CN103758569B - A kind of breaking roof Collapsed zone grouting filling system - Google Patents
A kind of breaking roof Collapsed zone grouting filling system Download PDFInfo
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- CN103758569B CN103758569B CN201410036535.4A CN201410036535A CN103758569B CN 103758569 B CN103758569 B CN 103758569B CN 201410036535 A CN201410036535 A CN 201410036535A CN 103758569 B CN103758569 B CN 103758569B
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- filling
- work plane
- stowboard
- supervisor
- grouting
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Abstract
The invention discloses a kind of breaking roof Collapsed zone grouting filling system, it comprises grouting filling tunnel and is arranged in the stowboard filling supervisor in stowboard, reducing leads to more, sleeve pipe, wear-resisting sebific duct and inlet well, grouting filling roadway layout is above work plane, the upper reducing of installing of stowboard filling supervisor leads to more, wear-resisting sebific duct by connector be connected to reducing many logical on, inlet well is at a certain angle in fan-shaped distribution, and its degree of depth reaches caving zone, sleeve pipe by cement paste and inlet well cemented together, and sleeve pipe is connected with wear-resisting sebific duct by connector.Compared with prior art, the mode that this system is combined by grouting and stowboard slip casting, can realize to thin, in thick and high seam breaking roof Collapsed zone grouting filling; This system works face slip casting and stowboard slip casting substantially without impact, adopt that to fill contradiction little on working surface production, substantially increase filling operation face output.
Description
Technical field
The present invention relates to a kind of coal mine filling system, particularly relate to a kind of breaking roof Collapsed zone grouting filling system.
Background technology
At present, the widely used coal mine filling technology of China, mainly contain paste body filling technology, paste-like backfill technology, high*.water packing technology, ultrahigh water filling technique, waste filling technology etc., above filling technique is all carry out filling under top board complete condition, must ensure certain loading time and space while filling.Although above-mentioned filling technique has formed comparatively full-order system and technique, but above-mentioned various filling method is all carry out filling to goaf under the complete prerequisite of goaf top plate, for breaking roof coal seam immediate roof with adopting with emitting, Roof Control difficulty, inapplicable with the goaf filling under breaking roof condition.
Serious for China's " three times " pressure coal, and breaking roof coal seam accounts for the present situation of significant proportion in coal in China reserves, design research and development " breaking roof Collapsed zone grouting filling system " is for realizing goaf filling under breaking roof condition, and liberation " three times " pressure coal is significant.
Coal in China situation started the trend occurring progressively gliding from 2011, bring economic benefit of coal enterprises thus and be deteriorated, weaken the ability to bear of filling cost, if carry out whole fill, then charging quantity is large, filling cost is high.Breaking roof Collapsed zone grouting filling, as a kind of mode of part filling, can reduce charging quantity under the premise that security is guaranteed, controls filling cost, has important impetus for the application within coal mines of expansion filling mining.
CN102444419A pipe-hauling-type filling system for thin seam breaking roof discloses a kind of girdle breaking roof hosted-type filling system, although it achieves girdle goaf filling under breaking roof condition, but still there is segmental defect in its system, such as, the high-order filling steel pipe described in its system only exists under the prerequisite of gob side entry retaining; Filling slurry injects caved gangue space by the filling pipe being arranged in gob floor under pump function, its injecting height is limited, only be only applicable to girdle, large for thick and medium-thickness seam caving zone height, only by being arranged in filling pipe on floor undulation, to carry out its filling effect of pumping to caved gangue space poor.Therefore be necessary to develop a kind of be applicable to thin, in the Collapsed zone grouting filling system of thick and high seam.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the present invention proposes a kind of breaking roof Collapsed zone grouting filling system, this filling system is not only applicable to girdle, and be applicable to that centering is thick, the filling of high seam, effectively can control movement by this system, control subsidence.
Technical solution of the present invention comprises:
A kind of breaking roof Collapsed zone grouting filling system, comprise the work plane filling supervisor be arranged in return airway, high-pressure rubber pipe, work plane filling pipe and several work plane filling arms, described work plane filling supervisor is provided with reducing two lead to, described high-pressure rubber pipe is led to by described reducing two to be received on described work plane filling supervisor, the other end of described high-pressure rubber pipe connects described work plane filling pipe, work plane filling arm described in several is connected side by side along described work plane filling pipe, and described work plane filling arm is fixedly connected on the working surface hydraulic support between goaf and coal seam, mobile with the movement of hydraulic support, the filling mouth of described work plane filling arm extend into goaf, and arrange along seat earth,
Described filling system also comprises grouting filling tunnel and is arranged in the stowboard filling supervisor in stowboard, reducing leads to more, sleeve pipe, wear-resisting sebific duct and inlet well, described grouting filling roadway layout is above work plane, and it is axially parallel to advance of the face direction, the described reducing of the upper installation of described stowboard filling supervisor leads to more, described wear-resisting sebific duct by connector be connected to described reducing many logical on, described inlet well is at a certain angle in fan-shaped distribution, and the described inlet well degree of depth reaches caving zone, described sleeve pipe by cement paste and inlet well cemented together, and described sleeve pipe is connected with described wear-resisting sebific duct by connector.
As a preferred version of the present invention, more than the number of inlet well 1 of the number of active lanes that how logical above-mentioned reducing is (number+grouting filling filling supervisor of number of active lanes=inlet well that how logical reducing is).
As another preferred version of the present invention, above-mentioned work plane filling pipe, work plane filling arm are identical with its diameter of high-pressure rubber pipe.
Above-mentioned grouting filling roadway layout is in work plane warp damage, and it is positioned at the central authorities of work plane tendency in tendency.
Above-mentioned work plane filling arm is all installed on by-pass valve control, flow meter and pressure gauge.
Above-mentioned wear-resisting sebific duct is all installed on by-pass valve control, flow meter and pressure gauge.
Above-mentioned work plane filling supervisor, stowboard filling supervisor are all installed on by-pass valve control, flow meter and pressure gauge.
Above-mentioned work plane filling arm is close to floor undulation and is arranged.
Above-mentioned work plane filling supervisor, work plane filling pipe, work plane filling arm and stowboard filling supervisor are wear-resistant steel pipe.
The Advantageous Effects that the present invention brings:
The present invention proposes a kind of breaking roof Collapsed zone grouting filling system, compared with prior art, the mode that this system is combined by grouting and stowboard slip casting, can realize to thin, in thick and high seam breaking roof Collapsed zone grouting filling;
This system works face slip casting and stowboard slip casting substantially without impact, adopt that to fill contradiction little on working surface production, substantially increase filling operation face output;
First this system carries out grouting filling by grouting filling system to Collapsed zone, by top stowboard grouting filling system, space is not filled to top again and carry out secondary grouting filling, pack completeness is high, and it is effective that control movement slows down subsidence;
By this system, the slurries with certain cementing properties are injected goaf, make the entirety that erecting dense individual props rock formation is new, improve the load-carrying properties of erecting dense individual props rock, improve the stress of working face wall and coal column.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, explanation clear, complete is further done to the present invention:
Fig. 1 is the plan view of breaking roof Collapsed zone grouting filling system of the present invention;
Fig. 2 is the sectional drawing (along work plane tendency) of breaking roof Collapsed zone grouting filling system of the present invention;
Fig. 3 is the sectional drawing (along work plane trend) of breaking roof Collapsed zone grouting filling system of the present invention;
In figure, the filling of 1-work plane is responsible for, 2-work plane filling pipe, and 3-reducing two leads to, 4-high-pressure rubber pipe, 5-work plane filling arm, 6-grouting filling tunnel, and the filling of 7-stowboard is responsible for, and 8-reducing leads to more, 9-inlet well; A-warp damage; B-fissure zone; C-caving zone.
Detailed description of the invention
The invention discloses a kind of breaking roof Collapsed zone grouting filling system, in order to make advantage of the present invention, technical scheme clearly, clearly, below in conjunction with detailed description of the invention, explanation clear, complete further being done to the present invention.
Warp damage a refers to the part rock stratum of leaking crevice belt top circle to earth's surface;
Fissure zone b refers to and is positioned on caving zone, has the water producing fractures be communicated with goaf, but continuity that a part of rock stratum unspoilt;
Caving zone c refers to and departs from rock stratum parent, loses continuity, in irregular rock or like the part rock stratum of stratiform sillar to erecting dense individual props.
Shown in composition graphs 1 to Fig. 3, the present invention, a kind of breaking roof Collapsed zone grouting filling system, comprise the work plane filling supervisor 1 be arranged in return airway, high-pressure rubber pipe 4, work plane filling pipe 2 and several work plane filling arms 5, work plane filling supervisor 1 is provided with reducing two logical 3, high-pressure rubber pipe 4 is connected on work plane filling supervisor 1 by reducing two logical 3, the other end of high-pressure rubber pipe connects work plane filling pipe 2, several work plane filling arms 5 are connected side by side along work plane filling pipe 2, and work plane filling arm 5 is fixedly connected on the working surface hydraulic support between goaf and coal seam, mobile with the movement of hydraulic support, the filling mouth of work plane filling arm 5 extend into goaf, and arrange along seat earth, the present invention is preferably installed on by-pass valve control on work plane filling arm 5, flow meter and pressure gauge, convenient detection charging quantity and stowing pressure,
This filling system also comprises grouting filling tunnel 6 and is arranged in the stowboard filling supervisor 7 in grouting filling tunnel, reducing many logical 8, sleeve pipe, wear-resisting sebific duct and inlet well 9, grouting filling tunnel 6 is arranged in above work plane, and it is axially parallel to advance of the face direction, stowboard filling supervisor 7 installs reducing many logical 8, and many logical more than the number of inlet well 91 of 8 its number of active lanes of reducing, wear-resisting sebific duct is connected on reducing many logical 8 by connector, inlet well 9 is at a certain angle in fan-shaped distribution, and its degree of depth should reach caving zone, sleeve pipe by cement paste and inlet well cemented together, and sleeve pipe is connected with wear-resisting sebific duct by connector.
For detecting charging quantity and stowing pressure, flow, pressure sensor can be all installed on every root work plane filling supervisor, stowboard filling supervisor, pass through control system, as the device real-time monitoring such as computer, PLC filling situation, valve can also being set on every root work plane filling supervisor, stowboard filling supervisor simultaneously, when needing the filling stopping somewhere, closing the valve on the filling pipe of relevant position, when needs stop whole filling, then close the valve on filling supervisor.
Above-mentioned wear-resisting sebific duct is all installed on by-pass valve control, flow meter and pressure gauge.
Above-mentioned work plane filling arm is close to floor undulation and is arranged.
Above-mentioned work plane filling supervisor, work plane filling pipe, work plane filling arm and stowboard filling supervisor are wear-resistant steel pipe.
Operating principle of the present invention:
When carrying out work plane filling, first by grouting filling system, grouting filling is carried out to Collapsed zone, its order be open successively work plane filling supervisor valve and relevant work face filling pipe on valve and work plane filling arm on valve, filling is carried out successively to the side that seat earth absolute altitude is high in the side low from seat earth absolute altitude, close respective valves when this place's charging quantity reaches and estimates charging quantity and open other valves corresponding and carry out filling, be responsible for by grouting filling tunnel and the stowboard filling be arranged in stowboard again after full face filling is complete, reducing leads to more, sleeve pipe, the acting in conjunction of wear-resisting sebific duct and inlet well, region is not filled to top and carries out secondary filling, after this process completes, this stage filling operation terminates, advancing working face hydraulic support, hydraulic support drags work plane filling pipe and work plane filling arm is pushed ahead together, carries out next stage filling operation after precalculated position to be advanced to.
Claims (6)
1. a breaking roof Collapsed zone grouting filling system, comprise high-pressure rubber pipe, work plane filling pipe and the work plane filling supervisor be arranged in return airway, described work plane filling supervisor is provided with reducing two lead to, described high-pressure rubber pipe is led to by described reducing two to be received on described work plane filling supervisor, the other end of described high-pressure rubber pipe connects described work plane filling pipe, it is characterized in that: along described work plane filling pipe being connected with side by side several work plane filling arms, and described work plane filling arm is fixedly connected on the working surface hydraulic support between goaf and coal seam, mobile with the movement of hydraulic support, the filling mouth of described work plane filling arm stretches into goaf, and arrange along seat earth,
Described filling system also comprises grouting filling tunnel and is arranged in the stowboard filling supervisor in stowboard, reducing leads to more, sleeve pipe, wear-resisting sebific duct and inlet well, described grouting filling roadway layout is above work plane, and it is axially parallel to advance of the face direction, the described reducing of the upper installation of described stowboard filling supervisor leads to more, described wear-resisting sebific duct by connector be connected to described reducing many logical on, described inlet well is at a certain angle in fan-shaped distribution, and the described inlet well degree of depth reaches caving zone, described sleeve pipe by cement paste and inlet well cemented together, and described sleeve pipe is connected with described wear-resisting sebific duct by connector, more than the number of inlet well one of the number of active lanes that how logical described reducing is, described work plane filling pipe, work plane filling arm are identical with its diameter of high-pressure rubber pipe, described grouting filling roadway layout is in work plane warp damage, and its section is positioned at the central authorities of work plane tendency in work plane tendency.
2. a kind of breaking roof Collapsed zone grouting filling system according to claim 1, is characterized in that: described work plane filling arm is all installed on by-pass valve control, flow meter and pressure gauge.
3. a kind of breaking roof Collapsed zone grouting filling system according to claim 2, is characterized in that: described wear-resisting sebific duct is all installed on by-pass valve control, flow meter and pressure gauge.
4. a kind of breaking roof Collapsed zone grouting filling system according to claim 3, is characterized in that: described work plane filling supervisor, stowboard filling supervisor are all installed on by-pass valve control, flow meter and pressure gauge.
5. a kind of breaking roof Collapsed zone grouting filling system according to claim 4, is characterized in that: described work plane filling arm is close to floor undulation and is arranged.
6. a kind of breaking roof Collapsed zone grouting filling system according to claim 5, is characterized in that: described work plane filling supervisor, work plane filling pipe, work plane filling arm and stowboard filling supervisor are wear-resistant steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036535.4A CN103758569B (en) | 2014-01-26 | 2014-01-26 | A kind of breaking roof Collapsed zone grouting filling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410036535.4A CN103758569B (en) | 2014-01-26 | 2014-01-26 | A kind of breaking roof Collapsed zone grouting filling system |
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| Publication Number | Publication Date |
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| CN103758569A CN103758569A (en) | 2014-04-30 |
| CN103758569B true CN103758569B (en) | 2016-01-06 |
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| CN108625862A (en) * | 2018-04-11 | 2018-10-09 | 贵州开磷建设集团有限公司 | A kind of sinking and drifting method on loose crushing rock mass |
| CN109594527A (en) * | 2018-12-06 | 2019-04-09 | 安徽理工大学 | A kind of artificial dam body of the groundwater reservoir with zigzag card slot |
| CN111335944B (en) * | 2020-03-30 | 2021-06-15 | 中煤能源研究院有限责任公司 | Coal face gangue slurry pipeline collaborative filling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1385089A (en) * | 1972-06-27 | 1975-02-26 | Coal Industry Patents Ltd | Packing debris in mines |
| CN102155260B (en) * | 2011-05-23 | 2012-11-28 | 中国矿业大学 | Method for filling heavy-pitch coal bed goaf |
| CN102996131B (en) * | 2012-12-10 | 2014-10-29 | 中国矿业大学 | Solid-filling coal mining method with two pre-excavating tunnels for advancing |
| CN203702244U (en) * | 2014-01-26 | 2014-07-09 | 山东科技大学 | Breaking roof caving area grouting filling system |
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Granted publication date: 20160106 Termination date: 20170126 |