Full-automatic explosive mixing system

Abstract

The invention discloses a full-automatic explosive mixing system, which belongs to the technical field of explosive granulation, and comprises a power device, a power transmission device, a mixing device, a vibration device and a position monitoring device, the power device transmits power to the mixing device through the power transmission device; an explosive mixture is placed in the mixing device, and the mixing device is driven by the power device to fully mix the explosive mixture; the position monitoring device is connected with the mixing device and is used for detecting the orientation of the mixing device; and the vibration device is arranged on the mixing device and is used for generating vibration force and transmitting the vibration force to the explosive mixture. The problems that in the prior art, after materials in an explosive mixing tank are mixed, discharging is insufficient, effective butt joint with a material receiving device cannot be achieved, automatic discharging is achieved, complexity and safety risks of manual operation are increased, pollution to next-time mixing is caused due to the fact that part of the mixture is left on the inner wall, and the working efficiency is low can be effectively solved. And residues are inconvenient to clean the inner wall of the mixing tank, and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of explosive granulation, and specifically relates to a fully automatic explosive mixing system. Background Art

[0002] In the field of explosives manufacturing, accurate mixing of raw materials is a key step to ensure stable performance and product quality of explosives. Traditionally, this mixing process relies on a mixing tank as the core equipment, and the uniform mixing of raw materials is achieved through the rotation of the mixing tank. By rotating the mixing tank, the internal part promotes full contact and fusion between different components. However, in the process of unloading, the position of the unloading port of the mixing tank after rotation is relatively random, making it difficult for the material receiving device to dock with it accurately, and it is impossible to achieve automatic unloading. Further manual operation is required, thereby increasing the complexity and safety risks of manual operation. In addition, part of the mixture is easy to remain on the inner wall of the mixing tank and is difficult to be completely discharged, which not only causes a waste of raw materials, but also may interfere with the subsequent mixing process and reduce the overall production efficiency. Furthermore, the residue on the inner wall of the mixing tank also brings great inconvenience to the cleaning and maintenance of the equipment. After mixing the explosives, there are often strong viscous substances left in the tank. These residues may cause equipment performance degradation due to long-term accumulation, and even cause pollution to the next mixing process, further exacerbating the difficulty of production cost control and quality control.

[0003] In summary, the various deficiencies in the existing explosive mixing tank technology in terms of material unloading convenience and equipment cleaning and maintenance have become important factors restricting the optimization of explosive production efficiency, product quality and production costs. Summary of the invention

[0004] The purpose of the present invention is to provide a fully automatic explosive mixing system to solve the problems of insufficient material discharge after mixing of materials in the explosive mixing tank in the prior art, and the relatively random opening position of the mixing tank after mixing, which makes it impossible to effectively dock with the material receiving device to realize automatic material discharge, and further requires manual operation, which increases the complexity and safety risks of manual operation. In addition, part of the mixture remains on the inner wall, causing pollution to the next mixing, and the residue is not convenient for cleaning the inner wall of the mixing tank. In order to achieve the above purpose, the present invention provides the following technical solutions:

[0005] A fully automatic explosive mixing system comprises a power device, a power transmission device, a mixing device, a vibration device and a position monitoring device; the power device transmits power to the mixing device through the power transmission device; the explosive mixture is placed in the mixing device, and the explosive mixture is fully mixed under the drive of the power device; the position monitoring device is connected to the mixing device and is used to detect the orientation of the mixing device; the vibration device is arranged on the mixing device and is used to generate vibration force to transmit to the explosive mixture.

[0006] Furthermore, the power device includes a driving servo motor and a reducer; the output end of the driving servo motor is connected to the reducer, and the rotation speed is reduced through the reducer; a driving bracket is provided at the lower end of the driving servo motor and the reducer, and is fixed to the ground or other mounting surface through the driving bracket.

[0007] Furthermore, the power transmission device includes a first transmission shaft, a second transmission shaft and a third transmission shaft; the output end of the reducer, the first transmission shaft, the second transmission shaft and the third transmission shaft are connected in sequence; and the third transmission shaft is connected to the mixing device.

[0008] Furthermore, a transmission bracket is provided at the lower end of the power transmission device; a transmission side bearing seat is provided on the transmission bracket; a transmission side bearing is installed on the transmission side bearing seat; and the transmission side bearing is connected to the first transmission shaft or the second transmission shaft or the third transmission shaft.

[0009] Furthermore, a torque sensor is provided at the connection between the first transmission shaft and the second transmission shaft; the second transmission shaft and the third transmission shaft are connected via an expansion coupling.

[0010] Furthermore, the mixing device is a mixing tank; the upper and lower ends of the mixing tank are both opened and are provided with sealing covers.

[0011] Furthermore, the inner wall of the mixing tank is provided with a conductive hydrophobic coating by high-temperature sintering.

[0012] Furthermore, the position monitoring device is a positioning encoder, which is connected to the mixing tank through a driven shaft; a driven bracket is provided at the lower end of the driven shaft; a driven bearing seat is provided on the driven bracket; a driven bearing is installed on the driven bearing seat; and the driven bearing is connected to the driven shaft.

[0013] Furthermore, the vibration device includes a plurality of pneumatic vibrators evenly distributed on the outer wall of the mixing tank.

[0014] Furthermore, a rotating slip ring is connected to the driven shaft; and the rotating slip ring is connected to a plurality of pneumatic vibrators.

[0015] The beneficial effects of the present invention are:

[0016] The present invention is provided with a vibration device and a conductive hydrophobic coating sintered at high temperature on the inner wall of the mixing tank. On the one hand, the materials can be prevented from sticking and being unable to participate in the mixing work during the mixing process, thereby improving the uniformity of the mixing. On the other hand, the vibration can fully discharge the materials during the unloading process, thereby improving the unloading speed. The position of the discharge port after the mixing tank stops is controlled by the position monitoring device, so that it is downwardly matched with the material receiving device, and automatic unloading is realized by vibration, thereby reducing the complexity and safety risks of manual operation. Thorough unloading also facilitates the subsequent mixing and cleaning work of the mixing tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a fully automatic explosive mixing system of the present invention;

[0018] In the attached figure: 1. driving servo motor; 2. high-precision reducer; 3. first transmission shaft; 4. torque sensor; 5. second transmission shaft; 6. explosion-proof box of torque sensor; 7. expansion sleeve coupling; 8. transmission side bearing seat; 9. transmission side bearing; 10. third transmission shaft; 11. mixing tank; 12. sealing cover; 13. driven shaft; 14. driven bearing seat; 15. driven bearing; 16. rotating slip ring; 17. positioning encoder; 18. pneumatic vibrator; 19. mixed explosive; 20. transmission bracket; 21. driven bracket; 22. driving bracket. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0020] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when used, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example:

[0022] See attached Figure 1 . A fully automatic explosive mixing system of the present invention includes a power device, which transmits power to a mixing tank 11 through a power transmission device, drives the mixing tank 11 to rotate to complete the mixing of materials, and the rear section of the mixing tank 11 is connected to a position monitoring device through a driven device, which can cooperate with the power device to control the position of the unloading port of the mixing tank 11 after rotation, so that it can accurately dock with the material receiving device to realize automatic unloading. The power device includes a driving servo motor 1 and a high-precision reducer 2. The driving servo motor 1 and the high-precision reducer 2 are driven by a worm to reduce the horizontal occupied distance, that is, the driving servo motor 1 is vertically arranged and vertically connected to the high-precision reducer 2. The high-precision reducer 2 can use a planetary reducer in the prior art, which has high transmission efficiency, compact structure, strong bearing capacity and impact resistance. The high-precision reducer 2 or the driving servo motor 1 is fixed to the ground through a driving bracket 22, and the height of the driving bracket 22 satisfies that the mixing tank 11 does not contact the ground during the rotation process. The connection between the driving bracket 22 and the high-precision reducer 2 or the driving servo motor 1 is fastened in a fastening manner, such as a threaded structure to achieve fixed connection.

[0023] In order to ensure the stability and reliability of power transmission, the power transmission device specifically includes a first transmission shaft 3, a second transmission shaft 5 and a third transmission shaft 10. One end of the first transmission shaft 3 is fixedly connected to the output end of the high-precision reducer 2. The connection method can also adopt the fastening method of the prior art, such as the threaded connection method to achieve fastening connection, that is, the high-precision reducer 2 can drive the first transmission shaft 3 to rotate, and the other end of the first transmission shaft 3 is fastened to one end of the second transmission shaft 5. A torque sensor 4 is arranged between the first transmission shaft 3 and the second transmission shaft 5, and they are connected through two sets of couplings. The coupling can preferably be an expansion sleeve coupling 7. The present invention relates to the production of explosives, and further ensures safety. A torque sensor explosion-proof box 6 is arranged at the position of the torque sensor 4 to ensure the safety and accuracy of torque measurement, and provide safety protection for industrial production. The contact position of the explosion-proof box and the first transmission shaft 3 and the second transmission shaft 5 is connected through a bearing structure to ensure that the rotation of the first transmission shaft 3 and the second transmission shaft 5 is not interfered. The bottom of the explosion-proof box is connected to the ground through a bracket, and it is supported together with the driving bracket 22. The other end of the second transmission shaft 5 is connected to the third transmission shaft 10 through an expansion sleeve coupling 7. The setting of the expansion sleeve coupling 7 can ensure the coaxiality of the transmission center and ensure the stability of power transmission. The other end of the third transmission shaft 10 is fixedly connected to the mixing tank 11, thereby driving the rotation of the mixing tank 11 to achieve the mixing of explosives. The third transmission shaft 10 is connected with a transmission side bearing 9, and the transmission side bearing 9 is connected to a transmission bracket 20 through a transmission side bearing seat 8. The transmission bracket 20 is fixed on the ground, and the transmission bracket 20 is further added to play a supporting role. Arranging multiple transmission shafts can better bear the force and support the rotation of the mixing tank 11.

[0024] The mixing device adopts a mixing tank 11 with a relatively mature structure in the prior art, which adopts a structure with narrow ends and wide middle, as shown in the attached Figure 1 As shown, the middle part is fixedly connected to the third transmission shaft 10 by means of screws or threaded fittings. The upper and lower bottom surfaces of the mixing tank 11 are both opened for feeding and unloading, and sealing covers 12 are provided on the two openings, preferably with an automatic opening and closing structure. The mixed explosive 19 is fully mixed in the mixing tank 11.

[0025] The vibrating device is preferably a pneumatic vibrator 18, and several of them are evenly distributed on the outer wall of the mixing tank 11. During the unloading process, the mixed explosive 19 on the inner wall is vibrated by the pneumatic vibrator 18 to prevent the mixture from sticking to the inner wall. At the same time, the vibration can accelerate the unloading rate of the mixed explosive 19. In order to further prevent the mixture from sticking to the inner wall, a conductive hydrophobic coating is sintered at high temperature on the inner wall of the mixing tank 11 to ensure smooth mixing and discharging, and the pneumatic vibrator 18 is used to improve the unloading speed and complete unloading.

[0026] A driven shaft 13 is arranged on the other side of the mixing tank 11 relative to the transmission shaft. The driven shaft 13 is arranged coaxially with the third transmission shaft 10. A driven bearing 15 is arranged on the driven shaft 13. The driven bearing 15 is connected to the driven bracket 21 through the driven bearing seat 14. The driven bracket 21 is connected to the ground and supported together with the driving bracket 22, the transmission bracket 20, etc. A rotating slip ring 16 is arranged at the other end of the driven shaft 13. The stator of the rotating slip ring 16 is fixed on the ground through the bracket support. The rotor of the rotating slip ring 16 is connected to the driven shaft 13 and rotates together. The rotating slip ring 16 is connected to the pneumatic vibrator 18 on the mixing tank 11 through a pipeline. The rotating slip ring 16 is used as a switch to control the communication of the gas, thereby controlling the operation of the pneumatic vibrator 18. During the continuous rotation of the mixing tank 11, the rotating slip ring 16 can control the operation of the pneumatic vibrator 18 to improve the mixing uniformity.

[0027] In order to achieve precise control of the position of the mixing tank 11 after it stops rotating, a positioning encoder 17 is fixedly connected to the other end of the rotor of the rotating slip ring 16. The positioning encoder 17 rotates coaxially with the mixing tank 11. The external controller is electrically connected to the positioning encoder 17 and the driving servo motor 1 respectively, and cooperates with the control to realize the rotation speed and stop position of the mixing tank 11, ensuring that no matter what kind of material receiving device is used, it can be docked with the material receiving device at the best angle to realize automatic unloading.

[0028] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fully automatic explosive mixing system, characterized in that: It includes a power device, a power transmission device, a mixing device, a vibration device and a position monitoring device; the power device transmits power to the mixing device through the power transmission device; the explosive mixture is placed in the mixing device, and the explosive mixture is fully mixed under the drive of the power device; the position monitoring device is connected to the mixing device and is used to detect the orientation of the mixing device; the vibration device is arranged on the mixing device and is used to generate vibration force and transmit it to the explosive mixture.

2. A fully automatic explosive mixing system according to claim 1, characterized in that: The power device comprises a driving servo motor (1) and a reducer; the output end of the driving servo motor (1) is connected to the reducer, and the rotation speed is reduced by the reducer; a driving bracket (22) is provided at the lower end of the driving servo motor (1) and the reducer, and is fixed to the ground or other installation surface through the driving bracket (22).

3. A fully automatic explosive mixing system according to claim 2, characterized in that: The power transmission device comprises a first transmission shaft (3), a second transmission shaft (5) and a third transmission shaft (10); the output end of the reducer, the first transmission shaft (3), the second transmission shaft (5) and the third transmission shaft (10) are connected in sequence; and the third transmission shaft (10) is connected to a mixing device.

4. A fully automatic explosive mixing system according to claim 3, characterized in that: A transmission bracket (20) is provided at the lower end of the power transmission device; a transmission side bearing seat (8) is provided on the transmission bracket (20); a transmission side bearing (9) is installed on the transmission side bearing seat (8); and the transmission side bearing (9) is connected to the first transmission shaft (3) or the second transmission shaft (5) or the third transmission shaft (10).

5. A fully automatic explosive mixing system according to claim 4, characterized in that: A torque sensor (4) is provided at the connection between the first transmission shaft (3) and the second transmission shaft (5); the second transmission shaft (5) and the third transmission shaft (10) are connected via an expansion sleeve coupling (7).

6. A fully automatic explosive mixing system according to claim 5, characterized in that: The mixing device is a mixing tank (11); the upper and lower ends of the mixing tank (11) are both opened and both are provided with sealing covers (12).

7. A fully automatic explosive mixing system according to claim 6, characterized in that: The inner wall of the mixing tank (11) is provided with a conductive hydrophobic coating by high-temperature sintering.

8. A fully automatic explosive mixing system according to claim 7, characterized in that: The position monitoring device is a positioning encoder (17), which is connected to the mixing tank (11) via a driven shaft (13); a driven bracket (21) is provided at the lower end of the driven shaft (13); a driven bearing seat (14) is provided on the driven bracket (21); a driven bearing (15) is installed on the driven bearing seat (14); and the driven bearing (15) is connected to the driven shaft (13).

9. A fully automatic explosive mixing system according to claim 8, characterized in that: The vibration device comprises a plurality of pneumatic vibrators (18) uniformly distributed on the outer wall of the mixing tank (11).

10. A fully automatic explosive mixing system according to claim 9, characterized in that: The driven shaft (13) is connected to a rotating slip ring (16); the rotating slip ring (16) is connected to a plurality of pneumatic vibrators (18).

Images