A crushing system and method based on controllable shock wave pre-fracture and intelligent sorting

Abstract

This application discloses a crushing system and method based on controllable shock wave pre-fracture and intelligent sorting. The system includes a shock wave crushing device and an intelligent ore sorting device. The lower end of the upper crushing frame of the shock wave crushing device is slidably disposed within the upper end of the lower crushing frame. Multiple stone passage holes are provided on the walls of both the upper and lower crushing frames. Rotating shafts are provided on the left and right sides of the lower crushing frame, and are rotatably connected to the inner wall of the crushing chamber. The output shaft of the tilting mechanism is connected to the end of one of the rotating shafts. A reflecting cavity is provided at the lower end of the shock wave reflector, and a mounting hole is provided at the upper end of the shock wave reflector. Two electrode seats are provided on the lower end face of the telescopic arm, and the two ends of a metal wire are respectively connected to the two electrode seats. A force-applying ring is circumferentially disposed at the lower part of the telescopic arm, and the lower end face of the force-applying ring is used to abut against the upper end face of the shock wave reflector. This application solves the problems of easy clogging of the fine crushing chamber and high energy consumption in traditional crushing processes in the prior art.

Description

Technical Field

[0001] This application belongs to the field of ore crushing technology, specifically relating to a crushing system and method based on controllable shock wave pre-fracture and intelligent sorting. Background Technology

[0002] Mineral resources are the "food" of industrial development, and the mining industry is the "cornerstone" of national economic development. Currently, mineral processing is based on the traditional mineral processing technology of "crushing-grinding-beneficiation," which uses mechanical equipment to carry out the crushing and grinding processes. As a result, the fine crushing chamber of the mechanical equipment is prone to clogging. At the same time, the crushing and grinding processes have prominent problems such as high energy consumption, serious over-grinding, and significant subsequent resource losses, making it difficult to meet the current mineral production needs. Summary of the Invention

[0003] This application provides a crushing system and method based on controllable shock wave pre-fracture and intelligent sorting, which solves the problems of easy clogging of the fine crushing chamber and high energy consumption in traditional crushing processes in the prior art.

[0004] To achieve the above objectives, embodiments of the present invention provide a ore crushing system based on controllable shock wave pre-fracture and intelligent sorting, including a shock wave ore crushing device and an intelligent ore sorting device;

[0005] The shock wave crushing device includes a crushing bin, an upper crushing frame, a lower crushing frame, a tilting mechanism, a shock wave reflector, a telescopic arm, a metal wire, and a force-applying ring.

[0006] The upper crushing frame and the lower crushing frame are located in the upper part of the crushing bin;

[0007] The upper crushing frame has an opening at its lower end, and the lower crushing frame has an opening at its upper end. The lower end of the upper crushing frame is slidably disposed inside the upper end of the lower crushing frame. Multiple stone passage holes are provided on the wall panels of both the upper and lower crushing frames. Rotating shafts are provided on the left and right sides of the lower crushing frame. The rotating shafts are rotatably connected to the inner wall of the crushing bin, and the output shaft of the tilting mechanism is connected to the end of one of the rotating shafts.

[0008] The lower end of the shock wave reflector is provided with a reflective cavity, and the upper end of the shock wave reflector is provided with a mounting hole communicating with the reflective cavity. The lower end of the shock wave reflector is fixedly connected to the top of the upper gravel frame. The lower end face of the telescopic arm is provided with two electrode seats, and the two ends of the metal wire are respectively connected to the two electrode seats. A force-applying ring is provided circumferentially at the lower part of the telescopic arm, and the lower end face of the force-applying ring is used to abut against the upper end face of the shock wave reflector.

[0009] In one possible implementation, the flipping mechanism includes a telescopic device, a first transmission rod, and a second transmission rod;

[0010] The end of the rotating shaft extends out of the crushing bin and is hinged to one end of the first transmission rod. The two ends of the second transmission rod are respectively hinged to the other end of the first transmission rod and the telescopic end of the telescopic device.

[0011] In one possible implementation, top rods are vertically installed on both the top wall plate inside the upper crushed stone frame and the bottom wall plate inside the lower crushed stone frame, and the ends of the top rods are pointed.

[0012] In one possible implementation, support columns are provided on both the left and right sides of the bottom of the lower crushing frame, and a support platform is provided on the inner wall of the crushing bin, with the lower end face of the support column abutting against the upper end face of the support platform.

[0013] In one possible implementation, the lower end face of the support column and the upper end face of the support platform are both arc surfaces, which coincide with the surface of a virtual cylinder, and the center line of the rotation axis passes through the axis of the virtual cylinder.

[0014] This invention also provides a ore crushing method based on controllable shock wave pre-fracture and intelligent sorting, employing the aforementioned ore crushing system based on controllable shock wave pre-fracture and intelligent sorting, comprising the following steps:

[0015] Place the ore to be crushed into the space formed by the upper and lower crushing frames, and then pour water into the crushing chamber.

[0016] Repeat the following steps until the ore crushing process is complete:

[0017] Control the telescopic boom to move downwards, so that the lower end of the telescopic boom passes through the top wall of the crushing chamber and the mounting holes of the shock wave reflector in sequence, until the metal wire is located inside the shock wave reflector, at which point the metal wire is in the water;

[0018] High-voltage direct current is applied to the two electrode holders. After the high-voltage direct current is applied to the metal wire, the metal wire explodes to form a shock wave. The shock wave acts on the ore and breaks it or creates cracks.

[0019] The telescopic arm is controlled to move downward. The telescopic arm drives the shock wave reflector to move downward through the force ring. The shock wave reflector drives the upper crushing frame to move downward, so that the upper crushing frame and the lower crushing frame move relative to each other. Then, the upper crushing frame and the lower crushing frame squeeze the ore, causing the ore to break along its cracks.

[0020] Control the telescopic arm to move upward, so that the electrode holder is removed from the crushing chamber, and then replace it with a new metal wire;

[0021] Control the tilting mechanism to rotate. The output shaft of the tilting mechanism drives the rotating shaft to rotate, which in turn drives the upper and lower crushing frames to rotate as a whole, so that crushed stones smaller than the stone passage fall to the bottom of the crushing bin, and then the tilting mechanism is reset.

[0022] After the ore crushing process is completed, the crushed stone at the bottom of the crushing bin is transported to the feed inlet of the intelligent ore sorting device, which separates the coarse ore from the concentrate.

[0023] In one possible implementation, when the upper and lower crushing frames move relative to each other, the ore is crushed by the top rods of the upper and lower crushing frames.

[0024] In one possible implementation, the shock wave reflector causes the upper rubble frame to move downward, while the lower rubble frame is supported on the support platform by a support column, keeping it relatively stationary, thereby allowing the upper and lower rubble frames to move relative to each other.

[0025] In one possible implementation, when the upper and lower rubble frames rotate as a whole, the lower end face of the support column slides along the upper end face of the support platform.

[0026] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0027] This invention provides a crushing system and method based on controllable shock wave pre-fracture and intelligent sorting. Water injection into the crushing chamber is primarily for shock wave operation. After water injection, components within the crushing chamber, such as the ore, upper crushing frame, and lower crushing frame, have buoyancy, facilitating subsequent processes such as flipping the upper and lower crushing frames. The inner wall of the shock wave reflector has a parabolic structure, with metal wires located inside to reflect the shock wave, thus improving the crushing effect. After shock wave operation, cracks form inside the ore, reducing its overall strength, which facilitates compression of the ore by the upper and lower crushing frames, causing the ore to crush along these cracks and improving crushing efficiency. The crushed ore falls to the bottom of the crushing chamber during the flipping process, and the ore remaining in the upper and lower crushing frames is then subjected to shock wave operation again. This invention enables ore crushing with high efficiency, solving the problems of easy clogging of the fine crushing chamber and high energy consumption in traditional crushing processes. Intelligent ore sorting equipment can sort crushed stones to separate coarse and concentrate minerals, thus achieving mineral pre-selection and preparing for the next step of mineral extraction. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the shock wave ore crushing device provided in Embodiment 1 of the present invention.

[0030] Figure 2 This is a schematic diagram of the upper and lower crushing frames provided in an embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the upper crushing frame provided in an embodiment of the present invention.

[0032] Figure 4 This is a schematic diagram of the lower crushing frame provided in an embodiment of the present invention.

[0033] Figure 5 This is a schematic diagram of the flipping mechanism provided in an embodiment of the present invention.

[0034] Figure 6 This is a schematic diagram of the installation of the metal wire and the force-applying ring provided in an embodiment of the present invention.

[0035] Figure 7 This is a schematic diagram of the structure of the shock wave reflector provided in an embodiment of the present invention.

[0036] Figure 8 This is a schematic diagram of the installation of the limiting post provided in an embodiment of the present invention.

[0037] Figure 9 This is a schematic diagram illustrating the cooperation between the support column and the support platform provided in an embodiment of the present invention.

[0038] Figure 10 This is a schematic diagram of the mineral pre-selection system based on controllable shock wave crushing and intelligent sorting provided in Embodiment 2 of the present invention.

[0039] Reference numerals: 1-Crushing bin; 2-Upper crushing frame; 3-Lower crushing frame; 4-Passing hole; 5-Rotating shaft; 6-Tilting mechanism; 61-Telescopic device; 62-First transmission rod; 63-Second transmission rod; 7-Shock wave reflector; 71-Reflection cavity; 72-Mounting hole; 8-Metal wire; 9-Telescopic arm; 10-Force ring; 11-Top rod; 12-Upright rod; 121-Annular boss; 13-Sleeve rod; 14-Compression spring; 15-Limiting post; 16-Supporting post; 17-Supporting platform; 19-Transfer bin; 191-Chutter; 20-Transfer frame; 22-Guide plate; 23-Elastic upright post; 231-Supporting column; 232-Buffer spring; 24-Intelligent ore sorting device. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0042] like Figures 1 to 10 As shown, the ore crushing system based on controllable shock wave pre-fracture and intelligent sorting provided in this embodiment of the invention includes a shock wave ore crushing device and an intelligent ore sorting device 24.

[0043] The shock wave crushing device includes a crushing chamber 1, an upper crushing frame 2, a lower crushing frame 3, a tilting mechanism 6, a shock wave reflector 7, a telescopic arm 9, a metal wire 8, and a force ring 10.

[0044] The upper crushing frame 2 and the lower crushing frame 3 are located in the upper part of the crushing bin 1.

[0045] The upper crushing frame 2 has an opening at its lower end, and the lower crushing frame 3 has an opening at its upper end. The lower end of the upper crushing frame 2 is slidably positioned inside the upper end of the lower crushing frame 3. Multiple stone passage holes 4 are provided on the wall panels of both the upper and lower crushing frames 2 and 3. Rotating shafts 5 are provided on the left and right sides of the lower crushing frame 3. The rotating shafts 5 are rotatably connected to the inner wall of the crushing bin 1. The output shaft of the tilting mechanism 6 is connected to the end of one of the rotating shafts 5.

[0046] The lower end of the shock wave reflector 7 is provided with a reflective cavity 71, and the upper end of the shock wave reflector 7 is provided with a mounting hole 72 communicating with the reflective cavity 71. The lower end of the shock wave reflector 7 is fixedly connected to the top of the upper gravel frame 2. The lower end face of the telescopic arm 9 is provided with two electrode seats, and the two ends of the metal wire 8 are respectively connected to the two electrode seats. The lower part of the telescopic arm 9 is provided with a force-applying ring 10 in the circumferential direction, and the lower end face of the force-applying ring 10 is used to abut against the upper end face of the shock wave reflector 7.

[0047] It should be noted that the stone-passing hole 4 is used to screen crushed stone of a set particle size. The flipping mechanism 6 flips the upper crushed stone frame 2 and the lower crushed stone frame 3 via the rotating shaft 5, thereby accelerating the crushed stone screening process. The reflective cavity 71 of the shock wave reflector 7 can reflect the shock wave generated by the metal wire 8 to the crushed stone, thereby improving the ore crushing effect. The end of the metal wire 8 is detachably installed on the electrode holder, which facilitates the replacement of the metal wire 8. The cable of the electrode holder passes through the hole in the center of the telescopic arm 9 and is connected to the pulse power drive source. The telescopic arm 9 drives the shock wave reflector 7 to move downward through the force ring 10, and at the same time, the force ring 10 can seal the mounting hole 72. The telescopic arm 9 is also provided with a sealing ring on the upper part of the force ring 10, which seals the hole in the top wall of the crushing chamber 1 to prevent water from splashing out. The top wall of the crushing chamber 1 is detachable, which facilitates the loading of ore.

[0048] In this embodiment, the flipping mechanism 6 includes a telescopic device 61, a first transmission rod 62, and a second transmission rod 63.

[0049] The end of the rotating shaft 5 extends out of the crushing bin 1 and is hinged to one end of the first transmission rod 62. The two ends of the second transmission rod 63 are respectively hinged to the other end of the first transmission rod 62 and the telescopic end of the telescopic device 61.

[0050] It should be noted that the telescopic end of the telescopic device 61 drives the rotating shaft 5 to rotate via the first transmission rod 62 and the second transmission rod 63, thereby causing the upper crushed stone frame 2 and the lower crushed stone frame 3 to rotate as a whole. Both the telescopic device 61 and the telescopic arm 9 are driven by hydraulic cylinders.

[0051] In this embodiment, top rods 11 are vertically installed on the top wall plate inside the upper crushed stone frame 2 and the bottom wall plate inside the lower crushed stone frame 3, and the ends of the top rods 11 are sharp.

[0052] It should be noted that the end of the top rod 11 abuts against the ore, and the top rod 11 is used to further crush the ore.

[0053] In this embodiment, a plurality of uprights 12 are vertically arranged in the circumference inside the lower crushed stone frame 3, and the lower end of the uprights 12 is connected to the bottom wall plate inside the lower crushed stone frame 3.

[0054] Multiple sleeve rods 13, corresponding one-to-one with upright rods 12, are vertically arranged around the outer circumference of the upper crushed stone frame 2. A compression spring 14 is installed inside the sleeve rod 13. The upper end of the upright rod 12 extends into the lower end of the sleeve rod 13 and abuts against the end of the compression spring 14.

[0055] It should be noted that the upright 12 and sleeve 13 enable the upper crushing frame 2 and the lower crushing frame 3 to slide together. The compression spring 14 can automatically move the upper crushing frame 2 up a certain distance so that the crushed stone can pass through the stone passage 4 better, and also facilitate the adjustment of the ore's posture, which is beneficial for the next crushing.

[0056] In this embodiment, the lower end of the sleeve rod 13 is provided with a threaded hole on the side wall. The end of the limiting post 15 is screwed into the threaded hole and extends into the sleeve rod 13. The upper end of the upright rod 12 is provided with an annular boss 121, and the bottom surface of the annular boss 121 cooperates with the limiting post 15.

[0057] It should be noted that the annular boss 121 and the limiting post 15 work together to prevent the upright 12 and the sleeve 13 from separating. When it is necessary to separate the upright 12 and the sleeve 13, that is, to separate the upper crushed stone frame 2 and the lower crushed stone frame 3, the limiting post 15 can be removed.

[0058] In this embodiment, support columns 16 are provided on both the left and right sides of the bottom of the lower crushing frame 3, and support platforms 17 are provided on the inner wall of the crushing bin 1. The lower end face of the support column 16 is used to abut the upper end face of the support platform 17.

[0059] It should be noted that the support column 16 is used to support the lower crushing frame 3 to avoid the problem of excessive force on the rotating shaft 5 when the upper crushing frame 2 and the lower crushing frame 3 squeeze the ore.

[0060] In this embodiment, an elastic ring is provided between the rotating shaft 5 and the inner wall of the crushing bin 1. The elastic ring can be compressed by about 1 cm when the rotating shaft 5 moves downward, thereby preventing the rotating shaft 5 from bearing the thrust applied by the telescopic arm 9.

[0061] In this embodiment, the lower end face of the support column 16 and the upper end face of the support platform 17 are both arc surfaces, which coincide with the surface of a virtual cylinder, and the center line of the rotation axis 5 passes through the axis of the virtual cylinder.

[0062] It should be noted that when the upper gravel frame 2 and the lower gravel frame 3 rotate as a whole, the lower end face of the support column 16 and the upper end face of the support platform 17 are set as matching arc surfaces. Therefore, it will not affect the overall rotation of the upper gravel frame 2 and the lower gravel frame 3, and avoid the problem that the lower end face of the support column 16 and the upper end face of the support platform 17 are both flat, which would cause the support column 16 and the support platform 17 to get stuck.

[0063] This embodiment also includes a transfer chamber 19, a transfer frame 20, and a hoisting mechanism.

[0064] The transfer bin 19 is located between the crushing bin 1 and the feed inlet of the intelligent ore sorting device 24, and the lower parts of the transfer bin 19 and the crushing bin 1 are connected.

[0065] A guide plate 22 is provided at the lower part of the crushing bin 1. The guide plate 22 is inclined. A transfer frame 20 is provided on the lower side of the guide plate 22. The transfer frame 20 is slidably disposed in the transfer bin 19. The hoisting rope of the hoisting mechanism extends into the transfer bin 19 and is connected to the transfer frame 20.

[0066] It should be noted that when the crushed stone falls onto the guide plate 22 at the bottom of the crushing bin 1, the guide plate 22 guides the crushed stone into the transfer frame 20. Then, the transfer frame 20 is lifted by the hoisting rope of the hoisting mechanism until the transfer frame 20 is above the transfer bin 19. At this time, the water in the transfer frame 20 flows into the transfer bin 19 through the drainage hole at its bottom. Subsequently, the crushed stone in the transfer frame 20 can be transferred to the feed port of the intelligent ore sorting device 24.

[0067] In this embodiment, a vertical groove 191 is provided on the inner wall of the transfer chamber 19, and the pulleys on the side wall of the transfer frame 20 are slidably disposed in the groove 191, so that the transfer frame 20 is slidably disposed in the transfer chamber 19.

[0068] In this embodiment, the guide plate 22 is installed in the lower part of the crushing bin 1 by a plurality of elastic columns 23. The elastic columns 23 include connected support columns 231 and buffer springs 232.

[0069] The lower end of the support column 231 is connected to the bottom wall inside the crushing bin 1, and the upper end of the buffer spring 232 is connected to the lower surface of the guide plate 22.

[0070] It should be noted that the elastic column 23 can buffer the falling gravel on the one hand, and on the other hand, it can use the impact force of the gravel to make the gravel gathered on the guide plate 22 slide into the transfer frame 20.

[0071] like Figures 1 to 10 As shown, the present invention provides a ore crushing method based on controllable shock wave pre-fracture and intelligent sorting, employing the aforementioned ore crushing system based on controllable shock wave pre-fracture and intelligent sorting, including the following steps:

[0072] Place the ore to be crushed into the space formed by the upper crushing frame 2 and the lower crushing frame 3, and then inject water into the crushing chamber 1.

[0073] Repeat the following steps until the ore crushing process is complete:

[0074] Control the telescopic arm 9 to move downwards, so that the lower end of the telescopic arm 9 passes through the top wall of the crushing chamber 1 and the mounting hole 72 of the shock wave reflector 7 in sequence, until the metal wire 8 is located inside the shock wave reflector 7, at which point the metal wire 8 is located in the water.

[0075] High-voltage direct current is applied to the two electrode seats. After the high-voltage direct current is applied to the metal wire 8, the metal wire 8 explodes to form a shock wave. The shock wave acts on the ore and breaks it or creates cracks.

[0076] The telescopic arm 9 is controlled to move downward. The telescopic arm 9 drives the shock wave reflector 7 to move downward through the force ring 10. The shock wave reflector 7 drives the upper crushing frame 2 to move downward, so that the upper crushing frame 2 and the lower crushing frame 3 move relative to each other. Then, the upper crushing frame 2 and the lower crushing frame 3 squeeze the ore, causing the ore to break along its cracks.

[0077] Control the telescopic arm 9 to move upward, so that the electrode seat is removed from the crushing chamber 1, and then replace it with a new metal wire 8.

[0078] The control mechanism 6 operates, and the output shaft of the control mechanism 6 drives the rotating shaft 5 to rotate, which in turn drives the upper crushing frame 2 and the lower crushing frame 3 to rotate as a whole, so that the crushed stones smaller than the stone passage hole 4 fall to the bottom of the crushing bin 1, and then the control mechanism 6 is reset.

[0079] After the ore crushing is completed, the crushed stone at the bottom of the crushing bin 1 is transported to the feed inlet of the intelligent ore sorting device 24, which separates the coarse ore and concentrate.

[0080] It should be noted that the water filling in the crushing bin 1 is mainly for the purpose of realizing shock wave operation. After water filling, the components in the crushing bin 1, such as ore, upper crushing frame 2 and lower crushing frame 3, all have a certain buoyancy, which also facilitates subsequent processes such as flipping the upper crushing frame 2 and lower crushing frame 3.

[0081] The inner wall of the shock wave reflector 7 has a parabolic structure, and the metal wire 8 is located inside the shock wave reflector 7, thereby realizing the reflection of the shock wave and thus making the breaking effect better.

[0082] After the shock wave operation, cracks form inside the ore, reducing its overall strength. This facilitates the compression of the ore by the upper crushing frame 2 and the lower crushing frame 3, causing the ore to break along the cracks and improving crushing efficiency. The crushed ore falls to the bottom of the crushing chamber 1 during the tumbling process. The ore remaining in the upper crushing frame 2 and the lower crushing frame 3 is then subjected to another shock wave operation.

[0083] The intelligent ore sorting device 24 uses the JPXRT intelligent ore sorting machine. This sorting machine uses different spectral imaging to identify the ore's alteration color, texture, fluorescence characteristics, absorption and reflection of specific spectral energy, penetration and attenuation of specific spectral energy, spectral transmittance, etc., to perform rapid and accurate qualitative and quantitative analysis of the ore and quickly complete the ore sorting task.

[0084] In this embodiment, when the upper crushing frame 2 and the lower crushing frame 3 move relative to each other, the ore is crushed by the top rod 11 of the upper crushing frame 2 and the top rod 11 of the lower crushing frame 3.

[0085] It should be noted that applying force to the ore through the top rod 11 helps to increase the pressure and improve the crushing efficiency.

[0086] In this embodiment, the shock wave reflector 7 drives the upper gravel frame 2 to move downward, and the lower gravel frame 3 is supported on the support platform 17 by the support column 16, so that it remains relatively stationary, thereby causing the upper gravel frame 2 and the lower gravel frame 3 to move relative to each other.

[0087] It should be noted that the lower gravel frame 3 is supported on the support platform 17 by the support column 16, so the thrust applied by the shock wave reflector 7 acts less on the rotating shaft 5, thereby protecting the rotating shaft 5.

[0088] In this embodiment, when the upper crushed stone frame 2 and the lower crushed stone frame 3 rotate as a whole, the lower end face of the support column 16 slides along the upper end face of the support platform 17.

[0089] It should be noted that this technology enables the upper crushed stone frame 2 and the lower crushed stone frame 3 to rotate smoothly, avoiding the problem of jamming caused by the flat contact surfaces of the support column 16 and the support platform 17.

[0090] In this embodiment, it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within the present invention.

Claims

1. A ore crushing system based on controllable shock wave pre-fracture and intelligent sorting, characterized in that: Including shock wave crushing devices and intelligent ore sorting devices (24); The shock wave crushing device includes a crushing chamber (1), an upper crushing frame (2), a lower crushing frame (3), a flipping mechanism (6), a shock wave reflector (7), a telescopic arm (9), a metal wire (8), and a force ring (10). The upper crushing frame (2) and the lower crushing frame (3) are located in the upper part of the crushing bin (1); The upper crushing frame (2) has an opening at its lower end, and the lower crushing frame (3) has an opening at its upper end. The lower end of the upper crushing frame (2) is slidably disposed inside the upper end of the lower crushing frame (3). Multiple stone passage holes (4) are provided on the wall panels of both the upper crushing frame (2) and the lower crushing frame (3). Rotating shafts (5) are provided on the left and right sides of the lower crushing frame (3). The rotating shafts (5) are rotatably connected to the inner wall of the crushing bin (1). The output shaft of the flipping mechanism (6) is connected to the end of one of the rotating shafts (5). The lower end of the shock wave reflector (7) is provided with a reflective cavity (71), and the upper end of the shock wave reflector (7) is provided with a mounting hole (72) communicating with the reflective cavity (71). The lower end of the shock wave reflector (7) is fixedly connected to the top of the upper gravel frame (2). The lower end face of the telescopic arm (9) is provided with two electrode seats. The two ends of the metal wire (8) are respectively connected to the two electrode seats. A force-applying ring (10) is provided circumferentially at the lower part of the telescopic arm (9). The lower end face of the force-applying ring (10) is used to abut against the upper end face of the shock wave reflector (7).

2. The ore crushing system based on controllable shock wave pre-fracture and intelligent sorting according to claim 1, characterized in that: The flipping mechanism (6) includes a telescopic device (61), a first transmission rod (62), and a second transmission rod (63); The end of the rotating shaft (5) extends out of the crushing bin (1) and is hinged to one end of the first transmission rod (62). The two ends of the second transmission rod (63) are respectively hinged to the other end of the first transmission rod (62) and the telescopic end of the telescopic device (61).

3. The ore crushing system based on controllable shock wave pre-fracture and intelligent sorting according to claim 2, characterized in that: A top rod (11) is vertically installed on the top wall plate inside the upper crushed stone frame (2) and the bottom wall plate inside the lower crushed stone frame (3), and the end of the top rod (11) is sharp.

4. The ore crushing system based on controllable shock wave pre-fracture and intelligent sorting according to claim 3, characterized in that: Support columns (16) are provided on both the left and right sides of the bottom of the lower crushing frame (3), and a support platform (17) is provided on the inner wall of the crushing bin (1). The lower end face of the support column (16) is used to abut the upper end face of the support platform (17).

5. The ore crushing system based on controllable shock wave pre-fracture and intelligent sorting according to claim 4, characterized in that: The lower end face of the support column (16) and the upper end face of the support platform (17) are both arc surfaces, which coincide with the surface of a virtual cylinder, and the center line of the rotation axis (5) passes through the axis of the virtual cylinder.

6. A ore crushing method based on controllable shock wave pre-fracture and intelligent sorting, characterized in that, The ore crushing system based on controllable shock wave pre-fracture and intelligent sorting as described in any one of claims 1 to 5 includes the following steps: Place the ore to be crushed into the space formed by the upper crushing frame (2) and the lower crushing frame (3), and then inject water into the crushing bin (1); Repeat the following steps until the ore crushing process is complete: Control the telescopic arm (9) to move down, so that the lower end of the telescopic arm (9) passes through the top wall of the crushing bin (1) and the mounting hole (72) of the shock wave reflector (7) in sequence, until the metal wire (8) is located inside the shock wave reflector (7), at which time the metal wire (8) is located in the water; High voltage direct current is applied to the two electrode seats. After the high voltage direct current is applied to the metal wire (8), the metal wire (8) explodes to form a shock wave. The shock wave acts on the ore and breaks it or creates cracks. Control the telescopic arm (9) to move down. The telescopic arm (9) drives the shock wave reflector (7) to move down through the force ring (10). The shock wave reflector (7) drives the upper crushing frame (2) to move down, so that the upper crushing frame (2) and the lower crushing frame (3) move relative to each other. Then, the upper crushing frame (2) and the lower crushing frame (3) squeeze the ore, so that the ore is crushed along its cracks. Control the telescopic arm (9) to move upward, so that the electrode seat is moved out of the crushing chamber (1), and then replace it with a new metal wire (8); Control the operation of the flipping mechanism (6). The output shaft of the flipping mechanism (6) drives the rotating shaft (5) to rotate, which in turn drives the upper crushed stone frame (2) and the lower crushed stone frame (3) to rotate as a whole, so that the crushed stone smaller than the stone passage (4) falls to the bottom of the crushing bin (1), and then the flipping mechanism (6) is reset. After the ore crushing is completed, the crushed stone at the bottom of the crushing bin (1) is transported to the feed inlet of the intelligent ore sorting device (24), which separates the coarse ore and concentrate.

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