Movable wet-type blowout hole and overrun prevention equipment

Abstract

The utility model discloses a movable wet-type blowout hole and overrun prevention device, which relates to the technical field of gas blowout hole and overrun prevention and comprises a bottom plate, a fixing frame connected onto the bottom plate, a drilling machine connected onto the fixing frame, a drilling rod rotatably arranged on the drilling machine, a blowout prevention cover slidably arranged on the fixing frame, the drilling rod penetrates through the blowout prevention cover, and the drilling rod penetrates through the blowout prevention cover. A primary gas extraction structure is arranged on the blowout prevention cover, the lower end of the blowout prevention cover is communicated with a slag collection box through a slag outlet pipe, the slag collection box is fixed to a bottom plate, a water seal tank is arranged on the bottom plate and communicated with the bottom of the slag collection box, a secondary gas extraction structure is arranged on the slag collection box, a coal rock slag cleaning structure is arranged on the water seal tank, and a moving assembly is arranged on the bottom plate. By arranging the coal and rock slag cleaning structure, the coal and rock slag accumulated at the bottom of the guide slope is continuously cleaned, and the situation that a large amount of coal and rock slag is accumulated in the slag collecting box, air fluidity is reduced, and gas extraction is affected is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas jetting hole and overrun prevention, and particularly relates to a movable wet type jetting hole and overrun prevention equipment. BACKGROUND

[0002] In the process of coal seam drilling construction, a large amount of gas is prone to be jetted out, and if the jetted gas is not treated in time, it will cause suffocation of personnel and explosion risk after gas content overrun.

[0003] The patent document with the announcement number CN217950301U discloses a dry drilling jetting prevention and dust removal device, which seals and removes the gas escaping from the deslagging pipe by the water sealing mode, effectively reducing the gas leakage risk, but the coal rock slag is prone to accumulate at the deslagging opening in the device, which is inconvenient to clean, and the excessive accumulation of the coal rock slag occupies the internal space of the jetting prevention and dust removal box, affecting the gas flow and being not conducive to the smooth removal of the gas. UTILITY MODEL CONTENT

[0004] The utility model aims at the deficiency of the prior art, and provides a movable wet type jetting hole and overrun prevention equipment, which can clean the coal rock slag in time and prevent the coal rock slag from accumulating to affect the removal of the gas.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A movable wet type jetting hole and overrun prevention equipment, comprising a bottom plate, a fixing frame connected to the bottom plate, a drilling machine connected to the fixing frame, a drill rod rotatably arranged on the drilling machine, a jetting prevention cover slidably arranged on the fixing frame, the drill rod penetrating through the jetting prevention cover, a primary gas removal structure arranged on the jetting prevention cover, a deslagging box connected to the bottom plate through a deslagging pipe at the lower end of the jetting prevention cover, the deslagging box being fixed to the bottom plate, a water sealing groove arranged on the bottom plate, the water sealing groove being in communication with the bottom of the deslagging box, a secondary gas removal structure arranged on the deslagging box, a coal rock slag cleaning structure arranged on the water sealing groove, and a moving assembly arranged on the bottom plate.

[0007] On the basis of the above-mentioned technical scheme, the utility model further provides the following optional technical schemes:

[0008] In an optional scheme, two guide rails are symmetrically connected to the fixing frame, a moving plate is slidably connected to the guide rails, an extension rod is connected to the fixing frame, the output end of the extension rod is connected to the moving plate, and the moving plate is connected to the jetting prevention cover.

[0009] In an alternative: the primary gas extraction structure includes a first gas extraction port arranged on the blowout preventer and communicated with the gas extraction pipeline, the first gas extraction port is communicated with the inside of the blowout preventer, a plurality of spray heads are arranged in the blowout preventer, and a sealing pad is connected to the side of the blowout preventer away from the drilling machine.

[0010] In an alternative: the secondary gas extraction structure includes a second gas extraction port arranged on the slag collecting box and communicated with the gas extraction pipeline, the second gas extraction port is communicated with the inside of the slag collecting box, and the gas pressure balancing assembly is arranged on the slag collecting box.

[0011] In an alternative: the gas pressure balancing assembly includes a gas supplement port arranged on the slag collecting box, a pressing plate riveted on the gas supplement port, and a rubber sheet arranged between the gas supplement port and the pressing plate.

[0012] In an alternative: the inside bottom of the slag collecting box is provided with a guide slope, the coal and rock slag cleaning structure includes a first roller rotatably arranged in a water seal groove, a support connected to the water seal groove, a second roller rotatably connected to the support, a conveying belt arranged between the first roller and the second roller, conveying buckets equidistantly arranged on the conveying belt, and a conveying motor connected to the second roller.

[0013] In an alternative: the conveying bucket is provided with a water leakage hole.

[0014] In an alternative: the moving assembly includes four self-locking universal wheels connected to the lower surface of the bottom plate in a rectangular distribution, and a handrail connected to the bottom plate.

[0015] Compared with the prior art, the utility model has the advantages as follows:

[0016] 1、The coal and rock slag cleaning structure is arranged to continuously clean the coal and rock slag accumulated at the bottom of the guide slope, so that the air flowability is not affected by the large amount of coal and rock slag accumulated in the slag collecting box.

[0017] 2、The gas pressure balancing assembly is arranged to make the air enter the slag collecting box and carry away the gas accumulated in the slag collecting box without leaking the gas, so that the effect of the secondary gas extraction structure on gas extraction is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses a three-dimensional structure schematic diagram Figure 1 .

[0019] Figure 2 The utility model discloses a three-dimensional structure schematic diagram Figure 2 .

[0020] Figure 3 It is the slag collecting box distribution state schematic drawing of the utility model.

[0021] Figure 4 For the utility model Figure 3 The partial enlarged view of A.

[0022] The sign of the drawing is annotated: 101, fixed frame; 102, drilling machine; 103, drill rod; 104, blowout preventer; 105, deslagging pipe; 106, deslagging box; 107, water seal groove; 108, bottom plate; 109, self-locking universal wheel; 110, handrail; 201, guide rail; 202, moving plate; 203, telescopic rod; 204, first air extraction port; 205, spray head; 206, sealing gasket; 301, second air extraction port; 302, air supplement port; 303, rubber sheet; 304, sheet pressing; 401, guide slope; 402, first roller; 403, support; 404, second roller; 405, conveying belt; 406, conveying hopper; 407, conveying motor. DETAILED DESCRIPTION

[0023] In order to make the utility model's purpose, technical scheme and advantage more clearly, the following is in combination with the drawing and example, and the utility model is further detailed.

[0024] In one embodiment, as Figures 1-4 shown, a movable wet-type blowout prevention hole and overrun device, including bottom plate 108, the fixed frame 101 is connected on the bottom plate 108, the drilling machine 102 is connected on the fixed frame 101, the drill rod 103 is rotationally arranged on the drilling machine 102, the blowout preventer 104 is slidingly arranged on the fixed frame 101, the drill rod 103 penetrates the blowout preventer 104, the blowout preventer 104 is provided with a primary gas extraction structure, the blowout preventer 104 is communicated with the deslagging box 106 through the deslagging pipe 105 at the lower end, the deslagging box 106 is fixed on the bottom plate 108, the water seal groove 107 is arranged on the bottom plate 108, the water seal groove 107 is communicated with the bottom of the deslagging box 106, the deslagging box 106 is provided with a secondary gas extraction structure, the coal and rock slag cleaning structure is arranged on the water seal groove 107, and the moving assembly is arranged on the bottom plate 108.

[0025] In the embodiment, the bottom plate 108 is moved by the moving assembly, the whole device is moved, and the blowout preventer 104 is attached to the drilling surface when drilling construction, the gas sprayed from the drilling hole is extracted by the primary gas extraction structure first, the coal and rock slag enters the deslagging box 106 through the blowout preventer 104 and the deslagging pipe 105, and part of the gas also enters the deslagging box 106 through the deslagging pipe 105 and is extracted by the secondary gas extraction structure, so that the gas sprayed is treated in time, the overrun is prevented, the coal and rock slag cleaning structure cleans the coal and rock slag accumulated in the deslagging box 106 in time, and the effect of gas extraction is not affected by excessive accumulation of coal and rock slag.

[0026] In one embodiment, as Figure 2As shown, the fixed frame 101 is symmetrically connected with two guide rails 201, the guide rails 201 are slidingly connected with a moving plate 202, the fixed frame 101 is connected with a telescopic rod 203, the output end of the telescopic rod 203 is connected with the moving plate 202, the moving plate 202 is connected with the blowout preventer 104, the telescopic rod 203 is elongated to drive the moving plate 202 to move away from the drilling machine 102, and the moving plate 202 drives the blowout preventer 104 to move close to the drilling face.

[0027] In one embodiment, as shown in Figure 1 The primary gas extraction structure includes a first gas extraction port 204 arranged on the blowout preventer 104 and communicated with the gas extraction pipeline, the first gas extraction port 204 is communicated with the inside of the blowout preventer 104, a plurality of spray heads 205 are arranged in the blowout preventer 104, a sealing gasket 206 is connected to the side of the blowout preventer 104 away from the drilling machine 102, the spray heads 205 spray liquid to reduce the dust floating in the air generated by the drilling, the gas extraction pipeline extracts the gas in the inside of the blowout preventer 104 through the first gas extraction port 204, and the sealing gasket 206 improves the sealing performance of the blowout preventer 104 to reduce gas leakage and dust escape.

[0028] In one embodiment, as shown in Figure 1 , Figure 3 and Figure 4 The secondary gas extraction structure includes a second gas extraction port 301 arranged on the slag collecting box 106 and communicated with the gas extraction pipeline, the second gas extraction port 301 is communicated with the inside of the slag collecting box 106, and the slag collecting box 106 is provided with a gas pressure balancing assembly, the gas pressure balancing assembly includes a gas supplement port 302 arranged on the slag collecting box 106, a pressing plate 304 is riveted on the gas supplement port 302, a rubber sheet 303 is arranged between the gas supplement port 302 and the pressing plate 304, the gas extraction pipeline extracts the gas escaping into the slag collecting box 106 through the second gas extraction port 301, when the inside of the slag collecting box 106 generates negative pressure, the external air pressure acts on the rubber sheet 303, the rubber sheet 303 deforms, the external air enters the inside of the slag collecting box 106, compensates the gas pressure in the slag collecting box 106 and carries away the gas in the slag collecting box 106, when the gas in the drilling hole is sprayed out in a large amount, the gas pressure in the inside of the slag collecting box 106 is higher than the outside, the rubber sheet 303 tightly seals the gas supplement port 302 to prevent the gas from leaking through the gas supplement port 302.

[0029] In one embodiment, as shown in Figure 1 and Figure 3As shown, the bottom of the slag collecting box 106 is provided with a guide slope 401, the coal and rock slag cleaning structure includes a first roller 402 rotatably arranged in the water seal groove 107, the water seal groove 107 is connected with a support 403, the support 403 is rotatably connected with a second roller 404, the first roller 402 and the second roller 404 are provided with a conveying belt 405, the conveying belt 405 is equidistantly provided with conveying hoppers 406, the support 403 is connected with a conveying motor 407, the output end of the conveying motor 407 is connected with the second roller 404, the conveying hoppers 406 are provided with water leakage holes, the coal and rock slag is accumulated at the bottom of the guide slope 401, the conveying motor 407 drives the second roller 404 to rotate, the second roller 404 drives the conveying belt 405 to rotate, and the conveying belt 405 drives the conveying hoppers 406 to continuously clean the coal and rock slag accumulated at the bottom of the guide slope 401.

[0030] In one embodiment, as shown in the drawings, Figure 2 The moving assembly includes four self-locking universal wheels 109 connected in a rectangular distribution on the lower surface of the bottom plate 108, the bottom plate 108 is connected with a handrail 110, the self-locking universal wheels 109 are unlocked during movement and locked during work, the bottom plate 108 is pushed through the handrail 110 to drive the entire device to move.

[0031] The above embodiment discloses a movable wet-type blowout prevention hole and overrunning device, wherein, during drilling construction, the telescopic rod 203 is elongated to drive the moving plate 202 to move away from the drilling machine 102, the moving plate 202 drives the blowout prevention cover 104 to move close to the drilling face, the sealing gasket 206 is in contact with the drilling face to reduce gas leakage and dust emission, the spray head 205 sprays liquid to reduce dust floating in the air generated by drilling, the gas extraction pipeline extracts the gas inside the blowout prevention cover 104 through the first gas extraction port 204, the coal and rock slag generated by drilling enters the slag collecting box 106 through the blowout prevention cover 104 and the slag outlet pipe 105, and part of the gas also enters the slag collecting box 106 through the slag outlet pipe 105, the gas extracted into the slag collecting box 106 is extracted by the gas extraction pipeline through the second gas extraction port 301, when the internal pressure of the slag collecting box 106 is negative, the external air pressure acts on the rubber sheet 303, the rubber sheet 303 deforms, the external air enters the slag collecting box 106, compensates the internal pressure of the slag collecting box 106, and carries away the gas in the slag collecting box 106 at the same time, when the gas emitted from the drilling site is large, the internal pressure of the slag collecting box 106 is higher than the external pressure, the rubber sheet 303 tightly seals the air inlet 302 to prevent the gas from leaking through the air inlet 302, the coal and rock slag is accumulated at the bottom of the guide slope 401, the conveying motor 407 drives the second roller 404 to rotate, the second roller 404 drives the conveying belt 405 to rotate, and the conveying belt 405 drives the conveying hoppers 406 to continuously clean the coal and rock slag accumulated at the bottom of the guide slope 401, the self-locking universal wheels 109 are unlocked during movement and locked during work, the bottom plate 108 is pushed through the handrail 110 to drive the entire device to move.

[0032] The above description is only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A mobile wet blowout preventer and overrunning device, characterized in that, The utility model relates to a coal rock slag cleaning device, including the bottom plate (108), be connected with the fixed frame (101) on the bottom plate (108), be connected with the drilling machine (102) on the fixed frame (101), be rotatably equipped with the drill rod (103) on the drilling machine (102), be slidably equipped with the blowout preventer (104) on the fixed frame (101), the drill rod (103) penetrates blowout preventer (104), be equipped with primary gas extraction structure on blowout preventer (104), the lower end of blowout preventer (104) is connected with the residue collecting box (106) through the residue pipe (105), the residue collecting box (106) is fixed on the bottom plate (108), be equipped with water seal groove (107) on the bottom plate (108), water seal groove (107) is connected with the residue collecting box (106) bottom, be equipped with secondary gas extraction structure on the residue collecting box (106), be equipped with coal rock slag cleaning structure on water seal groove (107), be equipped with movement assembly on the bottom plate (108).

2. A device for movable wet blowout preventer and overrunning according to claim 1, characterized in that, Two guide rails (201) are symmetrically connected on the fixed frame (101), a moving plate (202) is slidably connected on the guide rail (201), a telescopic rod (203) is connected on the fixed frame (101), the output end of the telescopic rod (203) is connected on the moving plate (202), the moving plate (202) is connected with the blowout preventer (104).

3. The apparatus of claim 1, wherein, The primary gas extraction structure includes a first gas suction port (204) disposed on the blowout preventer (104) and connected with a gas suction pipeline, the first gas suction port (204) is in communication with the inside of the blowout preventer (104), a plurality of spray heads (205) are arranged in the blowout preventer (104), and a sealing gasket (206) is connected to the side of the blowout preventer (104) away from the drilling machine (102).

4. The apparatus of claim 1, wherein, The secondary gas extraction structure includes a second gas suction port (301) disposed on the residue collecting box (106) and connected with a gas suction pipeline, the second gas suction port (301) is in communication with the inside of the residue collecting box (106), and a gas pressure balancing assembly is arranged on the residue collecting box (106).

5. A device for mobile wet borehole and overrunning according to claim 4, characterized in that, The gas pressure balancing assembly includes a gas supplement port (302) disposed on the residue collecting box (106), a pressing plate (304) is riveted on the gas supplement port (302), and a rubber sheet (303) is arranged between the gas supplement port (302) and the pressing plate (304).

6. The apparatus of claim 1, wherein, A guide inclined surface (401) is arranged on the inner bottom of the residue collecting box (106), the coal rock slag cleaning structure includes a first roller (402) rotatably arranged in the water seal groove (107), a support (403) is connected to the water seal groove (107), a second roller (404) is rotatably connected to the support (403), a conveying belt (405) is arranged between the first roller (402) and the second roller (404), conveying buckets (406) are equidistantly arranged on the conveying belt (405), a conveying motor (407) is connected to the support (403), and the output end of the conveying motor (407) is connected to the second roller (404).

7. A device for mobile wet borehole and overrunning according to claim 6, characterized in that, Water leakage holes are arranged on the conveying buckets (406).

8. The apparatus of claim 1, wherein, The mobile assembly comprises four self-locking universal wheels (109) connected in a rectangular distribution on the lower surface of a bottom plate (108) to which handrails (110) are connected.

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