A charging device for mine blasting

Abstract

The application relates to a charging device for mine blasting, and relates to the field of blasting charging components. The charging device comprises a charging part, a lower supporting plate and an upper supporting plate, the charging part comprises an adjusting part, an air bag ring, a supporting plate and a charging bag, the outer part of the adjusting part is sleeved with the air bag ring, the bottom end of the adjusting part is assembled with the lower supporting plate, the top end of the adjusting part is assembled with the upper supporting plate, a plurality of sliding grooves are evenly arranged on the top horizontal surface of the lower supporting plate, a plurality of supporting plates are slidingly installed in the sliding grooves, the top surfaces of the plurality of supporting plates are vertically fixed with the charging bag, the inner wall of the charging bag is attached to the outer wall of the air bag ring, and gunpowder is filled in the charging bag. The air bag ring is inflated and expanded to top-press the charging bag to tightly adhere to the inner wall of a blast hole, the supported explosive bag is completely combined with the blast hole, the existing gap is avoided to cause energy dissipation after blasting, the problem that the mine blasting effect is affected is solved, and the mine blasting effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of explosive charging components, and in particular to a charging device for mining blasting. Background Technology

[0002] Mining blasting is a key step in mining operations, used to break and remove rocks or ores. In mining engineering, blasting is widely used as an essential excavation method. Mining blasting requires specialized drilling machinery to drill blast holes at predetermined locations with the required depth and diameter, and then guide an appropriate amount of explosives into the detonator for detonation.

[0003] The existing publication number CN217058533U, entitled "A Mining Blasting Charging Device," comprises multiple shells and multiple connecting plates. Each shell has a cavity for mounting explosive charges. A connecting plate connects every two adjacent shells, and the shells are connected as a single unit via evenly spaced connecting plates. This application allows for the connection of the required explosive charges to the shells and connecting plates according to actual blasting conditions, achieving better blasting results.

[0004] Regarding the aforementioned technologies, the inventors discovered that when loading explosives for mine blasting, multiple shells are supported by connecting plates, and explosive charges are inserted into these shells for blasting. However, the diameters of the blast holes in the mine vary, and the explosive charges supported by the shells cannot completely fit the blast holes. The gaps that exist cause energy dissipation after blasting, affecting the effectiveness of mine blasting. Utility Model Content

[0005] In order to overcome the problem that the explosive charge supported by the shell cannot completely fit the blast hole due to the different diameters of the blast holes in existing mines, and the gaps that exist cause energy to dissipate after blasting, thus affecting the effect of mine blasting, this application provides a charging device for mine blasting.

[0006] The technical solution of the charging device for mining blasting provided in this application is as follows:

[0007] A charging device for mine blasting includes a charging component, a lower support plate, and an upper support plate. The charging component includes an adjusting component, an airbag ring, support plates, and a charging bag. The adjusting component is fitted with an airbag ring, and the lower support plate is assembled at the bottom of the adjusting component, while the upper support plate is assembled at the top of the adjusting component. Multiple grooves are evenly opened on the top horizontal surface of the lower support plate, and multiple support plates are slidably installed in the multiple grooves. A charging bag is vertically fixed on the top surface of the multiple support plates, and the inner wall of the charging bag is pasted to the outer wall of the airbag ring. The charging bag is filled with gunpowder.

[0008] By adopting the above technical solution, when loading explosives into blast holes drilled in the mine, the lower support plate is assembled at the bottom of the adjusting component. The depth of the adjusting component is adjusted according to the depth of the blast hole, and the lower support plate is pushed into the bottom of the blast hole. Explosives are then added to the explosive bag in the charging component. The upper support plate is then assembled at the outer end of the adjusting component to seal the outer end of the blast hole. Both the explosive bag and the airbag ring are made of polyvinyl chloride, which has good elasticity, facilitating subsequent expansion and tight adhesion to the blast hole. During blasting, to ensure the explosive charge... The explosive charge adheres tightly to the inner wall of the borehole. Gas is supplied to the airbag ring, which inflates and pushes against the bottom support plate of the explosive bag, causing it to slide laterally. This ensures the explosive bag remains firmly against the inner wall of the borehole. Later, the explosive charge in the bag is ignited for mine blasting. In operation, the inflated airbag ring presses against the explosive bag, ensuring it adheres tightly to the borehole wall. This prevents gaps from causing energy loss after blasting, which would otherwise affect the blasting effect and improve the overall blasting efficiency.

[0009] Optionally, the adjusting component includes connecting columns, with two connecting columns symmetrically arranged, and adjacent ends of the two connecting columns respectively fixed with a screw tube and a screw rod, and the adjacent screw tubes and screw rods of the two connecting columns are threadedly connected.

[0010] By adopting the above technical solution, in order to facilitate the application of blasting requirements at different depths of boreholes in the later stage, the two connecting columns of the rotating adjustment component are connected on one side, which drives the two helical tubes and screws to extend spirally, so as to meet the extension support requirements of boreholes at different depths.

[0011] Optionally, studs are fixed to the other end faces of the two connecting columns.

[0012] By adopting the above technical solution, the studs fixed at the other end of the two connecting columns are convenient for later assembly and connection of the lower support plate and the upper support plate at both ends of the adjusting component.

[0013] Optionally, a slider is fixed on the bottom surface of the support plate, and the slider is slidably assembled with a groove on the top surface of the lower support plate.

[0014] By adopting the above technical solution, the bottom slider of the support plate is slidably assembled with the groove on the top surface of the lower support plate. After the airbag ring is inflated, the airbag ring expands. The expanded airbag ring presses against the bottom support plate of the explosive bag and slides laterally on the lower support plate, so that the explosive bag is tightly attached to the inner wall of the borehole.

[0015] Optionally, an inflation tube is fixed to the top surface of the airbag ring through the upper support plate, and the end of the inflation tube is filled with a plug.

[0016] By adopting the above technical solution, during inflation, the plug on the inflation tube on the airbag ring is opened, air is introduced through the inflation tube on the airbag ring, and the airbag ring is inflated. After inflation is completed, the plug is used to seal the inflation tube to prevent air leakage later.

[0017] Optionally, a lower screw hole is provided through the middle of the lower support plate, and the lower screw hole of the lower support plate is threaded with the stud on the bottom connecting column of the adjusting component. A lower sealing ring is fitted and fixed on the outer wall of the lower support plate.

[0018] By adopting the above technical solution, the lower screw hole in the middle of the lower support plate is connected to the stud thread at the bottom of the adjusting part. At the same time, in order to prevent the charge from tilting inside the borehole, a fixed lower sealing ring is sleeved on the outer wall of the lower support plate. The lower sealing ring undergoes compression deformation to support the lower support plate in the borehole, thus ensuring the stability of the charge.

[0019] Optionally, a screw seat is provided at the end of the lower support plate away from the connecting column, and the screw seat is threaded onto the stud of the connecting column, and multiple support columns are vertically fixed at the end of the screw seat away from the lower support plate.

[0020] By adopting the above technical solution, the screw seat is threaded onto the stud of the connecting column, so that the lower support plate is far away from the end assembled on the connecting column, and then the multiple supports on the screw seat support the stability of the charge in the borehole.

[0021] Optionally, an upper screw hole is provided through the middle of the upper support plate, and the upper screw hole of the upper support plate is threaded with the stud on the top connecting column of the adjusting component. An upper sealing ring is fitted and fixed on the outer wall of the upper support plate, and multiple through holes for inserting ignition devices are evenly provided through the upper support plate.

[0022] By adopting the above technical solution, the upper screw hole on the upper support plate is used to assemble with the stud thread on the top connecting column of the adjusting component to seal the outer port of the blast hole. The upper sealing ring fixed on the outer wall of the upper support plate ensures the sealing performance of the outer port of the blast hole. At the same time, the ignition device is inserted into the gunpowder in the charge bag through the through hole to ignite the gunpowder in the charge bag.

[0023] In summary, this application includes at least one of the following beneficial technical effects: When loading explosives into blast holes drilled in mines, the lower support plate is assembled at the bottom of the adjusting component. The depth of the adjusting component is adjusted according to the depth of the blast hole, and the lower support plate is pushed into the bottom of the blast hole. Explosives are then added to the explosive bag in the explosive component. The upper support plate is then assembled at the outer end of the adjusting component to seal the outer end of the blast hole. Both the explosive bag and the airbag ring are made of polyvinyl chloride, which has good elasticity, facilitating subsequent expansion and tight adhesion to the blast hole. During blasting, to ensure the gunpowder adheres tightly to the inner wall of the borehole, the gasbag ring is supplied with gas. After inflation, the gasbag ring expands, pressing against the bottom support plate of the explosive bag, causing it to slide laterally on the lower support plate. This ensures the explosive bag is firmly attached to the inner wall of the borehole. Later, the gunpowder in the explosive bag is ignited for mine blasting. In use, the inflation and expansion of the gasbag ring presses the explosive bag tightly against the inner wall of the borehole, ensuring the supported explosive charge completely fits the borehole. This avoids gaps that could lead to energy loss after blasting, thus improving the effectiveness of mine blasting. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the overall structure of the embodiment of this application in an exploded state;

[0026] Figure 3 This is a schematic diagram of the structure of the charge component in the disassembled state according to an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the structure of the adjusting component in the disassembled state according to an embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the support plate in the disassembled state according to an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the upper support plate in an exploded state according to an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Charge component; 11. Adjusting component; 111. Connecting column; 112. Screw tube; 113. Screw; 114. Screw stud; 12. Airbag ring; 121. Inflation tube; 122. Plug; 13. Support plate; 131. Sliding block; 14. Charge bag; 15. Explosive; 2. Lower support plate; 21. Lower screw hole; 22. Slide groove; 23. Lower sealing ring; 24. Screw barrel seat; 25. Support column; 3. Upper support plate; 31. Upper screw hole; 32. Upper sealing ring; 33. Through hole. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses a charging device for mine blasting. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 A charging device for mining blasting includes a charging component 1, a lower support plate 2, and an upper support plate 3. The charging component 1 includes an adjusting component 11, an airbag ring 12, a support plate 13, and a charging bag 14. The airbag ring 12 is sleeved on the outside of the adjusting component 11, and the lower support plate 2 is assembled at the bottom end of the adjusting component 11, while the upper support plate 3 is assembled at the top end of the adjusting component 11. Multiple sliding grooves 22 are evenly opened on the top horizontal surface of the lower support plate 2, and multiple support plates 13 are slidably installed in the multiple sliding grooves 22. The charging bag 14 is vertically fixed on the top surface of the multiple support plates 13, and the inner wall of the charging bag 14 is pasted on the outer wall of the airbag ring 12. The charging bag 14 is filled with gunpowder 15. When loading explosives into blast holes drilled in mines, the lower support plate 2 is assembled to the bottom of the adjusting component 11. The depth of the adjusting component 11 is adjusted according to the depth of the blast hole, and the lower support plate 2 is pushed into the bottom of the blast hole. Explosives 15 are then added to the explosive bag 14 of the explosive component 1. The upper support plate 3 is then assembled to the outer end of the adjusting component 11 to seal the outer end of the blast hole. Both the explosive bag 14 and the airbag ring 12 are made of polyvinyl chloride, which has good elasticity and facilitates later expansion to fit tightly against the blast hole. During blasting, this ensures the explosives adhere tightly to the inside of the blast hole. The airbag ring 12 is supplied with air. After the airbag ring 12 is inflated, it expands. The expanded airbag ring 12 presses against the bottom support plate 13 of the explosive bag 14 and slides laterally on the lower support plate 2, so that the explosive bag 14 is tightly attached to the inner wall of the blast hole. Later, the gunpowder in the explosive bag 14 is ignited for mine blasting. In use, the airbag ring 12 is inflated and expands to press against the explosive bag 14 and tightly attach it to the inner wall of the blast hole, ensuring that the supported explosive bag is completely attached to the blast hole. This avoids the problem of energy loss after blasting due to gaps, which would affect the effect of mine blasting and improve the effect of mine blasting.

[0033] Reference Figure 2 , Figure 3 and Figure 4 The adjusting component 11 includes two connecting columns 111, symmetrically arranged. Adjacent ends of the two connecting columns 111 are respectively fixed with a helical tube 112 and a screw rod 113, and the adjacent helical tubes 112 and screw rods 113 of the two connecting columns 111 are threadedly connected. During use, to facilitate later application to blasting needs at different depths, rotating one side of the connecting columns 111 of the adjusting component 11 causes the two helical tubes 112 and screw rods 113 to extend spirally, adapting to the need for extended support at different blasting depths. A stud 114 is fixed to the other end face of the two connecting columns 111. The stud 114 fixed to the other end of the two connecting columns 111 facilitates later assembly and connection of the lower support plate 2 and the upper support plate 3 at both ends of the adjusting component 11.

[0034] Reference Figure 3 , Figure 4 and Figure 5 A slider 131 is fixed on the bottom surface of the support plate 13, and the slider 131 is slidably assembled with the groove 22 on the top surface of the lower support plate 2. The slider 131 on the bottom surface of the support plate 13 is slidably assembled with the groove 22 on the top surface of the lower support plate 2. After the airbag ring 12 is inflated, the airbag ring 12 expands, and the expanded airbag ring 12 presses against the bottom support plate 13 of the explosive bag 14 and slides laterally on the lower support plate 2, so that the explosive bag 14 is tightly attached to the inner wall of the borehole.

[0035] Reference Figure 2 , Figure 3 and Figure 6 An inflation tube 121 is fixed to the top surface of the airbag ring 12 through the upper support plate 3, and the end of the inflation tube 121 is filled with a plug 122. During inflation, the plug on the inflation tube 121 on the airbag ring 12 is opened, and air is introduced through the inflation tube 121 on the airbag ring 12 to inflate the airbag ring 12. After inflation is completed, the plug 122 is used to seal the inflation tube 121 to prevent air leakage later.

[0036] Reference Figure 2 , Figure 3 and Figure 5 A lower screw hole 21 is provided through the middle of the lower support plate 2, and the lower screw hole 21 of the lower support plate 2 is threadedly assembled with the stud 114 on the bottom connecting column 111 of the adjusting component 11. A lower sealing ring 23 is fitted and fixed on the outer wall of the lower support plate 2. The lower screw hole 21 in the middle of the lower support plate 2 is threadedly assembled with the stud 114 at the bottom end of the adjusting component 11. At the same time, in order to prevent the charge 1 from being skewed inside the borehole, the lower sealing ring 23 fitted and fixed on the outer wall of the lower support plate 2 supports the lower support plate 2 in the borehole by compression deformation, which ensures the stability of the charge 1. A screw seat 24 is provided at the end of the lower support plate 2 away from the connecting column 111, and the screw seat 24 is threadedly assembled with the stud 114 on the connecting column 111. Multiple support columns 25 are vertically fixed at the end of the screw seat 24 away from the lower support plate 2. The screw base 24 is threaded onto the stud 114 of the connecting column 111, so that the lower support plate 2 is away from the end assembled on the connecting column 111. Then, the multiple supports 25 on the screw base 24 support the stability of the charge 1 in the borehole.

[0037] Reference Figure 2 , Figure 3 and Figure 6The upper support plate 3 has a through-hole 31 in the middle, and the through-hole 31 of the upper support plate 3 is threadedly assembled with the stud 114 on the top connecting column 111 of the adjusting component 11. An upper sealing ring 32 is fitted and fixed on the outer wall of the upper support plate 3, and multiple through holes 33 for inserting ignition devices are evenly opened on the upper support plate 3. In use, the upper screw hole 31 on the upper support plate 3 is threadedly assembled with the stud 114 on the top connecting column 111 of the adjusting component 11 to seal the outer port of the blast hole. The upper sealing ring 32 fixed on the outer wall of the upper support plate 3 ensures the sealing of the outer port of the blast hole. At the same time, the ignition device is inserted into the gunpowder 15 in the propellant bag 14 through the through hole 33 to ignite the gunpowder 15 in the propellant bag 14.

[0038] The implementation principle of a charging device for mine blasting according to an embodiment of this application is as follows: When loading explosives into blast holes opened in the mine, in order to facilitate the application of blasting needs for blast holes of different depths later, the two connecting columns 111 of the adjusting component 11 are rotated, and the two spiral tubes 112 and the screw 113 are driven to extend spirally to meet the extension support needs of blast holes of different depths. The lower support plate 2 is assembled at the bottom end of the adjusting component 11. The depth of the adjusting component 11 of the charging component 1 is adjusted according to the depth of the blast hole, and the lower support plate 2 is pushed into the bottom end of the blast hole. Explosives 15 are added to the charging bag 14 of the charging component 1. Then, the upper support plate 3 is assembled at the outer end of the adjusting component 11 to seal the outer end of the blast hole. The charging bag 14 and the airbag ring 12 are both made of polyvinyl chloride, which has good elasticity and is easy to expand later. During blasting, to ensure the gunpowder adheres tightly to the inner wall of the blast hole, the airbag ring 12 is supplied with gas. After inflation, the airbag ring 12 expands, pressing against the bottom support plate 13 of the explosive bag 14, causing it to slide laterally on the lower support plate 2, thus ensuring the explosive bag 14 adheres tightly to the inner wall of the blast hole. Later, the gunpowder in the explosive bag 14 is ignited for mine blasting. In use, the airbag ring 12 is inflated and expands to press against the explosive bag 14, ensuring it adheres tightly to the inner wall of the blast hole. During use, the upper screw hole 31 on the upper support plate 3 is threadedly assembled with the stud 114 on the top connecting column 111 of the adjusting component 11 to seal the outer port of the blast hole. The upper sealing ring 32 fixed to the outer wall of the upper support plate 3 ensures the sealing of the outer port of the blast hole. At the same time, the ignition device is inserted through the through hole 33 into the gunpowder 15 of the explosive bag 14 to ignite the gunpowder 15 in the explosive bag 14.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A charging device for mine blasting, characterized by comprising: The device includes a charging component (1), a lower support plate (2), and an upper support plate (3). The charging component (1) includes an adjusting component (11), an airbag ring (12), a support plate (13), and a charging bag (14). The airbag ring (12) is sleeved on the outside of the adjusting component (11), and the lower support plate (2) is assembled at the bottom end of the adjusting component (11), and the upper support plate (3) is assembled at the top end of the adjusting component (11). Multiple sliding grooves (22) are evenly opened on the top horizontal surface of the lower support plate (2), and multiple support plates (13) are slidably installed in the multiple sliding grooves (22). The charging bag (14) is vertically fixed on the top surface of the multiple support plates (13), and the inner wall of the charging bag (14) is pasted on the outer wall of the airbag ring (12). The charging bag (14) is filled with gunpowder (15).

2. The charging device for mine blasting according to claim 1, characterized in that: The adjusting component (11) includes a connecting column (111), two connecting columns (111) are symmetrically arranged, and the adjacent ends of the two connecting columns (111) are respectively fixed with a screw tube (112) and a screw rod (113), and the adjacent screw tube (112) and screw rod (113) of the two connecting columns (111) are threadedly assembled and connected.

3. A charging device for mine blasting according to claim 2, characterized in that: A stud (114) is fixed to the other end face of the two connecting columns (111).

4. A charging device for mine blasting according to claim 1, characterized in that: A slider (131) is fixed on the bottom surface of the support plate (13), and the slider (131) is slidably assembled with the groove (22) on the top surface of the lower support plate (2).

5. A charging device for mine blasting according to claim 1, characterized in that: An inflation tube (121) is fixed on the top surface of the airbag ring (12) through the upper support plate (3), and the end of the inflation tube (121) is filled with a plug (122).

6. A charging device for mine blasting according to claim 2, characterized in that: The lower support plate (2) has a through hole (21) in the middle, and the lower screw hole (21) of the lower support plate (2) is threadedly assembled with the stud (114) on the bottom connecting column (111) of the adjusting component (11), and a lower sealing ring (23) is fitted and fixed on the outer wall of the lower support plate (2).

7. A charging device for mine blasting according to claim 6, characterized in that: The lower support plate (2) is provided with a screw seat (24) at one end away from the connecting column (111), and the screw seat (24) is threaded onto the stud (114) of the connecting column (111), and multiple support columns (25) are vertically fixed at one end of the screw seat (24) away from the lower support plate (2).

8. A charging device for mine blasting according to claim 2, characterized in that: The upper support plate (3) has a through-hole (31) in the middle, and the upper screw hole (31) of the upper support plate (3) is threadedly assembled with the stud (114) on the top connecting column (111) of the adjusting component (11). An upper sealing ring (32) is fitted and fixed on the outer wall of the upper support plate (3), and multiple through holes (33) for inserting ignition devices are evenly opened on the upper support plate (3).

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