Mixed loading explosive truck for open blasting mine field

Abstract

The invention discloses a mixed explosive loading truck for an open blasting mine field, which belongs to the technical field of mine blasting machinery and comprises an adjusting and mixing device and an automatic explosive loading device. According to the adjusting and mixing device, a double-sealing partition plate fixed through a connecting rod is arranged in a horizontal tank body, an oil phase cavity, a water phase cavity and a middle mixing area are defined, and raw materials are pumped to the mixing area through an immersed pump and output through a discharging main pipe; the automatic explosive charging device achieves plane alignment of the flexible output hose through the hole site alignment mechanism, and the hose is driven by the moving assembly to vertically move. The technical problems that a traditional explosive truck is large in raw material real-time matching fluctuation, high in labor intensity of manual hole alignment explosive charging and low in positioning precision are solved, the explosive mixing uniformity and the automatic level of explosive charging operation are remarkably improved, and the safety and efficiency of mine blasting are guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of mining blasting machinery technology, specifically relating to a mixed explosives vehicle for open-pit blasting mines. Background Technology

[0002] In open-pit mining operations, blasting is a crucial process for ore stripping and crushing. Mixed explosives trucks, as mobile operating platforms integrating transportation, mixing, and loading, are widely used in open-pit blasting due to their ability to significantly reduce the safety risks of long-distance explosive transportation and improve operational efficiency. Traditional open-pit blasting mixed explosives trucks typically consist of a chassis, a raw material silo, and an end-of-line conveying and mixing device. In actual operations, the truck transports various non-explosive raw materials to the borehole opening, where they are mixed on-site to produce emulsion explosives or heavy ammonium phosphate explosives. These are then injected into pre-drilled blast holes via loading hoses. This "mix-and-load" model greatly enhances the mechanization level of mining operations.

[0003] Existing mixed explosives trucks still face significant technical bottlenecks in actual operation. Firstly, regarding material proportioning and mixing quality, the raw material bins of existing vehicles are mostly fixed in layout, with the supply and regulation of the oil and water phases relying primarily on flow valves. In the complex and bumpy environment of mines, the instantaneous proportions of raw materials are prone to fluctuation, and the long paths between the mixing area and storage chambers make it difficult to achieve optimal mixing uniformity. Secondly, in the loading operation, traditional explosives trucks have a low degree of automation. The alignment of the loading hose with the blast hole often requires manual traction or assisted positioning. This not only increases the labor intensity of operators but also, in the rugged working environment of open-pit mines, the accuracy of manual positioning is poor, easily leading to inconsistent loading depths or hose wear. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a mixed explosives vehicle for open-pit blasting mines, which solves the technical problems of large fluctuations in real-time mixing ratio, high labor intensity of manual hole loading, and low positioning accuracy in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention includes an adjustment and mixing device and an automatic loading device; the adjustment and mixing device includes a tank body, two sealing partitions, a submersible pump assembly, and a discharge assembly; the tank body extends horizontally in the longitudinal direction and has an internal cavity; the sealing partitions are transversely arranged in the cavity of the tank body, and the two sealing partitions are fixedly connected by a connecting rod, so that the two sealing partitions and the inner walls of the tank body on both sides respectively enclose an oil phase cavity, a water phase cavity, and an intermediate mixing area located between the two sealing partitions; the submersible pump is respectively arranged on the side of the two sealing partitions facing the oil phase cavity and the water phase cavity, and is used to extract and transport the raw material to the intermediate mixing area; the discharge assembly includes a discharge main pipe fixed to the tail end of the tank body, and the discharge main pipe communicates with the intermediate mixing area; The automatic loading device includes a hole alignment mechanism, a moving component, and a flexible output hose. The hole alignment mechanism is installed at the rear end of the frame of the mixed explosives vehicle. The flexible output hose is connected to the discharge main pipe. The hole alignment mechanism drives the upper end of the flexible output hose to move in a plane and align it with the blasting hole. The moving component drives the lower end of the flexible output hose to move vertically up and down.

[0006] Optionally, it also includes an adjustment mechanism connected to one of the sealing partitions, used to drive the two sealing partitions to slide synchronously left and right within the tank body to adjust the volume ratio of the oil phase chamber to the water phase chamber in real time; the adjustment mechanism includes an adjustment screw horizontally fixed in the middle of the sealing partition, and a threaded adjustment sleeve rotatably installed in the middle of the end of the tank body; the inner end of the threaded adjustment sleeve is threadedly connected to the adjustment screw, and its outer end extends out of the tank body and is connected to a worm gear transmission mechanism, which is driven by a proportional adjustment motor, and the rotation of the threaded adjustment sleeve drives the adjustment screw and the sealing partition to perform axial displacement.

[0007] Optionally, the cross-section of the tank body is a cuboid structure with rounded corners, and the width of the top bottom edge and the bottom bottom edge is greater than the length of the left and right sides; two feed ports are respectively opened at both ends of the top of the tank body, and each feed port is equipped with a sealing end cap; each sealing partition has a wide sealing strip on its circumferential edge, and the sealing strip slides and seals in contact with the inner wall surface of the tank body.

[0008] Optionally, the submersible pump assembly includes a submersible pump mounted on the sealing partition, the suction port of the submersible pump extending to the bottom of the tank body, and its output end passing through the sealing partition and pointing towards the intermediate mixing area; the electrical wiring of the submersible pump passes sequentially through the interior of the sealing partition, the connecting rod, and the hollow channel of the adjusting screw, and extends to the exterior of the tank body via the threaded adjusting sleeve; the discharge assembly includes a discharge main pipe fixed to the tail end of the tank body, and a guide suction pipe disposed inside the tank body and moving synchronously with the sealing partition; the discharge main pipe and the guide suction pipe are connected by a retractable corrugated pipe, and the bottom end of the guide suction pipe is provided with a suction port and contacts the bottom of the tank body.

[0009] Optionally, the intermediate mixing area is provided with two parallel stirring shafts of equal height, the two ends of which are respectively rotatably connected to two sealing partitions; the end of the stirring shaft passes through one of the sealing partitions and is fixedly connected to a long-shaft gear; the bottom of the tank body is provided with a power drive mechanism, which includes a drive spur gear located inside the tank body, the drive spur gear maintaining a meshing transmission relationship with the long-shaft gear, and the drive spur gear being able to slide relative to the long-shaft gear along its axial length; the power drive mechanism also includes a stirring drive motor fixed to the outside of the bottom end of the tank body, the output shaft of the stirring drive motor being sealed and inserted into the inside of the tank body and connected to a bevel gear set; the bevel gear set is connected to the drive spur gear through a power shaft, for transmitting the power of the stirring drive motor to the stirring shaft.

[0010] Optionally, a hollow base beam is also included. The hole alignment mechanism includes a support back plate, a transverse guide beam, and a transverse guide block. The transverse guide beam is movable on the support back plate along the extension direction of the vehicle frame, and the transverse guide block is transversely moved on the transverse guide beam. The hollow base beam is located on the upper side of the vehicle frame. Inside the hollow base beam is a moving component that moves horizontally along the axial direction of the hollow base beam. A guide roller is rotatably connected to the moving component. The input end of the flexible output hose is connected to the explosive production source. The flexible output hose passes through the transverse guide block and enters the interior of the hollow base beam, and bypasses the guide roller to form a variable-length U-shaped loop. Finally, it extends vertically from the output position below the transverse guide block. The external overhang length of the flexible output hose is adjusted by the axial displacement of the moving component within the hollow base beam.

[0011] Optionally, a telescopic drive cylinder is fixed to the rear end of the support back plate. The piston end of the telescopic drive cylinder passes horizontally through the support back plate and is fixedly connected to the middle of the transverse guide beam. Two horizontal sliding rods are symmetrically fixed at both ends of the transverse guide beam, and the two horizontal sliding rods slide horizontally through both ends of the support back plate. A strip-shaped through-slot extending along the length of the transverse guide beam is opened through the transverse guide beam. A transmission screw driven by a motor is rotatably installed in the strip-shaped through-slot. The transmission screw is arranged parallel to the extension direction of the transverse guide beam and passes through the transverse guide block, and is used to drive the transverse guide block to perform left and right transverse displacement adjustment on the transverse guide beam. Limiting sliding grooves extending laterally are opened on the inner walls of both sides of the strip-shaped through-slot. Sliding flanges are provided at both ends of the side walls of the transverse guide block, and the sliding flanges are embedded in the limiting sliding grooves.

[0012] Optionally, the hollow base beam has two parallel guide rails extending along the direction of the hollow base beam at the center of its inner bottom surface. The moving component includes two traveling supports, which are respectively moved by the two guide rails. A fixed shaft connects the two traveling supports. The guide roller is coaxially rotatably sleeved on the fixed shaft. A drive shaft is also rotatably connected between the two traveling supports. The outer end of the drive shaft is provided with a worm gear reduction mechanism driven by a motor. Two drive gears are provided on the drive shaft. The top side of the guide rail has a rack structure. The two drive gears mesh with the rack structures on the top side of the two guide rails respectively.

[0013] Optionally, the system also includes a tank body mounted on a chassis and a sensitizer storage tank mounted at the rear end of the tank body. The rear end of the tank body is provided with a main discharge pipe for discharging the base material, and the lower end of the sensitizer storage tank is provided with a sensitizer output branch pipe. Both the main discharge pipe and the sensitizer output branch pipe are connected to the flexible output hose. The system also includes a mixing cylinder, which is located above the rear end of the hollow base beam. The mixing cylinder has a horizontal cylindrical structure. Both the main discharge pipe and the sensitizer output branch pipe are connected to the front end of the mixing cylinder. A stirring main shaft is transversely inserted inside the mixing cylinder. A spiral blade is fixedly installed on the stirring main shaft. The spiral blade is spirally wound around the surface of the stirring main shaft. The rear end of the mixing cylinder is provided with an explosive discharge port connected to the flexible output hose.

[0014] Optionally, an upper vertical through hole is provided through the transverse guide block, and a base module is connected to the lower part of the transverse guide block via a connecting frame. A lower vertical through hole is provided on the base module, which is coaxially arranged with the upper vertical through hole. A hole block is fixedly provided at the middle of the front end of the hollow base beam. Two guide holes are provided above and below the hole block for the flexible output hose to pass through. Two friction drive shafts meshing with gear pairs are rotatably provided inside the base module. Flexible clamping wheels are coaxially provided on the friction drive shafts. The two flexible clamping wheels protrude from the lower vertical through hole and press against the walls of both sides of the flexible output hose. A terminal counterweight is provided at the end of the flexible output hose for guiding its lowering.

[0015] The beneficial effects of this invention are as follows: By setting two sealed partitions fixedly connected by connecting rods within the laterally extending tank, the internal space is scientifically divided into an oil phase chamber, a water phase chamber, and an intermediate mixing area. This three-section layout, combined with a submersible pump integrated into the partitions, shortens the material conveying path. Because the submersible pump directly extracts and delivers the material to the intermediate area, the real-time inflow of both oil and water phases can be more precisely controlled, ensuring the stability of the explosive base material's proportions in the initial mixing stage. The automatic charging device, through the collaboration of the orifice alignment mechanism and the moving component, enhances the end positioning capability of the flexible output hose from the traditional single dimension to multiple spatial dimensions. The orifice alignment mechanism is responsible for precise planar positioning, while the moving component is responsible for vertical depth adjustment. This design completely changes the original manual orifice alignment and hose placement mode, significantly reducing the labor intensity of operators and greatly improving the alignment accuracy of the hose and blasting hole, ensuring the continuity of charging operations. The entire machine integrates the two core functions of regulating mixing and automatic charging onto the same frame. The direct connection between the discharge main pipe and the flexible hose reduces the risk of material exposure to the external environment. This highly integrated mechanical structure enhances the mobility and on-site adaptability of the mixed explosives truck, effectively reducing potential safety hazards caused by improper manual operation in open-pit blasting environments, and achieving a balance between safe production and efficient operation.

[0016] 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

[0017] 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 first integral structure of the mixed explosives vehicle according to an embodiment of the invention; Figure 2A schematic diagram of the internal structure of the tank body according to an embodiment of the invention; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 for Figure 2 Enlarged view of point B; Figure 5 A schematic diagram of the threaded adjusting sleeve drive structure of this invention embodiment; Figure 6 A schematic diagram of the second integral structure of the mixed explosives vehicle according to an embodiment of the invention; Figure 7 A schematic diagram of the hole alignment mechanism of this invention is provided. Figure 8 Detailed internal view of the empty frame in this embodiment of the invention; Figure 9 A schematic diagram of the internal structure of the mobile component according to an embodiment of the invention; Figure 10 A schematic diagram of the mixing cylinder and transverse guide block structure of this invention embodiment; Figure 11 for Figure 10 Sectional view at point AA; The following are labeled in the attached diagram: 1. Tank body; 11. Inlet; 12. Sealed end cap; 13. Oil phase chamber; 14. Water phase chamber; 2. Sealing partition; 21. Sealing strip; 22. Connecting rod; 23. Submersible pump; 3. Adjusting screw; 31. Threaded adjusting sleeve; 32. Proportional adjustment motor; 33. Worm gear transmission mechanism; 4. Main discharge pipe; 41. Telescopic corrugated pipe; 42. Guide suction pipe; 43. Flexible output hose; 431. Terminal counterweight; 51. Stirring shaft; 52. Long shaft gear; 53. Stirring drive motor; 54. Bevel gear; 55. Power shaft; 56. Drive spur gear; 6. Sensitizer storage tank; 61. Sensitizer output branch pipe; 7. Mixing cylinder; 71. Stirring main shaft; 72. Spiral blade; 73. Explosive discharge port; 81. Support back plate; 82. Horizontal guide beam; 821. Strip groove; 822. Limiting slide groove; 83. Telescopic drive cylinder; 84. Horizontal slide bar; 85. Lateral guide block; 851. Sliding flange; 852. Upper vertical through hole; 86. Transmission screw; 87. Base module; 871. Lower vertical through hole; 872. Friction drive shaft; 873. Gear transmission pair; 874. Flexible clamping wheel; 88. Connecting frame; 9. Hollow base beam; 91. Guide rail; 921. Traveling support; 922. Fixed coupling shaft; 923. Guide roller; 924. Drive shaft; 925. Drive gear; 926. Worm gear reduction mechanism; 93. Hole block. Detailed Implementation

[0018] 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.

[0019] Please refer to the figures. 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, the 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.

[0020] 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.

[0021] This invention provides a mixed explosives loading vehicle for open-pit blasting mines, including an adjustment and mixing device and an automatic loading device. The adjustment and mixing device is based on an integral tank body 1 as a basic support component. The tank body 1 extends horizontally longitudinally in space, and its cross-section exhibits a special geometric shape, specifically a rounded rectangular structure with rounded corners at all four corners. In the cross-sectional proportions of the tank body 1, the horizontal width of its upper top wall and lower bottom wall is greater than the vertical height of its left and right side walls, forming a flat receiving cavity. On the top horizontal surface of the tank body 1, near its longitudinal ends, two feed ports 11 are respectively opened. These two feed ports 11 serve as channels for conveying materials into the tank. To ensure the sealing of the tank interior, a sealing end cap 12 is provided above each feed port 11, which is tightly fitted to the edge of the feed port 11 by fastening or mechanical locking.

[0022] refer to Figure 2Within the internal cavity of the tank body 1, two transversely arranged sealing baffles 2 are formed. Each of the outer circumferential edges of these two sealing baffles 2 is wrapped with a sealing strip 21. This sealing strip 21 has a certain width and is made of elastic material, enabling it to form a dynamic sliding seal with the inner wall of the tank body 1. Due to the presence of these two sealing baffles 2, the internal space of the tank body 1 is divided into three relatively independent parts. The spaces located on the opposite sides of the two sealing baffles 2 respectively constitute two cavities for holding raw materials: an oil phase cavity 13 and a water phase cavity 14. These two sealing baffles 2 do not move independently but are rigidly connected by connecting rods 22. These connecting rods 22 are parallel to each other between the two sealing baffles 2, with their ends fixed to the inner wall of each sealing baffle 2, thus maintaining a constant axial distance between the two sealing baffles 2 and forming an integral sliding internal frame structure.

[0023] refer to Figure 2 and Figure 5 An adjusting screw 3 extends horizontally outward from the middle of one of the sealing partitions 2 facing one end of the tank body. One end of the adjusting screw 3 is fixed to the sealing partition 2, and the other end points towards the end wall of the tank body 1. At the center of the end of the tank body 1, there is a through-wall mounting hole, through which a threaded adjusting sleeve 31 is rotatably connected via a bearing seal. The threaded adjusting sleeve 31 has internal threads and is a sleeve-shaped structure with an open inner end and a closed outer end. The inner end of the threaded adjusting sleeve 31 extends into the tank body 1 and is threadedly connected to the adjusting screw 3, while its outer end extends out of the tank body 1. At the end of the threaded adjusting sleeve 31 extending out of the tank body 1, a worm gear transmission mechanism 33 is installed. This mechanism includes a worm gear sleeved on the threaded adjusting sleeve 31 and a worm gear meshing with the worm gear. A proportional adjusting motor 32 is connected to one end of the worm gear and is fixed to an external bracket at the end of the tank body 1. When the proportional adjustment motor 32 operates and drives the worm gear transmission mechanism 33 to move, the threaded adjustment sleeve 31 rotates accordingly. The driving force of the threaded pair acts on the adjustment screw 3, thereby pushing the entire inner frame, which consists of two sealing partitions 2 and connecting rods 22, to slide left and right along the axial direction within the tank body 1.

[0024] refer to Figure 2 and Figure 4A submersible pump 23 is installed on the side of each sealed partition 2 facing its respective cavity. This submersible pump 23 serves as a power suction component, its pump body fixed to the wall of the sealed partition 2 by a bracket. The bottom of the submersible pump 23 has a suction port that extends downwards and is as close as possible to the bottom inner wall of the tank body 1 to ensure the extraction of material from the bottom of the cavity. The output end of the submersible pump 23 passes through the corresponding sealed partition 2, pointing towards the middle area between the two sealed partitions 2. To power the submersible pump 23, an electrical circuit extends from an external power source. The circuit path is designed as follows: it passes from the outside of the tank through the center of the closed threaded adjusting sleeve 31, enters the internal hollow channel of the adjusting screw 3, then runs along the surface or interior of the connecting rod 22, and the internal interlayer of the sealed partition 2, finally connecting to the terminals of each submersible pump 23.

[0025] refer to Figure 2 A fixed discharge main pipe 4 is connected through the rear wall of the tank body 1. Inside the tank body 1, the inner end of the discharge main pipe 4 is connected to a section of retractable bellows 41, which has good flexibility and axial expansion and contraction displacement compensation capability. At the other end of the retractable bellows 41, a guide suction pipe 42 is connected. The guide suction pipe 42 is entirely set in the mixing area enclosed between the two sealing partitions 2 and moves synchronously with the sealing partitions 2. The bottom end of the guide suction pipe 42 has a suction port, which extends downward and contacts the bottom inner wall of the tank body 1, so that the oil-water mixture after mixing between the two sealing partitions 2 can enter the guide suction pipe 42 and be output outward from the discharge main pipe 4 through the retractable bellows 41.

[0026] refer to Figure 2 and Figure 3Two stirring shafts 51 are arranged in parallel within the intermediate region between the two sealing partitions 2. These two stirring shafts 51 are at the same horizontal level and arranged side-by-side, with their axes parallel to the longitudinal axis of the tank body 1. Both ends of each stirring shaft 51 pass through the two sealing partitions 2 and are connected to rotating seals on the sealing partitions 2. This allows the stirring shafts 51 to rotate freely on the sealing partitions 2 while ensuring that the material in the cavity does not leak into the intermediate region. On the outer side of the sealing partition 2 away from the adjusting screw 3, the ends of both stirring shafts 51 extend a certain distance, and a long-shaft gear 52 is connected to their extended shaft sections. This long-shaft gear 52 is a spur gear structure with a relatively long axial dimension. A stirring drive motor 53 is installed on the outside of the bottom end of the tank body 1. The output shaft of the stirring drive motor 53 passes upward through the bottom wall of the tank body 1 via a sealed bearing assembly and enters the tank interior. A bevel gear 54 is installed at the top of the stirring drive motor 53, located inside the tank interior. The bevel gear 54 meshes with another vertically arranged bevel gear 54, thereby redirecting the vertical rotational power to a horizontal direction. Connected to this redirected bevel gear 54 is a horizontally arranged power shaft 55, on which a drive spur gear 56 is fixedly fitted. The tooth profile of the drive spur gear 56 matches and remains engaged with the long-shaft gear 52. When the stirring drive motor 53 drives the power shaft 55 to rotate, the drive spur gear 56 rotates accordingly, driving the long-shaft gear 52 to rotate. Because the long-shaft gear 52 has sufficient length, when the two sealing partitions 2 are displaced under the drive of the adjusting screw 3, the drive spur gear 56 can slide relative to the long-shaft gear 52 along its axial direction, always maintaining a meshing transmission relationship.

[0027] The analysis of the operation of the device itself mainly focuses on four core mechanical linkage processes: spatial volume adjustment, material conveying, dynamic mixing, and output of mixed finished products.

[0028] In the initial preparation stage, raw materials are injected into the tank body 1 through the feed inlet 11 at the top. The sealing end cap 12 is closed by threads or a locking mechanism to ensure a relatively controlled pressure environment inside the tank body 1. At this time, the two sealing baffles 2 are tightly fitted to the inner wall of the tank body 1 by the sealing strips 21 on their edges, dividing the interior of the tank body 1 into an aqueous phase chamber 14 on the left, an oil phase chamber 13 on the right, and an intermediate mixing area supported by the connecting rod 22 between the two sealing baffles 2. Since the length of the connecting rod 22 is fixed, the volume of the intermediate mixing area remains constant when the two sealing baffles 2 move at any position, while the volumes of the aqueous phase chamber 14 and the oil phase chamber 13 at both ends exhibit a complementary growth-reduction relationship.

[0029] The specific proportioning adjustment process is initiated by a proportional regulating motor 32 as the power source. The proportional regulating motor 32 outputs torque to the worm gear transmission mechanism 33, which, utilizing the self-locking property and high reduction ratio of the worm gear, drives the threaded adjusting sleeve 31 to rotate in situ within the mounting hole at the end of the tank body 1. Due to the precise threaded fit between the threaded adjusting sleeve 31 and the adjusting screw 3, the rotational motion of the threaded adjusting sleeve 31 is converted into the axial linear motion of the adjusting screw 3. The adjusting screw 3 directly pushes the sealing partition 2 connected to it, and drives another sealing partition 2 to move synchronously through the connecting rod 22. In this process, if the sealing partition 2 moves towards the water phase cavity 14, the volume of the water phase cavity 14 decreases while the volume of the oil phase cavity 13 increases accordingly; and vice versa. This mechanical adjustment method achieves real-time and precise physical distribution of the loading ratio of the two raw materials, thereby ensuring the maximum utilization rate of transported materials under different blasting requirements.

[0030] During the material conveying and initial mixing phase, the submersible pump 23, mounted on the sealing partition 2, plays a crucial role. The submersible pump 23 is powered by electrical wiring: the cable enters from the outside into the threaded adjusting sleeve 31, passes through the hollow adjusting screw 3, and extends along the inside of the sealing partition 2 and the connecting rod 22, ensuring that the electrical wiring is not corroded by the material or mechanically entangled during frequent movement of the sealing partition 2. When the submersible pump 23 starts, the suction inlet draws oil or water phase raw materials from the bottom of the tank body 1. After being pressurized by the pump, the material passes through the sealing partition 2 and is metered and sprayed into the mixing area between the two sealing partitions 2.

[0031] Next, the dynamic mixing stage begins. The mixing drive motor 53, located outside the bottom of the tank body 1, starts, transmitting power through its output shaft to the bevel gear set 54 inside the tank body 1. The bevel gear set 54 converts vertical rotation into horizontal rotation, driving the power shaft 55 and its drive spur gear 56 to rotate. The drive spur gear 56 maintains meshing with the long-axis gear 52 fixed to the end of the mixing shaft 51. During this process: because the long-axis gear 52 has a long axial tooth surface, when the sealing baffle 2 slides left and right with the mixing shaft 51 to adjust the mixing ratio, the drive spur gear 56 can smoothly slide relative to the long-axis gear 52 along its axial direction without disengaging. This ensures stable transmission of mixing power at any mixing ratio position. The two parallel mixing shafts 51 at the same height rotate at high speed in the mixing area, forcibly mechanically shearing and mixing the oil and water phase raw materials delivered by the submersible pump 23.

[0032] Finally, the final stage is the output of the mixed product. Under the efficient action of the stirring shaft 51, the oil and water phases rapidly form a uniform emulsion explosive mixture between the two sealing baffles 2. At this time, the feed pipe 42 located in the mixing area collects the mixed product through the suction port at its bottom. Since the feed pipe 42 moves synchronously with the sealing baffles 2, it must be connected to the discharge main pipe 4 fixed at the tail end of the tank body 1 through a telescopic bellows 41. When the sealing baffle 2 assembly is adjusting the ratio, the telescopic bellows 41 stretches or compresses through its own pleated structure to compensate for the displacement difference between the feed pipe 42 and the discharge main pipe 4. The mixture finally passes through the feed pipe 42 and the telescopic bellows 41 in sequence under the action of pressure difference or subsequent pumping force, and is finally stably output to the external injection system by the discharge main pipe 4. The entire operation process realizes fully automated mechanical collaboration from ratio adjustment, raw material extraction, online stirring to finished product output.

[0033] This device, through the cooperation of a proportional adjustment motor 32, a worm gear transmission mechanism 33, and a threaded adjustment sleeve 31, drives the adjusting screw 3 in real time, causing the entire inner frame to move within the tank body 1. This design overcomes the drawbacks of traditional oil tanks with fixed volumes, allowing the volume ratio of the oil phase chamber 13 to the water phase chamber 14 to be steplessly adjusted according to the explosive formulation requirements. This "real-time dynamic proportioning" capability not only ensures the maximum utilization rate of transported materials but also significantly improves the adaptability of the explosive vehicle to different operating environments. By integrating a stirring shaft 51, a submersible pump 23, and a material guide pipe 42 between two sealed partitions 2, this device highly integrates raw material storage, precise proportioning, online mixing, and finished product output within a single internal space of the tank body 1. This integrated mechanical layout not only significantly reduces the space occupied by external auxiliary equipment on the explosive vehicle but also reduces material loss during external pipeline transportation, greatly improving the overall efficiency of on-site operations.

[0034] The device employs a meshing structure of a long-shaft gear 52 and a drive spur gear 56. Due to the large axial length of the long-shaft gear 52, the drive spur gear 56 remains engaged throughout the displacement of the sealing partition 2, ensuring a continuous power supply to the stirring shaft 51. This design solves the problem of power transmission interruption during dynamic volume adjustment, achieving a highly efficient operating mode of "adjusting, stirring, and outputting simultaneously."

[0035] This device is designed with engineering practicality in mind: Piping compensation mechanism: A retractable corrugated pipe 41 connects the feed suction pipe 42 to the discharge main pipe 4 fixed at the tail end, effectively compensating for displacement differences caused by the movement of the sealing partition 2, ensuring the sealing and reliability of the output system; Circuit protection design: Electrical wiring is cleverly arranged inside the threaded adjusting sleeve 31, adjusting screw 3, and connecting rod 22. This enclosed wiring method greatly reduces the risk of cable damage due to mechanical friction or chemical corrosion, improving the overall lifespan and safety of the system.

[0036] like Figure 6 , Figure 7 , Figure 8 As shown, the automatic loading device is mainly built on a mixed explosives vehicle, which has a frame connected to its rear end. On the frame, a tank body 1 is arranged along the length of the frame. The tank body 1 has a longitudinally extending tank structure, and its internal space is used to store the oil-based and water-based mixture of emulsion explosives. At the rear end of the tank body 1, a discharge pipe 4 is connected, which communicates with the interior of the tank body 1 to discharge the mixture to the rear. At the rear end of the tank body 1, a sensitizer storage tank 6 is also provided. Since the required amount of sensitizer is smaller than that of the mixture, the sensitizer storage tank 6 is specifically designed as an auxiliary tank installed at the rear end of the tank body 1. At the lower end of the sensitizer storage tank 6, a sensitizer output branch pipe 61 is connected, which has a downwardly extending tubular structure.

[0037] like Figure 8 and Figure 10 As shown, this device has a mixing cylinder 7 located at the rear end of the main tank 1 and directly below the auxiliary tank. The mixing cylinder 7 has a horizontal cylindrical geometry. Two independent interfaces are provided on the front side of the mixing cylinder 7. One end of the main discharge pipe 4 is connected to one of these independent interfaces, and one end of the sensitizer output branch pipe 61 is connected to the other independent interface, allowing the mixed base material and sensitizer to enter the front of the mixing cylinder 7 through these two independent paths. Inside the mixing cylinder 7, a stirring shaft 71 is horizontally inserted, with its axis coinciding with the central axis of the mixing cylinder 7. Helical blades 72 are fixedly mounted on the stirring shaft 71, spirally wound around its surface. A motor is connected to one end of the stirring shaft 71, driving the stirring shaft 71 and the helical stirring mechanism to rotate, thereby achieving the propulsion, forced shearing, and mixing of the material inside the cylinder. At the rear end of the mixing cylinder 7, there is an explosive discharge port 73, which is connected to the flexible output hose 43.

[0038] like Figure 6 and Figure 7 As shown, a hole alignment mechanism is installed at the rear end of the vehicle frame. The hole alignment mechanism includes a support back plate 81 fixed to the rear end face of the vehicle frame. The support back plate 81 is a vertically arranged plate-like structure. At the rear end of the support back plate 81, a transverse guide beam 82 is arranged parallel to the support back plate 81. The transverse guide beam 82 is a long strip-like structure extending horizontally. A telescopic drive cylinder 83 is fixedly installed on the rear end face of the support back plate 81, above the vehicle frame. The piston end of the telescopic drive cylinder 83 extends horizontally rearward and passes through the support back plate 81. The end of the piston end is fixedly connected to the middle of the transverse guide beam 82, driving the transverse guide beam 82 to move back and forth along the vehicle axis. At each of the left and right ends of the transverse guide beam 82, a horizontal sliding rod 84 is fixedly connected. Both horizontal sliding rods 84 extend horizontally forward and slide horizontally through guide holes opened at both ends of the support back plate 81, thereby providing stable support and guidance for the movement of the transverse guide beam 82. A strip-shaped through groove 821 is opened along the length of the transverse guide beam 82, and the strip-shaped through groove 821 has a certain extension length in the horizontal direction. A transverse guide block 85 is slidably arranged in the strip-shaped through groove 821. The transverse guide block 85 has a vertically extending columnar structure. At both ends of the side wall of the transverse guide block 85, sliding flanges 851 are symmetrically arranged. On the inner side wall of the strip-shaped through groove 821, corresponding limiting grooves 822 are opened for the sliding flanges 851 to be inserted and slide. Through the cooperation of the flanges and the grooves, the transverse guide block 85 is constrained within the transverse guide beam 82 for lateral displacement. A transmission screw 86 is rotatably mounted within the strip groove 821 of the transverse guide beam 82. The transmission screw 86 is arranged parallel to the extension direction of the transverse guide beam 82. The transmission screw 86 passes through the screw nut structure inside the transverse guide block 85 and is connected to a drive motor at one end of the transverse guide beam 82. The drive motor drives the transmission screw 86 to rotate, thereby driving the transverse guide block 85 to move laterally left and right on the transverse guide beam 82.

[0039] like Figure 8 and Figure 10As shown, a vertical through-hole 852 is provided on the transverse guide block 85, extending from its top to its bottom surface. The edge of the vertical through-hole 852 is rounded. A base module 87 is located directly below the transverse guide block 85. The base module 87 is fixedly connected to the transverse guide block 85 via a connecting bracket 88, allowing the base module 87 to move synchronously with the transverse guide block 85. A lower vertical through-hole 871 is also provided on the base module 87, and this lower vertical through-hole 871 is coaxially aligned with the upper vertical through-hole 852 on the transverse guide block 85. A hole block 93 is fixedly provided at the center of the front end of the hollow base beam 9. The hole block 93 has two guide holes at the top and bottom for the flexible output hose 43 to enter and exit.

[0040] like Figure 8 , Figure 9 As shown, a hollow base beam 9 is fixedly installed on the frame along its central axis. The hollow base beam 9 has a longitudinally extending receiving cavity inside. On the bottom surface inside the hollow base beam 9, two guide rails 91 extending parallel to the length of the hollow base beam 9 are arranged at their central positions. The top sides of these two guide rails 91 are both machined into rack structures. Inside the hollow base beam 9, a movable assembly that can move along the rails is also provided. The movable assembly includes two traveling supports 921, and a fixed coupling shaft 922 is laterally connected between the two traveling supports 921. A guide roller 923 is coaxially rotatably sleeved on the fixed coupling shaft 922, and the guide roller 923 can rotate freely on the fixed coupling shaft 922. A drive shaft 924 is rotatably connected between the two traveling supports 921. Two drive gears 925 are mounted on the drive shaft 924, and these two drive gears 925 mesh with rack structures on the top sides of the two guide rails 91, respectively. At one end of the drive shaft 924, a worm gear reduction mechanism 926 driven by a motor is connected. This mechanism outputs torque to drive the drive gears 925 to rotate, thereby causing the entire moving assembly to move back and forth along the track within the hollow base beam 9.

[0041] like Figure 8 and Figure 10As shown, this device also includes a flexible output hose 43, one end of which is tightly connected to the explosive discharge port 73 at the rear end of the mixing cylinder 7. After the flexible output hose 43 is led out from the discharge port, its body passes through the upper vertical through hole 852 at the top of the transverse guide block 85 from top to bottom, extends out from the bottom of the transverse guide block 85, enters the internal space of the hollow base beam 9 through the guide through hole at the upper position 93, then goes around the circumference of the guide roller 923 on the moving component, changes direction, and then goes back to the hole 93, and exits through the lower guide through hole to the lower vertical through hole 871 of the base module 87 at the lower end of the transverse guide block 85. At the end of the flexible output hose 43, a terminal counterweight 431 is fixedly connected to guide the hose downward by gravity.

[0042] like Figure 10 and Figure 11 As shown, two friction drive shafts 872 are rotatably mounted inside the base module 87, and these two friction drive shafts 872 are arranged parallel to each other. The two friction drive shafts 872 are connected to each other by a set of gear transmission pairs 873, and one of the friction drive shafts 872 is connected to the output end of an external drive motor. A flexible clamping wheel 874 is coaxially fixed on each of the two friction drive shafts 872. A portion of the rim of these two flexible clamping wheels 874 protrudes from the side wall of the lower vertical through hole 871 of the base module 87 and is tightly pressed against the outer wall of the flexible output hose 43 from both sides.

[0043] During the initial operation phase, the mixed explosives truck arrives at the designated blasting site. The emulsion explosive oil-based and water-based mixture stored in the main tank 1 is pumped downstream through the discharge main pipe 4 at the rear of the main tank 1 under external pump pressure. Simultaneously, the sensitizer storage tank 6, located at the rear of the main tank 1, begins synchronous operation, with the sensitizer flowing downwards through the sensitizer output branch pipe 61 at the lower end of the auxiliary tank. The two materials converge at the front end of the mixing drum 7, where a motor drives the stirring shaft 71 to rotate at high speed, causing the spiral stirring mechanism fixed to the shaft to rotate accordingly. The axially distributed spiral blades 72 forcefully shear and continuously stir the flowing materials, ensuring the sensitizer is evenly distributed in the mixture, forming an emulsion explosive. Under propulsion pressure, the mixed explosive is discharged through the explosive discharge port 73 at the rear of the mixing drum 7, entering the subsequent conveying stage.

[0044] To ensure the flexible output hose 43 accurately enters the rupture hole, the device performs multi-dimensional position adjustment through a hole alignment mechanism. The support back plate 81, fixed to the rear end of the frame, serves as a reference support. After receiving a control command, the piston end of the telescopic drive cylinder 83 extends and retracts. Since the piston end passes through the support back plate 81 and is fixed to the middle of the transverse guide beam 82, this action directly drives the transverse guide beam 82 to move axially along the vehicle body. During this process, the two horizontal sliding rods 84 at both ends of the transverse guide beam 82 slide smoothly within the guide holes of the support back plate 81, ensuring the horizontality and stability of the transverse guide beam 82 during forward and backward movement. The motor installed inside the transverse guide beam 82 drives the transmission screw 86 to rotate. Since the transmission screw 86 passes through the transverse guide block 85, the rotation of the screw is converted into transverse linear motion of the transverse guide block 85 within the strip groove 821. The sliding flanges 851 on both sides of the transverse guide block 85 slide within the limiting groove 822, strictly limiting its movement trajectory and preventing deflection during movement. By adjusting the telescopic drive cylinder 83 forward and backward and the transmission screw 86 left and right, the upper vertical through hole 852 on the transverse guide block 85 and the lower vertical through hole 871 on the base module 87 can be precisely suspended directly above the blast hole.

[0045] After the flexible output hose 43 exits from the explosive discharge port 73 of the mixing cylinder 7, it first passes through the upper vertical through-hole 852 of the transverse guide block 85 into the hollow base beam 9, then around the guide roller 923 on the moving assembly, and finally returns to the lower vertical through-hole 871 of the base module 87. This design forms a variable-length "U-shaped" loop. When it is necessary to lower the hose into the blast hole, the motor in the hollow base beam 9 drives the drive shaft 924 to rotate through the worm gear reduction mechanism 926, causing the drive gear 925 on the drive shaft 924 to travel on the rack structure of the guide rail 91. When the moving assembly moves closer to the mixing cylinder 7, the guide roller 923 moves accordingly, shortening the loop length of the hose inside the hollow base beam 9, thereby releasing more hose to extend below the base module 87. Conversely, when the moving component moves backward, the guide roller 923 pulls the hose backward, retrieving it. At the very end of the hose output, the mechanism within the base module 87 provides final auxiliary power and stabilization. A motor drives two friction drive shafts 872 to rotate, with a gear transmission pair 873 ensuring synchronous and counter-rotating rotation. Two flexible clamping rollers 874 mounted on the shafts press against the walls of the flexible output hose 43 from both sides of the lower vertical through-hole 871, using friction to forcefully push the hose downward or pull it upward. The terminal counterweight 431, relying on its own weight, ensures the hose remains vertical during descent, smoothly entering the depths of the blast hole.

[0046] This device achieves continuous mixing of the emulsion explosive mixture base material and sensitizer by incorporating a spiral stirring mechanism with spiral blades 72 within the mixing cylinder 7, ensuring the stability of the physical properties of the finished explosive and the uniformity of the charge quality. The integrated hole alignment mechanism uses a telescopic drive cylinder 83 to drive the transverse guide beam 82 for forward and backward axial adjustment, and a transmission screw 86 to drive the transverse guide block 85 for left and right lateral adjustment, assisting in the rapid alignment and fixed guidance of the explosive holes, effectively solving the problems of low efficiency and inaccurate positioning in traditional manual operation. The flexible output hose 43 forms a variable-length "U-shaped" loop inside the hollow base beam 9, bypassing the guide roller 923. The extension and retraction length of the hose is precisely controlled by the displacement of the moving component on the rack structure of the guide rail 91. This built-in hose management method not only effectively utilizes the internal space of the chassis but also avoids long-distance hoses being exposed, tangled, or damaged outside the vehicle body, greatly improving the operational stability of the equipment in complex mining environments. In addition, the friction drive shaft 872 and flexible clamping wheel 874 installed inside the base module 87, together with the terminal counterweight 431 at the end of the hose, can provide reliable power for the hose to be lowered and lifted, ensuring that the hose always remains vertical and taut during deep hole charging operations. This achieves precise control of the charging depth and a high degree of automation in the operation process, significantly reducing the labor intensity of operators and improving the safety and overall production efficiency of open-pit blasting operations.

[0047] 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 mixed explosives vehicle for open-pit blasting mines, characterized in that: Includes regulating and mixing devices as well as automatic loading devices; The regulating and mixing device includes a tank body (1), two sealing partitions (2), a submersible pump (23) assembly, and a discharge assembly; the tank body (1) extends horizontally in the longitudinal direction and has a cavity inside; the sealing partitions (2) are arranged laterally in the cavity of the tank body (1), and the two sealing partitions (2) are fixedly connected by a connecting rod (22), so that the two sealing partitions (2) and the inner walls of the tank body (1) on both sides respectively form an oil phase cavity (13), a water phase cavity (14), and an intermediate mixing area located between the two sealing partitions (2); the submersible pump (23) is respectively arranged on the side of the two sealing partitions (2) facing the oil phase cavity (13) and the water phase cavity (14), and is used to extract and transport the raw materials to the intermediate mixing area; the discharge assembly includes a discharge main pipe (4) fixed at the tail end of the tank body (1), and the discharge main pipe is connected to the intermediate mixing area; The automatic loading device includes a hole alignment mechanism, a moving component, and a flexible output hose (43); the hole alignment mechanism is installed at the rear end of the frame of the mixed explosives vehicle, the flexible output hose (43) is connected to the discharge main pipe (4), the hole alignment mechanism drives the upper end of the flexible output hose (43) to move in a plane and align with the blasting hole, and the moving component drives the lower end of the flexible output hose (43) to move vertically up and down.

2. The mixed explosives truck for open-pit blasting mines according to claim 1, characterized in that: It also includes an adjustment mechanism connected to one of the sealing partitions (2), which drives the two sealing partitions (2) to slide synchronously left and right within the tank body (1) to adjust the volume ratio of the oil phase chamber (13) and the water phase chamber (14) in real time. The adjustment mechanism includes an adjustment screw (3) horizontally fixed in the middle of the sealing partition (2) and a threaded adjustment sleeve (31) rotatably installed in the middle of the end of the tank body (1). The inner end of the threaded adjustment sleeve (31) is threadedly connected to the adjustment screw (3), and its outer end extends out of the tank body (1) and is connected to a worm gear transmission mechanism (33). The worm gear transmission mechanism (33) is driven by a proportional adjustment motor (32), and the rotation of the threaded adjustment sleeve (31) drives the adjustment screw (3) and the sealing partition (2) to make axial displacement.

3. The mixed explosives truck for open-pit blasting mines according to claim 2, characterized in that: The cross-section of the tank body (1) is a cuboid structure with rounded corners, and the width of the top bottom edge and the bottom bottom edge is greater than the length of the left and right sides. The top two ends of the tank body (1) are respectively provided with two feed ports (11), and each feed port (11) is equipped with a sealing end cap (12). Each sealing partition (2) has a wide sealing strip (21) on its circumferential edge, and the sealing strip (21) slides and seals against the inner wall surface of the tank body (1).

4. The mixed explosives truck for open-pit blasting mines according to claim 3, characterized in that: The submersible pump (23) assembly includes a submersible pump (23) mounted on the sealing partition (2). The suction port of the submersible pump (23) extends to the bottom of the tank body (1), and its output end passes through the sealing partition (2) and points to the intermediate mixing area. The electrical wiring of the submersible pump (23) passes through the interior of the sealing partition (2), the connecting rod (22), and the hollow channel of the adjusting screw (3) in sequence, and extends to the exterior of the tank body (1) via the threaded adjusting sleeve (31). The discharge assembly includes a discharge main pipe (4) fixed at the tail end of the tank body (1) and a guide suction pipe (42) disposed inside the tank body (1) and moving synchronously with the sealing partition (2). The discharge main pipe (4) and the guide suction pipe (42) are connected by a retractable corrugated pipe (41). The bottom end of the guide suction pipe (42) is provided with a suction port and contacts the bottom of the tank body (1).

5. The mixed explosives truck for open-pit blasting mines according to claim 4, characterized in that: Two parallel stirring shafts (51) of equal height are provided in the intermediate mixing area. The two ends of the stirring shafts (51) are respectively sealed and rotatably connected to the two sealing partitions (2). The end of the stirring shaft (51) passes through one of the sealing partitions (2) and is fixedly connected to a long shaft gear (52). A power drive mechanism is provided at the bottom of the tank body (1). The power drive mechanism includes a drive spur gear (56) located inside the tank body (1). The drive spur gear (56) and the long shaft gear (52) maintain meshing and transmission. The relationship is such that the driving spur gear (56) can slide relative to the long shaft gear (52) along the axial length direction; the power drive mechanism also includes a stirring drive motor (53) fixed on the outside of the bottom end of the tank body (1), the output shaft of the stirring drive motor (53) is sealed and inserted into the inside of the tank body (1) and connected to a bevel gear (54) set; the bevel gear (54) set is connected to the driving spur gear (56) through a power shaft (55) and is used to transmit the power of the stirring drive motor (53) to the stirring shaft (51).

6. The mixed explosives truck for open-pit blasting mines according to claim 1, characterized in that: It also includes a hollow base beam (9). The hole alignment mechanism includes a support back plate (81), a transverse guide beam (82), and a transverse guide block (85). The transverse guide beam (82) is movably disposed on the support back plate (81) along the extension direction of the vehicle frame, and the transverse guide block (85) is transversely disposed on the transverse guide beam (82). The hollow base beam (9) is disposed on the upper side of the vehicle frame. The hollow base beam (9) is provided with a moving component that moves horizontally along the axial direction of the hollow base beam (9). The moving component rotates... The flexible output hose (43) is connected to a guide roller (923); the input end of the flexible output hose (43) is connected to the explosive production source. The flexible output hose (43) passes through the transverse guide block (85) and enters the hollow base beam (9) in sequence, and passes around the guide roller (923) to form a variable length U-shaped loop. Finally, it extends vertically from the output position below the transverse guide block (85). The external overhang length of the flexible output hose (43) is adjusted by the axial displacement of the moving component in the hollow base beam (9).

7. The mixed explosives truck for open-pit blasting mines according to claim 6, characterized in that: A telescopic drive cylinder (83) is fixed to the rear end of the support back plate (81). The piston end of the telescopic drive cylinder (83) passes horizontally through the support back plate (81) and is fixedly connected to the middle of the transverse guide beam (82). Two horizontal sliding rods (84) are symmetrically fixed at both ends of the transverse guide beam (82). The two horizontal sliding rods (84) slide horizontally through both ends of the support back plate (81). A strip-shaped through groove (821) extending along the length direction of the transverse guide beam (82) is opened through the transverse guide beam (82). The inner rotating part is provided with a transmission screw (86) driven by a motor. The transmission screw (86) is arranged parallel to the extension direction of the transverse guide beam (82) and passes through the transverse guide block (85). It is used to drive the transverse guide block (85) to perform left and right transverse displacement adjustment on the transverse guide beam (82). The inner walls of both sides of the strip-shaped through groove (821) are provided with limiting grooves (822) extending in the transverse direction. The two ends of the side wall of the transverse guide block (85) are provided with sliding flanges (851). The sliding flanges (851) are embedded in the limiting grooves (822).

8. The mixed explosives truck for open-pit blasting mines according to claim 7, characterized in that: Two parallel guide rails (91) extending along the direction of the hollow base beam (9) are provided in the middle of the inner bottom surface of the hollow base beam (9). The moving component includes two walking supports (921). The two walking supports (921) are respectively equipped with the two guide rails (91) and are connected by a fixed shaft (922). The guide roller (923) is coaxially rotated and sleeved on the fixed shaft (922). A drive shaft (924) is also rotatably connected between the two walking supports (921). The outer end of the drive shaft (924) is provided with a worm gear reduction mechanism (926) driven by a motor. The drive shaft (924) is provided with two drive gears (925). The top side of the guide rail (91) is a rack structure. The two drive gears (925) mesh with the top side rack structure of the two guide rails (91).

9. The mixed explosives truck for open-pit blasting mines according to claim 8, characterized in that: It also includes a tank body (1) mounted on the chassis and a sensitizer storage tank (6) mounted at the rear end of the tank body (1). The rear end of the tank body (1) is provided with a discharge main pipe (4) for discharging base material. The lower end of the sensitizer storage tank (6) is provided with a sensitizer output branch pipe (61). The discharge main pipe (4) and the sensitizer output branch pipe (61) are both connected to the flexible output hose (43). It also includes a mixing cylinder (7), which is located above the rear end of the hollow base beam (9). The mixing cylinder (7) has a horizontal cylindrical structure. The discharge main pipe (4) and the sensitizer output branch pipe (61) are both connected to the front end of the mixing cylinder (7). A stirring main shaft (71) is transversely installed inside the mixing cylinder (7). A spiral blade (72) is fixedly installed on the stirring main shaft (71). The spiral blade (72) is spirally wound around the surface of the stirring main shaft (71). The rear end of the mixing cylinder (7) is provided with an explosive discharge port (73) connected to the flexible output hose (43).

10. The mixed explosives truck for open-pit blasting mines according to claim 9, characterized in that: The transverse guide block (85) has an upper vertical through hole (852) through it. The base module (87) is connected to the lower part of the transverse guide block (85) through a connecting frame (88). The base module (87) has a lower vertical through hole (871) coaxially arranged with the upper vertical through hole (852). The hollow base beam (9) has a hole block (93) fixedly provided at the middle of its front end. The hole block (93) has two openings at the top and bottom for the flexible output hose (43) to pass through and exit. The base module (87) is perforated and has two friction drive shafts (872) that mesh with a gear transmission pair (873) inside. Flexible pressure rollers (874) are coaxially mounted on the friction drive shafts (872). The two flexible pressure rollers (874) protrude from the lower vertical through hole (871) and press against the walls on both sides of the flexible output hose (43). The end of the flexible output hose (43) is provided with a terminal counterweight (431) for guiding the lowering.

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