Cleaning device for rock core

Abstract

The utility model provides a cleaning device for a rock core, which comprises a containing pipe used for forming a rock core movement path, a flushing ring used for flushing the rock core is sleeved on the containing pipe, and the flushing ring is of a hollow structure and used for containing flushing fluid. At least one first through hole communicated with the interior of the flushing ring is formed in the inner wall of the flushing ring, and second through holes communicated with the first through holes are formed in the containing pipe. In this arrangement, an acting force is applied to the rock core such that the rock core moves in the receiving tube. Meanwhile, the flushing ring is opened. Therefore, the rock core in the moving process can be washed. In this way, the technical problems that in the prior art, the working efficiency is low, and the cleaning effect is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of core cleaning, in particular to a cleaning device for cores. Background Art

[0002] In the exploration of oil and gas resources, the observation and analysis of cores are important bases for formation evaluation and oil and gas resource evaluation. Since cores are all carried back to the ground with drilling fluid, drilling fluid contaminants adhere to the surface of the cores. Therefore, to observe the cores, the attached contaminants must be cleaned to restore the true color of the underground rocks.

[0003] At the same time, according to the requirements of standards and specifications, oil-containing cores cannot be washed with a flushing liquid and can only be wiped with a rag. However, cores without oil need to be washed with a flushing liquid and need to be cleaned as soon as possible to avoid long-term immersion of the drilling fluid.

[0004] The existing methods for processing cores mainly involve manual wiping with water or flushing with a faucet by workers. Although cores that meet the observation conditions can be obtained by this method, the work efficiency is low and the cleaning effect is poor. Summary of the Utility Model

[0005] To overcome at least one or more of the above-mentioned defects in the prior art, the utility model provides a cleaning device for cores, including a receiving tube for forming a movement path of the core, and a flushing ring sleeved on the receiving tube for flushing the core.

[0006] Wherein, the flushing ring is arranged in a hollow structure for containing a flushing liquid, at least one first through hole communicating with the inside of the flushing ring is arranged on the inner wall of the flushing ring, and a second through hole communicating with the first through hole is arranged on the receiving tube.

[0007] In one embodiment, a scrubbing ring for scrubbing the core is further sleeved on the receiving tube. The scrubbing ring is arranged in a hollow structure for containing a scrubbing liquid. At least one third through hole communicating with the inside of the scrubbing ring is arranged on the inner wall of the scrubbing ring. A scrubbing layer is further arranged on the inner wall of the scrubbing ring, and the scrubbing layer extends into the inside of the receiving tube for receiving the scrubbing liquid and scrubbing the core.

[0008] In one embodiment, a first liquid inlet joint communicating with the inside of the flushing ring is arranged on the flushing ring. The first liquid inlet joint is configured to be selectively connected to a first liquid delivery device. A second liquid inlet joint communicating with the inside of the scrubbing ring is arranged on the scrubbing ring. The second liquid inlet joint is configured to be selectively connected to a second liquid delivery device.

[0009] In one embodiment, a liquid discharge hole is provided on the receiving tube, and the liquid discharge hole penetrates through the wall surface of the receiving tube and communicates with the receiving tube.

[0010] In one embodiment, a drying ring is further sleeved on the receiving tube. The drying ring is closer to the outlet end of the core relative to the flushing ring and / or the scrubbing ring. An air inlet joint communicating with the inside of the drying cup is provided on the drying ring. The air inlet joint is configured to be selectively connected to an air inlet device. At least one exhaust hole communicating with the inside of the drying ring is formed on the inner wall of the drying ring. An air inlet hole communicating with the exhaust hole is provided on the receiving tube.

[0011] In one embodiment, the device further includes an operating table for placing the receiving tube. On the operating table, slideways are respectively provided at both ends of the receiving tube. The slideways are configured to have an arc structure with a curvature greater than that of the core, for receiving the part of the core outside the receiving tube and guiding the movement of the core.

[0012] In one embodiment, the device further includes a driving mechanism provided on the operating table and close to the inlet end of the core, for pushing the core to move along the inner wall of the receiving tube.

[0013] In one embodiment, the driving mechanism includes an electric push rod and a top plate provided at the free end of the electric push rod. The surface area of the top plate is configured to be larger than the surface area of the free end of the electric push rod, for reducing the pressure generated by the driving mechanism on the core.

[0014] In one embodiment, at least a pair of support seat plates are provided on the lower surface of the operating table. The device further includes an adjusting mechanism movably connected to the support seat plates, for adjusting the spatial position of the operating table.

[0015] In one embodiment, the support seat plate includes at least one fixing hole for connecting to the operating table and a rotating shaft for movably connecting to the adjusting mechanism. The adjusting mechanism includes two support legs respectively connected to the rotating shaft. The two support legs intersect and are hinged together.

[0016] Generally speaking, compared with the prior art by the above technical solutions conceived by the present utility model, at least the following beneficial effects can be achieved:

[0017] In the present utility model, a receiving tube for forming a movement path of the core is provided, and a flushing ring is sleeved on the receiving tube. Among them, the flushing ring is arranged in a hollow structure for accommodating the flushing liquid, and the flushing ring is communicated with the receiving tube, so as to flush the core located in the receiving tube. In this setting method, a force is applied to the core to make the core move in the receiving tube. At the same time, the flushing ring is opened. Thus, the core can be flushed during the movement process. In this way, the technical problems of low working efficiency and poor cleaning effect in the prior art are solved. Brief Description of the Drawings

[0018] The embodiments of the present utility model will be described in detail below with reference to the drawings. In the drawings:

[0019] Figure 1 Schematically shows the overall structure of the cleaning device for the core according to the present utility model;

[0020] Figure 2 Schematically shows the overall structure of the support plate of the cleaning device for the core according to the present utility model.

[0021] It should be noted that the drawings are not necessarily drawn to actual scale.

[0022] In all the drawings, the same reference numerals represent the same technical features. Specifically: 100 - cleaning device for the core; 1 - cleaning assembly; 11 - receiving tube; 112 - drain hole; 12 - flushing ring; 121 - first liquid inlet joint; 13 - scrubbing ring; 131 - second liquid inlet joint; 14 - drying ring; 141 - air inlet joint; 2 - operating table; 21 - slideway; 22 - support plate; 221 - fixing hole; 222 - rotating shaft; 23 - handle; 3 - adjusting mechanism; 31 - support leg; 32 - connecting rib; 321 - wire bowl; 322 - threaded rod; 323 - handle; 33 - walking wheel; 4 - driving mechanism; 41 - top plate. Detailed Embodiment

[0023] In order to better understand the purpose, structure and function of the present utility model, the following further detailed description of a cleaning device for the core according to the present utility model will be given with reference to the drawings.

[0024] For convenience, the direction along the extension of the receiving tube is referred to as "axial direction", "transverse direction" or similar terms, and the direction perpendicular to the "axial direction" is referred to as "vertical direction", "longitudinal direction" or similar terms.

[0025] Such as Figure 1As shown in the figure, an embodiment of the present utility model provides a cleaning device 100 for a core, which includes a cleaning component 1 for cleaning the core, an operating table 2 disposed below the cleaning component 1 for receiving the cleaning component 1, and an adjusting mechanism 3 connected to the operating table 2 for moving the operating table 2 so that the operating table 2 can carry the cleaning component 1 to move together. In this way, the device 100 can be directed to move to the position of the core according to the position of the core, so as to clean the core. Thus, the convenience of the device is increased.

[0026] In one embodiment, as Figure 1 shown, the cleaning component 1 includes a hollow receiving tube 11, and the receiving tube 11 is arranged in any structure convenient for receiving the core. In this embodiment, the receiving tube 11 is arranged in a circular tubular shape. At the same time, the inner diameter of the receiving tube 11 is set to be larger than the diameter of the core. In this setting method, the core can be placed in the receiving tube 11 and move along the path formed by the inner wall of the receiving tube 11.

[0027] Among them, as Figure 1 shown, a flushing ring 12 is arranged around the receiving tube 11 on the receiving tube 11. The flushing ring 12 is arranged in a hollow structure for storing the flushing liquid for flushing the core. In addition, at least one first through hole (not shown in the figure) for communicating with the inside of the flushing ring 12 is formed on the inner wall of the flushing ring 12.

[0028] At the same time, a second through hole (not shown in the figure) corresponding to the first through hole is arranged on the receiving tube 11. The first through hole and the second through hole are communicated with each other for jointly forming a passage for the movement of the flushing liquid. In this setting method, the flushing liquid located in the flushing ring 12 can move along the first through hole and the second through hole into the receiving tube 11, so as to flush the core located in the receiving tube 11.

[0029] In one embodiment, as Figure 1 shown, a first liquid inlet joint 121 for communicating with the inside of the flushing ring 12 is further arranged on the flushing ring 12. The first liquid inlet joint 121 is configured to be selectively connected to a first liquid delivery device (not shown in the figure) storing the flushing liquid. In this way, the flushing liquid can continuously enter the flushing ring 12 and continuously flow to the core along the first through hole and the second through hole to flush the core. At the same time, the pressure of the flushing liquid can also be adjusted by adjusting the flow rate of the flushing liquid input by the first liquid delivery device. In this setting method, the pressure exerted by the flushing liquid on the core can be adjusted according to the needs of flushing.

[0030] According to a preferred embodiment of the present utility model, a guiding head (not shown in the figure) is further provided at the end of the first through hole, and the free end of the guiding head extends obliquely towards the center of the flushing ring 12. In this way, the guiding head can guide the flushing liquid flowing out of the first through hole, so that the flushing liquid moves obliquely along the guiding head, thereby cleaning around the core. In this way, the flushing of the core can be more thorough.

[0031] In one embodiment, as Figure 1 shown, a scrubbing ring 13 is further provided around the receiving tube 11. The scrubbing ring 13 is arranged in a hollow ring structure for containing a scrubbing liquid for scrubbing the core. In addition, at least one third through hole (not shown in the figure) for communicating with the inside of the scrubbing ring 13 is formed on the inner wall of the scrubbing ring 13, and the third through hole is used to form a channel for the movement of the scrubbing liquid.

[0032] At the same time, on the inner wall of the scrubbing ring 13, a scrubbing layer for scrubbing the core is further provided along the inner wall of the scrubbing ring 13. The scrubbing layer extends inwards along the circumferential direction into the inside of the receiving tube 11 and is used to abut against the core located in the receiving tube 11, so as to scrub the core during movement. Specifically, the receiving tube 11 is arranged in a split structure. In this embodiment, the receiving tube 11 is arranged in two sections, and the two sections of the receiving tube 11 are connected to each other through the scrubbing ring 13, and the scrubbing layer on the inner wall of the scrubbing ring 13 extends circumferentially into the receiving tube 11.

[0033] In this way, the scrubbing liquid located in the scrubbing ring 13 can move along the third through hole and contact the scrubbing layer, thereby infiltrating the scrubbing layer. Thus, the core is scrubbed by the scrubbing layer.

[0034] In one embodiment, as Figure 1 shown, a second liquid inlet joint 131 for communicating with the inside of the scrubbing ring 13 is further provided on the scrubbing ring 13. The second liquid inlet joint 131 is configured to be selectively communicated with a second liquid delivery device (not shown in the figure) storing the scrubbing liquid. In this way, the scrubbing liquid can continuously enter the scrubbing ring 13, continuously move along the third through hole to the scrubbing layer, infiltrate the scrubbing layer, and thus scrub the core. At the same time, the pressure of the scrubbing liquid can also be adjusted by adjusting the flow rate of the scrubbing liquid input by the second liquid delivery device. In this setting mode, the pressure exerted by the scrubbing liquid on the core can be adjusted according to the needs of scrubbing.

[0035] In one embodiment, as Figure 1As shown, a hollow drying ring 14 is arranged around the receiving tube 11 on the receiving tube 11. An air inlet joint 141 communicating with the inside of the drying ring 14 is arranged on the drying ring 14. The air inlet joint 141 is configured to be selectively connected to an air inlet device (not shown in the figure). In addition, at least one exhaust hole (not shown in the figure) communicating with the inside of the drying ring 14 is formed in the inner wall of the drying ring 14.

[0036] Meanwhile, an air inlet hole (not shown in the figure) corresponding to the exhaust hole is arranged on the receiving tube 11, and the exhaust hole communicates with the air inlet hole. In this way, the air flow entering the drying ring 14 along the air inlet device can enter the receiving tube 11 along the exhaust hole and the air inlet hole, and dry the core located in the receiving tube 11. Moreover, the drying rate of the drying ring 14 can be adjusted by adjusting the flow rate of the air flow input by the air inlet device.

[0037] In this setting mode, during use, the core is placed in the receiving tube 11, and an axial force is applied to the core so that the core can move along the path formed by the receiving tube 11. During this process, the first liquid infusion device (not shown in the figure) or the second liquid infusion device (not shown in the figure) can be selectively turned on. At this time, as the core continues to move, the flushing ring 12 or the scrubbing ring 13 will continuously flush or scrub the core. Then, the air inlet device (not shown in the figure) is turned on. As the core continues to move along the axial direction, the drying ring 14 communicating with the air inlet device will continuously dry the core. Thus, the flushing or scrubbing work of the core is completed, and a dry core is obtained. In this way, the technical problems of low working efficiency and poor cleaning effect in the prior art are solved.

[0038] In one embodiment, at least one pulley (not shown in the figure) is arranged on the inner wall of the receiving tube 11, and the pulley is used to support the core. In this setting mode, when the core moves in the receiving tube 11, the sliding friction between the core and the receiving tube 11 can be changed into rolling friction by the pulley. In this way, the resistance of the core moving on the inner wall of the receiving tube 11 can be reduced, so that the core can stably move along the path formed by the receiving tube 11.

[0039] According to a preferred embodiment of the present utility model, the second through holes are provided in several numbers and arranged overlappingly along the inner wall of the receiving tube 11. Specifically, the several second through holes can partition the receiving tube 11, and the partitioned receiving tubes 11 are sleeved together with each other through the flushing ring 12. Thus, a first gap can be formed between the partitioned receiving tubes 11. In this setting manner, the first through holes on the flushing ring 12 can communicate with the first gap, so that the flushing liquid in the flushing ring 12 can move along the first gap. Thus, the core can be flushed in a manner surrounding the core, making the flushing of the core more uniform.

[0040] According to a preferred embodiment of the present utility model, the receiving tubes 11 located in the drying ring 14 are also arranged in a partitioned structure, and the partitioned receiving tubes 11 are sleeved together with each other at intervals through the drying ring 14. In this way, a second gap is formed on the receiving tubes 11 located in the drying ring 14. In this setting manner, the exhaust holes on the drying ring 14 will communicate with the second gap, so that the gas in the drying ring 14 can dry the core in the receiving tube 11 circumferentially along the second gap. In this way, the efficiency of drying the core can be improved. In this setting manner, the receiving tube 11 can be formed into four sections, and each section is sleeved together through the flushing ring 12, the scrubbing ring 13, and the drying ring 14 respectively.

[0041] In one embodiment, as Figure 1 shown, a drain hole 112 is provided at a position on the receiving tube 11 close to the operation table 2, and the drain hole 112 penetrates through the inner wall of the receiving tube 11 for communicating with the receiving tube 11. In this way, when flushing the core, the waste liquid generated during the flushing process can be discharged to the outside along the drain hole 112. Thus, the accumulation of waste liquid in the receiving tube 11 is avoided, and secondary pollution to the washed core is prevented.

[0042] According to a preferred embodiment of the present utility model, as Figure 1 shown, the flushing ring 12, the scrubbing ring 13, and the drying ring 14 are arranged in sequence on the receiving tube 11. And the core can move from the end close to the flushing ring 12 towards the drying ring 14. During this process, the core can be dried after being flushed or scrubbed. Thus, a dry core is obtained.

[0043] In one embodiment, as Figure 1As shown, the device 100 further includes a driving mechanism 4 for driving the core to move along the axial direction. The driving device is arranged on the operation table 2 and is close to the flushing ring 12. In this setting mode, the driving mechanism 4 can push the core from the flushing ring 12 to the drying ring 14. During this process, the core can be flushed or scrubbed and dried. The driving mechanism 4 is set as any device that can achieve reciprocating motion along the axis. In this embodiment, the driving mechanism 4 is set as an electric push rod. It should be noted that the electric push rod is a well-known structure to those skilled in the art. Therefore, it will not be elaborated here.

[0044] According to a preferred embodiment of the present invention, as Figure 1 shown, a top plate 41 is further arranged at the free end of the driving mechanism 4. The top plate 41 is configured to have a surface area larger than that of the free end of the driving mechanism 4 and is used to contact the core. In this setting mode, the pressure generated by the driving mechanism 4 on the core can be reduced, avoiding damage to the core, so that the core can stably move from the flushing ring 12 to the drying ring 14.

[0045] In this setting mode, during use, the core is placed in the receiving tube 11, and the side wall of the core is in contact with a pulley (not shown in the figure). At the same time, the end of the core is in contact with the top plate 41. Then, the driving mechanism 4 is started, so that the driving mechanism 4 moves along the axial direction. During this process, the driving mechanism 4 can push the core to move along the path formed by the receiving tube 11, and by the core being in contact with the pulley, the sliding friction between the core and the receiving tube 11 is converted into rolling friction, thereby reducing the frictional force.

[0046] During the continuous movement of the core, the first infusion device (not shown in the figure) or the second infusion device (not shown in the figure) can be selectively turned on. At this time, the flushing ring 12 or the scrubbing ring 13 will continuously flush or scrub the core during its axial movement. Then, the air intake device (not shown in the figure) is turned on. As the core continuously moves along the axial direction, the drying ring 14 connected to the air intake device will continuously dry the core. Thus, the flushing or scrubbing work of the core is completed, and a dry core is obtained. In this way, the technical problems of low working efficiency and poor cleaning effect in the prior art are solved.

[0047] According to a preferred embodiment of the present invention, as Figure 1 shown, on the operation table 2, slideways 21 are further arranged at both ends of the receiving tube 11. The slideways 21 are configured as arc-shaped structures for receiving the part of the core outside the receiving tube 11. In this way, the contact area between the core and the slideways 21 can be increased, thereby guiding the movement of the core.

[0048] In one embodiment, Figure 1 As shown, a support plate 22 is also provided on the lower surface of the operating table 2, and the adjustment mechanism 3 is provided below the operating table 2 and connected to the support plate 22 to adjust the height of the operating table 2. Figure 2 As shown, the support plate 22 includes a fixing hole 221 for connecting with the operating table 2, and a rotating shaft 222 arranged on the support plate 22 for connecting with the adjustment structure 3. Preferably, the support plates 22 are arranged in four and are respectively located at the edge of the operating table 2 and are arranged in pairs.

[0049] At the same time, if Figure 1 As shown, the adjustment mechanism 3 includes support legs 31 respectively connected to the rotating shaft 222, and the support legs 31 and the rotating shaft 222 are movably connected. The support legs 31 on both sides of the operating table 2 are hinged to each other. In this way, when the lateral distance formed by the two support legs 31 on one side is reduced, the longitudinal distance formed by the two support legs 31 can be increased. In this way, the operating table 2 can be raised.

[0050] In addition, when the operating platform 2 needs to be lowered, the lateral distance between the two support legs 31 is increased, thereby reducing the longitudinal distance formed by the two support legs 31. In this way, the operating platform 2 can be lowered. In this setting mode, the lifting and lowering adjustment of the operating platform 2 can be completed by adjusting the lateral distance between the two support legs 31 hinged together. It should be noted that when the support legs 31 hinged together on one side are adjusted, the support legs hinged together on the other side will also move synchronously.

[0051] In one embodiment, Figure 1 As shown, a connecting rib 32 is also provided on the support legs 31 hinged together on one side, and the connecting rib 32 is provided in two, respectively used to flexibly connect the support legs 31 together in the longitudinal direction. A wire bowl 321 is provided on each connecting rib 32, and the two wire bowls 321 are located at the same height, and the wire bowl 321 is provided with an internal thread. At the same time, a threaded rod 322 is inserted into the wire bowl 321, and the threaded rod 322 is inserted into the two wire bowls 321 in the horizontal direction and extends outward. In this way, rotating the threaded rod 322 can drive the connecting rib 32 to move, thereby adjusting the lifting and lowering of the operating table 2.

[0052] According to a preferred embodiment of the present utility model, Figure 1 As shown, a handle 323 is provided on the free end of the threaded rod 322 , and the handle 323 is used to provide a force fulcrum, thereby facilitating application of force to the threaded rod 322 .

[0053] According to a preferred embodiment of the present utility model, as Figure 1 shown, at the free end of each support leg 31, a traveling wheel 33 with a braking function is further provided. In this way, when it is necessary to move the device 100, the device 100 can be pushed to make the traveling wheel 33 rotate, thereby moving the device 100. After moving to a suitable position, the traveling wheel 33 is fixed to stably set the device 100 at the suitable position.

[0054] According to a preferred embodiment of the present utility model, as Figure 1 shown, the device 100 further includes a handle 23 provided on the operation table 2. In this way, when it is necessary to move the device, a force can be applied to the handle 23 to drive the device 100 to move.

[0055] The operation of the core cleaning device 100 according to the present utility model is as follows.

[0056] First, apply a force to the handle 23 so that the handle 23 transmits the force to the operation table 2 and drives the operation table 2 to move. Thus, the device 100 is moved to a suitable position.

[0057] Second, rotate the handle 323 so that the handle 323 drives the connecting rib 32 to move, thereby adjusting the height of the operation table 2. Thus, the device 100 is adjusted to a suitable height.

[0058] Then, place the core into the receiving tube 11, and make the core located in the receiving tube 11 abut against the pulley, and the core located outside the receiving tube 11 is placed on the slideway 21. At the same time, make the end of the core abut against the top plate 41 together. And start the driving mechanism 4 so that the driving mechanism 4 moves along the axial direction. During this process, the driving mechanism 4 can push the core to move along the path formed by the receiving tube 11, and the core abuts against the pulley (not shown in the figure) together to convert the sliding friction between the core and the receiving tube 11 into rolling friction, thereby reducing the friction force.

[0059] During the continuous movement of the core, the first infusion device or the second infusion device can be selectively activated. At this time, the flushing ring 12 or the scrubbing ring 13 will continuously flush or scrub the core during its axial movement. Then, the air inlet device (not shown in the figure) is activated. As the core continuously moves along the axial direction, the drying ring 14 connected to the air inlet device will continuously dry the core. And as the core continues to move, the core will move from the slideway 21 to the outside. Thus, the flushing or scrubbing work of the core is completed, and a dry core is obtained. In this way, the technical problems of low working efficiency and poor cleaning effect in the prior art are solved.

[0060] It can be understood that the present utility model is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A core cleaning device, characterized in that: It comprises a containing tube (11) for forming a core movement path, a flushing ring (12) for flushing the core is sleeved on the containing tube (11), The flushing ring (12) is configured as a hollow structure for containing flushing liquid, and at least one first through hole connected to the interior of the flushing ring (12) is provided on the inner wall of the flushing ring (12), and a second through hole connected to the first through hole is provided on the accommodating tube (11).

2. The core cleaning device according to claim 1, characterized in that: A scrubbing ring (13) for scrubbing the core is also sleeved on the receiving tube (11); the scrubbing ring (13) is configured as a hollow structure for containing scrubbing liquid; at least one third through hole connected to the interior of the scrubbing ring (13) is provided on the inner wall of the scrubbing ring (13); a scrubbing layer is also provided on the inner wall of the scrubbing ring (13); the scrubbing layer extends into the interior of the receiving tube (11) and is configured to receive the scrubbing liquid and scrub the core.

3. The core cleaning device according to claim 2, characterized in that: A first liquid inlet connector (121) is provided on the flushing ring (12) and is communicated with the interior of the flushing ring (12). The first liquid inlet connector (121) is configured to be selectively connected to a first infusion device. A second liquid inlet connector (131) is provided on the scrubbing ring (13) and is communicated with the interior of the scrubbing ring (13). The second liquid inlet connector (131) is configured to be selectively connected to a second infusion device.

4. The core cleaning device according to claim 3, characterized in that: A liquid drainage hole (112) is provided on the containing tube (11), and the liquid drainage hole (112) penetrates the wall surface of the containing tube (11) and is in communication with the containing tube (11).

5. The core cleaning device according to claim 4, characterized in that: A drying ring (14) is also sleeved on the containing tube (11). The drying ring (14) is closer to the outlet end of the core than the flushing ring (12) and / or the scrubbing ring (13). An air inlet joint (141) connected to the interior of the drying ring (14) is provided on the drying ring (14). The air inlet joint (141) is configured to be selectively connected to an air inlet device. At least one exhaust hole for interconnecting with the interior of the drying ring (14) is provided on the inner wall of the drying ring (14). An air inlet hole connected to the exhaust hole is provided on the containing tube (11).

6. The core cleaning device according to any one of claims 1 to 5, characterized in that: The device further comprises an operating table (2) for placing the accommodating tube (11), on which slideways (21) are respectively arranged at both ends of the accommodating tube (11), the slideways (21) being configured as arc-shaped structures having a curvature greater than that of the rock core, and being used to receive the portion of the rock core located outside the accommodating tube (11) and to guide the movement of the rock core.

7. The core cleaning device according to claim 6, characterized in that: The device also includes a driving mechanism (4) disposed on the operating table (2) and close to the inlet end of the core, and used to push the core to move along the inner wall of the containing tube (11).

8. The core cleaning device according to claim 7, characterized in that: The driving mechanism (4) comprises an electric push rod and a top plate (41) arranged at the free end of the electric push rod, wherein the surface area of ​​the top plate (41) is configured to be larger than the surface area of ​​the free end of the electric push rod, and is used to reduce the pressure exerted by the driving mechanism (4) on the rock core.

9. The core cleaning device according to claim 8, characterized in that: At least one pair of support plates (22) is arranged on the lower surface of the operating table (2), and the device further comprises an adjustment mechanism (3) movably connected to the support plates (22) and used for adjusting the spatial position of the operating table (2).

10. The core cleaning device according to claim 9, characterized in that: The support plate (22) comprises at least one fixing hole (221) for connecting to the operating table (2), and a rotating shaft (222) for movably connecting to the adjustment mechanism (3); the adjustment mechanism (3) comprises two supporting legs (31) respectively connected to the rotating shaft (222); the two supporting legs (31) intersect and are hinged together.

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