An efficient mixing and conveying device for ammonium nitrate fuel oil explosive

Abstract

The present application relates to the technical field of material mixing and conveying, and discloses an efficient mixing and conveying device for ammonium nitrate fuel oil explosive, which comprises a mixing device for mixing materials, a conveying device for conveying the mixed materials, and a support frame, wherein the mixing device and the conveying device are fixedly connected with the support frame, and the conveying device is fixedly connected with the bottom end of the mixing device; the mixing device comprises a mixing barrel fixedly connected with the support frame, a stirring device arranged in the mixing barrel, a feeding hopper for adding materials, and a discharging pipe for conveying the materials in the mixing barrel to the conveying device; the stirring device is provided with a spraying device for spraying liquid, and the spraying device is connected with an atomizing device for conveying the liquid to the stirring device. The present application has the beneficial effects that the spraying device and the stirring device are combined together, liquid is uniformly sprayed at multiple positions during stirring, the stirring efficiency of the materials and the liquid is improved, and the mixing and conveying efficiency of the ammonium nitrate fuel oil explosive is improved.

Description

Technical Field

[0001] This invention relates to the technical field of material mixing and conveying, and specifically to an efficient mixing and conveying device for ammonium nitrate explosives. Background Technology

[0002] Industrial explosives are one of the essential energy sources for modern industrial development. Ammonium nitrate (AM) explosives are widely used in my country as a type of industrial explosive. AM explosives are made by mixing granular ammonium nitrate with diesel fuel and other additives in a certain proportion, and are suitable for open-pit mine blasting projects.

[0003] Existing ammonium nitrate (ANN) explosives have relatively poor storage stability and are best used immediately after mixing. Therefore, the production method of mixing on-site and then loading into the borehole is preferable. In the mixing of ANN explosives, diesel fuel is typically poured into granular ammonium nitrate and then stirred to ensure uniform mixing. Since the mixing effect of diesel fuel and ammonium nitrate affects the explosive's detonation effect, a relatively long mixing time is required before transportation to ensure thorough mixing of the diesel fuel and ammonium nitrate granules. This results in low mixing and transportation efficiency for ANN explosives. Therefore, a new technical solution is needed to address these technical problems. Summary of the Invention

[0004] This application proposes an efficient mixing and conveying device for ammonium nitrate explosives. By combining a spraying device and a stirring device, liquid is sprayed during the stirring process, achieving uniform spraying of liquid at multiple points, which enables the material and liquid to be mixed together quickly, thereby improving the mixing efficiency of the material and liquid. After the mixing is completed, the material is conveyed to the conveying device through a discharge pipe, and the conveying device transports the evenly mixed material to the next station, thus achieving the purpose of improving the mixing and conveying efficiency of ammonium nitrate explosives.

[0005] Therefore, this application provides an efficient mixing and conveying device for ammonium nitrate explosives, including a mixing device for mixing materials, a conveying device for conveying the mixed materials, and a support frame. The mixing device and the conveying device are both fixedly connected to the support frame. The mixing device is located above the conveying device, and the conveying device is fixedly connected to the bottom end of the mixing device. The mixing device includes a mixing tank fixedly connected to a support frame, a stirring device disposed inside the mixing tank, a feed hopper for adding materials, and a discharge pipe for conveying the materials in the mixing tank to a conveying device. The stirring device is equipped with a spraying device for spraying liquid, and the spraying device is connected to an atomizing device for conveying liquid to the stirring device. The stirring device sprays atomized liquid during the stirring process. The discharge pipe is fixedly connected to and communicates with the mixing tank.

[0006] By adopting the above technical solution: when using the mixing and conveying device, the material is first conveyed to the mixing tank, and then the stirring device is started simultaneously with the atomizing device to atomize the liquid. The atomized liquid is then conveyed to the spraying device. Since the spraying device is located inside the stirring device, the stirring device uses the spraying device to evenly spray the liquid onto the material in the mixing tank during the stirring process, achieving uniform spraying of liquid in multiple parts, so that the material and liquid are quickly mixed together, improving the mixing efficiency of the material and liquid. After the mixing is completed, the material is conveyed to the conveying device through the discharge pipe, and the conveying device conveys the evenly mixed material to the next station, thus achieving the purpose of improving the mixing and conveying efficiency of ammonium nitrate explosives.

[0007] Preferably, the stirring device includes a stirring shaft rotatably connected to the mixing tank and a stirring rod fixedly connected to the stirring shaft. The stirring shaft rotates around its own axis inside the mixing tank, and the spraying device is disposed inside the stirring shaft and the stirring rod.

[0008] By adopting the above technical solution: starting the stirring shaft drives the stirring rod to rotate inside the mixing tank, and using the stirring shaft and stirring rod to stir the materials inside the mixing tank, the spraying device is set inside the stirring shaft and stirring rod. Therefore, as the stirring shaft and stirring rod rotate, the spraying device sprays atomized liquid inside the mixing tank.

[0009] Preferably, the spraying device includes a main spraying pipe disposed inside the stirring shaft and a branch spraying pipe disposed inside the stirring rod. The branch spraying pipe is fixedly connected to and communicates with the main spraying pipe. The branch spraying pipe is provided with a spraying head, which passes through the side wall of the stirring rod to spray liquid into the mixing tank. The main spraying pipe is connected to an atomizing device.

[0010] By adopting the above technical solution: the atomizing device delivers the atomized liquid to the main spray pipe, the main spray pipe delivers the atomized liquid to the branch spray pipe, and the atomized liquid in the branch spray pipe is delivered to the material in the mixing tank through the spray head. Since the spray head is set on the stirring rod, as the stirring shaft drives the stirring rod to rotate, the stirring rod drives the spray head to move, so that the atomized liquid is evenly sprayed into the material in the mixing tank.

[0011] Preferably, the atomizing device includes an airflow pipe connected to a gas source, a liquid flow pipe connected to a liquid source, a Venturi tube for gas-liquid mixing and atomization, and a delivery pipe for conveying the mixed gas. The airflow pipe is fixedly connected to one end of the Venturi tube, the liquid flow pipe is fixedly connected to the narrow neck of the Venturi tube, one end of the delivery pipe is fixedly connected to the end of the Venturi tube away from the airflow pipe, and the other end is fixedly connected to the main spray pipe.

[0012] By adopting the above technical solution: when using the atomizing device, a high-velocity airflow is first delivered into the Venturi tube through the airflow pipe. When the airflow passes through the narrow neck of the Venturi tube, the velocity increases and a negative pressure is generated, which adsorbs the liquid in the liquid flow pipe into the Venturi tube. Under the impact of the high-velocity airflow, the liquid is atomized. The atomized liquid enters the delivery pipe with the airflow and is then transported to the main spray pipe along the delivery pipe.

[0013] Preferably, the airflow pipe is provided with a pneumatic device for driving the stirring shaft to rotate. The pneumatic device includes a housing fixedly connected to the mixing tank, a pneumatic turbine rotatably connected to the housing, an inlet pipe and an outlet pipe fixedly connected to the housing, and an output shaft fixedly connected to the pneumatic turbine. The inlet pipe and the outlet pipe are both fixedly connected to and communicate with the airflow pipe. The inlet pipe is used to input the gas from the airflow pipe into the housing to drive the turbine to rotate. The outlet pipe is used to transport the gas after driving the turbine to rotate from the housing to the airflow pipe. The output shaft is rotatably connected to the housing. One end of the output shaft passes through the housing and is provided with a linkage device for transmitting kinetic energy between the housing and the stirring shaft.

[0014] By adopting the above technical solution: when airflow is delivered to the Venturi tube through the airflow pipe, the airflow enters the housing through the air inlet pipe, the airflow drives the pneumatic turbine to rotate, the airflow carried by the pneumatic turbine flows out through the air outlet pipe, and the airflow after flowing out is delivered to the Venturi tube through the airflow pipe. When the pneumatic turbine rotates, it drives the output shaft to rotate, and the rotation of the output shaft drives the stirring shaft to rotate through the linkage device.

[0015] Preferably, the linkage device includes a drive wheel fixedly connected to the output shaft, a driven wheel fixedly connected to the stirring shaft, and a chain sleeved between the drive wheel and the driven wheel, wherein the drive wheel drives the driven wheel to rotate via the chain.

[0016] By adopting the above technical solution: when the output shaft rotates, it drives the driving wheel to rotate, and the driving wheel drives the driven wheel to rotate through the chain. The driven wheel is fixedly connected to the stirring shaft, so the driven wheel drives the stirring shaft to rotate, realizing the linkage between the output shaft and the stirring shaft.

[0017] Preferably, the stirring rod is provided with stirring blades for propelling the material to flow in the mixing tank, and the stirring blades are fixedly connected to the stirring rod.

[0018] By adopting the above technical solution, the stirring blades are used to agitate the material passing through the stirring rod, thereby improving the stirring effect when the stirring rod rotates.

[0019] Preferably, the conveying device includes a housing fixedly connected to the support frame and an auger rotatably connected inside the housing. The housing is fixedly connected to the discharge pipe and communicates with the mixing tank through the discharge pipe.

[0020] Preferably, the feeding pipe is equipped with a control valve for controlling the opening and closing of the feeding pipe, and the control valve is located near the mixing tank.

[0021] By adopting the above technical solution: after the material and liquid are fully mixed, the control valve is activated to open the feed pipe, and the material in the feed pipe enters the outer shell. At this time, the auger is started to rotate, so that the auger transports the mixed material to the next station. As the auger rotates, the material in the mixing tank is continuously transported to the outer shell through the feed pipe.

[0022] Preferably, the top of the mixing tank is provided with an exhaust pipe for discharging the gas inside the mixing tank, and the exhaust pipe is provided with a check valve that only allows gas to be discharged outward.

[0023] By adopting the above technical solution: after the atomized liquid is transported to the mixing tank, the liquid carried by the gas flow is absorbed by the material, and the gas passes through layers of material and enters the exhaust pipe, and is then discharged to the gas treatment device through the exhaust pipe.

[0024] The working principle and beneficial effects of this application are as follows: 1. By setting up a mixing and conveying device, the material is conveyed to the mixing tank. Then, the stirring device is started simultaneously with the atomizing device to atomize the liquid. The atomized liquid is conveyed to the spraying device. Since the spraying device is located inside the stirring device, the stirring device uses the spraying device to evenly spray the liquid onto the material in the mixing tank during the stirring process, achieving uniform spraying of liquid in multiple parts, so that the material and liquid are quickly mixed together, improving the mixing efficiency of the material and liquid. After the mixing is completed, the material is conveyed to the conveying device through the discharge pipe. The conveying device then transports the evenly mixed material to the next station, achieving the purpose of improving the mixing and conveying efficiency of ammonium nitrate explosives.

[0025] 2. By combining a spraying device and a stirring device, the atomizing device delivers the atomized liquid to the main spraying pipe, which in turn delivers the atomized liquid to the branch spraying pipe. The atomized liquid in the branch spraying pipe is then delivered to the material in the mixing tank via the spray head. Since the spray head is mounted on the stirring rod, the stirring shaft drives the stirring rod to rotate, which in turn moves the spray head, ensuring that the atomized liquid is evenly sprayed onto the material in the mixing tank.

[0026] 3. By setting up a pneumatic device and a linkage device, the airflow enters the housing through the air inlet pipe. The airflow drives the pneumatic turbine to rotate. The airflow carried by the rotating pneumatic turbine flows out through the air outlet pipe. The outflowing airflow is then transported to the Venturi tube through the airflow pipe. When the pneumatic turbine rotates, it drives the output shaft to rotate. The rotation of the output shaft drives the stirring shaft to rotate through the linkage device. This achieves the goal that the faster the gas flow, the faster the stirring speed, that is, the faster the atomized liquid is sprayed, and the faster the stirring rod rotates. This achieves a direct proportional relationship between the stirring rod and the spraying speed, further improving the rate of uniform stirring. Attached Figure Description

[0027] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a schematic diagram of the large structure of an ammonium nitrate explosive mixing and conveying device according to this application; Figure 2 This application shows a schematic diagram of the combination of the mixing device and the spraying device; Figure 3 This is a schematic diagram of the actual pneumatic device and linkage device of this application.

[0029] The technical features in the attached drawings are labeled as follows: 1. Mixing device; 11. Mixing tank; 12. Feed hopper; 13. Feed pipe; 2. Conveying device; 21. Shell; 22. Screwdriver; 3. Support frame; 4. Stirring device; 41. Stirring shaft; 42. Stirring rod; 5. Spraying device; 51. Main spraying pipe; 52. Branch spraying pipe; 53. Spray head; 6. Atomizing device; 61. Airflow pipe; 62. Liquid flow pipe; 63. Venturi tube; 64. Conveying pipe; 8. Pneumatic device; 81. Shell; 82. Pneumatic turbine; 83. Inlet pipe; 84. Outlet pipe; 85. Output shaft; 9. Linkage device; 91. Drive wheel; 92. Driven wheel; 93. Chain; 10. Stirring blades; 20. Exhaust pipe; 201. Check valve. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1-2As shown, this embodiment provides an efficient mixing and conveying device for ammonium nitrate explosives, including a mixing device 1 for mixing materials, a conveying device 2 for conveying the mixed materials, and a support frame 3. The mixing device 1 and the conveying device 2 are both fixedly connected to the support frame 3. The mixing device 1 is located above the conveying device 2, and the conveying device 2 is fixedly connected to the bottom end of the mixing device 1.

[0032] like Figures 1-2 As shown, the mixing device 1 includes a mixing tank 11 fixedly connected to the support frame 3, a stirring device 4 disposed inside the mixing tank 11, a feed hopper 12 for adding materials, and a discharge pipe 13 for conveying the materials in the mixing tank 11 to the conveying device 2. The stirring device 4 is provided with a spraying device 5 for spraying liquid. The spraying device 5 is connected to an atomizing device 6 for conveying liquid to the stirring device 4. The stirring device 4 sprays atomized liquid during the stirring process. The discharge pipe 13 is fixedly connected to and communicates with the mixing tank 11. In this embodiment, a solenoid valve for controlling the flow of materials is provided at the feed hopper 12, and a control valve for controlling the opening and closing of the discharge pipe 13 is provided on the discharge pipe 13. The control valve is located near the mixing tank 11.

[0033] like Figures 1-2 As shown, the stirring device 4 includes a stirring shaft 41 rotatably connected to the mixing tank 11 and a stirring rod 42 fixedly connected to the stirring shaft 41. The stirring shaft 41 rotates around its own axis inside the mixing tank 11. The spraying device 5 is disposed inside the stirring shaft 41 and the stirring rod 42. The stirring rod 42 is provided with stirring blades 10 for pushing the material to flow inside the mixing tank 11. The stirring blades 10 are fixedly connected to the stirring rod 42. The spraying device 5 includes a main spraying pipe 51 disposed inside the stirring shaft 41 and a branch spraying pipe 52 disposed inside the stirring rod 42. The branch spraying pipe 52 is fixedly connected to and communicates with the main spraying pipe 51. The branch spraying pipe 52 is provided with a spraying head 53. The spraying head 53 passes through the side wall of the stirring rod 42 for spraying liquid into the mixing tank 11. The main spraying pipe 51 is connected to the atomizing device 6.

[0034] like Figures 1-3 As shown, the atomizing device 6 includes an airflow pipe 61 connected to a gas source, a liquid flow pipe 62 connected to a liquid source, a venturi tube 63 for gas-liquid mixing and atomization, and a delivery pipe 64 for conveying the mixed gas. The airflow pipe 61 is fixedly connected to one end of the venturi tube 63, the liquid flow pipe 62 is fixedly connected to the narrow neck of the venturi tube 63, one end of the delivery pipe 64 is fixedly connected to the end of the venturi tube 63 away from the airflow pipe 61, and the other end is fixedly connected to the main spray pipe 51. In this embodiment, the gas source is preferably inert gas nitrogen. To save costs, nitrogen can be mixed with purified air to serve as the gas source. In this embodiment, the liquid flow pipe 62 is equipped with a solenoid valve and a flow meter. The flow meter is used to detect the liquid flow through the liquid flow pipe 62, and the solenoid valve is used to control the opening and closing of the liquid flow pipe 62.

[0035] like Figures 1-3 As shown, a pneumatic device 8 for driving the stirring shaft 41 to rotate is provided on the airflow pipe 61. The pneumatic device 8 includes a housing 81 fixedly connected to the mixing tank 11, a pneumatic turbine 82 rotatably connected to the housing 81, an inlet pipe 83 and an outlet pipe 84 fixedly connected to the housing 81, and an output shaft 85 fixedly connected to the pneumatic turbine 82. The inlet pipe 83 and the outlet pipe 84 are both fixedly connected to and communicate with the airflow pipe 61. The inlet pipe 83 is used to input the gas from the airflow pipe 61 into the housing 81 to drive the turbine to rotate and to output the gas. Pipe 84 is used to transport the gas after driving the turbine to rotate from the housing 81 to the airflow pipe 61. The output shaft 85 is rotatably connected to the housing 81. One end of the output shaft 85 passes through the housing 81 and is provided with a linkage device 9 for transmitting kinetic energy between it and the stirring shaft 41. The linkage device 9 includes a driving wheel 91 fixedly connected to the output shaft 85, a driven wheel 92 fixedly connected to the stirring shaft 41, and a chain 93 sleeved between the driving wheel 91 and the driven wheel 92. The driving wheel 91 drives the driven wheel 92 to rotate through the chain 93.

[0036] like Figure 1 As shown, the conveying device 2 includes a housing 21 fixedly connected to the support frame 3 and an auger 22 rotatably connected inside the housing 21. The housing 21 is fixedly connected to the discharge pipe 13 and is connected to the mixing tank 11 through the discharge pipe 13. An exhaust pipe 20 for discharging gas from the mixing tank 11 is provided at the top of the mixing tank 11. A check valve 201, which only allows gas to be discharged outwards, is provided on the exhaust pipe 20. In this embodiment, the auger 22 is preferably an inclined double-screw conveyor, utilizing two parallel, co-rotating screw shafts with meshing blades. During the conveying process, the material is gently tumbled and secondary mixed between the two screws, effectively preventing "segregation" caused by particle size or density differences and ensuring consistent uniformity after conveying.

[0037] The basic principle of this embodiment is as follows: When using the mixing and conveying device 2, a certain amount of material particles are first conveyed into the mixing barrel 11 through the feed hopper 12. Then, the valve at the feed hopper 12 is closed. At this time, the air source is started to convey high-velocity gas into the airflow pipe 61. The high-velocity gas flows into the housing 81 through the air inlet pipe 83. Then, the airflow drives the pneumatic turbine 82 to rotate. The airflow carried by the pneumatic turbine 82 flows out through the air outlet pipe 84. The outflowing airflow is then conveyed to the venturi tube 63 through the airflow pipe 61. When the pneumatic turbine 82 rotates, it drives the output shaft 85 to rotate. The output shaft 85 rotates, which drives the drive wheel 91 to rotate. The drive wheel 91 drives the driven wheel 92 to rotate through the chain 93. The driven wheel 92 drives the driven wheel 92 to rotate. The stirring shaft 41 rotates; the airflow enters the venturi tube 63. When the airflow passes through the narrow neck of the venturi tube 63, the flow rate increases and a negative pressure is generated, which adsorbs the liquid in the liquid flow pipe 62 into the venturi tube 63. Under the impact of the high-velocity airflow, the liquid is atomized. The atomized liquid enters the conveying pipe 64 with the airflow, and then is conveyed to the spray main pipe 51 along the conveying pipe 64. The spray main pipe 51 conveys the atomized liquid to the spray branch pipe 52. The atomized liquid in the spray branch pipe 52 is conveyed to the material in the mixing tank 11 through the spray head 53. At this time, the stirring shaft 41 drives the stirring rod 42 to rotate in the mixing tank 11. The stirring rod 42 drives the spray head 53 to spray the atomized liquid evenly into the mixing tank 11.

[0038] When the flow meter on the liquid flow pipe 62 detects that the liquid delivery has reached a certain amount, it controls the solenoid valve to close the flow pipe, so that the liquid is no longer delivered into the venturi tube 63. Then, the airflow continues to be delivered through the airflow pipe 61, and the airflow continues to drive the stirring rod 42 and stirring shaft 41 through the pneumatic device 8 and the linkage device 9 to stir, so that the material and liquid are fully stirred. The material after being stirred evenly is matured in the mixing tank 11. After the material matures, the valve at the discharge pipe 13 is opened, so that the material enters the outer shell 21 through the discharge pipe 13. The auger in the outer shell 21 is used to transport the material to the next station. During the feeding process, airflow can continue to be introduced into the mixing tank 11 through the airflow pipe 61, so that the stirring rod 42 rotates. The airflow sprayed by the stirring rod 42 and the movement of the stirring rod 42 are used to break the bridging and adhesion of the material, increase the feeding speed of the matured material, and further improve the mixing and conveying efficiency of ammonium nitrate explosive.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency mixing and conveying device for ammonium nitrate explosives, characterized in that, It includes a mixing device (1) for mixing materials, a conveying device (2) for conveying the mixed materials, and a support frame (3). The mixing device (1) and the conveying device (2) are both fixedly connected to the support frame (3). The mixing device (1) is located above the conveying device (2), and the conveying device (2) is fixedly connected to the bottom end of the mixing device (1). The mixing device (1) includes a mixing tank (11) fixedly connected to the support frame (3), a stirring device (4) disposed in the mixing tank (11), a feeding hopper (12) for adding materials, and a discharge pipe (13) for conveying the materials in the mixing tank (11) to the conveying device (2). The stirring device (4) is provided with a spraying device (5) for spraying liquid. The spraying device (5) is connected to an atomizing device (6) for conveying liquid to the stirring device (4). The stirring device (4) sprays atomized liquid during the stirring process. The discharge pipe (13) is fixedly connected to and communicates with the mixing tank (11).

2. The high-efficiency mixing and conveying device for ammonium nitrate explosives according to claim 1, characterized in that, The stirring device (4) includes a stirring shaft (41) rotatably connected to the mixing tank (11) and a stirring rod (42) fixedly connected to the stirring shaft (41). The stirring shaft (41) rotates around its own axis inside the mixing tank (11), and the spraying device (5) is installed inside the stirring shaft (41) and the stirring rod (42).

3. The high-efficiency mixing and conveying device for ammonium nitrate explosives according to claim 2, characterized in that, The spraying device (5) includes a spraying main pipe (51) installed in the stirring shaft (41) and a spraying branch pipe (52) installed in the stirring rod (42). The spraying branch pipe (52) is fixedly connected to and communicates with the spraying main pipe (51). The spraying branch pipe (52) is equipped with a spraying head (53). The spraying head (53) passes through the side wall of the stirring rod (42) to spray liquid into the mixing tank (11). The spraying main pipe (51) is connected to the atomizing device (6).

4. The high-efficiency mixing and conveying device for ammonium nitrate explosives according to claim 3, characterized in that, The atomizing device (6) includes an airflow pipe (61) connected to a gas source, a liquid flow pipe (62) connected to a liquid source, a venturi tube (63) for gas-liquid mixing and atomization, and a delivery pipe (64) for conveying the mixed gas. The airflow pipe (61) is fixedly connected to one end of the venturi tube (63), the liquid flow pipe (62) is fixedly connected to the narrow neck of the venturi tube (63), one end of the delivery pipe (64) is fixedly connected to the end of the venturi tube (63) away from the airflow pipe (61), and the other end is fixedly connected to the main spray pipe (51).

5. The high-efficiency mixing and conveying device for ammonium nitrate explosives according to claim 4, characterized in that, The airflow pipe (61) is provided with a pneumatic device (8) for driving the stirring shaft (41) to rotate. The pneumatic device (8) includes a housing (81) fixedly connected to the mixing tank (11), a pneumatic turbine (82) rotatably connected to the housing (81), an air inlet pipe (83) and an air outlet pipe (84) fixedly connected to the housing (81), and an output shaft (85) fixedly connected to the pneumatic turbine (82). The air inlet pipe (83) and the air outlet pipe (84) are both fixedly connected to and communicate with the airflow pipe (61). The air inlet pipe (83) is used to input the gas from the airflow pipe (61) into the housing (81) to drive the turbine to rotate. The air outlet pipe (84) is used to transport the gas after driving the turbine to rotate from the housing (81) to the airflow pipe (61). The output shaft (85) is rotatably connected to the housing (81). One end of the output shaft (85) passes through the housing (81) and is provided with a linkage device (9) for transmitting kinetic energy between the stirring shaft (41) and the stirring shaft (81).

6. The high-efficiency mixing and conveying device for ammonium nitrate explosives according to claim 5, characterized in that, The linkage device (9) includes a drive wheel (91) fixedly connected to the output shaft (85), a driven wheel (92) fixedly connected to the stirring shaft (41), and a chain (93) sleeved between the drive wheel (91) and the driven wheel (92). The drive wheel (91) drives the driven wheel (92) to rotate through the chain (93).

7. The high-efficiency mixing and conveying device for ammonium nitrate explosives according to claim 1, characterized in that, The stirring rod (42) is provided with stirring blades (10) for pushing the material to flow in the mixing tank (11), and the stirring blades (10) are fixedly connected to the stirring rod (42).

8. The high-efficiency mixing and conveying device for ammonium nitrate explosives according to claim 1, characterized in that, The conveying device (2) includes a housing (21) fixedly connected to the support frame (3) and an auger (22) rotatably connected inside the housing (21). The housing (21) is fixedly connected to the discharge pipe (13), and the housing (21) is connected to the mixing tank (11) through the discharge pipe (13).

9. The high-efficiency mixing and conveying device for ammonium nitrate explosives according to claim 8, characterized in that, The feed pipe (13) is equipped with a control valve for controlling the opening and closing of the feed pipe (13), and the control valve is located near the mixing tank (11).

10. The high-efficiency mixing and conveying device for ammonium nitrate explosives according to claim 1, characterized in that, The top of the mixing tank (11) is provided with an exhaust pipe (20) for discharging the gas inside the mixing tank (11), and the exhaust pipe (20) is provided with a check valve (201) that only allows the gas to be discharged outward.

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