Coal mine high-position blasting drilling quantitative charging device

Abstract

The utility model relates to the technical field of coal mine blasting, in particular to a coal mine high-position blasting drilling quantitative charging device which comprises a base, a fixing column and a powder storage barrel which are sequentially connected, a discharging pipe is arranged at the bottom end of the powder storage barrel, a first electromagnetic valve is arranged on the discharging pipe, a gravity detection device is arranged around the discharging pipe, and a connecting rod is arranged at the bottom end of the gravity detection device. A second electromagnetic valve is arranged at the discharging position of the bottom end of the feeding hopper. During use, the first electromagnetic valve is firstly opened, the second electromagnetic valve is closed, explosives in the explosive storage barrel enter the feeding hopper from the discharging pipe, the overall weight of the feeding hopper is gradually increased due to the increase of the amount of the explosives in the feeding hopper, and when the overall weight of the feeding hopper reaches a set value, namely the explosive loading amount in the feeding hopper reaches the set amount, the first electromagnetic valve is closed; and a second electromagnetic valve is opened, and the explosive in the feeding hopper is discharged from the bottom end of the feeding hopper for use, so that the effects of reducing the workload of operators, improving the explosive loading precision and avoiding resource waste are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine blasting, in particular to a quantitative charge charging device for high-position blasting drilling in coal mines. Background Art

[0002] With the increase in the depth and intensity of coal mining, mine rock burst disasters occur frequently, posing a great safety hazard to coal mine production. During the coal seam recovery process in rock burst mines with hard and thick roofs, high-position deep hole blasting is often used to relieve pressure on the hard and thick roofs. However, the space in the high-position construction tunnels during high-position drilling and blasting operations is limited, and the construction accuracy requirements are high. The charging method and safety issues of high-position drilling are becoming more and more worthy of attention.

[0003] However, in the prior art, the traditional charging method generally adopts manual installation, which has low efficiency and high labor intensity, and is easy to cause waste of explosives during the manual charging process. At the same time, manual charging cannot guarantee the accuracy of the charge amount, thus affecting the blasting effect. Although some automatic charging devices have been proposed, these devices often have problems such as complex structure, high cost, difficult operation or inability to accurately control the charge amount of explosives. In order to overcome the shortcomings of the prior art, a coal mine high-position drilling blasting charging device with simple structure, low cost, easy operation and accurate control of charge amount is needed. Utility Model Content

[0004] The utility model aims to provide a quantitative charging device for high-position blasting drilling in coal mines to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A quantitative charging device for high-position blasting drilling in a coal mine, comprising a base, a fixed column is fixedly arranged circumferentially on the top surface of the base, a medicine storage barrel is fixedly arranged on the top of the fixed column, a discharge pipe is arranged at the center of the bottom end of the medicine storage barrel, a first solenoid valve is arranged on the discharge pipe, a weighing assembly is also fixedly arranged at the bottom end of the medicine storage barrel, the weighing assembly comprises a gravity detection device, a connecting rod, a feed hopper and a second solenoid valve, at the bottom end of the medicine storage barrel, with the discharge pipe as the center, a plurality of gravity detection devices are evenly arranged around the discharge pipe, a connecting rod is fixedly arranged at the bottom end of the gravity detection device, a feed hopper is fixedly arranged at the bottom end of the connecting rod, and a second solenoid valve is arranged at the discharge position of the bottom end of the feed hopper.

[0007] Preferably, a charging sleeve is movably provided at the bottom end of the feed hopper, a thread groove is provided at the top end of the charging sleeve, a sealing cover is provided on the inner thread of the thread groove, and the charging sleeve is located in the middle of the top end of the base.

[0008] Preferably, a feed pipe is fixedly provided on the right side of the top of the medicine storage barrel, and a top cover is movably provided on the top of the feed pipe.

[0009] Preferably, a mounting groove is provided on the front side of the medicine storage barrel, and an observation window is fixedly provided in the mounting groove.

[0010] Preferably, a connecting plate is fixedly provided under the observation window, and a warning sign is fixedly provided on the surface of the connecting plate.

[0011] Preferably, a support column is fixedly provided on the left side of the top of the base, and a fixing plate is fixedly provided on the top of the support column; a display screen is fixedly provided on the front of the fixing plate, and a plurality of control buttons are fixedly provided below the display screen.

[0012] Preferably, the display screen is used to display the numerical value of the gravity detection device, and the control buttons include a first button for controlling the opening and closing of the first solenoid valve and a second button for controlling the opening and closing of the second solenoid valve.

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

[0014] 1. The utility model of the quantitative charging device for high-position blasting drilling in coal mines is provided with a gravity detection device, a connecting rod, a feed hopper and a second solenoid valve. When in use, the first solenoid valve is first opened and the second solenoid valve is closed, so that the explosive inside the storage barrel enters the feed hopper from the discharge pipe. The overall weight of the feed hopper gradually increases due to the increase in the amount of explosives inside. When the overall weight of the feed hopper reaches a set value, that is, when the amount of charge in the feed hopper reaches a set amount, the first solenoid valve is closed and the second solenoid valve is opened to discharge the explosive inside the feed hopper from the bottom of the feed hopper for use, thereby achieving the effect of reducing the workload of operators, improving the accuracy of charging, and avoiding waste of resources.

[0015] 2. The utility model relates to a quantitative charging device for high-position blasting drilling in coal mines. By setting a charging sleeve, when in use, the sealing cover is unscrewed and taken out from the top of the charging sleeve. The charging sleeve is placed in the middle of the base, so that the explosives inside the feed hopper can enter the inside of the charging sleeve from the bottom of the feed hopper. The sealing cover is then re-covered on the top of the charging sleeve and the sealing cover is rotated in the opposite direction to ensure that the opening of the charging sleeve is completely sealed. Finally, the charging sleeve is placed deep in the borehole for blasting operations, thereby achieving the effect of improving the convenience and safety of the blasting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a front view schematic diagram of the utility model;

[0018] Figure 3 For the utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0019] In the figure: 1. base; 2. fixing column; 3. medicine storage barrel; 4. discharge pipe; 5. first solenoid valve; 6. gravity detection device; 7. connecting rod; 8. feed hopper; 9. second solenoid valve; 10. charging sleeve; 11. threaded groove; 12. sealing cover; 13. feed pipe; 14. top cover; 15. mounting groove; 16. observation window; 17. support column; 18. fixing plate; 19. display screen; 20. control button; 21. connecting plate; 22. warning sign. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 3 As shown, the utility model provides a technical solution: a quantitative charging device for high-position blasting drilling in a coal mine, comprising a circular base 1, a plurality of fixed columns 2 are fixedly arranged around the top surface of the base 1, and the present embodiment has two fixed columns 2 arranged for this purpose, a cylindrical medicine storage barrel 3 is fixedly arranged on the top of the fixed column 2, a discharge pipe 4 is arranged at the center of the bottom end of the medicine storage barrel 3, a first solenoid valve 5 is arranged on the discharge pipe 4, and a weighing assembly is also fixedly arranged at the bottom end of the medicine storage barrel 3, the weighing assembly comprises a gravity detection device 6, a connecting rod 7, a feed hopper 8 and a second solenoid valve 9, specifically, at the bottom end of the medicine storage barrel 3, with the discharge pipe 4 as the center, a plurality of gravity detection devices 6 are evenly arranged around the discharge pipe 4, and the present embodiment has two gravity detection devices 6 arranged for this purpose, a connecting rod 7 is fixedly arranged at the lower part of the gravity detection device 6, a feed hopper 8 is fixedly arranged at the bottom end of the connecting rod 7, and a second solenoid valve 9 is arranged at the discharge position at the bottom end of the feed hopper 8;

[0022] In this embodiment, through the arrangement of the gravity detection device 6, the connecting rod 7, the feed hopper 8 and the second solenoid valve 9, when in use, the first solenoid valve 5 is first opened, and the second solenoid valve 9 is closed, so that the explosive inside the medicine storage barrel 3 enters the feed hopper 8 from the discharge pipe 4. The overall weight of the feed hopper 8 gradually increases due to the increase in the amount of explosive inside. When the overall weight of the feed hopper 8 reaches the set value, that is, when the amount of medicine in the feed hopper reaches the set amount, the first solenoid valve 5 is closed, and the second solenoid valve 9 is opened, and the explosive inside the feed hopper 8 is discharged from the bottom of the feed hopper 8 for use, thereby achieving the effect of reducing the workload of operators, improving the accuracy of the charge amount, and avoiding waste of resources;

[0023] like Figure 1 and Figure 2 As shown, a charge sleeve 10 is movably provided at the bottom of the feed hopper 8, a thread groove 11 is provided at the top of the charge sleeve 10, a sealing cover 12 is provided in the thread groove 11, and the charge sleeve 10 is located in the middle of the top of the base 1;

[0024] In this embodiment, by setting the charge sleeve 10, when in use, the sealing cover 12 is unscrewed and taken out from the top of the charge sleeve 10, and the charge sleeve 10 is placed in the middle of the base 1, so that the explosive inside the feed hopper 8 can enter the inside of the charge sleeve 10 from the bottom of the feed hopper 8, and then the sealing cover 12 is re-covered on the top of the charge sleeve 10, and the sealing cover 12 is rotated in the opposite direction to ensure that the opening of the charge sleeve 10 is completely sealed, and finally the charge sleeve 10 is placed deep in the borehole for blasting operations, thereby achieving the effect of improving the convenience and safety of the blasting operation;

[0025] like Figure 1 As shown, a feed pipe 13 is arranged on the right side of the top of the medicine storage barrel 3, and a top cover 14 is movably arranged on the top of the feed pipe 13. A mounting groove 15 is provided on the front of the medicine storage barrel 3, and an observation window 16 is fixedly arranged in the mounting groove 15. A support column 17 is fixedly arranged on the left side of the top of the base 1, and a fixing plate 18 is fixedly arranged on the top of the support column 17. A display screen 19 is fixedly arranged on the front of the fixing plate 18, and a plurality of control buttons 20 are fixedly arranged below the display screen 19. The display screen 19 is used to display the value of the gravity detection device 6. The control buttons include a first button for controlling the opening and closing of the first solenoid valve 5 and a second button for controlling the opening and closing of the second solenoid valve 9. A connecting plate 21 is fixedly arranged below the observation window 16, and a warning sign 22 is fixedly arranged on the surface of the connecting plate 21;

[0026] In this embodiment, through the setting of the feed pipe 13, the user can observe the remaining amount of explosives in the medicine storage barrel 3 through the observation window 16 inside the installation groove 15 during use. Once it is found that the amount of explosives in the medicine storage barrel 3 is small, the user can remove the top cover 14 and then pour explosives into the feed pipe 13 to ensure that the device has sufficient explosives during operation, thereby achieving the effect of avoiding the entire device from affecting the blasting operation due to insufficient explosives during use. Through the setting of the display screen 19 and the control button 20, the display screen 19 can display the specific value detected by the gravity detection device 6 during use, and the control button 20 can adjust the opening and closing of the first solenoid valve 5 and the second solenoid valve 9, thereby achieving the effect of facilitating the operator to control the entire device. Through the setting of the connecting plate 21, the warning sign 22 is fixed to the front of the medicine storage barrel 3 during use. Through the setting of the warning sign 22, it can warn the surrounding people to pay attention to safety and prohibit open flames during use, thereby achieving the effect of improving the safety of the entire device.

[0027] Working principle: through the setting of gravity detection device 6, connecting rod 7, feed hopper 8 and second electromagnetic valve 9, when in use, first open the first electromagnetic valve 5, close the second electromagnetic valve 9, so that the explosive inside the medicine storage barrel 3 enters the feed hopper 8 from the discharge pipe 4, and the overall weight of the feed hopper 8 gradually increases due to the increase of the amount of explosive inside. When the overall weight of the feed hopper 8 reaches the set value, that is, when the amount of medicine in the feed hopper reaches the set amount, close the first electromagnetic valve 5, open the second electromagnetic valve 9, and discharge the explosive inside the feed hopper 8 from the bottom of the feed hopper 8 for use, thereby achieving the effect of reducing the workload of operators, improving the accuracy of the charge amount, and avoiding waste of resources;

[0028] At the same time, through the setting of the charging sleeve 10, when in use, the sealing cover 12 is unscrewed and taken out from the top of the charging sleeve 10, and the charging sleeve 10 is placed in the middle of the base 1, so that the explosives inside the feed hopper 8 can enter the inside of the charging sleeve 10 from the bottom of the feed hopper 8, and then the sealing cover 12 is re-covered on the top of the charging sleeve 10, and the sealing cover 12 is rotated in the opposite direction to ensure that the opening of the charging sleeve 10 is completely sealed, and finally the charging sleeve 10 is placed deep in the borehole for blasting operations, thereby achieving the effect of improving the convenience and safety of blasting operations; through the setting of the feeding pipe 13, when in use, the user can observe the remaining amount of explosives inside the medicine storage barrel 3 through the observation window 16 inside the mounting groove 15. Once it is found that the amount of explosives inside the medicine storage barrel 3 is small, the user can use The user can remove the top cover 14 and then pour explosives into the feed pipe 13 to ensure that the device has sufficient explosives during operation, thereby achieving the effect of avoiding the entire device from affecting the blasting operation due to insufficient explosives during use. Through the setting of the display screen 19 and the control button 20, the display screen 19 can display the specific value detected by the gravity detection device 6 when in use, and the control button 20 can adjust the opening and closing of the first solenoid valve 5 and the second solenoid valve 9, thereby achieving the effect of facilitating the operator to control the entire device. Through the setting of the connecting plate 21, the warning sign 22 is fixed to the front of the medicine storage barrel 3 when in use. Through the setting of the warning sign 22, it can warn the surrounding people to pay attention to safety and prohibit open flames when in use, thereby achieving the effect of improving the safety of the entire device.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A quantitative charging device for high-position blasting drilling in coal mines, characterized in that: The invention comprises a base (1), a fixing column (2) is fixedly arranged on the top surface of the base (1) in the circumferential direction, a medicine storage barrel (3) is fixedly arranged on the top of the fixing column (2), a discharge pipe (4) is arranged at the center of the bottom end of the medicine storage barrel (3), a first solenoid valve (5) is arranged on the discharge pipe (4), a weighing assembly is also fixedly arranged at the bottom end of the medicine storage barrel (3), the weighing assembly comprises a gravity detection device (6), a connecting rod (7), a feed hopper (8) and a second solenoid valve (9), at the bottom end of the medicine storage barrel (3), the discharge pipe (4) is fixedly arranged, and a first solenoid valve (5) is arranged on the discharge pipe (4). 4) is the center, and a plurality of gravity detection devices (6) are evenly arranged around the discharge pipe (4); a connecting rod (7) is fixedly arranged at the bottom end of the gravity detection device (6), a feed hopper (8) is fixedly arranged at the bottom end of the connecting rod (7), and a second solenoid valve (9) is arranged at the discharge position at the bottom end of the feed hopper (8); a charge sleeve (10) is movably arranged at the bottom end of the feed hopper (8), a threaded groove (11) is provided at the top end of the charge sleeve (10), and a sealing cover (12) is arranged on the inner thread of the threaded groove (11).

2. The quantitative charging device according to claim 1, characterized in that: A feed pipe (13) is fixedly arranged on the right side of the top end of the medicine storage barrel (3), and a top cover (14) is movably arranged on the top end of the feed pipe (13).

3. The quantitative charging device according to claim 1, characterized in that: The front side of the medicine storage barrel (3) is provided with a mounting groove (15), and an observation window (16) is fixedly arranged in the mounting groove (15).

4. The quantitative charging device according to claim 3, characterized in that: A connecting plate (21) is fixedly arranged below the observation window (16), and a warning sign (22) is fixedly arranged on the surface of the connecting plate (21).

5. The quantitative charging device according to claim 1, characterized in that: A support column (17) is fixedly arranged on the left side of the top of the base (1), and a fixing plate (18) is fixedly arranged on the top of the support column (17); a display screen (19) is fixedly arranged on the front of the fixing plate (18), and a plurality of control buttons (20) are fixedly arranged below the display screen (19).

6. The quantitative charging device according to claim 5, characterized in that: The display screen (19) is used to display the numerical value of the gravity detection device (6), and the control buttons include a first button for controlling the opening and closing of the first electromagnetic valve (5) and a second button for controlling the opening and closing of the second electromagnetic valve (9).

Images