CN103452519A - Double-bag sealing device for gas drainage holes - Google Patents
Double-bag sealing device for gas drainage holes Download PDFInfo
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- CN103452519A CN103452519A CN2013103218812A CN201310321881A CN103452519A CN 103452519 A CN103452519 A CN 103452519A CN 2013103218812 A CN2013103218812 A CN 2013103218812A CN 201310321881 A CN201310321881 A CN 201310321881A CN 103452519 A CN103452519 A CN 103452519A
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Abstract
The invention discloses a double-bag sealing device for gas drainage holes, and relates to the field of coal mines. The double-bag sealing device is characterized in that a middle-width hot-melt impression (4) is formed in the middle of each foamed bag (2), and a sealing mechanism (8) is sleeved on each hot-melt impression. The double-bag sealing device has the advantages that the problem of cracking of the periphery of an inner bag of a foaming bag during usage due to the fact that an existing isolation layer of the foaming bag is excessively firmly pressed can be effectively solved; the secondary sealing mechanisms are arranged on the hot-melt impressions, so that the hot-melt impressions are effectively prevented from cracking in a foaming bag transporting procedure; the foaming bags are firmly fixed onto a gas drainage pipe by metal wires or ropes and accordingly can be quantitatively conveyed to specified positions in the gas drainage holes in fixed directions, a plugging effect can be effectively guaranteed, the work efficiency can be greatly improved, and the possibility of safety accidents can be greatly reduced; the double-bag sealing device is simple in structure, convenient to operate and suitable for popularization and application to the mine industry, and the like.
Description
[technical field]
The present invention relates to the field, colliery, relate in particular to a kind of sealing device of gas extraction hole, be specifically related to a kind of two bag disjunctors and be mixed to form two bag sealing devices in the hole that draws out methane of foaming bag by two kinds of components in two bags.
[background technology]
Known, mine is in the process of mining raw coal, and one of maximum potential safety hazard that needs prevention is exactly to prevent that gas from leaking and setting off an explosion in the extraction process; At present, domestic in the process that draws out methane, especially how gas extraction hole being carried out to effectively sealing is a kind of problem demanding prompt solution, the scientific research group in a lot of collieries oneself; Or all carried out a large amount of gas extraction hole shutoff research to producer and the scientific research institutions of colliery production corollary equipment, there is part to be reported in media or disclose in journals and periodicals, patent documentation; Through technical Analysis, find, some is although have certain use value, but, owing to not considering links, is not to go wrong in transportation, in using exactly, goes wrong; Wherein Chinese patent " notice of authorization number, CN200977490Y " discloses the on-the-spot polyurethane foamed bags of a kind of hand, in independent right, describe " the on-the-spot polyurethane foamed bags of the utility model hand is that two kinds of polyurethane foam material isocyanates and polyethers are contained in a bag; and between two kinds of materials, separation layer (3) is arranged; formed two relatively independent inner bags (1) and (2), to prevent haptoreaction in bag.Tear strip of paper used for sealing (5) during use, with manual mode, from outside along the direction of arrow (6) pushing, cause separation layer (3) to break.Manually rubbing and holding, cutting off pointed top (4), becoming outlet, waiting a moment, can pack and filling operation with the extruding of hand appropriateness.Compared with prior art, it is without any need for device, and undesirable gas generates, and does not also need power supply, environmental protection and energy saving.Especially be convenient to on-the-spot the use." content is known, use " separation layer (3) " that sack is divided into two and very easily is subject to the restriction of separation layer thickness, that is to say at the squeeze bag period of the day from 11 p.m. to 1 a.m, if surrounding is not passed through hot pressing, the middle part that is only a tubular sack makes resin and catalyzer respectively in two sacks through heat pressure adhesive, the two ends of two sacks or surrounding are processed bad, " the rash-and-rough way of loading and unloading in carrying of breaking while not only there will be transportation, or the huge inertia of formation that stops in emergency in transportation ", and in use sack also there will be the phenomenon of first being broken by surrounding and affects use and even cause danger.
Further, Chinese patent " notice of authorization CN102052087B " discloses a kind of use polyurethane foamed bags blocked gas drainage hole, " the invention is used the technical characterictic of polyurethane foamed bags blocked gas drainage hole to be to the disclosed technical scheme of this patent independent right: first vertically an end of polyurethane foamed bags is twined and ties up on gas drainage pipe with adhesive tape; wash open and seal in isolation or untie outside spacer assembly with manual mode again, and by rubbing to hold, polyurethane two class materials in bag are sent in gas extraction hole after fully mixing." in; owing to using adhesive tape that the top of polyurethane foamed bags is twined to tie up on gas drainage pipe, " in the accompanying drawing 2 of this patent, show "; be subject to the impact of expansion force or rub the dynamics while holding; be easy to make polyurethane foamed bags to come off; enter gas extraction hole thereby cause polyurethane foamed bags to be expanded not follow gas drainage pipe simultaneously, can not bring into play due plugging action.According to actual shutoff requirement under coal mine, hole sealing depth need be reached 6～10 meters dark, above-mentioned patent " CN102052087B " obviously can't be accomplished quantitative, directed shutoff.
[summary of the invention]
In order to overcome the deficiency existed in background technology, the invention provides a kind of two bag sealing devices of the hole that draws out methane, the present invention is by arranging the hot melt impression at foaming bag middle part, effectively avoided foaming bag in use because existing isolation lamination obtains, too firmly the inner bag surrounding to occur and break, be provided for the sealing mechanism of secondary seal simultaneously on the hot melt impression, avoided preferably foaming bag hot melt impression in transportation to break, simultaneously the present invention will foam and bag be fixed on firmly on gas drainage pipe by wire or rope, can be by the foaming bag quantitatively, the directed position of delivering to appointment in gas extraction hole, guaranteed preferably plugging effect, greatly improve operating efficiency and reduced may waiting that security incident occurs.
For realizing goal of the invention as above, the present invention adopts technical scheme as described below:
A kind of two bag sealing devices of the hole that draws out methane, comprise foaming bag and sealing mechanism, described foaming bag surrounding is provided with wide sealing impression, wide hot melt impression in foaming bag middle part is provided with, in described, wide hot melt impression is connected to the sealing impression of foaming bag opposite side by the sealing impression of foaming bag one side, the point-like setting that wherein the hot melt impression is interval, be connected to form complete hot melt impression by "=" shape hot melt impression between the hot melt impression arranged in the point-like at interval, the foaming bag of described hot melt impression both sides forms respectively independently polyurethane storage bag and the two bag conjoined structures of catalyzer storage bag, be socketed with sealing mechanism on the hot melt impression.
Two bag sealing devices in the described hole that draws out methane, described foaming bag forms by two, wherein a slice includes layer of polyethylene terephthalate, nylon layer, polyester aluminium plating membrane and polyethylene layer arbitrarily, the internal layer of two opposite faces is polyethylene layer, then be outwards polyester aluminium plating membrane, nylon layer successively, outermost layer is layer of polyethylene terephthalate.
Two bag sealing devices in the described hole that draws out methane, described layer of polyethylene terephthalate is PET12, described nylon layer is PA15.
Two bag sealing devices in the described hole that draws out methane, described hot melt impression be shaped as waveform; Or shaped form; Or zigzag; Or any one in rectilinear structure.
Two bag sealing devices in the described hole that draws out methane, described sealing mechanism comprises depression bar, axis body and " U " shape plate, " U " shape groove is formed at the top of " U " shape plate, and an end of depression bar connects an end of " U " shape plate by axis body, and depression bar is in described " U " shape groove.
Two bag sealing devices in the described hole that draws out methane, the other end of described depression bar is provided with pressure handle.
Two bag sealing devices in the described hole that draws out methane, another replacing structure of described sealing mechanism is clips, described clips comprises spring, bearing pin, a side clamp and another clamp, be respectively equipped with the bearing pin gripper shoe on a described side clamp and another clamp opposite face, two bearing pin gripper shoes form and are articulated and connected by bearing pin, be socketed with spring on bearing pin, the bottom of a side clamp and another clamp is connected respectively an end of semi-circular projection and semicircle depression.
Two bag sealing devices in the described hole that draws out methane, the other end of described semi-circular projection and semicircle depression is respectively equipped with the extension board of extension.
Two bag sealing devices in the described hole that draws out methane, the 3rd replacing structure of described sealing mechanism comprises " recessed " shape plate and " protruding " shape plate, one end of described " recessed " shape plate connects by thin slice with an end of " protruding " shape plate, the interface of " recessed " shape plate middle part is provided with groove, at the other end of " recessed " shape plate, is provided with buckle; Be provided with the boss of the described groove of correspondence " recessed " shape plate at the middle part of " protruding " shape plate, described groove and boss are pegged graft, and at the other end of " protruding " shape plate, are provided with end plate, described end plate and buckle clamping.
Adopt technical scheme as above, the present invention has superiority as described below:
Two bag sealing devices in a kind of hole that draws out methane of the present invention, the present invention is by arranging the point-like hot melt impression at interval at foaming bag middle part, and be connected to form complete hot melt impression by "=" shape hot melt impression between the hot melt impression arranged in the point-like at interval, effectively avoided foaming bag in use because existing isolation lamination obtains, too firmly the inner bag surrounding to occur and break, the present invention simultaneously is provided for the sealing mechanism of secondary seal on the hot melt impression, avoided preferably foaming bag hot melt impression in transportation to break, simultaneously the present invention will foam and bag be fixed on firmly on gas drainage pipe by wire or rope, can be by the foaming bag quantitatively, directed deliver to the assigned address in gas extraction hole, guaranteed preferably plugging effect, greatly improve operating efficiency and reduced the possibility that security incident occurs, the present invention has the structure structure, the characteristics such as easy to operate, be adapted at promotion and application in the mine industry.
[accompanying drawing explanation]
Fig. 1 is the fixed form structural representation of foaming bag in the present invention;
Fig. 2 be the present invention foam the bag structural representation;
Fig. 3 is the plan structure schematic diagram of Fig. 2 in the present invention;
Fig. 4 be the present invention foam the bag the sealing means structural representation;
Fig. 5 is the local structure for amplifying schematic diagram of Fig. 4 of the present invention;
Fig. 6 is the structural representation of sealing mechanism of the present invention;
Fig. 7 is that the first of sealing mechanism of the present invention is replaced the form structure schematic diagram;
Fig. 8 is that the second of sealing mechanism of the present invention is replaced the form structure schematic diagram;
Fig. 9 is the connected structure schematic diagram of Fig. 8 middle slot of the present invention and boss;
In the drawings: 1, gas drainage pipe; 2, foaming bag; 3, wire; 4, hot melt impression; 4.1, "=" shape hot melt impression; 5, sealing impression; 6, polyurethane storage bag; 7, catalyzer storage bag; 8, sealing mechanism; 9, layer of polyethylene terephthalate; 10, nylon layer; 11, polyester aluminium plating membrane; 12, polyethylene layer; 13, pressure handle; 14, depression bar; 15, " U " shape groove; 16, axis body; 17, " U " shape plate; 18, clips; 18.1, semi-circular projection; 18.2, semicircle depression; 18.3, extension board; 18.4, spring; 18.5, the bearing pin gripper shoe; 18.6, bearing pin; 18.7, a side clamp; 18.8, another clamp; 19, " recessed " shape plate; 20, buckle; 21, groove; 22, thin slice connects; 23, " protruding " shape plate; 24, boss; 25, end plate.
[specific embodiment]
Can explain in more detail the present invention by the following examples, the present invention is not limited to the following examples;
Two bag sealing devices in 1～9 described a kind of hole that draws out methane by reference to the accompanying drawings, comprise foaming bag 2 and sealing mechanism, wherein said foaming bag 2 forms by two, wherein a slice includes layer of polyethylene terephthalate 9 arbitrarily, nylon layer 10, polyester aluminium plating membrane 11 and polyethylene layer 12, the polyethylene layer 12 of hot melt for occurring by heating in the internal layer of two opposite faces, then be outwards polyester aluminium plating membrane 11 successively, nylon layer 10, outermost layer is layer of polyethylene terephthalate 9, wherein said layer of polyethylene terephthalate 9 is PET12, described nylon layer 10 is PA15, further in foaming bag 2 surroundings, be provided with the wide sealing impression 5 for seal foaming bag 2 peripheries, described sealing impression 5 necessary hot melt in reflow process is abundant, avoid in use cracking, wide hot melt impression 4 in foaming bag 2 middle parts are provided with further, in wide hot melt impression 4 by the sealing impression 5 of foaming bag 2 one sides, connected to the sealing impression 5 of foaming bag 2 opposite sides, described hot melt impression 4 be shaped as waveform, or shaped form, or zigzag, or any one in rectilinear structure, the point-like setting that wherein hot melt impression 4 is interval, be connected to form complete hot melt impression 4 by "=" shape hot melt impression 4.1 between the hot melt impression 4 arranged in the point-like at interval, "=" shape hot melt impression 4.1 is set between the hot melt impression 4 wherein arranged by the point-like at interval, can make foaming bag 2 that comparatively firmly sealing is arranged in transportation, and when foaming bag 2 in use, the polyurethane storage bag 6 of foaming bag 2 both sides and the liquid in catalyzer storage bag 7 are by pushing and just can first break through "=" shape hot melt impression 4.1 in hot melt impression 4 gently, after "=" shape hot melt impression 4.1 is rushed to open, the hot melt impression 4 of the point-like setting at interval is easy to be washed open thereupon, finally realize that the liquid in polyurethane storage bag 6 and catalyzer storage bag 7 merges foaming, the foaming bag 2 of wherein said hot melt impression 4 both sides forms respectively independently polyurethane storage bag 6 and 7 pairs of bag conjoined structures of catalyzer storage bag, in order to guarantee foaming bag 2 in transportation and to cause 2 foaming of foaming bag in depositing process because hot melt impression 4 is poorly sealed, and then be socketed with the sealing mechanism 8 of special use of the present invention on hot melt impression 4,
Above-mentioned sealing mechanism 8 comprises depression bar 14, axis body 16 and " U " shape plate 17, " U " shape groove 15 is formed at the top of " U " shape plate 17, one end of depression bar 14 connects an end of " U " shape plate 17 by axis body 16, depression bar 14 is in described " U " shape groove 15, and the other end of described depression bar 14 is provided with pressure handle 13;
Wherein another replacing structure of sealing mechanism 8 is clips 18, described clips 18 comprises spring 18.4, bearing pin 18.6, one side clamp 18.7 and another clamp 18.8, be respectively equipped with bearing pin gripper shoe 18.5 on a described side clamp 18.7 and another clamp 18.8 opposite faces, two bearing pin gripper shoes 18.5 form and are articulated and connected by bearing pin 18.6, be socketed with spring 18.4 on bearing pin 18.6, the bottom of one side clamp 18.7 and another clamp 18.8 is connected respectively an end of semi-circular projection 18.1 and semicircle depression 18.2, the other end of described semi-circular projection 18.1 and semicircle depression 18.2 is respectively equipped with the extension board 18.3 of extension, described clips 18 in actual use, while using for fear of clips 18 because external force comes off, can on the hot melt impression 4 on foaming bag 2, place a pole, then after wrapping pole with foaming bag 2, clamping foaming bag 2 by clips 18 again gets final product,
The 3rd replacing structure of wherein said sealing mechanism 8 comprises " recessed " shape plate 19 and " protruding " shape plate 23, one end of described " recessed " shape plate 19 is connected 22 with an end of " protruding " shape plate 23 by thin slice and connects, the interface of " recessed " shape plate 19 middle part is provided with groove 21, at the other end of " recessed " shape plate 19, is provided with buckle 20; Be provided with the boss 24 of correspondence " recessed " shape plate 19 described grooves 21 at the middle part of " protruding " shape plate 23, described groove 21 is pegged graft with boss 24, the other end at " protruding " shape plate 23 is provided with end plate 25, and described end plate 25 and buckle 20 clampings, be provided with arc-shaped transition between the both sides of described boss 24 and end face.
The present invention, in specific implementation process, operates in accordance with the following steps:
The first step, at first the sealing mechanism 8 arranged that will foam on bag 2 takes off, then use two hands polyurethane storage bag 6 and the catalyzer storage bag 7 of extruding foaming bag 2 both sides simultaneously, now the liquid in polyurethane storage bag 6 and catalyzer storage bag 7 is by pushing and just can first break through "=" shape hot melt impression 4.1 in hot melt impression 4 gently, after "=" shape hot melt impression 4.1 is rushed to open, the hot melt impression 4 of the point-like setting at interval is easy to be washed open thereupon, and then realizes that the liquid in polyurethane storage bag 6 and catalyzer storage bag 7 merges;
Second step, catch respectively the two ends of foaming bag 2 with two hands, repeatedly fall up and down folding foaming bag 2, make the liquid blending in foaming bag 2, the time of falling the folding approximately was controlled at about 2 minutes;
The 3rd step, after the liquid crude in polyurethane storage bag 6 and catalyzer storage bag 7 is mixed, it is put in to palm of the hand both hands rubs, note not staying dead angle when rubbing, rubbing to material temperature during a little more than body temperature, stop rubbing, the time of rubbing was approximately about 1 minute, if the time of rubbing was approximately about 2 minutes in the winter time;
The 4th step, be interval with at least two foaming bags 2 on gas drainage pipe 1, wherein foaming bag 2 utilizes wire 3 or rope body or adhesive tape that mixed foaming bag 2 is bundled on the outer edge surface of gas drainage pipe 1 firmly, further in order to make foaming bag 2 can realize preferably directed gas extraction hole being carried out to shutoff, in each foaming bag 2 outer cover, the string bag is arranged, the two ends of the described string bag are fastened on the two ends of foaming bag 2, and wherein the string bag has certain tension force;
The 5th step, the gas drainage pipe 1 of the good foaming bag 2 of binding is filled in gas extraction hole, within several minutes, post-foaming bag 2 can foam, and then realizes the shutoff to gas extraction hole.
Wherein, in the 4th step, according to actual needs, usually on gas drainage pipe 1, be interval with three foaming bags 2; Wherein said wire 3 is hand-drawn wire or rice silk, it should be noted that the present invention is by utilizing wire 3 bag that will foam 2 to be fixed on firmly on gas drainage pipe 1, avoided preferably gas drainage pipe 1 bag 2 that foams when filling in gas extraction hole occur loosening or come off, effectively realized quantitative, the directed shutoff of gas extraction hole.
The present invention is not only applicable in mine, to the shutoff of gas extraction hole, to be equally applicable to various forms of hole bodies are carried out to shutoff, is equally applicable to all trades and professions.
Part not in the detailed description of the invention is prior art.
The embodiment selected in this article in order to disclose purpose of the present invention, currently think suitablely, still, will be appreciated that, the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and invention scope.
Claims (10)
1. two bag sealing devices in the hole that draws out methane, comprise foaming bag (2) and sealing mechanism (8), it is characterized in that: described foaming bag (2) surrounding is provided with wide sealing impression (5), wide hot melt impression (4) in foaming bag (2) middle part is provided with, in described, wide hot melt impression (4) is connected to the sealing impression (5) of foaming bag (2) opposite side by the sealing impression (5) of foaming bag (2) one sides, the point-like setting that wherein hot melt impression (4) is interval, be connected to form complete hot melt impression (4) by "=" shape hot melt impression (4.1) between the hot melt impression (4) arranged in the point-like at interval, the foaming bag (2) of described hot melt impression (4) both sides forms respectively independently polyurethane storage bag (6) and the two bag conjoined structures of catalyzer storage bag (7), be socketed with sealing mechanism (8) on hot melt impression (4).
2. two bag sealing devices in the hole that draws out methane according to claim 1, it is characterized in that: described foaming bag (2) forms by two, wherein a slice includes layer of polyethylene terephthalate (9), nylon layer (10), polyester aluminium plating membrane (11) and polyethylene layer (12) arbitrarily, the internal layer of two opposite faces is polyethylene layer (12), then be outwards polyester aluminium plating membrane (11), nylon layer (10) successively, outermost layer is layer of polyethylene terephthalate (9).
3. two bag sealing devices in the hole that draws out methane according to claim 2 is characterized in that: described layer of polyethylene terephthalate (9) is PET12, and described nylon layer (10) is PA15.
4. two bag sealing devices in the hole that draws out methane according to claim 1 is characterized in that: described hot melt impression (4) be shaped as waveform; Or shaped form; Or zigzag; Or any one in rectilinear structure.
5. two bag sealing devices in the hole that draws out methane according to claim 1, it is characterized in that: described sealing mechanism (8) comprises depression bar (14), axis body (16) and " U " shape plate (17), " U " shape groove (15) is formed at the top of " U " shape plate (17), one end of depression bar (14) connects an end of " U " shape plate (17) by axis body (16), depression bar (14) is in described " U " shape groove (15).
6. two bag sealing devices in the hole that draws out methane according to claim 5, it is characterized in that: the other end of described depression bar (14) is provided with pressure handle (13).
7. two bag sealing devices in the hole that draws out methane according to claim 1, it is characterized in that: another replacing structure of described sealing mechanism (8) is clips (18), described clips (18) comprises spring (18.4), bearing pin (18.6), one side clamp (18.7) and another clamp (18.8), be respectively equipped with bearing pin gripper shoe (18.5) on a described side clamp (18.7) and another clamp (18.8) opposite face, two bearing pin gripper shoes (18.5) form and are articulated and connected by bearing pin (18.6), be socketed with spring (18.4) on bearing pin (18.6), the bottom of one side clamp (18.7) and another clamp (18.8) is connected respectively an end of semi-circular projection (18.1) and semicircle depression (18.2).
8. two bag sealing devices in the hole that draws out methane according to claim 7 is characterized in that: the other end of described semi-circular projection (18.1) and semicircle depression (18.2) is respectively equipped with the extension board (18.3) of extension.
9. two bag sealing devices in the hole that draws out methane according to claim 1, it is characterized in that: the 3rd replacing structure of described sealing mechanism (8) comprises " recessed " shape plate (19) and " protruding " shape plate (23), one end of one end of described " recessed " shape plate (19) and " protruding " shape plate (23) is connected (22) by thin slice and connects, the interface of " recessed " shape plate (19) middle part is provided with groove (21), at the other end of " recessed " shape plate (19), is provided with buckle (20); Be provided with the boss (24) of the described groove of correspondence " recessed " shape plate (19) (21) at the middle part of " protruding " shape plate (23), described groove (21) is pegged graft with boss (24), the other end at " protruding " shape plate (23) is provided with end plate (25), described end plate (25) and buckle (20) clamping.
10. two bag sealing devices in the hole that draws out methane according to claim 9, is characterized in that: between the both sides of described boss (24) and end face, be provided with arc-shaped transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103218812A CN103452519A (en) | 2013-07-29 | 2013-07-29 | Double-bag sealing device for gas drainage holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103218812A CN103452519A (en) | 2013-07-29 | 2013-07-29 | Double-bag sealing device for gas drainage holes |
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| Publication Number | Publication Date |
|---|---|
| CN103452519A true CN103452519A (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103218812A Pending CN103452519A (en) | 2013-07-29 | 2013-07-29 | Double-bag sealing device for gas drainage holes |
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| Country | Link |
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| CN (1) | CN103452519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437603A (en) * | 2015-08-09 | 2017-02-22 | 阜新贝格科技有限公司 | Resin hole sealing device |
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| CN201670428U (en) * | 2010-05-13 | 2010-12-15 | 金誉(河南)包装有限公司 | Packaging bag |
| CN202193277U (en) * | 2011-01-13 | 2012-04-18 | 扬子江药业集团广州海瑞药业有限公司 | Medicine package bag |
| CN202358437U (en) * | 2011-12-02 | 2012-08-01 | 河北同成矿业科技有限公司 | Hole sealing bag for gas drainage hole |
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| CN202596659U (en) * | 2012-05-31 | 2012-12-12 | 中煤科工集团重庆研究院 | Cylinder hole-sealing bag |
| CN203008957U (en) * | 2012-12-14 | 2013-06-19 | 焦作市新筑王材料科技有限公司 | Synthetic polyurethane foaming bag for gas extraction hole sealing |
| CN203008850U (en) * | 2012-12-27 | 2013-06-19 | 中国平煤神马能源化工集团有限责任公司天成实业分公司 | Separation type hole-sealing bag |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3578079A (en) * | 1969-11-12 | 1971-05-11 | Schlumberger Technology Corp | Apparatus for plugging well bores with hardenable fluent substances |
| US3750750A (en) * | 1972-04-05 | 1973-08-07 | Schlumberger Technology Corp | Apparatus for plugging well bores with hardenable fluent substances |
| US3872925A (en) * | 1973-04-24 | 1975-03-25 | Gearhart Owen Industries | Through-tubing bridge plug |
| CN201670428U (en) * | 2010-05-13 | 2010-12-15 | 金誉(河南)包装有限公司 | Packaging bag |
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| CN202358437U (en) * | 2011-12-02 | 2012-08-01 | 河北同成矿业科技有限公司 | Hole sealing bag for gas drainage hole |
| CN202596660U (en) * | 2012-05-31 | 2012-12-12 | 中煤科工集团重庆研究院 | Cylindrical kneading type hole sealing bag |
| CN202596659U (en) * | 2012-05-31 | 2012-12-12 | 中煤科工集团重庆研究院 | Cylinder hole-sealing bag |
| CN203008957U (en) * | 2012-12-14 | 2013-06-19 | 焦作市新筑王材料科技有限公司 | Synthetic polyurethane foaming bag for gas extraction hole sealing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437603A (en) * | 2015-08-09 | 2017-02-22 | 阜新贝格科技有限公司 | Resin hole sealing device |
| CN106437603B (en) * | 2015-08-09 | 2018-11-02 | 阜新贝格科技有限公司 | Resin hole packer |
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