AHB type mine gas control drilling hole internal and external extraction and blowout prevention device

Abstract

The present invention relates to the field related to gas emission devices, and specifically to an AHB type mine gas control drilling hole internal and external extraction and blowout prevention device, including a disc separation chamber, an air intake branch pipe and a slag intake branch pipe, wherein a rotating outer tube, an air jet inner tube, a plurality of intermittent nozzles, a plurality of double-layer fixed frames, a plurality of filter screens, a plurality of double-layer elastic plates, a plurality of pointed cone baffles and a sealed sewage removal channel are arranged in the disc separation chamber. The present invention arranges a plurality of groups of through hole groups corresponding to a plurality of axial through grooves at the bottom of the air jet inner tube, and ejects a high-speed carbon dioxide gas flow downward from a plurality of air holes in the through hole group, so that on the one hand, it rushes into between a plurality of double-layer fixed frames to flush off impurities adsorbed on a plurality of corresponding filter screens, and on the other hand, it re-enters the space between adjacent double-layer fixed frames to flush the impurities in the corresponding space downward to the sealed sewage removal channel for removal.

Description

Technical Field

[0001] The invention relates to the field related to gas emission devices, and in particular to an AHB type mine gas control drilling construction hole internal and external extraction and blowout prevention device. Background Art

[0002] Gas extraction refers to the process of extracting underground gas in coal mines or other mines to reduce the gas concentration in the mine and reduce the risk of gas explosion in the mine. By installing gas extraction equipment, underground gas can be extracted to reduce the gas concentration in the mine. my country's invention patent with publication number CN115929386A discloses an AHB type mine gas control drilling hole inside and outside extraction and blowout prevention device, including an inside-hole extraction blowout preventer, a self-sealing gas-water-slag separation collector, and a U-shaped extraction waterproof device. The self-sealing gas-water-slag separation collector includes a gas separation bin and a disc separation bin distributed up and down. The inside of the disc separation bin is provided with six self-shaking filter screens that rotate with the center of the disc separation bin as the rotation center. It sends a mixture containing a large amount of gas and a small amount of impurities into the upper position of the disc separation bin through the air inlet branch pipe, and sends a mixture containing a small amount of gas and a large amount of impurities into the lower position of the disc separation bin through the slag inlet branch pipe, and then uses six synchronously rotating self-shaking filter screens to absorb impurities. During the obstruction and contact process of the raised blocks on the self-shaking filter screens, the impurities on the filter screens are shaken off, and the gas in the disc separation bin can be sucked upward into the gas separation bin for collection.

[0003] The AHB type mine gas control drilling construction hole internal and external extraction and blowout prevention device has the following shortcomings: after it absorbs impurities through a number of self-shaking filter nets, it only realizes the shaking of the self-shaking filter net through the contact obstruction effect of the self-shaking filter net and the protrusion block and the one-way elastic hinge mechanism in the self-shaking filter net, but it does not disclose the specific characteristics of the one-way elastic hinge mechanism. The one-way elastic hinge of the self-shaking filter net here is difficult to realize, and shaking off the impurities on the self-shaking filter net by shaking the self-shaking filter net is bound to involve the contradiction between the thickness of the self-shaking filter net and its own elasticity, that is, the self-shaking filter net is not easy to break. The thicker the filter, the more impurities it can absorb, but the more difficult it is to shake itself. The thinner the self-shaking filter, the less difficult it is to shake and the easier it is to shake significantly, but the fewer impurities it can absorb. Therefore, it is difficult to achieve the corresponding balance. Moreover, it is difficult to ensure sufficient removal of impurities by only shaking the self-shaking filter. The efficiency of removing impurities from the self-shaking filter is directly related to the working efficiency of the blowout preventer and the length of time it can continue to work normally. Therefore, it is difficult to remove impurities from the self-shaking filter, and it is difficult to ensure timely and sufficient removal of impurities. Summary of the invention

[0004] Based on this, it is necessary to provide an AHB type mine gas control drilling construction hole inside and outside extraction and blowout prevention device to address the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] The AHB type mine gas control drilling construction hole internal and external extraction and blowout prevention device comprises a disc separation chamber and an air inlet branch pipe and a slag inlet branch pipe respectively arranged on the disc separation chamber from top to bottom. A rotating outer pipe capable of unidirectional rotation is axially connected in the disc separation chamber, and a fixed jet inner pipe is coaxially connected in the rotating outer pipe. A plurality of evenly distributed intermittent nozzles for spraying gas downward are arranged at the bottom of the outer cylindrical wall of the jet inner pipe. A plurality of double-layer fixed frames evenly distributed in the circumferential direction are fixedly connected to the rotating outer pipe, and a filter screen for adsorbing impurities is fixedly sleeved on the double-layer fixed frame, and the intermittent nozzles will When the double-layer fixed frame moves to the corresponding position, gas is sprayed to remove impurities. A double-layer elastic plate is also provided on each of the double-layer fixed frames. The end of the double-layer elastic plate close to the rotating outer tube is fixedly connected to the double-layer fixed frame, and a number of evenly distributed pointed cone baffles are also fixedly provided at the lower end of the inner part of the disc-type separation bin. The pointed cone baffle is used to block the lower end of the double-layer elastic plate to bend the double-layer elastic plate. After the double-layer elastic plate passes over the pointed cone baffle, it elastically collides with the double-layer fixed frame to shake off impurities on the filter screen. A sealed sewage removal channel is also provided at the bottom of the disc-type separation bin. Water flows in the sealed sewage removal channel to seal and isolate the gas and take away impurities.

[0007] Preferably, the jet inner tube comprises an air intake inner tube and a connecting inner tube which are coaxially connected inside and outside. The bottom of the outer cylindrical wall of the air intake inner tube is formed with six through hole groups arranged at equal angles along the circumferential direction. Each through hole group comprises a plurality of air holes arranged at equal intervals along the axial direction of the air intake inner tube. The connecting inner tube is provided with a plurality of accommodating holes corresponding to the plurality of air holes one by one. A one-way valve is inserted and fixedly inserted in each of the accommodating holes along the radial direction of the connecting inner tube inwardly and sealed. The plurality of intermittent nozzles correspond to the plurality of one-way valves one by one. , and each intermittent nozzle is seal-fixedly connected to one end of the one-way valve away from the axis of the intake inner tube, the inner end of the one-way valve is inserted into the corresponding air hole and seal-fixedly connected to the intake inner tube, the one-way valve is used to allow the gas in the intake inner tube to flow unidirectionally to the outside of the connected inner tube, the number of double-layer fixed frames on the rotating outer tube is six, and the rotating outer tube is provided with twelve axial through grooves evenly distributed in the circumferential direction, the axial through grooves are used to allow the gas ejected from several one-way valves in the corresponding through hole group to pass through the rotating outer tube and be ejected outward.

[0008] Preferably, both ends of the connecting inner tube are formed with a first reducing convex tube, the two first reducing convex tubes are coaxially fixedly connected to the intake inner tube, the two first reducing convex tubes are coaxially sealed and fixedly connected to the first sealing bearing on the outside, the two ends of the rotating outer tube are respectively coaxially sealed sleeves arranged on the two first sealing bearings, both ends of the rotating outer tube are coaxially sealed and fixedly connected to the second reducing convex tube, and the two second reducing convex tubes are coaxially sealed and fixedly connected to the second sealing bearing on the outside, the disc-type separation chamber includes two shells separated in half and sealed and fixedly connected to each other, the two shells are clamped toward each other and sealed and fixedly connected to the outer rings of the two second sealing bearings, and each of the shells and the second sealing bearing is provided with an avoidance circular hole for avoiding the intake inner tube at the connection.

[0009] Preferably, the number of double-layer fixing frames on the rotating outer tube is six, and the six double-layer fixing frames correspond to six axial through grooves one by one, and the corresponding six axial through grooves are each formed with a connecting portion for connecting the double-layer fixing frame, and each of the connecting portions includes two protruding clamps and two end sealing plates formed on the outer cylindrical wall of the rotating outer tube, and the length direction of the protruding clamps is parallel to the axial direction of the rotating outer tube, and the two end sealing plates are symmetrically arranged at both ends of the two protruding clamps, and each of the protruding clamps is formed with a connecting groove for being fixedly connected to the double-layer fixing frame at one end away from the axis of the rotating outer tube, and the filter screen is sleeved on the double-layer fixing frame and then sleeved outside the two end sealing plates and fixedly connected to the two end sealing plates.

[0010] Preferably, the double-layer fixed frame includes two symmetrically arranged rectangular hollow plates corresponding to the two convex clamping plates respectively, and each rectangular hollow plate is fixedly inserted in the corresponding connecting groove at one end close to the rotating outer tube, and the end of the filter screen close to the axis of the rotating outer tube is an open structure, and this end of the filter screen is sleeved on the two rectangular hollow plates facing the axis of the rotating outer tube, and this end of the filter screen is fixedly connected to the two end sealing plates, and the opposite ends of the two rectangular hollow plates are fixedly connected with hollow fixing plates, and the two hollow fixing plates fix the filter screen on the two rectangular hollow plates, and the end of the double-layer elastic plate close to the rotating outer tube is fixedly connected to the two rectangular hollow plates.

[0011] Preferably, the double-layer elastic plate includes two elastic sheets corresponding to two rectangular hollow plates respectively, the elastic sheets are of a hollow structure, and one end of the elastic sheet close to the axis of the rotating outer tube is fixedly connected to the corresponding rectangular hollow plate, the two elastic sheets are arranged on the same side of the two rectangular hollow plates, one end of one of the elastic sheets away from the axis of the rotating outer tube is formed with a protruding rectangular hollow plate and is used to resist the tip of a plurality of pointed cone baffles, the ends of the two elastic sheets away from the axis of the rotating outer tube are connected by a plurality of spaced steel ropes, and the corresponding filter screen, the corresponding rectangular hollow plate and the hollow fixed plate are all formed with avoidance openings for avoiding the steel ropes.

[0012] Preferably, a plurality of the pointed cone baffles are arranged in the disc-type separation bin at equal angles with respect to the axis of the rotating outer tube, and a plurality of positioning recesses for fixing the plurality of pointed cone baffles are formed at the facing ends inside the two shells.

[0013] Preferably, the air inlet branch pipe is arranged above the middle part of one side of the disc separation bin, the slag inlet branch pipe is arranged below the middle part of the same side of the disc separation bin, the sealed sewage removal channel is integrally formed at the bottom of the disc separation bin, and one end of the sealed sewage removal channel is formed with an upwardly raised water inlet, and the other end of the sealed sewage removal channel is formed with a water outlet.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] First, in the present invention, two rectangular hollow plates are combined to form a double-layer fixed frame, and a filter screen is fixedly mounted thereon, thereby ensuring that the area of ​​the filter screen is large enough to absorb as many impurities as possible in the disc-type separation bin;

[0016] Secondly, the present invention arranges a plurality of through hole groups corresponding to a plurality of axial through grooves at the bottom of the jet inner tube, and ejects a high-speed carbon dioxide gas flow downward from a plurality of air holes in the through hole groups, so that on the one hand, it rushes into between a plurality of double-layer fixed frames to flush out impurities adsorbed on a plurality of corresponding filter screens, and on the other hand, it re-enters the space between adjacent double-layer fixed frames to flush the impurities in the corresponding space downward to the sealed sewage removal channel for removal;

[0017] Thirdly, the present invention provides an elastic sheet on each rectangular hollow plate, and connects two elastic sheets on the double-layer fixed frame with a steel rope, and then drives the elastic sheets to bend and deform through the action of the pointed cone baffle and the corresponding elastic sheets. After the lower end of the elastic sheet passes over the pointed cone baffle, the two elastic sheets collide with the two rectangular hollow plates respectively, thereby shaking off the impurities on the filter screen, and cooperating with the dual action of the carbon dioxide airflow blown out from the air holes to timely and fully remove the impurities on the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the three-dimensional structure of the embodiment Figure 1 .

[0019] Figure 2 Schematic diagram of the three-dimensional structure of the embodiment Figure 2 .

[0020] Figure 3 It is a three-dimensional structural exploded view of the embodiment.

[0021] Figure 4 yes Figure 3 A magnified view of the local structure at point A.

[0022] Figure 5It is a three-dimensional structural exploded view of the rotating outer tube and the jet inner tube of the embodiment.

[0023] Figure 6 yes Figure 5 A magnified view of the local structure at point B in the middle.

[0024] Figure 7 It is a partial three-dimensional structural exploded view of the rotating outer tube and the jet inner tube of the embodiment.

[0025] Figure 8 yes Figure 7 Enlarged view of the local structure at point C in the middle.

[0026] Fig. 9 It is a three-dimensional structural exploded view of the rotating outer tube and the double-layer fixed frame of the embodiment.

[0027] Fig.10 yes Fig. 9 Enlarged view of the local structure at point D in the middle.

[0028] Fig.11 It is a three-dimensional structural exploded view of the double-layer fixing frame and the filter screen of the embodiment.

[0029] Fig.12 yes Fig.11 Enlarged view of the local structure at point E in the middle.

[0030] Fig.13 It is a three-dimensional structural exploded view of the double-layer fixing frame and the double-layer elastic sheet of the embodiment.

[0031] Fig.14 yes Fig.13 Enlarged view of the local structure at F in the middle.

[0032] The numbers in the figure are: 1. disc separation bin; 2. air inlet branch pipe; 3. slag inlet branch pipe; 4. rotating outer pipe; 5. double-layer fixed frame; 6. filter screen; 7. double-layer elastic plate; 8. pointed cone baffle; 9. sealed sewage channel; 10. air inlet inner pipe; 11. connecting inner pipe; 12. air hole; 13. accommodating hole; 14. one-way valve; 15. axial through groove; 16. first reduced diameter convex pipe; 17. first sealed bearing; 18. second reduced diameter convex pipe; 19. second sealed bearing; 20. shell; 21. avoidance circular hole; 22. external convex splint; 23. end sealing plate; 24. connecting trough; 25. rectangular hollow plate; 26. hollow fixed plate; 27. elastic sheet; 28. tip; 29. ​​steel rope; 30. water inlet; 31. water outlet. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] refer to Figures 1 to 14 The AHB type mine gas control drilling construction hole internal and external extraction and blowout prevention device shown in the figure comprises a disc separation chamber 1 and an air inlet branch pipe 2 and a slag inlet branch pipe 3 respectively arranged on the disc separation chamber 1 from top to bottom, the disc separation chamber 1 is provided with a rotating outer pipe 4 that can rotate in one direction, the rotating outer pipe 4 is provided with a fixed jet inner pipe coaxially connected to the rotating outer pipe, a plurality of evenly distributed intermittent nozzles for spraying gas downward are provided at the bottom of the outer cylindrical wall of the jet inner pipe, a plurality of double-layer fixed frames 5 evenly distributed in the circumferential direction are fixedly connected to the rotating outer pipe 4, a filter screen 6 for adsorbing impurities is fixedly sleeved on the double-layer fixed frame 5, and the intermittent nozzles are arranged on the double-layer fixed frame 5. When the fixed frame 5 moves to the corresponding position, gas is sprayed to remove impurities. A double-layer elastic plate 7 is also provided on each of the double-layer fixed frames 5. The end of the double-layer elastic plate 7 close to the rotating outer tube 4 is fixedly connected to the double-layer fixed frame 5, and a plurality of evenly distributed pointed cone baffles 8 are also fixedly provided at the lower end of the inner part of the disc-type separation bin 1. The pointed cone baffle 8 is used to block the lower end of the double-layer elastic plate 7 to bend the double-layer elastic plate 7. After the double-layer elastic plate 7 passes over the pointed cone baffle 8, it elastically collides with the double-layer fixed frame 5 to shake off the impurities on the filter screen 6. A sealed sewage removal channel 9 is also provided at the bottom of the disc-type separation bin 1. A water flow for sealing and isolating gas and taking away impurities flows in the sealed sewage removal channel 9.

[0035] The raw material containing a large amount of gas and a small amount of impurities is fed into the disc separation bin 1 through the air intake branch pipe 2, and the raw material containing a small amount of gas and a large amount of impurities is fed into the disc separation bin 1 through the slag intake branch pipe 3. The air intake branch pipe 2 is located above the slag intake branch pipe 3. The upper end of the disc separation bin 1 is also provided with a gas separation bin (i.e., the gas separation bin in the comparative document, which is not shown in the figure) which can suck the gas in the disc separation bin 1 upward. The rotating outer tube 4 drives a plurality of double-layer fixed frames 5 to rotate in a directional manner in the disc separation bin 1 (the portion of the rotating outer tube 4 protruding from the disc separation bin 1 is externally connected to a rotation driving source, and the rotation driving source is not shown in the figure). The double-layer fixed frames 5 rotate During the process, impurities in the disc separation bin 1 will be adsorbed on the filter 6, while gas will pass through the filter 6 without being adsorbed. At the same time, the flowing water below the disc separation bin 1 can prevent the gas from flowing out from the lower end of the disc separation bin 1, ensuring that the gas will only be sucked upward to the gas separation bin. Whenever the corresponding double-layer fixed frames 5 on the rotating outer tube 4 rotate to the lower end of the disc separation bin 1 (specifically, the position of the several jet inner tubes), the several jet inner tubes will simultaneously spray gas downward. The gas is specifically carbon dioxide gas. The carbon dioxide gas is compressed under high pressure and then sprayed out from the jet inner tube. Among them, some intermittent nozzles are facing the inside of the double-layer fixed frame 5. The gas ejected blows off a large amount of impurities on the filter screen 6, and at this time the double-layer fixed frame 5 has moved to the top of the sealed sewage removal channel 9, and the impurities blown off fall into the water and are carried away by the water flow and discharged. At the same time, the ejected carbon dioxide gas can also be absorbed by water (a small amount of carbon dioxide gas is discharged together with the gas and then collected, and the collected gas is filtered to remove excess carbon dioxide). Another part of the intermittent nozzles is located between the double-layer fixed frames 5 at adjacent corresponding positions, and the gas ejected is used to drive the gas and impurities at the corresponding position to flow to the water flow in the sealed sewage removal channel 9 below. At the same time, a number of pointed cone baffles 8 are also located in this area. When the double-layer fixed frame 5 passes through the pointed cone baffle 8, the lower end of the double-layer elastic plate 7 hits the pointed cone baffle 8, so that the lower end of the double-layer elastic plate 7 is bent and has a certain elasticity. The double-layer elastic plate 7 continues to move and bends to a certain arc, then slides over the pointed cone baffle 8, and rebounds and collides with the double-layer fixed frame 5, thereby shaking off some impurities on the filter screen 6. Gas is insoluble in water and will not flow into water, and carbon dioxide gas is difficult to react with gas, and it can also play an explosion-proof role to a certain extent. Impurities and carbon dioxide gas fall into the water and are taken away. In this way, the impurities in the disc separation bin 1 are removed and the gas is retained to flow upward into the gas separation bin.

[0036] In order to ensure that the gas in the jet inner tube is unidirectionally sprayed toward the outside of the rotating outer tube 4, the following features are specifically set:

[0037] The jet inner tube comprises an inner intake tube 10 and a connecting inner tube 11 which are coaxially connected inside and outside. The bottom of the outer cylindrical wall of the inner intake tube 10 is formed with six through hole groups arranged at equal angles along the circumferential direction. Each through hole group comprises a plurality of air holes 12 arranged at equal intervals along the axial direction of the inner intake tube 10. The connecting inner tube 11 is provided with a plurality of accommodating holes 13 corresponding to the plurality of air holes 12 one by one. A one-way valve 14 is inserted and sealed in each of the accommodating holes 13 radially inwardly along the connecting inner tube 11. The plurality of intermittent nozzles correspond to the plurality of one-way valves 14 one by one, and each An intermittent nozzle is sealably fixedly connected to the one-way valve 14 at one end away from the axis of the intake inner tube 10. The inner end of the one-way valve 14 is inserted into the corresponding air hole 12 and is sealably fixedly connected to the intake inner tube 10. The one-way valve 14 is used to allow the gas in the intake inner tube 10 to flow unidirectionally to the outside of the connected inner tube 11. The number of double-layer fixed frames 5 on the rotating outer tube 4 is six, and the rotating outer tube 4 is provided with twelve axial through grooves 15 evenly distributed in the circumferential direction. The axial through grooves 15 are used to allow the gas ejected from several one-way valves 14 in the corresponding through hole group to pass through the rotating outer tube 4 and be ejected outward.

[0038] The intermittent nozzle is not shown in the figure. The intermittent nozzle is a conventional narrow-angle fan-shaped nozzle, which is used to increase the coverage area of ​​the ejected carbon dioxide gas and maintain the flow rate of the ejected carbon dioxide gas, thereby ensuring that the carbon dioxide gas can be sprayed onto the filter 6 over a large area and at high speed to blow off impurities. The one-way valve 14 is used to prevent the gas outside the connected inner tube 11 from flowing into the intake inner tube 10, that is, it is mainly used to prevent the gas from flowing into the intake inner tube 10 to ensure the collection rate of the gas. The axial through groove 15 is a long strip through groove with the length direction along the axial direction of the rotating outer tube 4. The gas ejected from the intermittent nozzle passes through the axial through groove 15 and flows into the double-layer fixed frame 5 or the disc separation chamber 1. The angle between adjacent through hole groups and the angle between adjacent axial through grooves 15 are both 30°.

[0039] In order to connect the jet inner tube, the rotating outer tube 4 and the disc separation chamber 1, the following features are specifically set:

[0040] Both ends of the connecting inner tube 11 are formed with a first reducing convex tube 16, the two first reducing convex tubes 16 are coaxially fixedly connected to the intake inner tube 10, and the two first reducing convex tubes 16 are coaxially sealed and fixedly connected to the first sealing bearing 17 on the outside, and the two ends of the rotating outer tube 4 are coaxially sealed and fixedly arranged on the two first sealing bearings 17, and the two ends of the rotating outer tube 4 are coaxially sealed and fixedly connected to the second reducing convex tube 18, and the two second reducing convex tubes 18 are coaxially sealed and fixedly connected to the second sealing bearing 19 on the outside, and the disc-type separation chamber 1 includes two shells 20 separated in half and sealed and fixedly connected to each other, the two shells 20 are clamped toward each other and sealed and fixedly connected to the outer rings of the two second sealing bearings 19, and each of the shells 20 and the second sealing bearing 19 are connected at the connection The avoidance circular hole 21 for avoiding the intake inner tube 10 is opened.

[0041] The air intake inner tube 10, the first reduced diameter inner tube, the first sealed bearing 17, the second reduced diameter convex tube 18 and the second sealed bearing 19 are sealed and connected in sequence from the inside to the outside, thereby achieving sealing at the connection between the jet inner tube, the rotating outer tube 4 and the disc separation chamber 1 to prevent the gas in the disc separation chamber 1 from flowing out.

[0042] In order to connect the double-layer fixed frame 5 and the rotating outer tube 4, the following features are specifically set:

[0043] There are six double-layer fixed frames 5 on the rotating outer tube 4, and the six double-layer fixed frames 5 correspond to six axial through grooves 15 one by one. The corresponding six axial through grooves 15 are formed with connecting parts for connecting the double-layer fixed frames 5. Each of the connecting parts includes two convex clamping plates 22 and two end sealing plates 23 formed on the outer cylindrical wall of the rotating outer tube 4. The length direction of the convex clamping plates 22 is parallel to the axial direction of the rotating outer tube 4. The two end sealing plates 23 are symmetrically arranged at both ends of the two convex clamping plates 22. The end of each of the convex clamping plates 22 away from the axis of the rotating outer tube 4 is formed with a connecting groove 24 for being fixedly connected to the double-layer fixed frame 5. The filter screen 6 is sleeved on the double-layer fixed frame 5 and then sleeved outside the two end sealing plates 23 and fixedly connected to the two end sealing plates 23.

[0044] The number of axial through grooves 15 is set to twelve, while the number of double-layer fixed frames 5 and through-hole groups is six, and the angles between adjacent through-hole groups and the angles between adjacent axial through grooves 15 are both 30°, while the angle between adjacent double-layer fixed frames 5 is 60°. In this way, when the double-layer fixed frame 5 moves to correspond to a certain through-hole group, the two through-hole groups located on both sides of the double-layer fixed frame 5 are directly opposite to the corresponding two axial through grooves 15, and the two axial through grooves 15 are respectively located between the corresponding two double-layer fixed frames 5. In this way, the carbon dioxide between the two axial through grooves 15 will be sprayed into the disc separation bin 1 instead of being sprayed into the double-layer fixed frame 5. In this way, a large amount of impurities in the space between the two adjacent double-layer fixed frames 5 will be blown into the sealed sewage removal channel 9. The outer convex splint 22, the end sealing plate 23, the filter screen 6 and the double-layer fixed frame 5 close to the end of the rotating outer tube 4 and the connecting sink 24 are Figure 6 , Fig. 9 and Fig.10 In the structure shown in the figure, the corresponding ends of the double-layer fixed frame 5 are inserted into the two connecting grooves 24 and then fixedly connected to the two convex clamping plates 22. The two end sealing plates 23 are connected to the filter screen 6 and are used to close the two ends of the convex clamping plates 22 to prevent the carbon dioxide gas from leaking out from the end sealing plates 23 after being sprayed out.

[0045] In order to connect the double-layer fixed frame 5, the rotating outer tube 4 and the filter screen 6, the following features are specifically set:

[0046] The double-layer fixed frame 5 includes two symmetrically arranged rectangular hollow plates 25 corresponding to the two convex clamping plates 22 respectively, and each rectangular hollow plate 25 is fixedly inserted in the corresponding connecting groove 24 at one end close to the rotating outer tube 4, and the filter screen 6 is in an open structure at one end close to the axis of the rotating outer tube 4, and this end of the filter screen 6 is sleeved on the two rectangular hollow plates 25 facing the axis of the rotating outer tube 4, and this end of the filter screen 6 is fixedly connected to the two end sealing plates 23, and the opposite ends of the two rectangular hollow plates 25 are fixedly connected with hollow fixing plates 26, and the two hollow fixing plates 26 fix and press the filter screen 6 on the two rectangular hollow plates 25, and the double-layer elastic plate 7 is fixedly connected to the two rectangular hollow plates 25 at one end close to the rotating outer tube 4.

[0047] The hollow fixing plate 26 is used to clamp and fix the filter 6 on the rectangular hollow plate 25. Both the rectangular hollow plate 25 and the hollow fixing plate 26 are hollow structures, so as to facilitate gas to pass through the filter 6 and allow dust to be adsorbed on the filter 6.

[0048] In order to connect the double-layer fixing frame 5 and the double-layer elastic plate 7, the following features are specifically set:

[0049] The double-layer elastic plate 7 includes two elastic sheets 27 corresponding to two rectangular hollow plates 25 respectively. The elastic sheets 27 are hollow structures, and one end of the elastic sheet 27 close to the axis of the rotating outer tube 4 is fixedly connected to the corresponding rectangular hollow plate 25. The two elastic sheets 27 are arranged on the same side of the two rectangular hollow plates 25. One end of one elastic sheet 27 away from the axis of the rotating outer tube 4 is formed with a tip 28 protruding from the rectangular hollow plate 25 and used to resist a plurality of pointed cone baffles 8. The ends of the two elastic sheets 27 away from the axis of the rotating outer tube 4 are connected by a plurality of spaced steel ropes 29, and the corresponding filter screen 6, the corresponding rectangular hollow plate 25 and the hollow fixed plate 26 are all formed with avoidance openings for avoiding the steel ropes 29.

[0050] The rectangular hollow plate 25, the hollow fixing plate 26 and the elastic sheet 27 are all made of plastic, so as to effectively prevent sparks from being generated after collision. The two elastic sheets 27 are arranged on the same side of the two rectangular hollow plates 25, and as the rotating outer tube 4 rotates (a plurality of filter screens 6 are in the Figure 3 When the two rectangular hollow plates 25 are rotated clockwise in the middle) so that the two rectangular hollow plates 25 are close to the first pointed cone baffle 8, the two elastic sheets 27 are respectively located on the side of the two rectangular hollow plates 25 away from the pointed cone baffle 8, and the tip 28 is formed on the elastic sheet 27 away from the pointed cone baffle 8 (i.e. Fig.11 , Fig.13 and Fig.14 As shown in FIG. 1 , after the rectangular hollow plate 25 and the elastic sheet 27 close to the pointed cone baffle 8 pass over the pointed cone baffle 8, the tip 28 on the other elastic sheet 27 contacts the pointed cone baffle 8 (the pointed cone baffle 8 is Figure 4The structure shown in the figure has a pointed cone structure at the top, so as to prevent the impurities from accumulating thereon, and the pointed cone structure can better cooperate with the tip 28 in sliding. After the elastic sheet 27 is deformed to a certain extent, the tip 28 can slide over the pointed cone baffle 8. After the rotating outer tube 4 continues to rotate, the lower end of the elastic sheet 27 with the pointed end 28 is blocked by the pointed cone baffle 8 and cannot continue to move forward, so that the elastic sheet 27 begins to bend and deform. At the same time, the elastic sheet 27 with the pointed cone pulls another elastic sheet through a plurality of steel ropes 29. 27 is also elastically deformed, and as the rotating outer tube 4 rotates, the elastic sheet 27 is deformed. The tip 28 of the elastic sheet 27 gradually slides upward along the pointed cone baffle 8 and finally passes over the pointed cone baffle 8. After the tip 28 of the elastic sheet 27 passes over the pointed cone baffle 8, the elastic sheet 27 recovers its deformation under the action of its own elastic force and collides with the rectangular hollow plate 25, thereby shaking off some impurities on the filter screen 6. The working principles and processes of the double-layer fixed frame 5 and the double-layer elastic plate 7 are consistent with those of the several pointed cone baffles 8, which will not be repeated here.

[0051] In order to connect the disc-type separation bin 1 and the plurality of pointed cone baffles 8, the following features are specifically provided:

[0052] The plurality of pointed cone baffles 8 are arranged in the disc separation bin 1 at equal angles with respect to the axis of the rotating outer tube 4 , and the two shells 20 have a plurality of positioning recesses formed at the facing ends thereof for fixing the plurality of pointed cone baffles 8 .

[0053] The figure does not point out the positioning groove, and several pointed cone baffles 8 are set at equal angles about the axis of the rotating outer tube 4, so as to ensure that the tip portions 28 of the pointed cone baffles 8 can all abut against and interact with the several pointed cone baffles 8.

[0054] In order to more efficiently collect the gas in the disc separation bin 1 and discharge the impurities in the disc separation bin 1, the following features are specifically set:

[0055] The air inlet branch pipe 2 is arranged at the upper middle part of one side of the disc separation bin 1, and the slag inlet branch pipe 3 is arranged at the lower middle part of the same side of the disc separation bin 1. The sealed sewage removal channel 9 is integrally formed at the bottom of the disc separation bin 1, and one end of the sealed sewage removal channel 9 is formed with an upwardly raised water inlet 30, and the other end of the sealed sewage removal channel 9 is formed with a water outlet 31.

[0056] Since the air intake branch pipe 2 contains a large amount of gas and a small amount of impurities, the slag intake branch pipe 3 contains a large amount of impurities and a small amount of gas, and the gas separation chamber can suck the gas in the disc separation chamber 1 upward, the air intake branch pipe 2 is arranged above the middle part of the disc separation chamber 1, and the slag intake branch pipe 3 is arranged below the middle part of the disc separation chamber 1. The gas discharged from the air intake branch pipe 2 can be more easily sucked upward into the gas separation chamber for collection, while the impurities discharged from the slag intake branch pipe 3 are heavier and will move downward with the downward spraying of carbon dioxide gas, and will eventually be discharged through the sealed sewage removal channel 9.

[0057] Working principle: The raw material containing a large amount of gas and a small amount of impurities is sent into the disc separation bin 1 through the air inlet branch pipe 2, and the raw material containing a small amount of gas and a large amount of impurities is sent into the disc separation bin 1 through the slag inlet branch pipe 3. The air inlet branch pipe 2 is located above the slag inlet branch pipe 3. The rotating outer pipe 4 drives several double-layer fixed frames 5 to rotate in a directional manner in the disc separation bin 1. During the rotation of the double-layer fixed frames 5, the impurities in the disc separation bin 1 will be adsorbed on the filter screen 6, while the gas will pass through the filter screen 6 without being adsorbed. At the same time, the flowing water under the disc separation bin 1 can prevent the gas from The gas flows out from the lower end of the disc-type separation chamber 1, ensuring that the gas will only be sucked upward to the gas separation chamber. Whenever the corresponding double-layer fixed frames 5 on the rotating outer tube 4 rotate to the lower end of the disc-type separation chamber 1 (specifically, the position of the several jet inner tubes), the several jet inner tubes simultaneously spray gas downward. The gas is specifically carbon dioxide gas. The carbon dioxide gas is compressed under high pressure and then sprayed out from the jet inner tube. Among them, some intermittent nozzles are facing the inside of the double-layer fixed frame 5. The gas sprayed blows off a large amount of impurities on the filter screen 6, and at this time, the double-layer fixed frame 5 is rotated to the lower end of the disc-type separation chamber 1 (specifically, the position of the several jet inner tubes). The double-layer fixed frame 5 has moved to the top of the sealed sewage removal channel 9, and the impurities blown off fall into the water and are carried away and discharged by the water flow. At the same time, the ejected carbon dioxide gas can also be absorbed by the water. Another part of the intermittent nozzles is located between the double-layer fixed frames 5 at the adjacent corresponding positions. The gas ejected is used to drive the gas and impurities at the corresponding position to flow to the water flow in the sealed sewage removal channel 9 below. At the same time, several pointed cone baffles 8 are also located in this area. When the double-layer fixed frame 5 passes the pointed cone baffle 8, the lower end of the double-layer elastic plate 7 contacts the pointed cone baffle. 8, so that the lower end of the double-layer elastic plate 7 is bent and has a certain elasticity. The double-layer elastic plate 7 continues to move and bends to a certain arc, then slides over the pointed cone baffle 8, and rebounds and collides with the double-layer fixed frame 5, thereby shaking off some impurities on the filter screen 6. Gas is difficult to dissolve in water and will not flow into the water. Carbon dioxide gas is difficult to react with gas gas, and it can also play an explosion-proof role to a certain extent. Impurities and carbon dioxide gas fall into the water and are taken away. In this way, the impurities in the disc separation bin 1 are removed and the gas is retained to flow upward into the gas separation bin.

[0058] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An AHB type mine gas control drilling hole internal and external extraction and blowout prevention device, comprising a disc-type separation chamber (1) and an air intake branch pipe (2) and a slag intake branch pipe (3) respectively arranged on the disc-type separation chamber (1) from top to bottom, characterized in that: The disc-type separation bin (1) is provided with a rotating outer tube (4) capable of unidirectional rotation on its inner shaft, a jet inner tube (4) is provided with a fixed jet inner tube coaxially on its inner shaft, a plurality of evenly distributed intermittent nozzles for jetting gas downward are provided at the bottom of the outer cylindrical wall of the jet inner tube, a plurality of evenly distributed double-layer fixed frames (5) are fixedly connected to the rotating outer tube (4), a filter screen (6) for adsorbing impurities is fixedly sleeved on the double-layer fixed frame (5), and the intermittent nozzles will jet gas to remove impurities when the double-layer fixed frame (5) moves to a corresponding position, and each of the double-layer fixed frames (5) is also provided with a double-layer fixed frame (6). The elastic plate (7) is fixedly connected to the double-layer fixed frame (5) at one end of the double-layer elastic plate (7) close to the rotating outer tube (4), and a plurality of evenly distributed pointed cone baffles (8) are fixedly arranged at the lower end of the inner part of the disc-type separation chamber (1). The pointed cone baffles (8) are used to block the lower end of the double-layer elastic plate (7) to bend the double-layer elastic plate (7). After the double-layer elastic plate (7) passes over the pointed cone baffles (8), it elastically collides with the double-layer fixed frame (5) to shake off impurities on the filter screen (6). A sealed sewage removal channel (9) is also arranged at the bottom of the disc-type separation chamber (1). Water flows in the sealed sewage removal channel (9) to seal and isolate gas and remove impurities. The jet inner tube comprises an air intake inner tube (10) and a connecting inner tube (11) which are coaxially connected to each other. The bottom of the outer cylindrical wall of the air intake inner tube (10) is formed with six through hole groups arranged at equal angles in the circumferential direction. Each through hole group comprises a plurality of air holes (12) arranged at equal intervals along the axial direction of the air intake inner tube (10). The connecting inner tube (11) is provided with a plurality of receiving holes (13) corresponding to the plurality of air holes (12) in a one-to-one manner. A one-way valve (14) is inserted and fixedly sealed inwardly along the radial direction of the connecting inner tube (11). The plurality of intermittent nozzles correspond to the plurality of one-way valves (14) in a one-to-one manner, and each intermittent nozzle (13) is provided with a one-way valve (14). The nozzle seal is fixedly connected to the one-way valve (14) at one end away from the axis of the intake inner tube (10); the inner end of the one-way valve (14) is inserted into the corresponding air hole (12) and is sealed and fixedly connected to the intake inner tube (10); the one-way valve (14) is used to allow the gas in the intake inner tube (10) to flow unidirectionally to the outside of the connecting inner tube (11); the number of double-layer fixing frames (5) on the rotating outer tube (4) is six, and the rotating outer tube (4) is provided with twelve axial through grooves (15) evenly distributed in the circumferential direction; the axial through grooves (15) are used to allow the gas ejected from a number of one-way valves (14) in the corresponding through hole group to pass through the rotating outer tube (4) and be ejected outward.

2. The AHB type mine gas control drilling hole internal and external extraction blowout prevention device according to claim 1 is characterized in that: Both ends of the connecting inner tube (11) are formed with first reduced diameter convex tubes (16), the two first reduced diameter convex tubes (16) are coaxially fixedly connected to the intake inner tube (10), and the two first reduced diameter convex tubes (16) are coaxially sealed and fixedly connected to first sealing bearings (17) on the outside. Both ends of the rotating outer tube (4) are coaxially sealed sleeves on the two first sealing bearings (17), and both ends of the rotating outer tube (4) are coaxially sealed and fixedly connected to second reduced diameter convex tubes (18), and the two second reduced diameter convex tubes (18) are coaxially sealed and fixedly connected to second sealing bearings (19) on the outside. The disc-type separation chamber (1) comprises two shells (20) separated in half and sealed and fixedly connected to each other. The two shells (20) are clamped toward each other and sealed and fixedly connected to the outer rings of the two second sealing bearings (19), and each of the shells (20) is provided with an avoidance circular hole (21) for avoiding the intake inner tube (10) at the connection between the second sealing bearing (19).

3. The AHB type mine gas control drilling construction hole internal and external extraction blowout prevention device according to claim 1 is characterized in that: The number of double-layer fixing frames (5) on the rotating outer tube (4) is six, and the six double-layer fixing frames (5) correspond to the six axial through grooves (15) therein one by one. The corresponding six axial through grooves (15) are all formed with connecting parts for connecting the double-layer fixing frames (5). Each of the connecting parts comprises two outer convex clamping plates (22) and two end sealing plates (23) formed on the outer cylindrical wall of the rotating outer tube (4). The length direction of the outer convex clamping plates (22) is parallel to the axial direction of the rotating outer tube (4). The two end sealing plates (23) are symmetrically arranged at the two ends of the two outer convex clamping plates (22). The end of each of the outer convex clamping plates (22) away from the axis of the rotating outer tube (4) is formed with a connecting groove (24) for being fixedly connected to the double-layer fixing frame (5). The filter screen (6) is sleeved on the double-layer fixing frame (5) and then sleeved outside the two end sealing plates (23) and is fixedly connected to the two end sealing plates (23).

4. The AHB type mine gas control drilling construction hole internal and external extraction blowout prevention device according to claim 3 is characterized in that: The double-layer fixed frame (5) comprises two symmetrically arranged rectangular hollow plates (25) respectively corresponding to the two convex clamping plates (22); one end of each rectangular hollow plate (25) close to the rotating outer tube (4) is fixedly inserted in the corresponding connecting sink (24); one end of the filter screen (6) close to the axis of the rotating outer tube (4) is an open structure, and this end of the filter screen (6) is sleeved on the two rectangular hollow plates (25) facing the axis of the rotating outer tube (4); this end of the filter screen (6) is fixedly connected to the two end sealing plates (23); the opposite ends of the two rectangular hollow plates (25) are fixedly connected to the hollow fixing plates (26); the two hollow fixing plates (26) fix and press the filter screen (6) on the two rectangular hollow plates (25); and one end of the double-layer elastic plate (7) close to the rotating outer tube (4) is fixedly connected to the two rectangular hollow plates (25).

5. The AHB type mine gas control drilling hole internal and external extraction blowout prevention device according to claim 4 is characterized in that: The double-layer elastic plate (7) comprises two elastic sheets (27) respectively corresponding to two rectangular hollow plates (25), the elastic sheets (27) being of a hollow structure, and one end of the elastic sheet (27) close to the axis of the rotating outer tube (4) is fixedly connected to the corresponding rectangular hollow plate (25), the two elastic sheets (27) are arranged on the same side of the two rectangular hollow plates (25), one end of one of the elastic sheets (27) away from the axis of the rotating outer tube (4) is formed with a tip portion (28) protruding from the rectangular hollow plate (25) and used to abut against a plurality of pointed cone baffles (8), the two ends of the two elastic sheets (27) away from the axis of the rotating outer tube (4) are connected by a plurality of steel ropes (29) arranged at intervals, and the corresponding filter screen (6), the corresponding rectangular hollow plate (25) and the hollow fixed plate (26) are all formed with avoidance openings for avoiding the steel ropes (29).

6. The AHB type mine gas control drilling construction hole internal and external extraction blowout prevention device according to claim 2 is characterized in that: A plurality of the pointed cone baffles (8) are arranged in the disc-type separation bin (1) at equal angles with respect to the axis of the rotating outer tube (4), and a plurality of positioning recessed grooves for fixing the plurality of pointed cone baffles (8) are formed at the facing ends inside the two shells (20).

7. The AHB type mine gas control drilling construction hole internal and external extraction blowout prevention device according to claim 1 is characterized in that: The air inlet branch pipe (2) is arranged above the middle of one side of the disc-type separation bin (1), the slag inlet branch pipe (3) is arranged below the middle of the same side of the disc-type separation bin (1), the sealed sewage removal channel (9) is integrally formed at the bottom of the disc-type separation bin (1), and one end of the sealed sewage removal channel (9) is formed with an upwardly tilted water inlet (30), and the other end of the sealed sewage removal channel (9) is formed with a water outlet (31).

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