Automatic blast hole charging device for mining blasting
By introducing a mixing structure of stirring blades and scrapers into the automatic charging device for blast holes in mining blasting, and by using magnets to fix the protective plate, the problems of mixing rate and dust prevention have been solved, and a more efficient and stable charging process has been achieved.
Patent Information
- Application Number
- CN202520810868.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-04-27
AI Technical Summary
Existing automatic charging devices for blasting holes in mining operations suffer from poor mixing rates and lack of dustproof structures, resulting in uneven mixing and the entry of dust and impurities into the equipment, which affects the stability and safety of the charging process.
An automatic drug loading device was designed, which includes a tank structure, a mixing structure, and a protective structure. The device uses a drive motor to drive the stirring blades and scrapers to mix the raw materials, and uses magnets to fix the protective plate to prevent dust from entering, ensuring uniform mixing and cleanliness inside the equipment.
It improves the mixing rate, prevents dust and impurities from entering, and ensures the stability and safety of the loading process.
Smart Images

Figure CN223769379U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blasting technology in mining operations; more specifically, it relates to an automatic charging device for blasting holes in mining operations. Background Technology
[0002] With social development, my country's system for the development and utilization of mineral resources is becoming increasingly sophisticated. In mining engineering construction, explosives are special hazardous materials in high-risk operating environments, and in most cases, specialized pneumatic charging equipment is required to achieve precise construction under complex geological conditions, while ensuring construction safety and efficiency.
[0003] Currently, existing automatic charging devices for blast holes in mining blasting suffer from several drawbacks. Firstly, many lack a structure that allows for rapid and uniform mixing of raw materials, resulting in poor mixing rates. Secondly, many existing devices lack dustproof structures at the feed inlet, while the working environment inside mines is generally harsh, allowing dust and impurities to enter the equipment and potentially affecting the charging process. Therefore, there is an urgent need for an automatic charging device for blast holes in mining blasting to address these issues. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic charging device for blast holes in mining blasting, so as to solve the problems existing in the background art.
[0005] This utility model provides the following technical solution: an automatic charging device for blasting holes in mining operations, comprising:
[0006] The tank structure includes supporting legs, a mixing tank, and a protective top cover;
[0007] The hybrid structure includes a drive motor, a connecting rod, and a connecting plate, with two sets of connecting plates, and the drive motor is mounted on the upper surface of the mixing tank.
[0008] The protective structure includes a connecting pipe, a connecting slot, and a protective plate. There are four sets of connecting slots and two sets of protective plates. One end of the connecting pipe is connected to the interior of the mixing tank.
[0009] Preferably, the lower surface of the mixing tank is fixedly connected to the upper end of the support leg, the protective cover is fixedly connected to the upper end of the mixing tank, and an air intake fan is installed on the outer surface of one side of the mixing tank. The output end of the air intake fan is connected to the interior of the mixing tank. The interior of the lower surface of the mixing tank is connected to a discharge port, and an electric valve is installed inside the discharge port. The support leg can raise the height of the mixing tank from the ground, making it easier for operators to clean the bottom of the mixing tank during use. An external power source can provide power to the air intake fan. After the air intake fan is started, gas can enter the interior of the mixing tank, thereby increasing the pressure inside the mixing tank and allowing the prepared explosive to be discharged through the discharge port.
[0010] Preferably, the upper end of the connecting rod is fixedly connected to the output end of the drive motor, and the connecting rod bearing is connected to the interior of the middle position of the protective cover. A stirring blade is fixedly connected to the outer surface of the connecting rod. An external power source can provide power to the drive motor. After the drive motor starts, its output end can drive the connecting rod to rotate. When the connecting rod rotates, it will drive the stirring blade to rotate synchronously. When the stirring blade rotates, it can mix the raw materials inside the mixing tank.
[0011] Preferably, the two sets of connecting plates are respectively fixedly connected to the outer surfaces of the upper and lower ends of the connecting rod, and both ends of the two sets of connecting plates are fixedly connected to connecting columns, and both outer surfaces of the two sets of connecting columns are fixedly connected to scrapers. The surface of the scrapers is in contact with the inner surface of the mixing tank. When the connecting rod rotates, it will drive the two sets of connecting columns and scrapers to rotate synchronously. When the two sets of scrapers rotate, they can clean the raw materials attached to the inner surface of the mixing tank.
[0012] Preferably, the other end of the connecting pipe is fixedly connected to a feed inlet, and the inside of the feed inlet is connected to the inside of the connecting pipe. The four sets of connecting slots are respectively opened on the inner surface of one end of the feed inlet, so that the operator can add the raw materials into the inside of the mixing tank through the feed inlet when using the equipment.
[0013] Preferably, connecting blocks are fixedly connected to the outer surfaces of both sides of the two sets of protective plates, and the four sets of connecting blocks are respectively engaged inside the four sets of connecting slots. Magnets are fixedly connected to the interior of the opposite side surfaces of the two sets of protective plates, and connecting pull rings are fixedly connected to the outer surfaces of the opposite sides of the two sets of protective plates. The engagement between the four sets of connecting blocks and the connecting slots can limit the position of the two sets of protective plates, preventing them from detaching from the inlet when moving. When the opposite ends of the two sets of protective plates are pressed together, the position of the two sets of protective plates can be fixed by the magnetic force of the two sets of magnets.
[0014] The technical effects and advantages of this utility model are as follows: After the drive motor is started, its output end can drive the connecting rod to rotate. When the connecting rod rotates, it will drive the stirring blade to rotate synchronously. When the stirring blade rotates, it can mix the raw materials inside the mixing tank. When the connecting rod rotates, it will drive the two sets of connecting columns and scrapers to rotate synchronously. When the two sets of scrapers rotate, they can clean the raw materials attached to the inner surface of the mixing tank. This design can accelerate the mixing rate of the raw materials inside the mixing tank to a certain extent and can prevent the raw materials from adhering to the inner surface of the mixing tank as much as possible.
[0015] This invention uses the magnetic force of two sets of magnets to fix the position of the two sets of protective plates after they are attached together. At this time, the two sets of protective plates can protect the inside of the feed inlet. The engagement between the four sets of connecting blocks and the connecting slots can limit the position of the two sets of protective plates, preventing them from falling out of the feed inlet when moving. This improves the stability of the two sets of protective plates during use. This design can minimize the entry of dust and other impurities from inside the mine into the mixing tank, thus ensuring the stability of the loading process. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is an exploded three-dimensional structural diagram of the present invention.
[0018] Figure 3 This is a three-dimensional exploded view of the tank structure of this utility model.
[0019] Figure 4 This is a three-dimensional structural diagram of the hybrid structure of this utility model.
[0020] Figure 5 This is a schematic diagram of the protective structure of this utility model in use.
[0021] Figure 6 This is a three-dimensional partial explosion diagram of the protective structure of this utility model.
[0022] The attached diagram is labeled as follows: 1. Tank structure; 11. Support leg; 12. Mixing tank; 13. Protective cover; 14. Air inlet; 15. Discharge port; 2. Mixing structure; 21. Drive motor; 22. Connecting rod; 23. Stirring blade; 24. Connecting plate; 25. Connecting column; 26. Scraper; 3. Protective structure; 31. Connecting pipe; 32. Inlet; 33. Connecting slot; 34. Protective plate; 35. Connecting block; 36. Magnet; 37. Connecting pull ring. Detailed Implementation
[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The automatic charging device for blasting holes in mining is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] Example 1
[0025] like Figures 1 to 4 As shown, this utility model provides an automatic charging device for blasting holes in mining, including: a tank structure 1, which includes a support leg 11, a mixing tank 12, and a protective cover 13. The lower surface of the mixing tank 12 is fixedly connected to the upper end of the support leg 11, and the protective cover 13 is fixedly connected to the upper end of the mixing tank 12. An air intake fan 14 is installed on the outer surface of one side of the mixing tank 12, and the output end of the air intake fan 14 is connected to the interior of the mixing tank 12. The interior of the lower surface of the mixing tank 12 is connected to a discharge port 15, and the discharge port 15 is connected to the interior of the mixing tank 12. An electric valve is installed inside the outlet 15. The support legs 11 can raise the mixing tank 12 above the ground, making it easier for operators to clean the bottom of the mixing tank 12. An external power source can provide power to the air intake fan 14. After the air intake fan 14 is started, gas can enter the interior of the mixing tank 12, thereby increasing the pressure inside the mixing tank 12. The prepared explosive can be discharged through the outlet 15. The opening and closing of the electric valve inside the outlet 15 can be controlled by the external power source.
[0026] The mixing structure 2 includes a drive motor 21, a connecting rod 22, and a connecting plate 24. Two sets of connecting plates 24 are provided. The drive motor 21 is mounted on the upper surface of the mixing tank 12. The upper end of the connecting rod 22 is fixedly connected to the output end of the drive motor 21. The connecting rod 22 is bearing-connected to the interior of the protective cover 13 at its center. A stirring blade 23 is fixedly connected to the outer surface of the connecting rod 22. Two sets of connecting plates 24 are respectively fixedly connected to the outer surfaces of the upper and lower ends of the connecting rod 22. Connecting posts 25 are fixedly connected to both ends of each set of connecting plates 24. Scrapers 26 are fixedly connected to the outer surfaces of each set of connecting posts 25. The surface of the scrapers 26 is in contact with... The inner surface of the mixing tank 12 can be powered by an external power source to drive the motor 21. After the motor 21 is started, its output end can drive the connecting rod 22 to rotate. When the connecting rod 22 rotates, it will drive the stirring blade 23 to rotate synchronously. When the stirring blade 23 rotates, it can mix the raw materials inside the mixing tank 12. This design can accelerate the mixing rate of the raw materials inside the mixing tank 12 to a certain extent. When the connecting rod 22 rotates, it will drive the two sets of connecting columns 25 and scrapers 26 to rotate synchronously. When the two sets of scrapers 26 rotate, they can clean the raw materials adhering to the inner surface of the mixing tank 12. This design can prevent the raw materials from adhering to the inner surface of the mixing tank 12 as much as possible.
[0027] Example 2
[0028] like Figures 1 to 6As shown, this embodiment also proposes a protective structure 3, which includes a connecting pipe 31, connecting slots 33, and protective plates 34. Four sets of connecting slots 33 and two sets of protective plates 34 are provided. One end of the connecting pipe 31 is connected to the interior of the mixing tank 12, and the other end of the connecting pipe 31 is fixedly connected to an inlet 32, the interior of which is connected to the interior of the connecting pipe 31. The four sets of connecting slots 33 are respectively opened on the inner surface of one end of the inlet 32. Connecting blocks 35 are fixedly connected to the outer surfaces of both sides of the two sets of protective plates 34, and the four sets of connecting blocks 35 are respectively engaged inside the four sets of connecting slots 33. Magnets 36 are fixedly connected to the interior of the opposite side surfaces of the two sets of protective plates 34, and magnets 36 are fixedly connected to the outer surfaces of the opposite sides of the two sets of protective plates 34. Each of the two sets of protective plates 34 is fixedly connected with a connecting pull ring 37. The engagement between the four sets of connecting blocks 35 and the connecting slots 33 can limit the movement of the two sets of protective plates 34, preventing them from detaching from the feed inlet 32 during movement. The two sets of connecting pull rings 37 make it easier for workers to pull the two sets of protective plates 34. After the two sets of protective plates 34 are separated, workers can add raw materials into the mixing tank 12 through the feed inlet 32. When the opposite ends of the two sets of protective plates 34 are attached to each other, the position of the two sets of protective plates 34 can be fixed by the magnetic force of the two sets of magnets 36. This design can minimize the entry of dust and other impurities from inside the mine into the mixing tank 12, thereby ensuring the stability of the loading process.
[0029] Working principle: When the equipment is in use, first pull the two sets of connecting rings 37 to move the two sets of protective plates 34 away from each other. Then, add the raw material into the mixing tank 12 through the feed port 32 and the connecting pipe 31. Then pull the two sets of connecting rings 37 to move the two sets of protective plates 34 into contact with each other. At this time, the two sets of magnets 36 will fix the position of the two sets of protective plates 34 through their own magnetic force.
[0030] Then, the drive motor 21 is started, which drives the connecting rod 22 to rotate. When the connecting rod 22 rotates, it drives the stirring blade 23 and the two sets of scrapers 26 to rotate synchronously. When the stirring blade 23 rotates, it can mix the raw materials inside the mixing tank 12. When the two sets of scrapers 26 rotate, they can clean the raw materials adhering to the inner surface of the mixing tank 12. After the mixing is completed, the power source of the drive motor 21 is cut off. Then, the conveying pipeline is connected to the output end of the discharge port 15. Then, the air blower 14 is started to allow gas to enter the interior of the mixing tank 12. Then, the pressure inside the mixing tank 12 is increased. Finally, the opening and closing of the electric valve inside the discharge port 15 is controlled to allow the prepared explosive to be discharged through the discharge port 15. The explosive is then loaded into the borehole through the conveying pipeline. The above is the entire working principle of this utility model (the air blower 14, electric valve and drive motor 21 used in this application are all products that can be purchased directly on the market. Their principles, connection methods and control methods are all existing technologies known to those skilled in the art, so they will not be described in detail here).
[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0032] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0033] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A hole automatic charging device for mining blasting, characterized by, Include: Tank structure (1), the tank structure (1) includes support leg (11), mixing tank (12) and protective upper cover (13); Mixing structure (2), the mixing structure (2) includes drive motor (21), connecting rod (22) and connecting plate (24), and connecting plate (24) is provided with two groups, and drive motor (21) is installed on the upper surface of the mixing tank (12); Protective structure (3), the protective structure (3) includes connecting pipe (31), connecting slot (33) and protective plate (34), and connecting slot (33) is provided with four groups, and the protective plate (34) is provided with two groups, one end of the connecting pipe (31) and the inside of the mixing tank (12) are connected.
2. The automatic hole charging device for mining blasting according to claim 1, characterized in that: The lower surface of the mixing tank (12) and the upper end of the support leg (11) are fixedly connected, the protective upper cover (13) is fixedly connected to the upper end of the mixing tank (12), and the outer surface of one side of the mixing tank (12) is provided with an air inlet fan (14), and the output end of the air inlet fan (14) is communicated with the inside of the mixing tank (12), the inside of the lower surface of the mixing tank (12) is communicated with a discharge port (15), and the inside of the discharge port (15) is provided with an electric valve.
3. The automatic hole charging device for mining blasting according to claim 1, characterized in that: The upper end of the connecting rod (22) is fixedly connected with the output end of the drive motor (21), and the connecting rod (22) is bearing connected to the inside of the middle position of the protective upper cover (13), and the outer surface of the connecting rod (22) is fixedly connected with stirring blades (23).
4. The automatic hole charging device for mining blasting according to claim 1, characterized in that: Two groups of connecting plates (24) are fixedly connected to the outer surfaces of the upper and lower ends of the connecting rod (22), respectively, both ends of the two groups of connecting plates (24) are fixedly connected with connecting columns (25), and the outer surfaces of the two groups of connecting columns (25) are fixedly connected with scrapers (26), and the surfaces of the scrapers (26) are attached to the inner surfaces of the mixing tank (12).
5. The automatic hole charging device for mining blasting according to claim 1, characterized in that: The other end of the connecting pipe (31) is fixedly connected with a feeding port (32), and the inside of the feeding port (32) is communicated with the inside of the connecting pipe (31), and four groups of connecting slots (33) are respectively formed in the inner surfaces of one end of the feeding port (32).
6. The automatic hole charging device for mining blasting according to claim 1, characterized in that: The outer surfaces of both sides of the two groups of protective plates (34) are fixedly connected with connecting plug blocks (35), respectively, four groups of connecting plug blocks (35) are respectively clamped in the interiors of four groups of connecting slots (33), the interiors of the opposite side surfaces of the two groups of protective plates (34) are fixedly connected with magnets (36), and the outer surfaces of the opposite sides of the two groups of protective plates (34) are fixedly connected with connecting pull rings (37).