CN113290889A - Intelligent coal mine gas drainage system - Google Patents
Intelligent coal mine gas drainage system Download PDFInfo
- Publication number
- CN113290889A CN113290889A CN202110561214.6A CN202110561214A CN113290889A CN 113290889 A CN113290889 A CN 113290889A CN 202110561214 A CN202110561214 A CN 202110561214A CN 113290889 A CN113290889 A CN 113290889A
- Authority
- CN
- China
- Prior art keywords
- buckle
- gas drainage
- plate
- drainage system
- coal mine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 238000005260 corrosion Methods 0.000 claims abstract description 21
- 230000007797 corrosion Effects 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000013016 damping Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 9
- 239000012943 hotmelt Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 abstract description 14
- 230000008018 melting Effects 0.000 abstract description 14
- 239000004831 Hot glue Substances 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/04—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
- B29C65/30—Electrical means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to the technical field of gas drainage pipeline repair, in particular to an intelligent coal mine gas drainage system which comprises two buckling plates, wherein heating elements and protection elements thereof are arranged on the inner ring surfaces of the two buckling plates; the beneficial effects are that: the intelligent coal mine gas drainage system provided by the invention is matched with the hot melting pipe for use, after the hole-broken corrosion-resistant gas drainage hose is cut off, the hot melting pipe is sleeved at the end parts of the two sections of the cut-off corrosion-resistant gas drainage hose, then the two groups of buckle plates are buckled at the outer side of the hot melt adhesive, the hot melting pipe can be heated by starting the heating pipe, and the heated hot melting pipe is tightly wrapped at the outer sides of the two sections of the corrosion-resistant gas drainage hose to play a role in connection and sealing.
Description
Technical Field
The invention relates to the technical field of gas drainage pipeline repair, in particular to an intelligent coal mine gas drainage system.
Background
The coal mine gas extraction is to drill a coal seam and a gas gathering area, connect a drill hole on a special pipeline, and extract gas in the coal seam and a goaf to the ground by using extraction equipment for utilization; or into the total return air flow. The extracted gas not only is an important measure for reducing the gas emission amount in the mining process, preventing the gas from exceeding the limit and accumulating and preventing gas explosion and coal and gas outburst accidents, but also can change harm into benefit and be developed and utilized as the coal associated resource.
Among the prior art, intelligence colliery gas drainage system mainly adopts the pipeline drainage gas, and corrosion-resistant gas drainage hose is in some places of being not convenient for lay the stereoplasm steel pipe to corrosion-resistant gas drainage hose, adopts corrosion-resistant gas drainage hose drainage gas in the mine usually, but because the on-the-spot ground unevenness in colliery, the cracked problem of corrosion-resistant gas drainage hose wearing and tearing easily appears, take place to leak when leading to the gas drainage, at present, constructor adopts the sticky tape winding sealed, and the effect is not good.
Disclosure of Invention
The invention aims to provide an intelligent coal mine gas drainage system to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an intelligence colliery gas drainage system, includes the buckle, the buckle is provided with two, and the interior anchor ring of two buckles all is provided with heating member and guard piece, and the surface of buckle is provided with the connecting plate, and the surface of buckle is provided with flexible subassembly of pulling, and flexible subassembly of pulling is connected with the heat insulating board through the connecting strip, and the interior anchor ring of heat insulating board has been seted up and has been scratched and get the groove, and the outer anchor ring of one of them buckle is provided with the energy supply subassembly, be provided with the wire connecting piece between energy supply subassembly and the buckle, and two buckles piece together the back parcel in the outside of hot melt pipe, the hot melt pipe box is established in the outside of corrosion-resistant gas drainage hose.
Preferably, the pinch plates are of circular arc-shaped plate structures, the two pinch plates are hinged, the connecting plates are of square plate structures, and the two groups of connecting plates are connected through bolts.
Preferably, heating member and protection piece include the heating pipe, and the heating pipe is fixed at the inner ring surface of buckle, and the heating pipe is provided with a plurality ofly, and a plurality of heating pipes equidistance equidimension are arranged along the inner ring surface of buckle and are distributed, and the protection rack is convex frame construction, and the protection rack enclosure is in the outside of a plurality of heating pipes.
Preferably, the telescopic traction assembly comprises a traction rod, the traction rod is of a T-shaped cylinder structure, the traction rod is inserted into the accommodating groove, the accommodating groove is formed in the surface of the buckle plate, a baffle ring is sleeved on the outer side of the traction rod and is of a circular ring plate-shaped structure, the baffle ring is fixed at an opening of the accommodating groove, and a damping limiting part is arranged at the end part of the traction rod.
Preferably, the damping limiting part comprises a damping ring and a sucker, the damping ring is of a circular ring structure with a circular arc-shaped section, the damping ring is sleeved outside the end plate body of the traction rod, and the sucker is fixed on the circular surface of the end plate body of the traction rod.
Preferably, the energy supply subassembly includes the mount pad, and the mount pad is fixed on the outer anchor ring of buckle, and the mount pad is square frame structure, and the top surface of mount pad is convex curved surface, and the inside battery that is provided with of cell body of mount pad, the notch of mount pad are pegged graft and are had the shrouding, and the surface of shrouding is provided with the screw, and the screw runs through behind the shrouding spiro union in the bottom surface of mount pad, and the bottom surface of shrouding is provided with the pulley.
Preferably, the wire connecting piece includes the wire, connects battery and heating pipe respectively after the both ends of wire pass corresponding through wires hole, and the through wires hole is provided with two sets ofly, and two sets of through wires holes are seted up respectively on the surface of buckle and mount pad, and the outside cover of wire is equipped with the reason spool, and the reason spool is fixed between buckle and mount pad, and the louvre has been seted up on the surface of reason spool.
Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:
1. the intelligent coal mine gas drainage system provided by the invention is matched with the hot melting pipe for use, after the hole-broken corrosion-resistant gas drainage hose is cut off, the hot melting pipe is sleeved at the end parts of the two sections of the cut-off corrosion-resistant gas drainage hose, then the two groups of buckle plates are buckled at the outer side of the hot melt adhesive, the hot melting pipe can be heated by starting the heating pipe, and the heated hot melting pipe is tightly wrapped at the outer sides of the two sections of the corrosion-resistant gas drainage hose to play a role in connection and sealing;
2. according to the intelligent coal mine gas drainage system, the traction rod is inserted into the surface of the buckle plate, the end part of the traction rod is connected with the heat insulation plate through the connecting strip, the heat insulation plate is drawn out when the hot melt adhesive is heated, the heat insulation plate is pushed into one side of the inner ring of the buckle plate after the hot melt adhesive is heated, and then the buckle plate is pushed to move to the next to-be-repaired leak along the corrosion-resistant gas drainage hose;
3. according to the intelligent coal mine gas drainage system, the detachable sealing plate is additionally arranged at the bottom of the mounting base, so that the storage battery can be conveniently replaced, the pulley is additionally arranged at the bottom of the sealing plate, so that a repair tool can be conveniently moved, the wire arrangement pipe is additionally arranged on the outer side of the wire for protection, and the heat dissipation holes are formed in the surface of the wire arrangement pipe, so that the heat dissipation of a groove body where the storage battery is located is realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of the structure at B in FIG. 1;
FIG. 4 is a schematic view of the receiving groove structure of the present invention;
fig. 5 is an enlarged view of the structure at C in fig. 4.
In the figure: buckle 1, protection rack 2, heating pipe 3, connecting plate 4, accomodate groove 5, traction lever 6, fender ring 7, damping circle 8, sucking disc 9, connecting strip 10, thermal-insulated board 11, mount pad 12, battery 13, shrouding 14, pulley 15, through wires hole 16, wire 17, reason line pipe 18, louvre 19, dig and get groove 20, hot melt pipe 21, corrosion-resistant gas drainage hose 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: an intelligent coal mine gas drainage system comprises two buckle plates 1, wherein the buckle plates 1 are arranged, the two buckle plates 1 are assembled and then wrapped on the outer sides of hot melting pipes 21, the hot melting pipes 21 are sleeved on the outer sides of corrosion-resistant gas drainage hoses 22, the inner ring surfaces of the two buckle plates 1 are respectively provided with a heating element and a protection element thereof, each heating element and protection element comprises a heating pipe 3, the heating pipes 3 are fixed on the inner ring surfaces of the buckle plates 1, the heating pipes 3 are arranged in a plurality, the heating pipes 3 are distributed along the inner ring surfaces of the buckle plates 1 in an equidistant equal size mode, a protection net rack 2 is of an arc-shaped frame structure, the protection net rack 2 is enclosed on the outer sides of the heating pipes 3, a connecting plate 4 is arranged on the surface of each buckle plate 1, the buckle plates 1 are of an arc-shaped plate structure, the two buckle plates 1 are hinged, the connecting plate 4 is of a square-shaped plate structure, and the two groups of connecting plates 4 are connected through bolts;
the surface of the buckle plate 1 is provided with a telescopic traction assembly, the telescopic traction assembly comprises a traction rod 6, the traction rod 6 is of a T-shaped cylinder structure, the traction rod 6 is inserted in a containing groove 5, the containing groove 5 is formed in the surface of the buckle plate 1, a baffle ring 7 is sleeved on the outer side of the traction rod 6, the baffle ring 7 is of a circular plate structure, the baffle ring 7 is fixed at an opening of the containing groove 5, the end of the traction rod 6 is provided with a damping limiting part, the damping limiting part comprises a damping ring 8 and a suction cup 9, the damping ring 8 is of a circular ring structure with a circular arc-shaped section, the damping ring 8 is sleeved on the outer side of a plate body at the end of the traction rod 6, the suction cup 9 is fixed on the circular surface of the plate body at the end of the traction rod 6, the telescopic traction assembly;
an energy supply component is arranged on the outer annular surface of one buckle plate 1 and comprises a mounting seat 12, the mounting seat 12 is fixed on the outer annular surface of the buckle plate 1, the mounting seat 12 is of a square frame structure, the top surface of the mounting seat 12 is of a circular arc curved surface, a storage battery 13 is arranged inside a groove body of the mounting seat 12, a sealing plate 14 is inserted into a notch of the mounting seat 12, screws are arranged on the surface of the sealing plate 14 and penetrate through the sealing plate 14 to be screwed on the bottom surface of the mounting seat 12, pulleys 15 are arranged on the bottom surface of the sealing plate 14, a wire connecting piece is arranged between the energy supply component and the buckle plate 1 and comprises wires 17, two ends of each wire 17 penetrate through corresponding wire holes 16 to be respectively connected with the storage battery 13 and a heating pipe 3, two groups of wire holes 16 are arranged on the surfaces of the buckle plate 1 and the mounting seat 12, wire management pipes 18 are sleeved on the outer sides of the wires 17, and the wire management pipes 18 are fixed between the buckle plate 1 and the mounting seat 12, the surface of the line management pipe 18 is provided with a heat dissipation hole 19.
The working principle is as follows: when the device is actually used, the device is cut from a broken hole of the corrosion-resistant gas drainage hose 22, then the two ends of the hot melting pipe 21 are respectively sleeved at the end parts of the two cut corrosion-resistant gas drainage hoses 22, two sections of water pipes are pushed and squeezed, the cut surfaces of the corrosion-resistant gas drainage hoses 22 are butted and contacted, by means of buckling the two groups of buckle plates 1 at the outer sides of the hot melting pipe 21, the two groups of connecting plates 4 are fixed together by means of bolts, fingers are wedged in the scratching grooves 20, the temperature insulation plates 11 are outwards pulled, the temperature insulation plates 11 drive the traction rods 6 to slide along the accommodating grooves 5 through the connecting strips 10, the damping rings 8 are sleeved at the outer sides of the plate bodies at the end parts of the traction rods 6, so that the traction rods 6 are prevented from sliding along the accommodating grooves 5 at will, when the heating pipes 3 are not covered by the temperature insulation plates 11 any more, the heating pipes 3 are started, the heating pipes 3 are heated to heat the hot melting pipe 21, the hot melting pipe 21 is tightly wrapped at the outer sides of the two sections of the corrosion-resistant gas drainage hoses 22, the corrosion-resistant gas drainage hoses 22 at the two ends are connected in a sealing mode, the heat insulation plate 11 is pushed into the inner ring side of the buckle plate 1, and then the buckle plate 1 is pushed to slide along the corrosion-resistant gas drainage hoses 22 to the next broken hole point for repairing.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an intelligence colliery gas drainage system, includes buckle (1), its characterized in that: buckle (1) is provided with two, and the interior anchor ring of two buckles (1) all is provided with heating member and protection piece, and the surface of buckle (1) is provided with connecting plate (4), and the surface of buckle (1) is provided with flexible subassembly of pulling, and flexible subassembly of pulling is connected with thermal insulation board (11) through connecting strip (10), and the interior anchor ring of thermal insulation board (11) has been seted up and has been scratched groove (20), and the outer anchor ring of one of them buckle (1) is provided with the energy supply subassembly, be provided with the wire connecting piece between energy supply subassembly and buckle (1), and two buckles (1) piece group back parcel in the outside of hot melt pipe (21), and hot melt pipe (21) cover is established in the outside of corrosion-resistant gas drainage hose (22).
2. The intelligent coal mine gas drainage system of claim 1, wherein: the buckle plates (1) are of circular arc-shaped plate-shaped structures, the two buckle plates (1) are hinged, the connecting plates (4) are of square plate-shaped structures, and the two groups of connecting plates (4) are connected through bolts.
3. The intelligent coal mine gas drainage system of claim 1, wherein: the heating element and the protection part thereof comprise heating pipes (3), the heating pipes (3) are fixed on the inner annular surface of the pinch plate (1), the heating pipes (3) are arranged in a plurality of modes, the heating pipes (3) are equidistantly distributed along the inner annular surface of the pinch plate (1), the protection net rack (2) is of a circular arc-shaped frame structure, and the protection net rack (2) is enclosed in the outer side of the heating pipes (3).
4. The intelligent coal mine gas drainage system of claim 1, wherein: the telescopic traction assembly comprises a traction rod (6), the traction rod (6) is of a T-shaped cylinder structure, the traction rod (6) is inserted into the accommodating groove (5), the accommodating groove (5) is formed in the surface of the buckle plate (1), a baffle ring (7) is sleeved on the outer side of the traction rod (6), the baffle ring (7) is of a circular ring plate-shaped structure, the baffle ring (7) is fixed at the opening of the accommodating groove (5), and a damping limiting part is arranged at the end part of the traction rod (6).
5. The intelligent coal mine gas drainage system of claim 4, wherein: the damping limiting part comprises a damping ring (8) and a sucker (9), the damping ring (8) is of a circular ring structure with a circular arc-shaped section, the damping ring (8) is sleeved on the outer side of the end plate body of the traction rod (6), and the sucker (9) is fixed on the circular surface of the end plate body of the traction rod (6).
6. The intelligent coal mine gas drainage system of claim 1, wherein: the energy supply assembly comprises a mounting seat (12), the mounting seat (12) is fixed on the outer annular surface of the buckle plate (1), the mounting seat (12) is of a square frame structure, the top surface of the mounting seat (12) is a circular arc-shaped curved surface, a storage battery (13) is arranged inside a groove body of the mounting seat (12), a sealing plate (14) is inserted into a notch of the mounting seat (12), a screw is arranged on the surface of the sealing plate (14), the screw penetrates through the bottom surface of the mounting seat (12) and then is screwed, and a pulley (15) is arranged on the bottom surface of the sealing plate (14).
7. The intelligent coal mine gas drainage system of claim 1, wherein: the wire connecting piece includes wire (17), connects battery (13) and heating pipe (3) respectively behind the through wires hole (16) that correspond is passed at the both ends of wire (17), through wires hole (16) are provided with two sets ofly, set up respectively on the surface of buckle (1) and mount pad (12) in two sets of through wires hole (16), reason line pipe (18) are established to the outside cover of wire (17), reason line pipe (18) are fixed between buckle (1) and mount pad (12), louvre (19) have been seted up on the surface of reason line pipe (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110561214.6A CN113290889A (en) | 2021-05-22 | 2021-05-22 | Intelligent coal mine gas drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110561214.6A CN113290889A (en) | 2021-05-22 | 2021-05-22 | Intelligent coal mine gas drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113290889A true CN113290889A (en) | 2021-08-24 |
Family
ID=77324060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110561214.6A Pending CN113290889A (en) | 2021-05-22 | 2021-05-22 | Intelligent coal mine gas drainage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113290889A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6483996A (en) * | 1987-09-24 | 1989-03-29 | Tokyo Gas Co Ltd | Method and device for partially repairing duct from inner surface thereof |
| JP2014199129A (en) * | 2013-03-29 | 2014-10-23 | 積水化学工業株式会社 | Device for repairing resin pipe and method for repairing protective layer of resin pipe |
| KR101541650B1 (en) * | 2014-06-20 | 2015-08-03 | 이근홍 | Duct Repair Method and Duct Repair Device |
| CN206318933U (en) * | 2016-12-30 | 2017-07-11 | 成都市双流川双热缩制品有限公司 | Heat molten type, which is mended, hinders film |
| CN209088242U (en) * | 2018-12-13 | 2019-07-09 | 重庆工程职业技术学院 | Electrical outer naked wire quick-restoring device |
| CN209925862U (en) * | 2019-03-25 | 2020-01-10 | 吉林大黑山钼业股份有限公司 | Quick repair equipment of pipeline for mine |
| CN110886928A (en) * | 2019-12-12 | 2020-03-17 | 周强 | Auxiliary device for welding and repairing large pipeline |
-
2021
- 2021-05-22 CN CN202110561214.6A patent/CN113290889A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6483996A (en) * | 1987-09-24 | 1989-03-29 | Tokyo Gas Co Ltd | Method and device for partially repairing duct from inner surface thereof |
| JP2014199129A (en) * | 2013-03-29 | 2014-10-23 | 積水化学工業株式会社 | Device for repairing resin pipe and method for repairing protective layer of resin pipe |
| KR101541650B1 (en) * | 2014-06-20 | 2015-08-03 | 이근홍 | Duct Repair Method and Duct Repair Device |
| CN206318933U (en) * | 2016-12-30 | 2017-07-11 | 成都市双流川双热缩制品有限公司 | Heat molten type, which is mended, hinders film |
| CN209088242U (en) * | 2018-12-13 | 2019-07-09 | 重庆工程职业技术学院 | Electrical outer naked wire quick-restoring device |
| CN209925862U (en) * | 2019-03-25 | 2020-01-10 | 吉林大黑山钼业股份有限公司 | Quick repair equipment of pipeline for mine |
| CN110886928A (en) * | 2019-12-12 | 2020-03-17 | 周强 | Auxiliary device for welding and repairing large pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207664546U (en) | A kind of fast-type electric power protecting tube | |
| US9640697B2 (en) | Solar energy collection systems and methods | |
| CN110459971A (en) | It is a kind of can be to the distributed board outdoor of rainwater-collecting with cooling structure | |
| CN2884632Y (en) | Clamping butt-opening power cable sheath | |
| CN113290889A (en) | Intelligent coal mine gas drainage system | |
| CN210439515U (en) | Assembled curtain wall construction | |
| CN201608218U (en) | Buried battery cupboard | |
| CN108054710A (en) | A kind of accumulated snow prevention device for power cable | |
| CN203422868U (en) | Photovoltaic research work bench and house model integration experiment system | |
| CN205558027U (en) | Multifunctional wall body | |
| CN213619897U (en) | Conveying device for carbon fiber gas cylinders | |
| CN210370181U (en) | Fender is enclosed with monitoring formula to building engineering construction | |
| CN210771903U (en) | Easy-radiating light guide pipe lighting device for underground parking lot | |
| CN220064460U (en) | Spliced PVC porous grid pipe | |
| CN221137694U (en) | New energy automobile fills electric pile | |
| CN2146068Y (en) | Special ABS sleeve pipeline for building electric concealed wire pre-embedding | |
| CN215267501U (en) | Electric power protection pipe sleeve with excellent protection effect | |
| CN212538864U (en) | Novel complete device for recovering heat energy of exhaust steam | |
| CN217692412U (en) | Bridge with good fireproof effect | |
| CN220013866U (en) | Antifreezing outdoor fire hydrant | |
| CN211908331U (en) | Underground cable wiring protection device for power engineering | |
| CN211405427U (en) | Underground pipe gallery cable joint protective housing | |
| CN212696302U (en) | Intelligent communication networking management machine for Internet of things | |
| CN213755484U (en) | Multifunctional lithium battery protection plate | |
| CN213574206U (en) | Coal mine ventilation lifesaving pipeline with real-time positioning function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210824 |