CN207813564U - A kind of cyclic permutation grouting device of drilling pipe-fixing - Google Patents
A kind of cyclic permutation grouting device of drilling pipe-fixing Download PDFInfo
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- CN207813564U CN207813564U CN201820188517.1U CN201820188517U CN207813564U CN 207813564 U CN207813564 U CN 207813564U CN 201820188517 U CN201820188517 U CN 201820188517U CN 207813564 U CN207813564 U CN 207813564U
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Abstract
The utility model discloses a kind of cyclic permutation grouting device of drilling pipe-fixing, including drilling machine, grouting pump, agitator, midge pipeline, grouting pipe, overfall pipeline, hole packers；The drilling machine pipeline connects grouting pump, and grouting pump one end connects agitator by midge pipeline, and the other end is connected the entrance of hole packer by grouting pipe, and the outlet of hole packer connects agitator by overfall pipeline.The beneficial effects of the utility model：Using cycle slip casting, while be injected back into slurry pipeline exchange slip casting it is primary, so that slurries in hole is uniformly distributed, pass through thick slurry cyclic permutation thin pulp technique again, slurries in hole are made to be avoided the influence of cement consolidation after-contraction by normally matching grout replacement as thick slurry, be avoided the occurrence of " clear area ".
Description
Technical field
The utility model is related to a kind of a kind of cyclic permutation slip casting of grouting device more particularly to drilling pipe-fixing dresses
It sets.
Background technology
Coal mine gas and water hazard prediction, be commonly used down-hole drilling mode, as gas drainage borehole, unrestrained water drilling hole,
Grouting and reinforcing water proof drilling etc..《Mine geological hazards provide》(the 28th command of general bureau) the 96th article of regulation：It is big in estimated hydraulic pressure
When water is visited in the place of 0.1MPa, casing is consolidated in advance.When hydraulic pressure is more than 1.5MPa in drilling, using back-pressure and there is blowout hookup
Method drilling, and formulate prevent the measure that orifice tube and coal (rock) wall bloat suddenly.
Underground leting speeper drilling construction and device for preventing blowout of drill holes use are required to consolidate casing in advance in hole, are bored with increasing
The stability in hole, while gate valve is connected on casing, when occurring abnormal conditions in hole, flow is controlled by gate valve, if set
Pipe consolidates loosely, can form many security risks, first, drilling is closed bad, the drilling leak that discharges water, extraction borehole gas leakage occurs；
Second is that the high pressure water or under the action of high pressure gas in hole, in fact it could happen that the security risk that hole inner sleeve is scurried out；Third, going out in hole
Existing abnormal conditions, when hydraulic pressure increases suddenly, the gate valve for the drilling that discharges water can not play the role of controlling hydraulic pressure reduction flow, or even go out
It now drills out the uncontrollable situation of water, when gas effusion intensity, can not stubble extraction be closed to drilling in time, local watt may be caused
The case where this transfinites.Therefore, how fixed drilling inner sleeve, become water damage and gas control drilling committed step.
Casing in fixed drilling is mainly realized by the method for the slip casting between casing and the wall of a borehole at present, by casing
Fixed complexity is distinguished, and the lower casing to drilling is relatively fixed easily, the more difficult fixation of casing of rising borehole, the set of straight angle drilling
Pipe is most difficult to fix.
Drilling inner sleeve fixed effect is mainly influenced by following factor,
(1) casing needs to be placed centrally in hole, if casing wall is contacted with hole wall, can not there is cement between the two
Slurry enters, and tube wall can not be consolidated with hole wall；
(2) if slurries are unevenly distributed in hole, it may appear that the anhydrous mud in hole inside points region, Gu pipe effect is poor；
(3) by borehole circumference Effect of Fissure, if cement grout can not block crack, even if fixing casing, still
It is bad to will appear borehole sealing, controls water and gas pumping is ineffective；
(4) cement grout is after consolidation, it may appear that different degrees of volume contraction, even if cement mortar has been noted in fact in hole, but
It is that still will appear white space in consolidation metapore, drills especially for the straight angle, easily form the hole of crescent shape above hole wall.
To sum up, solid pipe in the prior art usually will appear " blind area ", and at present underground consolidate the grouting process that pipe uses for
An one stifled note one returns, and blocks aperture, once grouting, an overfall, it is desirable to which the appearance for solving " blind area " needs multiple cleaning bottom of hole, more
Secondary slip casting, until qualified, but the materials such as not only waste of time in this way, but also waste cement.
Utility model content
Solid pipe appearance in above-mentioned background technology is solved the technical problem to be solved by the utility model is to provide a kind of
The cyclic permutation grouting device of the drilling pipe-fixing of " blind area ".
The utility model is to solve above-mentioned technical problem by the following technical programs：A kind of drilling pipe-fixing of the utility model
Cyclic permutation grouting device, including drilling machine, grouting pump, agitator, midge pipeline, grouting pipe, overfall pipeline, sealing of hole
Device；The drilling machine pipeline connects grouting pump, and grouting pump one end connects agitator by midge pipeline, and the other end is connected by grouting pipe
The entrance of hole packer is connect, the outlet of hole packer connects agitator by overfall pipeline.
Preferably, the drilling machine is fluid pressure type drilling machine.
Preferably, the grouting pump is hydraulic grouting pump.
Preferably, the agitator is pneumatic stirring bucket, connects down-hole pressure wind regime.
Preferably, the hole packer is bag type paste hole packer.
Preferably, the grouting pump is equipped with the pressure gauge for observing grouting pressure in real time.
The utility model has the following advantages compared with prior art：
(1) using cycle slip casting, while be injected back into slurry pipeline exchange slip casting it is primary, so that slurries in hole is uniformly distributed, then pass through
Thick slurry cyclic permutation thin pulp technique makes slurries in hole avoid cement consolidation after-contraction by normally matching grout replacement as thick slurry
It influences, avoids the occurrence of " clear area "；
(2) using normal proportioning slurries, its mobility band pressure grouting is made full use of, borehole circumference crack, hydraulic pressure are blocked
The pressure of pump is larger, can block the pore water water producing fractures of underground simultaneously；
(3) casing wall surface welded nut gasket had not only ensured reducing friction resistance when setting of casing, but also can erect casing, kept away
Exempt from casing wall to come into contact in a large area with hole wall, while in nut shim insertion cement mortar, reducing the risk that casing falls off；
(4) the utility model adapts to " under to drilling, rising borehole, straight angle drilling ", adaptable.
Description of the drawings
Fig. 1 is a kind of cyclic permutation grouting process of drilling pipe-fixing of the utility model and the structural schematic diagram of device；
Fig. 2 is the enlarged drawing at A in Fig. 1.
Figure label：Drilling machine 1, oil inlet pipe 11, oil return pipe 12, pressure regulator valve 13, grouting pump 2, pressure gauge 21, agitator 3,
Stirring blade 31, midge head 32, midge pipeline 4, grouting pipe 5, overfall pipeline 6, gate valve 61, hole packer 7, casing 8, nut pad
Piece 81.
Specific implementation mode
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model
It puts and is implemented, give detailed embodiment and specific operating process, but the scope of protection of the utility model is unlimited
In following embodiments.
As shown in Figure 1, a kind of cyclic permutation grouting device of drilling pipe-fixing of the present embodiment, including drilling machine 1, grouting pump 2,
Agitator 3, midge pipeline 4, grouting pipe 5, overfall pipeline 6, hole packer 7；1 pipeline of the drilling machine connects grouting pump 2, slip casting
It pumps 2 one end and agitator 3 is connected by midge pipeline 4, the other end is connected the entrance of hole packer 7 by grouting pipe 5, and hole packer 7 goes out
Mouth passes through overfall pipeline 6 and connects agitator 3.
The drilling machine 1 is fluid pressure type drilling machine, and there are three aspects to act on for fluid pressure type drilling machine herein, first, construction is bored
Hole；Second is that after in 8 tripping in hole of casing, casing 8 is resisted using fore-clamp holder, prevents from altering under casing 8；Third, the hydraulic pressure of drilling machine 1
System provides power for hydraulic grouting pump.
The grouting pump 2 is hydraulic grouting pump, and hydraulic grouting pump drives cylinder using the hydraulic system of hydraulic boring unit as power
Body moves reciprocatingly, and realizes midge, slip casting function, and the oil pressure of 1 hydraulic system of drilling machine, realization pair are adjusted by pressure regulator valve 13
The control of hydraulic pump works pressure.
The agitator 3 is pneumatic stirring bucket, connects down-hole pressure wind regime, and driving stirring blade 31 is rotated, realized to water
The uninterrupted stirring of slurry liquid.
The hole packer 7 is bag type paste hole packer, herein using the bag type paste hole packer to match with 8 size of casing, set
On the casing 8 in aperture, the inside of bag type paste hole packer is a check valve, and when slip casting, slurries make the capsule of bag type paste hole packer
Bag expansion, pouch filter out moisture, gradual expandable pressurized, and pressure reaches 2MPa or more, quick-fried in the Grouting Pipe of bag type paste hole packer
Broken valve is opened, and realizes slip casting in the drilling above pouch.
The grouting pump 2 is equipped with the pressure gauge 21 for observing grouting pressure in real time.
The present apparatus before use, connect grouting pump 2 and agitator 3 first；By in 8 tripping in hole of casing after drilling construction, liquid
Pressure drilling machine is connected by oil inlet pipe 11 and oil return pipe 12 with hydraulic grouting pump, and checks pressure regulator valve 13, is hydraulic grouting pump
Power is provided；Pneumatic stirring bucket connects air line, opens pressure wind, stirring blade 31 is enable to work normally.
Secondly, grouting pipeline is connected；Midge head 32 is put into pneumatic stirring bucket, and midge head 32 is with poroid cylinder
Body ensures that uneven solid cannot be introduced into pipeline in slurries, and slurries enter midge pipeline 4 to hydraulic grouting pump through midge head 32
After pressurized, the Grouting Pipe of bag type paste hole packer is entered by the grout outlet of grouting pump through grouting pipe 5 for pulp absorbing hole.
Finally, overfall pipeline is connected；The return pipe of bag type paste hole packer extend into the top of drilling, and when slip casting can lead to
Cross the exhaust of this return pipe.
Work to be prepared is completed, and realizes following technological process.
It realizes that the utility model concrete technology is divided into drilling, recycles slip casting, thick slurry cyclic permutation thin pulp specifically includes following
Step：
(1) drilling and setting of casing are drilled using drilling machine 1 to predetermined depth, and by 8 tripping in of casing with hole packer 7
In hole, and casing 8 is resisted using the fore-clamp holder of drilling machine 1；
(2) clear water hole flushing, is put into clear water in agitator 3, opens grouting pump 2, clear water by midge pipeline 4, grouting pump 2,
The Grouting Pipe connection of grouting pipe 5, hole packer 7 is back to the overfall pipeline formed by overfall pipeline 6 to form grouting pipeline,
Finally it is recycled to agitator 3；This step can check whether the slip casting circulatory system is normal；
(3) slip casting and sealing of hole with pressure are recycled, the cement grout that configuration normally matches in agitator 3 is sucked by grouting pump 2
Through midge pipeline 4, the slip casting into hole of grouting pipe 5, when slurries are flowed out from overfall pipeline, at this time by grouting pipe, return pipe
Road is exchanged, from 6 slip casting of overfall pipeline, after, overfall pipeline 6 is closed, slip casting is continued, so that slurries in hole is pressurized, realizes with pressure
Sealing of hole；
(4) thick slurry cyclic permutation thin pulp configures thick slurry in agitator, is injected by grouting pipe 5, and in midge pipeline 4, note
It is recycled in slurry pipeline 5, hole, in overfall pipeline 6, agitator 3, until thin pulp is replaced completely.
The step (1) is before 8 lower opening of casing, the welded nut gasket 81 on 8 outer wall of casing, when both having ensured setting of casing 8
Reducing friction resistance, and casing 8 can be erected, avoid casing wall from being come into contact in a large area with hole wall, while nut shim 81 is embedded in water
In mud, reduce the risk that casing 8 falls off.
The step (2), the grouting pipe 5 in (3) and overfall pipeline 6 are equipped with gate valve 61, when gate valve 61 is opened, realize
Serum recycle flows, and the gate valve 61 of overfall pipeline is closed, and realizes band pressure grouting, so that slurries infiltration palisades crack is reached sealing of hole tight
It is close.
In the step (4) when configuration thick slurry, swelling agent is added, further avoids the influence of cement consolidation after-contraction.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (6)
1. a kind of cyclic permutation grouting device of drilling pipe-fixing, it is characterised in that：Including drilling machine, grouting pump, agitator, midge
Pipeline, grouting pipe, overfall pipeline, hole packer；The drilling machine pipeline connects grouting pump, and grouting pump one end is connected by midge pipeline
Agitator is connect, the other end is connected the entrance of hole packer by grouting pipe, and the outlet of hole packer connects agitator by overfall pipeline.
2. a kind of cyclic permutation grouting device of drilling pipe-fixing according to claim 1, which is characterized in that the drilling machine
For fluid pressure type drilling machine.
3. a kind of cyclic permutation grouting device of drilling pipe-fixing according to claim 1, which is characterized in that the grouting pump
For hydraulic grouting pump.
4. a kind of cyclic permutation grouting device of drilling pipe-fixing according to claim 1, which is characterized in that the agitator
For pneumatic stirring bucket, down-hole pressure wind regime is connected.
5. a kind of cyclic permutation grouting device of drilling pipe-fixing according to claim 1, which is characterized in that the hole packer
For bag type paste hole packer.
6. a kind of cyclic permutation grouting device of drilling pipe-fixing according to claim 1, which is characterized in that the grouting pump
It is equipped with the pressure gauge for observing grouting pressure in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820188517.1U CN207813564U (en) | 2018-02-02 | 2018-02-02 | A kind of cyclic permutation grouting device of drilling pipe-fixing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820188517.1U CN207813564U (en) | 2018-02-02 | 2018-02-02 | A kind of cyclic permutation grouting device of drilling pipe-fixing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194047A (en) * | 2018-02-02 | 2018-06-22 | 淮南矿业(集团)有限责任公司 | The cyclic permutation grouting device and technique of a kind of drilling pipe-fixing |
| CN111927388A (en) * | 2020-08-17 | 2020-11-13 | 河南理工大学 | A slip casting shutoff crack device for overlying strata abscission layer |
-
2018
- 2018-02-02 CN CN201820188517.1U patent/CN207813564U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194047A (en) * | 2018-02-02 | 2018-06-22 | 淮南矿业(集团)有限责任公司 | The cyclic permutation grouting device and technique of a kind of drilling pipe-fixing |
| CN111927388A (en) * | 2020-08-17 | 2020-11-13 | 河南理工大学 | A slip casting shutoff crack device for overlying strata abscission layer |
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