Ore crushing system and method based on controllable shock wave presplitting and intelligent sorting

Abstract

The invention discloses an ore crushing system and method based on controllable shock wave presplitting and intelligent sorting, the system comprises a shock wave ore crushing device and an intelligent ore sorting device, and the lower end of an upper stone crushing frame of the shock wave ore crushing device is slidably arranged in the upper end of a lower stone crushing frame; a plurality of stone passing holes are formed in wall plates of the upper stone crushing frame and the lower stone crushing frame; rotating shafts are arranged on the left side and the right side of the lower stone crushing frame, the rotating shafts are rotationally connected to the inner wall of the ore crushing bin, and an output shaft of the overturning mechanism is connected to the end of one rotating shaft; a reflecting cavity is formed in the lower end of the shock wave reflecting cover, a mounting hole is formed in the upper end of the shock wave reflecting cover, two electrode holders are arranged on the lower end face of the telescopic arm, the two ends of the metal wire are connected to the two electrode holders respectively, a force application ring is arranged on the lower portion of the telescopic arm in the circumferential direction, and the lower end face of the force application ring is used for abutting against the upper end face of the shock wave reflecting cover. The problems that in a traditional crushing process in the prior art, a fine crushing cavity is prone to being blocked, and crushing and grinding energy consumption is high are solved.

Description

Technical Field

[0001] The present application belongs to the technical field of ore crushing, and specifically relates to an ore crushing system and method based on controllable shock wave pre-splitting and intelligent sorting. Background Art

[0002] Mineral resources are the "food" of industrial development, and mining is the "foundation" of national economic development. my country is the world's largest manufacturing country, and its metal production and consumption account for 50% of the world's total, ranking first in the world for more than 10 consecutive years. However, resources such as iron, copper, aluminum, nickel, chromium, and cobalt are heavily dependent on imports, with foreign dependence exceeding 50%. my country is also a major mining country, with metal ore production ranking first in the world, among which steel has ranked first in the world for 17 consecutive years.

[0003] In the development of domestic mineral resources, mining solid waste accounts for 80% to 85% of the total industrial solid waste, and mining pollutes 2.4 billion m3 of groundwater. 3 / a, equivalent to 1.5 Gezhouba power station storage capacity. Mining and smelting waste gas and dust are important sources of haze, accounting for 30% of the total industrial waste gas. Mining solid waste covers an area of ​​58,200 km 2 , equivalent to the area of ​​5 Tianjin cities.

[0004] At present, mineral processing technology is based on the traditional "crushing-grinding-ore dressing" technology. The crushing and grinding process is carried out by mechanical equipment. Therefore, the fine crushing chamber of the mechanical equipment is prone to blockage. At the same time, the crushing and grinding process has prominent problems such as high energy consumption, serious over-crushing, and subsequent resource loss, which makes it difficult to meet the existing mineral production needs. Summary of the invention

[0005] The embodiments of the present application provide a ore crushing system and method based on controllable shock wave pre-splitting and intelligent sorting, thereby solving the problems of easy blockage of the fine crushing chamber and high energy consumption of crushing and grinding in the traditional crushing process in the prior art.

[0006] In order to achieve the above-mentioned object, an embodiment of the present invention provides a ore crushing system based on controllable shock wave pre-splitting and intelligent sorting, including a shock wave ore crushing device and an intelligent ore sorting device;

[0007] The shock wave ore crushing device comprises an ore crushing bin, an upper stone crushing frame, a lower stone crushing frame, a turning mechanism, a shock wave reflection cover, a telescopic arm, a metal wire and a force ring;

[0008] The upper crushing frame and the lower crushing frame are arranged at the upper part of the crushing bin;

[0009] The lower end of the upper crushing frame is provided with an opening, and the upper end of the lower crushing frame is provided with an opening, the lower end of the upper crushing frame is slidably provided in the upper end of the lower crushing frame, and a plurality of stone holes are provided on the wall panels of the upper crushing frame and the lower crushing frame; 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 turnover mechanism is connected to the end of one of the rotating shafts;

[0010] A reflection cavity is arranged at the lower end of the shock wave reflection cover, a mounting hole connected with the reflection cavity is arranged at the upper end of the shock wave reflection cover, the lower end of the shock wave reflection cover is fixedly connected to the top of the upper gravel frame, two electrode seats are arranged at the lower end surface of the telescopic arm, two ends of the metal wire are respectively connected to the two electrode seats, a force ring is arranged circumferentially at the lower part of the telescopic arm, and the lower end surface of the force ring is used to abut against the upper end surface of the shock wave reflection cover.

[0011] In a possible implementation, the flipping mechanism includes a telescopic device, a first transmission rod, and a second transmission rod;

[0012] 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.

[0013] In a possible implementation, a top wall plate in the upper crushed stone frame and a bottom wall plate in the lower crushed stone frame are both vertically provided with a top rod, and the end of the top rod is sharp.

[0014] In a possible implementation, support columns are provided on both left and right sides of the bottom of the lower crushing frame, a support platform is provided on the inner wall of the crushing bin, and the lower end surface of the support column is used to abut against the upper end surface of the support platform.

[0015] In a possible implementation, the lower end surface of the support column and the upper end surface of the support platform are both arc surfaces, the arc surfaces coincide with the surface of a virtual cylinder, and the center line of the rotation axis passes through the axis of the virtual cylinder.

[0016] The embodiment of the present invention further provides a method for crushing ore based on controllable shock wave pre-splitting and intelligent sorting, which adopts the above-mentioned crushing ore system based on controllable shock wave pre-splitting and intelligent sorting, and includes the following steps:

[0017] Put the ore to be crushed into the space formed by the upper crushing frame and the lower crushing frame, and then inject water into the crushing bin;

[0018] Repeat the following steps until the ore is crushed:

[0019] The telescopic arm is controlled to move downward, so that the lower end of the telescopic arm passes through the top wall of the crushing bin and the installation holes of the shock wave reflection cover in sequence until the metal wire is located in the shock wave reflection cover, and at this time the metal wire is located in the water;

[0020] A high voltage direct current is supplied to the two electrode holders. After the high voltage direct current is loaded 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.

[0021] The telescopic arm is controlled to move downward, and the telescopic arm drives the shock wave reflector to move downward through the force ring, and the shock wave reflector drives the upper crushing frame to move downward, so that the upper crushing frame and the lower crushing frame move relatively, and then the ore is squeezed by the upper crushing frame and the lower crushing frame, so that the ore is crushed along the cracks;

[0022] Control the telescopic arm to move upward, move the electrode holder out of the crushing bin, and then replace the new metal wire;

[0023] Control the action of the flipping mechanism. The output shaft of the flipping mechanism drives the rotating shaft to rotate, and then drives the upper and lower crushing frames to rotate as a whole, so that the crushed stones smaller than the stone holes fall to the bottom of the crushing bin, and then the flipping mechanism is reset;

[0024] After the ore crushing work is completed, the crushed stone at the bottom of the crushing bin is transported to the feed port of the intelligent ore sorting device, and the intelligent ore sorting device separates the coarse ore and the concentrate.

[0025] In a possible implementation, when the upper crushing frame and the lower crushing frame move relative to each other, the ore is squeezed by the top rods of the upper crushing frame and the top rods of the lower crushing frame to crush the ore.

[0026] In a possible implementation, the shock wave reflection cover drives the upper stone crushing frame to move downward, and the lower stone crushing frame is supported on the support platform by the support column to keep it relatively still, thereby making the upper stone crushing frame and the lower stone crushing frame move relatively.

[0027] In a possible implementation, when the upper stone crushing frame and the lower stone crushing frame rotate as a whole, the lower end surface of the support column slides along the upper end surface of the support platform.

[0028] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0029] The embodiment of the present invention provides a crushing system and method based on controllable shock wave pre-splitting and intelligent sorting. The water injection in the crushing bin of the present invention is mainly used to realize the shock wave operation. After the water injection, the components in the crushing bin, such as ore, upper crushing frame and lower crushing frame, all have a certain buoyancy, so it is also convenient to flip the upper crushing frame and the lower crushing frame in the subsequent process. The inner wall of the shock wave reflector is a parabolic structure, and the metal wire is located in the shock wave reflector, so as to realize the reflection of the shock wave, thereby making the crushing effect better. After the shock wave operation, cracks are formed inside the ore, and the overall strength decreases, so that it is convenient for the upper crushing frame and the lower crushing frame to squeeze the ore, so that the ore is crushed along the cracks, so as to improve the crushing efficiency. The crushed ore falls to the bottom of the crushing bin during the flipping process, and the ore left in the upper crushing frame and the lower crushing frame is subjected to the shock wave operation again. The present invention can realize the crushing of ore with high crushing efficiency, and solves the problems of easy blockage of the fine crushing chamber and high energy consumption of crushing and grinding in the traditional crushing process in the prior art. Intelligent ore sorting equipment can be used to sort the crushed gravel, and then screen out the coarse ore and concentrate, realizing the pre-selection of minerals and preparing for the next step of mineral extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is a schematic diagram of the structure of the shock wave ore crushing device provided in Example 1 of the present invention.

[0032] Figure 2 A schematic structural diagram of an upper crushing frame and a lower crushing frame provided in an embodiment of the present invention.

[0033] Figure 3 A schematic structural diagram of an upper stone crushing frame provided in an embodiment of the present invention.

[0034] Figure 4 A schematic structural diagram of a lower crushing frame provided in an embodiment of the present invention.

[0035] Figure 5 A schematic structural diagram of a flipping mechanism provided in an embodiment of the present invention.

[0036] Figure 6 A schematic diagram of the installation of a metal wire and a force ring provided in an embodiment of the present invention.

[0037] Figure 7 A schematic structural diagram of a shock wave reflection cover provided in an embodiment of the present invention.

[0038] Figure 8 A schematic diagram of the installation of the limiting column provided in an embodiment of the present invention.

[0039] Fig. 9 A schematic diagram of the coordination of a support column and a support platform provided in an embodiment of the present invention.

[0040] Fig.10 A schematic diagram of the structure of a mineral pre-selection system based on controllable shock wave crushing and intelligent sorting provided in the second embodiment of the present invention.

[0041] Figure markings: 1-crushing bin; 2-upper crushing frame; 3-lower crushing frame; 4-stone hole; 5-rotating shaft; 6-turning mechanism; 61-telescopic device; 62-first transmission rod; 63-second transmission rod; 7-shock wave reflection cover; 71-reflection chamber; 72-mounting hole; 8-metal wire; 9-telescopic arm; 10-force ring; 11-top rod; 12-vertical rod; 121-annular boss; 13-sleeve rod; 14-compression spring; 15-limiting column; 16-support column; 17-support platform; 19-transfer bin; 191-chute; 20-transfer frame; 22-guide plate; 23-elastic column; 231-pillar; 232-buffer spring; 24-intelligent ore picking device. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the embodiments of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0044] like Figures 1 to 10 As shown, the ore crushing system based on controllable shock wave pre-splitting and intelligent sorting provided by the embodiment of the present invention includes a shock wave ore crushing device and an intelligent ore sorting device 24.

[0045] The shock wave ore crushing device comprises an ore crushing bin 1, an upper stone crushing frame 2, a lower stone crushing frame 3, a turning mechanism 6, a shock wave reflection cover 7, a telescopic arm 9, a metal wire 8 and a force ring 10.

[0046] The upper crushing frame 2 and the lower crushing frame 3 are arranged at the upper part of the crushing bin 1 .

[0047] The lower end of the upper crushing frame 2 is open, and the upper end of the lower crushing frame 3 is open. The lower end of the upper crushing frame 2 is slidably arranged in the upper end of the lower crushing frame 3. A plurality of stone holes 4 are arranged on the wall panels of the upper crushing frame 2 and the lower crushing frame 3. Rotating shafts 5 are arranged 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, and the output shaft of the turning mechanism 6 is connected to the end of one of the rotating shafts 5.

[0048] A reflection cavity 71 is provided at the lower end of the shock wave reflection cover 7, and a mounting hole 72 connected to the reflection cavity 71 is provided at the upper end of the shock wave reflection cover 7. The lower end of the shock wave reflection cover 7 is fixedly connected to the top of the upper stone crushing frame 2, and two electrode seats are provided on the lower end surface of the telescopic arm 9, and the two ends of the metal wire 8 are respectively connected to the two electrode seats. A force ring 10 is provided in the circumferential direction of the lower part of the telescopic arm 9, and the lower end surface of the force ring 10 is used to abut the upper end surface of the shock wave reflection cover 7.

[0049] It should be noted that the stone hole 4 is used to screen the crushed stones of the set particle size. The turning mechanism 6 turns the upper crushed stone frame 2 and the lower crushed stone frame 3 by rotating the shaft 5, thereby accelerating the screening process of the crushed stones. The reflection cavity 71 of the shock wave reflection cover 7 can reflect the shock wave generated by the metal wire 8 to the crushed stones, thereby improving the ore crushing effect. The end of the metal wire 8 can be detachably mounted on the electrode holder, which is convenient for the replacement of the metal wire 8. The cable of the electrode holder is connected to the pulse power drive source after passing through the hole in the center of the telescopic arm 9. The telescopic arm 9 drives the shock wave reflection cover 7 to move downward through the force ring 10, and the force ring 10 can block the mounting hole 72 at the same time. The telescopic arm 9 is also provided with a closed ring on the upper part of the force ring 10, and the closed ring blocks the hole on the top wall of the crushing bin 1 to prevent water from splashing out. The top wall of the crushing bin 1 is detachably arranged to facilitate the placement of ore.

[0050] In this embodiment, the turning mechanism 6 includes a telescopic device 61 , a first transmission rod 62 and a second transmission rod 63 .

[0051] 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 .

[0052] It should be noted that the telescopic end of the telescopic device 61 drives the rotating shaft 5 to rotate through the first transmission rod 62 and the second transmission rod 63, thereby rotating the upper crushing frame 2 and the lower crushing frame 3 as a whole. The driving devices of the telescopic device 61 and the telescopic arm 9 are driven by hydraulic cylinders.

[0053] In this embodiment, a top wall plate in the upper crushing frame 2 and a bottom wall plate in the lower crushing frame 3 are both vertically provided with a push rod 11, and the end of the push rod 11 is sharp.

[0054] It should be noted that the end of the mandrel 11 abuts against the ore, and the mandrel 11 is used to further crush the ore.

[0055] In this embodiment, a plurality of vertical poles 12 are vertically arranged in the circumferential direction inside the lower crushing frame 3 , and the lower ends of the vertical poles 12 are connected to the bottom wall plate inside the lower crushing frame 3 .

[0056] A plurality of sleeve rods 13 corresponding to the vertical rods 12 are vertically arranged on the circumference of the outer portion of the upper crushing frame 2 . A compression spring 14 is arranged inside the sleeve rod 13 . The upper end of the vertical rod 12 extends into the lower end of the sleeve rod 13 and abuts against the end of the compression spring 14 .

[0057] It should be noted that the arrangement of the vertical rod 12 and the sleeve rod 13 can realize the sliding connection between the upper crushing frame 2 and the lower crushing frame 3. The compression spring 14 can automatically move the upper crushing frame 2 up a certain distance so that the crushed stone can better pass through the stone hole 4, and it is also convenient for the ore to adjust its posture, which is beneficial to the next crushing.

[0058] In this embodiment, a threaded hole is provided on the side wall at the lower end of the sleeve rod 13, and the end of the limiting column 15 is screwed into the threaded hole and extends into the sleeve rod 13. An annular boss 121 is provided at the upper end of the vertical rod 12, and the bottom surface of the annular boss 121 cooperates with the limiting column 15.

[0059] It should be noted that the cooperation between the annular boss 121 and the limiting column 15 can prevent the vertical rod 12 and the sleeve rod 13 from being disengaged. When the vertical rod 12 and the sleeve rod 13 need to be disengaged, that is, when the upper crushing frame 2 and the lower crushing frame 3 need to be separated, the limiting column 15 can be removed.

[0060] In this embodiment, support columns 16 are provided on both 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 surface of the support column 16 is used to abut against the upper end surface of the support platform 17 .

[0061] It should be noted that the support column 16 is used to support the lower crushing frame 3 to avoid the problem of large force on the rotating shaft 5 when the upper crushing frame 2 and the lower crushing frame 3 squeeze the ore.

[0062] In this embodiment, an elastic ring is provided between the rotating shaft 5 and the inner wall of the crushing bin 1 , and 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 .

[0063] In this embodiment, the lower end surface of the support column 16 and the upper end surface of the support platform 17 are both arc surfaces, which coincide with the surface of a virtual cylinder, and the center line of the rotating shaft 5 passes through the axis of the virtual cylinder.

[0064] It should be noted that when the upper crushing frame 2 and the lower crushing frame 3 rotate as a whole, the lower end surface of the support column 16 and the upper end surface of the support platform 17 are set to matching arc surfaces, so as not to affect the overall rotation of the upper crushing frame 2 and the lower crushing frame 3, and avoid the problem that the lower end surface of the support column 16 and the upper end surface of the support platform 17 are both planes, causing the support column 16 and the support platform 17 to get stuck.

[0065] In this embodiment, it also includes a transfer bin 19, a transfer frame 20 and a lifting mechanism.

[0066] The transfer bin 19 is arranged between the ore crushing bin 1 and the feed port of the intelligent ore sorting device 24 , and the lower part of the transfer bin 19 and the ore crushing bin 1 is communicated.

[0067] A guide plate 22 is arranged at the lower part of the crushing bin 1, and the guide plate 22 is arranged at an angle. A transfer frame 20 is arranged on the lower side of the guide plate 22, and the transfer frame 20 is slidably arranged in the transfer bin 19. The lifting rope of the lifting mechanism extends into the transfer bin 19 and is connected to the transfer frame 20.

[0068] 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, and then the transfer frame 20 is lifted by the lifting rope of the lifting mechanism until the transfer frame 20 is located above the transfer bin 19. At this time, the water in the transfer frame 20 flows into the transfer bin 19 through the leakage holes at the bottom thereof, and then the crushed stone in the transfer frame 20 can be transferred to the feed port of the intelligent ore picking device 24.

[0069] In this embodiment, a slide groove 191 is vertically arranged on the inner wall of the transfer bin 19, and the pulley on the side wall of the transfer frame 20 is slidably arranged in the slide groove 191, so that the transfer frame 20 is slidably arranged in the transfer bin 19 to realize the structural form in which the transfer frame 20 is slidably arranged in the transfer bin 19.

[0070] In this embodiment, the guide plate 22 is installed at the lower part of the crushing bin 1 through a plurality of elastic columns 23 , and the elastic columns 23 include connected pillars 231 and buffer springs 232 .

[0071] The lower end of the support column 231 is connected to the bottom wall of the crushing bin 1 , and the upper end of the buffer spring 232 is connected to the lower surface of the guide plate 22 .

[0072] It should be noted that the elastic columns 23 can, on the one hand, cushion the falling gravel, and on the other hand, use the impact force of the gravel to make the gravel gathered on the guide plate 22 slide into the transfer frame 20.

[0073] like Figures 1 to 10 As shown, an embodiment of the present invention provides a ore crushing method based on controllable shock wave pre-splitting and intelligent sorting, which adopts the above-mentioned ore crushing system based on controllable shock wave pre-splitting and intelligent sorting, and includes the following steps:

[0074] The ore to be crushed is placed into the space formed by the upper crushing frame 2 and the lower crushing frame 3, and then water is poured into the crushing bin 1.

[0075] Repeat the following steps until the ore is crushed:

[0076] The telescopic arm 9 is controlled to move downward, 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 reflection cover 7 in sequence, until the metal wire 8 is located in the shock wave reflection cover 7, and the metal wire 8 is located in the water.

[0077] High voltage direct current is supplied to the two electrode holders. After the high voltage direct current is loaded to the metal wire 8, the metal wire 8 is electrically exploded to form a shock wave. The shock wave acts on the ore and breaks it or creates cracks.

[0078] The telescopic arm 9 is controlled to move downward, and the telescopic arm 9 drives the shock wave reflection cover 7 to move downward through the force ring 10, and the shock wave reflection cover 7 drives the upper crushing frame 2 to move downward, so that the upper crushing frame 2 and the lower crushing frame 3 move relatively, and then the ore is squeezed by the upper crushing frame 2 and the lower crushing frame 3, so that the ore is crushed along its cracks.

[0079] The telescopic arm 9 is controlled to move upward, so that the electrode holder is moved out of the ore crushing bin 1, and then a new metal wire 8 is replaced.

[0080] The turning mechanism 6 is controlled to move, and the output shaft of the turning mechanism 6 drives the rotating shaft 5 to rotate, thereby driving 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 hole 4 fall to the bottom of the crushing bin 1, and then the turning mechanism 6 is reset.

[0081] After the ore crushing work is completed, the crushed stones at the bottom of the crushing bin 1 are transported to the feed port of the intelligent ore sorting device 24, and the intelligent ore sorting device 24 separates the coarse ore and the concentrate.

[0082] It should be noted that the water injection into the crushing bin 1 is mainly used to realize the shock wave operation. After the water injection, the components in the crushing bin 1, such as ore, the upper crushing frame 2 and the lower crushing frame 3, all have a certain buoyancy, which is also convenient for the subsequent processes such as flipping the upper crushing frame 2 and the lower crushing frame 3.

[0083] The inner wall of the shock wave reflection cover 7 is a parabolic structure, and the metal wire 8 is located inside the shock wave reflection cover 7, so as to realize the reflection of the shock wave and thus achieve a better crushing effect.

[0084] After the shock wave operation, cracks are formed inside the ore, and the overall strength decreases, so that it is easier for the upper crushing frame 2 and the lower crushing frame 3 to squeeze the ore, so that the ore is crushed along the cracks to improve the crushing efficiency. The crushed ore falls to the bottom of the crushing bin 1 during the turning process, and the ore left in the upper crushing frame 2 and the lower crushing frame 3 is subjected to the shock wave operation again.

[0085] The model used by the intelligent ore sorting device 24 is the JPXRT intelligent ore sorting machine, which uses different spectral imaging to analyze the ore's etching color, texture, fluorescence characteristics, absorption and reflection of specific spectral energy, penetration and attenuation of specific spectral energy, spectral transmittance, etc., to conduct rapid and accurate qualitative and quantitative analysis of the ore and quickly complete the ore sorting task.

[0086] In this embodiment, when the upper crushing frame 2 and the lower crushing frame 3 move relative to each other, the ore is squeezed by the top rod 11 of the upper crushing frame 2 and the top rod 11 of the lower crushing frame 3 to crush the ore.

[0087] It should be noted that applying force to the ore through the push rod 11 is helpful to increase the pressure and improve the crushing efficiency.

[0088] In this embodiment, the shock wave reflection cover 7 drives the upper crushing frame 2 to move downward, and the lower crushing frame 3 is supported on the support platform 17 through the support column 16 to keep it relatively still, thereby making the upper crushing frame 2 and the lower crushing frame 3 move relatively.

[0089] It should be noted that the lower stone crushing frame 3 is supported on the support platform 17 through the support columns 16 , so the thrust applied by the shock wave reflection cover 7 acts less on the rotating shaft 5 , thereby protecting the rotating shaft 5 .

[0090] In this embodiment, when the upper crushing frame 2 and the lower crushing frame 3 rotate as a whole, the lower end surface of the support column 16 slides along the upper end surface of the support platform 17 .

[0091] It should be noted that this technical point can make the upper crushing frame 2 and the lower crushing frame 3 rotate smoothly, and avoid the problem that the contact surface between the support column 16 and the support platform 17 is a plane, which may cause the support column 16 and the support platform 17 to be easily stuck.

[0092] In this embodiment, it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A ore crushing system based on controllable shock wave pre-splitting and intelligent sorting, characterized by: It includes a shock wave ore crushing device and an intelligent ore sorting device (24); The shock wave ore crushing device comprises an ore crushing bin (1), an upper stone crushing frame (2), a lower stone crushing frame (3), a turning mechanism (6), a shock wave reflection cover (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 arranged at the upper part of the crushing bin (1); The lower end of the upper crushing frame (2) is provided with an opening, and the upper end of the lower crushing frame (3) is provided with an opening, the lower end of the upper crushing frame (2) is slidably arranged in the upper end of the lower crushing frame (3), and a plurality of stone holes (4) are arranged on the wall panels of the upper crushing frame (2) and the lower crushing frame (3); rotating shafts (5) are arranged on the left and right sides of the lower crushing frame (3), and the rotating shafts (5) are rotatably connected to the inner wall of the crushing bin (1), and the output shaft of the turning 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 reflection cavity (71), the upper end of the shock wave reflector (7) is provided with a mounting hole (72) connected with the reflection cavity (71), the lower end of the shock wave reflector (7) is fixedly connected to the top of the upper stone crushing frame (2), the lower end surface 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, and a force ring (10) is provided in the circumferential direction of the lower part of the telescopic arm (9), and the lower end surface of the force ring (10) is used to abut against the upper end surface of the shock wave reflector (7).

2. The ore crushing system based on controllable shock wave pre-splitting and intelligent sorting according to claim 1 is characterized in that: The turning mechanism (6) comprises 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), and 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-splitting and intelligent sorting according to claim 2 is characterized in that: A top rod (11) is vertically arranged on the top wall plate in the upper crushing frame (2) and the bottom wall plate in the lower crushing frame (3), and the end of the top rod (11) is sharp.

4. The ore crushing system based on controllable shock wave pre-splitting and intelligent sorting according to claim 3 is characterized in that: Support columns (16) are provided on both 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), and the lower end surface of the support column (16) is used to abut against the upper end surface of the support platform (17).

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

6. A ore crushing method based on controllable shock wave pre-splitting and intelligent sorting, characterized in that: The ore crushing system based on controllable shock wave pre-splitting and intelligent sorting as claimed in any one of claims 1 to 5 comprises the following steps: The ore to be crushed is placed in the space formed by the upper crushing frame (2) and the lower crushing frame (3), and then water is poured into the crushing bin (1); Repeat the following steps until the ore is crushed: The telescopic arm (9) is controlled to move downward, 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 reflection cover (7) in sequence, until the metal wire (8) is located in the shock wave reflection cover (7), and at this time, the metal wire (8) is located in the water; A high-voltage direct current is supplied to the two electrode seats. After the high-voltage direct current is loaded onto the metal wire (8), the metal wire (8) is electrically exploded to form a shock wave, which acts on the ore and breaks it or creates cracks; The telescopic arm (9) is controlled to move downward, and the telescopic arm (9) drives the shock wave reflection cover (7) to move downward through the force ring (10), and the shock wave reflection cover (7) drives the upper stone crushing frame (2) to move downward, so that the upper stone crushing frame (2) and the lower stone crushing frame (3) move relative to each other, and then the ore is squeezed by the upper stone crushing frame (2) and the lower stone crushing frame (3), so that the ore is crushed along the cracks; Control the telescopic arm (9) to move upward, so that the electrode holder is moved out of the ore crushing bin (1), and then replace the new metal wire (8); The turning mechanism (6) is controlled to move, and the output shaft of the turning mechanism (6) drives the rotating shaft (5) to rotate, thereby driving 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 hole (4) fall to the bottom of the crushing bin (1), and then the turning mechanism (6) is reset; After the ore crushing work is completed, the crushed stones at the bottom of the crushing bin (1) are transported to the feed port of the intelligent ore sorting device (24), and the intelligent ore sorting device (24) separates the coarse ore and the concentrate.

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