Geothermal well cleaning and sand removal device

Abstract

This invention provides a geothermal drilling cleaning and desanding device. The device includes a support frame; a desanding structure comprising a separation tank, a settling hopper, a compression tank, a discharge gate, an opening and closing rack, a lifting groove, and a striking pin; a stirring structure comprising a mounting platform, a motor, a rotating gear, a rotating cylinder, an external gear, and stirring blades; a piping structure comprising a return pipe, a water pump, a curved pipe, and a pressure network; a rotating structure comprising a transmission sleeve, a cross groove, a cross column, and a connecting rod; a compression structure comprising a lifting sleeve, a reduction gearbox, a lifting column, a lifting guide rail, a sliding column, a compression plate, and a compression chamber; and a discharge structure comprising a slider, a lifting rack, a return spring, a lever, and a rotating spring. The geothermal drilling cleaning and desanding device provided by this invention has the advantage of timely removal of accumulated silt and compressed silt.

Description

Technical Field

[0001] This invention relates to the technical field of geothermal drilling, and more particularly to a geothermal drilling cleaning and sand removal device. Background Technology

[0002] In geothermal drilling projects, drilling mud plays a crucial role, frequently used to clean drill cuttings from the bottom of the well, balance formation fluid pressure, and lubricate and cool drill bits and tools. Therefore, drilling mud is widely used as a vital resource during the drilling process. However, untreated mud cannot clean drill bits; the sand and gravel in the mud not only wears down the drill bit but also causes drilling blockage, reducing drilling speed. Therefore, desanders are typically used to treat the mud and improve its quality.

[0003] A desander is a device that separates impurities from air, water, or wastewater streams. A common type of desander is the cyclone desander. Desanders use centrifugal force to settle sediment to the bottom, while treated water flows out from the top. Sediment at the bottom of the desander is typically discharged at fixed intervals. However, due to variations in drilling depth and the resulting differences in sediment content in the drilling mud, discharging sediment at fixed intervals when the sediment content increases leads to increased sediment accumulation at the bottom of the desander, reducing the space for sediment-water separation and causing incomplete separation. Furthermore, the discharged sediment is usually piled up nearby, but the loose sediment occupies a lot of space and is difficult to transport. Since the sediment still contains a small amount of water, direct piling also wastes some drilling mud resources and causes water loss.

[0004] Therefore, it is necessary to provide a new geothermal well cleaning and desanding device to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a geothermal drilling cleaning and desanding device that can promptly remove accumulated silt and compressed silt.

[0006] The geothermal drilling cleaning and desanding device provided by the present invention includes: a support frame; a desanding structure, wherein the desanding structure is fixedly connected to the top end of the support frame, the desanding structure including a separation tank, a settling hopper, a compression tank, a discharge gate, an opening and closing rack, a lifting groove, and a striking pin; the outer wall of the settling hopper is fixed to the top end of the support frame, the separation tank is fixed to the top end of the settling hopper and the two are internally interconnected, the compression tank is fixed to the bottom surface of the settling hopper, two discharge gates are symmetrically slidably connected to the bottom surface of the compression tank and the two discharge gates abut against each other, the opening and closing rack is provided on the top surface of the discharge gate, two lifting grooves are symmetrically provided on the inner wall of the compression tank, and the striking pin is fixed to the top surface of the lifting groove; and a stirring structure, wherein the stirring... The stirring structure is rotatably connected to the interior of the separation tank. The stirring structure includes a mounting platform, a motor, a rotating gear, a rotating cylinder, an external gear, and stirring blades. The mounting platform is fixed to the top surface of the separation tank, the motor is mounted on the top surface of the mounting platform, the rotating gear is rotatably connected to the interior of the mounting platform, and the motor is rotatably connected to the rotating gear. The upper end of the rotating cylinder is rotatably connected to both the mounting platform and the interior of the separation tank. The external gear is fixed to the outer wall of the rotating cylinder and meshes with the rotating gear. The stirring blades are fixed to the bottom end of the rotating cylinder. A piping structure is also included, communicating with the interior of the separation tank. The piping structure includes a return pipe, a water pump, a curved pipe, and a pressure network. The curved pipe is located inside the compression tank, the bottom end of the return pipe is connected to the top end of the curved pipe, the water pump is installed inside the return pipe, and the pressure network is installed inside the bottom end of the curved pipe; a rotating structure is fixed inside the rotating cylinder, the rotating structure includes a transmission sleeve, a cross groove, a cross post, and a connecting rod, the rotating sleeve is fixed to the lower inner wall of the rotating cylinder, the cross groove is located on the inner wall of the transmission sleeve, the cross post is slidably connected to the transmission sleeve and the cross groove, the top end of the connecting rod is fixed to the bottom end of the cross post, and the connecting rod passes through the stirring blade and is slidably connected to it; a compression structure rotates with the bottom end of the connecting rod. The compression structure includes a lifting sleeve, a reduction gearbox, a lifting column, a lifting guide rail, a sliding column, a compression plate, and a compression chamber. The lifting sleeve is fixed inside the settling hopper. The reduction gearbox is slidably connected inside the lifting sleeve and rotatably connected to the bottom end of the connecting rod. The lifting column is rotatably connected inside the lifting sleeve and rotatably connected to the reduction gearbox. The lifting guide rail is located on the surface of the lifting column. The sliding column is fixed to the bottom end of the inner wall of the lifting sleeve and slidably connected to the inside of the lifting guide rail. The compression plate is fixed to the bottom surface of the lifting column. The compression chamber is located inside the compression tank and slidably connected to the inside of the compression chamber.A feeding structure is slidably connected inside the lifting groove. The feeding structure includes a slider, a lifting rack, a return spring, a lever, and a rotating spring. Two sliders are slidably connected to the interiors of the two lifting grooves, respectively. The top end of the lifting rack is fixed to the side wall of the slider. The top end of the return spring abuts against the top surface of the lifting groove, and the bottom end of the return spring abuts against the top of the slider. The lever is rotatably connected inside the slider and abuts against the compression plate. The rotating spring is installed inside the lever, and the lever abuts against one end of the rotating spring.

[0007] Preferably, both the settling hopper and the compression tank have funnel-shaped internal structures, and their interiors are interconnected.

[0008] Preferably, the sand removal structure further includes an opening and closing gear and a transmission gear. The opening and closing gear is rotatably connected to the inside of the compression tank and meshes with the opening and closing rack. The transmission gear is rotatably connected to the inside of the compression tank and meshes with both the opening and closing gear and the lifting rack. The diameter of the transmission gear is larger than the diameter of the opening and closing gear.

[0009] Preferably, the stirring structure further includes drain outlets and water-gathering blades. The array of several drain outlets extends through the side wall of the rotating cylinder, and several water-gathering blades are correspondingly inclined and fixed to one side of each drain outlet, with the inclination direction of the water-gathering blades opposite to the rotation direction of the rotating cylinder.

[0010] Preferably, the curved tube has a Z-shaped structure, and the bottom end of the curved tube is connected to the bottom side of the compression chamber.

[0011] Preferably, the pipeline structure further includes a drain pipe and a water inlet pipe. The drain pipe passes through the mounting platform and communicates with the interior of the separation tank. The drain pipe is rotatably connected to the top end of the rotating cylinder. The water inlet pipe communicates with the interior of the separation tank tangentially. The top end of the return pipe communicates with the interior of the water inlet pipe.

[0012] Preferably, the rotating structure further includes a connecting plate, a buffer spring, and a pressure plate. The connecting plate is rotatably connected to the bottom end of the rotating cylinder, and the connecting rod passes through the connecting plate and is slidably connected to it. The buffer spring is sleeved on the outside of the connecting rod, and the bottom end of the buffer spring is installed on the top surface of the connecting plate. The pressure plate is installed on the top end of the buffer spring, and the connecting rod passes through the pressure plate and is slidably connected to it.

[0013] Preferably, the process of the lifting column rotating 180 degrees is the process of the sliding column sliding from the lowest end to the highest end of the lifting guide rail, or the process of the sliding column sliding from the highest end to the lowest end of the lifting guide rail, and when the lifting column rotates 360 degrees, the sliding column returns to the starting point of the lifting guide rail.

[0014] Preferably, the feeding structure further includes a chute, a lever, a restoring spring, a limiting rod, a limiting groove, and a baffle. The chute is located on the top surface of the slider, and the striking pin is slidably connected to the inside of the chute. The lever is rotatably connected to the inside of the slider, and the striking pin abuts against the top of the lever. The limiting rod is slidably connected to the inside of the slider, and the side wall of the limiting rod is rotatably connected to the bottom end of the lever. The restoring spring is installed inside the slider, and the top end of the limiting rod abuts against the restoring spring. The limiting groove is located on the side wall of the lever, and the bottom end of the limiting rod is engaged with the limiting groove. The baffle is fixed to the top and bottom surfaces of the slider, and the baffle is slidably connected to the inside of the lifting groove.

[0015] Preferably, the push block has a teardrop shape, and the top surface of the push block is inclined. One side of the bottom end of the limiting rod has an inclined structure, and the bottom end of the limiting rod is engaged with the top surface of the limiting groove.

[0016] Compared with related technologies, the geothermal drilling cleaning and desanding device provided by the present invention has the following beneficial effects:

[0017] This invention provides a geothermal drilling cleaning and desanding device. The device utilizes the rotation of a stirring structure to drive its reciprocating motion, thereby continuously compressing the mud. During this compression process, not only is the mud cake effectively and promptly recovered and removed, but residual water resources within the mud are also recovered and returned to the separation tank for further separation. The entire process requires no manual intervention, is simple and fast, and significantly improves mud treatment efficiency as well as water resource recovery and utilization. This device offers the advantages of timely removal and compression of accumulated mud and sand. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the geothermal drilling cleaning and desanding device provided by the present invention;

[0019] Figure 2 for Figure 1 The diagram shows a frontal view of the overall cross-section of the structure.

[0020] Figure 3 for Figure 2 The enlarged structural diagram of part A is shown below;

[0021] Figure 4 for Figure 3 The enlarged structural diagram of section B is shown below;

[0022] Figure 5 for Figure 2 The diagram shows the cross-section of the rotating cylinder.

[0023] The diagram is labeled as follows: 1. Support frame; 2. Sand removal structure; 21. Separation tank; 22. Settling hopper; 23. Compression tank; 24. Discharge gate; 25. Opening and closing rack; 26. Opening and closing gear; 27. Transmission gear; 28. Lifting trough; 29. ​​Impact pin; 3. Mixing structure; 31. Mounting platform; 32. Motor; 33. Rotating gear; 34. Rotating cylinder; 35. External gear; 36. Drain outlet; 37. Water collecting blade; 38. Mixing blade; 4. Piping structure; 41. Drain pipe; 42. Inlet pipe; 43. Return pipe; 44. Water pump; 45. Curved pipe; 46. Pressure net; 5. Rotating structure; 51. Transmission sleeve; 52. Cross groove; 53. Cross column; 54. Connecting rod; 55. Connecting plate; 56. Buffer spring; 57. Pressure plate; 6. Compression structure; 61. Lifting sleeve; 62. Gearbox. 63. Lifting column, 64. Lifting guide rail, 65. Sliding column, 66. Compression plate, 67. Compression chamber, 7. Discharge structure, 71. Sliding block, 72. Lifting rack, 73. Return spring, 74. Impact groove, 75. Lever, 76. Restoration spring, 77. Limiting rod, 78. Pulley, 79. Rotation spring, 79a. Limiting groove, 79b. Baffle. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the geothermal drilling cleaning and desanding device provided by the present invention; Figure 2 for Figure 1 The diagram shows a frontal view of the overall cross-section of the structure. Figure 3 for Figure 2 The enlarged structural diagram of part A is shown below; Figure 4 for Figure 2 The enlarged structural diagram of section B is shown below; Figure 5 for Figure 2The diagram shows the cross-section of the rotating cylinder. The geothermal drilling cleaning and desanding device includes: a support frame 1; a desanding structure 2, which is fixedly connected to the top of the support frame 1, the desanding structure 2 including a separation tank 21, a settling hopper 22, a compression tank 23, a discharge gate 24, an opening and closing rack 25, a lifting groove 28, and a striking pin 29. The outer wall of the settling hopper 22 is fixed to the top of the support frame 1, the separation tank 21 is fixed to the top of the settling hopper 22 and the two are internally connected, the compression tank 23 is fixed to the bottom surface of the settling hopper 22, the two discharge gates 24 are symmetrically slidably connected to the bottom surface of the compression tank 23 and the two discharge gates 24 abut against each other, the opening and closing rack 25 is provided on the top surface of the discharge gate 24, the two lifting grooves 28 are symmetrically provided on the inner wall of the compression tank 23, and the striking pin 29 is fixed to the top surface of the lifting groove 28; and a stirring structure 3, which is rotatably connected to the inside of the separation tank 21. The system includes a mounting platform 31, a motor 32, a rotating gear 33, a rotating cylinder 34, an external gear 35, and a stirring blade 38. The mounting platform 31 is fixed to the top surface of the separation tank 21. The motor 32 is mounted on the top surface of the mounting platform 31. The rotating gear 33 is rotatably connected to the interior of the mounting platform 31, and the motor 32 is rotatably connected to the rotating gear 33. The upper end of the rotating cylinder 34 is rotatably connected to both the mounting platform 31 and the interior of the separation tank 21. The external gear 35 is fixed to the outer wall of the rotating cylinder 34, and the external gear 35 meshes with the rotating gear 33. The stirring blade 38 is fixed to the bottom end of the rotating cylinder 34. A pipe structure 4 is also included, which is connected to the interior of the separation tank 21. The pipeline structure 4 includes a return pipe 43, a water pump 44, a curved pipe 45, and a pressure network 46. The curved pipe 45 is located inside the compression tank 23. The bottom end of the return pipe 43 is connected to the top end of the curved pipe 45. The water pump 44 is installed inside the return pipe 43, and the pressure network 46 is installed inside the bottom end of the curved pipe 45. The rotating structure 5 is fixed inside the rotating cylinder 34. The rotating structure 5 includes a transmission sleeve 51, a cross groove 52, a cross post 53, and a connecting rod 54. The rotating sleeve is fixed to the lower inner wall of the rotating cylinder 34. The cross groove 52 is located on the inner wall of the transmission sleeve 51. The cross post 53 is slidably connected to the inside of the transmission sleeve 51 and the cross groove 52. The top end of the connecting rod 54 is fixed to the bottom end of the cross post 53, and the connecting rod 54 passes through the stirring blade 38 and is slidably connected to it.Compression structure 6 is rotatably connected to the bottom end of connecting rod 54. Compression structure 6 includes a lifting sleeve 61, a reduction gearbox 62, a lifting column 63, a lifting guide rail 64, a sliding column 65, a compression plate 66, and a compression chamber 67. The lifting sleeve 61 is fixed inside the settling hopper 22. The reduction gearbox 62 is slidably connected to the inside of the lifting sleeve 61 and rotatably connected to the bottom end of connecting rod 54. The lifting column 63 is rotatably connected to the inside of the lifting sleeve 61 and rotatably connected to the reduction gearbox 62. The lifting guide rail 64 is disposed on the surface of the lifting column 63. The sliding column 65 is fixed to the bottom end of the inner wall of the lifting sleeve 61 and slidably connected to the inside of the lifting guide rail 64. The compression plate 66 is fixed to the bottom surface of the lifting column 63. The compression chamber 67 is disposed inside the compression tank 23, and the compression plate 66 is slidably connected to the inside of the compression chamber 67. Discharge structure 7 The feeding structure 7 is slidably connected to the interior of the lifting groove 28. The feeding structure 7 includes a slider 71, a lifting rack 72, a return spring 73, a lever 78, and a rotating spring 79. Two sliders 71 are respectively slidably connected to the interiors of the two lifting grooves 28. The top end of the lifting rack 72 is fixed to the side wall of the slider 71. The top end of the return spring 73 abuts against the top surface of the lifting groove 28, and the bottom end of the return spring 73 abuts against the top of the slider 71. The lever 78 is rotatably connected to the interior of the slider 71 and abuts against the compression plate 66. The rotating spring 79 is installed inside the lever 78, and the lever 78 abuts against one end of the rotating spring 79.

[0026] In the specific implementation process, such as Figure 2 As shown, both the settling hopper 22 and the compression tank 23 have funnel-shaped internal structures, and their interiors are interconnected. The stirring structure 3 agitates the slurry in the separation tank 21 at high speed. Under the action of centrifugal force, the particles spirally accelerate and settle along the inner walls of the separation tank 21 and the settling hopper 22, causing the particles to gather in the compression tank 23. At the same time, the funnel-shaped settling hopper 22 allows the clear liquid to spiral upward and be discharged through the drain pipe 41.

[0027] In the specific implementation process, such as Figure 3As shown, the sand removal structure 2 also includes an opening / closing gear 26 and a transmission gear 27. The opening / closing gear 26 is rotatably connected to the inside of the compression tank 23 and meshes with the opening / closing rack 25. The transmission gear 27 is rotatably connected to the inside of the compression tank 23 and meshes with both the opening / closing gear 26 and the lifting rack 72. The diameter of the transmission gear 27 is larger than the diameter of the opening / closing gear 26. This structure is installed so that the lifting rack 72, through the opening / closing gear 26 and the transmission gear 27, can drive the discharge gate to open and close in an orderly manner, thereby closing the discharge gate and releasing the compressed mud cake.

[0028] In the specific implementation process, such as Figure 2 and Figure 5 As shown, the stirring structure 3 further includes drain outlets 36 and water-gathering blades 37. An array of drain outlets 36 extends through the side wall of the rotating cylinder 34, and several water-gathering blades 37 are correspondingly inclined and fixed to one side of each drain outlet 36, with the inclination direction of the water-gathering blades 37 opposite to the rotation direction of the rotating cylinder 34. The water-gathering blades 37 generate a converging force during the rotation of the rotating cylinder 34, allowing the rising clear liquid to be discharged more quickly through the drain outlets 36.

[0029] In the specific implementation process, such as Figure 2 As shown, the curved pipe 45 has a Z-shaped structure, and the bottom end of the curved pipe 45 is connected to the bottom side of the compression chamber 67. The Z-shaped curved pipe 45 can generate a certain height difference. When the water pump 44 is working, it generates suction. The curved pipe 45 can prevent the sludge in the compression tank 23 from being sucked into the return pipe 43.

[0030] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the pipeline structure 4 also includes a drain pipe 41 and an inlet pipe 42. The drain pipe 41 passes through the mounting platform 31 and communicates with the interior of the separation tank 21. The drain pipe 41 is rotatably connected to the top of the rotating cylinder 34. The inlet pipe 42 communicates tangentially with the interior of the separation tank 21, and the top of the return pipe 43 communicates with the interior of the inlet pipe 42. The drain pipe 41 is used to discharge the clear liquid from the separation tank 21. The inlet pipe 42 is tangentially fixed to the side wall of the separation tank 21, allowing the high-speed water flowing into the separation tank 21 to generate a strong rotational motion. Combined with the stirring structure 3, under the action of centrifugal force, centripetal force, buoyancy, and three-dimensional drag, the low-density water rises and is discharged from the drain outlet 36, while the high-density particles sink and fall into the compression tank 23.

[0031] In the specific implementation process, such as Figure 2As shown, the rotating structure 5 also includes a connecting plate 55, a buffer spring 56, and a pressure plate 57. The connecting plate 55 is rotatably connected to the inside of the bottom end of the rotating cylinder 34, and the connecting rod 54 passes through the connecting plate 55 and is slidably connected to it. The buffer spring 56 is sleeved on the outside of the connecting rod 54, and the bottom end of the buffer spring 56 is installed on the top surface of the connecting plate 55. The pressure plate 57 is installed on the top end of the buffer spring 56, and the connecting rod 54 passes through the pressure plate 57 and is slidably connected to it. This structure is designed to provide buffering and deceleration when the cross column 53 descends to its lowest point, thereby rapidly reducing the speed of the cross column 53 and the connecting rod 54, preventing the bottom end of the cross column 53 from impacting the inner bottom surface of the rotating cylinder, and also protecting the reduction gearbox 62 and the lifting column 63 from impact.

[0032] In the specific implementation process, such as Figure 2 As shown, the process of the lifting column 63 rotating 180 degrees is the process of the sliding column 65 sliding from the lowest end to the highest end of the lifting guide rail 64, or the sliding column 65 sliding from the highest end to the lowest end of the lifting guide rail 64. When the lifting column 63 rotates 360 degrees, the sliding column 65 returns to the starting point of the lifting guide rail 64. By limiting the length and shape of the lifting guide rail 64 on the surface of the lifting column 63, the rising and falling heights of the lifting column 63 are the same, and as the lifting column 63 continues to rotate in the same direction, a repeated up-and-down sliding effect can be achieved, thereby allowing the compression plate 66 to continuously compress the sludge.

[0033] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the feeding structure 7 further includes a ramming groove 74, a lever 75, a restoring spring 76, a limiting rod 77, a limiting groove 79a, and a baffle 79b. The ramming groove 74 is located on the top surface of the slider 71, and the striking pin 29 is slidably connected to the inside of the ramming groove 74. The lever 75 is rotatably connected to the inside of the slider 71, and the striking pin 29 abuts against the top of the lever 75. The limiting rod 77 is slidably connected to the inside of the slider 71, and the side wall of the limiting rod 77 is rotatably connected to the bottom end of the lever 75. The restoring spring 76 is installed inside the slider 71, and the top end of the limiting rod 77 abuts against the restoring spring 76. The limiting groove 79a is located on the side wall of the lever 78, and the bottom end of the limiting rod 77 is engaged with the limiting groove 79a. The baffle 79b is fixed to the top and bottom surfaces of the slider 71, and the baffle 79b is slidably connected to the inside of the lifting groove 28. The above structure is designed so that when the compression plate 66 slides up and down in the compression chamber 67, it can drive the material discharge structure 7 to move, thereby controlling the opening and closing of the material discharge gate 24.

[0034] In the specific implementation process, such as Figure 4 As shown, the lever 78 has a teardrop shape and its top surface is inclined. One side of the bottom of the limiting rod 77 is also inclined, and the bottom end of the limiting rod 77 engages with the top surface of the limiting groove 79a. The engagement of the limiting rod 77 with the limiting groove 79a restricts the rotation of the lever 78. When the compression plate 66 rises, the lever 78 can drive the entire feeding structure 7 to rise.

[0035] The working principle of the geothermal drilling cleaning and desanding device provided by this invention is as follows:

[0036] When an external power source is connected, the motor 32 is started, driving the rotating gear 33 to rotate within the mounting platform 31. This, in turn, drives the rotating cylinder 34 to rotate via the external gear 35. The rotating cylinder 34 then drives the stirring blades 38 and the water-collecting blades 37 to rotate. The slurry enters the separation tank 21 at high speed through the inlet pipe 42, rotating rapidly along the inner wall of the separation tank 21. Combined with the high-speed agitation of the stirring blades 38, under the influence of centrifugal force, centripetal force, buoyancy, and three-dimensional drag, the less dense clear liquid rises. When it reaches the area around the water-collecting blades 37, the centripetal force generated by the high-speed rotation of the water-collecting blades 37 causes the clear liquid to accelerate and converge into the drain outlet 36. From there, it enters the rotating cylinder 34 and is discharged through the drain pipe 41. Meanwhile, the denser particles spirally and rapidly settle along the inner walls of the separation tank 21 and the settling hopper 22, ultimately converging into the compression tank 23. When the rotating cylinder 34 rotates, it drives the transmission sleeve 51 to rotate. The transmission sleeve 51 engages with the cross post 53 via the cross groove 52. The transmission sleeve 51 drives the connecting rod 54 to rotate via the cross post 53. Simultaneously, the bottom surface of the connecting plate 55 rotates relative to the inner bottom surface of the rotating cylinder 34, and the bottom end of the connecting rod 54 rotates relative to the reduction gearbox 62. The reduction gearbox 62 slows down the lifting column 63, causing it to rotate slowly within the lifting sleeve 61. The lifting column 63 drives the lifting guide rail 64 to rotate, causing the sliding column 65 to slide relative to it within the lifting guide rail 64, thereby raising the lifting column 63. The lifting column 63 rotates while sliding upwards (according to the appendix). Figure 2(The position and direction are the same below), so the lifting column 63 simultaneously drives the reduction gearbox 62 and the compression plate 66 to slide upward. The reduction gearbox 62 drives the cross column 53 to slide upward through the connecting rod 54. The cross column 53 slides in the transmission sleeve 51 and the cross groove 52. When the lifting column 63 rotates 180 degrees, the sliding column 65 slides from the highest point to the lowest point of the lifting guide rail 64, and the reduction gearbox 62 slides to the top of the inside of the holy sword sleeve. The cross column 53 rises to its maximum limit, and the bottom surface of the cross column 53 no longer touches the top surface of the pressure plate 57. The buffer spring 56 springs back. The spring returns to its original position, lifting the pressure plate 57. The pressure plate 57 slides upward along the connecting rod 54. During this process, the lifting column 63 drives the compression plate 66 at its bottom end to slide upward from the compression chamber 67. At the same time, the top edge of the compression plate 66 abuts against the lever 78. Since the limiting rod 77 is inserted into the limiting groove 79a on the side wall of the lever 78, the lever 78 cannot rotate. Therefore, the compression plate 66 drives the slider 71 to slide in the lifting groove 28 through the lever 78. The slider 71 compresses the return spring 73, and at the same time drives the baffle 79b and the lifting rack 72 respectively. As the slide upwards, the baffle 79b always covers the lifting groove 28, preventing the mud and sludge in the compression chamber 67 from entering the lifting groove 28. The lifting rack 72 rises and drives the opening and closing gear 26 to rotate via the transmission gear 27. The opening and closing gear 26 drives the discharge gate 24 to slide via the opening and closing rack 25. The two discharge gates 24 slide relative to each other, allowing the bottom of the compression chamber 67 to communicate with the outside, and the compressed mud and sludge cake falls out. When the slider 71 slides to the top of the lifting groove 28, the impact pin 29 inserts into the impact groove 74, and the bottom end of the impact pin 29 pushes the top end of the lever 75 downwards, causing the lever 75 to rotate. The bottom end of the lever 75 pushes the limiting rod 77 to slide, compressing the restoring spring 76 while its bottom end slides out of the limiting groove 79a. The lever 78 can rotate freely. At this time, the compression plate 66 continues to slide upwards, pushing the lever 78. Rotating upwards to the inside of the slider 71, the rotation spring 79 is compressed, and then the compression plate 66 separates from the lever 78. The rotation spring 79 returns to its original position, causing the lever 78 to rotate back. When the limiting groove 79a returns to its initial position, the limiting rod 77 loses the contact of the side wall of the lever 78. The restoring spring 76 returns to its original position, pushing the limiting rod 77 back into the limiting groove 79a, causing the lever 78 to lock again. During the sliding process, the limiting rod 77 rotates through a rotatable connection with the bottom end of the lever 75, causing the lever 75 to return to its original position.Simultaneously, the reset spring 73 resets, pushing the slider 71 downwards. The slider 71 causes the baffle 79b and the lifting rack 72 to slide downwards, and the impact pin 29 slides out of the impact groove 74. The baffle 79b slides inside the compression tank 23. At the same time, the lifting rack 72 drives the opening and closing gear 26 to rotate in the opposite direction through the transmission gear 27. The opening and closing gear 26 drives the discharge gate 24 to reset through the opening and closing rack 25. Finally, the slider 71 returns to the bottom of the lifting groove 28, and the discharge gate 24 closes again. Subsequently, the compression plate 66 detaches from the compression chamber 67. The sludge that has gathered at the bottom of the settling hopper 22 enters the compression chamber 67 through the gap between the compression plate 66 and the top of the compression chamber 67. The rotating structure 5 continues to drive the lifting column 63 to rotate in the manner described above. The sliding column 65 begins to slide from the bottom end to the top end along the lifting guide rail 64. The lifting column 63 drives the reduction gearbox 62 and the compression plate 66 to slide downwards. The reduction gearbox 62 drives the cross column 53 to slide downwards within the transmission sleeve 51 and the cross groove 52 via the connecting rod 54. When the bottom end of the cross column 53 abuts against the pressure plate 57, the pressure plate 57 follows the cross column 53 downwards. The buffer spring 56 contracts, providing buffering and deceleration for the cross column 53, thereby rapidly reducing the speed of the cross column 53 and the connecting rod 54. This prevents the bottom end of the cross column 53 from impacting the inner bottom surface of the rotating cylinder 34, and also reduces the speed of the reduction gearbox 62 and the lifting column 63, preventing them from being impacted. The compression plate 66 slides downwards, re-enters the compression chamber 67, and seals the top of the compression chamber 67 to prevent other sludge from entering the compression chamber 67. The compression plate 66 presses down on the mud below, increasing its density and simultaneously expelling excess water. The expelled water passes through the pressure net 46 and enters the curved pipe 45. The water pump 44 starts, generating suction to guide the water in the curved pipe 45 into the inlet pipe 42 through the return pipe 43, where it is separated again. When the compression plate 66 slides to the bottom of the lifting groove 28, its sidewall impacts the lever 78. Due to the special structure of the bottom end of the limiting rod 77 and the limiting groove 79a, the lever 78 cannot be prevented from rotating downwards. Therefore, when the compression plate 66 touches the lever 78 downwards, the lever 78 rotates downwards and enters the slider 71. The rotation spring 79 is compressed, and the bottom end of the limiting rod 77 slides out of the limiting groove 79a, compressing the restoring spring 76.When the compression plate 66 passes the lever 78, the rotation spring 79 resets, causing the lever 78 to rotate out of the slider 71. When the limiting groove 79a returns to its initial position, the limiting rod 77 loses contact with the side wall of the lever 78, the restoring spring 76 resets, and pushes the limiting rod 77 back into the limiting groove 79a. When the sliding column 65 in the lifting sleeve 61 moves to the top of the lifting guide rail 64, the compression plate 66 descends to its maximum extent. At this time, the sludge in the compression chamber 67 is compressed into a mud cake, and the water is fully discharged and enters the curved pipe 45. As the rotating cylinder 34 continues to rotate, the compression structure 6 and the discharge structure 7 continue to reciprocate according to the above process, achieving the purpose of compressing the sludge into a cake, realizing the effect of reducing the volume of sludge and recovering residual water. This device has the advantages of timely removal of accumulated silt and compressed sludge.

[0037] Compared with related technologies, the geothermal drilling cleaning and desanding device provided by the present invention has the following beneficial effects:

[0038] This invention provides a geothermal drilling cleaning and desanding device. The device utilizes the rotation of the stirring structure 3 to drive the reciprocating motion of the stirring structure 6, thereby continuously compressing the mud. During the mud compression process, not only is the mud cake effectively recovered and removed, but the remaining water resources in the mud are also recovered and returned to the separation tank 21 for further separation. The entire process requires no manual intervention, is simple and fast, and greatly improves the efficiency of mud treatment as well as the recovery and utilization rate of water resources. This device has the advantages of timely removal and compression of accumulated mud and sand.

[0039] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A geothermal drilling cleaning and sand removal device, characterized in that, include: Support (1); A sand removal structure (2) is fixedly connected to the top of the support (1). The sand removal structure (2) includes a separation tank (21), a settling hopper (22), a compression tank (23), a discharge gate (24), an opening and closing rack (25), a lifting groove (28), and a striking pin (29). The outer wall of the settling hopper (22) is fixed to the top of the support (1), and the separation tank (21) is fixed to the top of the settling hopper (22). The parts are interconnected. The compression tank (23) is fixed to the bottom surface of the settling hopper (22). The two discharge gates (24) are symmetrically slidably connected to the bottom surface of the compression tank (23) and the two discharge gates (24) abut against each other. The opening and closing rack (25) is provided on the top surface of the discharge gate (24). The two lifting grooves (28) are symmetrically provided on the inner wall of the compression tank (23). The impact pin (29) is fixed to the top surface of the lifting groove (28). A stirring structure (3) is rotatably connected to the interior of the separation tank (21). The stirring structure (3) includes a mounting platform (31), a motor (32), a rotating gear (33), a rotating cylinder (34), an external gear (35), and a stirring blade (38). The mounting platform (31) is fixed to the top surface of the separation tank (21). The motor (32) is mounted on the top surface of the mounting platform (31). The rotating gear (33) is rotatably connected to the interior of the mounting platform (31), and the motor (32) is rotatably connected to the rotating gear (33). The upper end of the rotating cylinder (34) is rotatably connected to the interior of the mounting platform (31) and the separation tank (21), respectively. The external gear (35) is fixed to the outer wall of the rotating cylinder (34), and the external gear (35) is meshed with the rotating gear (33). The stirring blade (38) is fixed to the bottom end of the rotating cylinder (34). The pipeline structure (4) is connected to the interior of the separation tank (21). The pipeline structure (4) includes a return pipe (43), a water pump (44), a curved pipe (45), and a pressure network (46). The curved pipe (45) is located inside the compression tank (23). The bottom end of the return pipe (43) is connected to the top end of the curved pipe (45). The water pump (44) is installed inside the return pipe (43). The pressure network (46) is installed inside the bottom end of the curved pipe (45). Rotating structure (5), the rotating structure (5) is fixed inside the rotating cylinder (34), the rotating structure (5) includes a transmission sleeve (51), a cross groove (52), a cross post (53) and a connecting rod (54), the transmission sleeve (51) is fixed to the lower inner wall of the rotating cylinder (34), the cross groove (52) is provided on the inner wall of the transmission sleeve (51), the cross post (53) is slidably connected to the inside of the transmission sleeve (51) and the cross groove (52), the top end of the connecting rod (54) is fixed to the bottom end of the cross post (53), and the connecting rod (54) passes through the stirring blade (38) and is slidably connected to it; A compression structure (6) is rotatably connected to the bottom end of the connecting rod (54). The compression structure (6) includes a lifting sleeve (61), a reduction gearbox (62), a lifting column (63), a lifting guide rail (64), a sliding column (65), a compression plate (66), and a compression chamber (67). The lifting sleeve (61) is fixed inside the settling hopper (22). The reduction gearbox (62) is slidably connected inside the lifting sleeve (61), and the reduction gearbox (62) is rotatably connected to the bottom end of the connecting rod (54). The lifting column (63) is rotatably connected to the bottom end of the connecting rod (54). The lifting sleeve (61) is connected to the inside of the lifting column (63), and the lifting column (63) is rotatably connected to the reduction gearbox (62). The lifting guide rail (64) is provided on the surface of the lifting column (63). The sliding column (65) is fixed to the bottom end of the inner wall of the lifting sleeve (61), and the sliding column (65) is slidably connected to the inside of the lifting guide rail (64). The compression plate (66) is fixed to the bottom surface of the lifting column (63). The compression chamber (67) is provided inside the compression tank (23), and the compression plate (66) is slidably connected to the inside of the compression chamber (67). The feeding structure (7) is slidably connected to the inside of the lifting groove (28). The feeding structure (7) includes a slider (71), a lifting rack (72), a return spring (73), a lever (78), and a rotating spring (79). The two sliders (71) are respectively slidably connected to the inside of the two lifting grooves (28). The top end of the lifting rack (72) is fixed to the side wall of the slider (71). The top end of the return spring (73) abuts against the top surface of the lifting groove (28), and the bottom end of the return spring (73) abuts against the top of the slider (71). The lever (78) is rotatably connected to the inside of the slider (71), and the lever (78) abuts against the compression plate (66). The rotating spring (79) is installed inside the lever (78), and the lever (78) abuts against one end of the rotating spring (79).

2. The geothermal drilling cleaning and desanding device according to claim 1, characterized in that, The interior of both the settling hopper (22) and the compression tank (23) is a funnel-shaped structure, and the interiors of the two are interconnected.

3. The geothermal drilling cleaning and desanding device according to claim 1, characterized in that, The sand removal structure (2) further includes an opening and closing gear (26) and a transmission gear (27). The opening and closing gear (26) is rotatably connected to the inside of the compression tank (23), and the opening and closing gear (26) is meshed with the opening and closing rack (25). The transmission gear (27) is rotatably connected to the inside of the compression tank (23), and the transmission gear (27) is meshed with the opening and closing gear (26) and the lifting rack (72) respectively. The diameter of the transmission gear (27) is larger than the diameter of the opening and closing gear (26).

4. The geothermal drilling cleaning and desanding device according to claim 1, characterized in that, The stirring structure (3) further includes a drain outlet (36) and a water-gathering blade (37). An array of several drain outlets (36) penetrates the side wall of the rotating cylinder (34). Several water-gathering blades (37) are correspondingly tilted and fixed to one side of each drain outlet (36), and the tilting direction of the water-gathering blades (37) is opposite to the rotation direction of the rotating cylinder (34).

5. The geothermal drilling cleaning and desanding device according to claim 1, characterized in that, The curved tube (45) has a Z-shaped structure, and the bottom end of the curved tube (45) is connected to the bottom side of the compression chamber (67).

6. The geothermal drilling cleaning and desanding device according to claim 1, characterized in that, The pipeline structure (4) also includes a drain pipe (41) and an inlet pipe (42). The drain pipe (41) passes through the mounting platform (31) and communicates with the interior of the separation tank (21). The drain pipe (41) is rotatably connected to the top of the rotating cylinder (34). The inlet pipe (42) is tangentially connected to the interior of the separation tank (21). The top of the return pipe (43) is connected to the interior of the inlet pipe (42).

7. The geothermal drilling cleaning and desanding device according to claim 1, characterized in that, The rotating structure (5) further includes a connecting plate (55), a buffer spring (56), and a pressure plate (57). The connecting plate (55) is rotatably connected to the bottom of the rotating cylinder (34), and the connecting rod (54) passes through the connecting plate (55) and is slidably connected to it. The buffer spring (56) is sleeved on the outside of the connecting rod (54), and the bottom end of the buffer spring (56) is installed on the top surface of the connecting plate (55). The pressure plate (57) is installed on the top end of the buffer spring (56), and the connecting rod (54) passes through the pressure plate (57) and is slidably connected to it.

8. The geothermal drilling cleaning and desanding device according to claim 1, characterized in that, The process of the lifting column (63) rotating 180 degrees is the process of the sliding column (65) sliding from the lowest end to the highest end of the lifting guide rail (64), or the sliding column (65) sliding from the highest end to the lowest end of the lifting guide rail (64). When the lifting column (63) rotates 360 degrees, the sliding column (65) returns to the starting point of the lifting guide rail (64).

9. The geothermal drilling cleaning and desanding device according to claim 1, characterized in that, The feeding structure (7) further includes a ram groove (74), a lever (75), a restoring spring (76), a limiting rod (77), a limiting groove (79a), and a baffle (79b). The ram groove (74) is located on the top surface of the slider (71), and the striking pin (29) is slidably connected to the inside of the ram groove (74). The lever (75) is rotatably connected to the inside of the slider (71), and the striking pin (29) abuts against the top of the lever (75). The limiting rod (77) is slidably connected to the inside of the slider (71), and the limiting rod (79b) is rotatably connected to the inside of the slider (71). The side wall of the positioning rod (77) is rotatably connected to the bottom end of the lever (75). The restoring spring (76) is installed inside the slider (71), and the top end of the limiting rod (77) abuts against the restoring spring (76). The limiting groove (79a) is provided on the side wall of the lever (78), and the bottom end of the limiting rod (77) is engaged with the limiting groove (79a). The baffle (79b) is fixed to the top and bottom surfaces of the slider (71) respectively, and the baffle (79b) is slidably connected to the inside of the lifting groove (28).

10. The geothermal drilling cleaning and desanding device according to claim 9, characterized in that, The push block (78) has a teardrop shape and the top surface of the push block (78) is inclined. One side of the bottom end of the limiting rod (77) has an inclined structure and the bottom end of the limiting rod (77) is engaged with the top surface of the limiting groove (79a).

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