A conveying and crushing device for high-diffusivity expanded ammonium nitrate explosive

Abstract

The application discloses a kind of conveying and pulverizing device of high flowability puffed ammonium nitrate explosive, it is related to high flowability puffed ammonium nitrate explosive technical field, including round frame, four through holes are set in the outer side edge of the round frame, fixed tube is fixedly connected in the through hole cavity, by the mutual cooperation between first motor, crushing blade, support frame, connecting barrel and other structures, high flowability puffed ammonium nitrate explosive can be realized by movable pipe and fixed tube into the inside of round frame, first motor is crushed to high flowability puffed ammonium nitrate explosive by crushing blade, in the crushing process, movable pipe and fixed tube are sealed using connecting disc and limiting disc, so that the crushing effect of high flowability puffed ammonium nitrate explosive can be improved more, if multiple devices are connected together, the devices are connected by movable pipe, after high flowability puffed ammonium nitrate explosive is crushed once, further crushing is carried out in another device by adjacent movable pipe and screw rod.

Description

Technical Field

[0001] This invention relates to the field of high-flowability expanded ammonium nitrate explosives, specifically to a conveying and crushing device for high-flowability expanded ammonium nitrate explosives. Background Technology

[0002] Ammonium nitrate explosive is a powdered explosive mechanical mixture and one of the most widely used industrial explosives. It has moderate power and a certain degree of sensitivity. It is hygroscopic and prone to caking. Its sensitivity and power decrease significantly when it gets damp, and it also produces toxic gas. It can explode under high temperature, high pressure and in the presence of oxidizable substances. Safety regulations must be strictly followed in its production, storage, transportation and use.

[0003] However, existing high-flowability expanded ammonium nitrate explosives have some problems in the crushing and conveying process. The existing high-flowability expanded ammonium nitrate explosives have poor flexibility in the crushing and conveying process, making it inconvenient to freely adjust the feeding and discharging positions. At the same time, the applicable range of the device is narrow, and it is not convenient to adjust the shape of the device according to the working environment. When the device is crushing high-flowability expanded ammonium nitrate explosives, if the crushing effect of the current device is not as expected, it is necessary to repeatedly take it out and put it back into the device for crushing again. This operation may increase the workload of the staff. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a conveying and crushing device for highly dispersible expanded ammonium nitrate explosive, comprising a circular frame, four through holes on the outer edge of the circular frame, each through hole having a fixed tube fixedly connected to its inner cavity, a first motor on the front side of the circular frame, a first transmission rod fixedly connected to the power output shaft of the first motor, the rear end of the first transmission rod penetrating the front side of the circular frame and inserted into the rear side of the inner cavity of the circular frame, a plurality of crushing blades fixedly connected to the outer edge of the first transmission rod, four connecting cylinders fixedly connected to the front and rear sides of the circular frame, and support frames on the front and rear sides of the circular frame, the end of the support frame near the circular frame being located in the inner cavity of an adjacent connecting cylinder, a first magnet fixedly connected to the inner cavity of each connecting cylinder, and a groove on the end of the support frame near the circular frame, the inner cavity of each groove having a second magnet fixedly connected to it, the adjacent first magnet and second magnet being fitted together, and a conveying mechanism on the outer edge of the circular frame.

[0005] Preferably, the conveying mechanism includes four movable tubes arranged in a circular array around the center of the circular frame. Each fixed tube has a first annular groove on the side of its inner cavity away from the circular frame, and each first annular groove has an internal thread. Each movable tube has a threaded tube fixedly connected to its end near the circular frame, with the threaded tubes threaded onto adjacent internal threads. Each fixed tube has a second motor at its front side, and the power output shaft of the second motor is fixedly connected to a second transmission rod. The rear end of the second transmission rod passes through the front side of the fixed tube and extends into the inner cavity of the fixed tube. Each rear end of the second transmission rod is fixedly connected to a first bevel gear. The first bevel gear has a first bevel gear on its side away from the circular frame. The device is equipped with a second bevel gear. The outer edges of the adjacent first and second bevel gears are fitted with a protective cover. The protective cover has a connecting hole on the side away from the circular frame. The second bevel gear is fixedly connected to a connecting rod on the side away from the circular frame. The end of the connecting rod away from the second bevel gear passes through the adjacent connecting hole. The outer edge of the connecting rod is fixedly connected to two protruding plates. The inner cavity of the movable tube is equipped with a spiral rod. The end of the spiral rod near the circular frame has a blind hole. The inner wall of the blind hole has two connecting grooves. The end of the connecting rod away from the second bevel gear extends into the inner cavity of the adjacent blind hole. The protruding plate is located in the inner cavity of the adjacent connecting groove.

[0006] Preferably, four fixing blocks are fixedly connected to the outer edge of the spiral rod near the circular frame, and a fixing ring is fitted on the outer edge of the spiral rod near the circular frame. A second annular groove is opened on the inner wall of the fixing ring. The four fixing blocks are located in the inner cavity of adjacent second annular grooves. Four limiting rods are fixedly connected to the outer edge of the fixing ring. The end of the limiting rod away from the fixing ring is fixedly connected to the inner wall of the adjacent movable tube.

[0007] Preferably, the rear support frame has a threaded hole at the end away from the circular frame, and the front support frame has a threaded rod inserted at the end away from the circular frame. Four handles are fixedly connected to the outer edge of the threaded rod near the front side, and the threaded rod is threaded into the inner cavity of the adjacent threaded hole.

[0008] Preferably, the circular frame is provided with four limiting discs on the rear side, and two second elastic ropes are fixedly connected to the outer edge of each limiting disc. The end of the second elastic rope away from the limiting disc is fixedly connected to the outer edge of the circular frame.

[0009] Preferably, the end of each movable tube away from the circular frame is fitted with a connecting plate, and two first elastic ropes are fixedly connected to the outer edge of each connecting plate. The end of each first elastic rope away from the connecting plate is fixedly connected to the outer edge of the adjacent movable tube.

[0010] Preferably, the support frame is fixedly connected to casters near the left and right sides at the bottom.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This invention, through the cooperation of structures such as the first motor, crushing blades, support frame, and connecting cylinder, enables highly dispersible expanded ammonium nitrate explosive to enter the interior of a circular frame through a movable tube and a fixed tube. The first motor crushes the highly dispersible expanded ammonium nitrate explosive through the crushing blades. During the crushing process, the movable tube and fixed tube are sealed using a connecting plate and a limiting plate, thereby further improving the crushing effect of the highly dispersible expanded ammonium nitrate explosive. If multiple devices are connected together, the devices are closely connected through movable tubes. After the highly dispersible expanded ammonium nitrate explosive is crushed once, it enters another device through an adjacent movable tube and a screw rod for further crushing.

[0013] Through the cooperation of structures such as the movable tube, the second motor, the screw rod, and the protective cover, the movable tube can be installed on the fixed tube through a threaded tube. The connecting rod and the convex plate enter the groove at one end of the screw rod. The second motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the connecting rod and the convex plate to rotate, and the convex plate drives the screw rod to rotate. The screw rod can then discharge and transport the crushed, highly dispersible expanded ammonium nitrate explosive, improving the conveying efficiency of the device. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention;

[0015] Figure 2 This is a diagram showing the disassembly and working state of the active tube of the present invention;

[0016] Figure 3 This is a schematic diagram of the component support frame structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the circular frame structure of the component of the present invention;

[0018] Figure 5 This is a schematic diagram of the limiting disk structure of the component of the present invention;

[0019] Figure 6 This is an exploded view of the movable tube of the component of the present invention;

[0020] Figure 7 This is a schematic diagram of the protective cover structure of the component of the present invention;

[0021] Figure 8 This is a schematic diagram of the screw rod structure of the component of the present invention;

[0022] Figure 9 This is a schematic diagram of the second motor structure of the component of the present invention;

[0023] Figure 10 This is a schematic diagram of the first motor structure of the component of the present invention;

[0024] Figure 11 This is a schematic diagram of the structure of the first magnet in the component of the present invention;

[0025] Figure 12 This is a schematic diagram of the component fixing block structure of the present invention;

[0026] Figure 13 This is a schematic diagram of the fixing ring structure of the component of the present invention;

[0027] Figure 14 for Figure 3 Enlarged view of point A in the middle;

[0028] Figure 15 for Figure 3 Enlarged view of section B in the middle.

[0029] The following are the labels in the diagram: 1. Circular frame; 2. Fixed tube; 3. Movable tube; 4. First motor; 5. First transmission rod; 6. Crushing blade; 7. Connecting cylinder; 8. Support frame; 9. Connecting disc; 10. First elastic rope; 11. Limiting disc; 12. Second elastic rope; 13. Threaded tube; 14. Helical rod; 15. Protective cover; 16. Second motor; 17. Second transmission rod; 18. First bevel gear; 19. Second bevel gear; 20. Connecting rod; 21. Protruding plate; 22. Fixing ring; 23. First magnet; 24. Fixing block; 25. Limiting rod; 26. Threaded rod; 27. Handle; 28. Caster wheel; 29. ​​Second magnet. Detailed Implementation

[0030] Please see Figure 1-15 The present invention provides a technical solution:

[0031] Example 1:

[0032] A conveying and crushing device for highly dispersible expanded ammonium nitrate explosive includes a circular frame 1. Four through holes are formed on the outer edge of the circular frame 1, and a fixed pipe 2 is fixedly connected to the inner cavity of each through hole. A first motor 4 is located on the front side of the circular frame 1. A first transmission rod 5 is fixedly connected to the power output shaft of the first motor 4. The rear end of the first transmission rod 5 passes through the front side of the circular frame 1 and is inserted into the rear side of the inner cavity of the circular frame 1. Several crushing blades 6 are fixedly connected to the outer edge of the first transmission rod 5. Four connecting cylinders 7 are fixedly connected to both the front and rear sides of the circular frame 1. Support frames 8 are provided on both the front and rear sides of the circular frame 1. The end of the support frame 8 closest to the circular frame 1 is located in the inner cavity of the adjacent connecting cylinder 7. A first magnet 23 is fixedly connected to the inner cavity of each connecting cylinder 7. A groove is formed on the end of the support frame 8 closest to the circular frame 1. Each inner cavity is fixedly connected with a second magnet 29. The adjacent first magnet 23 and second magnet 29 are fitted together. A conveying mechanism is provided on the outer edge of the circular frame 1. The end of the rear support frame 8 away from the circular frame 1 is provided with a threaded hole. The end of the front support frame 8 away from the circular frame 1 is provided with a threaded rod 26. Four handles 27 are fixedly connected to the outer edge of the threaded rod 26 near the front. The threaded rod 26 is threaded into the inner cavity of the adjacent threaded hole. Universal wheels 28 are fixedly connected to the bottom of the support frame 8 near the left and right sides. Four limiting discs 11 are provided on the rear side of the circular frame 1. Two second elastic ropes 12 are fixedly connected to the outer edge of each limiting disc 11. The end of the second elastic rope 12 away from the limiting disc 11 is fixedly connected to the outer edge of the circular frame 1.

[0033] Highly dispersible expanded ammonium nitrate explosive enters the circular frame 1 through the movable tube 3 and the fixed tube 2. The first motor 4 crushes the highly dispersible expanded ammonium nitrate explosive through the crushing blades 6. During the crushing process, the movable tube 3 and the fixed tube 2 are sealed by the connecting plate 9 and the limiting plate 11, which further improves the crushing effect of the highly dispersible expanded ammonium nitrate explosive. If multiple devices are connected together, the devices are connected by the movable tube 3. After the highly dispersible expanded ammonium nitrate explosive is crushed once, it enters another device through the adjacent movable tube 3 and the screw rod 14 for further crushing.

[0034] Example 2:

[0035] The conveying mechanism includes four movable tubes 3, arranged in a circular array around the center of the circular frame 1. Each fixed tube 2 has a first annular groove on the side of its inner cavity away from the circular frame 1, and each groove has an internal thread. Each movable tube 3 has a threaded tube 13 fixedly connected to its end near the circular frame 1, with the threaded tube 13 threaded to adjacent internal threads. Each fixed tube 2 has a second motor 16 on its front side, with a second transmission rod 17 fixedly connected to its power output shaft. The rear end of the second transmission rod 17 passes through the front side of the fixed tube 2 and extends into its inner cavity. Each second transmission rod 17 has a first bevel gear 18 fixedly connected to its rear end, and a second bevel gear 18 meshes with a second... The outer edges of the bevel gear 19, the adjacent first bevel gear 18 and the second bevel gear 19 are fitted with a protective cover 15. The protective cover 15 has a connecting hole on the side away from the circular frame 1. The side of the second bevel gear 19 away from the circular frame 1 is fixedly connected with a connecting rod 20. The end of the connecting rod 20 away from the second bevel gear 19 passes through the adjacent connecting hole. The outer edge of the connecting rod 20 is fixedly connected with two protruding plates 21. The inner cavity of the movable tube 3 is provided with a spiral rod 14. The end of the spiral rod 14 near the circular frame 1 is provided with a blind hole. The inner wall of the blind hole is provided with two connecting grooves. The end of the connecting rod 20 away from the second bevel gear 19 extends into the inner cavity of the adjacent blind hole. The protruding plate 21 is located in the inner cavity of the adjacent connecting groove.

[0036] Four fixing blocks 24 are fixedly connected to the outer edge of the spiral rod 14 near the circular frame 1. A fixing ring 22 is fitted on the outer edge of the spiral rod 14 near the circular frame 1. A second annular groove is opened on the inner wall of the fixing ring 22. The four fixing blocks 24 are located in the inner cavity of the adjacent second annular groove. Four limiting rods 25 are fixedly connected to the outer edge of the fixing ring 22. The end of the limiting rod 25 away from the fixing ring 22 is fixedly connected to the inner wall of the adjacent movable tube 3. A connecting plate 9 is attached to the end of the movable tube 3 away from the circular frame 1. Two first elastic ropes 10 are fixedly connected to the outer edge of the connecting plate 9. The end of the first elastic rope 10 away from the connecting plate 9 is fixedly connected to the outer edge of the adjacent movable tube 3.

[0037] The movable tube 3 can be installed on the fixed tube 2 through the threaded tube 13. The connecting rod 20 and the convex plate 21 enter the groove at one end of the screw rod 14. The second motor 16 drives the first bevel gear 18 to rotate. The first bevel gear 18 drives the second bevel gear 19 to rotate. The second bevel gear 19 drives the connecting rod 20 and the convex plate 21 to rotate. The convex plate 21 drives the screw rod 14 to rotate. The screw rod 14 can then discharge and transport the crushed high-dispersion expanded ammonium nitrate explosive, improving the conveying efficiency of the device.

[0038] Working principle: Before the device starts working, the operator installs or disassembles the movable tube 3 according to the actual operation requirements. When installing the movable tube 3, first align the groove on the spiral rod 14 inside the movable tube 3 with the connecting rod 20 and the protruding plate 21, and then rotate the movable tube 3. The movable tube 3 drives the threaded tube 13 to rotate, rotating the threaded tube 13 into the fixed tube 2, thus installing the movable tube 3. When disassembling the movable tube 3, rotate the movable tube 3 and remove the threaded tube 13 from the fixed tube 2. After the movable tube 3 is disassembled, the exposed opening of the fixed tube 2 needs to be covered to prevent the highly dispersible expanded ammonium nitrate explosive from leaking out. The operator moves the limiting plate 11, which drives the second elastic rope 12 to stretch, placing the limiting plate 11 at one end of the fixed tube 2 to seal it.

[0039] When the device starts working, the operator selectively pours the highly dispersible expanded ammonium nitrate explosive into any of the movable tubes 3 except the lower movable tube 3. The adjacent second motor 16 is then started. The adjacent second motor 16 drives the adjacent second transmission rod 17 to rotate. The second transmission rod 17 drives the first bevel gear 18 to rotate. The first bevel gear 18 drives the second bevel gear 19 to rotate. The second bevel gear 19 drives the connecting rod 20 to rotate. The connecting rod 20 drives the convex plate 21 to rotate. The convex plate 21 drives the spiral rod 14 to rotate. The spiral rod 14 drives the fixed block 24 to rotate. The spiral rod 14 conveys the highly dispersible expanded ammonium nitrate explosive into the circular frame 1 in advance. The first motor 4 is started, which drives the first transmission rod 5 to rotate. The first transmission rod 5 drives the crushing blade 6 to rotate, and the crushing blade 6 crushes the highly dispersible expanded ammonium nitrate explosive. If the current device has achieved the desired crushing effect on the highly dispersible expanded ammonium nitrate explosive, the second motor 16 below is started. The second motor 16 drives the second transmission rod 17 below to rotate, which in turn drives the adjacent first bevel gear 18 to rotate. The first bevel gear 18 drives the second bevel gear 19 to rotate, which in turn drives the adjacent connecting rod 20 and the convex plate 21 to rotate. The convex plate 21 drives the lower spiral rod 14 to rotate, and the lower spiral rod 14 drives the highly dispersible expanded ammonium nitrate explosive to... If the current device does not achieve the desired crushing effect on the highly dispersible expanded ammonium nitrate explosive, first place the lower connecting plate 9 at the bottom of the lower movable tube 3, stretch the first elastic rope 10, and then start the lower second motor 16 to transport the highly dispersible expanded ammonium nitrate explosive into the lower movable tube 3. At this point, the highly dispersible expanded ammonium nitrate explosive is no longer discharged. Instead, turn the handle 27, which drives the threaded rod 26 to rotate. The threaded rod 26 is gradually removed from the rear support frame 8, and the front and rear support frames 8 are moved out of the surface of the circular frame 1. The circular frame 1 is then rotated 90 degrees by external equipment, and the movable tube 3, which was originally located at the bottom, is rotated to the right side of the device. The support frame 8 is then reinstalled on the surface of the circular frame 1. Next, take out another device and align the movable tube 3 on the left side of the other device with the movable tube 3 on the right side of the device containing the highly dispersible expanded ammonium nitrate explosive. Start the second motor 16 on the movable tube 3 on the right side of the device containing the highly dispersible expanded ammonium nitrate explosive. The second motor 16 drives the second transmission rod 17 to rotate. The second transmission rod 17 drives the adjacent first bevel gear 18 to rotate. The first bevel gear 18 drives the second bevel gear 19 to rotate. The second bevel gear 19 drives the adjacent connecting rod 20 and the convex plate 21 to rotate. The convex plate 21 drives the spiral rod 14 to rotate. The spiral rod 14 then transports the first-stage highly dispersible expanded ammonium nitrate explosive to the movable tube 3 on the left side of the other device for further crushing.

Claims

1. A conveying and crushing device for highly dispersible expanded ammonium nitrate explosive, comprising a circular frame (1), characterized in that: The outer edge of the circular frame (1) has four through holes, and each through hole is fixedly connected to a fixed tube (2). A first motor (4) is provided on the front side of the circular frame (1). The power output shaft of the first motor (4) is fixedly connected to a first transmission rod (5). The rear end of the first transmission rod (5) passes through the front side of the circular frame (1) and is inserted into the rear side of the inner cavity of the circular frame (1). Several crushing blades (6) are fixedly connected to the outer edge of the first transmission rod (5). Four connecting cylinders are fixedly connected to both the front and rear sides of the circular frame (1). 7) The circular frame (1) is provided with support frames (8) on both the front and rear sides. The end of the support frame (8) near the circular frame (1) is located in the inner cavity of the adjacent connecting cylinder (7). The inner cavity of the connecting cylinder (7) is fixedly connected with a first magnet (23). The end of the support frame (8) near the circular frame (1) is provided with a groove. The inner cavity of the groove is fixedly connected with a second magnet (29). The adjacent first magnet (23) and second magnet (29) are fitted together. The outer edge of the circular frame (1) is provided with a conveying mechanism. The conveying mechanism includes four movable tubes (3), which are arranged in a circular array around the center of the circular frame (1). Each fixed tube (2) has a first annular groove on the side away from the circular frame (1), and an internal thread is formed within each of these grooves. Each movable tube (3) near the circular frame (1) is fixedly connected to a threaded tube (13), which is threaded onto an adjacent internal thread. Each fixed tube (2) has a second motor (16) on its front side, and a second transmission rod (17) is fixedly connected to the power output shaft of the second motor (16). The rear end of the second transmission rod (17) passes through the front side of the fixed tube (2) and extends into the inner cavity of the fixed tube (2). Each rear end of the second transmission rod (17) is fixedly connected to a first bevel gear (18), which meshes with a first bevel gear on the side away from the circular frame (1). Two bevel gears (19), the outer edges of the adjacent first bevel gear (18) and second bevel gear (19) are fitted with a protective cover (15), the protective cover (15) is provided with a connecting hole on the side away from the circular frame (1), the second bevel gear (19) is fixedly connected with a connecting rod (20) on the side away from the circular frame (1), the end of the connecting rod (20) away from the second bevel gear (19) passes through the adjacent connecting hole, the outer edge of the connecting rod (20) is fixedly connected with two protrusions (21), the inner cavity of the movable tube (3) is provided with a spiral rod (14), the end of the spiral rod (14) near the circular frame (1) is provided with a blind hole, the inner wall of the blind hole is provided with two connecting grooves, the end of the connecting rod (20) away from the second bevel gear (19) extends to the inner cavity of the adjacent blind hole, and the protrusion (21) is located in the inner cavity of the adjacent connecting groove.

2. The conveying and crushing device for high-dispersibility expanded ammonium nitrate explosive according to claim 1, characterized in that: Four fixing blocks (24) are fixedly connected to the outer edge of the spiral rod (14) near the circular frame (1). A fixing ring (22) is fitted on the outer edge of the spiral rod (14) near the circular frame (1). A second annular groove is opened on the inner wall of the fixing ring (22). The four fixing blocks (24) are located in the inner cavity of the adjacent second annular groove. Four limiting rods (25) are fixedly connected to the outer edge of the fixing ring (22). The end of the limiting rod (25) away from the fixing ring (22) is fixedly connected to the inner wall of the adjacent movable tube (3).

3. The conveying and crushing device for high-dispersibility expanded ammonium nitrate explosive according to claim 1, characterized in that: The support frame (8) located on the rear side has a threaded hole at the end away from the circular frame (1), and the support frame (8) located on the front side has a threaded rod (26) inserted at the end away from the circular frame (1). The outer edge of the threaded rod (26) is fixedly connected to four handles (27) near the front side, and the threaded rod (26) is threaded into the inner cavity of the adjacent threaded hole.

4. The conveying and crushing device for a high-dispersibility expanded ammonium nitrate explosive according to claim 1, characterized in that: The circular frame (1) is provided with four limiting discs (11) on the rear side. Two second elastic ropes (12) are fixedly connected to the outer edge of each limiting disc (11). The end of the second elastic rope (12) away from the limiting disc (11) is fixedly connected to the outer edge of the circular frame (1).

5. The conveying and crushing device for high-dispersibility expanded ammonium nitrate explosive according to claim 1, characterized in that: The end of each movable tube (3) away from the circular frame (1) is fitted with a connecting plate (9). Two first elastic ropes (10) are fixedly connected to the outer edge of each connecting plate (9). The end of each first elastic rope (10) away from the connecting plate (9) is fixedly connected to the outer edge of the adjacent movable tube (3).

6. The conveying and crushing device for high-dispersibility expanded ammonium nitrate explosive according to claim 1, characterized in that: The support frame (8) is fixedly connected to casters (28) near the left and right sides at the bottom.

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