Stirring device for mixing modified ammonium nitrate fuel oil explosives

Abstract

The utility model discloses a stirring device for mixing modified ammonium nitrate fuel oil explosives, which comprises a mixing tank and a cooling jacket, the upper end of the mixing tank is fixedly connected with a water pump, a first motor and a feed hopper, the side end of the cooling jacket is fixedly communicated with a water inlet pipe, and the other side end of the cooling jacket is fixedly communicated with a water outlet pipe. A first transmission shaft is rotationally connected to the top in the mixing tank, a plurality of stirring paddles are fixedly connected to the outer side of the first transmission shaft, a plurality of heat conduction rods are fixedly connected to the inner wall of the mixing tank, a discharging pipe fixedly communicates with the middle of the lower end of the mixing tank, and a supporting frame is fixedly connected to the outer side end of the cooling sleeve; the lower end of the supporting frame is fixedly connected with supporting legs. The cooling device for the ammonium nitrate fuel oil explosive can cool the interior of the ammonium nitrate fuel oil explosive while stirring and mixing the ammonium nitrate fuel oil explosive, improves the heat dissipation effect, and is simple in structure and convenient to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of modified ammonium nitrate oil explosive production, in particular to a stirring device for mixing modified ammonium nitrate oil explosive. Background Art

[0002] Ammonium nitrate oil explosive (ANFO) refers to a powdered or granular explosive mixture composed of ammonium nitrate and fuel, which is mainly suitable for open-air blasting projects and blasting projects without the danger of methane and mine dust explosion. It includes powdered ammonium nitrate oil explosive, porous granular ammonium nitrate oil explosive, heavy ammonium nitrate oil explosive, granular sticky explosive, and thickened granular ammonium nitrate oil explosive.

[0003] Patent application number "CN202020747102.0", patent name "A mixing device for producing modified ammonium oil-fuel mixture", includes a machine body, a first interlayer is arranged on the inner wall of the machine body, a base for supporting the machine body is fixedly arranged at the bottom of the machine body, and a feed hopper is arranged on the top of the machine body, which passes through the first interlayer and extends to the inner cavity of the machine body. The utility model relates to the technical field of modified ammonium oil-fuel mixture production. The mixing device for producing modified ammonium oil-fuel mixture not only has a water-cooling interlayer arranged on the inner wall of the machine body, but also has a water-cooling interlayer arranged inside the stirring mechanism, so that no matter how large the volume of the machine body is, the cooling effect can be ensured, and the water-cooling mechanism in the machine body can move up and down with the stirring mechanism, further ensuring the water cooling effect.

[0004] The above structure improves the heat dissipation effect of ammonium oil explosive by arranging water-cooling interlayers in the inner wall of the machine body and the stirring mechanism. If a large amount of material is added to the device, downward pressure will be exerted on the material when the cooling rack moves up and down, causing the material to be tightly connected, making it difficult to stir, and affecting the stirring effect. Summary of the invention

[0005] The utility model aims to provide a stirring device for mixing modified ammonium oil-fuel mixture, which can cool the inside of the ammonium oil-fuel mixture, improve the heat dissipation effect, do not affect the stirring of the materials, and has a simple structure and is easy to maintain.

[0006] To achieve the above-mentioned purpose, a modified ammonium nitrate oil mixture stirring device is provided, comprising: a mixing tank and a cooling jacket, wherein the cooling jacket is fixedly connected to the outer end of the mixing tank, and the mixing tank passes through the middle part of the cooling jacket, and the mixing tank cooperates with the middle part of the cooling jacket to form a water storage chamber, the upper end of the mixing tank is fixedly connected to a water pump, a first motor and a feed hopper, and the first motor is located in the middle part of the mixing tank, the output end of the water pump is fixedly connected to a connecting pipe, the output end of the first motor downwardly penetrates the mixing tank and extends into the mixing tank, the lower end of the feed hopper is communicated with the mixing tank, the side end of the cooling jacket is fixedly connected to a water inlet pipe, and the water inlet pipe is located at the top of the water storage chamber, the other end of the connecting pipe is fixedly connected to the water inlet pipe, the other side end of the cooling jacket is fixedly connected to a water outlet pipe, and the water outlet pipe is located at the bottom of the water storage chamber, The top in the mixing tank is rotatably connected with the first transmission shaft, and the first transmission shaft is located in the middle of the mixing tank, the output end of the first motor is fixedly connected with the first transmission shaft, the outside of the first transmission shaft is fixedly connected with a plurality of stirring paddles, and the stirring paddles are equidistantly distributed at the outside end of the first transmission shaft, the inner wall of the mixing tank is fixedly connected with a plurality of heat-conducting rods, and the heat-conducting rod is located between the stirring paddles, one end of the heat-conducting rod runs through the mixing tank, and the other end of the heat-conducting rod extends into the water storage chamber, the first transmission shaft runs through the middle of the stirring paddle, the middle of the lower end of the mixing tank is fixedly connected with a discharge pipe, the outside end of the cooling jacket is fixedly connected with a support frame, and the cooling jacket passes through the middle of the support frame, the water outlet pipe is located below the support frame, the lower end of the support frame is fixedly connected with a support leg, and the support leg is located at the four corners of the support frame. The inside of the ammonium oil-fired explosive can be cooled, the heat dissipation effect is improved, the stirring of the material is not affected, and the structure is simple and easy to maintain.

[0007] The heat-conducting rod is made of copper alloy, which improves the heat conductivity of the heat-conducting rod and improves the cooling efficiency when mixing ammonium nitrate explosive.

[0008] The side end of the discharge pipe is provided with a discharge port, and the discharge port is located at the bottom of the discharge pipe, the lower end of the discharge pipe is fixedly connected with a second motor, and the output end of the second motor extends upward into the discharge pipe, the bottom of the discharge pipe is rotatably connected with a second transmission shaft, and the second transmission shaft is located in the middle of the discharge pipe, the output end of the second motor is fixedly connected with the second transmission shaft, the outer end of the second transmission shaft is fixedly surrounded by a propeller blade, and the outer end of the propeller blade is rotatably connected with the inner wall of the discharge pipe. The ammonium oil-fuel mixture after mixing can be sent out of the device and pipeline blockage can be avoided.

[0009] A temperature sensor is installed in the water storage chamber to detect the temperature of the cooling water in the water storage chamber, thereby controlling the power of the water pump.

[0010] The inner wall of the cooling jacket is plated with an anti-corrosion coating, which improves the corrosion resistance of the cooling jacket and prolongs its service life.

[0011] The bottom of the mixing tank is in a downward truncated cone shape, and the discharge pipe is located at the lowest point of the mixing tank, thereby reducing the residual ANFO in the mixing tank.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The cooling jacket is used to dissipate heat from the outside of the material in the mixing tank. At the same time, the heat-conducting rod in the mixing tank extends into the inner wall of the material to transfer the heat inside the material to the water storage chamber to dissipate heat inside the material. At the same time, the heat-conducting rod is located between the stirring paddles, which does not affect the stirring of the material, and the structure is simple and easy to maintain.

[0014] 2. The second motor is used to drive the second transmission shaft to rotate the propeller blades to transport the mixed ammonium nitrate oil explosive outward, thereby preventing the powdered ammonium nitrate oil explosive from clogging the discharge port.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a three-dimensional structural diagram of a stirring device for mixing modified ammonium nitrate oil explosive.

[0017] Figure 2 The utility model is a three-dimensional structural diagram of a mixing tank of a stirring device for mixing modified ammonium nitrate oil explosive.

[0018] Figure 3 The utility model is a cross-sectional structural diagram of a mixing tank of a stirring device for mixing modified ammonium nitrate oil explosive.

[0019] Legend:

[0020] 1. Connecting pipe; 2. First motor; 3. Mixing tank; 4. Cooling jacket; 5. Support frame; 6. Support legs; 7. Water outlet pipe; 8. Feed hopper; 9. Water pump; 10. Discharge pipe; 11. Second motor; 12. First transmission shaft; 13. Water inlet pipe; 14. Water storage chamber; 15. Heat transfer rod; 16. Agitator paddle; 17. Second transmission shaft; 18. Discharge port; 19. Propeller blades. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-3The utility model embodiment is a modified ammonium nitrate oil mixture stirring device, which comprises: a mixing tank 3 and a cooling jacket 4, the cooling jacket 4 is fixedly connected to the outer end of the mixing tank 3, and the mixing tank 3 passes through the middle of the cooling jacket 4, the mixing tank 3 and the middle of the cooling jacket 4 cooperate to form a water storage chamber 14, the upper end of the mixing tank 3 is fixedly connected with a water pump 9, a first motor 2 and a feed hopper 8, and the first motor 2 is located in the middle of the mixing tank 3, the output end of the water pump 9 is fixedly connected with a connecting pipe 1, the output end of the first motor 2 downwardly penetrates the mixing tank 3 and extends into the mixing tank 3, the lower end of the feed hopper 8 is communicated with the mixing tank 3, the side end of the cooling jacket 4 is fixedly connected with a water inlet pipe 13, and the water inlet pipe 13 is located at the top of the water storage chamber 14, the other end of the connecting pipe 1 is fixedly connected with the water inlet pipe 13, the other side end of the cooling jacket 4 is fixedly connected with a water outlet pipe 7, and the water outlet pipe 7 is located at the bottom of the water storage chamber 14, and the mixing tank 3 is in a state of being filled with water. The top of the mixing tank 3 is rotatably connected with a first transmission shaft 12, and the first transmission shaft 12 is located in the middle of the mixing tank 3, the output end of the first motor 2 is fixedly connected to the first transmission shaft 12, and a plurality of stirring paddles 16 are fixedly connected to the outside of the first transmission shaft 12, and the stirring paddles 16 are equidistantly distributed at the outer end of the first transmission shaft 12, a plurality of heat-conducting rods 15 are fixedly connected to the inner wall of the mixing tank 3, and the heat-conducting rods 15 are located between the stirring paddles 16, one end of the heat-conducting rod 15 passes through the mixing tank 3, and the other end of the heat-conducting rod 15 extends into the water storage chamber 14, the first transmission shaft 12 passes through the middle of the stirring paddle 16, and the middle part of the lower end of the mixing tank 3 is fixedly connected with a discharge pipe 10, the outer end of the cooling jacket 4 is fixedly connected to a support frame 5, and the cooling jacket 4 passes through the middle of the support frame 5, the water outlet pipe 7 is located below the support frame 5, and the lower end of the support frame 5 is fixedly connected to a support leg 6, and the support leg 6 is located at the four corners of the support frame 5.

[0023] The heat conducting rod 15 is made of copper alloy.

[0024] A discharge port 18 is provided at the side end of the discharge pipe 10, and the discharge port 18 is located at the bottom of the discharge pipe 10. A second motor 11 is fixedly connected to the lower end of the discharge pipe 10, and the output end of the second motor 11 extends upward into the discharge pipe 10. A second transmission shaft 17 is rotatably connected to the bottom of the discharge pipe 10, and the second transmission shaft 17 is located in the middle of the discharge pipe 10. The output end of the second motor 11 is fixedly connected to the second transmission shaft 17, and the outer end of the second transmission shaft 17 is fixedly surrounded by a propeller blade 19, and the outer end of the propeller blade 19 is rotatably connected to the inner wall of the discharge pipe 10.

[0025] A temperature sensor is installed in the water storage chamber 14 .

[0026] The inner wall of the cooling jacket 4 is plated with an anti-corrosion coating.

[0027] The bottom of the mixing tank 3 is in a downward truncated cone shape, and the discharge pipe 10 is located at the lowest point of the mixing tank 3 .

[0028] Working principle: when mixing ammonium nitrate-oil explosive, materials are added into the mixing tank 3 through the feed hopper 8, the first motor 2 works, so that the first transmission shaft 12 drives the stirring paddle 16 to stir the materials, the water pump 9 sends the external cooling water into the water storage chamber 14 of the cooling jacket 4 through the connecting pipe 1 and the water inlet pipe 13 in turn, and the cooling jacket 4 dissipates the heat on the outside of the material in the mixing tank 3, and at the same time, the heat-conducting rod 15 in the mixing tank 3 extends into the inner wall of the material, and the heat inside the material is transmitted to the water storage chamber 14 to dissipate the heat inside the material, and at the same time, the heat-conducting rod 15 is located between the stirring paddles 16, which does not affect the stirring of the materials, and the cooling water in the cooling jacket 4 leaves the cooling jacket 4 through the water outlet pipe 7, and after mixing is completed, the second motor 11 drives the second transmission shaft 17 to drive the propeller blade 19 to rotate, and the ammonium nitrate-oil explosive after mixing is sent out of the discharge port 18 through the discharge pipe 10, so as to avoid the powdery ammonium nitrate-oil explosive from blocking the discharge port 18.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A modified ammonium nitrate oil mixture stirring device, characterized in that, include: A mixing tank (3) and a cooling jacket (4), wherein the cooling jacket (4) is fixedly connected to the outer end of the mixing tank (3), and the mixing tank (3) passes through the middle of the cooling jacket (4), and the mixing tank (3) and the middle of the cooling jacket (4) cooperate to form a water storage chamber (14), the upper end of the mixing tank (3) is fixedly connected to a water pump (9), a first motor (2) and a feed hopper (8), and the first motor (2) is located in the middle of the mixing tank (3), the output end of the water pump (9) is fixedly connected to a connecting pipe (1), and the output end of the first motor (2) is fixedly connected to a connecting pipe (1). The end of the connecting pipe (1) passes through the mixing tank (3) downward and extends into the mixing tank (3); the lower end of the feed hopper (8) is in communication with the mixing tank (3); the side end of the cooling jacket (4) is fixedly connected to a water inlet pipe (13), and the water inlet pipe (13) is located at the top of the water storage chamber (14); the other end of the connecting pipe (1) is fixedly connected to the water inlet pipe (13); the other side end of the cooling jacket (4) is fixedly connected to a water outlet pipe (7), and the water outlet pipe (7) is located at the bottom of the water storage chamber (14); the top of the mixing tank (3) is rotatably connected to a first transmission pipe. A first transmission shaft (12) is provided, and the first transmission shaft (12) is located in the middle of the mixing tank (3); the output end of the first motor (2) is fixedly connected to the first transmission shaft (12); a plurality of stirring paddles (16) are fixedly connected to the outer side of the first transmission shaft (12), and the stirring paddles (16) are equidistantly distributed at the outer end of the first transmission shaft (12); a plurality of heat-conducting rods (15) are fixedly connected to the inner wall of the mixing tank (3), and the heat-conducting rods (15) are located between the stirring paddles (16), and one end of the heat-conducting rod (15) passes through the mixing tank (3). , and the other end of the heat-conducting rod (15) extends into the water storage chamber (14), the first transmission shaft (12) passes through the middle of the stirring paddle (16), the middle of the lower end of the mixing tank (3) is fixedly connected to a discharge pipe (10), the outer end of the cooling jacket (4) is fixedly connected to a support frame (5), and the cooling jacket (4) passes through the middle of the support frame (5), the water outlet pipe (7) is located below the support frame (5), and the lower end of the support frame (5) is fixedly connected to a support leg (6), and the support leg (6) is located at the four corners of the support frame (5).

2. modified ammonium nitrate oil mixture according to claim 1 is used for stirring device, it is characterized in that, The heat conducting rod (15) is made of copper alloy.

3. modified ammonium nitrate oil mixture stirring device according to claim 1, is characterized in that, A discharge port (18) is provided at a side end of the discharge pipe (10), and the discharge port (18) is located at the bottom of the discharge pipe (10); a second motor (11) is fixedly connected to the lower end of the discharge pipe (10), and an output end of the second motor (11) extends upward into the discharge pipe (10); a second transmission shaft (17) is rotatably connected to the bottom of the discharge pipe (10), and the second transmission shaft (17) is located in the middle of the discharge pipe (10); the output end of the second motor (11) is fixedly connected to the second transmission shaft (17); a propeller blade (19) is fixedly surrounded by an outer end of the second transmission shaft (17), and the outer end of the propeller blade (19) is rotatably connected to the inner wall of the discharge pipe (10).

4. modified ammonium nitrate oil mixture stirring device according to claim 1, is characterized in that, A temperature sensor is installed in the water storage chamber (14).

5. modified ammonium nitrate oil mixture stirring device according to claim 1, is characterized in that, The inner wall of the cooling jacket (4) is plated with an anti-corrosion coating.

6. A modified ammonium nitrate oil mixture stirring device according to claim 1, characterized in that, The bottom of the mixing tank (3) is in the shape of a downwardly facing truncated cone, and the discharge pipe (10) is located at the lowest point of the mixing tank (3).

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