Emulsion explosive emulsion preparation equipment

Abstract

This utility model discloses an emulsion preparation device for emulsified explosives, relating to the field of emulsified explosives technology. It includes a stirring drum with a rotating shaft at its center. A fixing seat is fixed to the outer surface of the rotating shaft. The fixing seat has slots at both ends of its top, into which locking blocks are inserted. Paddles are fixed to both ends of each locking block. This utility model significantly reduces maintenance and replacement time through the ability to quickly disassemble and install the paddles. The device allows for easy disassembly and installation of the paddles with simple pulling and pressing operations, reducing maintenance time from several hours to just a few minutes, effectively improving equipment utilization. Furthermore, the strong shearing force generated by the inclined paddles ensures uniform dispersion of microdroplets, reducing emulsification time and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of emulsion explosives technology, and in particular to an emulsion preparation device for emulsion explosives. Background Technology

[0002] Emulsion explosives are water-in-oil emulsion explosives that use emulsifiers to uniformly disperse droplets of oxidant salt aqueous solutions in a continuous oil-phase medium containing porous materials such as dispersed air bubbles or hollow glass microspheres. The production process of emulsion explosives consists of three steps: emulsification, concentration, and drying. During emulsification, fuel oil, emulsifiers, nitrogen, and other additives are added to a reaction vessel in a certain proportion, stirred, and heated to form a stable emulsion.

[0003] During the preparation of emulsion explosives, aqueous and oil phase materials tend to form adhering substances on the surface of the stirring blades. Over time, this accumulation can lead to clumping on the blade surface, affecting the shearing and mixing effect. Furthermore, the blades need to be disassembled periodically to accommodate formula changes and wear repairs. However, the currently commonly used bolt-fixed blade connection method requires the use of specialized tools to loosen multiple high-strength bolts one by one during a single disassembly, resulting in a time-consuming operation. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to propose an emulsion preparation device for emulsion explosives, which allows for the disassembly and installation of the blades through simple pulling and pressing operations, reducing maintenance time from several hours to just a few minutes and effectively improving equipment utilization.

[0005] The emulsion explosive emulsion preparation device according to this utility model includes a stirring drum. A rotating shaft is arranged at the center of the stirring drum. A fixed seat is fixed on the outer surface of the rotating shaft. The top left and right ends of the fixed seat are provided with slots. A locking block is inserted into the slot. A blade is fixed at both ends of the locking block. The left and right ends of the fixed seat and the locking block are provided with slots. A movable column is inserted into the slot. A fixed plate is slidably connected to the inside of the movable column. A spring is fixed inside the movable column, and the two ends of the spring abut against the inner wall of the fixed plate and the movable column, respectively. Fixed blocks are fixed to the upper and lower ends of the fixed plate and fixed to the inner wall of the slot. Guide grooves that cooperate with the fixed blocks are provided at the upper and lower ends of the movable column. A pull rod is fixed to the end of the movable column away from the fixed seat.

[0006] Preferably, a base plate is fixed to the outer surface of the mixing drum, a guide plate is fixed to the top right side of the base plate, a moving rod is slidably connected inside the guide plate, a second motor is fixed to the bottom right side of the base plate, and a lead screw that is threadedly connected to the moving rod is fixed to the rotating end of the second motor.

[0007] Preferably, a support plate is fixed to the top of the movable rod, and a first motor is fixed to the top of the support plate, with the rotating end of the first motor fixed to the top of the rotating shaft.

[0008] Preferably, a heating plate is fitted onto the outer surface of the stirring cylinder.

[0009] Preferably, support legs are fixed at all four corners of the bottom of the base plate.

[0010] Preferably, a discharge pipe is fixed at the bottom center of the mixing drum, and a pneumatic control valve is provided inside the discharge pipe.

[0011] Preferably, the blades are inclined at 15° to 45° around the fixed base.

[0012] Preferably, the end of the movable column furthest from the tie rod is arc-shaped.

[0013] The beneficial effects of this utility model are:

[0014] 1. The quick disassembly and installation of the blades significantly reduces maintenance and replacement time. This device allows for blade removal and installation with simple pulling and pressing operations, reducing maintenance time from hours to minutes and effectively improving equipment utilization. Secondly, the strong shearing force generated by the tilted blades ensures uniform dispersion of microdroplets, reducing emulsification time and improving production efficiency.

[0015] 2. By starting the second motor, the moving rod and support plate are moved, moving the rotating shaft, fixed seat, and impeller away from the inside of the mixing drum, facilitating the cleaning of the inner wall. This design avoids the cumbersome process of disassembling the entire mixing device for cleaning, as required by traditional devices, saving time and labor. It also prevents equipment damage caused by residue accumulation, extending the service life of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the emulsion preparation device for emulsified explosives proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the explosion structure of the emulsion explosive emulsion making device proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the fixed base structure of the emulsion explosive emulsion making device proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed seat of the emulsion explosive emulsion making device proposed in this utility model.

[0020] Figure 5This is a schematic diagram of the exploded structure of the fixed seat of the emulsion explosive emulsion making device proposed in this utility model.

[0021] Figure 6 This is a schematic diagram of the guide plate structure of the emulsion preparation device for emulsified explosives proposed in this utility model.

[0022] In the diagram: 1. Base plate; 2. Mixing drum; 3. Support plate; 4. First motor; 5. Rotating shaft; 6. Fixed seat; 7. Clamping block; 8. Paddle; 9. Slot; 10. Moving column; 11. Fixed plate; 12. Spring; 13. Fixed block; 14. Guide groove; 15. Pull rod; 16. Clamping slot; 17. Guide plate; 18. Moving rod; 19. Second motor; 20. Lead screw; 21. Heating plate; 22. Support leg; 23. Discharge pipe. Detailed Implementation

[0023] Reference Figure 1-6 An emulsification explosive emulsion preparation device includes a stirring drum 2. A rotating shaft 5 is set at the center of the stirring drum 2. A fixed seat 6 is fixed on the outer surface of the rotating shaft 5. The top left and right ends of the fixed seat 6 are provided with slots 16. A locking block 7 is inserted into the slot 16. A blade 8 is fixed at both ends of the locking block 7. The left and right ends of the fixed seat 6 and the locking block 7 are provided with slot holes 9. A moving column 10 is inserted into the slot hole 9. A fixed plate 11 is slidably connected to the inside of the moving column 10. A spring 12 is fixed inside the moving column 10, and the two ends of the spring 12 abut against the inner wall of the fixed plate 11 and the moving column 10 respectively. The upper and lower ends of the fixed plate 11 are fixedly connected with fixing blocks 13 that are fixed to the inner wall of the slot hole 9. The upper and lower ends of the moving column 10 are provided with guide grooves 14 that cooperate with the fixing blocks 13. A pull rod 15 is fixed to the end of the moving column 10 away from the fixed seat 6. Pulling the lever 15 moves the moving column 10. Since the fixing plate 11 is fixed to the inner wall of the slot 9 by the fixing block 13, the moving column 10 compresses the spring 12 as it moves. At the same time, the moving column 10 moves away from the locking block 7. At this time, the locking block 7 can be lifted to complete the disassembly. The end of the moving column 10 away from the lever 15 is arc-shaped. Because the end of the lever 15 is arc-shaped, when installing the locking block 7 and the blade 8, it is only necessary to place the locking block 7 inside the slot 16 and press it down, so that the locking block 7 squeezes the moving column 10 and moves it. At the same time, the spring 12 is compressed. When the locking block 7 is fully placed inside the slot 16, the moving column 10 is driven to insert into the slot 9 inside the locking block 7 under the action of the spring 12, thereby completing the quick fixation of the locking block 7.

[0024] A base plate 1 is fixed to the outer surface of the mixing drum 2. A guide plate 17 is fixed to the top right side of the base plate 1. A moving rod 18 is slidably connected inside the guide plate 17. A second motor 19 is fixed to the bottom right side of the base plate 1. A lead screw 20, which is threadedly connected to the moving rod 18, is fixed to the rotating end of the second motor 19. By starting the second motor 19, the lead screw 20 is driven to rotate, which drives the moving rod 18 and the support plate 3 to slide along the guide plate 17, so that the rotating shaft 5, the fixed seat 6 and the blade 8 are moved out of the mixing drum 2 as a whole, thereby facilitating the cleaning of the inner wall of the mixing drum 2.

[0025] A support plate 3 is fixed to the top of the moving rod 18, and a first motor 4 is fixed to the top of the support plate 3. The rotating end of the first motor 4 is fixed to the top of the rotating shaft 5. The first motor 4 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives the fixed seat 6 and the blade 8 to rotate to stir the emulsion inside the stirring drum 2.

[0026] A heating plate 21 is fitted on the outer surface of the mixing drum 2. The heating plate 21 maintains a constant temperature inside the mixing drum 2 through an external temperature control system to ensure the stability of the emulsion.

[0027] Support legs 22 are fixed at the four corners of the bottom of the base plate 1.

[0028] A discharge pipe 23 is fixed at the bottom center of the mixing drum 2. The discharge pipe 23 is equipped with a pneumatic control valve to support switching between continuous and batch production modes.

[0029] The blades 8 are inclined at 15° to 45° around the fixed base 6, which can form a three-dimensional shear flow field and enhance the mixing effect of water phase and oil phase materials.

[0030] In the preparation of emulsion explosives, the mixing materials are first added to the mixing drum 2 according to a predetermined ratio. The first motor 4 is started, its rotating end fixed to the top of the rotating shaft 5, driving the rotating shaft 5, the fixed seat 6, and the impeller 8 to rotate together, stirring the emulsion inside the mixing drum 2. During stirring, the inclined impeller 8 forms a three-dimensional shear flow field, ensuring thorough mixing of the aqueous and oil phases and improving the emulsification effect. Simultaneously, the heating plate 21 maintains a constant temperature inside the mixing drum 2. After the emulsion explosives are prepared, the inner wall of the mixing drum 2 needs to be cleaned to remove residual emulsion and any adhering substances. The second motor 19 is started, and the rotation of the lead screw 20 moves the moving rod 18 and the support plate 3, moving the rotating shaft 5, the fixed seat 6, and the impeller 8 away from the interior of the mixing drum 2, thus facilitating the cleaning of the inner wall of the mixing drum 2. At the same time, check whether the blade 8 needs cleaning and maintenance. If disassembly is required, pull the lever 15 to move the moving column 10. Since the fixed plate 11 is fixed to the inner wall of the slot 9 by the fixed block 13, the moving column 10 compresses the spring 12 as it moves. At the same time, the moving column 10 moves away from the locking block 7. At this time, disassembly can be completed by lifting the locking block 7. Regular cleaning and maintenance can extend the service life of the device and ensure that it is always in good working condition.

Claims

1. An emulsion explosive preparation device characterized by comprising: The system includes a stirring drum (2), with a rotating shaft (5) at its center. A fixed base (6) is fixed to the outer surface of the rotating shaft (5). The fixed base (6) has slots (16) at both ends of its top. A locking block (7) is inserted into each slot (16). Paddles (8) are fixed to both ends of each locking block (7). The fixed base (6) and the locking block (7) each have slots (9). A moving column (10) is inserted into each slot (9). The movable column (10) is internally slidably connected to a fixed plate (11), and a spring (12) is fixed inside the movable column (10). The two ends of the spring (12) abut against the fixed plate (11) and the inner wall of the movable column (10) respectively. The upper and lower ends of the fixed plate (11) are fixedly connected to a fixed block (13) that is fixed to the inner wall of the slot (9). The upper and lower ends of the movable column (10) are provided with guide grooves (14) that cooperate with the fixed block (13). A pull rod (15) is fixed to the end of the movable column (10) away from the fixed seat (6).

2. The emulsion explosive preparation device according to claim 1, characterized by: A base plate (1) is fixed to the outer surface of the stirring drum (2). A guide plate (17) is fixed to the top right side of the base plate (1). A moving rod (18) is slidably connected inside the guide plate (17). A second motor (19) is fixed to the bottom right side of the base plate (1). A lead screw (20) that is threadedly connected to the moving rod (18) is fixed to the rotating end of the second motor (19).

3. The emulsion explosive preparation device according to claim 2, characterized by: The top of the moving rod (18) is fixed with a support plate (3), and the top of the support plate (3) is fixed with a first motor (4). The rotating end of the first motor (4) is fixed to the top of the rotating shaft (5).

4. The emulsion explosive preparation device according to claim 1, characterized by: A heating plate (21) is fitted on the outer surface of the stirring cylinder (2).

5. The emulsion explosive preparation device according to claim 2, characterized by: The bottom of the base plate (1) is fixed with support legs (22) at each of the four corners.

6. The emulsion explosive preparation device according to claim 1, characterized by: The bottom center of the mixing drum (2) is fixed with a discharge pipe (23), and a pneumatic control valve is provided inside the discharge pipe (23).

7. The emulsion explosive manufacturing device according to claim 1, characterized by: The blade (8) is inclined at 15° to 45° around the fixed base (6).

8. The emulsion explosive manufacturing device according to claim 1, characterized by: The end of the movable column (10) away from the pull rod (15) is arc-shaped.

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