CN109736851A - A kind of grouting device and its application method for the efficient slip casting of mine laneway - Google Patents
A kind of grouting device and its application method for the efficient slip casting of mine laneway Download PDFInfo
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- CN109736851A CN109736851A CN201910167286.5A CN201910167286A CN109736851A CN 109736851 A CN109736851 A CN 109736851A CN 201910167286 A CN201910167286 A CN 201910167286A CN 109736851 A CN109736851 A CN 109736851A
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- CN
- China
- Prior art keywords
- grouting
- main body
- slip casting
- mine laneway
- agitating shaft
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- 238000007569 slipcasting Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000002002 slurry Substances 0.000 claims abstract description 44
- 239000004575 stone Substances 0.000 claims description 11
- 239000000284 extract Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000004568 cement Substances 0.000 claims description 4
- 210000002966 serum Anatomy 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000011268 mixed slurry Substances 0.000 claims description 2
- 238000009955 starching Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000011440 grout Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Abstract
The invention discloses a kind of grouting devices and its application method for the efficient slip casting of mine laneway, including apparatus main body, grouting pump and Grouting Pipe, four corners of described device main body bottom end are mounted on supporting leg, the bottom end of described device main body is equipped with motor by bearing, and the output end of motor extends to apparatus main body and is internally provided with mountain word agitating shaft, the side on described device main body top is provided with grouting pump, and the input terminal of grouting pump extends to inside apparatus main body, the output end of the grouting pump is provided with Grouting Pipe, and injected hole is evenly arranged on Grouting Pipe lateral wall, external screw thread is provided on the lateral wall of the Grouting Pipe input terminal, the output end of the Grouting Pipe is provided with slotted opening, the other side on described device main body top is by being hingedly equipped with dodge gate, and the top of dodge gate is equipped with handle, the dress The side for setting main body is equipped with controller, and work efficiency is high by the present invention, can leak out to avoid slurries, convenient and strength-saving, use easy to spread.
Description
Technical field
The present invention relates to grouting device technical field, specially a kind of grouting device for the efficient slip casting of mine laneway and
Its application method.
Background technique
In mine laneway engineering, the stress variation of rock mass can be caused due to digging tunnel in rock mass, in order to improve lane
The mechanical property of road country rock improves the intensity of rock mass to ensure safety, to complete by drilling in mine laneway and in drilling
Injection slurries carry out consolidating crack in backward hole, in existing grouting device, including grouting pump, hole sealing device, with grouting pump
Export the Grouting Pipe of connection.It, all can be seamed between slip casting tube wall and borehole wall in order to which Grouting Pipe can smoothly be inserted into drilling
Gap, in the construction process, slurries leak outside in order to prevent, generally can all be blocked using hole sealing device to hell, often at present
Hole sealing device is sealing of hole casing, and at hell, hole sealing device is covered in Grouting Pipe, and this device is cumbersome, is taken
When expenses of labour, slurries may solidify, and slurries is caused to be not easy to spray, and reduce working efficiency, and device not easy cleaning.
Summary of the invention
The purpose of the present invention is to provide a kind of grouting devices for the efficient slip casting of mine laneway, to solve above-mentioned background
Itd is proposed in technology using hole sealing device to hell block time-consuming and laborious, slurries easily solidify and device easy cleaning is not asked
Topic.
To achieve the above object, the invention provides the following technical scheme: a kind of slip casting for the efficient slip casting of mine laneway
Device, including apparatus main body, grouting pump and Grouting Pipe, four corners of described device main body bottom end, which pass through, to be installed by welding with
The bottom end of supporting leg, described device main body is equipped with motor by bearing, and the output end of motor extends to inside apparatus main body
It is provided with mountain word agitating shaft, the side on described device main body top is provided with grouting pump, is equipped with and adds above described device main body
Material mouth, the feed opening two sides are equipped with charging baffle by bolt, and the input terminal of grouting pump extends to inside apparatus main body,
The output end of the grouting pump is provided with Grouting Pipe, and injected hole is evenly arranged on Grouting Pipe lateral wall, and the Grouting Pipe is defeated
Enter and be provided with external screw thread on the lateral wall at end, the output end of the Grouting Pipe is provided with slotted opening, described device main body top
The other side by being hingedly equipped with dodge gate, and the top of dodge gate is equipped with handle by bolt, described device main body
Side is equipped with controller by bolt, and the output end of controller and the input terminal of motor and grouting pump are electrically connected by conducting wire
It connects；The tunnel working efficiency in mine can be made to be continuously improved by efficient grouting device, reduced in working face support
Hydraulic stem frequency of use, can vacate more hydraulic stems for new mine exploitation, lane can be added when tunnel is withdrawn
The efficient grouting device in road improves the working efficiency in tunnel, described device by the mutual cooperation of two equipment.
Preferably, the bottom end of the supporting leg passes through bolt and is equipped with universal wheel, and one end of universal wheel is provided with
Brake block；Position can constantly be changed in complex environment using universal wheel, it is easier to carry out slip casting raising in different positions
The efficiency of work run grouting device can more in different directions.
Preferably, the outside of the motor is equipped with shield by bolt, and the two sides of shield are provided with heat dissipation
Fin；It can play the role of protecting motor in tunnel by shield, and shield also has the function of insulation explosion-proof, due to
Many still gases are adulterated in tunnel, prevent occurring accident in tunnel.
Preferably, the centre of the mountain word agitating shaft is provided with helical mixing blade, and the two sides of mountain word agitating shaft are uniformly set
It is equipped with stirrer gear, intermeshing large-scale spiral stirring blade is installed above the stirrer gear；It can by large-scale spiral blade
To be well uniformly mixed blended cement and work stone, but also it can play and divide unmixing slurry with the slurry mixed
Layer processing, can be improved the working efficiency of grouting pump, can make grouting pump non-stop run, in this way to accelerate the work in tunnel
Time.
Preferably, the two sides of the mountain word agitating shaft pass through support rod and are equipped with the first scraper plate, the mountain word agitating shaft
The two sides of bottom end are by being installed by welding with the second scraper plate；Scraper plate is mainly in concrete in use, time length can coagulate
Gu phenomenon.The solidifying body of slip casting body inner surface can be wiped off using scraper plate, the appearance of solidifying body can also be prevented.
Preferably, the input terminal of the Grouting Pipe is leading portion, and the output end of Grouting Pipe is rear end, and leading portion is big compared with rear end,
Leading portion is provided with ring type seal on the lateral wall of rear end one end；The front end of the Grouting Pipe is bigger than rear end, can be fine
The position that slurries are drawn into grouting, accelerate extract efficiency.
Preferably, rubber pad is installed on the inside of the charging baffle, the rubber pad can wrap up charging baffle, the rubber
30-50 millimeters after pad；Buffer function can be played by installing rubber pad additional, the work stone being added can be made to slowly enter slip casting master
Body not will cause the blocking of feed opening, work stone be uniformly added.
Preferably, compressed air hose is installed, the mountain word agitating shaft border setting is free on the inside of the mountain word agitating shaft
Stomata, 5-10 millimeters of the air bore dia；The speed that lower section slurries can be made to pass through large-scale spiral blade by the way that air hose is added
Degree, makes grouting pump extract the concrete mixed faster, improves efficiency.
Preferably, a kind of application method of the grouting device for the efficient slip casting of mine laneway, comprising the following steps:
S1: grouting device starting is controlled by the controller, work stone and cement are added at the feed opening, passes through institute
The large-scale stirring blade intermeshing rotation inside apparatus main body is stated, the mixing work stone slurries are rotated into described device master
Body lower position, the lower section stirrer gear, which constantly rotates, is uniformly mixed slurries；
S2: constantly declining top mixed serum rapidly slurries air blowing by the air hose in the agitating shaft,
Accelerate the speed of the top large-scale spiral blade mixture, while can guarantee to be uniformly mixed again, accelerates the grouting pump
Working efficiency.
S3: controlling the grouting pump by the controller and extract slurries, in extraction process, to prevent mixed serum stifled
The grouting pump is filled in, compressed air hose is added in the grouting pump rear end, grouting pump can be carried out by the compressed air hose
Slurries can be transported to designated position by the Grouting Pipe in this way by processing emergency case in time.
Compared with prior art, the beneficial effects of the present invention are: the grouting device for being used for the efficient slip casting of mine laneway is logical
Setting mountain word agitating shaft is crossed, convenient for being stirred to the slurries inside apparatus main body, grout cures is avoided, is not easy to extract slurries out,
By the way that helical mixing blade is arranged in the intermediate of mountain word agitating shaft, the precipitating of stirring raw material is avoided, mixing effect is more preferable, by setting
The first scraper plate and the second scraper plate are set, avoids slurries from attaching and is not easily cleaned on the inner sidewall of apparatus main body, by by Grouting Pipe
It is arranged to the different round tube of both ends radius, when the slotted opening of Grouting Pipe is inserted into grouting port, the thicker front end cooperation of Grouting Pipe
Ring type seal can block grouting port, prevent slurries from leaking outside, simple and convenient, time saving and energy saving, pass through the input in Grouting Pipe
End setting external screw thread, can replace various sizes of Grouting Pipe, meet different injection requirements, and convenient for cleaning, the present invention is logical
Cross setting universal wheel, device easy to remove.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view of the invention；
Fig. 2 is Grouting Pipe positive structure diagram of the invention；
Fig. 3 is overlooking structure diagram of the invention；
Fig. 4 is system block diagram of the invention；
In figure: 1, apparatus main body, the 2, first scraper plate, the 3, second scraper plate, 4, supporting leg, 5, universal wheel, 6, radiating fin, 7,
Motor, 8, controller, 9, stirrer gear, 10, mountain word agitating shaft, 11, grouting pump, 12, Grouting Pipe, 13, external screw thread, 14, leading portion,
15, ring type seal, 16, rear end, 17, injected hole, 18, slotted opening, 19, dodge gate, 20, handle, 21, feed opening, 22, plus
Expect baffle, 23, large-scale spiral blade, 24, compressed air hose, 25, rubber pad.
Specific embodiment
The attached drawing of content combination below elaborates to a specific embodiment of the invention.
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
A kind of grouting device for the efficient slip casting of mine laneway as shown in Figs 1-4, including apparatus main body 1, grouting pump 11
With Grouting Pipe 12, by being installed by welding with supporting leg 4, the bottom end of supporting leg 4 is logical for four corners of 1 bottom end of apparatus main body
It crosses bolt and universal wheel 5 is installed, and one end of universal wheel 5 is provided with brake block, device easy to remove, the bottom of apparatus main body 1
End is equipped with motor 7 by bearing, and the model of motor 7 can be Y315M-2, and the outside of motor 7 is equipped with shield by bolt,
And the two sides of shield are provided with radiating fin 6, have not only protected motor 7, but also be convenient for the heat dissipation of motor 7, the output end of motor 7
It extends to apparatus main body 1 and is internally provided with mountain word agitating shaft 10, the centre of mountain word agitating shaft 10 is provided with helical mixing blade, keeps away
Exempt from the solid deposits in slurries, the two sides of mountain word agitating shaft 10 are evenly arranged with stirrer gear 9, and mixing effect is more preferable, mountain word
The two sides of agitating shaft 10 pass through support rod and are equipped with the first scraper plate 2, and the two sides of 10 bottom end of mountain word agitating shaft pass through welding peace
Equipped with the second scraper plate 3, avoids slurries from attaching and be not easily cleaned on the side wall of apparatus main body 1, the side setting on 1 top of apparatus main body
There is grouting pump 11, the model of grouting pump 11 can be ZBQ27/1.5, and the input terminal of grouting pump 11 extends to inside apparatus main body 1, infuse
The output end of stock pump 11 is provided with Grouting Pipe 12, and injected hole 17 is evenly arranged on 12 lateral wall of Grouting Pipe, and Grouting Pipe 12 is defeated
Enter to be provided with external screw thread 13 on the lateral wall at end, the output end of Grouting Pipe 12 is provided with slotted opening 18, the input of Grouting Pipe 12
End is leading portion 14, and the output end of Grouting Pipe 12 is rear end 16, and leading portion 14 is big compared with rear end 16, and leading portion 14 is close to 16 one end of rear end
Ring type seal 15 is provided on lateral wall, rear end 16 and ring type seal 15 can block the seam of Grouting Pipe 12 Yu injected hole
Gap avoids slurries from leaking out, and the other side on 1 top of apparatus main body is by being hingedly equipped with dodge gate 19, and the top of dodge gate 19
Handle 20 is installed by bolt, the side of apparatus main body 1 is equipped with controller 8 by bolt, and the model of controller 8 can be
The output end of MAM-330, controller 8 are electrically connected with the input terminal of motor 7 and grouting pump 11 by conducting wire.
Dodge gate 19 is opened by the handle 20, and electricity is opened by controller 8 inside slurries adding apparatus main body 1
The switch of machine 7, motor 7 drive mountain word agitating shaft 10 to rotate, are stirred to slurries, avoid grout cures, mountain word agitating shaft 10
The stirrer gear 9 of two sides enables mixing effect more preferable, the helical mixing blade among mountain word agitating shaft 10, can be to avoid consolidating in slurries
Body species precipitate, while mountain word agitating shaft 10 drives the first scraper plate 2 and the rotation of the second scraper plate 3, and slurries is avoided to attach in device master
On the inner sidewall of body 1, slotted opening 18 is then inserted into grouting port, the switch of grouting pump 11, grouting pump are opened by controller 8
11 extract the slurries in apparatus main body 1 to Grouting Pipe 12, are injected by the injected hole 17 on 12 side wall of Grouting Pipe
In mine laneway mesoporous, since the leading portion 14 in Grouting Pipe 12 is thick compared with rear end 16, when rear end 16 is inserted into inside grouting port, leading portion
Ring type seal 15 on 14 can block the gap of injected hole Yu rear end 16, avoid the leakage of slurries.
Preferably, rubber pad 25 is installed on the inside of the charging baffle 22, the rubber pad can wrap up the charging baffle
22,30-50 millimeters after the rubber pad 25；Buffer function can be played by installing rubber pad additional, the work stone being added can be made slow
Slow-motion enters slip casting main body, not will cause the blocking of feed opening, work stone is uniformly added.
Preferably, compressed air hose 24 is installed on the inside of the mountain word agitating shaft, the mountain word agitating shaft border is provided with
Airport, 5-10 millimeters of the air bore dia；Lower section slurries can be made to pass through large-scale spiral blade by the way that air hose is added
Speed makes grouting pump extract the concrete mixed faster, improves efficiency.
Preferably, a kind of application method of the grouting device for the efficient slip casting of mine laneway, comprising the following steps:
S1: grouting device starting is controlled by the controller 8, work stone and cement are added at the feed opening 21, leads to
The large-scale intermeshing of stirring blade 23 rotation of 1 inside of described device main body is crossed, the mixing work stone slurries are rotated into institute
1 lower position of apparatus main body is stated, slurries are uniformly mixed by the lower section constantly rotation of stirrer gear 9；
S2: top mixing slurry is constantly made to slurries air blowing by the compressed air hose 24 in the mountain word agitating shaft 10
Liquid declines rapidly, accelerates the speed of top 23 mixture of large-scale spiral blade, while can guarantee to be uniformly mixed again, adds
The working efficiency of the fast grouting pump；
S3: the grouting pump 11 is controlled by the controller 8 and extracts slurries, in extraction process, to prevent mixing slurry
Liquid blocks the grouting pump 11, and compressed air hose 24 is added in 11 rear end of grouting pump, can pass through the compressed air hose 24
Grouting pump 11 is carried out to handle emergency case in time, slurries can be transported to by designated position by the Grouting Pipe 11 in this way.
Compared with prior art, the beneficial effects of the present invention are: the grouting device for being used for the efficient slip casting of mine laneway is logical
Setting mountain word agitating shaft is crossed, convenient for being stirred to the slurries inside apparatus main body, grout cures is avoided, is not easy to extract slurries out,
By the way that helical mixing blade is arranged in the intermediate of mountain word agitating shaft, the precipitating of stirring raw material is avoided, mixing effect is more preferable, by setting
The first scraper plate and the second scraper plate are set, avoids slurries from attaching and is not easily cleaned on the inner sidewall of apparatus main body, by by Grouting Pipe
It is arranged to the different round tube of both ends radius, when the slotted opening of Grouting Pipe is inserted into grouting port, the thicker front end cooperation of Grouting Pipe
Ring type seal can block grouting port, prevent slurries from leaking outside, simple and convenient, time saving and energy saving, pass through the input in Grouting Pipe
End setting external screw thread, can replace various sizes of Grouting Pipe, meet different injection requirements, and convenient for cleaning, the present invention is logical
Cross setting universal wheel, device easy to remove.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (9)
1. a kind of grouting device for the efficient slip casting of mine laneway, including apparatus main body, grouting pump and Grouting Pipe, feature exist
In by being installed by welding with supporting leg, the bottom end of described device main body passes through for four corners of described device main body bottom end
Bearing is equipped with motor, and the output end of motor extends to apparatus main body and is internally provided with mountain word agitating shaft, described device main body
The side on top is provided with grouting pump, and feed opening is equipped with above described device main body, and the feed opening two sides are pacified by bolt
Equipped with charging baffle, the input terminal of the grouting pump is extended to inside apparatus main body, and the output end of the grouting pump is provided with note
Slurry is managed, and is evenly arranged with injected hole on the Grouting Pipe lateral wall, is provided with outer spiral shell on the lateral wall of the Grouting Pipe input terminal
Line, the output end of the Grouting Pipe are provided with slotted opening, and the other side on described device main body top is by being hingedly equipped with work
Dynamic door, the top of the dodge gate are equipped with handle by bolt, and the side of described device main body is equipped with control by bolt
The output end of device, the controller is electrically connected with the input terminal of motor and grouting pump by conducting wire.
2. a kind of grouting device for the efficient slip casting of mine laneway according to claim 1, which is characterized in that the branch
The bottom end of support leg passes through bolt and is equipped with universal wheel, and one end of universal wheel is provided with brake block.
3. a kind of grouting device for the efficient slip casting of mine laneway according to claim 1, which is characterized in that the electricity
The outside of machine is equipped with shield by bolt, and the two sides of shield are provided with radiating fin.
4. a kind of grouting device for the efficient slip casting of mine laneway according to claim 1, which is characterized in that the mountain
The centre of word agitating shaft is provided with helical mixing blade, and the two sides of mountain word agitating shaft are evenly arranged with stirrer gear, the stirrer gear
Top is equipped with intermeshing large-scale spiral blade.
5. a kind of grouting device for the efficient slip casting of mine laneway according to claim 1, it is characterised in that: the mountain
The two sides of word agitating shaft pass through support rod and are equipped with the first scraper plate, and the two sides of the mountain word agitating shaft bottom end pass through welding peace
Equipped with the second scraper plate.
6. a kind of grouting device for the efficient slip casting of mine laneway according to claim 1, which is characterized in that the note
The input terminal for starching pipe is leading portion, and the output end of Grouting Pipe is rear end, and leading portion is big compared with rear end, outside of the leading portion close to rear end one end
Ring type seal is provided on wall.
7. a kind of grouting device for the efficient slip casting of mine laneway according to claim 1, which is characterized in that described to add
Rubber pad is installed on the inside of material baffle, the rubber pad can wrap up charging baffle, 30-50 millimeters after the rubber pad.
8. a kind of grouting device for the efficient slip casting of mine laneway according to claim 4, which is characterized in that the mountain
Compressed air hose is installed on the inside of word agitating shaft, the mountain word agitating shaft border is provided with airport, the air bore dia 5-
10 millimeters.
9. a kind of application method of the grouting device for the efficient slip casting of mine laneway, which is characterized in that the mine laneway is high
The grouting device for imitating slip casting is the grouting device of the efficient slip casting of mine laneway described in claim 1 to 8 any claim, including
Following steps:
S1: grouting device starting is controlled by the controller, work stone and cement are added at the feed opening, passes through the dress
The intermeshing rotation of large size stirring blade described in body interior is set, the mixing work stone slurries are rotated under described device main body
Orientation is set, and the lower section stirrer gear, which constantly rotates, is uniformly mixed slurries；
S2: constantly declining top mixed serum rapidly slurries air blowing by the compressed air hose in the agitating shaft,
Accelerate the speed of the top large-scale spiral blade mixture, while can guarantee to be uniformly mixed again, accelerates the grouting pump
Working efficiency.
S3: controlling the grouting pump by the controller and extract slurries, in extraction process, to prevent mixed serum from blocking institute
Grouting pump is stated, compressed air hose is added in the grouting pump rear end, grouting pump can be carried out by the compressed air hose timely
Emergency case is handled, slurries can be transported to by designated position by the Grouting Pipe in this way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167286.5A CN109736851A (en) | 2019-03-06 | 2019-03-06 | A kind of grouting device and its application method for the efficient slip casting of mine laneway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910167286.5A CN109736851A (en) | 2019-03-06 | 2019-03-06 | A kind of grouting device and its application method for the efficient slip casting of mine laneway |
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| Publication Number | Publication Date |
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| CN109736851A true CN109736851A (en) | 2019-05-10 |
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|---|---|---|---|
| CN201910167286.5A Pending CN109736851A (en) | 2019-03-06 | 2019-03-06 | A kind of grouting device and its application method for the efficient slip casting of mine laneway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112627818A (en) * | 2020-11-17 | 2021-04-09 | 彬县水帘洞煤炭有限责任公司 | Ultra-fine cement pouring method based on loose rock coal seam grouting reinforcement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627818A (en) * | 2020-11-17 | 2021-04-09 | 彬县水帘洞煤炭有限责任公司 | Ultra-fine cement pouring method based on loose rock coal seam grouting reinforcement |
| CN112627818B (en) * | 2020-11-17 | 2023-06-27 | 彬县水帘洞煤炭有限责任公司 | Ultra-fine cement pouring method based on loose rock coal seam grouting reinforcement |
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Effective date of registration: 20230515 Address after: 274700 middle section of Dongxi Road, economic development zone, yuncheng county, Heze City, Shandong Province Applicant after: Shandong energy group Luxi Mining Co.,Ltd. Address before: 276000 No. 69 Commercial Street Road, Luozhuang District, Shandong, Linyi Applicant before: LINYI MINING GROUP Co.,Ltd. |