Three-extraction type orifice dust removal blowout preventer

Abstract

The utility model relates to the technical field of gas extraction auxiliary devices, in particular to a three-extraction type orifice dust removal and blowout prevention device which comprises a drill rod and a blowout prevention mechanism, the blowout prevention mechanism comprises a sleeve, a water injection pipe, a mounting flange, a separation box and a dust falling assembly, and a baffle arranged above the separation box is provided with two through holes used for being connected with an external power pipeline. The drill rod drives the locking plate to rotate through the rotating disc after being used, so that dust and dust are stopped from escaping, the design can achieve the manual stopping effect, and the problems that dust particles in a dust falling pipe are not convenient to stop in the flowing process, and dust still leaks after a worker takes out a box body from a coal mine hole are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of gas extraction auxiliary devices, and in particular to a three-extraction orifice dust removal and blowout prevention device. Background Technology

[0002] Most coal mines in my country are gas mines, and gas drainage is the fundamental method for preventing and controlling gas. During the construction of gas boreholes, drilling is difficult and hole collapse is serious. During the construction of boreholes, the amount of slag discharged is large and the amount of gas gushing out of the borehole is large, which can easily cause gas exceeding the limit accident and generate a large amount of dust, affecting the standardization quality.

[0003] In the prior art, patent (CN209040781U) proposes a dust removal and blowout prevention device for gas borehole openings, including a box body and a cylinder body. The box body is a hollow structure formed by the box walls, with a negative pressure port connector at the top and a dust collection pipe at the bottom. A drill rod inlet is located on the first side, and a drill rod outlet is located on the second side opposite to the first side. A pulverized coal baffle is installed inside the box body. An annular sealing gasket is installed on the drill rod inlet. The drill rod outlet is connected to the end face of the cylinder body. The pulverized coal baffle is located between the negative pressure port connector and the drill rod inlet and has sieve holes with a diameter smaller than that of pulverized coal. The cylinder body is a hollow structure formed by the cylinder walls, with an inner diameter larger than that of the drill rod. This device can realize that gas enters the extraction system from the borehole opening and pulverized coal falls at a fixed point in the sealed channel, effectively reducing the dust concentration in the drilling area, avoiding gas accidents, and providing safety protection for the health of employees and the safety of the mine.

[0004] However, in the aforementioned existing technology, it is not easy to stop the dust particles in the dust collection pipe during the flow process, and the dust will still leak out after the staff removes the box from the coal mine hole. Utility Model Content

[0005] The purpose of this utility model is to provide a three-extraction orifice dust removal and anti-spray device, which solves the problem in the prior art that it is not easy to stop the dust particles in the dust pipe during the flow process, and the dust will still leak out after the workers take the box out of the coal mine hole.

[0006] To achieve the above objectives, this utility model provides a three-extraction orifice dust removal and blowout prevention device, including a drill rod and a blowout prevention mechanism. The blowout prevention mechanism includes a sleeve, a water injection pipe, a mounting flange, a separation box, and a dust collection assembly. The dust collection assembly is fixedly connected to the separation box and located below the separation box. The separation box is rotatably connected to the drill rod and located around the drill rod. The mounting flange is fixedly connected to the sleeve and located at one end of the sleeve. The water injection pipe is fixedly connected to the sleeve and located above the sleeve. The sleeve is rotatably connected to the drill rod and located around the drill rod.

[0007] The separation box includes a box body, a baffle, and an inlet plate. The inlet plate is fixedly connected to the box body and located on one side of the box body. The baffle is fixedly connected to the box body and located above the box body. The box body is rotatably connected to the drill rod and located around the drill rod.

[0008] The dust collection assembly includes a dust collection pipe, two turntables, and a locking plate. The locking plate is fixedly connected to the two turntables and is located inside the two turntables. The two turntables are rotatably connected to the dust collection pipe and are located on both sides of the dust collection pipe. The dust collection pipe is fixedly connected to the housing and is located below the housing.

[0009] The drill rod includes a rod body and a drill bit. The drill bit is fixedly connected to the rod body and located at one end of the rod body. The rod body is rotatably connected to the casing and located inside the casing.

[0010] This utility model discloses a three-extraction orifice dust removal and anti-spray device. The baffle above the separation box has two through holes for connecting to an external power pipeline. After the drill rod is used, it drives the locking plate to rotate through the turntable, thereby stopping the escape of dust and powder. This design can achieve manual stopping and solves the problem that it is not easy to stop the dust particles in the dust discharge pipe during the flow process, and that dust will still leak out after the workers take the box out of the coal mine hole. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0012] Figure 1 This is a schematic diagram of the overall structure of a three-extraction orifice dust removal and anti-spray device according to this utility model.

[0013] Figure 2 This is a top view of a three-extraction orifice dust removal and anti-spray device according to this utility model.

[0014] Figure 3 This is a left view of a three-extraction orifice dust removal and anti-spray device according to this utility model.

[0015] Figure 4 This is the utility model Figure 3 A sectional view along line AA.

[0016] 101-Drill pipe, 102-Blowout preventer, 103-Casing, 104-Water injection pipe, 105-Mounting flange, 106-Separation box, 107-Dust collection assembly, 108-Box body, 109-Baffle, 110-Inlet plate, 111-Dust collection pipe, 112-Rotator, 113-Locking plate, 114-Rod body, 115-Drill bit. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] Please see Figures 1-4 ,in Figure 1 This is a schematic diagram of the overall structure of a three-extraction orifice dust removal and anti-spray device according to this utility model. Figure 2 This is a top view of a three-extraction orifice dust removal and anti-spray device according to this utility model. Figure 3 This is a left view of a three-extraction orifice dust removal and anti-spray device according to this utility model. Figure 4 This is the utility model Figure 3 A sectional view along line AA.

[0019] This utility model provides a three-extraction orifice dust removal and blowout prevention device, including a drill rod 101 and a blowout prevention mechanism 102. The blowout prevention mechanism 102 includes a sleeve 103, a water injection pipe 104, a mounting flange 105, a separation box 106, and a dust collection component 107. The separation box 106 includes a box body 108, a baffle 109, and an inlet plate 110. The dust collection component 107 includes a dust collection pipe 111, two turntables 112, and a locking plate 113. The drill rod 101 includes a rod body 114 and a drill bit 115.

[0020] In this specific embodiment, the dust collection assembly 107 is fixedly connected to the separation box 106, the separation box 106 is rotatably connected to the drill rod 101, the mounting flange 105 is fixedly connected to the sleeve 103, the water injection pipe 104 is fixedly connected to the sleeve 103, the sleeve 103 is rotatably connected to the drill rod 101, the inlet plate 110 is fixedly connected to the box body 108, the baffle 109 is fixedly connected to the box body 108, the box body 108 is rotatably connected to the drill rod 101, the locking plate 113 is fixedly connected to the two turntables 112, and both turntables 112 are rotatably connected to the dust collection pipe 111. The dust collection pipe 111 is fixedly connected to the housing 108, the drill bit 115 is fixedly connected to the rod 114, and the rod 114 is rotatably connected to the sleeve 103. The baffle 109 above the separation box 106 has two through holes for connecting to external power pipes. After the drill rod 101 is used, it drives the locking plate 113 to rotate through the turntable 112, thereby stopping the escape of dust and powder. This design can achieve manual stopping and solves the problem that it is not easy to stop the dust particles in the dust collection pipe 111 during the flow process, and that dust will still leak after the workers take the housing 108 out of the coal mine hole.

[0021] The dust collection assembly 107 is located below the separation box 106, which is located around the drill rod 101. The mounting flange 105 is located at one end of the sleeve 103. The water injection pipe 104 is located above the sleeve 103, which is located around the drill rod 101. The baffle 109 is provided to prevent dust from escaping back from the box 108.

[0022] Secondly, the inlet plate 110 is located on one side of the housing 108, the baffle 109 is located above the housing 108, and the housing 108 is located around the drill rod 101. During use, the equipment needs to be continuously connected to an external water source. As dust and impurities move, they are discharged through the dust collection pipe 111. The dust collection pipe 111 also needs to be connected to a corresponding receiving pipe to prevent dust from escaping from the dust collection pipe 111 and affecting the safety of workers at the bottom of the coal mine. After the equipment is used up, the input of the external water source is first blocked, and the connection at the baffle 109 is cut off. Then, the two turntables 112 are rotated to drive the locking plate 113 inside the dust collection pipe 111 to rotate, thereby stopping the continued flow of the dust and impurity mixture. At this time, the drill rod 101 and the casing 103 are taken out of the coal mine hole, and the mud and dust will not fall to the bottom of the coal mine, ensuring safety during use.

[0023] Meanwhile, the locking plate 113 is located inside the two turntables 112, which are located on both sides of the dust collection pipe 111. The dust collection pipe 111 is located below the housing 108. The drill bit 115 is located at one end of the rod 114, which is located inside the sleeve 103. The end of the rod 114 away from the drill bit 115 is connected to an external drive mechanism, which drives the rod 114 and the drill bit 115 to rotate inside the coal mine hole. After the worker inserts the sleeve 103 into the coal mine hole, the expansion sealing ring inside the sleeve 103 needs to be inflated to ensure that the sleeve 103 is stable inside the coal mine hole.

[0024] In this embodiment, the baffle 109 prevents dust from escaping back from the housing 108. During use, the device requires continuous connection to an external water source. As dust and impurities move, they are discharged through the dust collection pipe 111. The dust collection pipe 111 also needs to be connected to a corresponding receiving pipe to prevent dust from escaping from the dust collection pipe 111 and affecting the safety of workers at the bottom of the coal mine. After the device is used, the input of the external water source is first blocked, and the connection at the baffle 109 is shut off. Then, the two turntables 112 are rotated to activate the lock inside the dust collection pipe 111. The stop plate 113 rotates to stop the continued flow of the dust and impurity mixture. At this time, the drill rod 101 and the casing 103 are taken out of the coal mine hole. The mud and dust will not fall to the bottom of the coal mine, ensuring safety during use. The end of the rod 114 away from the drill bit 115 is connected to an external drive mechanism, which drives the rod 114 and the drill bit 115 to rotate inside the coal mine hole. After the worker inserts the casing 103 into the coal mine hole, the expansion sealing ring inside the casing 103 needs to be inflated to ensure that the casing 103 is stable inside the coal mine hole.

[0025] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A three-draw orifice dust removal and blowout prevention device, comprising a drill rod, characterized in that, It also includes a blowout preventer, which includes a casing, a water injection pipe, a mounting flange, a separation box, and a dust collection assembly. The dust collection assembly is fixedly connected to the separation box and located below the separation box. The separation box is rotatably connected to the drill rod and located around the drill rod. The mounting flange is fixedly connected to the casing and located at one end of the casing. The water injection pipe is fixedly connected to the casing and located above the casing. The casing is rotatably connected to the drill rod and located around the drill rod. The separation box includes a box body, a baffle, and an inlet plate. The inlet plate is fixedly connected to the box body and located on one side of the box body. The baffle is fixedly connected to the box body and located above the box body. The box body is rotatably connected to the drill rod and located around the drill rod. The dust collection assembly includes a dust collection pipe, two turntables, and a locking plate. The locking plate is fixedly connected to the two turntables and is located inside the two turntables. The two turntables are rotatably connected to the dust collection pipe and are located on both sides of the dust collection pipe. The dust collection pipe is fixedly connected to the housing and is located below the housing.

2. The three-extraction orifice dust removal and blowout prevention device as described in claim 1, characterized in that, The drill rod includes a rod body and a drill bit. The drill bit is fixedly connected to the rod body and located at one end of the rod body. The rod body is rotatably connected to the casing and located inside the casing.

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