Device for testing explosive returning capability of on-site mixed emulsion explosive

Abstract

The invention discloses an on-site mixed emulsion explosive returning capability testing device which comprises a mounting table, a turntable, a rotating frame and an explosive loading mechanism, the turntable is mounted in the middle of the upper end of the mounting table, the lower end of the rotating frame is rotatably mounted at the circle center of the turntable, an arc-shaped rotating groove is formed in the upper part of the turntable, and the rotating frame is rotatably connected with the rotating groove; the charging mechanism is installed on the upper portion of the rotating frame, a signal receiver used for capturing time needed by a sample to slide to the position is installed on the inner wall of the middle of the charging mechanism, the signal receiver is externally connected with a timer through a wire, a heater is installed on the outer side wall of the charging mechanism, and the heater is externally connected with a temperature controller through a wire. The temperature, the surface roughness and the installation angle of the interior of the charging mechanism can be adjusted, the field mixed loading emulsion explosive returning capacity is tested, the better experiment effect is achieved, meanwhile, experiment devices are of detachable installation structures, and the interior is convenient to clean.

Description

Technical Field

[0001] The invention relates to the technical field of on-site mixed emulsion explosive return capacity experiment, in particular to an on-site mixed emulsion explosive return capacity testing device. Background Art

[0002] On-site mixed emulsion explosives are a key development direction of the civil explosives industry and have been widely and well used in open-pit mining. However, in the upward hole blasting construction underground, in order to meet the pumping conditions, the on-site mixed emulsion explosives need to have a certain fluidity. The better the fluidity of the on-site mixed emulsion explosives, the shorter the time required to slide a certain distance, the more likely it is to have charge return. The worse the anti-charge return performance, the greater the angle between the blasthole and the horizontal, the more likely it is to have charge return. Generally, the fluidity of on-site mixed emulsion explosives is greatly affected by temperature. The higher the temperature, the better the fluidity and the more serious the charge return.

[0003] Therefore, when charging upward deep holes, serious charge return often occurs, which not only causes waste of raw materials, increases construction costs, prolongs construction progress, but also affects blasting effects and creates certain safety hazards. Due to the lack of testing methods and devices for the charge return capacity of on-site mixed emulsion explosives, the only way to adjust the explosive formula and equipment design is through actual on-site construction experience, which has serious limitations. Therefore, it is necessary to propose a test device for the charge return capacity of on-site mixed emulsion explosives. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one object of the present invention is to provide an on-site mixed emulsion explosive return capacity testing device, which can realize the test of the mixed emulsion explosive return capacity.

[0005] A device for testing the return capacity of mixed emulsion explosives on site according to the present invention comprises a mounting platform, a turntable, a rotating frame and a charging mechanism, wherein the turntable is mounted on the middle part of the upper end of the mounting platform, the lower end of the rotating frame is rotatably mounted at the center of the turntable, the upper part of the turntable is provided with an arc-shaped rotating groove, the rotating frame is rotatably connected to the rotating groove, the charging mechanism is mounted on the upper part of the rotating frame, a signal receiver for capturing the time required for a sample to slide to this position is mounted on the middle inner wall of the charging mechanism, the signal receiver is externally connected to a timer via a wire, a heater is mounted on the outer side wall of the charging mechanism, and the heater is externally connected to a temperature controller via a wire.

[0006] Preferably, the drug loading mechanism comprises a drug loading cartridge assembly, a surface roughness simulation assembly and a sleeve assembly, the drug loading cartridge assembly is sleeved inside the sleeve assembly, the upper side walls of the drug loading cartridge assembly and the sleeve assembly are evenly provided with through holes, the surface roughness simulation assembly is sleeved on the outside of the sleeve assembly, a bump is installed on the surface roughness simulation assembly at the position corresponding to the through hole, the upper end of the sleeve assembly is connected to an upper end cover by a snap, a sample cup is installed on the upper end of the upper end cover, a movable bottom support plate is installed on the side wall of the upper end cover, a lower end cover is installed at the lower end of the sleeve assembly, a piston is slidably installed inside the drug loading cartridge assembly, a pressure sensor is installed on the side of the piston away from the lower end cover, a rotary rod is installed on the side of the piston close to the lower end cover, the rotary rod is rotatably connected to the lower end cover, a knob is installed on the end of the rotary rod away from the piston, and the knob is arranged on the outside of the drug loading cartridge assembly.

[0007] Preferably, the drug cartridge assembly includes a leak-proof layer and a drug cartridge body, the leak-proof layer is sleeved on the outside of the drug cartridge body, the leak-proof layer is made of elastic rubber material, the inner diameter of the outlet of the sample cup is matched with the inner diameter of the drug cartridge body, and one end of the bottom support plate is semicircular and has the same diameter as the diameter of the drug cartridge body.

[0008] Preferably, the sleeve assembly includes a sleeve body, and the sleeve body includes a cylinder composed of four quarter-cylindrical plates. The through hole is provided at the upper side walls of the cartridge body and the sleeve body. The upper end of the sleeve body is fixed by an upper end cover, and the lower end of the sleeve body is fixed by a lower end cover. Clamping grooves are provided on both sides of the quarter-cylindrical plates. Rubber columns are provided at the positions of the clamping grooves on the outside of the leak-proof layer corresponding to the positions of the clamping grooves, and the rubber columns are fixed by the clamping grooves.

[0009] Preferably, two groups of signal receiver mounting holes are provided in the middle and bottom of the side wall of the drug cartridge body corresponding to the through hole area, and the two groups of signal receivers are respectively installed inside the signal receiver mounting holes, and wire connection holes are provided in the leak-proof layer and the sleeve body corresponding to the positions of the signal receiver mounting holes.

[0010] Preferably, the surface roughness simulation component includes a fixed cylinder and four groups of quarter-cylindrical clamping plates whose inner diameters are matched with the outer diameters of the sleeve body, the outer walls of the clamping plates are connected to the inner walls of the fixed cylinder through springs, the protrusions are installed at positions on the inner walls of the clamping plates corresponding to the through holes, a clamping screw mounting hole is provided in the middle of the side wall of the fixed cylinder corresponding to the middle of the side wall of the clamping plate, and a clamping screw is installed inside the clamping screw mounting hole to allow the protrusion to enter the through hole.

[0011] Preferably, a positioning hole is installed on the side wall of the sleeve body, and a fixing hole is opened at a position of the fixing tube corresponding to the positioning hole. The fixing tube is fixed by fixing screws installed in the positioning hole and the fixing hole.

[0012] Preferably, a limiting column is installed on one side of the upper end cover close to the interior of the sleeve body for filling the sample starting from the test section.

[0013] Preferably, the rotating frame comprises a rotating rod and a clamp, the rotating rod is rotatably connected to the rotating groove, the lower end of the rotating rod is rotatably mounted at the center of the rotating disk, and the clamp is mounted on the upper part of the rotating rod.

[0014] The beneficial effects of the present invention are as follows: the temperature inside the charging mechanism, the surface roughness and the installation angle of the charging mechanism can be adjusted, and the return capacity of the on-site mixed emulsion explosive can be tested, which has better experimental results. At the same time, the experimental devices are all detachable installation structures, which is convenient for cleaning the inside. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the attached picture:

[0016] Figure 1 This is a schematic diagram of the structure of the on-site mixed emulsion explosive return capacity testing device proposed by the present invention;

[0017] Figure 2 It is a structural schematic diagram of the charge charging mechanism proposed by the present invention;

[0018] Figure 3 It is a structural schematic diagram of the drug cartridge assembly proposed by the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the surface roughness simulation component part proposed by the present invention;

[0020] Figure 5 It is a schematic structural diagram of the sleeve assembly part proposed by the present invention.

[0021] In the figure: 1-mounting table, 2-turntable, 3-rotating frame, 4-charging mechanism, 5-timer, 6-temperature controller;

[0022] 31-rotating rod, 32-holding hoop;

[0023] 41-cartridge assembly, 42-upper end cover, 43-surface roughness simulation assembly, 44-sleeve assembly, 45-piston, 46-lower end cover, 47-rotating rod, 48-bottom support plate, 49-sample cup;

[0024] 411-leakage-proof layer, 412-rubber column, 413-cartridge body;

[0025] 431-fixing cylinder, 432-clamping plate, 433-fixing hole, 434-bump, 435-clamping screw mounting hole;

[0026] 441 - sleeve body, 442 - through hole, 443 - clamping groove, 444 - positioning hole. DETAILED DESCRIPTION

[0027] Reference Figure 1 A device for testing the return capacity of mixed emulsion explosives on site comprises a mounting platform 1, a turntable 2, a rotating frame 3 and a charging mechanism 4. The turntable 2 is mounted on the middle part of the upper end of the mounting platform 1. The lower end of the rotating frame 3 can be rotatably mounted at the center of the turntable 2. The upper part of the turntable 2 is provided with an arc-shaped rotating groove. The rotating frame 3 is rotatably connected to the rotating groove. The charging mechanism 4 is mounted on the upper part of the rotating frame 3. A signal receiver for capturing the time required for the sample to slide to this position is mounted on the inner wall of the middle part of the charging mechanism 4. The signal receiver is externally connected to a timer 5 through a wire. A heater is mounted on the outer side wall of the charging mechanism 4. The heater is externally connected to a temperature controller 6 through a wire.

[0028] Obviously, based on the above, in this embodiment, the rotating frame 3 can rotate around the turntable 2 to simulate the tilt angle, and the temperature is adjusted by the temperature controller 6 to achieve adjustable temperature. The time when the sample slides to the preset position is captured by the signal receiver and displayed by the timer 5. At the same time, the signal receiver, heater, timer 5 and temperature controller 6 in this application all adopt existing mature products and do not involve structural improvements, so they will not be repeated here.

[0029] In this embodiment, refer to Figure 2 The drug loading mechanism 4 includes a drug loading cartridge assembly 41, a surface roughness simulation assembly 43 and a sleeve assembly 44. The drug loading cartridge assembly 41 is sleeved inside the sleeve assembly 44. The upper side walls of the drug loading cartridge assembly 41 and the sleeve assembly 44 are evenly provided with through holes 442. The surface roughness simulation assembly 43 is sleeved outside the sleeve assembly 44. A bump 434 is installed at the position of the through hole 442 of the surface roughness simulation assembly 43. The upper end of the sleeve assembly 44 is connected to the upper end cover 42 by a buckle. A sample cup 49 is installed at the upper end of 42, a movable bottom support plate 48 is installed at the side wall of the upper end cover 42, a lower end cover 46 is installed at the lower end of the sleeve assembly 44, a piston 45 is slidably installed inside the drug cartridge assembly 41, a pressure sensor is installed on the side of the piston 45 away from the lower end cover, a rotary rod 47 is installed on the side of the piston 45 close to the lower end cover 46, the rotary rod 47 is rotatably connected to the lower end cover 46, a knob is installed on the end of the rotary rod 47 away from the piston 45, and the knob is arranged on the outside of the drug cartridge assembly 41.

[0030] In this embodiment, refer to Figure 3The drug cartridge assembly 41 includes a leak-proof layer 411 and a drug cartridge body 413. The leak-proof layer 411 is sleeved on the outside of the drug cartridge body 413. The leak-proof layer 411 is made of elastic rubber material. The inner diameter of the outlet of the sample cup 49 is matched with the inner diameter of the drug cartridge body 413. One end of the bottom support plate 48 is semicircular and has the same diameter as the diameter of the drug cartridge body 413.

[0031] In this embodiment, refer to Figure 5 The sleeve assembly 44 includes a sleeve body 441, and the sleeve body 441 includes a cylinder composed of four quarter-cylindrical plates. The through hole 442 is provided at the upper side wall of the cartridge body 413 and the sleeve body 441. The upper end of the sleeve body 441 is fixed by the upper end cover 42, and the lower end of the sleeve body 441 is fixed by the lower end cover 46. Clamping grooves 443 are provided on both sides of the quarter-cylindrical plates. A rubber column 412 is provided at the position of the clamping groove corresponding to the outer side of the leak-proof layer 411, and the rubber column 412 is fixed by the clamping groove 443.

[0032] In this embodiment, two groups of signal receiver mounting holes are provided in the middle and bottom of the side wall of the cartridge body 413 corresponding to the through hole 442, and the two groups of signal receivers are respectively installed inside the signal receiver mounting holes, and wire connection holes are provided at the positions of the signal receiver mounting holes corresponding to the leakage-proof layer 411 and the sleeve body 441.

[0033] In this embodiment, refer to Figure 3 and Figure 4 The surface roughness simulation component 43 includes a fixed cylinder 431 and four groups of quarter-cylindrical clamping plates 432 whose inner diameters are matched with the outer diameters of the sleeve body 441. The outer wall of the clamping plate 432 is connected to the inner wall of the fixed cylinder 431 through a spring. The protrusion 434 is installed on the inner wall of the clamping plate 432 at a position corresponding to the through hole 442. A clamping screw mounting hole is opened in the middle of the side wall of the fixed cylinder 431 and the middle of the side wall of the clamping plate 432. A clamping screw is installed inside the clamping screw mounting hole to allow the protrusion 434 to enter the through hole 442.

[0034] In this embodiment, a positioning hole 444 is installed on the side wall of the sleeve body 441 , and a fixing hole 433 is opened at the position of the fixing tube 431 corresponding to the positioning hole. The fixing tube 431 is fixed by fixing screws installed inside the positioning hole 444 and the fixing hole 433 .

[0035] In this embodiment, a limiting column is installed on one side of the upper end cover 42 close to the inside of the sleeve body 441 to enable the sample to be filled starting from the test section.

[0036] In this embodiment, the rotating frame 3 includes a rotating rod 31 and a clamp 32. The rotating rod 31 is rotatably connected to the rotating groove. The lower end of the rotating rod 31 is rotatably installed at the center of the turntable 2, and the clamp 32 is installed on the upper part of the rotating rod 31.

Claims

1. A device for testing the return capacity of on-site mixed emulsion explosives, characterized in that: The invention comprises a mounting platform (1), a rotating disk (2), a rotating frame (3) and a charging mechanism (4), wherein the rotating disk (2) is mounted at the middle of the upper end of the mounting platform (1), the lower end of the rotating frame (3) is rotatably mounted at the center of the rotating disk (2), the upper part of the rotating disk (2) is provided with an arc-shaped rotating groove, the rotating frame (3) is rotatably connected to the rotating groove, the charging mechanism (4) is mounted on the upper part of the rotating frame (3), a signal receiver for capturing the time required for the sample to slide to this position is mounted on the inner wall of the middle part of the charging mechanism (4), the signal receiver is externally connected to a timer (5) via a wire, and a heater is mounted on the outer side wall of the charging mechanism (4), and the heater is externally connected to a temperature controller (6) via a wire.

2. The on-site mixed emulsion explosive return capacity testing device according to claim 1, characterized in that: The drug loading mechanism (4) comprises a drug loading cartridge assembly (41), a surface roughness simulation assembly (43) and a sleeve assembly (44); the drug loading cartridge assembly (41) is sleeved inside the sleeve assembly (44); through holes (442) are evenly provided on the upper side walls of the drug loading cartridge assembly (41) and the sleeve assembly (44); the surface roughness simulation assembly (43) is sleeved on the outside of the sleeve assembly (44); a protrusion (434) is installed on the surface roughness simulation assembly (43) at a position corresponding to the through hole (442); the upper end of the sleeve assembly (44) is connected to an upper end cover (42) by a buckle; the upper end cover (44) is A sample cup (49) is installed at the upper end of the upper end cover (42), a movable bottom support plate (48) is installed at the side wall of the upper end cover (42), a lower end cover (46) is installed at the lower end of the sleeve assembly (44), a piston (45) is slidably installed inside the drug cartridge assembly (41), a pressure sensor is installed on the side of the piston (45) away from the lower end cover, a rotary rod (47) is installed on the side of the piston (45) close to the lower end cover (46), the rotary rod (47) is rotatably connected to the lower end cover (46), and a knob is installed on the end of the rotary rod (47) away from the piston (45), and the knob is arranged on the outside of the drug cartridge assembly (41).

3. A device for testing the return capacity of on-site mixed emulsion explosives according to claim 2, characterized in that: The drug cartridge assembly (41) comprises a leakproof layer (411) and a drug cartridge body (413), wherein the leakproof layer (411) is sleeved on the outer side of the drug cartridge body (413), and the leakproof layer (411) is made of elastic rubber material. The inner diameter of the outlet of the sample cup (49) is matched with the inner diameter of the drug cartridge body (413), and one end of the bottom support plate (48) is semicircular and has the same diameter as the diameter of the drug cartridge body (413).

4. The on-site mixed emulsion explosive return capacity testing device according to claim 3, characterized in that: The sleeve assembly (44) includes a sleeve body (441), and the sleeve body (441) includes a cylinder composed of four quarter-cylindrical plates. The through hole (442) is provided on the upper side wall of the cartridge body (413) and the sleeve body (441). The upper end of the sleeve body (441) is fixed by an upper end cover (42), and the lower end of the sleeve body (441) is fixed by a lower end cover (46). Clamping grooves (443) are provided on both sides of the quarter-cylindrical plates. A rubber column (412) is provided on the outer side of the leak-proof layer (411) at a position corresponding to the clamping groove, and the rubber column (412) is fixed by the clamping groove (443).

5. The on-site mixed emulsion explosive return capacity testing device according to claim 3, characterized in that: The side wall of the cartridge body (413) is provided with two groups of signal receiver mounting holes in the middle and bottom corresponding to the through hole (442), and the two groups of signal receivers are respectively installed inside the signal receiver mounting holes, and the leak-proof layer (411) and the sleeve body (441) are provided with wire connection holes at the positions corresponding to the signal receiver mounting holes.

6. The on-site mixed emulsion explosive return capacity testing device according to claim 4, characterized in that: The surface roughness simulation component (43) comprises a fixed cylinder (431) and four groups of quarter-cylindrical clamping plates (432) whose inner diameters match the outer diameters of the sleeve body (441); the outer walls of the clamping plates (432) are connected to the inner walls of the fixed cylinder (431) via springs; the protrusions (434) are mounted on the inner walls of the clamping plates (432) at positions corresponding to the through holes (442); a clamping screw mounting hole is provided at a middle position of the side wall of the fixed cylinder (431) corresponding to the middle position of the side wall of the clamping plate (432); a clamping screw is installed inside the clamping screw mounting hole to allow the protrusions (434) to enter the through holes (442).

7. The on-site mixed emulsion explosive return capacity testing device according to claim 5, characterized in that: A positioning hole (444) is installed on the side wall of the sleeve body (441), and a fixing hole (433) is opened at a position of the fixing tube (431) corresponding to the positioning hole. The fixing tube (431) is fixed by fixing screws installed inside the positioning hole (444) and the fixing hole (433).

8. The on-site mixed emulsion explosive return capacity testing device according to claim 4, characterized in that: A limiting column is installed on one side of the upper end cover (42) close to the inside of the sleeve body (441) to enable the sample to be filled starting from the test section.

9. The on-site mixed emulsion explosive return capacity testing device according to claim 1, characterized in that: The rotating frame (3) comprises a rotating rod (31) and a hoop (32); the rotating rod (31) is rotatably connected to the rotating groove; the lower end of the rotating rod (31) is rotatably mounted at the center of the rotating disk (2); and the hoop (32) is mounted on the upper part of the rotating rod (31).

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