CN203488190U - Mining grouting conduit - Google Patents
Mining grouting conduit Download PDFInfo
- Publication number
- CN203488190U CN203488190U CN201320617454.4U CN201320617454U CN203488190U CN 203488190 U CN203488190 U CN 203488190U CN 201320617454 U CN201320617454 U CN 201320617454U CN 203488190 U CN203488190 U CN 203488190U
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- conduit
- connector
- mining
- mining grouting
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Abstract
The utility model provides a mining grouting conduit which has a grouting function and is capable of improving shearing strength of rocks around a conduit body, reinforcing the surrounding rocks and diffusing pressure of the surrounding rocks. The mining grouting conduit comprises the conduit body and a connector, wherein the connector is arranged on the conduit body. The mining grouting conduit is characterized in that grout vent holes are formed in the conduit body. The conduit body is provided with threads. A one-way locking device is arranged inside the conduit body. A tapered sleeve is fixed to the left side of the threads. The external diameter of the right side of the tapered sleeve is smaller that that of the left side of the tapered sleeve. The internal diameter of a sealing sleeve is larger than the external diameter of the right end of the tapered sleeve. The sealing sleeve is closely attached to the right side of the tapered sleeve and is installed on the threads. A gasket, a fastening nut and the connector are installed on the threads sequentially from left to right. The mining grouting conduit has the advantages that cement paste is injected into a tunnel roof and sidewall crack passages through the mining grouting conduit to fill cracks so as to block off water surge and cement the rocks.
Description
Technical field
The utility model relates to a kind of coal mine roadway and safeguards the instrument using, and relates in particular to the grouting pipe of a kind of colliery special use.
Background technology
Coal mine down-hole tunnel exists the fractured rock and the structural fracture that in back, lateral wall, exist and grows broken scar and the crack that is difficult to supporting.Roadway maintenance did not have the interior fractured rock existing of top board, lateral wall and structural fracture that good method solves to grow broken scar and the crack problem that is difficult to supporting in the past.Only take the outside anchor cable of beating to fix the method combining with whitewashing, broken scar and crack that the fractured rock after still this method processing in back, lateral wall and structural fracture growth are difficult to supporting still exist.Prolongation pressure increase along with the time, easily causes roadway deformation seriously to there will be collapse accident.
In order to solve the fractured rock and the structural fracture that exist in back, lateral wall, grow broken scar and the crack problem that is difficult to supporting, at back, lateral wall, stamp boring, conduit is installed in boring and then utilizes the shutoff of shutoff cover to hole.Finally utilize Pneumatic grouting pump that cement paste is injected, cement paste overflows from the slurry hole of overflowing, under the persistent pressure of Pneumatic grouting pump, grout filling is grown and is difficult in the broken scar and crack of supporting to the fractured rock existing in back, lateral wall and structural fracture, centered by boring in the scope of diameter 2m, play shutoff water burst, cemented rock, improves coffer mechanics performance, improve rock mass self bulk strength, change the effect of surrounding rock supporting state.Reduce the incidence of roadway deformation amount and collapse accident.
Summary of the invention
The purpose of this utility model is reinforce adjoining rock, improves rock mass self bulk strength, changes the effect of surrounding rock supporting state.Reduce the incidence of roadway deformation amount and collapse accident.Exactly back, the inner fractured rock existing of lateral wall and structural fracture are grown to the broken scar that is difficult to supporting, in its crack passage, inject grout filling crack, shutoff water burst, cemented rock, improve coffer mechanics performance, improve rock mass self bulk strength, change surrounding rock supporting state.Main Function is the shear strength that improves body surrounding rock body, reaches reinforce adjoining rock and spreads pressure from surrounding rock effect.For achieving the above object, the technical solution adopted in the utility model is:
A kind of mining grouting pipe, comprise body and connector, connector is contained in above body, it is characterized in that: above body, be distributed with the slurry hole of overflowing, be designed with screw thread on body, single oriented locking device is equipped with in the inside of body, the left side of screw thread is fixed with coning sleeve, and the right side external diameter of coning sleeve is less than left side external diameter, and sealing shroud internal diameter is greater than coning sleeve right-hand member external diameter, the right side that sealing shroud is close to coning sleeve is arranged on screw thread, and pad, clamp nut, connector are from left to right also installed on screw thread successively.
Wherein, the external diameter of described body is 25mm, has 5 slurry holes of overflowing above body.
Wherein, described single oriented locking device comprises steady pin, pad, spring, taper head, outer wall and fixed head, fixed head left end is installed steady pin, pad and spring successively, and taper head is by spring compression on pad, and the right-hand member of fixed head is fixed on the right-hand member of outer wall.
Wherein, the outer wall of described single oriented locking device is fixed on body by thread tapping.
The utility model has the advantages that: by mining grouting pipe, in back, lateral wall crack passage, inject grout filling crack, shutoff water burst, cemented rock.Coming into operation of mining grouting pipe, has improved body coffer mechanics performance around, improves rock mass strength, changes surrounding rock supporting state.Make tunnel vault form a umbrella protection ring, avoid the generation of some roadway deformations that cause because of the diffusion in crack, collapse accident.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is pipe structure schematic diagram of the present utility model.
Fig. 3 is STRUCTURE DECOMPOSITION schematic diagram of the present utility model (removing body).
Fig. 4 is the front view of individual event blocking device.
Fig. 5 is the right view of individual event blocking device.
In accompanying drawing: 1, body; 2, overflow and starch hole; 3, single oriented locking device; 4, coning sleeve; 5, sealing shroud; 6, pad; 7, clamp nut; 8, connector; 9, steady pin; 10, pad; 11, spring; 12, taper head; 13, outer wall; 14, fixed head.
The specific embodiment
Below in conjunction with accompanying drawing to further illustrating.
The utlity model has following technical characterictic: adopt the welded tube of a φ 25 as the body 1 of conduit, on body 1, be uniformly distributed 5 slurry holes 2 of overflowing, in body terminus inner, single oriented locking device 3 is installed, apart from body end 140mm place, arranging a coning sleeve 4, as the expander use of sealing shroud 5.Body end is provided with 100mm silk, is equipped with corresponding nut, plain cushion, shutoff cover, and shutoff boring is used.
The utility model makes tunnel vault form a umbrella protection ring by mining grouting pipe to injected water mud in back, lateral wall crack passage, avoids the generation of some roadway deformations that cause because of the diffusion in crack, collapse accident.
Fig. 1 is assembling schematic diagram of the present utility model.Fig. 2 is the body 1 of slip casting guide rod, and its effect is water conservancy diversion cement paste, and the effect of Fig. 1 sealing shroud 5 is in body 1 outer end sealing, prevents that cement paste is excessive from holing.Fig. 4 is individual event blocking device, and its effect is in the body 1 of slip casting guide rod, to prevent that the cement paste injecting is inner excessive from body 1, and the effect of coning sleeve 5 is sealing shroud 5 spreadings to be made sealing shroud 5 and boring keep airtight when clamp nut 7 is installed.The effect of connector 8 is that body 1 is connected with Pneumatic grouting pump.
Each component function of individual event blocking device 3 is respectively: taper head 12 plays plugging action; Outer wall 13 plays the effect that is fixed on body 1 inwall; Fixed head 14 plays fixing spring 11 effects; Pad 10 plays stable and fixing spring 11 effects; Steady pin 9 plays and fixedly prevents that spring 11 from departing from fixed head 14 effects; Spring 11 resets for taper head 12.
Operating principle of the present utility model is as follows.
1, by the pressure of grouting pump, the taper head of individual event blocking device 3 12 is opened, cement paste, from injected water mud between taper head 12 and the gap of outer wall 13, stops grouting pump after cement paste has injected.Under decompression state, the taper head 12 of individual event blocking device 3, by outer wall sealing under spring force and cement paste active force, does not leak cement paste from body inside.
2, after inserting boring, grouting pipe by clamp nut 7, sealing shroud 5 is progressively pushed to coning sleeve 4 directions, make progressively distending of sealing shroud 5, sealing shroud 5 outer walls and boring are combined closely, play sealing drilling action, the cement paste injecting is not leaked between boring and grouting pipe.
3, under this two seals effect, the cement paste injecting grows to fractured rock and structural fracture broken scar and the crack that is difficult to supporting at the effect retrofilling of grouting pump, play shutoff water burst, cemented rock, improve coffer mechanics performance, improve rock mass self bulk strength, change the effect of surrounding rock supporting state.
Introduce grouting pipe processing method below.First, on lathe, body 1 is carried out to screw thread processing and coning sleeve 4, taper head 12 processing; Then, on drilling machine, complete the excessive slurry hole 2 of body 1 and the processing of individual event blocking device 3 fixing holes; The body processing 1 and coning sleeve 4 are welded; After body is cooling, assemble (sealing shroud 5, clamp nut 7 are outsourcing piece).
Below for the fixing means of individual event blocking device.Taper head 12, outer wall 13, steady pin 9, special tool that the spring 11 first outsourcing being come, pad 10, fixed head 14, thread tapping and early stage process are ready to, then carry out the assembling of individual event blocking device 3,1 li of the body that the individual event blocking device assembling 3 use special tools is packed into grouting pipe is fixed with thread tapping again, grouting pipe is lost efficacy in preventing, when Pneumatic grouting pump slip casting, individual event blocking device is squeezed into boring.
This product is that a kind of coal mine roadway safeguards that the instrument that uses is for disposable utensil reusable not, specially for light, easy to operate, practical.
This product is used in conjunction with 2ZBQ---30/3 type Pneumatic grouting pump, by Pneumatic grouting pump, cement paste is injected in conduit and rock stratum, before work, Pneumatic grouting pump cement is got ready standby.Method of operating is as follows:
1, in moulding tunnel, down-hole, exist the fractured rock and the structural fracture that in back, lateral wall, exist and grow broken scar and the place, crack that is difficult to supporting, in existing anchor pole gap, intert, squeeze into the boring adapting with grouting pipe;
2, grouting pipe is inserted to boring successively, the outside clamp nut 7 of conduit is fastening, sealing shroud 5 and boring are combined closely and prevented that the cement paste injecting is excessive;
3, connector 8 and Pneumatic grouting pump (2ZBQ---30/3) discharging opening conduit are connected;
4, connector 8 and grouting pipe are connected;
5, opening Pneumatic grouting pump mixes cement and water in rear injection grouting pipe and rock stratum in proportion
6, after injected water mud, stop grouting pump, connector and grouting pipe are departed from, and then be connected with next root grouting pipe, start grouting pump and carry out second slip casting.According to above-mentioned steps the like complete slip casting work.
After injecting, cement paste overflows from the slurry hole 2 of overflowing, under the persistent pressure of Pneumatic grouting pump, grout filling is grown and is difficult in the broken scar and crack of supporting to the fractured rock existing in back, lateral wall and structural fracture, centered by boring, in the scope of diameter 2m, play shutoff water burst, cemented rock, improve coffer mechanics performance, improve rock mass self bulk strength, change the effect of surrounding rock supporting state, reduce the incidence of roadway deformation amount and collapse accident.
Claims (4)
1. a mining grouting pipe, comprise body (1) and connector (8), connector (8) is contained in body (1) above, it is characterized in that: above body (1), be distributed with the slurry hole (2) of overflowing, on body (1), be designed with screw thread (9), single oriented locking device (3) is equipped with in the inside of body (1), the left side of screw thread (9) is fixed with coning sleeve (4), the right side external diameter of coning sleeve (4) is less than left side external diameter, sealing shroud (5) internal diameter is greater than coning sleeve (4) right-hand member external diameter, the right side that sealing shroud (5) is close to coning sleeve (4) is arranged on screw thread (9), pad (6) is from left to right also installed on screw thread (9) successively, clamp nut (7), connector (8).
2. mining grouting pipe according to claim 1, is characterized in that: the external diameter of described body (1) is 25mm, has 5 slurry holes (2) of overflowing above body.
3. mining grouting pipe according to claim 1, it is characterized in that: described single oriented locking device (3) comprises steady pin (9), pad (10), spring (11), taper head (12), outer wall (13) and fixed head (14), fixed head (14) left end is installed steady pin (9), pad (10) and spring (11) successively, it is upper that taper head (12) is pressed on pad (10) by spring (11), and the right-hand member of fixed head (14) is fixed on the right-hand member of outer wall (13).
4. mining grouting pipe according to claim 1, is characterized in that: the outer wall (13) of described single oriented locking device (3) is fixed on body (1) by thread tapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617454.4U CN203488190U (en) | 2013-10-09 | 2013-10-09 | Mining grouting conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617454.4U CN203488190U (en) | 2013-10-09 | 2013-10-09 | Mining grouting conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488190U true CN203488190U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617454.4U Expired - Fee Related CN203488190U (en) | 2013-10-09 | 2013-10-09 | Mining grouting conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203488190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470271A (en) * | 2013-10-09 | 2013-12-25 | 枣庄矿业(集团)有限责任公司田陈煤矿 | Mining grouting guide pipe |
-
2013
- 2013-10-09 CN CN201320617454.4U patent/CN203488190U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470271A (en) * | 2013-10-09 | 2013-12-25 | 枣庄矿业(集团)有限责任公司田陈煤矿 | Mining grouting guide pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20141009 |
|
| EXPY | Termination of patent right or utility model |