CN204402419U - A kind of moisture coal bed drilling sealing of hole end cap - Google Patents
A kind of moisture coal bed drilling sealing of hole end cap Download PDFInfo
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- CN204402419U CN204402419U CN201420648732.7U CN201420648732U CN204402419U CN 204402419 U CN204402419 U CN 204402419U CN 201420648732 U CN201420648732 U CN 201420648732U CN 204402419 U CN204402419 U CN 204402419U
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Abstract
The utility model discloses a kind of moisture coal bed drilling sealing of hole end cap, this device is sewed up by cotton bag and absorbing resin material and is made, selected by the described cotton bag making this end cap, the yarn count of cotton is 16 or 32, density is 60*60, described absorbing resin material is have the high absorbent function of the heavy hundreds of of absorptance self to several thousand times of water, and water retention property is excellent, hydrogel is become once imbibition, even if pressurization is also difficult to the water-absorbing resin that water is separated, the expansion multiple of described end cap is greater than 400 times, Bulking Time is less than 5min, this sealing of hole end cap uses when coal mine underground coal bed drilling and sealing, there is the sealing of hole application apparatus of rapid expanding characteristic, this device of the present utility model and using method effectively can carry out shutoff to moisture boring, easy to operate, and speed of expansion is fast, and shutoff is tight, improve drilling and sealing rate.
Description
Technical field
The utility model belongs to coal mine gas extraction drill hole hole sealing technology field, relates to a kind of moisture coal bed drilling sealing of hole end cap.
Background technology
Coal mine down-hole drilling hole sealing technology is that mine gas administers the key technology with research, and the design of wind control plug is the important factor in order of sealing of hole effect.Towel or cotton yarn bondage is often used to use in drainage tube or piezometer tube at dry coal seam drilling and sealing plug, also polyurethane material can be used to make plug, but in moisture coal bed drilling, often gather large water gaging, often because of cotton yarn or towel bondage not compact, current mistake etc. met by polyurethane, cause plug shutoff not tight, sealing of hole stream loses, and sealing of hole effect is bad.
The utility model provides a kind of moisture coal bed drilling sealing of hole end cap and using method thereof according to above-mentioned weak point of the prior art exactly.This device effectively can carry out shutoff to moisture boring, easy to operate, and speed of expansion is fast, and shutoff is tight, improves drilling and sealing rate.
Utility model content
The purpose of this utility model is to provide a kind of moisture coal bed drilling sealing of hole end cap, and application of the present utility model, effectively can carry out shutoff to moisture boring, easy to operate, and speed of expansion is fast, and shutoff is tight, improves drilling and sealing rate.
The utility model provides a kind of moisture coal bed drilling sealing of hole end cap, it is characterized in that, this device is sewed up by cotton bag and water-absorbing resin and is made, selected by the cotton bag making this end cap, the yarn count of cotton is 16 or 32, and density is 60*60, the water absorption of water-absorbing resin be self heavy 100-1000 doubly, and there is water retaining function, be hydrogel after imbibition, the expansion multiple of end cap is greater than 400 times, and Bulking Time is less than 5min.
Further, the Stitching density of end cap is sewed up at 14 ~ 16/3cm.
Further, in cylinder state after end cap expands, diameter is 130 ~ 160mm, and length is 500 ~ 800mm.
Further, end cap is designed with ties up an inserting hole, and inserting hole is metal construction.
Further, end cap also added Portland cement and sulphoaluminate cement clinker, and both match ratios are 5% ~ 15%, and water/binder ratio is 60%.
In addition, a kind of moisture coal bed drilling sealing of hole end cap that the utility model additionally provides a kind of utilization carrys out the using method of sealing of hole, and it is characterized in that, it specifically comprises the following steps:
(1) by plug bondage assigned address on gas pipe;
(2) pre-buried water injection pipe under each plug;
(3) end cap is together inserted coal bed drilling together with gas pipe, water injection pipe;
(4) to water injection pipe water filling certain hour, after end cap expands, water injection pipe is extracted;
(5) injection hole sealing is started;
Wherein, the selection of time principle to water injection pipe water filling in described step (4) is: when carrying out sealing of hole to parallel hole, and the time of water filling is 5min, when carrying out sealing of hole to lower perform hole, the time of water filling is 10min, and if waterline does not reach plug position, need water filling to make it expand.
The utility model effectively can carry out shutoff to moisture boring, easy to operate, and speed of expansion is fast, and shutoff is tight, improves drilling and sealing rate.
Accompanying drawing explanation
Fig. 1 is sealing of hole plug of the present utility model carries out sealing of hole use-case to parallel hole;
Fig. 2 is sealing of hole plug of the present utility model carries out sealing of hole use-case to lower perform hole.
Wherein, 1, end cap, 2, gas pipe, 3, water injection pipe, 4, boring.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
As shown in Figure 1-2, the utility model provides a kind of moisture coal bed drilling sealing of hole end cap 1, this device is sewed up by cotton bag and absorbing resin material and is made, selected by the cotton bag making this end cap 1, the yarn count of cotton is 16 or 32, density is 60*60, absorbing resin material is have the high absorbent function of the heavy hundreds of of absorptance self to several thousand times of water, and water retention property is excellent, hydrogel is become once imbibition, even if pressurization is also difficult to the water-absorbing resin that water is separated, the expansion multiple of end cap 1 is greater than 400 times, Bulking Time is less than 5min, this sealing of hole end cap 1 uses when coal mine underground coal bed drilling and sealing, there is the sealing of hole application apparatus of rapid expanding characteristic.
Wherein, the Stitching density of end cap 1 is sewed up at 14 ~ 16/3cm., in cylinder state after end cap 1 expands, diameter is 130 ~ 160mm, and length is 500 ~ 800mm.End cap 1 is designed with ties up an inserting hole, and inserting hole is metal construction.
The match ratio of Portland cement and sulphoaluminate cement clinker is 5% ~ 15% time, and water/binder ratio is 60%.
In addition, the utility model additionally provides a kind of using method utilizing described a kind of moisture coal bed drilling sealing of hole end cap 1 to carry out sealing of hole, and it specifically comprises the following steps:
(1) by end cap 1 bondage assigned address on gas pipe 2;
(2) pre-buried water injection pipe 3 under each plug;
(3) by end cap 1 together with gas pipe 2, water injection pipe 3 together inserts coal bed drilling 4;
(4) to water injection pipe 3 water filling certain hour, after end cap 1 expands, water injection pipe 3 is extracted;
(5) injection hole sealing is started;
Wherein, the selection of time principle to water injection pipe water filling in described step (4) is: when carrying out sealing of hole to parallel hole, and the time of water filling is 5min, when carrying out sealing of hole to lower perform hole, the time of water filling is 10min, and if waterline does not reach plug position, need water filling to make it expand.
Above embodiment is only for illustration of the utility model; and be not limitation of the utility model; the those of ordinary skill of relevant technical field; when not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (4)
1. a moisture coal bed drilling sealing of hole end cap, it is characterized in that, this device is sewed up by cotton bag and water-absorbing resin and is made, selected by the described cotton bag making this end cap, the yarn count of cotton is 16 or 32, and density is 60*60, the water absorption of described water-absorbing resin be self heavy 100-1000 doubly, and there is water retaining function, be hydrogel after imbibition, the expansion multiple of described end cap is greater than 400 times, and Bulking Time is less than 5min.
2. one according to claim 1 moisture coal bed drilling sealing of hole end cap, is characterized in that, sews up the Stitching density of described end cap at 14 ~ 16/3cm.
3. one according to claim 1 moisture coal bed drilling sealing of hole end cap, is characterized in that, in cylinder state after described end cap expands, diameter is 130 ~ 160mm, and length is 500 ~ 800mm.
4. one according to claim 1 moisture coal bed drilling sealing of hole end cap, is characterized in that, described end cap is designed with ties up an inserting hole, and described inserting hole is metal construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648732.7U CN204402419U (en) | 2014-10-31 | 2014-10-31 | A kind of moisture coal bed drilling sealing of hole end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420648732.7U CN204402419U (en) | 2014-10-31 | 2014-10-31 | A kind of moisture coal bed drilling sealing of hole end cap |
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| Publication Number | Publication Date |
|---|---|
| CN204402419U true CN204402419U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420648732.7U Active CN204402419U (en) | 2014-10-31 | 2014-10-31 | A kind of moisture coal bed drilling sealing of hole end cap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389545A (en) * | 2014-10-31 | 2015-03-04 | 河南神华能源工程有限公司 | Hole sealing plug device for drilled holes in water-bearing coal seam and use method of hole sealing plug device |
-
2014
- 2014-10-31 CN CN201420648732.7U patent/CN204402419U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389545A (en) * | 2014-10-31 | 2015-03-04 | 河南神华能源工程有限公司 | Hole sealing plug device for drilled holes in water-bearing coal seam and use method of hole sealing plug device |
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