Large-diameter deep hole non-coupling charging structure and charging method

Abstract

The invention discloses a large-diameter deep hole non-coupling charging structure and a charging method, and relates to the technical field of deep hole blasting. A blast hole located in the bottom is formed in the bottom of the large-diameter deep hole, a plurality of explosive bags are installed on the top of the blast hole, a detonating cord is installed in the middle of each explosive bag, a detonator is installed on the top of each detonating cord, and a detonating tube is connected to the top of each detonator. Each section of explosive bag at least comprises three groups of column explosives, the column explosives are communicated with one another, bamboo canes are mounted on the outer sides of the column explosives, and the sizes of the upper and lower ends of the bamboo canes are smaller than the height of the explosive bag; the adjacent column explosives are closed and are not separated; a closed end is installed at the bottom of the large-diameter deep hole, a central air pipe is installed on the closed end, and the top of the central air pipe extends out of the large-diameter deep hole. The high explosion risk caused by separated type laying and charging is avoided, and the stable safety effect is achieved through block type installation and layer-by-layer stacking.

Description

Technical Field

[0001] The invention relates to the technical field of deep hole blasting, in particular to a large-diameter deep hole uncoupled charging structure and a charging method. Background Art

[0002] The large-diameter deep-hole blasting technology in underground mines is relatively mature in mining applications. The universal hole diameter for rock drilling is 120mm, but there is a common problem in rock drilling. Rock drilling with a hole diameter of 120mm or less is more likely to tilt or even bend, resulting in a large difference between the hole network parameters and the design, which seriously affects the blasting effect.

[0003] When drilling with a hole diameter of 150mm or more is used, the blasthole deviation is small and the hole network parameters meet the design requirements, but there is a problem with the charging structure. The current charging method is to use interval charging, which can meet the unit consumption requirements of explosives, such as the large-diameter deep hole blasting charging structure in reference 201821656086.3; but the charging structure is complex, the operation is cumbersome, the production efficiency is low, and there is a risk of friction and explosion due to the separate feeding method.

[0004] To this end, we provide a large-diameter deep-hole uncoupled charging structure and charging method to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to make up for the shortcomings of the prior art and provide a large-diameter deep-hole uncoupled charging structure and a charging method to solve the higher risk of explosion caused by separate laying of charges, and the block-type installation and stacking have a more stable safety effect.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] The large-diameter deep hole uncoupled charge structure comprises a large-diameter deep hole, a blast hole is arranged at the bottom of the large-diameter deep hole, a plurality of sections of powder bags are installed on the top of the blast hole, a detonating cord is installed in the middle of the powder bag, a detonator is installed on the top of the detonating cord, and a detonating cord is connected to the top of the detonator;

[0008] Each medicine pack includes at least three groups of column medicines, and the column medicines are connected and bamboo strips are installed on the outside. The upper and lower ends of the bamboo strips are smaller than the height of the medicine pack; and the adjacent column medicines are closed without separation.

[0009] A closed end is installed at the bottom of the large-diameter deep hole, a central air pipe is installed on the closed end, and the top of the central air pipe extends out of the large-diameter deep hole.

[0010] In a further technical solution, the uncoupled charging coefficient is between 1.5 and 1.85, the diameter of the blasthole is >150mm, the depth of the large-diameter deep hole is 30 to 50 meters, and the diameter of the column charge is 110mm.

[0011] In a further technical solution, the closed end includes a closed plate and a bottom air bag, the size of the closed plate is smaller than the size of the blast hole, and a connecting interface is installed at the bottom and connected to the central air pipe, and the central air pipe and the connecting interface are movably connected;

[0012] The closing plate is filled with a layer of concrete and a layer of fine sand.

[0013] In a further technical solution, a central through pipe is installed in the middle of each medicine bag, and an upper connecting plate and a lower connecting plate are installed at the upper and lower ends of the central through pipe respectively; a connecting hole is opened between the upper connecting plate and the lower connecting plate, and a guide rope is installed; the guide rope extends from the bottom of the large diameter deep hole to the top.

[0014] In a further technical solution, the central through pipe includes a hard part and a soft part, the hard part is provided in three groups, and the soft part is provided adjacent to the hard part; the soft part is separated by a partition membrane, and the strength of the hard part is stronger than that of the soft part; the soft part is suitable for the detonating cord to ignite and explode through; the soft parts are all located at the horizontal position of the column charge.

[0015] In a further technical solution, the central through pipe is suitable for being filled with a detonating cord, and the detonating cord is a safety detonating cord.

[0016] In a further technical solution, the inner diameter of the middle tube is larger than the outer diameter of the detonating cord, and is at least twice as large.

[0017] In a further technical solution, a guide cross disk is installed on the top of the large-diameter deep hole, and a fixing seat is installed on the guide cross disk, a position screw rod is installed in the fixing seat, and a support plate is installed on the position screw rod;

[0018] A traction rope is also installed in the large-diameter deep hole, and the traction rope is suitable for traction of each section of the medicine bag;

[0019] A winding opening is installed on the support plate, and the winding opening is suitable for movably abutting against the guide rope or the traction rope;

[0020] There are two sets of guide ropes and traction ropes, which are arranged at intervals;

[0021] A position motor is coaxially mounted at the end of the position screw rod, and the position motor is suitable for driving the position screw rod to rotate;

[0022] A nut seat is installed on the position screw rod, and the nut seat is fixedly connected to the support plate;

[0023] A winding drum and a winding motor are also installed on the support plate. The winding motor is connected to the winding drum. The body of the winding motor is installed on the support plate. The winding drum is suitable for winding the end of the traction rope or the guide rope.

[0024] In a further technical solution, a mounting recess is provided on the top of each group of upper connecting plates, and a connecting port is provided in the mounting recess, and a mounting ring is installed on the connecting port, and the mounting ring is in the shape of a long strip;

[0025] A connecting hook is movably installed in the installation ring, and the connecting hook is connected to the traction rope;

[0026] Fixed plates are arranged on both sides of the mounting ring, and a return spring is installed on the side of the fixed plate facing away from the connecting hook, one end of the return spring is fixedly connected to the fixed plate, and the bottom is fixedly connected to the inner wall of the mounting recess;

[0027] The upper connecting disk and the lower connecting disk are both provided with a recessed ring; an arc-shaped magnetic plate is installed in the recessed ring, the arc-shaped magnetic plate is suitable for adsorbing the connecting hook, and the elastic force of the reset spring is greater than the magnetic attraction of the arc-shaped magnetic plate to the mounting ring.

[0028] The charging method of the large-diameter deep-hole uncoupled charging structure comprises the following steps:

[0029] Step 1: Make the rock drilling hole diameter larger than 150mm to ensure the hole depth and verticality of the large diameter deep hole;

[0030] Step 2: Use the same structure of the upper connecting plate on the closed plate, and gradually lower it at a low speed to the designed depth through two sets of traction ropes; first fill the gas from the central air pipe so that the bottom air bag is filled in the large-diameter deep hole; stop the inflation when the lifting traction rope cannot be pulled;

[0031] Step 3, fill the closed plate with concrete slurry, the height of the concrete slurry is greater than 0.5m; after the concrete solidifies, fill the secondary concrete, and the aggregate size of the secondary concrete is required to be smaller than the aggregate size of the previous concrete, and place a vibrator to vibrate and compact;

[0032] After the secondary concrete solidifies, lay a fine sand layer, and pull out the central air pipe after it is formed;

[0033] Step 4, laying the bottom layer of medicine bags, with upper and lower connecting plates set above and below the medicine bags, and a through pipe set in the middle to support the medicine bags, and bamboo strips are installed on the outside of the medicine bags and fixed by tying;

[0034] Two sets of guide ropes are fixed on the top of the lower connecting plate and passed through the upper connecting plate to the top of the large-diameter deep hole;

[0035] Then, the top portion passes through the lower connection disk and the upper connection disk on the medicine packs of multiple groups in sequence, and then is respectively wound around the winding openings on the corresponding support plates, and then is connected to the corresponding winding drum and fixed;

[0036] Step 5, placing each section of the medicine bag on the large diameter deep hole in turn, connecting it to the installation ring through a traction rope, and the installation ring bends under the action of gravity;

[0037] Place each section of the medicine bag into the large diameter deep hole in turn; set a notch on the guide cross plate and continue to put it down along the notch;

[0038] Step 6: The position motor drives the support plate to move away from the large-diameter deep hole, reducing the speed of the descending medicine package and maintaining the centering with the bottom medicine package;

[0039] Step 7, lower the medicine bag to the bottom medicine bag, lower the traction rope again, make the connecting hook descend along the inner hole of the mounting ring, under the action of the reset spring, the mounting ring bends in the direction away from the connecting hook; the connecting hook is then adsorbed on the arc-shaped magnetic plate under the adsorption action of the arc-shaped magnetic plate, and the connecting hook is pulled to make the traction rope and the connecting hook rise, thereby detaching from the medicine bag;

[0040] Step 8, repeat steps 5-7 to complete the installation of all the medicine bags; remove the top guide cross plate;

[0041] Step 9, insert the detonating cord into the central through pipe;

[0042] Step 10, install detonators and detonating cords to achieve long-distance detonation.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] The present invention uses this charging method to make various blasting parameter indicators meet the design calculation requirements, the operation is simple and reliable, the blasting efficiency is significantly improved, and for the same blasting charge, the use of this charging method can save half the time compared with the interval charging method, and the large block generation rate after blasting is low.

[0045] The present invention uses bottom inflation to enter the bottom airbag to achieve a rapid bottom sealing effect, which is used to support the sealing plate to realize the bottom pouring of concrete, and then support the structure of the charge to achieve the weight pressure of multiple groups of charge. The present invention realizes the quantitative installation of multiple groups of charge by providing a charge with a fixed structure, and realizes the determination of the blasting consumption at each position. The present invention realizes the safe installation of the detonating cord by installing a central pipeline in the middle of the column charge, avoiding the risk of friction explosion caused by direct contact between the detonating cord and the column charge.

[0046] The present invention installs a rotatable mounting ring on the closing plate and the upper connecting plate and realizes effective connection and traction with the connecting hook, so that the medicine packs are put down one by one and orderly installation is realized. The present invention installs a reset spring and an arc-shaped magnetic plate to realize the attraction of the two lateral forces of the mounting ring and the connecting hook respectively, so as to achieve the technical effect of detaching from the mounting ring after the connecting hook is lowered. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic diagram of the structure in a large-diameter deep hole of Example 1 of the present invention;

[0048] Figure 2 for Figure 1 A magnified view of part A;

[0049] Figure 3 It is a schematic diagram of the installation of the closed end head of the present invention;

[0050] Figure 4 This is a diagram of the structure of the medicine package of Example 1 of the present invention;

[0051] Figure 5 It is a cross-sectional structural diagram of a medicine package of Example 1 of the present invention;

[0052] Figure 6 This is a schematic diagram of the structure in a large-diameter deep hole of Example 2 of the present invention;

[0053] Figure 7 for Figure 6 A magnified view of part B;

[0054] Figure 8 It is a schematic diagram of the closing plate and the bottom air bag of the present invention;

[0055] Fig. 9 This is a schematic diagram of the installation of the closed end head of Example 2 of the present invention;

[0056] Fig.10 for Fig. 9 Enlarged view of part C;

[0057] Fig.11 This is a schematic diagram of the structure in a large-diameter deep hole of Example 3 of the present invention;

[0058] Fig.12 for Fig.11 A magnified view of the D portion;

[0059] Fig.13 A top view schematic diagram of the guide cross plate;

[0060] In the figure: 1, large diameter deep hole; 2, blast hole; 3, powder bag; 4, detonating cord; 5, detonator; 6, detonating tube; 7, closed end; 11, concrete layer; 12, fine sand layer; 13, traction rope; 14, connecting hook;

[0061] 31. Pillar medicine; 32. Bamboo strip; 33. Middle through pipe; 34. Upper connecting plate; 35. Lower connecting plate; 36. Connecting hole; 37. Guide rope; 331. Hard part; 332. Soft part; 341. Mounting notch; 342. Mounting ring; 343. Fixing plate; 344. Reset spring; 345. Arc-shaped magnetic plate;

[0062] 71. Closing plate; 72. Bottom air bag; 73. Central air pipe;

[0063] 9. Guide cross plate; 91. Fixed seat; 92. Position screw rod; 93. Support plate; 94. Winding mouth; 95. Position motor; 96. Nut seat; 97. Winding drum; 98. Winding motor; DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] Example 1

[0066] See also Figure 1-5 The present invention provides a technical solution, a large-diameter deep hole uncoupled charge structure, comprising a large-diameter deep hole 1, a blast hole 2 is arranged at the bottom of the large-diameter deep hole 1, a multi-section powder bag 3 is installed on the top of the blast hole 2, a detonating cord 4 is installed in the middle of the powder bag 3, a detonator 5 is installed on the top of the detonating cord 4, and a detonating cord 6 is connected to the top of the detonator 5;

[0067] Each section of the medicine bag 3 includes at least three groups of column medicines 31, and the column medicines 31 are connected and bamboo strips 32 are installed on the outside, and the upper and lower ends of the bamboo strips 32 are smaller than the height of the medicine bag 3; and the adjacent column medicines 31 are closed and not separated; a closed end 7 is installed at the bottom of the large-diameter deep hole 1, and a central air pipe 73 is installed on the closed end 7, and the top of the central air pipe 73 extends out of the large-diameter deep hole 1. The present invention uses the bottom inflation into the bottom airbag to achieve a rapid bottom sealing effect. And it is used to support the structure of the bottom support medicine bag.

[0068] The uncoupled charge coefficient is between 1.5 and 1.85, the aperture of the blasthole 2 is >150mm, the depth of the large-diameter deep hole 1 is 30 to 50 meters, and the diameter of the column charge 31 is 110mm. A further solution is that the blasting unit consumption is between 0.35 and 0.4, the uncoupled charge coefficient is between 1.5 and 1.85, the blasthole aperture is 165mm, the hole depth is 39 meters, and the column diameter is 110mm. Through this charging method, all blasting parameter indicators can meet the design calculation requirements, the operation is simple and reliable, and the blasting efficiency is significantly improved. For the same blasting charge, this charging method can save half the time compared with the interval charging method, and the large block generation rate after blasting is low.

[0069] The closed end 7 includes a closing plate 71 and a bottom air bag 72. The size of the closing plate 71 is smaller than the size of the blast hole 2, and a connecting interface is installed at the bottom and connected to the central air pipe 73. The central air pipe 73 and the connecting interface are movably connected. The closing plate 71 is filled with a concrete layer 11 and a fine sand layer 12.

[0070] like Figure 4 and 5 As shown, a central through pipe 33 is installed in the middle of each medicine bag 3, and an upper connecting plate 34 and a lower connecting plate 35 are installed at the upper and lower ends of the central through pipe 33 respectively; a connecting hole 36 is opened between the upper connecting plate 34 and the lower connecting plate 35, and a guide rope 37 is installed; the guide rope 37 extends from the bottom to the top of the large-diameter deep hole 1.

[0071] The central through pipe 33 includes a hard part 331 and a soft part 332. The hard part 331 is provided in three groups, and the soft part 332 is provided adjacent to each other. The soft part 332 is separated by a partition membrane, and the strength of the hard part 331 is stronger than that of the soft part 332. The soft part 332 is suitable for the detonating cord 4 to ignite and explode through. The soft part 332 is located at the horizontal position of the column charge 31. The soft part ensures the detonation effect of the detonating cord, and can achieve the explosion effect of multiple column charges synchronously.

[0072] The middle through pipe 33 is suitable for filling the detonating cord 4, and the detonating cord 4 is a safe detonating cord 4. Separately installing the detonating cord in the middle through pipe can improve the safety of detonation. In order to avoid the problem of frictional electricity, firstly, the inner diameter of the middle tube pipe is larger than the outer diameter of the detonating cord 4, and at least larger than 2 times, so as to facilitate installation and material cutting. Secondly, the detonating cord 4 is a safe detonating cord 4, and its material has certain flame retardant and explosion-proof properties, which can effectively prevent the generation of sparks and static electricity.

[0073] Example 2

[0074] like Figure 6-10As shown, another implementation scheme of the present invention is based on Example 1, a mounting recess 341 is provided on the top of each group of upper connecting plates 34, and a connecting port is provided in the mounting recess 341, and a mounting ring 342 is installed on the connecting port, and the mounting ring 342 is in the shape of a long strip; the long strip ring realizes the effect of facilitating connection with the connecting hooks and easily detaching under the action of the reset spring after descending.

[0075] A connecting hook 14 is movably installed in the mounting ring 342, and the connecting hook 14 is connected to the traction rope 13;

[0076] Fixed plates 343 are provided on both sides of the mounting ring 342, and a reset spring 344 is installed on the side of the fixed plate 343 facing away from the connecting hook 14, one end of the reset spring 344 is fixedly connected to the fixed plate 343, and the bottom is fixedly connected to the inner wall of the mounting recess 341; the upper connecting plate 34 and the lower connecting plate 35 are both provided with recessed rings; an arc-shaped magnetic plate 345 is installed in the recessed ring, the arc-shaped magnetic plate 345 is suitable for adsorbing the connecting hook 14, and the elastic force of the reset spring 344 is greater than the magnetic attraction of the arc-shaped magnetic plate 345 on the mounting ring 342.

[0077] Example 3

[0078] like Figure 11-13 As shown, it is another embodiment of the present invention. On the basis of Example 1, a guide cross disk 9 is installed on the top of the large-diameter deep hole 1, and a fixing seat 91 is installed on the guide cross disk 9, a position screw rod 92 is installed in the fixing seat 91, and a support plate 93 is installed on the position screw rod 92; a traction rope 13 is also installed in the large-diameter deep hole 1, and the traction rope 13 is suitable for traction of each section of the medicine bag 3; a winding mouth 94 is installed on the support plate 93, and the winding mouth 94 is suitable for movably abutting the guide rope 37 or the traction rope 13; the guide rope 37 and the traction rope 13 are both provided with two groups and are arranged at intervals; a position motor 95 is coaxially installed at the end of the position screw rod 92, and the position motor 95 is suitable for driving the position screw rod 92 to rotate;

[0079] A nut seat 96 is installed on the position screw rod 92, and the nut seat 96 is fixedly connected to the support plate 93;

[0080] A winding drum 97 and a winding motor 98 are also installed on the support plate 93. The winding motor 98 is connected to the winding drum 97. The body of the winding motor 98 is installed on the support plate 93. The winding drum 97 is suitable for winding the end of the traction rope 13 or the guide rope 37.

[0081] The charging method of the large-diameter deep-hole uncoupled charging structure comprises the following steps:

[0082] Step 1, the rock drilling hole diameter is larger than 150 mm to ensure the hole depth and verticality of the large diameter deep hole 1;

[0083] Step 2, using the same structure of the upper connecting plate 34 on the closing plate 71, gradually lower it at a low speed through two sets of traction ropes 13 to the designed depth; first fill the gas from the central air pipe 73 so that the bottom air bag 72 is filled in the large-diameter deep hole 1; the lifting traction rope 13 cannot be pulled, and the inflation is stopped;

[0084] Step 3, fill the closing plate 71 with concrete slurry, the height of which is greater than 0.5m; after the concrete solidifies, fill the secondary concrete, which is required to have a smaller aggregate size than the previous concrete, and place a vibrator to vibrate and compact it;

[0085] After the secondary concrete solidifies, a fine sand layer 12 is laid, and after it is formed, the central air pipe 73 is pulled out;

[0086] Step 4, laying the bottom layer of medicine bag 3, upper connecting plate 34 and lower connecting plate 35 are arranged on the upper and lower parts of medicine bag 3, and a through pipe 33 is arranged in the middle part for supporting medicine bag 3, and bamboo strips 32 are installed on the outer side of medicine bag 3 and fixed by binding;

[0087] Two sets of guide ropes 37 are fixed on the top of the lower connecting plate 35 and pass through the upper connecting plate 34 to the top of the large-diameter deep hole 1;

[0088] Then, the medicine bags 3 are passed through the lower connecting plates 35 and the upper connecting plates 34 on the top of the medicine bags 3 in turn, and then are respectively wound around the winding openings 94 on the corresponding support plates 93, and then connected to the corresponding winding drums 97 and fixed;

[0089] Step 5, placing each medicine bag 3 on the large-diameter deep hole 1 in sequence, and connecting it to the mounting ring 342 through the traction rope 13, and the mounting ring 342 is bent under the action of gravity;

[0090] Place each section of the medicine package 3 into the large diameter deep hole 1 in sequence; set a notch on the guide cross plate 9, and continue to put it down along the notch;

[0091] Step 6, the position motor 95 drives the support plate 93 to move away from the large-diameter deep hole 1, reducing the speed of the descending medicine package 3 and maintaining the alignment with the bottom medicine package 3;

[0092] Step 7, lower the medicine bag 3 to the bottom medicine bag 3, lower the traction rope 13 again, and make the connecting hook 14 descend along the inner hole of the mounting ring 342. Under the action of the reset spring 344, the mounting ring 342 bends in the direction away from the connecting hook 14; then the connecting hook 14 is adsorbed on the arc-shaped magnetic plate 345 under the adsorption action of the arc-shaped magnetic plate 345, and the connecting hook 14 is pulled to make the traction rope 13 and the connecting hook 14 rise, thereby separating from the medicine bag 3;

[0093] Step 8, repeat steps 5-7 to complete the installation of all medicine packages 3; remove the guide cross plate 9 at the top;

[0094] Step 9, inserting the detonating cord 4 into the central through pipe 33;

[0095] Step 10, installing the detonator 5 and the detonating cord 6 to achieve long-distance detonation.

[0096] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0097] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Large diameter deep hole uncoupled charge structure, characterized by: The invention comprises a large-diameter deep hole (1), a blast hole (2) is arranged at the bottom of the large-diameter deep hole (1), a plurality of sections of powder bags (3) are installed on the top of the blast hole (2), a detonating cord (4) is installed in the middle of the powder bag (3), a detonating cap (5) is installed on the top of the detonating cord (4), and a detonating cord (6) is connected to the top of the detonator (5); Each medicine bag (3) comprises at least three groups of column medicines (31), and the column medicines (31) are connected to each other and are provided with bamboo strips (32) on the outside, wherein the upper and lower ends of the bamboo strips (32) are smaller than the height of the medicine bag (3); and the adjacent column medicines (31) are closed and not separated; A closed end (7) is installed at the bottom of the large-diameter deep hole (1), and a central air pipe (73) is installed on the closed end (7), and the top of the central air pipe (73) extends out of the large-diameter deep hole (1).

2. The large-diameter deep-hole uncoupled charge structure according to claim 2 is characterized in that: The uncoupled charge coefficient is between 1.5 and 1.85, the diameter of the blasthole (2) is greater than 150 mm, the depth of the large-diameter deep hole (1) is 30 to 50 meters, and the diameter of the column charge (31) is 110 mm.

3. The large-diameter deep-hole uncoupled charge structure according to claim 1 is characterized in that: The closed end (7) comprises a closed plate (71) and a bottom air bag (72); the size of the closed plate (71) is smaller than the size of the blast hole (2); a connection interface is installed at the bottom and is connected to a central air pipe (73); the central air pipe (73) and the connection interface are movably connected; The closing plate (71) is filled with a concrete layer (11) and a fine sand layer (12).

4. The large-diameter deep-hole uncoupled charge structure according to claim 2 is characterized in that: A central through pipe (33) is installed in the middle of each medicine bag (3), and an upper connecting plate (34) and a lower connecting plate (35) are installed at the upper and lower ends of the central through pipe (33), respectively; a connecting hole (36) is provided between the upper connecting plate (34) and the lower connecting plate (35), and a guide rope (37) is installed; the guide rope (37) extends from the bottom of the large-diameter deep hole (1) to the top.

5. The large-diameter deep-hole uncoupled charge structure according to claim 4 is characterized in that: The through pipe (33) comprises a hard part (331) and a soft part (332). The hard part (331) is provided in three groups, and the soft part (332) is provided adjacent to the hard part (331). The soft part (332) is separated by a separation membrane, and the strength of the hard part (331) is stronger than that of the soft part (332). The soft part (332) is suitable for the detonating cord (4) to ignite and explode through. The soft parts (332) are all located at the horizontal position of the column charge (31).

6. The large-diameter deep-hole uncoupled charge structure according to claim 4 is characterized in that: The central through pipe (33) is suitable for being filled with a detonating cord (4), and the detonating cord (4) is a safety detonating cord (4).

7. The large-diameter deep-hole uncoupled charge structure according to claim 4 is characterized in that: The inner diameter of the middle tube is greater than the outer diameter of the detonating cord (4), and is at least twice as large.

8. The large-diameter deep-hole uncoupled charge structure according to claim 4 is characterized in that: A guide cross disk (9) is installed on the top of the large-diameter deep hole (1), a fixing seat (91) is installed on the guide cross disk (9), a position screw rod (92) is installed in the fixing seat (91), and a support plate (93) is installed on the position screw rod (92); A traction rope (13) is also installed in the large-diameter deep hole (1), and the traction rope (13) is suitable for traction of each section of the medicine bag (3); A winding opening (94) is installed on the support plate (93), and the winding opening (94) is suitable for movably contacting the guide rope (37) or the traction rope (13); The guide rope (37) and the traction rope (13) are both provided in two groups and are arranged at intervals; A position motor (95) is coaxially mounted on the end of the position screw rod (92), and the position motor (95) is suitable for driving the position screw rod (92) to rotate; A nut seat (96) is installed on the position screw rod (92), and the nut seat (96) is fixedly connected to the support plate (93); A winding drum (97) and a winding motor (98) are also mounted on the support plate (93). The winding motor (98) is connected to the winding drum (97). The body of the winding motor (98) is mounted on the support plate (93). The winding drum (97) is suitable for winding the end of the traction rope (13) or the guide rope (37).

9. The large-diameter deep-hole uncoupled charge structure according to claim 8, characterized in that: A mounting recess (341) is provided on the top of each group of upper connecting plates (34), and a connecting port is provided in the mounting recess (341), and a mounting ring (342) is installed on the connecting port, and the mounting ring (342) is in the shape of a long strip; A connecting hook (14) is movably installed in the installation ring (342), and the connecting hook (14) is connected to the traction rope (13); A fixing plate (343) is provided on both sides of the mounting ring (342), and a return spring (344) is installed on the side of the fixing plate (343) facing away from the connecting hook (14), one end of the return spring (344) is fixedly connected to the fixing plate (343), and the bottom is fixedly connected to the inner wall of the mounting recess (341); The upper connecting plate (34) and the lower connecting plate (35) are both provided with a recessed ring; An arc-shaped magnetic plate (345) is installed in the recessed ring. The arc-shaped magnetic plate (345) is suitable for adsorbing the connecting hook (14), and the elastic force of the return spring (344) is greater than the magnetic attraction force of the arc-shaped magnetic plate (345) on the mounting ring (342).

10. A charging method for a large-diameter deep-hole uncoupled charging structure, characterized in that: The following steps are involved: Step 1, the rock drilling hole diameter is larger than 150 mm, ensuring the hole depth and verticality of the large diameter deep hole (1); Step 2, using the same structure of the upper connecting plate (34) on the closing plate (71), gradually lowering at a low speed to the designed depth through two sets of traction ropes (13); first filling gas from the central air pipe (73) so that the bottom air bag (72) is filled in the large-diameter deep hole (1); when the lifting traction rope (13) cannot be pulled, stop filling; Step 3, filling the closing plate (71) with concrete slurry, the height of which is greater than 0.5m; after the concrete solidifies; filling with secondary concrete, which is required to have a smaller aggregate size than the previous concrete, and placing a vibrator to vibrate and compact it; After the secondary concrete solidifies, a fine sand layer (12) is laid, and after it is formed, the central air pipe (73) is pulled out; Step 4, laying the bottom layer of medicine bags (3), the medicine bags (3) are provided with an upper connecting plate (34) and a lower connecting plate (35) above and below, and a through pipe (33) is provided in the middle to support the medicine bags (3), and the outside of the medicine bags (3) is fixed by installing bamboo strips (32) and tying; Two sets of guide ropes (37) are fixed on the top of the lower connecting plate (35) and pass through the upper connecting plate (34) to the top of the large-diameter deep hole (1); Then, the top portion is passed through the lower connection disk (35) and the upper connection disk (34) on the plurality of groups of medicine bags (3) in sequence, and then respectively wound around the winding openings (94) on the corresponding support plates (93), and then connected to the corresponding winding drums (97) and fixed; Step 5, placing each medicine bag (3) on the large-diameter deep hole (1) in sequence, connecting it to the mounting ring (342) through the traction rope (13), and bending the mounting ring (342) under the action of gravity; Each medicine bag (3) is sequentially placed into the large-diameter deep hole (1); a notch is provided on the guide cross plate (9), and the medicine bags are continuously placed along the notch; Step 6, the position motor (95) drives the support plate (93) to move away from the large-diameter deep hole (1), reducing the speed of the descending medicine package (3) and maintaining the alignment with the bottom medicine package (3); Step 7, lowering the medicine bag (3) to the bottom medicine bag (3), lowering the traction rope (13) again, causing the connecting hook (14) to descend along the inner hole of the mounting ring (342), and under the action of the return spring (344), the mounting ring (342) is bent in a direction away from the connecting hook (14); the connecting hook (14) is then adsorbed on the arc-shaped magnetic plate (345) under the adsorption action of the arc-shaped magnetic plate (345), and the connecting hook (14) is pulled to cause the traction rope (13) and the connecting hook (14) to rise, thereby detaching from the medicine bag (3); Step 8, repeat steps 5-7 to complete the installation of all medicine packages (3); remove the top guide cross plate (9); Step 9, inserting the detonating cord (4) into the central through pipe (33); Step 10, installing the detonator (5) and the detonating cord (6) to achieve long-distance detonation.

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