CN209780949U - Pipe breaking device for buried pipe in coal mine goaf - Google Patents
Pipe breaking device for buried pipe in coal mine goaf Download PDFInfo
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- CN209780949U CN209780949U CN201920462848.4U CN201920462848U CN209780949U CN 209780949 U CN209780949 U CN 209780949U CN 201920462848 U CN201920462848 U CN 201920462848U CN 209780949 U CN209780949 U CN 209780949U
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- pipe
- goaf
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- flange
- drawer box
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Abstract
The utility model discloses a disconnected pipe device for coal mine goaf pipe laying, it includes the iron pipe of cylinder, is connected with the flange at the both ends of iron pipe, and the iron pipe passes through the flange and is connected with the pipe laying, the centre of iron pipe is through square drawer box fixed connection, the three sides of drawer box are sealed, and the side is equipped with opening and fixedly connected with square flange, and square flange is downthehole to have the closure plate of telescopic, and the square flange outside has square flange lid through bolted connection. By using the goaf pipe burying and breaking device, the pipe burying and extracting action points can be relatively and fixedly distributed in the goaf heat dissipation zone, so that the gas flow in the oxidation zone is reduced or avoided, the self oxidation speed of top (bottom) float coal in the oxidation zone is greatly reduced, and finally the float coal enters the suffocation zone. According to the spontaneous combustion three-zone division of the goaf, the gas flow of the oxidation zone of the goaf can be effectively controlled, the occurrence of fire accidents of the goaf can be greatly reduced, and a good using effect is achieved.
Description
Technical Field
The utility model relates to a disconnected pipe device especially relates to a disconnected pipe device that is used for coal mine goaf pipe laying, belongs to colliery gas drainage equipment technical field.
Background
The pipe-buried extraction is a common most effective method for treating the gas overrun of the upper corner of the coal face in the southwest mining area, and prevents the gas in the goaf of the coal face from flowing out to the upper corner. However, if spontaneous combustion occurs in the top (bottom) coal left on the mining face in the goaf, gas flow in the goaf is aggravated by the aid of pipe laying drainage, spontaneous combustion speed of coal beds in the goaf is promoted, fire accidents in the goaf are caused, safety accidents are caused, the goaf and the mining face are sealed if the goaf and the mining face are light, and the whole mine is sealed if the goaf and the mining face are heavy.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the pipe breaking device for the buried pipe of the coal mine goaf enables the extraction action points of the buried pipe of the coal face to be distributed in the heat dissipation zone area of the spontaneous combustion zone three zones of the goaf, can effectively avoid the gas flow in the oxidation zone, and prevent the spontaneous combustion of the coal body in the oxidation zone, so that the gas in the goaf can not be gushed out to the coal face, and the spontaneous combustion speed of the coal body in the oxidation zone of the goaf can be effectively controlled, thereby avoiding the fire accident caused by the spontaneous combustion of the coal body in the goaf, and effectively solving the existing problems.
The technical scheme of the utility model is that: the pipe breaking device comprises a cylindrical iron pipe, flanges are connected to two ends of the iron pipe, the iron pipe is connected with the buried pipe through the flanges, the middle of the iron pipe is fixedly connected with a square drawer box, the drawer box is sealed in three sides, an opening is formed in one side edge of the drawer box, a square flange is fixedly connected to the side edge of the drawer box, a plugging plate capable of being pulled out is arranged in the square flange hole, and the outer side of the square flange is connected with a square flange cover through bolts.
The drawer box is of a two-square-plate structure which is symmetrically arranged, the distance between the two flat plates is larger than the thickness of the blocking plate, three side edges between the two flat plates are of a welding sealing structure, a round hole is formed in the middle of each flat plate, and an iron pipe is inserted into the round hole and is welded with the flat plates.
The blocking plate is of a square flat plate structure.
The utility model has the advantages that: compared with the prior art, adopt the technical scheme of the utility model, through using the disconnected pipe device of collecting space area buried pipe, buried pipe drainage effect point can relatively fixed distribute in collecting space area heat dissipation band, reduces or avoids the intraband gas flow of oxidation, greatly reduced in the oxidation zone top (end) float coal self oxidation rate, finally get into the in-band of suffocating. According to the spontaneous combustion three-zone division of the goaf, the gas flow of the oxidation zone of the goaf can be effectively controlled, the occurrence of fire accidents of the goaf can be greatly reduced, and a good using effect is achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
Fig. 2 is a side view of the present invention;
Fig. 3 is a top view of the present invention;
Fig. 4 is a schematic view of the installation position of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1: as shown in the attached drawings 1-4, the pipe breaking device for the coal mine goaf pipe burying comprises a cylindrical iron pipe 1, flanges 4 are connected to two ends of the iron pipe 1, the iron pipe 1 is connected with the pipe burying through the flanges 4, the middle of the iron pipe 1 is fixedly connected through a square drawer box 2, the drawer box 2 is sealed in three parts, an opening is formed in the side edge of the drawer box, a square flange 5 is fixedly connected to the side edge of the drawer box, a blocking plate 3 capable of being extracted is arranged in a hole of the square flange 5, and the outer side of the square flange 5 is connected with a square flange cover 6 through a bolt.
Further, drawer box 2 is two square flat plate structure of symmetrical arrangement, and the interval between two flat plates is greater than the thickness of closure plate 3, and three side between two flat plates is welded seal structure, and it has the round hole to open in dull and stereotyped centre, and iron pipe 1 inserts in the round hole and with dull and stereotyped welded connection.
Further, the blocking plate 3 is a square flat plate structure.
Furthermore, the drawer box 2 and the iron pipe 1 are welded together, when the pipe needs to be broken, the blocking plate 3 is inserted into the drawer box 2, the square flange cover 6 is fixed on the drawer box 2 in a sealing mode through bolts, the extraction amount of the goaf is cut off, and therefore the extraction action point of the buried pipe is changed.
Further, the drawer box 2 is manufactured by using two iron plates with the thickness of at least 5mm, a 10mm gap is reserved between the iron plates, and then the iron plates are welded on the iron pipe 1 after being cored according to the size of the iron pipe. A 10mm gap is reserved in the drawer box 2, three sides of the gap are sealed by electric welding, the other side of the gap is convenient to insert the blocking plate 3, and a square flange 5 is welded on the side edge of the drawer box 2.
Further, the blocking plate 3 is machined by using an iron plate with the thickness of 5mm, and round corners are formed at the periphery of the blocking plate, so that the blocking plate is prevented from being inserted into the drawer box 2.
furthermore, the device for blocking the buried pipe in the goaf must be installed in front of the buried pipe extraction tee (close to the direction of the goaf), the distance between the buried pipe extraction tee can be determined according to the length of a heat dissipation zone of a coal seam of the coal mine, and after the drainage of the bypass pipe is performed, the blocking plate can be used for blocking the inner section of the buried pipe for extraction.
Furthermore, a rubber pad serving as an pad is arranged on one surface of the drawer box close to the extraction tee joint, and the sealing effect can be achieved after the plugging plate 3 is inserted.
By using the goaf pipe burying and breaking device, the pipe burying and extracting action points can be relatively and fixedly distributed in the goaf heat dissipation zone, so that the gas flow in the oxidation zone is reduced or avoided, the self oxidation speed of top (bottom) float coal in the oxidation zone is greatly reduced, and finally the float coal enters the suffocation zone. According to the spontaneous combustion three-zone division of the goaf, the gas flow of the oxidation zone of the goaf can be effectively controlled, the occurrence of fire accidents of the goaf can be greatly reduced, and a good using effect is achieved.
The parts of the present invention not described in detail are the known techniques of those skilled in the art. Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (3)
1. the utility model provides a disconnected pipe device for coal mine goaf pipe laying, it includes iron pipe (1) of cylinder, is connected with flange (4) at the both ends of iron pipe (1), and iron pipe (1) is connected its characterized in that through flange (4) and pipe laying: the middle of the iron pipe (1) is fixedly connected through a square drawer box (2), three sides of the drawer box (2) are sealed, an opening is formed in the side edge of the drawer box, a square flange (5) is fixedly connected to the opening, a blocking plate (3) capable of being pulled out is arranged in a hole of the square flange (5), and the outer side of the square flange (5) is connected with a square flange cover (6) through a bolt.
2. The pipe breaking device for the buried pipe of the goaf of the coal mine according to claim 1, characterized in that: drawer box (2) are two square flat plate structures of symmetrical arrangement, and the interval between two flat plates is greater than the thickness of closure plate (3), and three side between two flat plates is welded seal structure, and it has the round hole to open in dull and stereotyped centre, and iron pipe (1) inserts in the round hole and with dull and stereotyped welded connection.
3. The pipe breaking device for the buried pipe of the goaf of the coal mine according to claim 1, characterized in that: the blocking plate (3) is of a square flat plate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920462848.4U CN209780949U (en) | 2019-04-08 | 2019-04-08 | Pipe breaking device for buried pipe in coal mine goaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920462848.4U CN209780949U (en) | 2019-04-08 | 2019-04-08 | Pipe breaking device for buried pipe in coal mine goaf |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209780949U true CN209780949U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920462848.4U Active CN209780949U (en) | 2019-04-08 | 2019-04-08 | Pipe breaking device for buried pipe in coal mine goaf |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209780949U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882234A (en) * | 2019-04-08 | 2019-06-14 | 贵州盘江精煤股份有限公司 | A kind of disconnected pipe structure for coal mine gob pipe laying |
-
2019
- 2019-04-08 CN CN201920462848.4U patent/CN209780949U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882234A (en) * | 2019-04-08 | 2019-06-14 | 贵州盘江精煤股份有限公司 | A kind of disconnected pipe structure for coal mine gob pipe laying |
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