An emulsion explosive on-site charging device and a charging method

Abstract

The application discloses an emulsion explosive on-site charging device, which comprises a charging pipe, a lifting mechanism, a filling cylinder, an extrusion mechanism and an air spacer placing mechanism. The charging pipe is arranged on the top of the filling cylinder. A one-way valve is arranged at the joint of the emulsion explosive charging pipe and the filling cylinder. The extrusion mechanism is arranged on the top of the filling cylinder. The charging pipe is communicated with the filling cylinder through the extrusion mechanism. The device is convenient for realizing rapid charging, and can realize uncoupling charging during the charging, thereby improving the blasting efficiency.

Description

Technical Field

[0001] This invention relates to the field of emulsion explosives loading technology, specifically to an emulsion explosives on-site loading device and loading method. Background Technology

[0002] Current methods for loading emulsion explosives generally fall into two categories: one involves pre-processing the emulsion explosive, packaging it in bags, transporting it to the blasting point, placing it into the borehole, and then detonating it; the other is on-site loading, where the emulsion matrix and sensitizer are separated. During loading, the emulsion matrix and sensitizer are mixed, and the mixture needs to be sensitized by the sensitizer for 20-30 minutes to form an explosive emulsion explosive. This explosive is then filled into the borehole through a loading tube. The second method offers higher safety, but it cannot accommodate an air gaper in the borehole during loading, requiring coupled loading, which reduces the blasting effectiveness. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention proposes an on-site charging device and method for emulsion explosives, which facilitates rapid charging and enables decoupled charging during the charging process, thereby improving blasting efficiency.

[0004] To achieve the above objectives, the present invention provides: an on-site charging device for emulsion explosives, comprising a charging pipe, a lifting mechanism, a filling cylinder, a squeezing mechanism, and an air spacer insertion mechanism. The charging pipe is located at the top of the filling cylinder, and a one-way valve is located at the junction of the charging pipe and the filling cylinder. A squeezing mechanism is located at the top of the filling cylinder, and the charging pipe passes through the squeezing mechanism and communicates with the inside of the filling cylinder. The squeezing mechanism fills the emulsion explosive in the filling cylinder into the borehole through the charging pipe. An air spacer insertion mechanism is located on the side of the filling cylinder near the top, and an air spacer is inserted into the filling cylinder. A movable frame is located on the outer wall of the filling cylinder, and a lifting assembly is located between the movable frame and the filling cylinder.

[0005] Preferably, the filling cylinder is a cylindrical body; the air separator insertion mechanism includes a rotating transfer frame, an airbag supply component, and a pushing component. An insertion cavity is provided on the side of the filling cylinder, and a rotating transfer frame, which is cylindrical, is provided in the insertion cavity. The rotating transfer frame is driven by a motor to rotate. Multiple locking slots are opened on the outer wall of the rotating transfer frame, so that the outer wall of the rotating transfer frame contacts the inner wall of the insertion cavity. An embedding groove communicating with the insertion cavity is opened in the filling cylinder. A retractable top block is provided between every two locking slots. The top block can be inserted into / out of the embedding groove. An airbag supply component is connected to the side of the insertion cavity away from the filling cylinder, and a pushing component is provided at the end of the airbag supply component away from the insertion cavity.

[0006] Preferably, the airbag is inserted into the insertion slot, and each insertion slot has an arc-shaped adsorption plate at the bottom. A telescopic component is provided between the arc-shaped adsorption plate and the rotating transfer frame to push the arc-shaped adsorption plate out. The rotating transfer frame has a slot for the top block to extend into. Two connecting rods are hinged to the back of the top block, and a lifting rod is hinged to the two connecting rods. A sleeve is provided on the lifting rod, and the lifting rod moves up and down along the sleeve. A spring is sleeved on the lifting rod, and the two ends of the spring are installed on the lifting rod and the sleeve. A push cylinder is provided between the top and bottom of the insertion cavity. The lifting rod is pushed by the push cylinder, so that the top block extends into the insertion slot.

[0007] Preferably, the extrusion mechanism includes an extrusion plate and an extrusion cylinder. The top of the filling cylinder is provided with an extrusion cylinder with a piston rod pointing downwards. The extrusion plate is provided inside the filling cylinder and is connected to the extrusion cylinder.

[0008] Preferably, a support assembly is provided on the outer wall of the filling cylinder. The support assembly includes a swing rod, a sliding ring, and a pulley. A set of swing rods arranged in a circular array are hinged to the sliding ring. A pulley is installed on each swing rod. The sliding ring is sleeved on the outer wall of the filling cylinder. A circular rubber sealing plate is provided at the bottom of the filling cylinder. A circular ring is sleeved on the sliding ring. A pull rod is provided between the circular ring and the swing rod. A tension spring is provided between the circular ring and the sliding ring.

[0009] Preferably, a lifting cylinder is provided between the arc-shaped adsorption plate and the telescopic component, and the lifting cylinder realizes the raising and lowering of the arc-shaped adsorption plate.

[0010] A charging method based on an on-site charging device for emulsion explosives:

[0011] After the emulsion base and sensitizer are mixed, the filling cylinder is inserted into the borehole through the lifting component, while the support component enters the discharge hole. In this way, the filling cylinder is positioned in the center of the borehole through the support component.

[0012] The mixed emulsion explosive is loaded into the filling cylinder through the loading tube. When the filling cylinder is full, the emulsion explosive in the filling cylinder is lower than the bottom of the embedding groove. The top block leaves the embedding groove. At the same time, the arc-shaped adsorption plate adsorbs the airbag and pushes the airbag into the filling cylinder. The arc-shaped adsorption plate is lowered by the lifting cylinder, so that the airbag is inserted into the emulsion explosive.

[0013] As the arc-shaped adsorption plate loses negative pressure, it quickly retracts and returns to the slot. At the same time, the rotating transfer frame rotates, causing the top block to extend into the inner wall of the filling cylinder. Simultaneously, the extrusion plate presses downward, and the emulsion explosive already filled in the cylinder is poured into the borehole. At the same time, the filling cylinder is raised and lowered, thus realizing the on-site loading of emulsion explosive.

[0014] Compared with the prior art, the advantages of the present invention are: it facilitates rapid loading of explosives, and at the same time, it enables decoupled loading during the loading process, thereby improving blasting efficiency. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention.

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the air separator insertion mechanism of the present invention.

[0018] Figure 4 This is a cross-sectional view of the air separator insertion mechanism of the present invention.

[0019] Figure 5 This is a schematic diagram of the filling cylinder and support assembly of the present invention.

[0020] Among them, 1. Drug loading tube, 2. Lifting mechanism, 3. Filling cylinder, 4. Extrusion mechanism, 5. Extrusion plate, 6. Extrusion cylinder, 7. Air spacer insertion mechanism, 8. Rotary transfer frame, 9. Airbag supply assembly, 10. Pushing assembly, 11. Insertion cavity, 12. Insertion slot, 13. Embedding slot, 14. Top block, 15. Arc-shaped adsorption plate, 16. Telescopic assembly, 17. Connecting rod, 18. Lifting rod, 19. Sleeve, 20. Spring, 21. Push cylinder, 22. Moving frame, 23. Lifting assembly, 24. Support assembly, 25. Swing rod, 26. Sliding ring, 27. Pulley, 28. Circular ring, 29. Tension spring, 30. Pull rod. Implementation

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] like Figure 1-5As shown, an on-site loading device for emulsion explosives includes a loading pipe 1, a lifting mechanism 2, a filling cylinder 3, a squeezing mechanism 4, and an air gap inserting mechanism 7. The top of the filling cylinder 3 is sealed. The loading pipe 1 is installed at the top of the filling cylinder 3, and the loading pipe 1 passes through the top of the filling cylinder 3 and is interconnected with the loading pipe 3. A one-way valve is fixed at the joint between the emulsion explosive loading pipe 1 and the filling cylinder 3 via a flange (i.e., the emulsion explosive in the loading pipe 1 can enter the filling pipe; when the emulsion explosive in the filling pipe cannot enter the loading pipe 1, the loading pipe 1 is connected to the container holding the emulsion explosive via a pump). A squeezing mechanism is installed at the top of the filling cylinder 3. The compression mechanism 4 includes a compression plate 5 and a compression cylinder 6. The top of the filling cylinder 3 is fixed with a downward-facing piston rod to the compression cylinder 6 via bolts. The compression plate 5 is installed inside the filling cylinder 3 (its outer wall fits against the inner wall of the filling cylinder 3, and the compression plate 5 compresses the emulsion explosive inside the filling cylinder 3 downwards). The compression plate 5 and the compression cylinder 6 are connected by bolts. The charging tube 1 passes through the compression plate 5 to charge the filling cylinder 3. The charging tube 1 passes through the compression mechanism 4 and communicates with the inside of the filling cylinder 3. The compression mechanism 4 fills the emulsion explosive inside the filling cylinder 3 into the borehole through the charging tube. 3. An air spacer insertion mechanism 7 is fixed to the right side near the top by bolts. The air spacer is inserted into the filling cylinder 3 via the air spacer insertion mechanism 7. When the extrusion plate 5 presses downwards, the air spacer is filled into the borehole along with the emulsion explosive. Because the air spacer is close to the inner wall of the filling cylinder 3, it is also close to the inner wall of the borehole during filling, resulting in a better blasting effect. No manual operation is required. During filling, the extrusion plate 5 simultaneously presses downwards, thus increasing the filling efficiency. The pressure plate 5 compresses the emulsion explosive, preventing air pockets from forming between the emulsion explosives within the borehole. A movable frame 22 is installed on the outer wall of the filling cylinder 3, and a lifting assembly 23 is installed between the movable frame 22 and the filling cylinder 3. The movable frame 22 is a flat plate, on which a vertical cylinder is fixed by welding. The filling cylinder 3 is inserted into the vertical cylinder and moves up and down along the vertical cylinder. The lifting assembly 23 is fixed between the flat plate and the filling cylinder 3 by bolts. The lifting assembly 23 is a cylinder, and the cylinder moves up and down to allow the filling cylinder 3 to enter and exit the borehole.

[0023] The filling cylinder 3 is a circular vertical cylinder; the air separator insertion mechanism 7 includes a rotary transfer frame 8, an airbag supply assembly 9, and a pushing assembly 10. An insertion cavity 11 (which is a circular cylinder, with its outer wall welded to the outer wall of the filling cylinder 3) is provided on the side of the filling cylinder 3. The rotary transfer frame 8 (which is a cylindrical shell) is installed inside the insertion cavity 11. The rotary transfer frame 8 is cylindrical and rotates via a motor (the motor's shell is bolted to the bottom of the insertion cavity 11, and the motor's output shaft passes through the insertion cavity 11 and is welded to the rotary transfer frame 8; the motor is a stepper motor, which operates intermittently, rotating at the same angle each time to achieve station switching). Three insertion slots 12 are formed on the outer wall of the rotary transfer frame 8. The outer wall of the transport frame 8 contacts the inner wall of the insertion cavity 11. The right side wall of the filling cylinder 3 has an embedding groove 13 that communicates with the insertion cavity 11. A retractable top block 14 is provided between every two insertion grooves 12. The top block 14 can be inserted into / out of the embedding groove 13. An airbag supply assembly 9 is connected to the side of the insertion cavity 11 away from the filling cylinder 3 (that is, an airbag supply assembly 9 is connected to the right side wall of the insertion cavity 11). A pushing assembly 10 is provided at the end of the airbag supply assembly 9 away from the insertion cavity 11. The airbag supply assembly 9 is a guide groove. A notch that communicates with the guide groove is provided on the right side wall of the insertion cavity 11. The air separator enters the insertion cavity 11 through the guide groove. The pushing assembly 10 is a pushing plate driven by a cylinder. The pushing plate is connected to the piston rod of the cylinder by bolts. The pushing plate is embedded in the guide groove.

[0024] The airbag is inserted into the insertion slot 12 through the guide groove. At the same time, the rotating transfer frame 8 rotates, causing the insertion slot 12 to rotate. An arc-shaped adsorption plate 15 is embedded in the bottom of each insertion slot 12. A telescopic component 16 (which is a cylinder) is provided between the arc-shaped adsorption plate 15 and the rotating transfer frame 8. The cylinder body of the telescopic component 16 is embedded in the rotating transfer frame 8, and the piston rod of the telescopic component 16 is fastened to the arc-shaped adsorption plate 15 by bolts. Multiple negative pressure holes connected to a negative pressure pump are opened on the inner wall of the arc-shaped adsorption plate 15, which adsorb the outer wall of the airbag through the negative pressure holes. The telescopic component 16 pushes out the arc-shaped adsorption plate 15, which lifts the airbag into the filling cylinder 3. A groove for the top block 14 to extend into is opened on the outer wall of the rotating transfer frame 8. Two connecting rods 17 are hinged to the back of the top block 14, and lifting rods are hinged to the two connecting rods 17. 18 (Two connecting rods 17 are set vertically, and a lifting rod 18 is hinged to the other end of the two connecting rods 17. The lifting rod 18 is also located in the groove and the two lifting rods 18 are vertically coaxial.) Each lifting rod 18 is fitted with a sleeve 19. The lifting rod 18 moves up and down along the sleeve 19. The sleeve 19 is installed in the groove by welding. A spring 20 is fitted on the lifting rod 18 and the two ends of the spring 20 are installed on the lifting rod 18 and the sleeve 19 by welding. A push cylinder 21 is installed on the top and bottom outer walls of the insertion cavity 11 by screws. The lifting rod 18 is pushed by the push cylinder 21 (the push cylinder 21 is a cylinder). In this way, the top block 14 extends into the embedding groove 13. When the push cylinder 21 is pushed up, the two lifting rods 18 move closer to each other. In this way, the top block 14 is pushed outward and extends into the embedding groove 13, blocking the embedding groove 13.

[0025] A support assembly 24 is provided on the outer wall of the filling cylinder 3. The support assembly 24 includes a swing rod 25, a sliding ring 26, and a pulley 27. Four swing rods 25 are hinged to the sliding ring 26 in a circular array. A pulley 27 is installed on each swing rod 25 via a bearing. The sliding ring 26 is fitted onto the outer wall of the filling cylinder 3. A circular ring 28-shaped rubber sealing plate (the rubber sealing plate fits against the inner wall of the borehole) is installed at the bottom of the filling cylinder 3 by means of bolts. A circular ring 28 is fitted onto the sliding ring 26. A pull rod 30 is hinged between the circular ring 28 and the swing rod 25. A tension spring 29 is provided between the circular ring 28 and the sliding ring 26 (the tension spring 29 pulls the circular ring 28 downward, so that the swing rod 25 swings outward). The support assembly 24 positions the filling cylinder 3 at the center of the borehole. In this way, during filling, the filling spreads from the center to the surrounding area, so that the borehole is filled more completely.

[0026] A lifting cylinder is provided between the arc-shaped adsorption plate 15 and the telescopic component 16 (the cylinder body of the lifting cylinder is fixed to the top of the arc-shaped adsorption plate 15 by bolts, and the piston rod of the lifting cylinder is fixed to the piston of the telescopic component 16 by bolts). The lifting cylinder is used to lift the arc-shaped adsorption plate 15, so that the air bag is inserted into the filling cylinder 3.

[0027] A charging method based on an on-site charging device for emulsion explosives:

[0028] 1. After mixing the emulsion base with the sensitizer, the filling cylinder 3 is inserted into the borehole through the lifting component 23, while the support component 24 enters the discharge hole. In this way, the filling cylinder 3 is positioned at the center of the borehole through the support component 24.

[0029] 2. The mixed emulsion explosive is loaded into the filling cylinder 3 through the loading tube 1. When the filling cylinder 3 is full, the emulsion explosive in the filling cylinder 3 is lower than the bottom of the embedding groove 13. The top block 14 leaves the embedding groove 13. At the same time, the arc-shaped adsorption plate 15 adsorbs the air bag and pushes the air bag into the filling cylinder 3. The arc-shaped adsorption plate 15 is lowered by the lifting cylinder, so that the air bag is inserted into the emulsion explosive.

[0030] Third, the arc-shaped adsorption plate 15 loses negative pressure and quickly retreats and retracts into the slot 12. At the same time, the rotating transfer frame 8 rotates, so that the top block 14 extends into the inner wall of the filling cylinder 3. At the same time, the squeezing plate 5 presses down, and the emulsion explosive already in the filling cylinder 3 is poured into the borehole. At the same time, the filling cylinder 3 is raised and lowered, thus realizing the on-site loading of emulsion explosive.

Claims

1. A field charging device for emulsion explosives, comprising a charging pipe, a lifting mechanism, a filling cylinder, a compression mechanism, and an air gap inserting mechanism, wherein the charging pipe is provided at the top of the filling cylinder, and a one-way valve is provided at the junction of the emulsion explosive charging pipe and the filling cylinder, characterized in that, A compression mechanism is installed at the top of the filling cylinder. The charging tube passes through the compression mechanism and communicates with the inside of the filling cylinder. The compression mechanism fills the emulsion explosive in the filling cylinder into the borehole through the filling tube. An air spacer insertion mechanism is installed on the side of the filling cylinder near the top. The air spacer insertion mechanism inserts the air spacer into the filling cylinder. A movable frame is installed on the outer wall of the filling cylinder, and a lifting assembly is installed between the movable frame and the filling cylinder. The filling cylinder is a circular cylinder. The air spacer insertion mechanism includes a rotating transfer frame, an airbag supply assembly, and a pushing assembly. An insertion cavity is provided on the side, and a rotating transfer frame is provided inside the insertion cavity. The rotating transfer frame is cylindrical and is driven by a motor to rotate. Multiple insertion slots are opened on the outer wall of the rotating transfer frame, so that the outer wall of the rotating transfer frame contacts the inner wall of the insertion cavity. An embedding slot is opened inside the filling cylinder, which is connected to the insertion cavity. A retractable top block is provided between every two insertion slots. The top block can be inserted into / out of the embedding slot. An airbag supply component is connected to the side of the insertion cavity away from the filling cylinder. A pushing component is provided at the end of the airbag supply component away from the insertion cavity.

2. The on-site charging device for emulsion explosives according to claim 1, characterized in that, An airbag is inserted into a slot. Each slot has an arc-shaped suction plate at the bottom. A telescopic assembly is installed between the arc-shaped suction plate and the rotating transfer frame to push the arc-shaped suction plate out. The rotating transfer frame has a slot for the top block to extend into. Two connecting rods are hinged to the back of the top block, and a lifting rod is hinged to the two connecting rods. A sleeve is installed on the lifting rod, and the lifting rod moves up and down along the sleeve. A spring is fitted on the lifting rod, and the two ends of the spring are installed on the lifting rod and the sleeve. A push cylinder is installed between the top and bottom of the insertion cavity. The push cylinder pushes the lifting rod, so that the top block extends into the insertion slot.

3. The on-site charging device for emulsion explosives according to claim 2, characterized in that, The extrusion mechanism includes an extrusion plate and an extrusion cylinder. The top of the filling cylinder is equipped with an extrusion cylinder with a piston rod pointing downwards. The extrusion plate is installed inside the filling cylinder and is connected to the extrusion cylinder.

4. The on-site charging device for emulsion explosives according to claim 3, characterized in that, A support assembly is provided on the outer wall of the filling cylinder. The support assembly includes a swing rod, a sliding ring, and a pulley. A set of swing rods arranged in a circular array are hinged to the sliding ring. A pulley is installed on each swing rod. The sliding ring is fitted onto the outer wall of the filling cylinder. A circular rubber sealing plate is provided at the bottom of the filling cylinder. A circular ring is fitted onto the sliding ring. A pull rod is provided between the circular ring and the swing rod. A tension spring is provided between the circular ring and the sliding ring.

5. The on-site charging device for emulsion explosives according to claim 4, characterized in that, A lifting cylinder is installed between the arc-shaped adsorption plate and the telescopic component, which is used to raise and lower the arc-shaped adsorption plate.

6. A charging method for an emulsion explosive field charging device according to claim 5, characterized in that: After the emulsified base and sensitizer are mixed, the filling cylinder is inserted into the borehole through the lifting component, and at the same time the support component enters the borehole. In this way, the filling cylinder is positioned in the center of the borehole through the support component. The mixed emulsion explosive is loaded into the filling cylinder through the loading tube. When the filling cylinder is almost full, the emulsion explosive in the filling cylinder is lower than the bottom of the embedding groove, and the top block leaves the embedding groove. At the same time, the arc-shaped adsorption plate adsorbs the airbag and pushes the airbag into the filling cylinder. The arc-shaped adsorption plate is lowered by the lifting cylinder, so that the airbag is inserted into the emulsion explosive. As the arc-shaped adsorption plate loses negative pressure, it quickly retracts and returns to the slot. At the same time, the rotating transfer frame rotates, causing the top block to extend into the inner wall of the filling cylinder. Simultaneously, the extrusion plate presses downward, and the emulsion explosive already filled in the cylinder is poured into the borehole. At the same time, the filling cylinder is raised and lowered, thus realizing the on-site loading of emulsion explosive.

Images