High-efficiency high-precision dry-wet integrated rotary division device and method

Abstract

The invention relates to the technical field of mineral exploration, and discloses an efficient and high-precision dry-wet integrated rotary division device and method.The efficient and high-precision dry-wet integrated rotary division device comprises a separation chamber, a rotational flow mechanism is arranged at the top of the separation chamber and used for separating heavy particles and fine particles, a first settling chamber is arranged below the separation chamber, and a second settling chamber is arranged below the separation chamber and used for separating the fine particles from the heavy particles; the first settling chamber has a settling effect, the bottoms of the separation chamber and the first settling chamber are both provided with standing sample storage mechanisms, and the standing sample storage mechanisms can temporarily store mineral samples in the separation chamber or the first settling chamber. Through the combination of the rotational flow mechanism, the standing sample storage mechanism and the rotary divider, the division device which is compact in size and integrates solid-liquid separation, dry and wet compatibility, proportion adjustability and on-site rapid analysis is realized, and the continuous sampling requirement of reverse circulation drilling under the dry and water-deficient and water-containing alternate stratum can be met; the division precision and the sample representativeness can be guaranteed, and the practicability of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of mineral exploration technology, specifically to a high-efficiency, high-precision dry-wet integrated rotary reducing device and method. Background Technology

[0002] In reverse circulation drilling of complex formations such as deep water-bearing, hard rock, and variable formations, the accuracy of cuttings sample reduction and the representativeness of the samples directly affect the accuracy of subsequent formation analysis.

[0003] On the one hand, directly collecting stratigraphic rock samples can result in large sample volumes and uneven composition. A fraction reduction device can extract a portion proportionally, reducing sample volume while ensuring representativeness. This is particularly important in alternating dry and wet strata where rock fragment properties vary greatly (dry sections contain more dust, wet sections more mud), and fraction reduction avoids sampling bias. The reduced, representative samples can be directly fed into a rapid on-site analysis system, enabling immediate determination of ore grade and boundaries, providing real-time data support for drilling operations and prospecting layout.

[0004] On the other hand, reverse circulation drilling often involves water return, resulting in long sample processing times, low reduction accuracy, and poor representativeness. Traditional reduction devices are prone to clogging and proportional distortion under wet sample conditions, and cannot process dry and wet samples in an integrated manner, requiring additional drying or diversion steps, increasing the workload on site. In China, the depth of reverse circulation drilling generally does not exceed 300m, and the representativeness of deep holes and water-bearing formations is poor. It is difficult to balance rapid reduction with on-site testing, which restricts the promotion of kilometer-level reverse circulation drilling technology.

[0005] Existing technologies require alternating equipment to collect mineral samples or interrupt operations when processing dry rock cuttings and cement-containing slurry samples. The same equipment is used to process dry rock cuttings before processing cement-containing slurry samples. Therefore, it does not meet the continuous sampling requirements of reverse circulation drilling in arid and water-scarce strata with alternating water content, and the equipment has low practicality. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a highly efficient and high-precision integrated dry and wet rotary sampling device and method. This solves the problem that existing devices must be used alternately to collect mineral samples or interrupt operations when processing dry rock cuttings and cement-containing slurry samples. Furthermore, the same device must be used to process dry rock cuttings before processing cement-containing slurry samples, which does not meet the continuous sampling requirements of reverse circulation drilling in arid and water-scarce strata.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency, high-precision integrated dry and wet rotary separator, comprising a separation chamber, a swirling mechanism at the top of the separation chamber for separating heavy particles and fine particles, a first settling chamber below the separation chamber for settling, and a static sample storage mechanism at the bottom of both the separation chamber and the first settling chamber for temporarily storing mineral samples inside the separation chamber or the first settling chamber. A second settling chamber is fixedly connected to the bottom of the lower static sample storage mechanism for secondary settling, and a rotary separator is fixedly connected to the bottom of the second settling chamber for separating materials and collecting samples.

[0008] Preferably, the swirling mechanism includes a swirling chamber, the bottom of which is fixedly connected to the top of the separation chamber. An air inlet pipe is fixedly connected to the top of the outer surface of the swirling chamber, and a cover plate is rotatably connected to the top of the air inlet pipe. Multiple clamping plates are fixedly connected to the top of the cover plate. A latch is fixedly connected to the top of the tail of the swirling chamber, and an exhaust pipe is fixedly connected to the top of the cover plate. A hydraulic cylinder is rotatably connected to the top of the outer surface of the separation chamber, and the output end of the hydraulic cylinder is rotatably connected to the top of the cover plate. A ceramic bushing is provided inside the swirling chamber, and the latch engages with the outside of the clamping plates.

[0009] Preferably, the static sample storage mechanism includes two mounting plates, the bottoms of which are fixedly connected to the tops of the first settling chamber and the second settling chamber, respectively. A static sample storage cylinder is fixedly connected to the top of each mounting plate. A closing plate is rotatably connected to the top of the static sample storage cylinder. Through openings are provided on both sides of the static sample storage cylinder. A material passage groove is provided at the bottom of the static sample storage cylinder. Two fixing columns are fixedly connected to the top of each mounting plate. A second hydraulic cylinder is rotatably connected to the top of each fixing column. A connecting cover is fixedly connected to the output end of the second hydraulic cylinder. A rotating shaft is rotatably connected inside the connecting cover. A swing disk is rotatably connected to the outside of the rotating shaft. A motion groove is provided inside the swing disk. Two limiting columns are fixedly connected to the top of each mounting plate. An annular groove is provided on the outer wall of each limiting column.

[0010] Preferably, the rotary separator includes a base, a slag outlet connecting plate fixedly connected to the top of the base, a rotary impeller on the top of the slag outlet connecting plate, a plurality of insertion slots on the outer wall of the rotary impeller, a collection box inside the insertion slots, a slewing bearing outer ring fixedly connected to the top of the rotary impeller, a slewing bearing inner ring rotatably connected inside the slewing bearing outer ring, a protective cover on the top of the slag outlet connecting plate, a top cover fixedly connected to the top of the protective cover, the top of the top cover fixedly connected to the bottom of the second settling chamber, a torque motor fixedly connected to the middle of the base, a turntable bearing inner ring fixedly connected to the bottom of the rotary impeller, a turntable bearing outer ring rotatably connected to the outside of the turntable bearing inner ring, and the outside of the turntable bearing outer ring fixedly connected to the middle of the top of the slag outlet connecting plate.

[0011] Preferably, the stabilizing mechanism includes multiple rotating cylinders, the tops of which are rotatably connected to the outside of the first settling chamber. A buffer spring is installed inside each rotating cylinder, and a movable plug is slidably connected inside each rotating cylinder. Multiple oil passage holes are opened inside the movable plug. A movable rod is fixedly connected to the bottom of the movable plug, and a stabilizing foot is rotatably connected to the bottom of the movable rod. Oil passage pipes are fixedly connected to both the upper and lower sides of each rotating cylinder. A return spring is installed inside each oil passage pipe, and a blocking plate is slidably connected inside the oil passage pipe. Multiple liquid passage holes are opened inside the blocking plate.

[0012] Preferably, the bottom protection mechanism includes a bottom box, a limiting plate is slidably connected inside the bottom box, a connecting column is fixedly connected to the top of the limiting plate, the top of the connecting column is fixedly connected to the bottom of the base, a stress relief spring is provided inside the bottom box, one end of the stress relief spring is fixedly connected to the bottom of the limiting plate, and the bottom of the stress relief spring is fixedly connected to the bottom end inside the bottom box.

[0013] Preferably, the top of the torque motor is fixedly connected to the bottom center of the slag outlet connecting plate, the output end of the torque motor is fixedly connected to the bottom center of the rotating impeller, a pull handle is fixedly connected to the outside of the collection box, a fixed handle is fixedly connected to the outside of the protective cover, multiple observation windows are fixedly connected to the outside of the top cover, and a flip cover is rotatably connected to the end of the observation window away from the top cover.

[0014] Preferably, the top of the upper static sample storage cylinder is fixedly connected to the top of the separation chamber, and the top of the lower static sample storage cylinder is fixedly connected to the bottom of the first settling chamber.

[0015] Preferably, the annular groove is disposed inside the motion groove, and the swing disk is disposed inside the through opening.

[0016] A highly efficient and precise dry-wet integrated rotary reduction method includes the following methods: Dry sample reduction: When the dry sample reduction control system is turned on, the collected rock cuttings are sent into the vortex chamber with the air through the air inlet pipe, and then separated. During the settling period, the closing plates of the upper and lower settling and storage mechanisms cannot be opened at the same time. The lower closing plate must be opened after the upper closing plate is closed to ensure that the rock cuttings between the strata to be tested do not cross and mix.

[0017] Wet fractionation: When the wet fractionation control system is turned on, the collected rock cuttings from the water-bearing strata enter the interior of the vortex chamber along with the liquid through the air inlet pipe, and then flow directly through the static sample storage mechanism with the upper and lower closing plates opening and closing simultaneously into the rotary fractionator. A large amount of water leaks directly from the waste disposal point.

[0018] This invention provides a high-efficiency, high-precision integrated wet and dry rotary reducing device and method. It has the following beneficial effects: 1. This invention combines a vortex mechanism, a static sample storage mechanism, and a rotary divider to create a divider that integrates compact size, solid-liquid separation, dry-wet compatibility, adjustable ratio, and rapid on-site analysis. It can meet the continuous sampling needs of reverse circulation drilling in arid and water-bearing strata, and can ensure the divider accuracy and sample representativeness, thus improving the practicality of the device.

[0019] 2. This invention integrates multiple modules including cyclone separation, sedimentation, mixing, and rotary fractionation. The separation path is top-down and unidirectional, reducing the possibility of residual samples from the previous stage mixing into the next. The first two stages remove most of the liquid, preventing wet mud from directly entering the fractionator and causing blockage or proportional distortion. Subsequently, through a dry and wet control system, the sampling frequency and proportional static storage cylinder can be adjusted to buffer instantaneous large flow impacts, intermittently introducing flowing rock cuttings into the rotary fractionator to ensure uniform flow velocity during the fractionation stage. Therefore, it is suitable for wet, muddy, or rock cuttings flows with large particle size variations. Furthermore, the modular design facilitates the replacement of wear-resistant parts and the cleaning of components, allowing for direct integration with rapid on-site testing and enabling future on-site and intelligent mineral exploration. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the structure of the second settling chamber in this invention; Figure 3 This is a schematic diagram of the swirl mechanism in this invention; Figure 4 This is a schematic diagram of the internal structure of the vortex chamber in this invention; Figure 5 This is a schematic diagram of the static sample storage tube in this invention; Figure 6 This is a schematic diagram of the structure of the oscillating disk in this invention; Figure 7 This is a schematic diagram of the through-hole structure in this invention; Figure 8 This is a schematic diagram of the closed plate in this invention; Figure 9 This is a schematic diagram of the motion groove in this invention; Figure 10 This is a schematic diagram of the structure of the protective cover in this invention; Figure 11 This is a schematic diagram of the observation window structure in this invention; Figure 12 This is a schematic diagram of the structure of the collection box in this invention; Figure 13 This is a schematic diagram of the rotating impeller in this invention; Figure 14 This is a schematic diagram of the structure of the outer ring of the rotating bearing in this invention. Figure 15 This is a schematic diagram of the internal structure of the rotating cylinder in this invention; Figure 16 This is a schematic diagram of the movable plug in this invention; Figure 17 This is a schematic diagram of the internal structure of the oil pipe in this invention; Figure 18 This is a schematic diagram of the internal structure of the bottom box in this invention.

[0021] Among them, 1. Cyclone mechanism; 101. Cyclone chamber; 102. Air inlet pipe; 103. Cover plate; 104. Clamping plate; 105. Lock; 106. Exhaust pipe; 107. Hydraulic cylinder one; 108. Ceramic bushing; 2. Separation chamber; 3. First settling chamber; 4. Second settling chamber; 5. Static sample storage mechanism; 501. Mounting plate; 502. Static sample storage cylinder; 503. Closing plate; 504. Through port; 505. Material passage trough; 506. Fixed column; 507. Hydraulic cylinder two; 508. Connecting cover; 509. Rotating shaft; 510. Swinging plate; 511. Motion trough; 512. Limiting column; 513. Circular groove; 6. Rotary divider; 601. Base; 602. Slag outlet connecting plate; 603. Rotary impeller; 6 04. Insertion slot; 605. Collection box; 606. Outer ring of slewing bearing; 607. Inner ring of slewing bearing; 608. Pull handle; 609. Protective cover; 610. Fixed handle; 611. Top cover; 612. Observation window; 613. Torque motor; 614. Outer ring of turntable bearing; 615. Inner ring of turntable bearing; 7. Vibration motor; 8. Stabilizing mechanism; 801. Rotating cylinder; 802. Buffer spring; 803. Movable plug; 804. Oil passage hole; 805. Movable rod; 806. Stabilizing foot; 807. Oil passage pipe; 808. Return spring; 809. Blocking plate; 810. Fluid passage hole; 9. Bottom protection mechanism; 901. Base box; 902. Limiting plate; 903. Connecting column; 904. Unloading spring. Detailed Implementation

[0022] The technical solutions in 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 embodiments of the present invention, and not all embodiments. 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.

[0023] Please see the appendix Figure 1 -Appendix Figure 18 This invention provides a high-efficiency, high-precision integrated dry and wet rotary separator, including a separation chamber 2. A swirling mechanism 1 is provided at the top of the separation chamber 2 for separating heavy particles and fine particles. A first settling chamber 3 is provided below the separation chamber 2 for settling. A static sample storage mechanism 5 is provided at the bottom of both the separation chamber 2 and the first settling chamber 3 for temporarily storing mineral samples inside the separation chamber 2 or the first settling chamber 3. A second settling chamber 4 is fixedly connected to the bottom of the lower static sample storage mechanism 5 for secondary settling. A rotary separator 6 is fixedly connected to the bottom of the second settling chamber 4 for separating materials and collecting samples.

[0024] The vortex mechanism 1 includes a vortex chamber 101, the bottom of which is fixedly connected to the top of the separation chamber 2. An air inlet pipe 102 is fixedly connected to the outer top of the vortex chamber 101, allowing the rock cuttings mixture returning from the drill rod of the reverse circulation drilling rig to enter the interior of the vortex chamber 101. A cover plate 103 is rotatably connected to the top of the air inlet pipe 102, and multiple clamping plates 104 are fixedly connected to the top of the cover plate 103. A latch 105 is fixedly connected to the tail top of the vortex chamber 101, and the clamping plates 104 and latches 105 cooperate to install the cover plate 103 on top of the vortex chamber 101. An exhaust pipe 106 is fixedly connected to the top of the cover plate 103. A hydraulic cylinder 107 is rotatably connected to the outer top of the separation chamber 2, and the output end of the hydraulic cylinder 107 is rotatably connected to the top of the cover plate 103. The interior of chamber 101 is equipped with a ceramic bushing 108. Rock debris flows downward along the direction of the ceramic bushing 108. Excess water vapor and light dust are discharged through the exhaust pipe 106. The hydraulic cylinder 107 can push the cover plate 103 to rotate and open, so that the ceramic bushing 108 can be easily removed from the interior of the cyclone chamber 101. The latch 105 is engaged with the outside of the clamping plate 104. When the multi-solid mixture to be separated or the liquid containing suspended particles enters the interior of the cyclone chamber 101 through the air inlet pipe 102 at a certain speed, it moves along the detachable ceramic bushing 108 inside the cyclone chamber 101 and rotates in the separation space, generating strong three-dimensional elliptical strong rotational shear turbulence. A downward rotating outer vortex is formed near the side wall, and the gas moves upward. An upward rotating inner vortex is formed at the center of the cyclone chamber 101. The external vortex plays a crucial role in the separation process. Due to the size difference between particles of different masses, the particles are subjected to different magnitudes of centrifugal force, centripetal buoyancy, and fluid drag. The external vortex causes most of the heavy particles to rotate downward along the wall of the cyclone chamber 101 and be collected, and discharged through the bottom outlet of the rotary separator 6. Meanwhile, a small portion of fine particles move upward along the central axis of the cyclone separator and are discharged through the overflow pipe, thereby achieving the purpose of classification and grading.

[0025] The static sample storage mechanism 5 includes two mounting trays 501, which provide installation positions. The bottoms of the two mounting trays 501 are respectively fixedly connected to the tops of the first settling chamber 3 and the second settling chamber 4. A static sample storage cylinder 502 is fixedly connected to the top of the mounting trays 501. The static sample storage cylinder 502 provides installation positions and temporary storage space for materials. A closing plate 503 is rotatably connected to the top of the internal part of the static sample storage cylinder 502. The closing plate 503 can be closed by rotating upwards and opened by rotating downwards. Through openings 504 are provided on both sides of the static sample storage cylinder 502, and a material passage trough 505 is provided at the bottom of the static sample storage cylinder 502. Two fixing columns 506 are fixedly connected to the top of the mounting trays 501. 6. An installation position is provided. A second hydraulic cylinder 507 is rotatably connected to the top of the fixed column 506. A connecting cover 508 is fixedly connected to the output end of the second hydraulic cylinder 507. A rotating shaft 509 is rotatably connected inside the connecting cover 508. A swing disk 510 is rotatably connected to the outside of the rotating shaft 509. The second hydraulic cylinder 507 provides the power to push the swing disk 510. A motion groove 511 is opened inside the swing disk 510. Two limiting posts 512 are fixedly connected to the top of the mounting plate 501. The motion groove 511 cooperates with the limiting posts 512 to prevent motion interference when the swing disk 510 rotates. An annular groove 513 is opened on the outer wall of the limiting post 512 so that the limiting post 512 can be engaged with the motion groove. Inside 511, a supporting force is provided for the swing disk 510. The top of the upper static sample storage cylinder 502 is fixedly connected to the top of the separation chamber 2, and the top of the lower static sample storage cylinder 502 is fixedly connected to the bottom of the first settling chamber 3. The annular groove 513 is located inside the motion groove 511, and the swing disk 510 is located inside the through opening 504. When the second hydraulic cylinder 507 is activated, its output end extends, thereby driving the connecting cover 508 and the rotating shaft 509 to move away from the second hydraulic cylinder 507. Due to the limitation of the motion groove 511 and the annular groove 513, when the output end of the second hydraulic cylinder 507 pushes the connecting cover 508, the swing disk 510 moves away from the second hydraulic cylinder 507. One end of cylinder 7 enters the interior of the static sample storage cylinder 502 through the through-hole 504, thereby squeezing the closing plate 503 and causing the two closing plates 503 to move towards the middle, thus closing the plate 503. When the upper closing plate 503 is closed, the material in the separation chamber 2 will not fall into the first settling chamber 3. When the lower closing plate 503 is closed, the material in the first settling chamber 3 will not fall into the interior of the second settling chamber 4. When the output end of the hydraulic cylinder 2 507 is retracted, it can drive the swing disk 510 to reset, thereby allowing the closing plate 503 to rotate downward and open under the action of gravity, so that the separation chamber 2 and the first settling chamber 3 are connected, and the first settling chamber 3 and the second settling chamber 4 are connected.

[0026] The rotary distributor 6 includes a base 601, which provides an installation position and is equipped with a discharge pipe that can be connected to a pipe or a filter bag. A waste outlet connecting plate 602 is fixedly connected to the top of the base 601. A rotary impeller 603 is mounted on the top of the waste outlet connecting plate 602. Multiple insertion slots 604 are formed on the outer wall of the rotary impeller 603. A collection box 605 is installed inside each insertion slot 604, providing space for the collection box 605. A slewing bearing outer ring 606 is fixedly connected to the top of the rotary impeller 603. The inner ring 607 of the slewing bearing is rotatably connected inside the ring 606. A protective cover 609 is provided on the top of the slag outlet connecting plate 602. A top cover 611 is fixedly connected to the top of the protective cover 609. The top cover 611 provides an installation position. The top of the top cover 611 is fixedly connected to the bottom of the second settling chamber 4. A torque motor 613 is fixedly connected to the middle of the base 601. The inner ring 615 of the turntable bearing is fixedly connected to the bottom of the rotating impeller 603. The outer ring 614 of the turntable bearing is rotatably connected to the outside of the inner ring 615. The inner ring 615 of the turntable bearing and the turntable shaft are connected. The outer ring 614 forms a bearing. The outer ring 614 of the turntable bearing is fixedly connected to the top center of the waste outlet connecting plate 602. A handle 608 is fixedly connected to the outside of the collection box 605. A fixed handle 610 is fixedly connected to the outside of the protective cover 609. Multiple observation windows 612 are fixedly connected to the outside of the top cover 611. The observation windows 612 facilitate observation of the compression of the crushed rock flow through the impeller. A flip cover is rotatably connected to the end of the observation window 612 away from the top cover 611. The top of the torque motor 613 is fixedly connected to the bottom center of the waste outlet connecting plate 602. The output end of the motor 613 is fixedly connected to the bottom center of the rotating impeller 603. After the torque motor 613 is started, it can drive the inner ring 615 of the turntable bearing to rotate, thereby driving the rotating impeller 603 to rotate. When the material in the second settling chamber 4 can be evenly scattered through the cone on the rotating impeller 603, the collection box 605 randomly collects multiple samples, and the remaining particles are directly discharged from the lower outlet pipe, or recycled using a hose and a cloth bag. When sampling, the collection box 605 can be pulled out from the inside of the insertion slot 604 by the pull handle 608.

[0027] The stabilizing mechanism 8 includes multiple rotating cylinders 801, which provide installation positions. The tops of the multiple rotating cylinders 801 are rotatably connected to the outside of the first settling chamber 3. A buffer spring 802 is installed inside each rotating cylinder 801, providing a buffering effect. A movable plug 803 is slidably connected inside each rotating cylinder 801, providing a limiting function. Multiple oil passage holes 804 are opened inside the movable plug 803. Under the action of the liquid inside the rotating cylinder 801, the movable plug 803, in conjunction with the oil passage holes 804, slows down the flow rate of the liquid through the oil passage holes 804, thereby preventing large vibration frequencies or amplitudes. The bottom of the movable plug 803 is fixedly connected to a movable rod 805, which serves as a connection. The bottom of the movable rod 805 is rotatably connected to a stabilizing foot 806, which can be fixedly installed on the ground with bolts. Oil pipes 807 are fixedly connected to both the upper and lower sides of the rotating cylinder 801. Oil pipes 807 provide installation and fluid passage. A return spring 808 is installed inside the oil pipe 807. A blocking plate 809 is slidably connected inside the oil pipe 807. The return spring 808 can drive the blocking plate 809 to reset. Multiple fluid passage holes 810 are opened inside the blocking plate 809, which can allow liquid to pass through.

[0028] The bottom protection mechanism 9 includes a base box 901, which provides an installation position and can contact the ground. A limiting plate 902 is slidably connected inside the base box 901. The limiting plate 902 has a limiting function. A connecting post 903 is fixedly connected to the top of the limiting plate 902. The connecting post 903 has a connecting function. The top of the connecting post 903 is fixedly connected to the bottom of the base 601. A stress relief spring 904 is provided inside the base box 901. The stress relief spring 904 can change the hard contact between the base 601 and the ground into a flexible contact. One end of the stress relief spring 904 is fixedly connected to the bottom of the limiting plate 902, and the bottom of the stress relief spring 904 is fixedly connected to the bottom of the inside of the base box 901.

[0029] A highly efficient and precise dry-wet integrated rotary reduction method includes the following methods: Dry sample reduction: When the dry sample reduction control system is turned on, the collected rock cuttings are sent into the vortex chamber 101 through the air inlet pipe 102 with the air and then separated. When settling, the closing plates 503 of the upper and lower settling and storage mechanisms 5 cannot be opened at the same time. The lower closing plate 503 must be opened after the upper closing plate 503 is closed to ensure that the rock cuttings between the strata to be tested will not be mixed up.

[0030] The rock cuttings mixture returning from the drill pipe of the reverse circulation drilling rig enters through the air inlet pipe 102. The upper and lower closing plates 503 are simultaneously closed, allowing the rock cuttings mixture to swirl fully inside the vortex chamber 101 and undergo its first settling in the separation chamber 2. The upper closing plate 503 is then opened, allowing the rock cuttings mixture to enter the first settling chamber 3 for secondary settling. Subsequently, the upper closing plate 503 is closed, the lower closing plate 503 is opened, and the torque motor 613 in the rotary divider 6 is activated. The rock cuttings mixture after secondary settling then enters the rotary impeller 603 for further reduction and collection.

[0031] Wet fractionation: When the wet fractionation control system is turned on, the collected rock cuttings from the water-bearing strata enter the interior of the vortex chamber 101 through the air inlet pipe 102 along with the liquid, and then flow directly through the static sample storage mechanism 5 with the upper and lower closing plates 503 opening and closing simultaneously into the rotary fractionator 6. A large amount of water is directly lost from the waste disposal point.

[0032] The water-bearing rock cuttings mixture returning from the drill pipe of the reverse circulation drilling rig enters through the air inlet pipe 102. The upper and lower closing plates 503 close simultaneously, allowing the water-bearing rock cuttings mixture to swirl fully in the vortex chamber 101. Excess water vapor is discharged through the top exhaust pipe 106, and the rotary divider 6 is activated. Subsequently, the upper and lower closing plates 503 open simultaneously, allowing the water-bearing rock cuttings mixture to fall directly into the rotating impeller 603 for filtration and collection. The upper closing plate 503 is then closed, and the vortex process begins in the next formation, and so on.

[0033] Working principle: When the multi-solid mixture or liquid containing suspended particles to be separated enters the interior of the cyclone chamber 101 through the inlet pipe 102 at a certain speed, it moves along the detachable ceramic bushing 108 inside the cyclone chamber 101 and rotates in the separation space, generating strong three-dimensional elliptical strong rotational shear turbulence. A downward rotating outer vortex is formed near the side wall, while the gas moves upward. An upward rotating inner vortex is formed at the center of the cyclone chamber 101. The outer vortex plays a crucial role in the separation process. Due to the size difference between particles of different masses, they are subjected to different magnitudes of centrifugal force, centripetal buoyancy, and fluid drag. The outer vortex causes most of the heavy particles to rotate downward along the wall of the cyclone chamber 101 and be collected, and discharged through the bottom outlet of the rotary separator 6. A small portion of fine particles moves upward along the central axis of the cyclone separator and is discharged through the overflow pipe, thereby achieving the purpose of separation and classification. When hydraulic cylinder 507 is activated, its output end extends, causing the connecting cover 508 and rotating shaft 509 to move away from hydraulic cylinder 507. Because the swing disk 510 is limited by the motion groove 511 and annular groove 513, when the output end of hydraulic cylinder 507 pushes the connecting cover 508, the end of the swing disk 510 away from hydraulic cylinder 507 will enter the interior of the stationary sample storage cylinder 502 through the through-hole 504, thereby squeezing the closing plate 503 and causing the two closing plates 503 to move towards the center. This allows the closing plate 503 to close. When the upper closing plate 503 is closed, the material in the separation chamber 2 will not fall into the first settling chamber 3. When the lower closing plate 503 is closed, the material in the first settling chamber 3 will not fall into the interior of the second settling chamber 4. When the output end of the hydraulic cylinder 2 507 is retracted, it can drive the swing disk 510 to reset, thereby allowing the closing plate 503 to rotate downward and open under the action of gravity, so that the separation chamber 2 and the first settling chamber 3 can be connected, and the first settling chamber 3 and the second settling chamber 4 can be connected. After the torque motor 613 is started, it can drive the inner ring 615 of the turntable bearing to rotate, which in turn drives the rotating impeller 603 to rotate. When the material in the second settling chamber 4 can be evenly scattered through the cone on the rotating impeller 603, the collection box 605 randomly collects multiple samples, and the remaining particles are directly discharged from the lower outlet pipe, or recycled using a hose and a cloth bag. When sampling, the collection box 605 can be pulled out from the inside of the insertion slot 604 by the pull handle 608. When the internal structure of the device becomes clogged, the vibration motor 7 is activated. The vibration motor 7 generates vibration, which dislodges the clogged material. Simultaneously, during vibration, the first settling chamber 3 transmits the vibration force to the rotating cylinder 801. The rotating cylinder 801 moves up and down under the vibration. When the rotating cylinder 801 moves downward, it compresses the buffer spring 802, using the spring force to buffer the impact. At the same time, as the rotating cylinder 801 moves downward, the position of the movable plug 803 moves upward relative to the rotating cylinder 801. Since the movable plug 803 has an oil passage hole 804, the liquid inside the rotating cylinder 801 flows through the oil passage hole 804. Due to the limited size of the oil passage hole 804, the flow rate of the liquid inside the rotating cylinder 801 is restricted, thereby reducing the frequency and amplitude of the up-and-down movement of the rotating cylinder 801, and thus slowing down the vibration frequency and amplitude of the device. The amplitude of the movement serves to prevent the device from becoming clogged and also prevents the vibration of the vibrating motor 7 from damaging the internal structure of the device. When liquid is injected into the rotating cylinder 801, the injection pipe is installed inside the oil pipe 807. At this time, the blocking plate 809 moves towards the return spring 808 under the action of liquid pressure. At this time, the liquid passage hole 810 is not blocked by the oil pipe 807, so that the liquid can flow through the liquid passage hole 810 into the oil pipe 807 and then enter the rotating cylinder 801. When the liquid inside the rotating cylinder 801 is released, the blocking plates 809 inside the upper and lower oil pipes 807 are pushed towards the return spring 808. At this time, the liquid will flow out from the lower oil pipe 807. At the same time, since the liquid passage hole 810 in the upper oil pipe 807 is not blocked by the oil pipe 807, the air pressure inside the rotating cylinder 801 and the external air pressure can be balanced, so that the liquid inside the rotating cylinder 801 can flow out smoothly. When the device vibrates, the connecting column 903 is vibrated and moves downward along with the limiting plate 902. The vibration force is buffered by the unloading spring 904, preventing the bottom of the base 601 from directly contacting the ground. This achieves a flexible contact between the base 601 and the ground through the bottom protection mechanism 9, thus preventing the vibration force generated by the vibration motor 7 from directly contacting the ground through the base 601. Therefore, it avoids the reaction force on the ground from damaging the internal structure of the device. Furthermore, due to the effect of the stabilizing mechanism 8, the bottom protection mechanism 9 does not generate high frequency or large amplitude vibrations.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and high-precision dry-wet integrated rotary classification device, comprising a separation chamber (2), characterized in that, The top of the separation chamber (2) is provided with a cyclone mechanism (1) for separating heavy particles and fine particles, the separation chamber (2) is provided below with a first settling chamber (3) having a settling effect, the bottom of the separation chamber (2) and the first settling chamber (3) is provided with a static sample storage mechanism (5), which can temporarily store mineral samples in the separation chamber (2) or the first settling chamber (3), the bottom of the static sample storage mechanism (5) is fixedly connected with a second settling chamber (4), the second settling chamber (4) is used for secondary settling, the bottom of the second settling chamber (4) is fixedly connected with a rotary concentrator (6), the rotary concentrator (6) is used for separating materials and collecting samples, the outside of the first settling chamber (3) is provided with a stabilizing mechanism (8), the bottom of the rotary concentrator (6) is provided with a bottom protection mechanism (9), and the outside of the first settling chamber (3) is fixedly connected with a vibration motor (7).

2. The high-efficiency high-precision dry-wet integrated rotary classification device according to claim 1, characterized in that, The cyclone mechanism (1) comprises a cyclone chamber (101), the bottom of the cyclone chamber (101) is fixedly connected to the top of the separation chamber (2), the outer top end of the cyclone chamber (101) is fixedly connected with an air inlet pipe (102), the top of the air inlet pipe (102) is rotatably connected with a cover plate (103), the top of the cover plate (103) is fixedly connected with a plurality of clamping plates (104), the tail top end of the cyclone chamber (101) is fixedly connected with a lock catch (105), the top of the cover plate (103) is fixedly connected with an air outlet pipe (106), the outer top end of the separation chamber (2) is rotatably connected with an oil cylinder one (107), the output end of the oil cylinder one (107) is rotatably connected to the top of the cover plate (103), the inside of the cyclone chamber (101) is provided with a ceramic bushing (108), and the lock catch (105) is clamped with the outside of the clamping plate (104).

3. The high-efficiency high-precision dry-wet integrated rotary classification device according to claim 1, characterized in that, The standing sample storage mechanism (5) comprises two mounting discs (501), the bottoms of the two mounting discs (501) are fixedly connected to the top of the first settling chamber (3) and the second settling chamber (4) respectively, the top of the mounting disc (501) is fixedly connected with a standing sample storage cylinder (502), the inner top end of the standing sample storage cylinder (502) is rotatably connected with a closing plate (503), the two sides of the standing sample storage cylinder (502) are both provided with a penetrating hole (504), the bottom of the standing sample storage cylinder (502) is provided with a material channel (505), the top of the mounting disc (501) is fixedly connected with two fixed columns (506), the top of the fixed column (506) is rotatably connected with an oil cylinder two (507), the output end of the oil cylinder two (507) is fixedly connected with a connecting cover (508), the inner part of the connecting cover (508) is rotatably connected with a rotating shaft (509), the outer part of the rotating shaft (509) is rotatably connected with a swing disc (510), the inner part of the swing disc (510) is provided with a movement groove (511), the top of the mounting disc (501) is fixedly connected with two limiting columns (512), the outer wall of the limiting column (512) is provided with a ring groove (513).

4. The high-efficiency high-precision dry-wet integrated rotary classification device according to claim 1, characterized in that, The rotating and dividing device (6) comprises a base (601), the top of the base (601) is fixedly connected with a slag discharge port connecting plate (602), the top of the slag discharge port connecting plate (602) is provided with a rotating impeller (603), the outer wall of the rotating impeller (603) is provided with a plurality of insertion grooves (604), the insertion groove (604) is provided with a collection box (605), the top of the rotating impeller (603) is fixedly connected with a slewing ring outer ring (606), the slewing ring outer ring (606) is rotatably connected with a slewing ring inner ring (607), the top of the slag discharge port connecting plate (602) is provided with a protective cover (609), the top of the protective cover (609), the top of the protective cover (609) is fixedly connected with a top cover (611), the top of the top cover (611) is fixedly connected to the bottom of the second settling chamber (4), the middle part of the base (601) is fixedly connected with a torque motor (613), the bottom of the rotating impeller (603) is fixedly connected with a turntable bearing inner ring (615), the outer part of the turntable bearing inner ring (615) is rotatably connected with a turntable bearing outer ring (614), the outer part of the turntable bearing outer ring (614) is fixedly connected to the top end of the middle part of the slag discharge port connecting plate (602).

5. The high-efficiency high-precision dry-wet integrated rotary classification device according to claim 1, characterized in that, The stabilizing mechanism (8) comprises a plurality of rotating cylinders (801), the top of each of the plurality of rotating cylinders (801) is rotationally connected to the outside of the first sedimentation chamber (3), the inside of the rotating cylinder (801) is provided with a buffer spring (802), the inside of the rotating cylinder (801) is slidably connected with a movable plug (803), a plurality of oil holes (804) are formed in the inside of the movable plug (803), the bottom of the movable plug (803) is fixedly connected with a movable rod (805), the bottom of the movable rod (805) is rotationally connected with a stabilizing foot (806), the upper and lower sides of the rotating cylinder (801) are fixedly connected with oil pipes (807), the inside of the oil pipe (807) is provided with a reset spring (808), the inside of the oil pipe (807) is slidably connected with a blocking plate (809), a plurality of liquid holes (810) are formed in the inside of the blocking plate (809).

6. The high-efficiency high-precision dry-wet integrated rotary classification device according to claim 4, characterized in that, The bottom protection mechanism (9) comprises a bottom box (901), the inside of the bottom box (901) is slidably connected with a limiting disc (902), the top of the limiting disc (902) is fixedly connected with a connecting column (903), the top of the connecting column (903) is fixedly connected to the bottom of the base (601), the inside of the bottom box (901) is provided with a force relieving spring (904), one end of the force relieving spring (904) is fixedly connected to the bottom of the limiting disc (902), and the bottom of the force relieving spring (904) is fixedly connected to the inside bottom end of the bottom box (901).

7. The high-efficiency high-precision dry-wet integrated rotary classification device according to claim 4, characterized in that, The top of the torque motor (613) is fixedly connected to the bottom end middle part of the residue discharge port connecting plate (602), the output end of the torque motor (613) is fixedly connected to the bottom end middle part of the rotating pulsator (603), the outside of the collection box (605) is fixedly connected with a pull handle (608), the outside of the protective cover (609) is fixedly connected with a fixed handle (610), the outside of the top cover (611) is fixedly connected with a plurality of observation windows (612), and the end, away from the top cover (611), of the observation window (612) is rotationally connected with a turnover cover.

8. The high-efficiency high-precision dry-wet integrated rotary classification device according to claim 3, characterized in that, The top of the upper static sample storage cylinder (502) is fixedly connected to the top of the separation chamber (2), and the top of the lower static sample storage cylinder (502) is fixedly connected to the bottom of the first sedimentation chamber (3).

9. The high-efficiency high-precision dry-wet integrated rotary classification device according to claim 3, characterized in that, The annular groove (513) is arranged in the inside of the movement groove (511), and the swing disc (510) is arranged in the inside of the through hole (504).

10. The high-efficiency and high-precision dry-wet integrated rotary classification method according to claims 1-9, characterized in that, The method comprises the following steps: Dry division: the dry division control system is started, the collected formation cuttings are sent into the inside of the cyclone chamber (101) through the air inlet pipe (102), and then separated, the closing plates (503) of the upper and lower static sample storage mechanisms (5) cannot be opened at the same time during static storage, the lower closing plate (503) needs to be opened after the upper closing plate (503) is closed, and it is ensured that the formation cuttings to be measured will not be mixed and confused; Wet type division: the wet type division control system is opened, the collected cuttings of the water-bearing formation enter the inside of the cyclone chamber (101) through the air inlet pipe (102) with the liquid, and then directly flow through the static sample storage mechanism (5) with the upper and lower closing plates (503) opened at the same time into the rotating divider (6), and a large amount of water directly leaks from the waste slag place.

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