CN201486586U - Water injecting and hole sealing device for coal body of coal face - Google Patents
Water injecting and hole sealing device for coal body of coal face Download PDFInfo
- Publication number
- CN201486586U CN201486586U CN2009202244912U CN200920224491U CN201486586U CN 201486586 U CN201486586 U CN 201486586U CN 2009202244912 U CN2009202244912 U CN 2009202244912U CN 200920224491 U CN200920224491 U CN 200920224491U CN 201486586 U CN201486586 U CN 201486586U
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- water injecting
- hole
- coal
- hole sealing
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Abstract
The utility model provides a water injecting and hole sealing device for a coal body of a coal face. The water injecting and hole sealing device for the coal body of the coal face comprises a water injecting hose, wherein the back end of the water injecting hose connected with a flow meter and pressure gauge; the other end of the flow meter and pressure gauge is connected with a water inlet hose; the front section of the water injecting hose is wound with a dry sea tangle, and the diameter of the wound water injection hose corresponds to the diameter of a water injecting hole; and a gap between the back section of the water injecting hose and the inner wall of the water injecting hole is blocked by rapid cement. Based on a principle that the sea tangle expands after encountering water, the water injecting and hole sealing device for the coal body of the coal face selects the high-quality dry sea tangle to wrap 3-meter rapid cement on the front end of the water injecting pipe and 5-meter rapid cement on the back section of the water injecting pipe so as to avoid the phenomenon that water in the injecting hole is easy to leak outwards around an orifice and on an anchor rod eye along with the rise of the water injecting pressure in the hole. The water injecting and hole sealing device for the coal body of the coal face uses a dual hole sealing technology of the dry sea tangle and the rapid cement, so the hole sealing quality is high and the hole sealing cost is low.
Description
Technical field
The utility model relates to a kind of coal mining work plane coal body water filling hole sealing device.
Background technology
The water filling of coal mining work plane coal body is one of most important dust prevention of stope, in the coal seam, playing some borings before the back production in advance, by boring injection pressure water, make it infiltrate coal body inside, increase the moisture of coal, thereby reduce the dust-producing amount of seam mining process, effect a radical cure coal dust from the source.
Effectively implementing the coal body water filling is one of major measure of control coal-face coal dust, and the coal body water filling is to effect a radical cure coal dust from the source.The long-armed coal body water filling of work plane in the past owing to be subjected to the restriction of drilling depth and hole sealing technology quality, does not reach design effect.
Conventional hole packer sealing of hole (referring to Fig. 2) is generally adopted in work plane longwell coal body water filling in the past, and hole packer is knocked down 1.5～2 meters sealing of holes inwards.Adopt the hole packer sealing of hole easily outwards to leak from square, effect is bad; Adopt quick cement sealing of hole in addition, hole sealing depth is greater than 6 meters, but effect still is undesirable.
Summary of the invention
The purpose of this utility model provides the coal face coal water filling hole sealing device that a kind of sealing quality is good, cost is low.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of coal face coal water filling hole sealing device, comprise: the water filling sebific duct, the rear end of water filling sebific duct is connected with the flowmeter pressure meter, the manometric other end of flowmeter is connected with into water sebific duct, it is characterized in that: the leading portion of water filling sebific duct is wound with dried sea-tangle, diameter after the winding is corresponding with the diameter of water injection hole, and the back segment of water filling sebific duct and the gap shutoff of water injection hole inwall have quick cement.
According to described coal face coal water filling hole sealing device, it is characterized in that: it is 3 meters that the leading portion of described water filling sebific duct is wound with dried sea-tangle; The gap shutoff of the back segment of described water filling sebific duct and water injection hole inwall has the quick cement of 5 meters length.
The utility model takes to utilize this principle of sea-tangle water-swellable at last through repetition test, promptly select the dried sea-tangle of high-quality for use, twine 3 meters of water injection pipes with sea-tangle, the quick cement that covering is 5 meters, stopped rising, the phenomenon that outwards overflow at around water is easy in the aperture in the injection hole and square place along with water injection pressure in the hole.
The utility model is by improving the technical quality of drilling and sealing, and by analysis, coal body moisture increment rate all reaches more than 2.0% after the water filling, administers the coal-face coal dust from the source, and excellent popularization use value is arranged, and obtains good social benefit.
The utility model adopts dried sea-tangle and the quick dual hole sealing technology of cement, and sealing quality is good and the sealing of hole expense is low.The utility model cost is low, the utility model uses the every hole of sealing of hole cost, back only to need 20 yuan, the hole packer that replaces surplus the cost 1000 yuan, saved fund greatly, main is to improve sealing quality, has reached longwell water filling designing requirement, has effectively reduced dust-producing amount from the source, stop coal dust and fly upward, guaranteed mine safety production.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 carries out the method for coal body water filling sealing of hole for existing use plugging device.
In the accompanying drawing: 1, water injection hole; 2, dried sea-tangle; 3, quick cement; 4, coal body; 5, anchor pole; 6, water filling sebific duct; 7, flowmeter pressure meter; 8, valve; 9, water inlet sebific duct; 10, plugging device; 11, leak.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
The utility model takes to utilize this principle of sea-tangle water-swellable at last through repetition test, promptly select the dried sea-tangle of high-quality for use, twine 3 meters of water injection pipes with sea-tangle, the quick cement that covering is 5 meters, stopped rising, the phenomenon that outwards overflow at around water is easy in the aperture in the injection hole and square place along with water injection pressure in the water injection hole.
The utility model coal face coal water filling hole sealing device comprises as shown in Figure 1: water filling sebific duct 6, and the rear end of water filling sebific duct 6 is connected with flowmeter pressure meter 7, and the other end of flowmeter pressure meter 7 is connected with into water sebific duct 9, on the water inlet sebific duct 9 valve 8 is housed.Coal body water filling sealing of hole may further comprise the steps: the dried sea-tangle of selecting high-quality for use, earlier dried sea-tangle 2 is prewetted, make it become soft, twine the leading portion of water filling sebific duct 6 then with dried sea-tangle 2, diameter corresponding with the diameter of water injection hole 1 (identical) after it is twined, the water filling sebific duct 6 that will twine then behind the dried sea-tangle stretches in the water injection hole 1; Then with the gap of the back segment of water filling sebific duct 6 and water injection hole 1 inwall with quick cement 3 shutoff.
The leading portion that twines water filling sebific duct 6 with dried sea-tangle 2 in the utility model is 3 meters; The gap of the back segment of water filling sebific duct 6 and water injection hole 1 inwall is with 5 meters length of quick cement 3 shutoff.
Water filling sebific duct 6, water inlet sebific duct 9 can be selected existing wire braided hose for use in the utility model.Flowmeter pressure meter 7, valve 8 are existing general instrument.Cement 3 is public commercially available prod fast, and full name is the quick cement anchoring agent of ZC-Z-2 type.
A kind of coal face coal water filling hole sealing device, as shown in Figure 1, comprise: water filling sebific duct 6, the rear end of water filling sebific duct 6 is connected with flowmeter pressure meter 7, the other end of flowmeter pressure meter 7 is connected with into water sebific duct 9, the leading portion of water filling sebific duct 6 is wound with dried sea-tangle 2, and the diameter of diameter after the winding and water injection hole 1 is corresponding, and the gap shutoff of the back segment of water filling sebific duct 6 and water injection hole 1 inwall has quick cement 3.It is 3 meters that the leading portion of described water filling sebific duct 6 is wound with dried sea-tangle 2; The gap shutoff of the back segment of described water filling sebific duct 6 and water injection hole 1 inwall has the quick cement 3 of 5 meters length.
Claims (2)
1. coal face coal water filling hole sealing device, comprise: water filling sebific duct (6), the rear end of water filling sebific duct (6) is connected with flowmeter pressure meter (7), the other end of flowmeter pressure meter (7) is connected with into water sebific duct (9), it is characterized in that: the leading portion of water filling sebific duct (6) is wound with dried sea-tangle (2), the diameter of diameter after the winding and water injection hole (1) is corresponding, and the gap shutoff of the back segment of water filling sebific duct (6) and water injection hole (1) inwall has quick cement (3).
2. coal face coal water filling hole sealing device according to claim 1 is characterized in that: it is 3 meters that the leading portion of described water filling sebific duct (6) is wound with dried sea-tangle (2); The gap shutoff of the back segment of described water filling sebific duct (6) and water injection hole (1) inwall has the quick cement (3) of 5 meters length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202244912U CN201486586U (en) | 2009-08-28 | 2009-08-28 | Water injecting and hole sealing device for coal body of coal face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202244912U CN201486586U (en) | 2009-08-28 | 2009-08-28 | Water injecting and hole sealing device for coal body of coal face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486586U true CN201486586U (en) | 2010-05-26 |
Family
ID=42425468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202244912U Expired - Fee Related CN201486586U (en) | 2009-08-28 | 2009-08-28 | Water injecting and hole sealing device for coal body of coal face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486586U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562126A (en) * | 2011-12-31 | 2012-07-11 | 枣庄矿业(集团)有限责任公司田陈煤矿 | Hole sealing device for coal seam water infusion long hole |
| CN104746517A (en) * | 2015-04-03 | 2015-07-01 | 中建三局集团有限公司 | Anchor rod retaining and protecting system with overall length below pressure-bearing water head |
-
2009
- 2009-08-28 CN CN2009202244912U patent/CN201486586U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562126A (en) * | 2011-12-31 | 2012-07-11 | 枣庄矿业(集团)有限责任公司田陈煤矿 | Hole sealing device for coal seam water infusion long hole |
| CN104746517A (en) * | 2015-04-03 | 2015-07-01 | 中建三局集团有限公司 | Anchor rod retaining and protecting system with overall length below pressure-bearing water head |
| CN104746517B (en) * | 2015-04-03 | 2017-10-13 | 中建三局集团有限公司 | A kind of suspension roof support system of total length below artesian head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20100828 |