Metal mine prospecting exploration device and method for field porphyry mine area

Abstract

The invention relates to the technical field of geological exploration, and discloses a metal mine prospecting exploration device and method for a field porphyry mine district, and the metal mine prospecting exploration device for the field porphyry mine district comprises a drilling machine, a drilling mechanism arranged at the front part of the drilling machine, and a connecting mechanism arranged in the drilling mechanism, the drilling mechanism comprises a connecting cylinder arranged at the bottom of the drilling machine, a first drill rod arranged at the bottom of the connecting cylinder, a drill bit arranged at the bottom of the first drill rod and an annular groove formed in the inner wall of the first drill rod. By arranging the drilling mechanism, the drilling machine can automatically adjust the flushing water amount during operation so as to adapt to different drilling target hardness, quick connection of the coring device and the drilling rod can be achieved, the assembling process of the coring device and the drilling rod is simplified, meanwhile, sufficient supporting force can be provided, and the situation that a rock core falls off due to insufficient force in the extraction process is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration, and in particular to a device and method for prospecting and exploring metal ores in a field porphyry mining area. Background Art

[0002] The prospecting and exploration equipment for metal ores in porphyry mining areas in the field usually includes equipment such as drilling rigs. The drilling rig is a key device for prospecting and exploration of metal ores in porphyry mining areas in the field. It is mainly composed of a drill bit, a drill rod, a power system, a transmission system, a control system and auxiliary equipment. The drill bit is used to break rocks, and the drill rod transmits power. The power system is usually powered by an engine, and the transmission system transmits power to the drill bit. The control system ensures that the drilling rig operates according to preset parameters. The function of the drilling rig is to extract the core from the underground by rotation and impact, so that geologists can analyze the rock and ore composition of the mining area and determine the existence and grade of metal deposits. Its significance lies in that the drilling rig can efficiently and accurately obtain underground information, providing a scientific basis for the exploration and development of mineral resources. Through the drilling rig, the success rate of prospecting can be greatly improved, the risk of exploration can be reduced, and drilling operations can be provided in the production process to assist in mineral mining.

[0003] Drilling rigs are widely used in the field of mineral exploration, but due to the limitations of their structure and working principle, there are often some problems that cannot be ignored. For example, traditional drilling rigs need to constantly flush the borehole during the drilling process to prevent the debris generated by drilling from clogging the borehole and jamming the drill bit, while maintaining the stability of the inner wall of the borehole. Traditional drilling rigs cannot adaptively adjust the flushing water volume of the drill bit when drilling according to the hardness of the drilling geology. It is easy for the water volume to be too large when the mud core is taken, which will disperse the mud core sample and affect the quality of the mud core. When taking the core, it is easy for the water flow to be too small, resulting in incomplete flushing of the debris. In addition, traditional drilling rigs lack the fixation of the core specimens, which is prone to insufficient core breaking force, resulting in the core falling off, and the core shaking in the corer, resulting in increased fractures. At the same time, the existing corer is connected to the drill rod by threads. During assembly, one of the drill rod and the corer needs to be fixed and the other needs to be rotated. Due to the long length of the drill rod and the corer, operation is inconvenient, and there is a risk of the corer and the drill rod falling off due to the mismatch between the rotation direction and the thread direction. Summary of the invention

[0004] In view of the problems of the prior art, such as the inability to adjust the water volume according to the hardness of the drilling target, the inconvenience of assembly and the lack of core fixation, a metal ore prospecting and exploration device for field porphyry mining areas is proposed.

[0005] The purpose is to enable the flushing water volume to be automatically adjusted according to the hardness of the drilling target, to increase the assembly efficiency, and to fix the core to prevent it from falling off and reduce the risk of fracture.

[0006] The technical solution of the present invention is a metal ore prospecting and exploration device for a field porphyry mining area, comprising a drilling rig, a drilling mechanism arranged at the front of the drilling rig, a connecting mechanism arranged inside the drilling mechanism, and a fixing mechanism arranged inside the connecting mechanism;

[0007] The drilling mechanism includes a connecting tube arranged at the bottom of the drilling rig, a drill rod 1 arranged at the bottom of the connecting tube, a drill bit arranged at the bottom of the drill rod 1, an annular groove opened on the inner wall of the drill rod 1, a drill rod 2 arranged on the inner wall of the annular groove, a limiting ring arranged at the top of the drill rod 2, a downward pressure spring sleeved on the outer wall of the drill rod 2, the top and bottom of the downward pressure spring respectively abut against the top of the annular groove and the top of the limiting ring, two limiting grooves symmetrically opened on the top of the inner wall of the drill rod 1, two hemispherical pins symmetrically arranged on the top of the outer wall of the drill rod 2, a connecting shaft arranged at the bottom of the connecting tube, two water pipes symmetrically arranged on the top of the connecting shaft, a plurality of water inlets in an annular array opened at the bottom of the water pipe, a retaining ring arranged on the top of the outer wall of the water pipe, a pipe sleeve sleeved on the bottom of the water pipe, and a closing spring sleeved on the outer wall of the water pipe, the top and bottom of the closing spring respectively being fixedly connected to the bottom of the retaining ring and the top of the pipe sleeve;

[0008] The connecting mechanism includes a receiving block arranged at the bottom of the connecting shaft, a through hole opened at the top of the receiving block, the bottom of the connecting shaft is rotatably connected to the through hole, a coring barrel arranged at the outside of the connecting block, a special-shaped groove opened inside the receiving block, a positioning ring arranged on the inner wall of the special-shaped groove, an internal spring arranged at the top of the positioning ring, the top and bottom of the internal spring are respectively fixedly connected to the top of the special-shaped groove and the top of the positioning ring, two pressure blocks symmetrically arranged on both sides of the positioning ring, a handle arranged on the top of the pressure block, a pin arranged at the bottom of the pressure block, two slots symmetrically opened at the top of the inner wall of the coring barrel, and a reset spring arranged on the side of the pin away from the pressure block, and the two ends of the reset spring are respectively fixedly connected to the pin and the coring barrel.

[0009] Furthermore, the fixing mechanism includes a blind hole opened at the bottom of the connecting shaft, two support shafts symmetrically arranged at the bottom of the blind hole, a slider arranged on the outside of the support shaft, a torsion spring arranged on the inside of the slider, the two ends of the torsion spring are respectively fixedly connected to the support shaft and the slider, a driving shaft arranged on the inner wall of the blind hole, two guide grooves symmetrically arranged on the outer wall of the driving shaft, the outer side of the slider is slidably connected to the inner wall of the guide groove, a baffle arranged at the bottom of the driving shaft, two lifting rods symmetrically arranged on both sides of the baffle, two sliding grooves symmetrically opened on the inner wall of the core barrel, the lifting rod is slidably connected to the sliding groove, three linear arrays of lower inclined blocks arranged on the side of the lifting rod away from the sliding groove, three linear arrays of circular grooves opened on the inner wall of the core barrel, a retaining ring arranged on the inner wall of the circular groove, and two upper inclined blocks symmetrically arranged on both sides of the retaining ring.

[0010] Furthermore, a circle of annular protrusions is provided at the bottom of the water pipe, and the diameter of the annular protrusions is larger than the inner diameter of the retaining ring.

[0011] Furthermore, the diameter of the baffle matches the inner diameter of the core barrel, and the length of the slide groove is greater than the length of the lifting rod.

[0012] Furthermore, the support shaft has a T-shaped shape, and a T-shaped hole is provided on a side of the sliding block close to the driving shaft.

[0013] Furthermore, a thread is provided on the top of the inner wall of the drill rod 1, and a thread meshing with the drill rod 1 is provided on the bottom of the connecting tube.

[0014] Furthermore, the outer shape of the coupling is an I-shape, and the outer shape of the through hole matches the bottom of the coupling.

[0015] Furthermore, the outer shape of the clamping ring is C-shaped, and the opening directions of the three clamping rings are different.

[0016] Another object of the present invention is to provide a method for prospecting and exploring metal ores in a field porphyry mining area, the purpose of which is to survey the distribution of mineral resources in the mining area by drilling means.

[0017] To achieve the above object, the present invention provides the following technical solution: a method for prospecting and exploring metal ores in a field porphyry mining area, comprising the following steps:

[0018] First, move the drill to the predetermined drilling position and adjust the vertical angle between the drill bit and the ground;

[0019] Then, gradually replace drill bits of different diameters and perform layered drilling until the designed hole depth is reached. During the drilling process, core sampling should be carried out continuously. During the drilling process, flushing fluid is used to cool the drill bit, carry rock powder and maintain the stability of the hole wall, and a core sampler is used to take out the core;

[0020] Finally, the cores are catalogued, packaged and preserved according to specified requirements.

[0021] Furthermore, during field prospecting operations and production processes, it is necessary to determine the specific location of core drilling based on geological survey results combined with information such as geophysical and geochemical anomalies, so that the location of the drilling can reflect the characteristics of the underground ore body to the greatest extent.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. Through the drilling mechanism, the drilling rig can automatically adjust the flushing water volume during operation to adapt to the different hardness of the drilling target. In this way, when drilling into the mud layer, the drilling rig will automatically reduce the water volume to prevent the mud core from being dispersed due to excessive water volume, thereby ensuring the integrity of the mud core. Conversely, when drilling into the hard rock layer, the drilling rig will automatically increase the water volume to ensure that the cuttings in the borehole are fully flushed, keep the borehole clean, and avoid affecting the core quality and drilling efficiency due to insufficient water. This automatic adjustment function improves the overall performance and reliability of the drilling operation.

[0024] 2. Through the connection mechanism, the corer and the drill rod can be quickly connected, thus solving the inconvenience and potential problems of the traditional threaded connection method in operation, simplifying the assembly process of the corer and the drill rod, and eliminating the need to fix one end and rotate the other end, thereby improving the efficiency of on-site operations. Since there is no need for tedious rotation operations, it is particularly suitable for long drill rods and corers, making it easy to connect even under space-constrained conditions, reducing the risk of loosening and falling off due to poor thread engagement, enhancing the stability of the connection, and ensuring the safety of drilling operations.

[0025] 3. Through the setting of the fixing mechanism, the drilling rig can avoid the problem of fixing the core specimens during the drilling process. The fixing mechanism can provide sufficient support force to prevent the core from falling off due to insufficient force during the extraction process. The fixing mechanism limits the movement of the core in the corer, avoiding the core breakage caused by shaking, improving the efficiency and success rate of core extraction, and ensuring the integrity of the core samples and the quality of subsequent analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of the drilling mechanism of the present invention;

[0028] Figure 3 It is an exploded view of the drilling mechanism of the present invention;

[0029] Figure 4 It is a schematic diagram of the internal structure of the drill rod 2 of the present invention;

[0030] Figure 5 It is a schematic diagram of the internal structure of the receiving block of the present invention;

[0031] Figure 6 For the present invention Figure 5 A magnified image of area A;

[0032] Figure 7 It is a schematic diagram of the fixing mechanism structure of the present invention;

[0033] Figure 8It is a schematic diagram of the connection between the support shaft and the slider of the present invention;

[0034] Fig. 9 This is a schematic diagram of the connection between the slider and the drive shaft of the present invention;

[0035] Fig.10 It is a schematic diagram of the water pipe structure of the present invention;

[0036] Fig.11 It is a schematic diagram of the connection between the limit ring and the drill rod of the present invention;

[0037] Fig.12 It is a schematic diagram of the connection between the lifting rod and the sliding groove of the present invention.

[0038] In the figure:

[0039] 1. Drilling machine; 2. Drilling mechanism; 3. Connecting mechanism; 4. Fixing mechanism; 11. Connecting tube; 12. Drill rod 1; 13. Drill bit; 14. Ring groove; 15. Drill rod 2; 16. Stop ring; 17. Down-pressing spring; 18. Stop groove; 19. Hemispherical pin; 110. Coupling shaft; 112. Water pipe; 113. Water inlet; 114. Retaining ring; 115. Pipe sleeve; 116. Closing spring; 21. Receiver block; 22. Through hole; 23 , core barrel; 24, special-shaped groove; 25, positioning ring; 26, built-in spring; 27, pressure block; 28, handle; 29, latch; 210, slot; 211, return spring; 31, blind hole; 32, support shaft; 33, slider; 34, torsion spring; 35, drive shaft; 36, guide groove; 37, baffle; 38, lifting rod; 39, slide groove; 310, lower inclined block; 311, round groove; 312, retaining ring; 313, upper inclined block. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0041] Example 1, reference Figure 1-Figure 12, which is the first embodiment of the present invention, provides a metal ore prospecting and exploration device for outdoor porphyry mining areas, including a drilling rig 1, a drilling mechanism 2 fixedly connected to the front of the drilling rig 1, a connecting mechanism 3 rotatably connected to the inside of the drilling mechanism 2, and a fixing mechanism 4 fixedly connected to the inside of the connecting mechanism 3; the drilling mechanism 2 includes a connecting tube 11 fixedly connected to the bottom of the drilling rig 1, a drill rod 12 meshingly connected to the bottom of the connecting tube 11, a drill bit 13 fixedly connected to the bottom of the drill rod 12, an annular groove 14 provided on the inner wall of the drill rod 12, and a drill rod 12 slidably connected to the inner wall of the annular groove 14. 5, a limit ring 16 fixedly connected to the top of the drill rod 15, a downward pressure spring 17 sleeved on the outer wall of the drill rod 15, the top and bottom of the downward pressure spring 17 respectively abut against the top of the annular groove 14 and the top of the limit ring 16, two limit grooves 18 symmetrically opened on the top of the inner wall of the drill rod 12, two hemispherical pins 19 symmetrically fixedly connected to the top of the outer wall of the drill rod 15, a connecting shaft 110 fixedly connected to the bottom of the connecting tube 11, two water pipes 112 symmetrically fixedly connected to the top of the connecting shaft 110, a plurality of water inlets 113 arranged in an annular array at the bottom of the water pipe 112, and a plurality of water inlets 113 fixedly connected to the water pipe 112 The retaining ring 114 at the top of the outer wall, the pipe sleeve 115 slidably connected to the bottom of the water pipe 112, and the closing spring 116 sleeved on the outer wall of the water pipe 112, the top and bottom of the closing spring 116 are fixedly connected to the bottom of the retaining ring 114 and the top of the pipe sleeve 115 respectively; the connecting mechanism 3 includes a receiving block 21 rotatably connected to the bottom of the connecting shaft 110, a through hole 22 penetrating the top of the receiving block 21, the bottom of the connecting shaft 110 is rotatably connected to the through hole 22, a core barrel 23 clamped on the outside of the connecting block, a special-shaped groove 24 provided inside the receiving block 21, and a fixed A positioning ring 25, an internal spring 26 fixedly connected to the top of the positioning ring 25, the top and bottom of the internal spring 26 are respectively fixedly connected to the top of the special-shaped groove 24 and the top of the positioning ring 25, two pressure blocks 27 symmetrically fixedly connected to both sides of the positioning ring 25, a handle 28 fixedly connected to the top of the pressure block 27, a pin 29 slidably connected to the bottom of the pressure block 27, two slots 210 symmetrically opened on the top of the inner wall of the coring barrel 23, and a return spring 211 fixedly connected to the side of the pin 29 away from the pressure block 27, and the two ends of the return spring 211 are respectively fixedly connected to the pin 29 and the coring barrel 23.

[0042] Specifically, the drilling rig 1 is started to control the drilling mechanism 2 to drill into the point where a hole needs to be drilled. During the drilling process, a water source is connected to the top of the connecting tube 11. After the water flows into the water pipe 112, the water outlet 113 is blocked by the pipe sleeve 115 and cannot enter the gap between the core barrel 23 and the drill rod 15. When the bottom of the drill rod 15 contacts the soil or rock, it will move upward and squeeze the downward pressure spring 17 while moving upward to store force. Since the drill rod 15 is constrained by the hemispherical pin 19 and the limit groove 18, it can only move up and down and will rotate with the drill rod 12. When the drill rod 15 moves upward, the pipe sleeve 115 is lifted. After the pipe sleeve 115 moves upward, it squeezes the closing spring 116 to shrink it, and the upward movement of the pipe sleeve 115 will release the Except for the partial obstruction of the water inlet 113, the water flow can enter the gap between the core barrel 23 and the drill rod 15 through the water inlet 113, and then flow out from the bottom of the drilling mechanism 2 to wash the debris generated by drilling. When drilling the soil layer, the drill rod 15 squeezes the soil under the action of the downward pressure spring 17 to deform it. Therefore, the rising distance of the drill rod 15 is small, which makes the upward movement distance of the pipe sleeve 115 small. The channel formed by the casing and the water inlet 113 is small, and the water flow is small. Therefore, it can prevent the water flow from being too large to disperse the sampled soil core. When drilling to a harder rock layer, due to the high hardness of the rock layer, the drill rod 15 is not easy to be squeezed and deformed by the downward pressure spring 17. Therefore, after being squeezed, the drill rod will move up a greater distance, causing the pipe sleeve 115 to move up more. The obstruction to the water inlet 113 is reduced, so that more water can flow through the water inlet 113. The larger water flow can better cool the drill bit 13 and can wash away the broken rock cuttings to prevent the accumulation of rock cuttings and jamming the drill bit 13. The drilling mechanism 2 enables the drilling rig 1 to automatically adjust the flushing water volume during operation to adapt to different drilling target hardnesses. In this way, when drilling into a mud layer, the drilling rig 1 will automatically reduce the water volume to prevent the mud core from being dispersed due to excessive water volume, thereby ensuring the integrity of the mud core. Conversely, when drilling into a hard rock layer, the drilling rig 1 will automatically increase the water volume to ensure that the rock cuttings in the borehole are fully washed, keep the borehole clean, and avoid affecting the core quality and drilling efficiency due to insufficient water volume. This automatic adjustment function improves the overall performance and reliability of the drilling operation. The drill pipe and the coring barrel 23 are installed by pulling the two handles 28. The handles 28 drive the positioning ring 25 to move upward, and the positioning ring 25 squeezes the internal spring 26. When the positioning ring 25 moves upward, it drives the pressure block 27 to move together. After the pressure block 27 moves, the squeezing of the latch 29 is released. The latch 29 will shrink toward the inside of the receiving block 21 under the action of the reset spring 211. After the latch 29 moves to the inside of the receiving block 21, the receiving block 21 is inserted into the top of the coring barrel 23, and the latch 29 is aligned with the slot 210. Then, the handle 28 is released. The positioning ring 25 will move downward under the action of the internal spring 26 and drive the pressure block 27 to move downward. The pressure block 27 squeezes the latch 29 so that the end of the latch 29 away from the pressure block 27 moves out of the receiving block 21 and is inserted into the slot 210.The receiving block 21 and the slot 210 are fixed, so that the corer and the drill rod can be quickly connected, thereby solving the inconvenience and potential problems in the operation of the traditional threaded connection method, simplifying the assembly process of the corer and the drill rod, and there is no need to fix one end and rotate the other end, which improves the efficiency of field operations. Since there is no need to perform cumbersome rotation operations, it is particularly suitable for long drill rods and corers, so that they can be easily connected even under space-constrained conditions, reducing the risk of loosening and falling off due to poor thread engagement, enhancing the stability of the connection, and ensuring the safety of drilling operations.

[0043] Reference Figure 5 The fixing mechanism 4 includes a blind hole 31 provided at the bottom of the connecting shaft 110, two support shafts 32 symmetrically fixedly connected to the bottom of the blind hole 31, a slider 33 rotatably connected to the outside of the support shaft 32, a torsion spring 34 fixedly connected to the inside of the slider 33, the two ends of the torsion spring 34 are respectively fixedly connected to the support shaft 32 and the slider 33, a driving shaft 35 slidably connected to the inner wall of the blind hole 31, two guide grooves 36 symmetrically provided on the outer wall of the driving shaft 35, the outer side of the slider 33 is slidably connected to the inner wall of the guide groove 36, and is fixedly connected to the A baffle 37 at the bottom of the driving shaft 35, two lifting rods 38 symmetrically fixedly connected on both sides of the baffle 37, two sliding grooves 39 symmetrically opened on the inner wall of the core barrel 23, the lifting rod 38 is slidably connected to the sliding grooves 39, three linear arrays are fixedly connected to the lower inclined block 310 on the side of the lifting rod 38 away from the sliding grooves 39, three linear arrays are opened on the inner wall of the core barrel 23. A clamping ring 312 is clamped on the inner wall of the circular groove 311, and two upper inclined blocks 313 symmetrically fixedly connected on both sides of the clamping ring 312.

[0044] Specifically, under the action of the torsion spring 34, the tip of the slider 33 maintains a downward rotation trend. By rotating the connecting shaft 110 toward the tip of the slider 33, the tip of the slider 33 will be inserted into the guide groove 36 after rotating a certain angle, and the driving shaft 35 will be moved upward by squeezing the inner wall of the guide groove 36. The driving shaft 35 moves upward while driving the baffle 37 to move upward. The baffle 37 drives the lower inclined block 310 to move upward through the lifting rod 38. After the lower inclined block 310 moves upward, it squeezes the upper inclined block 313. After the upper inclined block 313 is stressed, it squeezes the retaining ring 312. The retaining ring 312 is deformed and shrinks inwardly under the stress, and fixes the core after shrinking. The fixing mechanism 4 can provide sufficient supporting force to prevent the core from falling off due to insufficient force during the extraction process. The fixing mechanism 4 limits the movement of the core in the core drill, avoids the core breakage caused by shaking, improves the efficiency and success rate of core extraction, and ensures the integrity of the core sample and the quality of subsequent analysis.

[0045] Reference Fig.10 A circle of annular protrusions is provided at the bottom of the water pipe 112 , and the diameter of the annular protrusions is larger than the inner diameter of the retaining ring 114 .

[0046] Specifically, the annular protrusion at the bottom of the water pipe 112 can block the pipe sleeve 115 to prevent the pipe sleeve 115 from falling off the water pipe 112 .

[0047] Example 2, reference Fig.12 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that the diameter of the baffle 37 matches the inner diameter of the core barrel 23, and the length of the slide groove 39 is greater than the length of the lifting rod 38.

[0048] Specifically, the baffle 37 can slide inside the core barrel 23, and the slide groove 39 can accommodate the moving rod to slide inside.

[0049] Reference Figure 8 The support shaft 32 has a T-shaped shape, and a T-shaped hole is provided on one side of the slider 33 close to the driving shaft 35 .

[0050] Specifically, the shape of the support shaft 32 matches the T-shaped hole of the slider 33 , and the support shaft 32 can constrain the freedom of movement of the slider 33 .

[0051] Reference Figure 3 The top of the inner wall of the drill rod 12 is provided with a thread, and the bottom of the connecting tube 11 is provided with a thread engaged with the drill rod 12.

[0052] Specifically, the drill rod 12 is connected to the connecting tube 11 through a thread on the top, and the outer diameter of the connecting tube 11 is the same as that of the drill rod 12.

[0053] Reference Figure 4 The shape of the connecting shaft 110 is an I-shape, and the shape of the through hole 22 matches the bottom of the connecting shaft 110 .

[0054] Specifically, the connecting cylinder 11 is connected to the receiving block 21 via the connecting shaft 110 , and the through hole 22 can accommodate the bottom of the connecting shaft 110 to rotate inside.

[0055] Reference Figure 7 The outer shape of the snap ring 312 is C-shaped, and the opening directions of the three snap rings 312 are different.

[0056] Specifically, the shape of the clamping ring 312 can adapt to the deformation after being stressed, and the opening angles in three different directions are 120°, ensuring that the core is evenly stressed after being clamped.

[0057] Example 3, reference Figure 1-Figure 12 , which is the third embodiment of the present invention, provides: a method for prospecting and exploring metal ore in a field porphyry mining area, comprising the following steps:

[0058] S1, first, move the drill 1 to a predetermined drilling position, move the drill bit 13 downward, and then adjust the vertical angle between the drill bit 13 and the ground to find the accurate drilling angle.

[0059] S2, then, gradually replace the drill bits 13 of different diameters, perform layered drilling, and inject water to flush the borehole during the process until the designed hole depth is reached. During the drilling process, core sampling should be carried out continuously, and the corer with sufficient length should be taken out. During the drilling process, flushing fluid is used to cool the drill bit 13, carry rock powder and maintain the stability of the hole wall, and the core is taken out using a core sampler.

[0060] S3. Finally, the cores are catalogued, packaged and stored according to the specified requirements, and bumps and damages to the cores are avoided during handling.

[0061] S4. During field prospecting and production, it is necessary to determine the specific location of core drilling based on geological survey results combined with geophysical and geochemical anomalies information, so that the drilling location can reflect the characteristics of the underground ore body to the greatest extent, and assist mineral development by using different prospecting technologies.

[0062] In summary, the working principle of the present invention is as follows: the drilling rig 1 is moved to a suitable position, and the drill bit 13 is aligned with the drilling point, the drill bit 13 is controlled to rotate, and the drill bit 13 is drilled into the ground. The drill bit 13 and the drill rod 1 12 drive the drill rod 2 15 to rotate together during the rotation process. The bottom of the drill rod 2 15 will move upward after contacting the rock or soil, and squeeze the downward pressure spring 17 while moving. The higher the hardness of the material contacted by the bottom of the drill rod 2 15, the more it can resist the force of the downward pressure spring 17 to press the drill rod 2 15 downward. Therefore, the higher the height of the drill rod 2 15 will rise, the higher the rise of the drill rod 2 15 will drive the drill rod 2 15 to rise. The pipe sleeve 115 rises, and the rise of the pipe sleeve 115 will remove part of the obstruction to the water outlet 113. The higher the height of the pipe sleeve 115 rises, the smaller the obstruction to the water outlet 113 is, and the greater the water flow that can pass through the water outlet 113 is. The top of the connecting tube 11 is connected to the water source, and the water flows into the gap between the drill rod 15 and the coring tube 23 through the water outlet 113, and flows out from the bottom of the drill bit 13 into the borehole, thereby washing the debris generated by drilling. After the coring is completed, the connecting tube 11 is rotated in the opposite direction of the drilling, and the connecting tube 11 drives the connecting shaft 110 to rotate, and the connecting shaft 110 drives the support shaft 32 to rotate When the support shaft 32 rotates, the slider 33 is driven to move together. Under the action of the torsion spring 34, the tip of the slider 33 will rotate downward with the support shaft 32 as the center. When the slider 33 rotates to the top of the guide groove 36, the tip of the slider 33 will be inserted into the guide groove 36 under the action of the torsion spring 34, and the drive shaft 35 is moved upward by squeezing the guide groove 36. When the drive shaft 35 moves upward, the baffle 37 is driven upward by the lifting rod 38. The baffle 37 drives the lower inclined block 310 to move upward. After the lower inclined block 310 moves upward, it squeezes the upper inclined block 313. The upper inclined block 313 squeezes the clamping ring 312, and the slider 33 The coupling 110 is deformed by force and bends inward, thereby fixing the core. After the coupling 110 is reversed again, the fixation of the core can be released. After the coring is completed, the drill rod 12 is removed from the connecting tube 11, and then the handle 28 is moved upward. The handle 28 drives the positioning ring 25 to move upward, and the positioning ring 25 drives the pressure block 27 to move upward. The upward movement of the pressure block 27 releases the squeezing of the latch 29. The latch 29 will retract into the receiving block 21 under the action of the reset spring 211, thereby releasing the fixation of the receiving block 21 and the coring tube 23. After the receiving block 21 is taken out from the coring tube 23, the core in the coring tube 23 can be poured out.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for prospecting and exploring metal ores in a porphyry mining area in the field, comprising a drilling machine (1), characterized in that: It also includes a drilling mechanism (2) arranged at the front of the drilling machine (1), a connecting mechanism (3) arranged inside the drilling mechanism (2), and a fixing mechanism (4) arranged inside the connecting mechanism (3); The drilling mechanism (2) comprises a connecting tube (11) arranged at the bottom of the drilling machine (1), a drill rod (12) arranged at the bottom of the connecting tube (11), a drill bit (13) arranged at the bottom of the drill rod (12), an annular groove (14) provided on the inner wall of the drill rod (12), a drill rod (15) provided on the inner wall of the annular groove (14), a limiting ring (16) provided on the top of the drill rod (15), and a downward pressure spring (17) sleeved on the outer wall of the drill rod (15), the top and bottom of the downward pressure spring (17) respectively abutting against the top of the annular groove (14) and the top of the limiting ring (16), and two limiting grooves (17) symmetrically provided on the top of the inner wall of the drill rod (12) 18), two hemispherical pins (19) symmetrically arranged at the top of the outer wall of the drill rod (15), a connecting shaft (110) arranged at the bottom of the connecting tube (11), two water pipes (112) symmetrically arranged at the top of the connecting shaft (110), a plurality of water inlets (113) arranged in an annular array at the bottom of the water pipe (112), a retaining ring (114) arranged at the top of the outer wall of the water pipe (112), a pipe sleeve (115) sleeved at the bottom of the water pipe (112), and a closing spring (116) sleeved at the outer wall of the water pipe (112), the top and bottom of the closing spring (116) being fixedly connected to the bottom of the retaining ring (114) and the top of the pipe sleeve (115) respectively; The connecting mechanism (3) comprises a receiving block (21) arranged at the bottom of the connecting shaft (110), a through hole (22) extending through the top of the receiving block (21), the bottom of the connecting shaft (110) being rotatably connected to the through hole (22), a core-taking cylinder (23) arranged at the outside of the connecting block, a special-shaped groove (24) arranged inside the receiving block (21), a positioning ring (25) arranged on the inner wall of the special-shaped groove (24), an internal spring (26) arranged at the top of the positioning ring (25), the top and bottom of the internal spring (26) respectively being in contact with the special-shaped groove. The top of the core-taking barrel (23) is fixedly connected to the top of the core-taking barrel (23), two pressure blocks (27) are symmetrically arranged on both sides of the positioning ring (25), a handle (28) is arranged on the top of the pressure block (27), a latch (29) is arranged on the bottom of the pressure block (27), two slots (210) are symmetrically opened on the top of the inner wall of the core-taking barrel (23), and a return spring (211) is arranged on the side of the latch (29) away from the pressure block (27), and the two ends of the return spring (211) are fixedly connected to the latch (29) and the core-taking barrel (23).

2. The metal ore prospecting and exploration device for outdoor porphyry mining areas according to claim 1 is characterized in that: The fixing mechanism (4) comprises a blind hole (31) provided at the bottom of the connecting shaft (110), two support shafts (32) symmetrically arranged at the bottom of the blind hole (31), a slider (33) arranged at the outside of the support shaft (32), a torsion spring (34) arranged at the inside of the slider (33), the two ends of the torsion spring (34) being respectively fixedly connected to the support shaft (32) and the slider (33), a driving shaft (35) arranged at the inner wall of the blind hole (31), two guide grooves (36) symmetrically arranged at the outer wall of the driving shaft (35), the outer side of the slider (33) being slidably connected to the inner wall of the guide groove (36), and a driving shaft (35) arranged at the inner wall of the blind hole (31). A baffle (37) at the bottom of the moving shaft (35), two lifting rods (38) symmetrically arranged on both sides of the baffle (37), two sliding grooves (39) symmetrically opened on the inner wall of the core-taking barrel (23), the lifting rod (38) and the sliding groove (39) are slidably connected, three linear arrays of lower inclined blocks (310) are arranged on the side of the lifting rod (38) away from the sliding groove (39), three linear arrays of circular grooves (311) are opened on the inner wall of the core-taking barrel (23), a retaining ring (312) is arranged on the inner wall of the circular groove (311), and two upper inclined blocks (313) symmetrically arranged on both sides of the retaining ring (312).

3. The metal ore prospecting and exploration device for outdoor porphyry mining areas according to claim 1 is characterized in that: A circle of annular protrusions is provided at the bottom of the water pipe (112), and the diameter of the annular protrusions is larger than the inner diameter of the retaining ring (114).

4. The metal ore prospecting and exploration device for outdoor porphyry mining areas according to claim 2 is characterized in that: The diameter of the baffle (37) matches the inner diameter of the core-taking barrel (23), and the length of the slide groove (39) is greater than the length of the lifting rod (38).

5. The metal ore prospecting and exploration device for outdoor porphyry mining areas according to claim 2 is characterized in that: The support shaft (32) has a T-shaped appearance, and a T-shaped hole is provided on a side of the slider (33) close to the driving shaft (35).

6. The metal ore prospecting and exploration device for outdoor porphyry mining areas according to claim 1 is characterized by: The top of the inner wall of the drill rod 1 (12) is provided with a thread, and the bottom of the connecting tube (11) is provided with a thread meshing with the drill rod 1 (12).

7. The metal ore prospecting and exploration device for outdoor porphyry mining areas according to claim 1 is characterized by: The outer shape of the connecting shaft (110) is an I-shape, and the outer shape of the through hole (22) matches the bottom of the connecting shaft (110).

8. The metal ore prospecting and exploration device for outdoor porphyry mining areas according to claim 2 is characterized by: The outer shape of the clamping ring (312) is C-shaped, and the opening directions of the three clamping rings (312) are different.

9. A method for prospecting and exploring metal ore in a field porphyry mining area, applied to the device for prospecting and exploring metal ore in a field porphyry mining area as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: First, the drilling machine (1) is moved to a predetermined drilling position, and the vertical angle between the drill bit (13) and the ground is adjusted; Then, drill bits (13) of different diameters are gradually replaced to perform layered drilling until the designed hole depth is reached. During the drilling process, core sampling is continuously performed. During the drilling process, flushing fluid is used to cool the drill bit (13), carry rock powder and maintain the stability of the hole wall, and a core sampler is used to take out the core; Finally, the cores are catalogued, packaged and preserved according to specified requirements.

10. The method for prospecting and exploring metal ore in a field porphyry mining area according to claim 9, characterized in that: During field prospecting and production processes, it is necessary to determine the specific location of core drilling based on geological survey results combined with geophysical and geochemical anomaly information so that the drilling location can reflect the characteristics of the underground ore body to the greatest extent.

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