Coal mine roof deep hole presplitting directional blasting energy gathering pipe device

Abstract

The utility model relates to the technical field of coal mines, in particular to a coal mine roof deep hole presplitting directional blasting energy gathering pipe device which comprises an upper energy gathering pipe, the two sides of the middle of the upper energy gathering pipe are connected with supporting frames through torque springs, and the two ends of the upper energy gathering pipe are provided with upper fixing frames. According to the coal mine top plate deep hole presplitting directional blasting energy gathering pipe device, the energy gathering pipe is firmly fixed to the preset position in a hole by installing the energy gathering pipe installing and disassembling mechanism, the energy gathering pipe is firmly fixed to the preset position in the hole, and therefore the energy gathering pipe is firmly fixed to the position in the hole; and meanwhile, by installing the supporting frame structure, the situation that the device falls off due to the gravity of the device during mine deep hole installation is prevented, by installing the containing groove, blasting materials such as explosives are accurately placed, and it is guaranteed that the initial distribution of the blasting energy is scientific and reasonable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mine especially relates to a coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device. BACKGROUND

[0002] In the coal mining operation, the effective control of the roof plays a vital role in guaranteeing the safety production and improving the mining efficiency. The roof pre-splitting blasting as a common roof control means aims to make the crack network in the roof stratum in advance, change the mechanical structure of the roof, reduce the risk of large area roof caving, and promote the roof to cave in the expected way, thereby reducing the impact of the roof pressure on the operation surface in the mining process.

[0003] The traditional coal mine roof blasting operation mostly adopts the simple blasting device and mode. On the one hand, in the blasting pipe fixing link, the blasting pipe is simply placed in the blasting hole without reliable positioning and anti-falling mechanism, which makes the blasting pipe easily displace or even fall off under the influence of the gravity, hole wall friction and subsequent construction vibration in the deep hole environment. On the other hand, the energy-gathering pipe is prevented from being collected before blasting and the energy-gathering pipe material, which leads to the failure of the closed energy-gathering pipe and the energy produced by the explosion is dissipated in the unintended direction, resulting in the great discount of the energy-gathering effect and the influence of the blasting effect.

[0004] Therefore, it is necessary to provide a new coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device.

[0006] The coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device provided by the utility model comprises: an upper energy-gathering pipe, support frames are connected to the upper energy-gathering pipe through torque springs on both sides of the middle of the upper energy-gathering pipe, the torque springs provide appropriate torsion, the upper energy-gathering pipe and the support frames maintain a relatively stable positional relationship, the falling off of the upper energy-gathering pipe due to the gravity is prevented during the installation of the mine hole deep hole, the upper energy-gathering pipe can maintain the predetermined posture and the complete structure, and the falling off risk is avoided, upper fixing frames are arranged at both ends of the upper energy-gathering pipe, first fixing plates are fixedly connected to both sides of the upper fixing frames, second threaded holes are arranged in the middle of the first fixing plates, the first fixing plates provide the basic structure for the assembly and connection of other components, and the main structure of the whole device is built.

[0007] Preferably, lower fixing frames are arranged below the upper fixing frames, second fixing plates are fixedly connected to both sides of the lower fixing frames, first threaded holes are arranged in the second fixing plates, and a stable overall frame structure is formed to guarantee the stable function of the energy-gathering pipe.

[0008] Preferably, the second threaded hole is threadedly connected with the first threaded hole through a bolt, facilitating on-site assembly, disassembly, maintenance and component replacement.

[0009] Preferably, the upper fixing frame and the lower fixing frame are fixedly connected with reset springs in the middle, and the reset springs are fixedly connected with clamping plates at the other ends, so that the upper fixing frame and the lower fixing frame are effectively clamped and stabilized.

[0010] Preferably, the upper energy-gathering pipe is provided below with a lower energy-gathering pipe, and the lower energy-gathering pipe is internally provided with a plurality of placing grooves for accurately placing explosive materials, and the filling amount and layout mode of the materials are strictly controlled according to the engineering blasting design specification and the demand for roof pre-splitting, so as to ensure that the initial distribution of blasting energy is scientific and reasonable.

[0011] Preferably, the upper energy-gathering pipe can be stably kept in the relative position relationship with the support frame by means of the torque spring, so as to prevent the subsequent energy-gathering pipe from falling off during installation in the mine hole.

[0012] Preferably, the outer surface of the upper energy-gathering pipe is uniformly coated with a wear-resistant coating in the axial direction, so as to reduce surface wear during transportation, installation and operation, and ensure that the energy-gathering pipe device is stable and reliable in performance.

[0013] Compared with the related art, the coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device has the following beneficial effects:

[0014] 1. The coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device is characterized in that the energy-gathering pipe is fixedly arranged at a predetermined position in the hole through the installation and dismounting mechanism, so as to prevent the energy-gathering pipe from being unsealed before blasting, and the energy generated by explosion is dissipated in unintended directions, which greatly reduces the energy-gathering effect and affects the blasting effect.

[0015] 2. The coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device is characterized in that the support frame structure is installed, so as to prevent the energy-gathering pipe from falling off due to its own gravity during installation in the mine hole, and the upper energy-gathering pipe can maintain a predetermined posture and complete structure, thereby avoiding the risk of falling off and ensuring that the device is smoothly installed at the operation site and maintains the integrity of the subsequent functions.

[0016] 3. The coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device is characterized in that the placing grooves are installed, so as to accurately place explosive materials such as explosives, and the filling amount and layout mode of the materials are strictly controlled according to the engineering blasting design specification and the demand for roof pre-splitting, so as to ensure that the initial distribution of blasting energy is scientific and reasonable. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure diagram of a preferred embodiment of the coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device is provided.

[0018] Figure 2 Fig. 1 is a structural schematic view of the upper convergent tube installation and dismounting mechanism shown in the utility model; Figure 1 Fig. 2 is a structural schematic view of the lower convergent tube installation and dismounting mechanism shown in the utility model;

[0019] Figure 3 Fig. 3 is a structural schematic view of the support frame shown in the utility model; Figure 1 Fig. 4 is a structural schematic view of the fixed frame shown in the utility model.

[0020] Figure 4 Fig. 5 is a structural schematic view of the fixed frame shown in the utility model. Figure 1 Fig. 1 is a structural schematic view of the upper convergent tube installation and dismounting mechanism shown in the utility model; Fig. 2 is a structural schematic view of the lower convergent tube installation and dismounting mechanism shown in the utility model; Fig. 3 is a structural schematic view of the support frame shown in the utility model; Fig. 4 is a structural schematic view of the fixed frame shown in the utility model; Fig. 5 is a structural schematic view of the fixed frame shown in the utility model; Fig. 6 is a structural schematic view of the upper convergent tube installation and dismounting mechanism shown in the utility model; Fig. 7 is a structural schematic view of the lower convergent tube installation and dismounting mechanism shown in the utility model; Fig. 8 is a structural schematic view of the support frame shown in the utility model; Fig. 9 is a structural schematic view of the fixed frame shown in the utility model.

[0021] DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0023] The specific implementation of the utility model will be described in detail by combining with specific examples.

[0024] Please refer to Figures 1 to 4 ​The utility model discloses a kind of coal mine roof deep hole pre-splitting directional blasting energy-gathering tube devices, coal mine roof deep hole pre-splitting directional blasting energy-gathering tube device includes: upper energy-gathering tube 1, upper energy-gathering tube 1 middle both sides are connected with support frame 8 by torque spring 12, upper energy-gathering tube 1 both ends are provided with upper fixed frame 3, first fixed plate 4 is fixedly connected on the both sides of upper fixed frame 3, second threaded hole 14 is provided in first fixed plate 4, lower fixed frame 6 is provided below upper fixed frame 3, second fixed plate 7 is fixedly connected on the both sides of lower fixed frame 6, first threaded hole 9 is provided in second fixed plate 7, second threaded hole 14 is connected by bolt 5 and first threaded hole 9 with threaded connection, reset spring 13 is fixedly connected to the other end of reset spring 13, and the middle of the inside of upper fixed frame 3 and lower fixed frame 6 is fixedly connected, clamp plate 11 is fixedly connected to the other end of reset spring 13, lower energy-gathering tube 2 is provided below upper energy-gathering tube 1, a plurality of placing grooves 10 are provided in lower energy-gathering tube 2, upper energy-gathering tube 1 and lower energy-gathering tube 2 are stably positioned by the cooperation of the upper fixed frame 3 and lower fixed frame 6 of both ends, by bolt 5 is screwed into the threaded hole corresponding to both, realize upper and lower fixed frame 6 is connected closely, the energy-gathering tube is firmly fixed in the predetermined position in hole, prevent energy-gathering tube from not being closed before blasting, the energy generated by explosion can be lost in the direction that is not expected, cause that energy-gathering effect is greatly discounted, affect blasting effect, when energy-gathering tube is placed into blasting hole, torque spring 12 provides suitable torsion, makes upper energy-gathering tube 1 and support frame 8 maintain relatively stable positional relationship, prevent from falling off due to its gravity when installing in mine hole, so that upper energy-gathering tube 1 can keep the posture, structure is complete, avoids falling risk, guarantees that device is smoothly installed to work site, maintains subsequent functional integrity, placing groove 10 is used for accurately placing blasting material such as explosive, follows engineering blasting design specification and roof pre-splitting demand, strictly controls material filling amount, layout mode, guarantees that initial distribution of blasting energy is scientific and reasonable.

[0025] In the embodiment of the utility model, please refer to Figure 1 And Figure 3 Upper energy-gathering tube 1 can keep the relative positional relationship with support frame 8 by torque spring 12, to prevent subsequent energy-gathering tube from falling off when installing in mine.

[0026] In the embodiment of the utility model, please refer to Figure 1 The outer surface of upper energy-gathering tube 1 is uniformly coated with wear-resistant coating along the axial direction, to reduce surface wear during handling, installation and operation, and to ensure that the energy-gathering tube device is stable and reliable in performance.

[0027] The working principle of the coal mine roof deep hole pre-splitting directional blasting energy-gathering pipe device is as follows: the upper energy-gathering pipe 1 and the lower energy-gathering pipe 2 are stably positioned by the cooperation of the upper fixing frame 3 and the lower fixing frame 6 at two ends, the bolt 5 is screwed into the corresponding threaded holes of the two, the upper and lower fixing frames 6 are tightly connected, the energy-gathering pipe is firmly fixed at the predetermined position in the hole, the energy-gathering pipe is prevented from being not closed before blasting, the energy generated by explosion is prevented from being dissipated in the unintended direction, the energy-gathering effect is greatly reduced, the blasting effect is affected, when the energy-gathering pipe is placed into the blasting hole, the torque spring 12 provides appropriate torque, the upper energy-gathering pipe 1 and the support frame 8 maintain a relatively stable positional relationship, the upper energy-gathering pipe 1 is prevented from falling off due to its own gravity during the installation of the mine hole, the upper energy-gathering pipe 1 can maintain a predetermined posture and complete structure, the risk of falling off is avoided, the device is smoothly installed to the operation site, the subsequent functional integrity is maintained, the placing groove 10 is used for accurately placing blasting materials such as explosives, the material filling amount and layout mode are strictly controlled according to the engineering blasting design specification and the roof pre-splitting requirement, and the initial distribution of blasting energy is scientific and reasonable.

[0028] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A coal mine roof deep hole presplitting directional blasting energy-gathering tube device, characterized in that, Include: Upper shaped charge tube (1); Support frame (8), the upper shaped charge tube (1) is connected with support frame (8) through torque spring (12) on both sides of middle; Upper fixed frame (3), the upper shaped charge tube (1) is provided with upper fixed frame (3) at both ends, both sides of the upper fixed frame (3) are fixedly connected with first fixed plate (4), and the middle of the first fixed plate (4) is provided with second threaded hole (14).

2. The coal mine roof deep hole pre-splitting directional blasting shaped charge tube device according to claim 1, characterized in that, The lower fixed frame (6) is provided below the upper fixed frame (3), both sides of the lower fixed frame (6) are fixedly connected with second fixed plate (7), and the inside of the second fixed plate (7) is provided with first threaded hole (9).

3. The coal mine roof deep hole pre-splitting directional blasting shaped charge tube device according to claim 1, characterized in that, The second threaded hole (14) is threadedly connected with the first threaded hole (9) through bolt (5).

4. The coal mine roof deep hole pre-splitting directional blasting shaped charge tube device according to any one of claims 1 or 2, characterized in that, The inside of the upper fixed frame (3) and the lower fixed frame (6) is fixedly connected with reset spring (13) in the middle, and the other end of the reset spring (13) is fixedly connected with clamping plate (11).

5. The coal mine roof deep hole pre-splitting directional blasting shaped charge tube device according to claim 1, characterized in that, The lower shaped charge tube (2) is provided below the upper shaped charge tube (1), and a plurality of placing grooves (10) are arranged in the lower shaped charge tube (2).

6. The coal mine roof deep hole pre-splitting directional blasting shaped charge tube device according to claim 1, characterized in that, The upper shaped charge tube (1) can be kept relative position relationship with the support frame (8) by the torque spring (12).

7. The coal mine roof deep hole pre-splitting directional blasting shaped charge tube device according to claim 1, characterized in that, The outer surface of the upper shaped charge tube (1) is uniformly coated with wear-resistant coating along the axial direction.

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