Emulsion explosive oil-water mixing device
By designing an oil-water mixing device for emulsion explosives, and utilizing components such as crushing rollers, stirring blades, and dispersing discs, the problem of uneven mixing of oil and water phases was solved, thus achieving efficient production of emulsion explosives.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖南金聚能科技有限公司
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-19
AI Technical Summary
In the current production of emulsion explosives, the oil phase and the water phase are difficult to fully contact and disperse in a short time, resulting in uneven mixing, which affects the emulsification effect and explosive performance. At the same time, the large particle size of the water phase raw material leads to incomplete dissolution.
The system employs a design that includes a mixing tank, an aqueous phase tank, and an oil phase tank. It utilizes motor-driven crushing rollers and stirring blades to crush and shear the raw materials, combined with sieving through a filter screen. The centrifugal force of the dispersing disc forms fine droplets, increasing the contact area between the oil and water phases, and the mixing is accelerated through the synergistic effect of the scraper.
It achieves rapid and uniform mixing of oil and water phases, improves the emulsification effect and explosive performance of emulsion explosives, ensures complete dissolution of aqueous raw materials, and reduces the impact of undissolved particles.
Smart Images
Figure CN224377947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of emulsion explosives technology, and in particular to an oil-water mixing device for emulsion explosives. Background Technology
[0002] In the production process of emulsion explosives, the aqueous phase must first be prepared. Raw materials such as water, ammonium nitrate, and sodium nitrate are added to the aqueous phase tank and stirred to dissolve and form the aqueous phase. Then, raw materials such as emulsifiers and composite waxes are added to the oil phase tank and stirred to form the oil phase. The aqueous and oil phases are then extracted from their respective feed tanks, mixed, and transported to the emulsifier for further processing.
[0003] The existing oil phase and water phase often have difficulty in fully contacting and dispersing in a short time during the mixing process, resulting in uneven mixing, which in turn affects the emulsification effect and explosive performance of emulsion explosives; at the same time, the water phase raw materials in the water phase tank often have large particle sizes, which leads to incomplete dissolution in water, which also causes uneven mixing of water phase raw materials and oil phase raw materials. Utility Model Content
[0004] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this invention is to provide an oil-water mixing device for emulsion explosives, which promotes the initial dispersion of the oil and water phases, increases the contact area between the two phases, and thus accelerates the uniform mixing of the oil and water phases.
[0005] According to the present invention, an emulsion explosive oil-water mixing device includes a mixing tank, with an aqueous phase tank and an oil phase tank respectively provided at the top left and right ends of the mixing tank. A motor is fixed at the top center of the mixing tank, the aqueous phase tank and the oil phase tank, and a first rotating shaft is fixed at the rotating end of the motor.
[0006] A crushing frame is fixed to the inner wall of the aqueous phase tank. A pair of second rotating shafts are rotatably connected inside the crushing frame. A crushing roller located inside the crushing frame is fixed to the outer surface of the second rotating shaft. A gear away from the inside of the crushing frame is fixed to the outer surface of the second rotating shaft, and the two gears mesh with each other. A first helical gear is fixed to the outer surface of the first rotating shaft inside the mixing tank, and a second helical gear meshing with the first helical gear is fixed to the outer surface of the second rotating shaft.
[0007] Both the aqueous phase tank and the oil phase tank have nozzles fixed to their bottoms that are inserted into the mixing tank. A dispersion disc located below the nozzle is fixed to the outer surface of the first rotating shaft inside the mixing tank. Several dispersion holes are opened through the surface of the dispersion disc.
[0008] Preferably, several stirring blades are fixed on the outer surface of the first rotating shaft inside the aqueous phase tank and the oil phase tank, and a scraper is fixed on the outer surface of the first rotating shaft inside the mixing tank.
[0009] Preferably, a filter screen is fixed inside the lower part of the aqueous phase tank.
[0010] Preferably, control valves are provided at the bottom of the mixing tank, the aqueous phase tank, and the oil phase tank.
[0011] Preferably, the outer surfaces of the mixing tank, the aqueous phase tank, and the oil phase tank are all fixed with support frames.
[0012] Preferably, both the aqueous phase tank and the oil phase tank have inlets at their tops.
[0013] Preferably, the contact surfaces between the agitator and the inner wall of the mixing tank are provided with rubber scrapers.
[0014] The beneficial effects of this invention are as follows: the motor drives the crushing roller in the crushing frame to crush the raw material. At the same time, when the motor drives the first rotating shaft to rotate, the stirring blades shear and stir the aqueous solution to form a uniform aqueous solution. Combined with the secondary screening of the filter screen, it is ensured that there are no undissolved particles in the aqueous solution. The dispersion disk rotates at high speed with the first rotating shaft, and the raw material is thrown out from the dispersion hole by centrifugal force to form fine mist droplets, which promotes the initial dispersion of the oil and water phases and increases the contact area between the two phases. At the same time, the synergistic effect of the stirring blades and the scraper further enhances the hybrid power, thereby accelerating the uniform mixing of the oil and water phases. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the emulsion explosive oil-water mixing device proposed in this utility model.
[0016] Figure 2 This is a schematic diagram of the explosion structure of the emulsion explosive oil-water mixing device proposed in this utility model.
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the aqueous phase tank of the emulsion explosive oil-water mixing device proposed in this utility model.
[0018] Figure 4 This is a schematic diagram of the internal structure of the crushing frame of the emulsion explosive oil-water mixing device proposed in this utility model.
[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the oil phase tank in the emulsion explosive oil-water mixing device proposed in this utility model.
[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the mixing tank of the emulsion explosive oil-water mixing device proposed in this utility model.
[0021] Figure 7 This is a schematic diagram of the dispersion disc structure of the emulsion explosive oil-water mixing device proposed in this utility model.
[0022] In the diagram: 1. Mixing tank; 2. Aqueous phase tank; 3. Oil phase tank; 4. Motor; 5. First rotating shaft; 6. Crushing frame; 7. Second rotating shaft; 8. Crushing roller; 9. Gear; 10. First helical gear; 11. Second helical gear; 12. Nozzle; 13. Dispersion disc; 14. Stirring blades; 15. Filter screen; 16. Control valve; 17. Scraper; 18. Support frame; 19. Feed inlet; 20. Dispersion hole. Detailed Implementation
[0023] Reference Figure 1-7 An emulsion explosive oil-water mixing device includes a mixing tank 1. A water phase tank 2 and an oil phase tank 3 are respectively installed at the top left and right ends of the mixing tank 1. A motor 4 is fixed at the top center of the mixing tank 1, the water phase tank 2 and the oil phase tank 3. A first rotating shaft 5 is fixed at the rotating end of the motor 4. A motor 4 is fixed at the top center of the three, and the rotating end of the motor 4 is connected to the first rotating shaft 5.
[0024] A crushing frame 6 is fixed to the inner wall of the aqueous phase tank 2. A pair of second rotating shafts 7 are rotatably connected inside the crushing frame 6. Crushing rollers 8 located inside the crushing frame 6 are fixed to the outer surface of the second rotating shafts 7. Gears 9, located away from the interior of the crushing frame 6, are also fixed to the outer surface of the second rotating shafts 7, and the two gears 9 mesh with each other to ensure synchronous rotation. A first helical gear 10 is fixed to the outer surface of the first rotating shaft 5 inside the mixing tank 1, and a second helical gear 11 meshing with the first helical gear 10 is fixed to the outer surface of the second rotating shaft 7. The motor 4 drives the helical gears through the first rotating shaft 5. The helical gears mesh with the helical gears on the second rotating shafts 7, causing the second rotating shafts 7 to rotate at high speed. The meshing of the two gears 9 causes the two second rotating shafts 7 to rotate relative to each other, and the opposing rotation of the second rotating shafts 7 also causes the two crushing rollers 8 to rotate relative to each other. The crushing rollers 8 crush and pulverize large particles such as ammonium nitrate and sodium nitrate in the aqueous phase raw materials, ensuring they are fully dissolved in the water and preventing undissolved particles from affecting the subsequent mixing uniformity.
[0025] Both the aqueous phase tank 2 and the oil phase tank 3 have nozzles 12 fixed to their bottoms and inserted into the mixing tank 1. The outer surface of the first rotating shaft 5 inside the mixing tank 1 is fixed with a dispersion disk 13 located below the nozzle 12. Several dispersion holes 20 are opened through the surface of the dispersion disk 13. When the oil phase and the aqueous phase are sprayed into the mixing tank 1 through the nozzle 12, the dispersion disk 13 rotates at high speed with the first rotating shaft 5. The centrifugal force throws the raw materials out from the dispersion holes 20 to form fine droplets, which promotes the initial dispersion of the oil and water phases.
[0026] Several stirring blades 14 are fixed to the outer surface of the first rotating shaft 5 inside the aqueous phase tank 2 and the oil phase tank 3. The stirring blades 14 are evenly distributed along the circumference of the first rotating shaft 5. A scraper 17 is fixed to the outer surface of the first rotating shaft 5 inside the mixing tank 1. When the motor 4 drives the first rotating shaft 5 to rotate, the stirring blades 14 shear and stir the aqueous and oil phase raw materials to form a homogeneous aqueous and oil phase. The nozzles 12 at the bottom of the aqueous phase tank 2 and the oil phase tank 3 transport the aqueous and oil phases to the mixing tank 1. During the rotation, the scraper 17 mixes and stirs the oil and water phases, and scrapes off the raw materials adhering to the tank wall to avoid the accumulation of raw materials affecting the mixing effect and reduce the difficulty of cleaning.
[0027] A filter screen 15 is fixed at the bottom inside the aqueous phase tank 2. After stirring, the aqueous phase raw material is filtered through the filter screen 15 and then enters the nozzle 12. The filter screen 15 can intercept incompletely crushed particles, ensuring that the aqueous phase raw material entering the mixing tank 1 is a homogeneous solution.
[0028] The bottom of mixing tank 1, aqueous phase tank 2 and oil phase tank 3 are all equipped with control valves 16 to control the output of the mixture.
[0029] The outer surfaces of mixing tank 1, aqueous phase tank 2, and oil phase tank 3 are all fixed with support frames 18 to ensure the stability of the equipment during operation.
[0030] Both the aqueous phase tank 2 and the oil phase tank 3 have inlets 19 on their tops for easy addition of raw materials, and are equipped with sealing caps to prevent dust from spilling out.
[0031] Rubber scrapers are provided on the contact surfaces of the agitator 17 and the inner wall of the mixing tank 1. The rubber material avoids wear on the tank body caused by the metal scraper and extends the service life of the equipment.
[0032] When this device is in use, the aqueous raw material is added to the aqueous tank 2 through the feed port 19. The motor 4 drives the crushing roller 8 in the crushing frame 6 to crush the raw material. At the same time, when the motor 4 drives the first rotating shaft 5 to rotate, the stirring blades 14 shear and stir the aqueous solution to form a uniform aqueous solution, which is then filtered through the filter screen 15. Oil phase raw materials are added to oil phase tank 3 through feed inlet 19. At the same time, motor 4 at the top of oil phase tank 3 is started. Motor 4 drives the first rotating shaft 5 to rotate the stirring blades 14 to form a homogeneous oil phase at high speed. The nozzles 12 at the bottom of water phase tank 2 and oil phase tank 3 transport the oil and water phases to mixing tank 1. When the oil and water phases are sprayed into mixing tank 1 through nozzle 12, the dispersion disk 13 rotates at high speed with the first rotating shaft 5. The centrifugal force throws the raw materials out from the dispersion hole 20 to form fine mist droplets, which promotes the initial dispersion of the oil and water phases. At the same time, the first rotating shaft 5 drives the scraper 17 to rotate. During the rotation, the scraper 17 mixes and stirs the oil and water phases and scrapes off the raw materials adhering to the tank wall of mixing tank 1 to avoid the accumulation of raw materials affecting the mixing effect and reduce the difficulty of cleaning.
Claims
1. An emulsion explosive oil-water mixing device, characterized by: The mixture includes a mixing tank (1), and an aqueous phase tank (2) and an oil phase tank (3) are respectively provided at the top left and right ends of the mixing tank (1). A motor (4) is fixed at the top center of the mixing tank (1), the aqueous phase tank (2) and the oil phase tank (3). A first rotating shaft (5) is fixed at the rotating end of the motor (4). The inner wall of the aqueous phase tank (2) is fixed with a crushing frame (6), and a pair of second rotating shafts (7) are rotatably connected inside the crushing frame (6). The outer surface of the second rotating shaft (7) is fixed with a crushing roller (8) located inside the crushing frame (6). The outer surface of the second rotating shaft (7) is fixed with a gear (9) away from the inside of the crushing frame (6), and the two gears (9) mesh with each other. The outer surface of the first rotating shaft (5) inside the mixing tank (1) is fixed with a first helical gear (10), and the outer surface of the second rotating shaft (7) is fixed with a second helical gear (11) meshing with the first helical gear (10). The bottom of both the water phase tank (2) and the oil phase tank (3) is fixed with a nozzle (12) inserted into the mixing tank (1). The outer surface of the first rotating shaft (5) inside the mixing tank (1) is fixed with a dispersion disk (13) located below the nozzle (12). Several dispersion holes (20) are opened through the surface of the dispersion disk (13).
2. The emulsion explosive oil-water mixing device according to claim 1, characterized in that: Several stirring blades (14) are fixed on the outer surface of the first rotating shaft (5) inside the water phase tank (2) and the oil phase tank (3), and a scraper (17) is fixed on the outer surface of the first rotating shaft (5) inside the mixing tank (1).
3. The emulsion explosive oil-water mixing device according to claim 1, characterized in that: A filter screen (15) is fixed inside the lower part of the water phase tank (2).
4. The emulsion explosive oil-water mixing device according to claim 1, characterized in that: The bottom of the mixing tank (1), the aqueous phase tank (2) and the oil phase tank (3) are all equipped with control valves (16).
5. The emulsion explosive oil-water mixing device according to claim 1, characterized in that: The outer surfaces of the mixing tank (1), the aqueous phase tank (2), and the oil phase tank (3) are all fixed with support frames (18).
6. The emulsion explosive oil-water mixing device according to claim 1, characterized in that: Both the aqueous phase tank (2) and the oil phase tank (3) have inlets (19) on their tops.
7. The emulsion explosive oil-water mixing device according to claim 2, characterized in that: Rubber scrapers are provided on the contact surfaces of the stirring scraper (17) and the inner wall of the mixing tank (1).