 is changed into a structure of two half barrels 9, and the edges of the two half barrels 9 are a clamping structure, which can facilitate the installation of the barrel body 4 on the connecting section 1. At this time, only the lower cover 5 and the upper cover 3 need to be sleeved; in order to strengthen the structure of the barrel body 4 so that the barrel body 4 is not easy to be dislocated into two half barrels 9 during transportation or use, the lower cover 5 and the upper cover 3 are provided with deeper edges at the clamping or threaded connection to enhance the control of the barrel body 4 and prevent the barrel body 4 from being dislocated into two half barrels 9.

[0037] Example 3

[0038] This embodiment provides a charging device for mine blasting, such as Figure 2 As shown, it is basically the same as Example 1 or Example 2, and the main difference between the two is that the inner wall of the half cylinder 9 is provided with a first fixing groove 10, the outer wall of the connecting section 1 is provided with a second fixing groove 11, and the two ends of the connecting rod 6 are respectively clamped in the first fixing groove 10 and the second fixing groove 11. The connecting rod 6 is changed from a fixed mode to a detachable mode, so that it can be checked twice or adjusted later. When in use, one end of the connecting rod 6 is first inserted into the first fixing groove 10, and then the second fixing groove 11 on the half cylinder 9 is aligned with the other end of the connecting rod 6 and inserted, and then the other half cylinder 9 is also installed in the same way. After the half cylinder 9 is combined into the cylinder body 4, the upper cover 3 and the lower cover 5 are installed and the explosive is installed in the cylinder body 4.

[0039] In this embodiment, a plurality of first fixing grooves 10 and second fixing grooves 11 are provided. The plurality of first fixing grooves 10 are distributed at different positions of the outer wall of the connecting section 1, so that the charge cartridge 2 can be installed at different positions of the connecting section 1, which is convenient for realizing interval charging. The plurality of second fixing grooves 11 are distributed on the half cylinder 9, so that the position of the connecting rod 6 can be adjusted in the cylinder body 4. At this time, the connecting rod 6 can be close to the upper cover 3 or the lower cover 5, or located in the middle of the cylinder body 4, which is convenient for adjusting the explosive in the cylinder body 4 and further widening the position range of the charge cartridge 2 on the connecting section 1.

[0040] In some implementations of the above embodiments, Figure 3 As shown, the half cylinder 9 is also provided with a blasting hole 13. The blasting hole 13 is used to reduce the influence of the cylinder body 4 on the explosion power when the explosive explodes, and ensure that the blasting impact of the explosive fully acts on the rock wall, thereby ensuring the power of the blasting and improving the blasting effect.

[0041] Example 4

[0042] This embodiment provides a charging device for mine blasting, such as Figure 4 As shown, it is basically the same as any one of Examples 1-3, and the main difference between the two is that the connection section 1 located at the top of the charging device for mine blasting is provided with a blasthole plug 14, and the blasthole plug 14 includes a plug disc 15 and a plug body 16, the plug body 16 is fixedly connected to the connection section 1, and the plug disc 15 is detachably connected to the plug body 16. The blasthole plug 14 is used to block the blasthole. When the charging device completely enters the blasthole, the blasthole plug 14 set on the last section of the connection section 1 blocks the blasthole. When blocking, the end of the plug body 16 away from the plug disc 15 has a smaller diameter, and the closer to the plug disc 15, the larger the diameter, and the diameter of the plug disc 15 is larger than the diameter of the blasthole, and can cover the blasthole. Since the diameter of the plug disc 15 is large, it can be detachably connected to the plug body 16 by bolts, which is convenient for disassembly during transportation.

[0043] In this embodiment, the plug tray 15 is provided with a handle 17. The handle 17 is provided at the bottom of the plug tray 15, so that the entire charging device can be carried or controlled by the handle 17.

[0044] In summary, the embodiments of the present invention provide a charging device for mine blasting, which has at least the following advantages or beneficial effects:

[0045] The present invention comprises a plurality of detachably connected connection joints 1, and the detachably connected manner can facilitate the installation by blasting workers and the sequential delivery of explosives into the blastholes. The connection joint 1 is provided with a charge barrel 2, and the charge barrel 2 is used for placing explosives. The charge barrel 2 comprises an upper cover 3, a barrel body 4 and a lower cover 5, and the upper cover 3 and the lower cover 5 are respectively covered at the upper and lower ends of the barrel body 4, and the barrel body 4 is connected to the connection joint 1 through a connecting rod 6, and the connecting rod 6 is used to fix the charge barrel 2 on the connection joint 1 to prevent the charge barrel 2 from moving along the connection joint 1, resulting in failure to realize intermittent charging. The upper cover 3 and the lower cover 5 are provided with perforations 7, which can move and rotate relative to the connection joint 1, so as to facilitate the installation and disassembly of the upper cover 3 and the lower cover 5 and the barrel body 4, and also facilitate the blasting workers to install the explosives into the barrel body 4. The connection joint 1 is also provided with a guide hole 8 for the detonating cord 12 to pass through, so as to facilitate the connection between the detonating cord 12 and the explosives. When blasting, first determine the depth of the blasthole and the length of the charge device, then determine the charge position and spacing, so as to determine the charge quantity and quality required for each connection section 1. After the determination, it is not necessary to install it as a complete charge device, and it can be transported in batches and sections, which can meet the transportation needs of blasting devices with different charge amounts, and make the charge device more stable and safe during transportation. It can achieve intermittent, continuous and semi-continuous operations, which is suitable for large-scale mechanical construction and can also be constructed by manpower, with high flexibility and low cost. The hollow structure of the connection section 1 can make the detonating cord 12 and the like route from the inside, which does not increase the actual outer diameter of the tube body, and does not increase the friction resistance between the tube body and the blasthole wall when advancing or withdrawing. Secondly, because the connection section 1 is in the middle of the charge device, the charge device is easier to advance or withdraw when entering the blasthole.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A charging device for mine blasting, characterized in that: It comprises a plurality of detachably connected connecting joints, each of which is provided with a drug-loading cartridge, and the drug-loading cartridge comprises an upper cover, a barrel and a lower cover, the upper cover and the lower cover respectively cover the upper and lower ends of the barrel, the barrel and the connecting joint are connected via a connecting rod, the upper cover and the lower cover are both provided with through holes, the connecting joint is penetrated through the through holes, and the connecting joint is also provided with a guide hole for the passage of a detonating cord; the upper cover and the lower cover are both detachably connected to the barrel, the barrel comprises two half barrels, the two half barrels are clamped together, the inner wall of the half barrel is provided with a first fixing groove, the outer wall of the connecting joint is provided with a second fixing groove, the two ends of the connecting rod are respectively clamped with the first fixing groove and the second fixing groove; a plurality of the first fixing groove and the second fixing groove are provided.

2. A charging device for mine blasting according to claim 1, characterized in that: The half cylinder is also provided with a blasting hole.

3. A charging device for mine blasting according to claim 1, characterized in that: The connection joint located at the top of the charging device for mine blasting is provided with a blasthole plug, and the blasthole plug comprises a plug disc and a plug body, the plug body is fixedly connected to the connection joint, and the plug disc is detachably connected to the plug body.

4. A charging device for mine blasting according to claim 3, characterized in that: The plug tray is provided with a handle.

5. A charging device for mine blasting according to claim 1, characterized in that: The plurality of connection sections are also connected in series via a fixing rope.

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