In-hole mixed reaction type borehole filling device

Abstract

The application discloses a hole-in-mixing reaction type blast hole filling device, and belongs to the technical field of mine blasting construction, which comprises a traveling car body, a multi-connecting rod adjusting structure, a blast hole filling guide rail, an explosive filling structure and a stemming plugging structure, realizes integrated continuous operation of traveling, accurate positioning, charging and plugging in the blast hole filling process, and when the device is operated, the traveling car body is moved to the vicinity of the blast hole, and the guide rail is accurately aligned with the blast hole by the multi-connecting rod adjusting structure. The stemming plugging structure first acts, so that the blast hole baffle covers the hole mouth; then, the emulsion explosive is delivered to the hole bottom by the explosive filling structure. After charging is completed, the stemming plugging structure injects two kinds of liquid raw materials into the blast hole through the supply holes on the blast hole baffle, the raw materials are mixed and reacted in the hole, and a high-strength stemming plugging layer is formed by solidification. The integrated design effectively solves the problems of low efficiency, uneven filling quality and poor safety in high-risk environment in traditional manual operation, and is especially suitable for large-scale open-pit mine blasting operation scenes.

Description

Technical Field

[0001] This invention belongs to the field of mining blasting construction technology, specifically relating to an in-hole mixing reaction type blast hole filling device. Background Technology

[0002] Hole packing is a crucial step in blasting operations, its quality directly impacting blasting energy utilization, rock fragmentation effectiveness, and operational safety. In open-pit mining, the blasting process mainly includes four steps: hole loading, hole packing, detonation network connection, and detonation. The core purpose of packing is to fully utilize the energy of the explosive explosion and improve the rock fragmentation effect. Traditional packing materials often use rock powder and slag from drilling or specialized stemming material. Currently, mines both domestically and internationally widely recognize the importance of mechanized packing, as it not only improves operational efficiency but also significantly reduces the safety risks of manual operation. With the development of blasting technology, the requirements for packing quality and efficiency are increasing, driving innovation in a series of packing methods and devices.

[0003] Manual filling remains a common method in current technology. It is labor-intensive, inefficient, exposes personnel to dusty environments, and suffers from significant quality fluctuations, easily leading to incomplete filling, affecting blasting effectiveness, and even causing safety accidents. Mechanical devices using specialized stemming material typically mix the stemming material before filling it into the borehole. This mechanical filling method requires high reliability of the mixed stemming material, and the mixing equipment is difficult to clean and prone to clogging. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide an in-hole mixing reaction-type borehole filling device to solve the technical problem that the special borehole filling equipment is prone to clogging after the borehole mud is mixed in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a vehicle body, a multi-link structure, a borehole filling guide rail, an explosive filling structure, and a borehole mud sealing structure; The vehicle body is used for the overall movement of the device; There are multiple multi-link structures, which are installed at the front end of the traveling vehicle body to adjust the position and attitude of the end effector. The end of each multi-link structure is provided with a long strip-shaped rail seat. The borehole filling guide rail is fixed parallel to the side of the rail base; The explosive filling structure includes an emulsion explosive supply pump and an explosive filling pipe. The explosive filling pipe is moved along the borehole filling guide rail with the explosive filling structure. The emulsion explosive supply pump is connected to the explosive filling pipe. The stemming sealing structure includes a raw material supply pipe, a raw material supply pump, and a borehole baffle. The borehole baffle is moved along the borehole filling guide rail with the stemming sealing structure. The stemming sealing structure is located at the moving front end of the explosive filling pipe. The borehole baffle has a filling pipe perforation and two raw material supply holes facing the moving direction of the explosive filling pipe. The explosive filling pipe slides through the filling pipe perforation. The two raw material supply holes are respectively connected to one of the raw material supply pipes, and the raw material supply pipes are connected to the raw material supply pump.

[0006] Optionally, the explosive filling structure further includes an explosive filling movable seat and an explosive transfer seat. The explosive filling movable seat is movably mounted on the borehole filling guide rail. The explosive transfer seat is fixed on the explosive filling movable seat. The explosive filling pipe is connected to the front end of the explosive transfer seat. The emulsion explosive supply pump is connected to the explosive connecting seat. The explosive connecting seat is connected to the explosive filling pipe.

[0007] Optionally, the blasting mud sealing structure further includes a sealing movable seat and a supply adapter seat. The sealing movable seat is movably mounted on the blast hole filling guide rail, the supply adapter seat is fixed on the sealing movable seat, the blast hole baffle is fixed at the front end of the supply adapter seat, the explosive filling tube slides through the supply adapter seat and the blast hole baffle in sequence, and the raw material supply tube passes through the supply adapter seat in sequence and communicates with the raw material supply hole.

[0008] Optionally, the explosive filling structure further includes stirring blades, a main stirring gear, and a secondary stirring gear. The stirring blades are straight plate-shaped structures. Several stirring blades are fixedly arranged around the outer side of the front end of the raw material supply pipe. The axis of the raw material supply pipe is parallel to the stirring blades. The raw material supply pipe is rotatably connected to the explosive adapter seat. The main stirring gear is coaxially fixed to the outside of the explosive filling pipe. The secondary stirring gear is driven by a motor and rotated on the explosive filling moving seat. The secondary stirring gear meshes with the main stirring gear.

[0009] Optionally, the perforation of the filling tube includes a main hole matching the outer diameter of the explosive filling tube and a groove through which the stirring blade passes.

[0010] Optionally, the mud sealing structure further includes a blocking plate, wherein the side of the borehole baffle is provided with a slot, and the blocking plate is driven by an electric cylinder to slide into the slot and block the filling tube perforation.

[0011] Optionally, the explosive filling structure further includes a tube bearing and an elastic ball pin. The tube bearing is fixedly mounted on the explosive filling moving seat. The explosive filling tube is rotatably connected to the tube bearing. A pin hole is also provided on the overlapping surface of the explosive filling tube and the tube bearing. The elastic ball pin is driven by an electric cylinder to move and is mounted in the tube bearing and faces the pin hole. The elastic ball pin is inserted into the pin hole. The movement path of the stirring blade is aligned with the groove.

[0012] Optionally, it also includes a detonator box, wherein a detonator outlet is provided on the bottom side of the detonator box for the detonator to pass through, and the detonator box is moved outside the borehole baffle toward the explosive filling tube and the detonator outlet is aligned with the opening of the retracted explosive filling tube.

[0013] Optionally, the mud sealing structure further includes a lifting plate, which is driven by an electric cylinder to move and is disposed outside the borehole baffle. The lifting plate is fixedly connected to the blocking insert plate, and the detonator is fixedly connected to the lifting plate.

[0014] Optionally, the detonator box includes a box body, a box cover, a push plate, an ejection spring, and an insert rod. The box body has an inner cavity that accommodates arranged detonators from the top inward. The detonator outlet is located on the bottom side of the box body. The box cover closes the top opening of the box body. The push plate is slidably disposed within the box body. The ejection spring abuts against the box cover and the push plate. The insert rod is slidably disposed at the bottom of the box body driven by an electric cylinder. The insert rod is used to push the detonator from the detonator outlet into the explosive filling tube.

[0015] The beneficial effects of this invention are as follows: 1. The device delivers the gunning mud mixture into the borehole. This in-hole mixing method utilizes the fluidity and chemical reaction characteristics of the raw materials, allowing the mixture to fully fuse, expand, and solidify within the borehole, forming a dense sealing layer. The sealing layer formed by in-hole mixing can adhere tightly to the borehole wall, significantly improving the sealing effect. Compared to filling the borehole after mixing, this method effectively avoids pipeline blockage caused by premature reaction of the raw materials during transportation, while ensuring the uniformity and reliability of the final sealing structure.

[0016] 2. This device enables mechanized continuous operation, eliminating the need for operators to manually fill the boreholes with stemming material in high-risk areas. Especially for complex conditions such as upward-facing boreholes or water-rich boreholes, this device can ensure effective sealing under varying hydrogeological conditions by adjusting the material ratio and injection pressure, overcoming the problems of traditional stemming material being easily washed away by water flow or falling off due to its own weight.

[0017] 3. The in-hole mixing process significantly reduces the probability of human contact with hazardous materials. Materials are transported and reacted within closed pipelines and boreholes, preventing operators from being directly exposed to chemical substances and improving the downhole working environment.

[0018] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 A schematic diagram of the overall structure of the filling device according to an embodiment of the invention; Figure 2 A schematic diagram of the structure on the borehole filling guide rail of this invention embodiment; Figure 3 for Figure 2 Enlarged view of point c; Figure 4 for Figure 2 Enlarged schematic diagram at point d; Figure 5 A cross-sectional view of the pipe bearing seat in an embodiment of the present invention; Figure 6 A cross-sectional view of the borehole retainer in an embodiment of the invention; Figure 7 A cross-sectional view of a detonator box according to an embodiment of the present invention; Figure 8 A schematic diagram of the clay filling embodiment of this invention; The following are labeled in the attached diagram: 1. Traveling vehicle body; 2. Multi-link structure; 21. Rail seat; 4. Borehole filling guide rail; 5. Explosive filling structure; 51. Explosive filling tube; 511. Pin hole; 52. Explosive filling moving seat; 53. Explosive transfer seat; 54. Stirring blade; 55. Stirring main gear; 56. Stirring secondary gear; 57. Pipe bearing seat; 58. Elastic ball head pin; 6. Clay sealing structure; 61. Raw material supply. 62. Pipe; 62. Hole retainer; 621. Filler tube perforation; 6211. Main hole; 6212. Groove; 622. Raw material supply hole; 623. Slot; 63. Sealing moving seat; 64. Supply adapter seat; 65. Blocking insert plate; 66. Lifting plate; 7. Detonator box; 71. Box body; 711. Detonator outlet; 712. Inner cavity; 72. Box cover; 73. Push plate; 74. Push-out spring; 75. Insert rod. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0021] Please refer to the accompanying drawings. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the disclosed technical content. Furthermore, terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0022] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0023] This invention provides an in-hole mixing reaction type borehole filling device, such as... Figure 1 , Figure 2 , Figure 3 and Figure 8As shown, this invention relates to an in-hole mixing reaction type borehole filling device, the core of which is the integration of all functions including travel, positioning, filling, and sealing. The traveling vehicle 1, serving as the basic mobile platform of the device, typically consists of a steel frame, drive wheels, a steering mechanism, and a power system (such as a battery or diesel engine). Its bottom can be equipped with anti-slip tires or tracks to adapt to rugged mine terrain. The multi-link structure 2 employs multiple hinged rotating rod units, each made of high-strength aluminum alloy. A servo motor drives the hinge points to rotate, thereby precisely adjusting the position and orientation of the end rail base 21. The rail base 21 is a long, strip-shaped steel component. The borehole filling guide rail 4, made of high-strength aluminum alloy, is bolted parallel to the side of the rail base 21, making it lightweight and wear-resistant. Precision linear slide rails are provided on the guide rail to provide accurate movement paths for the explosive filling structure 5 and the borehole mud sealing structure 6. In the explosive filling structure 5, an emulsion explosive supply pump is mounted on the traveling vehicle 1 and connected to the explosive filling pipe 51 via a high-pressure hose. The explosive filling tube 51 is made of corrosion-resistant, high-strength engineering plastic, capable of withstanding the high-pressure delivery of emulsion explosives. The mud sealing structure 6 has two raw material supply pipes 61, used to deliver two different fluid raw materials, such as polyurethane prepolymer and catalyst. The raw material supply pump is a meterable plunger pump, ensuring the two raw materials are delivered in a preset ratio. The borehole baffle 62 is larger than the standard borehole diameter, and the filling tube perforation 621 on it matches the outer diameter of the explosive filling tube 51, allowing the explosive filling tube 51 to slide freely. Two raw material supply holes 622 are located on both sides of the filling tube perforation 621, communicating with the raw material supply tube 61, with their outlets facing the inside of the borehole. During operation, the traveling vehicle 1 first moves to the vicinity of the borehole, and the multi-link structure 2 adjusts the position and orientation of the borehole filling guide rail 4 to precisely align it with the borehole. The borehole sealing structure 6 moves along the guide rail, causing the borehole baffle 62 to cover the borehole opening. Then, the explosive filling structure 5 moves along the guide rail, inserting the explosive filling tube 51 into the bottom of the borehole for loading. After loading, the borehole sealing structure 6 begins operation, injecting two fluid materials into the borehole through the material supply hole 622. These materials mix, react, and solidify within the borehole, forming an effective borehole sealing layer. This integrated design significantly improves the efficiency and safety of borehole filling, reduces manual intervention, and is particularly suitable for large-scale blasting operations.

[0024] In further proposals, such as Figure 2 and Figure 4As shown, the explosive filling structure 5 also includes an explosive filling moving seat 52 and an explosive transfer seat 53. The explosive filling moving seat 52 is a slider structure with a linear bearing inside, which precisely matches the linear slide rail on the borehole filling guide rail 4 to achieve smooth and stable movement. The moving seat is driven by a servo motor and achieves precise displacement control through a gear and rack mechanism. The explosive transfer seat 53 is fixed to the front end of the explosive filling moving seat 52 by bolts and has an internal flow channel structure. The emulsion explosive supply pump is connected to the inlet on the rear side of the explosive transfer seat 53 through a high-pressure hose. The front side of the explosive transfer seat 53 has a quick connector that connects to the explosive filling pipe 51. The explosive transfer seat 53 has a one-way valve inside to prevent explosive backflow and is equipped with a pressure sensor to monitor the explosive delivery pressure in real time.

[0025] During operation, once the device is positioned, the control system commands the explosive filling moving seat 52 to move forward along the guide rail. The moving seat drives the explosive transfer seat 53 and the explosive filling tube 51 to advance together towards the borehole. When the front end of the explosive filling tube 51 reaches the bottom of the borehole, the moving seat stops advancing, and the emulsion explosive supply pump starts, pressing the emulsion explosive into the explosive filling tube 51 through the explosive transfer seat 53. After filling is completed, the explosive filling moving seat 52 retracts backward to make room for the borehole mud sealing operation.

[0026] In further proposals, such as Figure 2 and Figure 3 As shown, the borehole sealing structure 6 also includes a sealing moving seat 63 and a supply adapter 64. The sealing moving seat 63 is similar in structure to the explosive filling moving seat 52 and is used to withstand the large reaction force during the borehole sealing operation. The sealing moving seat 63 is also equipped with a linear bearing and is driven by an independent servo motor, allowing it to move independently on the borehole filling guide rail 4. The supply adapter 64 is fixed to the front end of the sealing moving seat 63 by bolts and has two independent flow channels inside, corresponding to the two raw material supply pipes 61 respectively. A support rod is provided on the front side of the supply adapter 64, which is connected to the borehole baffle 62.

[0027] The borehole baffle 62 is circular and must ensure complete coverage of the borehole. A filling tube perforation 621 at the center of the baffle mates with the explosive filling tube 51, effectively sealing the gap and preventing backflow of the borehole mud. Two raw material supply holes 622 are symmetrically distributed on both sides of the filling tube perforation 621, and spiral guide grooves can be installed inside to generate rotational motion when the raw materials are ejected, promoting mixing. During the operation, the sealing moving seat 63 moves forward along the guide rail, driving the supply adapter seat 64 and the borehole baffle 62 towards the borehole opening. The moving seat stops when the borehole baffle 62 is flush with the borehole opening plane. After the explosive filling is completed, the two raw material supply tubes 61 connect to the two raw material supply holes 622 on the borehole baffle 62 through the two flow channels of the supply adapter seat 64. The raw material supply pump starts, transporting the two fluid raw materials to the borehole through their respective pipes. The two raw materials are completely isolated during transport and only begin to mix after being injected into the borehole. This design avoids pipeline blockage caused by premature mixing of raw materials during transportation. This embodiment uses a two-component raw material mixing and solidification method inside the borehole, resulting in a more uniform and denser borehole mud with better sealing effect. At the same time, the contact surface of the borehole baffle 62 can be equipped with a rubber seal, which can effectively seal and prevent raw material leakage from the borehole, improve raw material utilization, and reduce operating costs.

[0028] In further proposals, such as Figure 3 , Figure 4 and Figure 8 As shown, this embodiment relates to the stirring function of the explosive filling structure 5, specifically including stirring blades 54, a main stirring gear 55, and a secondary stirring gear 56. The stirring blades 54 are straight plate-shaped structures made of high-strength stainless steel plates. Six stirring blades 54 are fixed to the outer front end of the raw material supply pipe 61 in an equally spaced ring manner. The blade plane is parallel to the axis of the raw material supply pipe 61. When the supply pipe rotates, the stirring blades 54 can form a strong radial flow in the borehole. The main stirring gear 55 is coaxially fixed to the outer side of the explosive filling pipe 51, located in front of the explosive adapter seat 53. The secondary stirring gear 56 is driven by a servo motor mounted on the explosive filling moving seat 52. The main stirring gear 55 and the secondary stirring gear 56 mesh with each other.

[0029] During operation, when the borehole sealing work begins, the control system activates the stirring motor, driving the stirring auxiliary gear 56 to rotate. Since the stirring auxiliary gear 56 meshes with the stirring main gear 55, power is transmitted to the stirring main gear 55, causing the entire explosive filling tube 51 and the stirring blade 54 fixed at its front end to rotate, accompanied by the movement of the explosive filling moving seat 52. The rotating stirring blade 54 generates shearing and mixing action within the borehole, ensuring thorough mixing of the two fluid materials and guaranteeing that the mixed borehole mud evenly fills every space within the borehole. Simultaneously, the rotational motion of the stirring blade 54 helps to expel air from the borehole, preventing air bubble entrainment and forming a denser borehole sealing layer. Furthermore, when the borehole mud material is an expansive material, the stirring action promotes its expansion reaction, allowing the mud to better adhere to the borehole wall and improving the sealing effect. This innovative design solves the common problems of uneven mixing and insufficient filling in traditional borehole mud filling, significantly improving blasting effectiveness and operational safety.

[0030] In further proposals, such as Figure 3 As shown, this embodiment elaborates on the special design of the filling tube perforation 621. The filling tube perforation 621 is located at the center of the borehole baffle 62 and consists of two parts: first, a main hole 6211 that precisely matches the outer diameter of the explosive filling tube 51, typically with a diameter 0.1-0.2 mm larger than the outer diameter of the filling tube, ensuring free sliding of the filling tube while minimizing gaps; second, a groove 6212 extending outward from the wall of the main hole 6211, with a width slightly greater than the thickness of the stirring blade 54 (typically 3.5-4 mm) and a length slightly greater than the width of the stirring blade 54, ensuring smooth passage of the stirring blade 54. The overall shape of the main hole 6211 and the groove 6212 resembles a keyhole, machined on a stainless steel baffle using wire cutting technology, with the inner wall polished to reduce the coefficient of friction.

[0031] During operation, this design enables the explosive filling tube 51 with stirring blades 54 to pass through the borehole baffle 62. When explosive filling is required, the explosive filling structure 5 moves forward, and the orientation of the stirring blades 54 is adjusted by the control mechanism to align them with the grooves 6212. As the filling tube advances, the stirring blades 54 smoothly pass through the borehole baffle 62 along the grooves 6212 and enter the borehole. After loading is complete, the filling tube is retracted. Again, the stirring blades 54 must first be adjusted to align with the grooves 6212 before smoothly passing through the baffle and retracting. This design allows the borehole baffle 62 to both seal and guide the flow without hindering the normal operation of the stirring blades 54. This innovation significantly improves the uniformity and density of the borehole mud filling, thereby enhancing the blasting effect. Simultaneously, the structure is simple and reliable, with only a limited increase in manufacturing cost, making it highly practical.

[0032] In further proposals, such as Figure 6As shown, the borehole sealing structure 6 also includes a blocking plate 65, which is a rectangular iron plate with dimensions larger than the perforation size to ensure complete coverage. One side of the plate is moved by an electric cylinder, and a slot 623 is formed inward on the side of the borehole baffle 62. During the borehole filling operation, the blocking plate 65 prevents the borehole mud from flowing back. After the explosive filling tube 51 is retracted, the electric cylinder pushes the blocking plate 65 to slide along the slot 623 until it completely covers the filling tube perforation 621. At this time, the two raw material supply holes 622 are isolated from the filling tube perforation 621, and the raw material supply pump is activated, injecting the two fluid raw materials into the borehole at a certain pressure. Due to the blocking effect of the blocking plate 65, the raw materials will not flow back out of the filling tube perforation 621. Simultaneously, the presence of the plate also ensures that the borehole mud forms sufficient pressure within the borehole, promoting its penetration into the gaps in the borehole wall and improving the filling quality. After the filling operation is completed, the electric cylinder pulls the blocking plate 65 back to its original position, so that the filling tube perforation 621 is unblocked again, preparing for the next round of operation. This active blocking plate 65 responds faster and has a more reliable seal.

[0033] In further proposals, such as Figure 5 As shown, this embodiment relates to a positioning and locking mechanism for the explosive filling tube 51, specifically including a tube bearing 57 and an elastic ball head pin 58. The tube bearing 57 is fixed to the explosive filling moving seat 52 by bolts. A circular hole is machined in the center of the tube bearing 57, incorporating a self-lubricating bearing to support the explosive filling tube 51 and allow it to rotate freely. A mounting hole is radially formed inside the tube bearing 57, housing the elastic ball head pin 58, which is driven to reciprocate by an electric cylinder. The pin hole 511 is located in the section where the explosive filling tube 51 overlaps with the tube bearing 57.

[0034] During device operation, this positioning mechanism ensures accurate alignment of the stirring blade 54 with the groove 6212 on the borehole baffle 62. When the stirring blade 54 needs to pass through the groove 6212, the control system first energizes the electric cylinder that drives the elastic ball pin 58. The electric cylinder drives the elastic ball pin 58 to move towards the explosive filling tube 51 and abut against the side of the explosive filling tube 51. At this time, the explosive filling tube 51 can rotate freely. Adjusting the rotation angle of the filling tube allows the elastic ball pin 58 to align with and engage with the pin hole 511 of the explosive filling tube 51. At this time, the stirring blade 54 is accurately aligned with the groove 6212, achieving circumferential positioning of the filling tube. This design ensures that the stirring blade 54 can accurately align with the groove 6212 every time and smoothly pass through the borehole baffle 62. The elastic ball pin 58 implemented in this case has accurate and reliable positioning, fast response speed, low wear, and long service life.

[0035] In further proposals, such as Figure 6As shown, this embodiment details the implementation of the automatic detonator placement function, focusing on the collaborative working mechanism of the detonator box 7 and the borehole baffle 62. The detonator box 7 can accommodate multiple wireless detonators. A detonator outlet 711 is provided on the bottom side of the detonator box 7. The detonator box 7 is connected to the outside of the borehole baffle 62 via a bracket and can move under the drive of an electric cylinder, so that the detonator outlet 711 is precisely aligned with the opening of the retracted explosive filling tube 51.

[0036] In the operation process, when the emulsion explosive is filled to the point where a wireless detonator needs to be embedded, the explosive filling tube 51 retracts. Retraction stops when the tube opening reaches a predetermined position outside the borehole retainer 62. The control system instructs the detonator box 7's moving mechanism to align the detonator outlet 711 of the detonator box 7 with the opening of the explosive filling tube 51. After alignment, the detonator box 7 pushes a detonator into the explosive filling tube 51. Subsequently, the detonator box 7 returns to its original position, and the explosive filling tube 51 moves forward again, delivering the detonator into the already filled explosive in the borehole, followed by subsequent emulsion explosive filling. This automated placement method greatly improves safety and reduces the risk of manual contact with the detonator. Simultaneously, mechanized operation ensures accurate placement of the protective tube, contributing to consistent blasting results. This innovation integrates the two processes of loading explosives and placing detonators onto the same equipment, achieving full automation of the borehole filling process, significantly improving operational efficiency and safety, and is particularly suitable for large-scale blasting operations requiring the placement of multiple detonators.

[0037] In further proposals, such as Figure 6 As shown, this embodiment further refines the detonator placement mechanism. The stemming sealing structure 6 also includes a lifting plate 66, which is a flat plate driven vertically by a small electric cylinder. The lifting plate 66 and the blocking insert plate 65 are fixedly connected by a connecting rod to achieve synchronous movement. The detonator box 7 is fixed on the lifting plate 66 by a bracket and moves together with the lifting plate 66.

[0038] In detonator placement operations, this linkage design achieves precise coordination of multiple actions. When a detonator needs to be placed, the control system first instructs the electric cylinder of the blocking plate 65 to actuate, inserting the blocking plate 65 into the filling tube perforation 621. Simultaneously, due to the mechanical connection between the lifting plate 66 and the blocking plate 65, the lifting plate 66 descends, causing the detonator box 7 to move downwards, precisely aligning the detonator outlet 711 with the opening of the explosive filling tube 51. This mechanical linkage ensures the synchronization of the two actions, simplifying the control logic. After the detonator placement is completed, the blocking plate 65 retracts, and the lifting plate 66 rises, causing the detonator box 7 to leave the filling tube area, making room for subsequent operations. Compared with independent electric control, this linkage design is more reliable and avoids the complexity of multi-actuator coordinated control. At the same time, the mechanical connection ensures high synchronization accuracy and fast response.

[0039] In further proposals, such as Figure 7 As shown, this embodiment details the internal structure of the detonator box 7 and the detonator ejection mechanism. The detonator box 7 includes a box body 71, a box cover 72, a push plate 73, an ejection spring 74, and an insertion rod 75. The box body 71 is injection molded from engineering plastic and has an internal cavity 712 for arranging wireless detonators. The box cover 72 is connected to the box body 71 by screws. The push plate 73 is slidably disposed within the box body 71, and the ejection spring 74 abuts against the box cover 72 and the push plate 73 to ensure that the detonator always moves in the outlet direction. The insertion rod 75 is driven by a small electric cylinder and can slide at the bottom of the box body 71 to eject the detonator from the detonator outlet 711.

[0040] During detonator placement, the detonators inside the housing 71 maintain pressure towards the outlet under the action of the push-out spring 74. Once the detonator housing 71 is aligned with the opening of the explosive filling tube 51, the insert rod 75 is activated, moving forward to push the bottom detonator out of the detonator outlet 711 and into the explosive filling tube 51. The push-out spring 74 then pushes the push plate 73 downwards to replenish the next detonator. A sensor may be installed on the side wall of the housing 71 to monitor the detonator level in real time, issuing an alarm signal when the level is insufficient.

[0041] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A borehole filling device for in-hole mixing reaction, characterized in that: It includes a traveling vehicle body (1), a multi-link structure (2), a borehole filling guide rail (4), an explosive filling structure (5), and a borehole mud sealing structure (6). The traveling vehicle body (1) is used for the overall movement of the device; There are multiple multi-link structures (2), and multiple multi-link structures (2) are installed at the front end of the traveling vehicle body (1) for adjusting the position and attitude of the end actuator. The end of the multi-link structure (2) is provided with a long strip-shaped rail seat (21). The borehole filling guide rail (4) is fixed parallel to the side of the rail base (21); The explosive filling structure (5) includes an emulsion explosive supply pump and an explosive filling pipe (51). The explosive filling pipe (51) is moved along the borehole filling guide rail (4) with the explosive filling structure (5). The emulsion explosive supply pump is connected to the explosive filling pipe (51). The blasting mud sealing structure (6) includes a raw material supply pipe (61), a raw material supply pump, and a borehole baffle (62). The borehole baffle (62) moves along the borehole filling guide rail (4) with the blasting mud sealing structure (6). The blasting mud sealing structure (6) is located at the moving front end of the explosive filling pipe (51). The borehole baffle (62) has a filling pipe perforation (621) and two raw material supply holes (622) facing the moving direction of the explosive filling pipe (51). The explosive filling pipe (51) slides through the filling pipe perforation (621). The two raw material supply holes (622) are respectively connected to one of the raw material supply pipes (61). The raw material supply pipe (61) is connected to the raw material supply pump.

2. The in-hole mixing reaction type borehole filling device according to claim 1, characterized in that: The explosive filling structure (5) further includes an explosive filling movable seat (52) and an explosive transfer seat (53). The explosive filling movable seat (52) is movably mounted on the borehole filling guide rail (4). The explosive transfer seat (53) is fixed on the explosive filling movable seat (52). The explosive filling tube (51) is connected to the front end of the explosive transfer seat (53). The emulsion explosive supply pump is connected to the explosive connecting seat. The explosive connecting seat is connected to the explosive filling tube (51).

3. The in-hole mixing reaction type borehole filling device according to claim 2, characterized in that: The blasting mud sealing structure (6) further includes a sealing movable seat (63) and a supply adapter seat (64). The sealing movable seat (63) is movably mounted on the blast hole filling guide rail (4). The supply adapter seat (64) is fixed on the sealing movable seat (63). The blast hole baffle (62) is fixed at the front end of the supply adapter seat (64). The explosive filling tube (51) slides through the supply adapter seat (64) and the blast hole baffle (62) in sequence. The raw material supply tube (61) passes through the supply adapter seat (64) in sequence and communicates with the raw material supply hole (622).

4. The in-hole mixing reaction type borehole filling device according to claim 3, characterized in that: The explosive filling structure (5) also includes a stirring blade (54), a stirring main gear (55), and a stirring secondary gear (56). The stirring blade (54) is a straight plate-shaped structure. Several stirring blades (54) are fixedly arranged around the front end of the raw material supply pipe (61). The axis of the raw material supply pipe (61) is parallel to the stirring blade (54). The raw material supply pipe (61) is rotatably connected to the explosive adapter (53). The stirring main gear (55) is coaxially fixed on the outside of the explosive filling pipe (51). The stirring secondary gear (56) is driven by a motor and rotated on the explosive filling moving seat (52). The stirring secondary gear (56) meshes with the stirring main gear (55).

5. The in-hole mixing reaction type borehole filling device according to claim 4, characterized in that: The filling tube perforation (621) includes a main hole (6211) that matches the outer diameter of the explosive filling tube (51) and a groove (6212) through which the stirring blade (54) passes.

6. The in-hole mixing reaction type borehole filling device according to claim 5, characterized in that: The blasting mud sealing structure (6) also includes a blocking insert plate (65). The side of the blasting hole baffle (62) is provided with a slot (623). The blocking insert plate (65) is driven by an electric cylinder to slide into the slot (623) and block the filling tube through hole (621).

7. The in-hole mixing reaction type borehole filling device according to claim 6, characterized in that: The explosive filling structure (5) further includes a pipe support (57) and an elastic ball pin (58). The pipe support (57) is fixedly mounted on the explosive filling moving seat (52). The explosive filling tube (51) is rotatably connected to the pipe support (57). A pin hole (511) is also opened on the overlapping surface of the explosive filling tube (51) and the pipe support (57). The elastic ball pin (58) is driven by an electric cylinder to move and is mounted in the pipe support and faces the pin hole (511). The elastic ball pin (58) is inserted into the pin hole (511). The moving path of the stirring blade (54) is aligned with the groove (6212).

8. The in-hole mixing reaction type borehole filling device according to claim 7, characterized in that: It also includes a detonator box (7), which has a detonator outlet (711) on its bottom side for the detonator to pass through. The detonator box (7) moves outside the borehole baffle (62) toward the explosive filling tube (51) and aligns the detonator outlet (711) with the opening of the retracted explosive filling tube (51).

9. The in-hole mixing reaction type borehole filling device according to claim 8, characterized in that: The blasting mud sealing structure (6) also includes a lifting plate (66), which is driven by an electric cylinder to move and is located outside the blasting hole baffle (62). The lifting plate (66) is fixedly connected to the blocking insert plate (65), and the detonator is fixedly connected to the lifting plate (66).

10. The in-hole mixing reaction type borehole filling device according to claim 9, characterized in that: The detonator box (7) includes a box body (71), a box cover (72), a push plate (73), a push spring (74), and a plug rod (75). The box body (71) has an inner cavity (712) that accommodates the arranged detonators from the top inward. The detonator outlet (711) is located on the bottom side of the box body (71). The box cover (72) closes the top opening of the box body (71). The push plate (73) is slidably disposed inside the box body (71). The push spring (74) abuts against the box cover (72) and the push plate (73). The plug rod (75) is driven by an electric cylinder and slidably disposed at the bottom of the box body (71). The plug rod (75) is used to push the detonator from the detonator outlet (711) into the explosive filling tube (51).

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