Charging device for coal mine deep hole blasting

Abstract

The utility model relates to the technical field of coal mine deep hole blasting, discloses a charging device for coal mine deep hole blasting, and solves the problem that the charging device is not safe enough in the transportation and filling process. By means of the damping springs, the foam plate, the refrigeration plate, the draught fan, the temperature sensor and the pressure detector, a worker can conveniently place the explosive storage barrel storing liquid explosives in the placing frame by opening the movable door, and due to the fact that the damping springs and the foam plate are arranged in the placing frame, the explosives are prevented from being impacted, and the explosive charging safety is improved; a refrigeration plate and a fan are mounted in the cavity A, so that cold air enters the explosive storage barrel through a vent groove, an electric push rod drives an adjusting plate to move up and down, the cold air inlet amount is controlled, meanwhile, the internal environment of the explosive storage barrel is monitored in real time in combination with a temperature sensor and a pressure detector in the cavity B, and the stability of the explosive is prevented from being affected; once an abnormal condition is detected, the audible and visual alarm gives an alarm in time, and operation safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine deep hole blasting, in particular to a charging device for coal mine deep hole blasting. Background Art

[0002] With the in-depth development of coal resources, deep-hole blasting technology in coal mines is becoming increasingly important as a key means of improving mining efficiency. However, traditional solid explosives face a series of challenges in deep-hole blasting operations, especially when blasting complex coal and rock structures.

[0003] Although solid explosives can release huge energy at the moment of explosion, in actual applications, the effective transmission range of their blasting energy is limited, resulting in insufficient coal and rock crushing, that is, insufficient "after-effect" of rock breaking. Therefore, a liquid explosive deep-hole explosive fracturing technology is proposed. Based on the superior fluidity and small critical diameter detonation characteristics of liquid explosives, this liquid explosive is based on the formula of water-gel explosives permitted for third-level coal mines. By removing the gelling agent and cross-linking agent in the explosive components and changing the proportions of components such as methylamine nitrate, ammonium nitrate, and sodium nitrate, it has a good flow physical form.

[0004] However, during the transportation, storage and loading process, heat accumulation will occur due to factors such as shaking and friction. When the heat accumulation reaches the heat resistance limit of the explosives, it may cause explosion hazards, thus failing to meet the dual needs of modern coal mining for safe production and efficient operations. Utility Model Content

[0005] The purpose of the utility model is to provide a charging device for deep hole blasting in coal mines. The device is used to work, thereby solving the problem that the existing charging device is not safe during transportation and filling.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a charging device for deep-hole blasting in coal mines, comprising a drill rig, a drill rod disposed on one side of the drill rig, and a charging sleeve disposed at one end of the drill rod, wherein the outer surfaces of the drill rod and the charging sleeve are both located inside the deep hole in the coal mine, and a protective assembly for increasing the safety of the charging is disposed on one side of the drill rig;

[0007] The protective component includes a placement frame arranged on one side of the drilling rig, and a medicine storage barrel placed inside the placement frame, a shock-absorbing spring is provided on the inner wall of the placement frame, a foam plate is provided on one end of the shock-absorbing spring, the outer surface of the medicine storage barrel contacts one side of the foam plate, a movable door is hinged on one side of the placement frame, a partition is provided inside the medicine storage barrel, the partition divides the medicine storage barrel into cavity A and cavity B, the upper surfaces of cavity A and cavity B are provided with cover A and cover B, a fan is provided at the bottom of cover A, a cooling plate is provided on the inner wall of cavity A, a ventilation groove is provided on the upper surface of the partition, an extension plate is provided on one side of the partition, and the extension plate is located inside cavity A, an electric push rod is provided at the bottom of the extension plate, an adjustment plate is fixedly installed on the telescopic end of the electric push rod, a temperature sensor and a pressure detector are provided inside cavity B, a control panel is provided on the upper surface of the cover B, an audible and visual alarm is built in the control panel, and the temperature sensor, pressure detector, fan and cooling plate are all connected to the control panel signal.

[0008] Furthermore, the inner wall of the medicine storage barrel is provided with spiral blades.

[0009] Furthermore, a liquid outlet cylinder is provided on the outer surface of the medicine storage barrel, and a valve is provided on the outer surface of the liquid outlet cylinder, and the valve is connected to the control panel signal.

[0010] Furthermore, a liquid explosive pump is provided on the upper surface of the drilling rig, one end of the liquid explosive pump is connected to the interior of the liquid discharge tube, and one end of the liquid explosive pump is provided with a connecting pipe, one end of the connecting pipe is connected to one end of the charging sleeve.

[0011] Furthermore, the inner walls of the connecting tube and the charge sleeve are both provided with an antistatic coating, which is a component made of epoxy resin reinforced with conductive carbon black.

[0012] Furthermore, a sealing ring is provided at the connection between the connecting pipe and the charge sleeve.

[0013] Furthermore, the outer surface of the medicine storage barrel is provided with a heat-insulating layer, which is a component made of polyurethane foam.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model proposes a charging device for deep hole blasting in coal mines, which is in the prior art; and the utility model uses a shock-absorbing spring, a foam plate, a refrigeration plate, a fan, a temperature sensor and a pressure detector to open a movable door for the staff to place a medicine barrel containing liquid explosives in a placement frame. Since the placement frame is provided with a shock-absorbing spring and a foam plate, the explosives are protected from impact, thereby increasing the safety of charging. In addition, since a refrigeration plate and a fan are installed in cavity A, cold air enters the medicine barrel through the ventilation groove, and an electric push rod drives the adjustment plate to move up and down, thereby controlling the amount of cold air entering. At the same time, the temperature sensor and pressure detector in cavity B are combined to monitor the internal environment of the medicine barrel in real time to avoid affecting the stability of the explosives. Once an abnormal situation is detected, the sound and light alarm will sound an alarm in time to ensure operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0017] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 3 This is a cross-sectional view of the protective component of the utility model Figure 1 ;

[0019] Figure 4 This is a cross-sectional view of the protective component of the utility model Figure 2 .

[0020] In the figure: 1. Drilling rig; 2. Drill rod; 3. Charging sleeve; 4. Protective assembly; 41. Placement frame; 42. Charging barrel; 43. Shock-absorbing spring; 44. Foam plate; 45. Movable door; 46. Partition; 461. Vent groove; 462. Extension plate; 463. Electric push rod; 464. Adjustment plate; 47. Cavity A; 471. Cover A; 472. Fan; 473. Refrigeration plate; 48. Cavity B; 481. Cover B; 482. Temperature sensor; 483. Pressure detector; 49. Control panel; 5. Spiral vane; 6. Liquid discharge cylinder; 61. Valve; 7. Liquid explosive pump; 71. Connecting pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0023] Combine Figure 1 A charging device for deep hole blasting in coal mines includes a drill rig 1, a drill rod 2 arranged on one side of the drill rig 1, and a charging sleeve 3 arranged at one end of the drill rod 2. The outer surfaces of the drill rod 2 and the charging sleeve 3 are both located inside the deep hole in the coal mine. A protective component 4 for increasing the safety of charging is provided on one side of the drill rig 1.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example 1:

[0026] See also Figures 1-4 The protection component 4 includes a placement frame 41 arranged on one side of the drilling rig 1, and a medicine storage barrel 42 is placed inside the placement frame 41, a shock-absorbing spring 43 is provided on the inner wall of the placement frame 41, a foam plate 44 is provided on one end of the shock-absorbing spring 43, the outer surface of the medicine storage barrel 42 contacts one side of the foam plate 44, a movable door 45 is hinged on one side of the placement frame 41, a partition 46 is provided inside the medicine storage barrel 42, the partition 46 divides the medicine storage barrel 42 into a cavity A47 and a cavity B48, the upper surfaces of the cavities A47 and B48 are both provided with cover plates A471 and B481, a fan 472 is provided at the bottom of the cover plate A471, a refrigeration plate 473 is provided on the inner wall of the cavity A47, and the upper surface of the partition 46 is provided with a An extension plate 462 is provided on one side of the ventilation groove 461 and the partition 46, and the extension plate 462 is located inside the cavity A47, an electric push rod 463 is provided at the bottom of the extension plate 462, and an adjustment plate 464 is fixedly installed on the telescopic end of the electric push rod 463, a temperature sensor 482 and a pressure detector 483 are provided inside the cavity B48, and a control panel 49 is provided on the upper surface of the cover B481, and the control panel 49 has a built-in sound and light alarm, the temperature sensor 482, the pressure detector 483, the fan 472 and the cooling plate 473 are all connected to the control panel 49 signal, which effectively solves the problem of heat accumulation of liquid explosives due to shaking, friction and other factors during use, and improves the safety of charging.

[0027] The inner wall of the medicine storage barrel 42 is provided with spiral blades 5 to reduce the heat generated by violent stirring and further improve safety performance.

[0028] The outer surface of the medicine storage barrel 42 is provided with a liquid outlet tube 6, and the outer surface of the liquid outlet tube 6 is provided with a valve 61. The valve 61 is connected to the control panel 49 for signal connection, which is convenient for controlling the outflow of explosives and indirectly helping to reduce heat accumulation.

[0029] A liquid explosive pump 7 is provided on the upper surface of the drilling rig 1, one end of the liquid explosive pump 7 is connected to the interior of the liquid discharge tube 6, and one end of the liquid explosive pump 7 is provided with a connecting pipe 71, one end of the connecting pipe 71 is connected to one end of the charging sleeve 3, so that the liquid explosive is transferred from the storage barrel 42 to the charging sleeve 3, reducing the risks that may be caused by manual operation and improving safety.

[0030] The inner walls of the connecting tube 71 and the charging sleeve 3 are both provided with an antistatic coating. The antistatic coating is a component made of epoxy resin reinforced with conductive carbon black, which prevents static electricity accumulation from causing explosions, significantly enhances the explosion-proof properties, and reduces the risk of explosion caused by static electricity.

[0031] A sealing ring is provided at the connection between the connecting pipe 71 and the charging sleeve 3 to ensure the sealing during the transmission of explosives and prevent leakage.

[0032] The outer surface of the medicine storage barrel 42 is provided with an insulation layer, which is a component made of polyurethane foam, which reduces the impact of the external environment on the internal refrigeration effect and prevents the loss of internal cold.

[0033] Specifically, opening the movable door 45 facilitates the staff to place the medicine storage barrel 42 containing liquid explosives in the placement frame 41. Since the placement frame 41 is provided with a shock-absorbing spring 43 and a foam plate 44, it can effectively absorb the vibration generated during transportation and work, protect the explosives from impact, and increase the safety of charging. In addition, since a refrigeration plate 473 and a fan 472 are installed in the cavity A47, cold air enters the medicine storage barrel 42 through the ventilation groove 461, and the electric push rod 463 drives the adjustment plate 464 to move up and down, which can control the ventilation. The opening and closing size of the air groove 461 is convenient for further controlling the amount of cold air entering. At the same time, the temperature sensor 482 and the pressure detector 483 in the cavity B48 are combined to monitor the internal environment of the medicine storage barrel 42 in real time. The outer surface of the cavity B48 is also provided with a pressure relief valve not shown in the figure. Then, the control panel 49 is used to adjust and maintain the appropriate temperature and pressure inside the medicine storage barrel 42 to avoid excessive temperature and excessive pressure affecting the stability of the explosives. Once an abnormal situation is detected, the sound and light alarm on the control panel 49 will be activated immediately, and the explosives will be discharged in time. An alarm is issued to ensure operational safety, and since the outer surface of the medicine storage barrel 42 is provided with an insulation layer, which is a component made of polyurethane foam, it can reduce the impact of the external environment on the internal refrigeration effect and prevent the loss of internal cold. Moreover, since the inner wall of the medicine storage barrel 42 is provided with a spiral blade 5, it can not only promote the mixing of liquid explosives, but also avoid the large amount of heat generated by mechanical stirring, further reduce heat and improve safety performance. Then, the liquid explosive is transferred from the medicine storage barrel 42 to the charging sleeve 3 through the liquid explosive pump 7, the connecting pipe 71 and the liquid outlet cylinder 6, and the outflow of the explosive can be controlled by the valve 61, indirectly helping to reduce heat accumulation and improve charging safety. In addition, since the inner walls of the connecting pipe 71 and the charging sleeve 3 are both provided with an anti-static coating, the anti-static coating is a component made of epoxy resin reinforced with conductive carbon black, so it significantly enhances the explosion-proof characteristics and reduces the risk of explosion caused by static electricity. A sealing ring is provided at the connection between the connecting pipe 71 and the charging sleeve 3 to ensure the sealing during the transmission of the explosive and prevent leakage.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A charging device for deep hole blasting in a coal mine, comprising a drill rig (1), a drill rod (2) arranged on one side of the drill rig (1), and a charging sleeve (3) arranged at one end of the drill rod (2), wherein the outer surfaces of the drill rod (2) and the charging sleeve (3) are both located inside the deep hole in the coal mine, and characterized in that: A protective component (4) for increasing the safety of charging is provided on one side of the drilling rig (1); The protection component (4) includes a placement frame (41) arranged on one side of the drilling rig (1), and a medicine storage barrel (42) is placed inside the placement frame (41), a shock-absorbing spring (43) is provided on the inner wall of the placement frame (41), a foam plate (44) is provided at one end of the shock-absorbing spring (43), the outer surface of the medicine storage barrel (42) contacts one side of the foam plate (44), a movable door (45) is hinged on one side of the placement frame (41), a partition (46) is provided inside the medicine storage barrel (42), the partition (46) divides the medicine storage barrel (42) into a cavity A (47) and a cavity B (48), the upper surfaces of the cavity A (47) and the cavity B (48) are both provided with a cover plate A (471) and a cover plate B (481), the bottom of the cover plate A (471) is provided with a fan (472), and the cavity A (47 ) is provided with a cooling plate (473) on the inner wall, a ventilation groove (461) is provided on the upper surface of the partition (46), an extension plate (462) is provided on one side of the partition (46), and the extension plate (462) is located inside the cavity A (47), an electric push rod (463) is provided at the bottom of the extension plate (462), and an adjustment plate (464) is fixedly installed on the telescopic end of the electric push rod (463), a temperature sensor (482) and a pressure detector (483) are provided inside the cavity B (48), a control panel (49) is provided on the upper surface of the cover B (481), and an audible and visual alarm is built into the control panel (49), and the temperature sensor (482), the pressure detector (483), the fan (472) and the cooling plate (473) are all connected to the control panel (49) for signal connection.

2. A charging device for deep hole blasting in coal mines according to claim 1, characterized in that: The inner wall of the medicine storage barrel (42) is provided with a spiral sheet (5).

3. The charging device for deep hole blasting in coal mines according to claim 1, characterized in that: The outer surface of the medicine storage barrel (42) is provided with a liquid outlet cylinder (6), and the outer surface of the liquid outlet cylinder (6) is provided with a valve (61), and the valve (61) is connected to the control panel (49) by signal.

4. The charging device for deep hole blasting in coal mines according to claim 3, characterized in that: A liquid explosive pump (7) is provided on the upper surface of the drilling rig (1), one end of the liquid explosive pump (7) is connected to the interior of the liquid discharge cylinder (6), and one end of the liquid explosive pump (7) is provided with a connecting pipe (71), one end of the connecting pipe (71) is connected to one end of the charging sleeve (3).

5. The charging device for deep hole blasting in coal mines according to claim 4, characterized in that: The inner walls of the connecting tube (71) and the charge sleeve (3) are both provided with an antistatic coating, which is a component made of epoxy resin reinforced with conductive carbon black.

6. The charging device for deep hole blasting in coal mines according to claim 5, characterized in that: A sealing ring is provided at the connection between the connecting pipe (71) and the charge sleeve (3).

7. The charging device for deep hole blasting in coal mines according to claim 1, characterized in that: The outer surface of the medicine storage barrel (42) is provided with a heat-insulating layer, which is a component made of polyurethane foam.

Images