CN201310376Y - Safety protection system for drilling and spraying orifice - Google Patents
Safety protection system for drilling and spraying orifice Download PDFInfo
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- CN201310376Y CN201310376Y CNU2008201811441U CN200820181144U CN201310376Y CN 201310376 Y CN201310376 Y CN 201310376Y CN U2008201811441 U CNU2008201811441 U CN U2008201811441U CN 200820181144 U CN200820181144 U CN 200820181144U CN 201310376 Y CN201310376 Y CN 201310376Y
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Abstract
A safety protection system for drilling and spraying orifice is characterized in that the system comprises an orifice multi-way device which is provided with a drill rod channel, an extensible connecting pipe made of high-intensity filament fiber cloth, a flexible steel wire helically arranged is sewed in an interlayer of the high-intensity filament fiber cloth, a pair of soft coal storing and slag discharge devices which are symmetrically connected on the outlet openings on two sides of a three-way slag discharge device, and a coal gas purifier provided with a dust collecting box; one side wall of the dust collecting box is communicated with an extracting and mining channel of the orifice multi-way device through a gas inlet pipe, and the other side wall thereof is communicated with the extracting and mining channel through a gas outlet pipe. The utility model can ensure that the drill rod normally advances, retreats and rotates, meanwhile, not only the forward jetting of the coal and the methane gas in the orifices can be blocked, but also the coal and the methane gas in the orifices are smoothly drained into a set device, therefore, the safety protection system radically eliminates the potential safety hazards caused by the intense orifice spraying of drilling or the protrusion of boreholes.
Description
Technical field
The utility model prevents the security protection system of tunnel gas exceeding limit when relating to construction drill under the coal mine.A kind of hole spray safety protection system that is applied in the projecting coal bed construction extraction borehole process of more specifically saying so.
Background technology
By hole pumping and mining gas one of main means of comprehensive regulation gas under the coal mine, but it is projecting coal bed, especially spray orifice takes place through the moment of being everlasting in severe outburst coal in implementing the process of drilling, a large amount of coal dusts and high concentration gas moment are from the boring ejection, very easily cause tunnel gas exceeding limit and coal dust to pile up, make gas be in runaway condition, not only cause gas exceeding limit, bottle coal to impact and hurt sb.'s feelings, make personnel to suffocate, also may cause gas explosion accident simultaneously.
Administering aspect the gas spray orifice, the existing blowout hookup that uses is that the coal during with spray orifice is directed in the container of setting by the pipeline that seals with gas, prevents that coal and gas from entering the tunnel, and causing transfinites.But in actual use, because this often stops up pipeline when spray orifice, the original gas of high pressure overflows at each pipe joint place, a large amount of coal dusts stops up boring, make rig generation underground drilling accident, while irony coal storage container volume heaviness, add that the underworkings space is limited, the existing blowout hookup volume that uses is big, it is big to account for lane space, not only be difficult to the powder that puts in a liberal supply of coal when big or spray orifice is serious at coal-bed gas pressure, and use very inconveniently, many researchs have been done in domestic and international many collieries to this, but still fail practical method so far, hindered the progress of drilling, gas control work is seriously lagged behind, mine production encounters difficulties.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of drill hole spray safety protection system is provided, to guarantee in normal advance and retreat of drilling rod and rotation, the forward of coal and gas sprays in can the block hole, coal dust and the gas that sprays in the hole can be drained in the device of setting smoothly again, make the gas major part of ejection be incorporated into the extraction system by gas channel, coal dust enters storage slag device, simultaneously also suction extraction system rapidly of the entrained high concentration gas in the coal dust prevents the accumulation of tunnel gas exceeding limit and coal dust; Creep into for projecting coal bed safety and to create more advantageous conditions, fundamentally eliminate the outstanding potential safety hazard of bringing of strong spray orifice of boring or boring.
The characteristics of the utility model drill hole spray safety protection system are that its system's formation comprises:
One is provided with the many exchange devices in aperture of drilling rod passage, on the inside wall of drilling rod passage sprayer is set; The coal dust passage is branch road and is connected the sidepiece of drilling rod passage towards the below, goes out mouth down; The extraction passage is branch road and is connected on the drilling rod passage sidepiece towards the top, and outlet up;
One telescopic tube connector is to be material with the high strength filament cloth, by making flexible steel wire is set in the shape of a spiral in the interlayer of high strength filament cloth; Tube connector last young, end mouth is big, coal dust passages suitable for reading with it and in the many exchange devices in aperture are connected, its end mouth is cinder outlet, and is communicated with the threeway slag-draining device;
A pair of soft coal storage slag-draining device is on the both sides outlet opening that symmetry is connected described threeway slag-draining device, and far-end is provided with the gas pumping device, and the gas outlet opening of gas pumping device forms with the extraction passage by the extraction branch road and is communicated with;
One gas purifier has the case of gathering dust, and the front of the case that gathers dust is openable skimming door, and a sidewall of the case that gathers dust is by the extraction channel connection of the many exchange devices of air inlet pipe and aperture; Opposite side forms with the extraction passage by escape pipe and is communicated with.
The design feature of the utility model drill hole spray safety protection system also is:
In the case that gathers dust of gas purifier, the air inlet runner the place ahead that is positioned at air inlet pipe is provided with baffle plate; The air inlet runner top that is positioned at air inlet pipe is provided with drencher; The air flow inlet place that is positioned at escape pipe is provided with filter screen.
Described soft coal storage slag-draining device is inclined to set, and an end that is connected with described threeway slag-draining device is high-end, and an end that is connected with the gas pumping device is a low side.
Use of the present utility model makes can shunt coal and gas rapidly when drilling the generation spray orifice by the passage of setting, gas enters the extraction passage and drains, coal dust enters the coal storage slag-draining device, simultaneously the gas in the coal dust is also discharged rapidly, has solved behind the spray orifice tunnel gas exceeding limit and coal dust and has piled up problem.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model be arranged on the many exchange devices in locational aperture, aperture in being can be rapidly with coal dust and gas shunting.
2, telescopic tube connector can become the quick flow channel of coal dust and gas at the moment spray orifice in the utility model, prevents that the many exchange devices in aperture from stopping up.
3, in the utility model the threeway slag-draining device be provided with can moment during spray orifice with coal dust by the threeway slag-draining device rapidly to the both sides shunting, and import in the quick slag-draining device of soft coal storage.
4, soft coal storage slag-draining device can prevent effectively that coal dust from entering and causes gas exceeding limit and coal dust to pile up in the underworkings in the utility model.
5, the gas pumping device can in time be taken the high dense gas in the coal dust away in the utility model, and preventing that gas from overflowing to cause transfinites.
6, gas purifier can make coal be separated rapidly once more with gas in the utility model, prevents that coal dust from directly entering into the extraction main pipe, thereby purifies the extraction system, guarantees that the extraction system stability is reliable, realizes the continuous extraction of high negative pressure.
Description of drawings
Fig. 1 constitutes schematic diagram for the utility model system.
Fig. 2 is the utility model aperture many exchange devices structural representation.
Fig. 3 is the telescopic tube connector structural representation of the utility model.
Fig. 4 is the soft coal storage slag-draining device of a utility model structural representation.
Fig. 5 is the utility model utility model gas purifier structural representation.
Number in the figure: the many exchange devices in 1 aperture, 11 drilling rod passages, 12 coal dust passages, 13 extraction passages, 14 sprayers, 2 tube connectors, 21 flexible steel wires, 3 threeway slag-draining devices, 4 soft coal storage slag-draining devices, 41 slide fasteners, 5 extraction devices, 6 gas purifier, 61 gather dust case, 62 drenchers, 63 filter screens, 64 plate washers, 65 skimming doors, 66 air inlet pipe, 67 escape pipes, 7 extraction passages, 8 hole sealing tubes, 9 extraction branch roads, 10 borings, 20 tunnels.
Below pass through the specific embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
The specific embodiment
Referring to Fig. 1, Fig. 2, the many exchange devices 1 in aperture are set, have drilling rod passage 11 on it, sprayer 14 is set on the inside wall of drilling rod passage 11; Coal dust passage 12 is branch road and is connected the sidepiece of drilling rod passage 11 towards the below, goes out mouth down; Extraction passage 13 is branch road and is connected on the drilling rod passage 11 sidepiece towards the top, and outlet up.Coal dust and gas by separately corridor diversion and implement atomizing de-dusting, can guarantee normal rig drilling depth with this when spray orifice took place in the many exchange devices in aperture.
Referring to Fig. 1, Fig. 3, a telescopic tube connector 2 is set, be to be material with the high strength filament cloth, by making flexible steel wire 21 is set in the shape of a spiral in the interlayer of high strength filament cloth; Tube connector 2 last young, end mouth is big, coal dust passages 12 suitable for reading with it and in the many exchange devices 1 in aperture are connected, its end mouth is cinder outlet, and is communicated with threeway slag-draining device 3; Tube connector 2 makes the coal dust of ejection in the many exchange devices in aperture arrive threeway slag-draining device 3 rapidly as moment quick flow channel of coal dust during spray orifice, prevents that the many exchange device in aperture 1 from being stopped up by coal dust.
Referring to Fig. 1, Fig. 4, a pair of soft coal storage slag-draining device 4 is set, this device is cylindrical body, adopt the high strength filament cloth, sidepiece seals with slide fastener 41, a pair of soft coal storage slag-draining device 4 is in the bilateral symmetry setting of threeway slag-draining device 3, one end of soft coal storage slag-draining device 4 is communicated with the outlet opening of threeway slag-draining device 3, the other end is provided with gas pumping device 5, soft coal storage slag-draining device 4 is inclined to set, an end that is connected with threeway slag-draining device 3 is high-end, and an end that is connected with gas pumping device 5 is a low side.The gas outlet opening of gas pumping device 5 forms with extraction passage 7 by extraction branch road 9 and is communicated with; Moment is during spray orifice, enter threeway slag-draining device 3 from the coal dust of tube connector 2 after, to the both sides shunting, enter into soft coal storage slag-draining device 4 rapidly.This form of structure is to cause coal dust to pile up and gas exceeding limit in the tunnel for preventing that coal dust from entering, and treats the stable back bug dusting of spray orifice, and each interface position uses snap joint to connect, in order to dismounting.Gas pumping device 5 can in time be taken the high dense gas in the soft coal storage slag-draining device 4 away, and preventing that gas from overflowing to cause transfinites.
Referring to Fig. 1, Fig. 5, gas purifier 6 has the case of gathering dust 61, and the front of the case 61 that gathers dust is openable skimming door 65, and a sidewall of the case 61 that gathers dust is communicated with the extraction passage 13 of the many exchange devices 1 in aperture by air inlet pipe 66; Opposite side forms with extraction passage 7 by escape pipe 67 and is communicated with; In the case 61 that gathers dust, be positioned at air inlet runner the place ahead of air inlet pipe 66, baffle plate 64 is set; The air inlet runner top that is positioned at air inlet pipe 66 is provided with drencher 62; The air flow inlet place that is positioned at escape pipe 67 is provided with filter screen 63.
Shown in Figure 5, the central axis that air inlet pipe 66 and escape pipe 67 be set respectively with the upright case 61 in the vertical directions angle at 45 that gathers dust, can keep gas communication smooth and easy like this.This form of structure makes coal separate once more, prevent that coal dust from directly entering into the extraction main pipe with gas, thereby purifies the extraction system, guarantees that the extraction system stability is reliable, realizes the continuous extraction of high negative pressure, gas purifier apart from the position of rig more than or equal to 5 meters.
Install and use:
1, the hole sealing tube 8 of the many exchange devices 1 in aperture with boring 10 is connected closely by flange, screw is fixed, and installs the belt packing ring additional with the flange junction, and packing ring internal orifice slightly larger in diameter prevents to rub and takes spark out of in drill pipe diameter.To must not stablize after device connects and swing.
2, telescopic tube connector 2 is installed on the coal dust channel outlet of the many exchange devices 1 in aperture.Use snap joint and fixed, swing when preventing spray orifice; Extraction passage 13 is connected by pipeline on the air inlet pipe 66 of gas purifier 6, and the escape pipe 67 with gas purifier 6 is communicated with extraction passage 7 by pipeline again.
3, threeway slag-draining device 3 is installed below telescopic tube connector 2, for preventing that threeway slag-draining device 3 and tube connector 2 from stopping up, the end mouth minimum point of tube connector 2 is not less than 0.5 meter apart from the road face, with the iron wire binding firmly, about two slag-drip openings be symmetrical arranged, avoid crooked.Require the many exchange devices 1 in aperture, tube connector 2 and threeway slag-draining device to be arranged in the same perpendicular, and linearly connect.
4, in 3 liang of side outlet symmetries of threeway slag-draining device the soft coal storage slag-draining device 4 of high strength is installed.Soft coal storage slag-draining device 4 is hung on the wire rope of taking root in tunnel 20, be in line and certain gradient is arranged, the outer end is landed and is connected gas pumping device 5, being beneficial to coal dust shunts to both sides fast, the length at two ends, the left and right sides is more than or equal to 5 meters, each connector uses snap joint to connect closely, prevents that spray orifice stressed back disconnection from making coal dust and gas overflow to cause and transfiniting.
5, gas pumping device 5 is communicated with gas pumping passage 7 by the extraction branch road.
Claims (3)
1, drill hole spray safety protection system is characterized in that system's formation comprises:
One is provided with the many exchange devices in aperture (1) of drilling rod passage (11), and sprayer (14) is set on the inside wall of described drilling rod passage (11); Coal dust passage (12) is branch road and is connected the sidepiece of drilling rod passage (11) towards the below, goes out mouth down; Extraction passage (13) is branch road and is connected on the drilling rod passage (11) towards the sidepiece of top, and outlet up;
One telescopic tube connector (2) is to be material with the high strength filament cloth, by making flexible steel wire (21) is set in the shape of a spiral in the interlayer of high strength filament cloth; Described tube connector (2) last young, end mouth is big, is connected with the coal dust passage (12) in its many exchange devices in suitable for reading and described aperture (1), its end mouth is cinder outlet, and is communicated with threeway slag-draining device (3);
A pair of soft coal storage slag-draining device (4), be on the both sides outlet opening that symmetry is connected described threeway slag-draining device (3), far-end is provided with gas pumping device (5), and the gas outlet opening of described gas pumping device (5) forms with extraction passage (7) by extraction branch road (9) and is communicated with;
One gas purifier (6) has the case of gathering dust (61), and the front of the case that gathers dust (61) is openable skimming door (65), and a sidewall of the case that gathers dust (61) is communicated with the extraction passage (13) of the many exchange devices in described aperture (1) by air inlet pipe (66); Opposite side forms with extraction passage (7) by escape pipe (67) and is communicated with.
2, drill hole spray safety protection system according to claim 1, its feature be in described gas purifier (6), the case that gathers dust (61) in, be positioned at air inlet runner the place ahead of air inlet pipe (66), baffle plate (64) is set; The air inlet runner top that is positioned at air inlet pipe (66) is provided with drencher (62); The air flow inlet place that is positioned at escape pipe (67) is provided with filter screen (63).
3, drill hole spray safety protection system according to claim 1, it is characterized in that described soft coal storage slag-draining device (4) is inclined to set, an end that is connected with described threeway slag-draining device (3) is high-end, and an end that is connected with described gas pumping device (5) is a low side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201811441U CN201310376Y (en) | 2008-12-12 | 2008-12-12 | Safety protection system for drilling and spraying orifice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201811441U CN201310376Y (en) | 2008-12-12 | 2008-12-12 | Safety protection system for drilling and spraying orifice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201310376Y true CN201310376Y (en) | 2009-09-16 |
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ID=41107630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201811441U Expired - Fee Related CN201310376Y (en) | 2008-12-12 | 2008-12-12 | Safety protection system for drilling and spraying orifice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201310376Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413399B (en) * | 2008-12-12 | 2011-02-16 | 淮南矿业(集团)有限责任公司 | Drill hole spray safety protection system |
| CN102635394A (en) * | 2012-05-09 | 2012-08-15 | 中国矿业大学 | Gas, water and coal separation device of coal-mine gas spray hole |
-
2008
- 2008-12-12 CN CNU2008201811441U patent/CN201310376Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413399B (en) * | 2008-12-12 | 2011-02-16 | 淮南矿业(集团)有限责任公司 | Drill hole spray safety protection system |
| CN102635394A (en) * | 2012-05-09 | 2012-08-15 | 中国矿业大学 | Gas, water and coal separation device of coal-mine gas spray hole |
| CN102635394B (en) * | 2012-05-09 | 2013-12-18 | 中国矿业大学 | Gas, water and coal separation device of coal-mine gas spray hole |
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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: 20090916 Termination date: 20121212 |