A device and method for in-hole segmented blasting well cleaning using the drilled casing method.

Abstract

This application relates to a device and method for in-hole segmented blasting well cleaning using a drilled casing method, relating to the field of mine well cleaning. It includes a casing installed in a pass and penetrating the blockage; a container for holding explosives, the diameter of which is smaller than the inner diameter of the casing; a lowering assembly detachably connected to the container, allowing operators to lower the container from above the pass to a predetermined position on the casing; and a support assembly within the container, which secures both the container and the casing. This application effectively reduces adverse effects on operator safety.

Description

Technical Field

[0001] This application relates to the field of mine well cleaning, and in particular to a device and method for well cleaning using a borehole casing method with segmented blasting inside the borehole. Background Technology

[0002] Due to untimely ore discharge, the accumulated slag in the mine has been deposited and compacted for a long time, causing mine blockage. At this time, it is necessary to clear the blocked mine. The common method for clearing the mine is blasting. Blasting is usually carried out by operators underground. The explosive is suspended in a suitable position in the inspection roadway and then detonated, thereby shaking the blockage off. Then, the blockage is blasted upwards in sections, and the dislodged blockage falls down naturally.

[0003] Since operators are working underground, dislodged blockages may adversely affect their personal safety. Summary of the Invention

[0004] In order to reduce the adverse impact on the personal safety of operators, this application provides a device and method for well cleaning by segmented blasting in borehole using the drilling casing method.

[0005] In the first aspect, this application provides a drilling casing method in-hole segmented blasting well cleaning device with the following technical solution:

[0006] A device for in-hole segmented blasting and well cleaning using a drilling casing method includes a casing installed in a well pass and penetrating the blockage, and a container for holding explosives, wherein the diameter of the container is smaller than the inner diameter of the casing.

[0007] The lowering assembly, which is detachably connected to the receiving box, allows the operator to lower the receiving box to a predetermined position on the casing from above the chute.

[0008] A support assembly is installed in the housing box, which works to fix the housing box and the sleeve.

[0009] By adopting the above technical solution, when it is necessary to blast blockages in a well pass, the operator first controls the drilling machine to drill a through hole through the blockage, inserts the casing into the through hole, and supports the through hole with the casing. Then, the operator places the explosive in the receiving box, connects the lowering assembly to the receiving box, and then places the receiving box and the lowering assembly into the casing. The lowering assembly moves the casing to a suitable position at the bottom of the casing. The support assembly is then activated to fix the casing and the receiving box in place. After that, the lowering assembly is disconnected from the receiving box and removed from the casing. Finally, the explosive is detonated remotely, thereby blasting the bottom of the blockage. When the explosive detonates, it destroys the corresponding parts of the receiving box, the support assembly, and the casing. The operator repeats the above operation, blasting the blockage section by section from bottom to top until the well is cleared. Because the operator operates at the top of the well pass, the adverse impact of the blockage on the operator's personal safety is reduced.

[0010] Optionally, the housing includes a top plate, and an inner layer plate with an annular cross-section is fixed to the lower surface of the top plate. A sealing element for sealing the bottom opening of the inner layer plate is detachably connected to the lower end of the inner layer plate.

[0011] By adopting the above technical solution, when it is necessary to contain explosives, the explosives are placed into the inner layer plate through the opening at the bottom of the inner layer plate, and then the bottom of the inner layer plate is sealed by the sealing component.

[0012] Optionally, the sealing element is a sealing block, which is located in the inner layer plate and is threadedly connected to the inner layer plate.

[0013] By adopting the above technical solution, after the explosive is placed in the inner layer plate, the sealing block is screwed into the inner layer plate.

[0014] Optionally, the lowering assembly includes an operating rod with a diameter smaller than the inner diameter of the sleeve. A rectangular cross-section mating plate is fixed to the end of the operating rod, and a mating hole adapted to the mating plate is provided on the top plate, the mating hole penetrating the mating plate.

[0015] By adopting the above technical solution, when it is necessary to lower the receiving box, first align the mating plate with the mating hole, deliver the operating rod and the mating plate into the receiving box, rotate the operating rod and the mating plate, and pull the operating rod outward until the mating plate is pressed against the top plate. At this time, put the receiving box and the operating rod into the sleeve, and deliver the operating rod and the receiving box downward until the receiving box reaches the predetermined position. After the support assembly fixes the receiving box, rotate the operating rod to align the mating plate with the mating hole, then pull the operating rod upward to move the mating plate outside the receiving box, and finally pull the operating rod and the mating plate out of the sleeve.

[0016] Optionally, an outer layer plate is fixed on the lower surface of the top plate and sleeved outside the inner layer plate. There is a gap between the side walls of the outer layer plate and the inner layer plate that are close to each other. A plurality of guide tubes arranged circumferentially along the inner layer plate are connected between the inner layer plate and the outer layer plate. The axis of the guide tubes is perpendicular to the axis of the inner layer plate. The outer layer plate is provided with through holes corresponding to the guide tubes.

[0017] Each of the guide tubes is slidably inserted with a support plate, and the side of the support plate near the inner layer plate is connected to a connecting rod that penetrates the inner layer plate;

[0018] The support assembly also includes a drive component for moving the support plate outward from the outer layer plate, and a fixing component for positioning the support plate.

[0019] By adopting the above technical solution, when the receiving box reaches the predetermined position, the driving component is activated to move the support plate outward along the guide tube until the support plate and the sleeve are pressed together. Then the fixing component works to fix the position of the support plate. The cooperation between the support plate and the sleeve can fix the receiving box and the sleeve.

[0020] Optionally, the driving component includes a hinge rod hinged to one end of the connecting rod located in the inner layer plate, and the support assembly includes a mounting plate slidably inserted into the inner layer plate. The mounting plate is located above the hinge rod, and the hinge rod is hinged to the mounting plate. A plurality of connecting springs are provided between the mounting plate and the top plate. The two ends of the connecting springs are respectively connected to the top plate and the mounting plate. The hinge rod is inclined and gradually tilts from top to bottom towards the edge of the inner layer plate.

[0021] A pull rope is connected to the lower surface of the mounting plate. One end of the pull rope passes through the sealing component and is located outside the receiving box. The driving component also includes a mounting frame set above the chute. A rotating wheel is rotatably connected to the mounting frame, and the pull rope is wound around the rotating wheel.

[0022] By adopting the above technical solution, in the initial state, the connecting spring suspends the mounting plate, so that the lower end of the hinge rod is located at the center of the receiving box. Before lowering the receiving box, the mounting frame is located at the top of the chute. When lowering the receiving box, the pull rope is lowered together with the receiving box, while keeping one end of the pull rope wrapped around the mounting frame. When the receiving box reaches the predetermined position, the rotating wheel is rotated to wind and retract the pull rope. The pull rope drives the mounting plate to move downward. The movement of the mounting plate drives the hinge rod to rotate, so that the lower end of the hinge rod moves to the edge of the inner plate, thereby pushing the connecting rod and the support plate to move outward from the receiving box.

[0023] Optionally, the fastener includes several sliding rods connected to the side wall of the mounting plate. The sliding rods pass through the side wall of the inner layer plate and slide along the axial direction of the inner layer plate. A fixing block is connected to one end of the sliding rod located between the inner layer plate and the outer layer plate. A fixing groove is provided between the inner layer plate and the outer layer plate at a position below the fixing block. The diameter of the fixing groove gradually decreases from top to bottom. The fixing groove is fixed to the inner layer plate and the outer layer plate.

[0024] By adopting the above technical solution, when the mounting plate moves downward, the mounting plate drives the sliding rod and the fixing block to move downward, so that the fixing block is gradually inserted into the fixing groove. When the support plate and the sleeve are pressed together, the fixing block and the fixing groove are interference-fitted, which can fix the position of the mounting plate, thereby fixing the position of the hinge rod, connecting rod and support rod, and keeping the support plate in contact with the sleeve.

[0025] Optionally, a support plate is slidably inserted into the operating lever. The diameter of the support plate is larger than the outer diameter of the sleeve. A distance measuring sensor for measuring the distance between the top plate and the support plate is installed on the lower surface of the support plate. A mounting bracket is installed on the upper surface of the support plate, and a pull rope passes through the support plate.

[0026] By adopting the above technical solution, when in use, the tray is placed on top of the sleeve and the distance sensor is located in the sleeve. When the operating lever is lowered, the distance sensor measures the position of the top plate, so that the operator can know the position of the container more accurately and place the container more precisely.

[0027] Secondly, this application also provides a well-clearing method, which uses the aforementioned well-clearing device to clear the well, including the following steps:

[0028] S1. Operate the drilling machine to drill a through hole through the blockage in the chute, and insert a sleeve into the through hole;

[0029] S2. Place the explosive into the container and seal the inner plate with the sealing device. Insert the mating plate into the mating hole and rotate the operating lever to make the mating plate contact the top plate.

[0030] S3. The receiving box is delivered downwards by the operating lever. The operator knows the position of the receiving box in the sleeve by the distance sensor until the receiving box reaches the bottom of the blockage. After the receiving box reaches the predetermined position, the rotating wheel is rotated to move the support plate to abut against the sleeve. The fixing block is inserted into the fixing groove. The operating lever is rotated and pulled upwards to separate the mating plate from the receiving box. The operating lever is then removed from the sleeve.

[0031] S4, Remote-controlled explosive detonation;

[0032] S5. Repeat the above operation steps S1 to S3, and carry out the blasting treatment section by section upwards until the blockage is completely removed from the well.

[0033] In summary, this application includes at least one of the following beneficial technical effects:

[0034] 1. By incorporating a sleeve, receiving box, lowering assembly, and support assembly, the adverse impact of obstructions on the personal safety of operators is reduced;

[0035] 2. By setting up an operating lever, a mating plate, and a mating hole, the receiving box can be lowered into the sleeve;

[0036] 3. By setting an outer plate, guide tube, support plate, hinge rod, driving component and fixing component, the receiving box and sleeve can be fixed. Attached Figure Description

[0037] Figure 1 This is a cross-sectional view illustrating the positional relationship between the well-drainage device and the well pass in an embodiment of this application.

[0038] Figure 2 This is a cross-sectional view illustrating the structure of the housing and support components in an embodiment of this application.

[0039] Figure 3 This is a cross-sectional view illustrating the structure of the driving component in an embodiment of this application.

[0040] Figure 4 This is a cross-sectional view illustrating the fastener structure in an embodiment of this application.

[0041] Explanation of reference numerals in the attached drawings: 1. Catch; 2. Blockage; 3. Casing; 4. Explosive; 5. Container box; 51. Top plate; 511. Mating hole; 52. Inner plate; 53. Outer plate; 54. Sealing block; 6. Lowering assembly; 61. Operating lever; 62. Mating plate; 63. Distance sensor; 7. Support plate; 8. Support assembly; 81. Support plate; 82. Connecting rod; 83. Guide tube; 84. Drive component; 841. Mounting plate; 842. Connecting spring; 843. Hinge rod; 844. Pull rope; 845. Mounting bracket; 846. Rotary wheel; 85. Fixing component; 851. Slide rod; 852. Fixing block; 853. Fixing groove. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0043] This application discloses an apparatus for in-hole segmented blasting well cleaning using the drilled casing method. (Refer to...) Figure 1 The casing 3 is installed in the blockage 2 of the chute 1, and the axial direction of the casing 3 is set along the length direction of the chute 1; a through hole is opened in the blockage 2 of the chute 1, the casing 3 is installed in the through hole, and both ends of the casing 3 protrude from the blockage 2.

[0044] Reference Figure 1and Figure 2 The well-drilling device also includes a container 5 for holding explosives 4. The container 5 includes a top plate 51. An inner plate 52 and an outer plate 53 are fixedly connected to one end face of the top plate 51. The cross-sections of the inner plate 52 and the outer plate 53 are both annular, and the inner diameter of the outer plate 53 is larger than the outer diameter of the inner plate 52. The outer plate 53 is sleeved outside the inner plate 52. The inner plate 52, the outer plate 53 and the top plate 51 are coaxial. A space is formed between the outer plate 53 and the inner plate 52. The outer diameter of the outer plate 53 and the diameter of the top plate 51 are both smaller than the inner diameter of the casing 3.

[0045] The housing 5 also includes a sealing element for sealing the opening at the bottom of the inner layer plate 52. The sealing element is detachably connected to the inner layer plate 52. In this embodiment, the sealing element is a sealing block 54 disposed in the inner layer plate 52 and threadedly connected to the inner layer plate 52. In other embodiments, the sealing element may also be a film covering the outer layer plate 53. The film is adhered to the outer layer plate 53, thereby sealing the opening at the bottom of the inner layer plate 52.

[0046] Reference Figure 1 and Figure 2 The well cleaning device also includes a lowering assembly 6 for lowering the housing 5 to the expected position inside the casing 3. The lowering assembly 6 includes an operating rod 61, the diameter of which is smaller than the inner diameter of the casing 3. One end of the operating rod 61 is fixedly connected to a mating plate 62 with a rectangular cross-section. The top plate 51 is provided with a mating hole 511 that is adapted to the mating plate 62 at the position of the inner plate 52. The mating hole 511 penetrates the top plate 51.

[0047] Reference Figure 2 and Figure 3 A support plate 7 is slidably inserted into the operating lever 61. The diameter of the support plate 7 is larger than the outer diameter of the casing 3. A ranging sensor 63 is installed on the lower end face of the support plate 7, and the ranging sensor 63 is located above the mating plate 62. When well cleaning is required, the drilling machine is first operated to drill a through hole through the plug 2, and the casing 3 is inserted into the through hole of the plug 2. The operator puts the explosive 4 into the inner layer plate 52 through the lower opening of the inner layer plate 52, and screws the sealing block 54 to the bottom of the inner layer plate 52, so that the explosive 4 can be stored in the receiving box 5.

[0048] Insert the mating plate 62 into the inner layer plate 52 through the mating hole 511, then rotate the mating plate 62 and pull the operating rod 61 outwards towards the receiving box 5 until the mating plate 62 abuts against the top plate 51, completing the connection between the operating rod 61 and the receiving box 5. Place the receiving box 5 into the through hole and place the support plate 7 on top of the sleeve 3, while simultaneously placing the distance sensor 63 in the through hole. Deliver the operating rod 61 to the bottom of the sleeve 3. During this process, the distance sensor 63 measures the distance between the top plate 51 and the support plate 7, enabling the operator to determine the position of the receiving box 5 and thus accurately place the receiving box 5 in the predetermined position.

[0049] Reference Figure 1 and Figure 2 The receiving box 5 is also provided with a support assembly 8 for fixing the receiving box 5 to the sleeve 3. The support assembly 8 includes a plurality of support plates 81 located between the outer layer plate 53 and the inner layer plate 52. The plurality of support plates 81 are evenly distributed along the circumference of the inner layer plate 52. Figure 2 and Figure 4 A connecting rod 82 is vertically fixed to the side wall of the support plate 81 near the inner layer plate 52. The connecting rod 82 passes through the inner layer plate 52 and is slidably inserted into the inner layer plate 52.

[0050] A guide tube 83 corresponding to the support plate 81 is provided between the inner layer plate 52 and the outer layer plate 53. The axis of the guide tube 83 is perpendicular to the axis of the inner layer plate 52. The two ends of the guide tube 83 are fixed to the inner layer plate 52 and the outer layer plate 53 respectively. The outer layer plate 53 has a hole that communicates with the guide tube 83. Each support plate 81 is slidably inserted into the corresponding guide tube 83.

[0051] The support assembly 8 also includes a drive member 84 that drives the support plate 81 to move outward from the receiving box 5. The drive member 84 includes a mounting plate 841 located in the inner layer plate 52. The mounting plate 841 is located at the top of the inner layer plate 52. A connecting spring 842 is fixedly connected to the upper end face of the mounting plate 841. A mating hole 511 is located in the connecting spring 842. The upper end of the connecting spring 842 is fixedly connected to the lower end face of the top plate 51. The connecting spring 842 suspends the mounting plate 841 at the top of the inner layer plate 52.

[0052] The lower end face of the mounting plate 841 is hinged with hinge rods 843 corresponding to the connecting rods 82. The ends of the hinge rods 843 away from the mounting plate 841 are all hinged to the corresponding connecting rods 82. The hinge rods 843 are inclined and gradually tilt from top to bottom towards the edge of the inner layer plate 52. The driving component 84 includes a pull rope 844 fixedly connected to the lower end face of the mounting plate 841. The end of the pull rope 844 away from the mounting plate 841 passes through the sealing block 54 and extends out of the receiving box 5. The upper end face of the tray 7 is fixedly connected with a mounting frame 845. A rotating wheel 846 with a handle is rotatably connected to the mounting frame 845. The end of the pull rope 844 outside the receiving box 5 passes through the tray 7 and is wrapped around the rotating wheel 846.

[0053] The support assembly 8 also includes a fixing member 85 for fixing the position of the mounting plate 841. The fixing member 85 includes a plurality of sliding rods 851 fixedly connected to the side wall of the mounting plate 841. The plurality of sliding rods 851 are distributed circumferentially along the mounting plate 841. Each sliding rod 851 passes through the inner layer plate 52 and is distributed axially along the inner layer plate 52. A fixing block 852 is fixedly connected to one end of the sliding rod 851 located between the inner layer plate 52 and the outer layer plate 53.

[0054] A fixing groove 853 corresponding to the fixing block 852 is provided between the inner layer plate 52 and the outer layer plate 53. The fixing groove 853 is located below the corresponding fixing block 852. Both the inner layer plate 52 and the outer layer plate 53 are fixed to the side wall corresponding to the fixing groove 853. The diameter of the fixing groove 853 gradually decreases from top to bottom. The bottom of the fixing block 852 and the fixing groove 853 are interference fit.

[0055] When clearing the blockage 2 by blasting, the operator clears the blockage section by section from bottom to top. After placing the explosive 4 in the inner plate 52, the operator first threaded the pull rope 844 through the corresponding through hole of the sealing block 54, then twisted the sealing block 54 to seal the bottom of the inner plate 52, and then threaded the pull rope 844 through the corresponding through hole of the support plate 7, so that the end of the pull rope 844 is above the support plate 7, and wrapped the pull rope 844 around the rotating wheel 846. The operator lowered the receiving box 5 and placed it at the bottom of the sleeve 3.

[0056] Once the receiving box 5 reaches the predetermined position, the operator rotates the lever on the rotating wheel 846, causing the rotating wheel 846 to rotate and tighten the pull rope 844. At the same time, the pull rope 844 pulls the mounting plate 841 downward. The mounting plate 841 moves and presses the upper end of the hinge rod 843 to rotate downward, causing the lower end of the hinge rod 843 to push the connecting rod 82 to move outward from the inner layer plate 52. The connecting rod 82 pushes the support plate 81 to move along the guide tube 83 until the support plate 81 abuts against the inner wall of the sleeve 3.

[0057] As the mounting plate 841 moves downward, it drives the connecting rod 82 and the fixing block 852 to move downward until the fixing block 852 is inserted into the fixing groove 853. The fixing block 852 cooperates with the fixing groove 853 to fix the position of the mounting plate 841, thereby fixing the position of the support plate 81, so that the support plate 81 can cooperate with the sleeve 3 to fix the receiving box 5.

[0058] The operator rotates the operating lever 61, causing the operating lever 61 to drive the mating plate 62 to rotate until the mating plate 62 is aligned with the mating hole 511. Then, the operator pulls the operating lever 61 and the mating plate 62 upwards, causing both the operating lever 61 and the mating plate 62 to disengage from the receiving box 5. Then, the operator rotates the lever of the rotating wheel 846 to release the pull rope 844 on the rotating wheel 846 and continues to pull the operating lever 61 and the support plate 7 until the operating lever 61 disengages from the sleeve 3. Finally, the operator moves to a safe area and remotely detonates the explosive 4 to break up the blockage 2.

[0059] When breaking up blockage 2, the operator stands on the ground at the top of the chute 1 to reduce the risk of blockage 2 falling and causing adverse effects on the operator. When blasting a section of blockage 2, the casing 3 corresponding to that section of blockage 2 and the container 5 are all destroyed by the explosive 4. Therefore, after a section of blockage 2 is blasted, the operator repeats the above operation to blast the blockage 2 section by section from bottom to top until the blockage 2 is cleared.

[0060] The implementation principle of the drilling casing method for segmented blasting well cleaning device in this application is as follows: A drilling machine is operated to drill a through hole in the blockage 2 of the well pass 1, and the casing 3 is inserted into the through hole of the blockage 2. A mating plate 62 is inserted into the receiving box 5, and the operating lever 61 is rotated to mate the mating plate 62 with the top plate 51. A pull rope 844 is passed through the support plate 7 and wound around the rotating wheel 846. Then, the operating lever 61 is inserted into the casing 3, and the support plate 7 is placed on top of the casing 3. When the receiving box 5 reaches the predetermined position, the lever of the rotating wheel 846 is rotated to press the support plate 81 against the casing 3.

[0061] Rotate the lever of the rotating wheel 846 to disengage the pull rope 844 from the handwheel, rotate and pull the operating lever 61 to disengage the mating plate 62 from the receiving box 5, pull up the operating lever 61 and the support plate 7 until the operating lever 61 is disengaged from the sleeve 3; the operator moves to a safe position and remotely detonates the explosive 4; repeat the above operation until all the blockage 2 is cleared.

[0062] This application also discloses a well-clearing method, which uses the above-mentioned well-clearing device to clear the well, including the following steps:

[0063] S1. Operate the drilling machine to drill a through hole through the blockage 2 in the chute, and insert the sleeve 3 into the through hole.

[0064] S2. Place explosive 4 into the container 5, seal the inner plate 52 with the sealing component, insert the mating plate 62 into the mating hole 511, and rotate the operating lever 61 to make the mating plate 62 contact the top plate 51.

[0065] The container 5 containing explosives 4 can be lowered to a designated position via the operating lever 61.

[0066] S3. The receiving box 5 is delivered downwards via the operating lever 61. The operator uses the distance sensor 63 to determine the position of the receiving box 5 in the sleeve 3 until the receiving box 5 reaches the bottom of the blockage 2. After the receiving box 5 reaches the predetermined position, the rotating wheel 846 is rotated to move the support plate 81 to abut against the sleeve 3. The fixing block 852 is inserted into the fixing groove 853. The operating lever 61 is rotated and pulled upwards to separate the mating plate 62 from the receiving box 5. The operating lever 61 is then removed from the sleeve 3.

[0067] S4, remote-controlled explosive 4 detonates.

[0068] S5. Repeat the above operation steps S1 to S3, and carry out the blasting treatment section by section upward until the blockage 2 completely falls out of the well 1.

[0069] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for in-hole segmented blasting well cleaning using the drilled casing method, characterized in that: It includes a casing (3) installed in the chute (1) and penetrating the blockage (2), and a container (5) for holding explosives (4), the diameter of which is smaller than the inner diameter of the casing (3); The lowering assembly (6) is detachably connected to the receiving box (5), and the operator can lower the receiving box (5) to the predetermined position of the casing (3) from above the chute (1) via the lowering assembly (6); A support assembly (8) is installed in the receiving box (5). When the support assembly (8) is working, it fixes the receiving box (5) and the sleeve (3). The container (5) includes a top plate (51), and an inner plate (52) with an annular cross-section is fixed to the lower surface of the top plate (51). The lower end of the inner plate (52) is detachably connected to a sealing element for sealing the opening at the bottom of the inner plate (52). The lowering assembly (6) includes an operating rod (61), the diameter of which is smaller than the inner diameter of the sleeve (3). The end of the operating rod (61) is fixed with a mating plate (62) with a rectangular cross-section. The top plate (51) has a mating hole (511) that is adapted to the mating plate (62), and the mating hole (511) penetrates the mating plate (62). The lower surface of the top plate (51) is fixed with an outer plate (53) sleeved outside the inner plate (52). There is a gap between the side walls of the outer plate (53) and the inner plate (52) that are close to each other. A plurality of guide tubes (83) arranged around the inner plate (52) are connected between the inner plate (52) and the outer plate (53). The axis of the guide tube (83) is perpendicular to the axis of the inner plate (52). The outer plate (53) has through holes corresponding to the guide tubes (83). Each of the guide tubes (83) is slidably inserted with a support plate (81), and the side of the support plate (81) near the inner layer plate (52) is connected to a connecting rod (82) that passes through the inner layer plate (52). The support assembly (8) further includes a drive member (84) for moving the support plate (81) outward from the outer layer plate (53), and a fixing member (85) for positioning the support plate (81). The driving component (84) includes a hinge rod (843) hinged to one end of the connecting rod (82) located on the inner layer plate (52). The support assembly (8) includes a mounting plate (841) slidably inserted into the inner layer plate (52). The mounting plate (841) is located above the hinge rod (843), and the hinge rod (843) is hinged to the mounting plate (841). A plurality of connecting springs (842) are provided between the mounting plate (841) and the top plate (51). The two ends of the connecting springs (842) are respectively connected to the top plate (51) and the mounting plate (841). The hinge rod (843) is inclined and gradually tilts from top to bottom toward the edge of the inner layer plate (52). The lower surface of the mounting plate (841) is connected to a pull rope (844), one end of which passes through the sealing member and is located outside the receiving box (5). The driving member (84) also includes a mounting frame (845) set above the chute (1). A rotating wheel (846) is rotatably connected to the mounting frame (845), and the pull rope (844) is wound around the rotating wheel (846).

2. The device for in-hole segmented blasting well cleaning using the drilling casing method according to claim 1, characterized in that: The sealing component is a sealing block (54), which is located in the inner layer plate (52) and is threadedly connected to the inner layer plate (52).

3. The well-drain cleaning device for segmented blasting in the borehole using the drilling casing method according to claim 2, characterized in that: The fastener (85) includes several sliding rods (851) connected to the side wall of the mounting plate (841). The sliding rods (851) pass through the side wall of the inner layer plate (52) and slide along the axial direction of the inner layer plate (52). A fixing block (852) is connected to one end of the sliding rod (851) located between the inner layer plate (52) and the outer layer plate (53). A fixing groove (853) is provided between the inner layer plate (52) and the outer layer plate (53) below the fixing block (852). The diameter of the fixing groove (853) gradually decreases from top to bottom. The fixing groove (853) is fixed to the inner layer plate (52) and the outer layer plate (53).

4. The device for in-hole segmented blasting well cleaning using the drilling casing method according to claim 3, characterized in that: A support plate (7) is slidably inserted on the operating lever (61). The diameter of the support plate (7) is larger than the outer diameter of the sleeve (3). A distance sensor (63) for measuring the distance between the top plate (51) and the support plate (7) is installed on the lower surface of the support plate (7). A mounting bracket (845) is installed on the upper surface of the support plate (7). A pull rope (844) passes through the support plate (7).

5. A well-clearing method, comprising using the borehole-to-hole segmented blasting well-clearing device of claim 4, characterized in that, Includes the following steps: S1. Operate the drilling machine to drill through the blockage (2) in the chute (1) and insert the casing (3) into the through hole. S2. Place the explosive (4) into the container (5), and seal the inner plate (52) with the sealing member. Insert the mating plate (62) into the mating hole (511) and rotate the operating lever (61) to make the mating plate (62) contact the top plate (51). S3. The receiving box (5) is delivered downward by the operating lever (61). The operator knows the position of the receiving box (5) in the sleeve (3) through the distance sensor (63) until the receiving box (5) reaches the bottom of the blockage (2). After the receiving box (5) reaches the predetermined position, the rotating wheel (846) is rotated to move the support plate (81) to abut against the sleeve (3). The fixing block (852) is inserted into the fixing groove (853). The operating lever (61) is rotated and pulled upward to separate the mating plate (62) from the receiving box (5). The operating lever (61) is then removed from the sleeve (3). S4, remote-controlled explosive (4) detonation; S5. Repeat the above operation steps S1 to S3, and carry out the blasting treatment section by section upward until the blockage (2) is completely removed from the well (1).

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