Blowout prevention device and drilling machine

Abstract

The utility model discloses a hole spraying prevention device and a drilling machine. The hole spraying prevention device comprises a laneway side sealing pipe (110); the collecting box (120) is communicated with the laneway side sealing pipe (110), and a first gas port (121) and a first water slag port (122) which are communicated with the interior of the collecting box (120) are formed in the collecting box (120); the extraction box (130) is provided with a second gas port (131) and a second water slag port (132), the second gas port (131) is communicated with the first gas port (121), and the second water slag port (132) is communicated with the first water slag port (122).

Description

Technical Field

[0001] The utility model relates to the field of coal mine safety equipment, in particular to an automatic blowout prevention device and a drilling machine used for underground drilling operations in coal mines. Background Art

[0002] During the underground drilling operation in coal mines, the dynamic phenomenon of gas mixed with coal and rock particles ejecting from the borehole often occurs, namely the blowout phenomenon. The ejected gas flows into the tunnel, causing gas to exceed the limit, which seriously threatens the safe production of coal mines. Existing blowout prevention devices are mostly manually operated, inefficient, and cannot effectively prevent the occurrence of blowout accidents, or are targeted at a specific drilling rig and are not universal. Summary of the invention

[0003] In response to the problems and needs raised above, this solution proposes a spray prevention hole device, which can achieve the above technical objectives and bring about many other technical effects by adopting the following technical features.

[0004] One purpose of the utility model is to provide an anti-spray hole device, comprising:

[0005] Lane side sealing pipe;

[0006] A collecting box is connected to the lane side sealing pipe, and the collecting box is provided with a first gas port and a first water slag port connected to the interior thereof;

[0007] The extraction box has a second gas port and a second water-slag port, wherein the second gas port is connected to the first gas port, and the second water-slag port is connected to the first water-slag port.

[0008] In this technical solution, a tunnel wall sealing tube sleeve is arranged on the drill bit of the drilling rig. When the drill bit extends out of the tunnel wall sealing tube for pre-drilling, the tunnel wall sealing tube follows the penetration of the drill bit into the coal wall and stops against the coal wall. During the advancement of the drill bit, if gas and slag are sprayed out, they will be collected into the collection box through the tunnel wall sealing tube. The gas in the collection box flows to the second gas port through the first gas port and enters the extraction box. The slag in the collection box flows to the second slag port through the first slag port and enters the extraction box. The gas and slag in the extraction box are separated under the action of gravity. The device has reasonable design, convenient installation and reliable function, realizes drilling and extraction during drilling rig construction, reduces the labor intensity of workers, improves extraction efficiency, and effectively guarantees safe production underground in coal mines.

[0009] In addition, the anti-spray hole device according to the utility model can also have the following technical features:

[0010] In an example of the utility model, a gas discharge port and a water-slag discharge port are also provided on the extraction box, wherein the gas discharge port is used to discharge gas, and the water-slag discharge port is used to discharge water-slag.

[0011] In one example of the present invention, the gas discharge port is arranged near the upper end of the extraction box, and the water slag discharge port is arranged at the lower end of the extraction box.

[0012] In one example of the present invention, it also includes: a telescopic component,

[0013] One end of the driving device is connected to the drilling machine, and the other end of the driving device is connected to the tunnel side sealing tube, and is configured to drive the tunnel side sealing tube to perform telescopic movement.

[0014] In one example of the present invention, it also includes: a shear type rubber spring,

[0015] One end of the spring is fixedly connected to the lane sealing tube, and the other end of the spring is fixedly connected to the collection box; wherein the shear type rubber spring is provided with a through hole to connect the lane sealing tube and the collection box.

[0016] In one example of the present invention, the telescopic assembly includes one of a hydraulic cylinder, a pneumatic cylinder and an electric push rod.

[0017] In one example of the present invention, it further includes: an elastic member,

[0018] It is connected to the lane side sealing tube, the telescopic assembly is connected to the elastic member, and is configured so that under the driving action of the telescopic assembly, the elastic member generates elastic force to make the lane side sealing tube adaptively stop against the coal wall.

[0019] In an example of the present invention, the elastic member includes one of a spring, a spring sheet and a rubber member.

[0020] In one example of the utility model, when the elastic member is a spring, the spring is sleeved on the outer peripheral wall of the lane sealing tube, and one end of the spring is fixedly connected to the lane sealing tube, and the other end of the spring is fixedly connected to the telescopic assembly.

[0021] In one example of the present invention, it further includes: a mounting bracket,

[0022] It is fixedly connected to the drilling rig near the drill bit, and the telescopic assembly is fixedly connected to the mounting bracket.

[0023] Another object of the utility model is to provide a drilling rig, comprising the anti-blowout hole device as described above, wherein the anti-blowout hole device is connected to the drill bit of the drilling rig, wherein the drill bit passes through the collection box and the lane side sealing pipe in sequence.

[0024] The following will provide a more detailed description of the best embodiment of the present invention in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention are briefly introduced below. The drawings are only used to show some embodiments of the present invention, but not to limit all embodiments of the present invention thereto.

[0026] Figure 1 It is a structural schematic diagram of the anti-spray hole device according to an embodiment of the utility model;

[0027] Figure 2 It is a schematic diagram of the connection structure between the lane side sealing pipe and the collection box according to an embodiment of the utility model;

[0028] Figure 3 It is a structural schematic diagram of a pumping box according to an embodiment of the utility model;

[0029] Figure 4 The figure is a schematic diagram of the connection structure between the drill bit and the anti-blowout hole device according to an embodiment of the utility model.

[0030] List of reference numerals:

[0031] Anti-spray hole device 100;

[0032] Lane side sealing pipe 110;

[0033] Collection box 120;

[0034] First gas port 121;

[0035] First water slag port 122;

[0036] Extraction box 130;

[0037] Second gas port 131;

[0038] The second water slag port 132;

[0039] Gas discharge port 133;

[0040] Water slag discharge port 134;

[0041] Telescopic assembly 140;

[0042] Shear type rubber spring 150;

[0043] Mounting bracket 160;

[0044] Gas collection pipeline 170;

[0045] Water slag collection pipeline 180;

[0046] Gas extraction pipeline 190;

[0047] Drill bit 200. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in combination with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0049] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] According to a first aspect of the utility model, a spray prevention hole device 100 is provided. Figures 1 to 4 As shown, including:

[0051] Lane side sealing pipe 110;

[0052] A collecting box 120 is connected to the tunnel sealing pipe 110, and a first gas port 121 and a first water-slag port 122 connected to the interior of the collecting box 120 are provided on the collecting box 120;

[0053] The extraction box 130 has a second gas port 131 and a second water-slag port 132 , wherein the second gas port 131 is connected to the first gas port 121 , and the second water-slag port 132 is connected to the first water-slag port 122 .

[0054] Specifically, the tunnel wall sealing tube 110 is sleeved on the drill bit 200 of the drilling rig. When the drill bit 200 extends from the tunnel wall sealing tube 110 for pre-drilling, the tunnel wall sealing tube 110 follows the penetration of the drill bit 200 into the coal wall and stops against the coal wall. During the advancement of the drill bit 200, if gas and slag are sprayed out, they will be collected into the collection box 120 through the tunnel wall sealing tube 110. The gas in the collection box 120 flows to the second gas port 131 through the first gas port 121 and enters the extraction box 130. The slag in the collection box 120 flows to the second slag port 132 through the first slag port 122 and enters the extraction box 130. The gas and slag in the extraction box 130 are separated under the action of gravity. The device is reasonably designed, easy to install, and reliable in function. It realizes drilling and extraction during drilling rig construction, reduces the labor intensity of workers, improves extraction efficiency, and effectively guarantees safe production underground in coal mines.

[0055] It should be noted that the second gas port 131 is connected to the first gas port 121 through a gas collection pipe 170, and the second water-slag port 132 is connected to the first water-slag port 122 through a water-slag collection pipe 180; gas and water-slag are separated under the action of gravity, gas is extracted from the top by the extraction system through a gas extraction pipe 190 installed at the gas discharge port 133, and water-slag is discharged from the bottom through the water-slag discharge port 134. When encountering a gas nozzle, the gas electric lock is actuated, and the drilling rig is powered off, thereby effectively preventing gas from exceeding the limit.

[0056] In one example of the present invention, the extraction box 130 is further provided with a gas discharge port 133 and a water-slag discharge port 134, wherein the gas discharge port 133 is used to discharge gas, and the water-slag discharge port 134 is used to discharge water-slag;

[0057] The gas and water slag in the pumping box are separated under the action of gravity. The gas is extracted from the top through the gas discharge port 133 by the extraction system, and the water slag is discharged from the bottom through the water slag discharge port 134. The gas discharge port 133 and the water slag discharge port 134 can be set to facilitate the discharge of gas and water slag.

[0058] In one example of the present invention, the gas discharge port 133 is disposed near the upper end of the extraction box 130 , and the water slag discharge port 134 is disposed at the lower end of the extraction box 130 ;

[0059] Since the gas is a gas, when it is gathered into the pumping box together with the water slag, the gas and the water slag are separated and gathered at the upper end of the water slag in the pumping box. Then the gas can be pumped out through the gas discharge port 133 through the extraction system. The water slag is a liquid-solid mixture. Setting the water slag discharge port 134 at the lower end of the extraction box 130 helps to discharge the water slag cleanly.

[0060] In one example of the present invention, it further includes: a telescopic component 140,

[0061] One end of the drill is connected to the drilling machine, and the other end of the drill is connected to the tunnel sealing tube 110, and is configured to drive the tunnel sealing tube 110 to perform telescopic movement;

[0062] That is to say, as the drill bit 200 drills into the coal seam, the side sealing tube 110 mounted on the outside of the drill bit 200 moves synchronously with the drill bit 200 under the drive of the telescopic assembly 140, so that the side sealing tube 110 is always in close contact with the coal wall, thereby avoiding the formation of a gap between the side sealing tube 110 and the coal wall, which would cause leakage of gas and slag.

[0063] In one example of the present invention, it further includes: a shear type rubber spring 150,

[0064] One end thereof is fixedly connected to the lane sealing tube 110 , and the other end thereof is fixedly connected to the collection box 120 ; wherein the shear type rubber spring 150 is provided with a through hole to connect the lane sealing tube 110 and the collection box 120 .

[0065] By arranging a shear type rubber spring 150 between the tunnel side sealing tube 110 and the collecting box 120, on the one hand, a flexible connection between the tunnel side sealing tube 110 and the collecting tube can be achieved, and at the same time, the impact force between the tunnel side sealing tube 110 and the coal wall can be buffered; on the other hand, by opening a through hole in the shear type rubber spring 150, it is convenient for the drill bit 200 to pass through the collecting box 120, the shear type rubber spring 150 and the tunnel side sealing tube 110 in sequence.

[0066] In one example of the present invention, the telescopic assembly 140 includes one of a hydraulic cylinder, a pneumatic cylinder, and an electric push rod;

[0067] For example, the telescopic assembly 140 selects a hydraulic cylinder, and the hydraulic cylinder is connected to the hydraulic system of the drilling rig through a hydraulic oil pipe, so as to share the hydraulic system with the drilling rig to facilitate the control of the telescopic assembly 140.

[0068] In one example of the present invention, it further includes: an elastic member,

[0069] It is connected to the tunnel side sealing tube 110, and the telescopic assembly 140 is connected to the elastic member, and is configured so that under the driving action of the telescopic assembly 140, the elastic member generates elastic force so that the tunnel side sealing tube 110 adaptively stops against the coal wall;

[0070] By setting up elastic parts, the rigid connection between the tunnel sealing tube 110 and the coal wall can be converted into a flexible connection, thereby effectively buffering the impact force between the coal wall and the tunnel sealing tube 110 during the drilling process of the drill bit 200, and enabling the tunnel sealing tube 110 to always be in contact with the coal wall.

[0071] In one example of the present invention, the elastic member includes one of a spring, a spring sheet and a rubber member;

[0072] For example, the elastic member is a spring, and further preferably, the compression spring is a shear spring.

[0073] The three types of elastic members mentioned above can all achieve flexible contact between the roadway sealing pipe 110 and the coal wall.

[0074] In an example of the present invention, when the elastic member is a spring, the spring is sleeved on the outer peripheral wall of the lane sealing tube 110, and one end of the spring is fixedly connected to the lane sealing tube 110, and the other end of the spring is fixedly connected to the telescopic assembly 140;

[0075] For example, when the spring is a compression spring, a limit plate is fixed on the outer peripheral wall of the lane sealing tube 110, one end of the compression spring is welded to the limit plate, and the other end is welded to the output end of the telescopic assembly 140;

[0076] For example, the limiting plate extends along the circumferential direction of the lane side sealing tube 110 in a direction away from the lane side sealing tube 110;

[0077] By setting a limit plate, the compression spring mounted on the tunnel side sealing tube 110 can be limited, so that when the telescopic assembly 140 drives the elastic member, the tunnel side sealing tube 110 and the coal wall are in contact. When an impact force is generated between the tunnel side sealing tube 110 and the coal wall, the impact force is transmitted from the tunnel side sealing tube 110 to the elastic member, so that the elastic member is deformed to buffer the impact force.

[0078] In one example of the present invention, it further includes: a mounting bracket 160,

[0079] It is fixedly connected to the drilling rig near the drill bit 200, and the telescopic assembly 140 is fixedly connected to the mounting bracket 160;

[0080] For example, the mounting bracket 160 can be fixedly connected to the drilling rig by fasteners, and one end of the telescopic assembly 140 can also be fixedly connected to the mounting bracket 160 by fasteners; by providing the mounting bracket 160, the installation of the anti-blowout hole device 100 can be facilitated.

[0081] According to a drilling rig of the second aspect of the utility model, Figure 4 As shown, it includes the anti-blowout hole device 100 as described above, and the anti-blowout hole device 100 is connected to the drill bit 200 of the drilling rig, wherein the drill bit 200 is penetrated by the collecting box 120, the shearing rubber spring 150 and the lane side sealing tube 110 in sequence;

[0082] During the pre-drilling process when the drill bit 200 extends out of the tunnel sealing tube 110, the tunnel sealing tube 110 follows the penetration of the drill bit 200 into the coal wall and stops against the coal wall. During the advancement of the drill bit 200, if gas and slag are sprayed out, they will be collected into the collection box 120 through the tunnel sealing tube 110. The gas in the collection box 120 flows to the second gas port 131 through the first gas port 121 and enters the extraction box 130. The slag in the collection box 120 flows to the second slag port 132 through the first slag port 122 and enters the extraction box 130. The gas and slag in the extraction box 130 are separated under the action of gravity. The device has reasonable design, convenient installation, reliable function, and realizes drilling and extraction during drilling rig construction, reduces the labor intensity of workers, improves extraction efficiency, and effectively guarantees safe production in coal mines.

[0083] The exemplary implementation of the anti-spray hole device 100 proposed in the present invention is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present invention can be combined in various ways without exceeding the protection scope of the present invention, which is determined by the attached claims.

Claims

1. A spray prevention hole device, characterized in that: include: Lane side sealing tube (110); A collecting box (120) is connected to the tunnel wall sealing pipe (110), and the collecting box (120) is provided with a first gas port (121) and a first water slag port (122) connected to the interior thereof; The extraction box (130) has a second gas port (131) and a second water-slag port (132), wherein the second gas port (131) is connected to the first gas port (121), and the second water-slag port (132) is connected to the first water-slag port (122); The telescopic assembly (140) has one end connected to the drilling machine and the other end connected to the tunnel side sealing tube (110), and is configured to drive the tunnel side sealing tube (110) to perform telescopic movement.

2. The anti-spray hole device according to claim 1, characterized in that: The extraction box (130) is also provided with a gas discharge port (133) and a water-slag discharge port (134); the gas discharge port (133) is used to discharge gas, and the water-slag discharge port (134) is used to discharge water-slag.

3. The anti-spray hole device according to claim 2, characterized in that: The gas discharge port (133) is arranged close to the upper end of the extraction box (130), and the water slag discharge port (134) is arranged at the lower end of the extraction box (130).

4. The anti-spray hole device according to claim 1, characterized in that: Also included: a shear type rubber spring (150), One end thereof is fixedly connected to the lane side sealing tube (110), and the other end thereof is fixedly connected to the collection box (120); wherein the shear type rubber spring (150) is provided with a through hole to connect the lane side sealing tube (110) and the collection box (120).

5. The anti-spray hole device according to claim 1, characterized in that: The telescopic assembly (140) comprises one of a hydraulic cylinder, a pneumatic cylinder and an electric push rod.

6. The anti-spray hole device according to claim 1, characterized in that: Also includes: Elastic parts, One end of the elastic member is connected to the tunnel side sealing tube (110), and the other end of the elastic member is connected to the telescopic assembly (140). The elastic member is configured such that, under the driving action of the telescopic assembly (140), the elastic member generates an elastic force so that the tunnel side sealing tube (110) adaptively stops against the coal wall.

7. The anti-spray hole device according to claim 6, characterized in that: The elastic member includes one of a spring, a spring sheet and a rubber member.

8. The anti-spray hole device according to claim 7, characterized in that: When the elastic member is a spring, the spring is sleeved on the outer peripheral wall of the lane side sealing tube (110), and one end of the spring is fixedly connected to the lane side sealing tube (110), and the other end of the spring is fixedly connected to the telescopic assembly (140).

9. A drilling rig, characterized in that: The anti-blowout hole device comprises the anti-blowout hole device as claimed in any one of claims 1 to 8, wherein the anti-blowout hole device is connected to the drill bit (200) of the drilling rig, wherein the drill bit (200) passes through the collection box (120) and the lane side sealing pipe (110) in sequence.

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