Mine blasting blind shot recognition device

Abstract

The application discloses a mine blasting blind charge recognition device and relates to the field of blasting, and aims at solving the problem that the existing blasting may cause the support and the internal sensing assembly in other charging space to fall into the lower end of the explosive hole, and the sensing assembly is damaged, and even the blind charge is difficult to identify. The blasting blind charge recognition unit comprises an externally embedded protective box body, an upper fixed plate body is fixed to the upper end of the externally embedded protective box body, and a middle fixed ring pipe is fixed to the inside of the upper fixed plate body. The blasting blind charge recognition unit further comprises a charging hole internal fixing assembly, the charging hole internal fixing assembly comprises an upper operation fixed disc, a driving threaded rod part is fixed to the lower end of the upper operation fixed disc, the driving threaded rod part is in threaded connection with the middle fixed ring pipe, an upper smooth rod part is integrally connected to the lower end of the driving threaded rod part, and a lower fixed linkage ring is fixed to the lower end of the outside of the upper smooth rod part.

Description

Technical Field

[0001] This invention relates to the field of blasting, specifically to a device for identifying misfires in mine blasting. Background Technology

[0002] Blasting engineering refers to a construction method that uses explosives to excavate earth and rock, and to demolish or destroy foundations, buildings, and structures.

[0003] According to the different blasting objects and blasting operation environments, blasting engineering can be divided into the following categories: (1) Rock and soil blasting, which refers to blasting operations aimed at breaking and throwing rock and soil, such as mining blasting, roadbed excavation blasting, tunnel (roadway) excavation blasting, etc.; (2) Demolition blasting, which refers to blasting operations aimed at demolishing ground and underground buildings and structures by taking measures to control harmful effects, such as blasting to demolish concrete foundations, tall structures such as chimneys and water towers, buildings such as buildings and factories, etc.; (3) Metal blasting, which refers to metal blasting. Breaking refers to blasting operations that break and cut metal; (4) Explosive processing, which refers to the processing method that uses the transient high temperature and high pressure of explosives to deform, cut, composite (weld) or change the phase structure of materials at high speed, including explosive forming, welding, composite, synthetic diamond, hardening and strengthening, sintering, eliminating welding residual stress, explosive cutting of metal, etc.; (5) Seismic exploration blasting, which uses the energy released by the explosion of explosives buried underground to generate seismic waves in the earth's crust to detect geological structures and mineral resources. A geophysical exploration method; (6) Oil and gas well blasting. After drilling, the accurate depth and thickness of the underground oil and gas layer are determined by logging. A steel casing is installed in the well, and cement is injected into the annular space between the casing and the well wall to completely seal the annular space and prevent the well wall from collapsing. Different oil and gas layers and water layers will not flow into each other. In order to allow the oil and gas in the formation to flow into the well, a channel is formed between the casing, cement sheath and formation. Perforation blasting is required; (7) High temperature blasting. High temperature blasting refers to the blasting of high temperature thermal solidification structures. In metal smelting operations, due to a certain The reason is that furnace nodules and condensates often form on the furnace wall or bottom. If they are not cleaned in time, they will greatly reduce the volume of the furnace and affect the normal production of smelting. High-temperature hot solidification structures are treated by blasting. (8) Underwater blasting: All blasting that places the blast source in the water area and interacts with the water medium is called underwater blasting, including near-water surface blasting, shallow water blasting, deep water blasting, underwater exposed blasting, underwater drilling blasting, underwater chamber blasting and water-blocking blasting, etc. (9) Other blasting: Other blasting includes agricultural and forestry blasting, blasting of stones in the human body, blasting of forest fire extinguishing, etc.

[0004] Mining operations mainly include drilling, blasting, loading, transportation, and waste disposal, with blasting being a crucial component. Deep-hole blasting is a widely used method in open-pit mines. It involves drilling deep holes to provide space for the explosives. The depth of the boreholes is typically 15-20 meters, with a diameter of 75-310 mm, commonly 200-250 mm. During blasting, due to external environmental factors and the properties of the explosives themselves, misfires (explosive bursts) may occur. If misfires are not cleared promptly, they can affect subsequent blasting operations. Furthermore, the uncertain location of misfires poses significant safety hazards for continued drilling or mining operations. Therefore, identifying misfires is a critical aspect of blasting operations in mining.

[0005] To identify misfires, a support frame can be installed in the explosive charge space, with a sensing component inside. The sensing component transmits signals in real time. When the explosive is functioning normally, the sensing component is damaged and unable to transmit signals. When a misfire occurs, the sensing component can still be located in that space and transmit signals, allowing personnel to clear the misfire. However, blasting may cause supports and internal sensing components in other explosive charge spaces to fall into the lower part of the explosive hole, damaging the sensing components and making it difficult to identify even misfires. Therefore, the identification device needs to be securely connected to the ground to prevent it from falling off. Summary of the Invention

[0006] The purpose of this invention is to provide a mine blasting misfire identification device to solve the problem mentioned in the background art that blasting may cause the supports and internal sensing components in other charge spaces to fall into the lower end of the explosive hole, damaging the sensing components and making it difficult to identify even if a misfire occurs.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a mine blasting misfire identification device, comprising a blasting explosive placement unit and a blasting misfire identification unit, both of which are located within the charging space drilled in the mine blasting, with the blasting explosive placement unit located at the lower end of the blasting misfire identification unit;

[0008] The blasting misfire identification unit includes an externally embedded protective housing, an upper fixing plate fixed to the upper end of the externally embedded protective housing, and an internal fixing ring tube fixed in the middle of the upper fixing plate.

[0009] The blasting misfire identification unit also includes a charging hole fixing component, which includes an upper operating fixing plate. The lower end of the upper operating fixing plate is fixed with a drive threaded rod, which is connected to the intermediate fixing ring by a pipe thread. The lower part of the drive threaded rod is integrally connected with an upper smooth rod. The lower end of the upper smooth rod is fixed with a lower fixing linkage ring. The lower end of the lower fixing linkage ring is rotatably connected to the lower smooth rod through a bearing. The lower end of the lower smooth rod is fixed with a lower lifting plate. The diameter of the lower lifting plate is the same as the inner diameter of the outer embedded protective box.

[0010] The lower fixed linkage ring is fixed with a first adjusting fixed seat in the cross direction outside. A first linkage rotation adjusting rod is rotatably connected to the first adjusting fixed seat through a shaft. The other end of the first linkage rotation adjusting rod is rotatably connected to a second linkage rotation adjusting rod through a shaft. The first linkage rotation adjusting rod and the second linkage rotation adjusting rod are folded into an acute angle along the rotation direction. The other end of the second linkage rotation adjusting rod is rotatably connected to an outer extension embedding rod through a shaft.

[0011] An outer annular lifting tube is fixed to the outside of the upper end of the lower lifting plate. A C-shaped fixing frame is fixed in the cross direction inside the outer annular lifting tube. A second rectangular through slot is opened at the connection position between the C-shaped fixing frame and the outer extension embedded rod. A first rectangular through slot is opened on the outer annular lifting tube at the position corresponding to the second rectangular through slot.

[0012] A rectangular through slot is provided on the upper part of the outer side of the external embedded protective box in a cross direction. The width of the rectangular through slot is the same as the width of the first rectangular through slot and the second rectangular through slot. The external extension embedded rod extends outward to the outside of the blasting misfire identification unit through the second rectangular through slot, the first rectangular through slot and the rectangular through slot.

[0013] Rotating the upper operating fixed plate drives the drive threaded rod to rotate. Due to the threaded connection between the drive threaded rod and the middle fixed ring tube, and the middle fixed ring tube being fixed to the upper fixed plate, the entire fixed assembly inside the loading hole moves downward. Because the drive threaded rod, the upper smooth rod, and the lower fixed linkage ring are fixed adjacent to each other, the lower fixed linkage ring is driven to rotate. Because one end of the outer extension embedding rod extends into the second rectangular through slot of the C-shaped fixed frame and is limited, under the rotation of the lower fixed linkage ring, the first linkage rotation adjustment rod and the second linkage rotation adjustment rod gradually rotate and open, pushing the outer extension embedding rod to move straight outward. The outer extension embedding rod is embedded into the soil outside the loading space through the first rectangular through slot and the side rectangular through slot.

[0014] Preferably, a second adjusting fixing seat is fixed on the outer side of the lower end of the lower lifting plate. The second adjusting fixing seat is rotatably connected to a vibration damping unit via a shaft. The other end of the vibration damping unit is rotatably connected to a third adjusting fixing seat via a shaft. The inner sides of multiple third adjusting fixing seats are jointly fixed to the lower open box body.

[0015] Preferably, a first fixing block is fixed on both sides of the upper end of the lower open box body. A telescopic outer tube is fixed on the inner side of the first fixing block. A telescopic inner intermediate rod is telescopically connected inside the telescopic outer tube. An inner moving block is fixed on the inner side of the telescopic inner intermediate rod. A pressure spring is provided between the inner moving block and the first fixing block along the outside of the telescopic outer tube and the telescopic inner intermediate rod. A conductive spring is provided on the inner side of the inner moving block. The two conductive springs are electrically connected.

[0016] Preferably, a second fixing block is fixed on both sides of the lower end of the lower open box body. A positioning infrared transmitter is installed on the inner side of one side of the second fixing block, and a positioning infrared receiver is installed on the inner side of the other side of the second fixing block. The positioning infrared transmitter and the positioning infrared receiver are positioned in left-right correspondence, and the positioning infrared receiver receives the infrared signal sent by the positioning infrared transmitter.

[0017] Preferably, a small power supply, a communication module, a data acquisition module, a positioning module, and a control module are also installed inside the lower open box.

[0018] The small power supply mainly powers the communication module, data acquisition module, positioning module, and control module;

[0019] The data acquisition module collects the contact signal of the conductive spring and the infrared signal received by the positioning infrared receiver from the positioning infrared transmitter, and sends it to the communication module.

[0020] The communication module mainly transmits the contact signals of the conductive spring piece collected by the data acquisition module and the infrared signals received by the positioning infrared receiver from the positioning infrared transmitter to the backend server.

[0021] The positioning module is mainly used to locate each blasting hole;

[0022] The control module plays a central control role.

[0023] Preferably, the lower outer end of the externally embedded protective housing is integrally connected with a side fixing ring, and the lower outer end of the externally embedded protective housing is wrapped with a lower protective film. A push retaining ring is provided on the lower outer end of the side fixing ring along the lower outer end of the lower protective film.

[0024] Preferably, the lower end of the outer embedded protective box is provided with an embedded annular groove, which extends outward to the lower end face of the outer embedded protective box. The explosive placement unit includes an outer protective cylinder, and an upper embedded connecting ring tube is fixed at the upper end of the outer protective cylinder. The upper embedded connecting ring tube is embedded inside the embedded annular groove.

[0025] Preferably, the outer surface of the outer mounting protective cylinder has a rectangular through-hole groove in the middle annular array, the rectangular through-hole groove penetrates the outer surface of the outer mounting protective cylinder, and the lower end of the inner surface of the outer mounting protective cylinder is provided with an internal threaded connection groove.

[0026] Preferably, the explosive placement unit further includes a lower explosive placement assembly, which includes an explosive placement cylinder. The inner end of the upper end of the explosive placement cylinder is integrally connected with an externally threaded fixing ring tube. The externally threaded fixing ring tube is connected to the outer protective cylinder through a threaded connection with the internally threaded connecting groove. An explosive placement groove is formed inside the explosive placement cylinder.

[0027] Preferably, the lower end of the upper fixed plate along the outer edge of the external embedded protective box is integrally connected to a transition slope.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. In this invention, rotating the upper operating fixed plate drives the drive threaded rod to rotate. Due to the threaded connection between the drive threaded rod and the intermediate fixed ring tube, and the fixing of the intermediate fixed ring tube to the upper fixed plate, the entire fixing assembly inside the loading hole moves downward, and the lower lifting plate, the outer annular lifting tube, and the C-shaped fixing frame move vertically downward. Because the drive threaded rod, the upper smooth rod, and the lower fixed linkage ring are fixed adjacent to each other, the lower fixed linkage ring will be driven to rotate. Because one end of the outwardly extending embedded rod extends into the second rectangular through groove of the C-shaped fixing frame, it plays a limiting role. Under the rotation of the lower fixed linkage ring, the first linkage rotation adjustment rod and the second linkage rotation... The adjusting rod gradually rotates and opens, pushing the outer extension embedding rod to move straight outward. The outer extension embedding rod is embedded into the soil outside the charging space through the first rectangular through slot and the side rectangular through slot. This embedding fixes the blasting misfire identification unit to the ground. Furthermore, the upper embedded connecting ring tube on the explosive placement unit enters the embedded annular slot of the outer embedded protective box on the blasting misfire identification unit for connection. This prevents the blasting misfire identification unit from falling into the lower space, solving the problem that during blasting, supports and internal sensing components in other charging spaces may fall into the lower part of the explosive hole, damaging the sensing components and making identification difficult even in the event of a misfire. Compared to the solution of directly setting a smooth rod to drive the lower fixed linkage ring to rotate, thus causing the outer extension embedding rod to move straight outward, even if the external soil exerts pressure on the outer extension embedding rod, the threaded connection between the driving threaded rod and the middle fixed ring tube prevents the fixed components inside the charging hole from retracting due to the reaction force of the soil, increasing connection stability.

[0030] 2. In this invention, the lower end of the externally embedded protective box is wrapped with a lower protective film by a pushing ring. When it enters the loading space downwards, the internal space of the lower open box will not be contaminated by dirt and impurities. The outer annular lifting tube moves inside the externally embedded protective box and always blocks the side rectangular through slot until the first rectangular through slot on the outer annular lifting tube connects with the side rectangular through slot. At this point, the side rectangular through slot exposes a slot space of the same size as the first rectangular through slot. When the slot space connects the inside and outside, the externally extended embedded rod has entered the side rectangular through slot and extends outwards. The presence of the side rectangular through slot will not allow dirt or other substances to enter the internal space of the externally embedded protective box, thus reducing the impact on the internal structure.

[0031] 3. This invention employs two sets of structures: conductive spring contacts corresponding to the positioning infrared transmitter and receiver, for identifying the blasting state. When the blasting is complete, the energy expansion of the explosive in the placement slot directly impacts the interior space of the lower open box. The two conductive spring contacts then separate, preventing the positioning infrared transmitter from sending infrared signals and the receiver from receiving them. When the explosive has not detonated, the interior of the lower open box is not directly impacted. The backend server continuously receives information about the contact of the two conductive spring contacts and the relative positions of the positioning infrared transmitter and receiver. The positioning module locates the position of the explosive charge space, thus identifying misfires. The two sets of structures work together; even when one set is affected by vibration, the data from the other set can still be used for identification. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the mine blasting blind blast identification device of the present invention;

[0033] Figure 2 This is a front view of the mine blasting misfire identification device of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of the blasting misfire identification unit of the mine blasting misfire identification device of the present invention;

[0035] Figure 4 This is a schematic diagram of the explosive placement unit of the mine blasting misfire identification device of the present invention;

[0036] Figure 5 This is a cross-sectional view of the outer embedded protective box of the blasting misfire identification unit of the mine blasting misfire identification device of the present invention;

[0037] Figure 6 This is a cross-sectional view of the explosive placement unit of the mine blasting misfire identification device of the present invention;

[0038] Figure 7 This is a cross-sectional view showing the connection relationship between the external embedded protective box and the explosive placement unit of the mine blasting blind blasting identification device of the present invention;

[0039] Figure 8 This is a schematic diagram of the structure of the fixing component inside the charging hole of the mine blasting misfire identification device of the present invention;

[0040] Figure 9 This is a top view of the fixing component inside the charging hole of the mine blasting misfire identification device of the present invention;

[0041] Figure 10 This is a cross-sectional view of the blasting misfire identification unit of the mine blasting misfire identification device of the present invention;

[0042] Figure 11 This is an enlarged view of section A of the mine blasting blind blast identification device of the present invention;

[0043] Figure 12 This is a schematic diagram showing the connection relationship between the external embedded protective housing, the side rectangular through slot, the outer annular lifting pipe, the first rectangular through slot, the C-shaped fixing frame, the second rectangular through slot, and the external extension embedded rod of the mine blasting blind blasting identification device of the present invention.

[0044] In the diagram: 1. Explosive placement unit; 2. External protective cylinder; 3. Rectangular through-hole slot; 4. Upper embedded connecting ring tube; 5. Internal threaded connecting groove; 6. Lower explosive placement assembly; 7. Explosive placement cylinder; 8. External threaded fixing ring tube; 9. Explosive placement slot; 10. Explosive misfire identification unit; 11. External embedded protective box; 12. Side rectangular through-hole; 13. Transition ramp; 14. Upper fixing plate; 15. Side fixing ring; 16. Embedded annular slot; 17. Lower protective film; 18. Push retaining ring; 19. Middle fixing ring tube; 20. Fixed assembly inside the charging hole; 21. Upper operating fixing plate; 22. Drive threaded rod; 23. Upper smooth rod; 24. Lower... 25. Fixed linkage ring; 26. First adjusting fixed seat; 27. First linkage rotation adjusting rod; 28. Second linkage rotation adjusting rod; 29. ​​Outer extension embedded rod; 30. Lower smooth rod part; 31. Lower lifting plate; 32. Outer annular lifting tube; 33. First rectangular through slot; 34. C-shaped fixed frame; 35. Second rectangular through slot; 36. Second adjusting fixed seat; 37. Vibration damping unit; 38. Third adjusting fixed seat; 39. Lower open box body; 40. First fixing block; 41. Telescopic outer sleeve; 42. Telescopic inner middle rod; 43. Pressure spring; 44. Inner actuating block; 45. Conductive spring; 46. Second fixing block; 47. Positioning infrared transmitter; 48. Positioning infrared receiver. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0046] Please see Figure 1-12 An embodiment of the present invention provides a mine blasting misfire identification device, including a blasting explosive placement unit 1 and a blasting misfire identification unit 10. Both the blasting explosive placement unit 1 and the blasting misfire identification unit 10 are located in the charging space drilled in the mine blasting, and the blasting explosive placement unit 1 is located at the lower end of the blasting misfire identification unit 10.

[0047] The explosive placement unit 1 includes an outer protective cylinder 2. The outer surface of the outer protective cylinder 2 has a rectangular through-hole slot 3 arranged in a central annular array. The rectangular through-hole slot 3 penetrates the outer surface of the outer protective cylinder 2. The lower end of the inner surface of the outer protective cylinder 2 is provided with an internal threaded connection slot 5. The explosive placement unit 1 also includes a lower explosive placement assembly 6. The lower explosive placement assembly 6 includes an explosive placement cylinder 7. The inner end of the upper end of the explosive placement cylinder 7 is integrally connected with an external threaded fixing ring tube 8. The external threaded fixing ring tube 8 is connected to the outer protective cylinder 2 through a threaded connection with the internal threaded connection slot 5. An explosive placement slot 9 is formed inside the explosive placement cylinder 7.

[0048] The height of the explosive placement unit 1 in the figure is relatively small. In actual installation, it is matched to the height of the drilled charging space. The depth of the blast hole is generally 15-20m, and the diameter is 75-310mm. The commonly used diameter is 200-250mm.

[0049] The blasting misfire identification unit 10 includes an externally embedded protective housing 11, an upper fixing plate 14 fixed at the upper end of the externally embedded protective housing 11, a transition ramp 13 integrally connected to the lower end of the upper fixing plate 14 on the outside of the externally embedded protective housing 11, and an intermediate fixing ring tube 19 fixed in the middle inside the upper fixing plate 14.

[0050] The blasting misfire identification unit 10 also includes a charging hole fixing component 20. The charging hole fixing component 20 includes an upper operating fixing plate 21. The lower end of the upper operating fixing plate 21 is fixed with a drive threaded rod 22. The drive threaded rod 22 is threadedly connected to the middle fixing ring tube 19. The lower part of the drive threaded rod 22 is integrally connected with an upper smooth rod 23. The lower end of the upper smooth rod 23 is fixed with a lower fixing linkage ring 24. The lower end of the lower fixing linkage ring 24 is rotatably connected to a lower smooth rod 29 through a bearing. The lower end of the lower smooth rod 29 is fixed with a lower lifting plate 30. The diameter of the lower lifting plate 30 is the same as the inner diameter of the outer embedded protective box 11.

[0051] A first adjusting base 25 is fixed to the outside of the lower fixed linkage ring 24 in a cross direction. A first linkage rotation adjusting rod 26 is rotatably connected to the first adjusting base 25 via a shaft. The other end of the first linkage rotation adjusting rod 26 is rotatably connected to a second linkage rotation adjusting rod 27 via a shaft. The first linkage rotation adjusting rod 26 and the second linkage rotation adjusting rod 27 are folded into an acute angle along the rotation direction, forming a semi-rhomboid structure. The other end of the second linkage rotation adjusting rod 27 is rotatably connected to an outer extension embedding rod 28 via a shaft. Under the limiting action, the outer extension embedding rod 28 can only move straight inward or outward.

[0052] An outer annular lifting tube 31 is fixed to the outside of the upper end of the lower lifting plate 30. A C-shaped fixing frame 33 is fixed in the cross direction inside the outer annular lifting tube 31. A second rectangular through slot 34 is opened at the connection position between the C-shaped fixing frame 33 and the outer extension embedded rod 28. The initial position of the outer extension embedded rod 28 is outward through the second rectangular through slot 34. A first rectangular through slot 32 is opened on the outer annular lifting tube 31 at the position corresponding to the second rectangular through slot 34. The dimensions of the first rectangular through slot 32 and the second rectangular through slot 34 are the same.

[0053] A rectangular through slot 12 is provided in the cross direction at the upper part of the outer side surface of the external embedded protective box 11. The width of the rectangular through slot 12 is the same as the width of the first rectangular through slot 32 and the second rectangular through slot 34. The externally extending embedded rod 28 extends outward to the outside of the blasting blind cannon identification unit 10 through the second rectangular through slot 34, the first rectangular through slot 32 and the rectangular through slot 12.

[0054] Rotating the upper operating fixed plate 21 drives the drive threaded rod 22 to rotate, and the fixed assembly 20 inside the charging hole moves downward as a whole. Because one end of the outer extension embedded rod 28 extends into the second rectangular through groove 34 of the C-shaped fixed frame 33, it plays a limiting role. Under the rotation of the lower fixed linkage ring 24, the first linkage rotation adjustment rod 26 and the second linkage rotation adjustment rod 27 gradually rotate and open, pushing the outer extension embedded rod 28 to move straight outward. The outer extension embedded rod 28 is embedded into the soil outside the charging space through the first rectangular through groove 32 and the side rectangular through groove 12, and the embedding makes the blasting misfire identification unit 10 fixed to the ground.

[0055] Furthermore, a second adjusting fixing seat 35 is fixed on the outer side of the lower end of the lower lifting plate 30. The second adjusting fixing seat 35 is rotatably connected to a vibration damping unit 36 ​​via a shaft. The other end of the vibration damping unit 36 ​​is rotatably connected to a third adjusting fixing seat 37 via a shaft. The inner sides of multiple third adjusting fixing seats 37 are jointly fixed to the lower open box 38, and the impact can directly impact the internal structure of the lower open box 38. The upper part of the lower open box 38 is fixed with two first fixing blocks 39 on both sides. The inner side of the first fixing block 39 is fixed with a telescopic outer sleeve 40. The telescopic inner middle rod 41 is telescopically connected inside the telescopic outer sleeve 40. The inner side of the telescopic inner middle rod 41 is fixed with an inner actuating block 43. A pressure spring 42 is provided between the inner actuating block 43 and the first fixing block 39 along the outside of the telescopic outer sleeve 40 and the telescopic inner middle rod 41. The inner side of the inner actuating block 43 is provided with a conductive spring 44. When the two conductive springs 44 are in contact, they are electrically connected. The lower part of the lower open box 38 is fixed with two second fixing blocks 45 on both sides. A positioning infrared transmitter 46 is installed on the inner side of one second fixing block 45, and a positioning infrared receiver 47 is installed on the inner side of the other second fixing block 45. The positioning infrared transmitter 46 and the positioning infrared receiver 47 are positioned symmetrically. The positioning infrared receiver 47 receives the infrared signal sent by the positioning infrared transmitter 46.

[0056] The lower open-top enclosure 38 also houses a small power supply, communication module, data acquisition module, positioning module, and control module.

[0057] The small power supply mainly powers the communication module, data acquisition module, positioning module, and control module;

[0058] The data acquisition module acquires the contact signal of the conductive spring 44 and the infrared signal received by the positioning infrared receiver 47 from the positioning infrared transmitter 46, and sends it to the communication module.

[0059] The communication module mainly transmits the contact signal of the conductive spring piece 44 collected by the data acquisition module and the infrared signal received by the positioning infrared receiver 47 from the positioning infrared transmitter 46 to the back-end server. The back-end server can determine whether it is a misfire based on this information. If it is a misfire, a special misfire removal device is used to remove it.

[0060] The positioning module is mainly used to locate each blasting hole;

[0061] The control module plays a central control role.

[0062] During the blasting, the energy expansion of the explosive in the explosive placement slot 9 will directly impact the internal space of the open box 38. The two conductive springs 44 will no longer be in contact, the positioning infrared transmitter 46 will not be able to send infrared signals, and the positioning infrared receiver 47 will not be able to receive infrared signals normally, thus determining that the explosive in the charging space has detonated.

[0063] In the absence of explosives, the backend server continuously receives information about the two conductive shrapnel pieces 44 being in contact with each other and information about the relative positions of the positioning infrared transmitter 46 and the positioning infrared receiver 47, and uses the positioning module to locate the spatial position of the explosive charge.

[0064] Furthermore, a side fixing ring 15 is integrally connected to the lower outer end of the externally embedded protective box 11. A lower protective film 17 is wrapped around the lower outer end of the externally embedded protective box 11. A push retaining ring 18 is provided along the lower end of the side fixing ring 15 on the outside of the lower protective film 17. An embedded annular groove 16 is opened at the lower inner end of the externally embedded protective box 11, extending outward to the lower end face of the externally embedded protective box 11. An upper embedded connecting ring tube 4 is fixed at the upper end of the externally mounted protective cylinder 2, and the upper embedded connecting ring tube 4 is embedded inside the embedded annular groove 16. When entering the loading space downwards, the presence of the lower protective film 17 will prevent the soil and impurities inside from contaminating the internal space of the lower open box 38. Moreover, the outer annular lifting pipe 31 moves within the externally embedded protective box 11, and the outer annular lifting pipe 31 always blocks the side rectangular through slot 12, reducing the impact of external impurities or soil on the internal structural movement. The connecting ring tube 4 is embedded in the upper part of the explosive placement unit 1 and enters the embedded annular slot 16 of the outer embedded protective box 11 of the blasting misfire identification unit 10, and the lower protective film 17 is damaged.

[0065] Working principle: First, a deep borehole is drilled using drilling equipment to serve as the loading space for mining explosives; then, the explosives are placed in the explosive placement slot 9 of the lower explosive placement assembly 6. The explosive placement unit 1 is assembled by connecting the internal threaded groove 5 and the external threaded fixing ring tube 8 on the lower explosive placement assembly 6, and then the explosive placement unit 1 is placed in the loading space.

[0066] Then, the blasting misfire identification unit 10 is placed in the charging space; the connecting ring tube 4 is embedded in the upper part of the blasting explosive placement unit 1 and enters the embedded annular slot 16 of the outer embedded protective box 11 of the blasting misfire identification unit 10. The lower protective film 17 is damaged, and the transition slope 13 makes the blasting misfire identification unit 10 firmly stuck in the upper part of the charging space. Then, by rotating the upper operating fixed plate 21, the drive threaded rod 22 is driven to rotate. Due to the threaded connection between the drive threaded rod 22 and the middle fixed ring tube 19, and the middle fixed ring tube 19 is fixed to the upper fixed plate 14, the fixed assembly 20 inside the loading hole moves downward as a whole. The lower lifting plate 30, the outer annular lifting tube 31 and the C-shaped fixed frame 33 move vertically downward. Since the outer annular lifting tube 31 moves inside the outer embedded protective box 11, the outer annular lifting tube 31 always blocks the side rectangular through slot 12 until the first rectangular through slot 32 on the outer annular lifting tube 31 connects with the side rectangular through slot 12. At this point, the side rectangular through slot 12 exposes a slot space with the same size as the first rectangular through slot 32.

[0067] Since the drive threaded rod 22, the upper smooth rod 23 and the lower fixed linkage ring 24 are fixed together, the lower fixed linkage ring 24 will be driven to rotate. Since one end of the outer extension embedded rod 28 extends into the second rectangular through groove 34 of the C-shaped fixed frame 33, it plays a limiting role. As the lower fixed linkage ring 24 rotates, the first linkage rotation adjustment rod 26 and the second linkage rotation adjustment rod 27 gradually rotate and open, pushing the outer extension embedded rod 28 to move straight outward. The outer extension embedded rod 28 is embedded into the soil outside the charge space through the first rectangular through groove 32 and the side rectangular through groove 12, and the embedding makes the blasting misfire identification unit 10 fixed to the ground.

[0068] Before the blast, due to the presence of the pressure spring 42, the two conductive spring pieces 44 are in contact with each other, and data is collected by the data acquisition module and then sent through the communication module. The background server continuously receives information about the contact between the two conductive spring pieces 44. The positioning infrared transmitter 46 sends infrared signals and is received by the positioning infrared receiver 47, and data is collected by the data acquisition module and then sent through the communication module. The background server continuously receives information about the relative positions of the positioning infrared transmitter 46 and the positioning infrared receiver 47.

[0069] During blasting, the energy expansion of the explosive in the explosive placement slot 9 directly impacts the internal space of the lower open box 38. The two conductive springs 44 no longer adhere, the positioning infrared transmitter 46 cannot send infrared signals, and the positioning infrared receiver 47 cannot function properly to receive infrared signals, thus determining that the explosive in the charging space has detonated. If the explosive in the charging space has not detonated, the vibration damping unit 36 ​​stabilizes the lower open box 38 through damping, reducing the impact of external vibration on the components inside the lower open box 38. Because the interior of the lower open box 38 is not directly impacted, the background server continuously receives information about the adhesion of the two conductive springs 44 and information about the relative positions of the positioning infrared transmitter 46 and the positioning infrared receiver 47. The positioning module locates the position of the charging space, thus identifying misfires.

[0070] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mine blasting misfire identification device, comprising a blasting explosive placement unit (1) and a blasting misfire identification unit (10), wherein both the blasting explosive placement unit (1) and the blasting misfire identification unit (10) are located within the charging space drilled during mine blasting, and the blasting explosive placement unit (1) is located at the lower end of the blasting misfire identification unit (10); characterized in that: The blasting blind shot identification unit (10) includes an external embedded protective box (11), an upper fixed plate (14) is fixed at the upper end of the external embedded protective box (11), and an intermediate fixed ring tube (19) is fixed in the middle inside the upper fixed plate (14). The blasting blind blasting identification unit (10) also includes a charging hole fixing component (20), which includes an upper operating fixing plate (21). The lower end of the upper operating fixing plate (21) is fixed with a drive threaded rod (22), which is threadedly connected to the middle fixing ring tube (19). The lower end of the drive threaded rod (22) is integrally connected with an upper smooth rod (23). The lower end of the upper smooth rod (23) is fixed with a lower fixing linkage ring (24). The lower end of the lower fixing linkage ring (24) is rotatably connected to a lower smooth rod (29) through a bearing. The lower end of the lower smooth rod (29) is fixed with a lower lifting plate (30). The diameter of the lower lifting plate (30) is the same as the inner diameter of the outer embedded protective box (11). The lower fixed linkage ring (24) is fixed with a first adjusting fixing seat (25) in the cross direction outside. The first adjusting fixing seat (25) is rotatably connected to a first linkage rotation adjusting rod (26) through a shaft. The other end of the first linkage rotation adjusting rod (26) is rotatably connected to a second linkage rotation adjusting rod (27) through a shaft. The first linkage rotation adjusting rod (26) and the second linkage rotation adjusting rod (27) are folded into an acute angle along the rotation direction. The other end of the second linkage rotation adjusting rod (27) is rotatably connected to an outer extension embedding rod (28) through a shaft. An outer annular lifting tube (31) is fixed to the outside of the upper end of the lower lifting plate (30). A C-shaped fixing frame (33) is fixed in the cross direction inside the outer annular lifting tube (31). A second rectangular through groove (34) is opened at the connection position between the C-shaped fixing frame (33) and the outer extension embedded rod (28). A first rectangular through groove (32) is opened on the outer annular lifting tube (31) at the position corresponding to the second rectangular through groove (34). The outer embedded protective box (11) has a cross-shaped through groove (12) on the upper side surface. The width of the side rectangular through groove (12) is the same as the width of the first rectangular through groove (32) and the second rectangular through groove (34). The outer extension embedded rod (28) extends outward to the outside of the blasting blind cannon identification unit (10) through the second rectangular through groove (34), the first rectangular through groove (32) and the side rectangular through groove (12). Rotating the upper operating fixed plate (21) drives the drive threaded rod (22) to rotate. Due to the threaded connection between the drive threaded rod (22) and the middle fixed ring tube (19), and the middle fixed ring tube (19) and the upper fixed plate (14) are fixed, the fixed assembly (20) inside the loading hole moves downward as a whole. Because the drive threaded rod (22), the upper smooth rod (23) and the lower fixed linkage ring (24) are fixed adjacent to each other, the lower fixed linkage ring (24) is driven to rotate. Because one end of the outer extension embedded rod (28) extends into the second rectangular through groove (34) of the C-shaped fixed frame (33) and is limited, under the rotation of the lower fixed linkage ring (24), the first linkage rotation adjustment rod (26) and the second linkage rotation adjustment rod (27) gradually rotate and open, pushing the outer extension embedded rod (28) to move straight outward. The outer extension embedded rod (28) is embedded in the soil outside the loading space through the first rectangular through groove (32) and the side rectangular through groove (12).

2. The mine blasting misfire identification device according to claim 1, characterized in that: The lower lifting plate (30) has a second adjusting fixing seat (35) fixed on the outer side of its lower end. The second adjusting fixing seat (35) is rotatably connected to a vibration damping unit (36) via a shaft. The other end of the vibration damping unit (36) is rotatably connected to a third adjusting fixing seat (37) via a shaft. The inner sides of multiple third adjusting fixing seats (37) are jointly fixed to the lower open box body (38).

3. The mine blasting misfire identification device according to claim 2, characterized in that: The upper part of the lower open box (38) is fixed with two first fixing blocks (39) on both sides. The inner side of the first fixing block (39) is fixed with a telescopic outer tube (40). The telescopic outer tube (40) is telescopically connected with a telescopic inner middle rod (41). The inner side of the telescopic inner middle rod (41) is fixed with an inner action block (43). A pressure spring (42) is provided between the inner action block (43) and the first fixing block (39) along the outside of the telescopic outer tube (40) and the telescopic inner middle rod (41). The inner side of the inner action block (43) is provided with a conductive spring (44). The two conductive springs (44) are electrically connected.

4. The mine blasting misfire identification device according to claim 3, characterized in that: The lower end of the lower open box (38) is fixed with two second fixing blocks (45) on both sides. A positioning infrared transmitter (46) is installed on the inner side of one side of the second fixing block (45), and a positioning infrared receiver (47) is installed on the inner side of the other side of the second fixing block (45). The positioning infrared transmitter (46) and the positioning infrared receiver (47) are positioned in left and right correspondences. The positioning infrared receiver (47) receives the infrared signal sent by the positioning infrared transmitter (46).

5. The mine blasting misfire identification device according to claim 4, characterized in that: The lower open box (38) is also equipped with a small power supply, communication module, data acquisition module, positioning module and control module; The small power supply provides power to the communication module, data acquisition module, positioning module, and control module; The data acquisition module acquires the contact signal of the conductive spring (44) and the infrared signal received by the positioning infrared receiver (47) from the positioning infrared transmitter (46), and sends it to the communication module. The communication module transmits the contact signal of the conductive spring (44) collected by the data acquisition module and the infrared signal received by the positioning infrared receiver (47) from the positioning infrared transmitter (46) to the background server. The positioning module is used to locate each blasting hole; The control module plays a central control role.

6. The mine blasting misfire identification device according to claim 1, characterized in that: The lower end of the external embedded protective housing (11) is integrally connected with a side fixing ring (15), and the lower end of the external embedded protective housing (11) is wrapped with a lower protective film (17). A push retaining ring (18) is provided on the lower end of the side fixing ring (15) outside the lower protective film (17).

7. The mine blasting misfire identification device according to claim 1, characterized in that: The lower end of the inner recess of the external embedded protective box (11) is provided with an embedded annular slot (16), which extends outward to the lower end face of the external embedded protective box (11). The explosive placement unit (1) includes an externally mounted protective cylinder (2), and an upper embedded connecting ring pipe (4) is fixed at the upper end of the externally mounted protective cylinder (2). The upper embedded connecting ring pipe (4) is embedded inside the embedded annular slot (16).

8. The mine blasting misfire identification device according to claim 7, characterized in that: The outer surface of the outer mounting protective cylinder (2) has a rectangular through-hole groove (3) in the middle annular array. The rectangular through-hole groove (3) penetrates the outer surface of the outer mounting protective cylinder (2). The lower end of the inner surface of the outer mounting protective cylinder (2) is provided with an internal threaded connection groove (5).

9. The mine blasting misfire identification device according to claim 8, characterized in that: The explosive placement unit (1) further includes a lower explosive placement assembly (6), which includes an explosive placement cylinder (7). An external threaded fixing ring (8) is integrally connected to the inner end of the upper end of the explosive placement cylinder (7). The external threaded fixing ring (8) is connected to the outer protective cylinder (2) through a threaded connection with the internal threaded connecting groove (5). An explosive placement groove (9) is formed inside the explosive placement cylinder (7).

10. The mine blasting misfire identification device according to claim 1, characterized in that: The external embedded protective box (11) is integrally connected to the lower end of the upper fixed plate (14) with a transition ramp (13).

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