CN114251073B - Variable-diameter bag type mining grouting hole sealing device and method - Google Patents
Variable-diameter bag type mining grouting hole sealing device and method Download PDFInfo
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- CN114251073B CN114251073B CN202111609283.6A CN202111609283A CN114251073B CN 114251073 B CN114251073 B CN 114251073B CN 202111609283 A CN202111609283 A CN 202111609283A CN 114251073 B CN114251073 B CN 114251073B
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- 238000007789 sealing Methods 0.000 title claims abstract description 39
- 238000005065 mining Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005553 drilling Methods 0.000 claims abstract description 53
- 238000000605 extraction Methods 0.000 claims abstract description 36
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims description 29
- 238000007569 slipcasting Methods 0.000 claims description 16
- 238000005422 blasting Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 230000005489 elastic deformation Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 14
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Pipe Accessories (AREA)
Abstract
The invention belongs to the technical field of underground coal mine extraction drilling hole sealing; the invention provides a variable-diameter bag type mining grouting hole sealing device and method, which are characterized in that the inner ends of two grouting bags are fixed, the outer ends are pulled by traction ropes to axially move along a drainage pipeline, the grouting bags are fully expanded in the radial direction, the two ends of a drilling grouting section are effectively sealed, the grouting section can be ensured to enter the surrounding cracks of a drilling hole when grouting is carried out under pressure, and the problems that the grouting bags cannot fully contact with the wall of the drilling coal after the drilling hole is collapsed, and the drainage drilling hole is invalid or the drainage effect is poor are prevented.
Description
Technical Field
The invention relates to a hole sealing technology of underground extraction drilling holes of coal mines, in particular to a diameter-variable bag-type mining grouting hole sealing device and method.
Background
Because the coal form is severe at present, the price of the 'two-block one-injection' bag type grouting hole packer is relatively high, the price of each bag type grouting hole packer is up to 400-500 yuan, and the cost of the bag type grouting hole packer accounts for more than 60 percent of the cost of drilling hole sealing, so that the cost accounting is not matched. Meanwhile, as the mining level continuously extends downwards, factors such as variable geological conditions, broken coal bodies, small coal seam firmness coefficient, increased ground stress and the like of coal mining cause serious hole collapse of drilling, the hole diameter of the drilling is far greater than the diameter of a drill bit, and the conventional bag hole packer cannot meet the requirement of plugging grouting at two ends of the drilling under pressure. Therefore, many mines in China basically abandon the use of a two-plug one-injection hole sealing process, so that the hole sealing process is backward and backward, the hole sealing quality is low, the gas extraction efficiency is seriously influenced, the extraction standard reaching time is shortened, the extraction engineering is half-done, and the gas extraction of the coal mine has a plurality of problems, and the main appearance is that: the grouting pressure of the hole sealing section is low, and hole sealing materials cannot enter into cracks around the drill hole, so that the phenomenon of hole leakage after hole sealing is serious, the gas extraction concentration is too low, the extraction effect is poor, and the extraction efficiency is low; moreover, the gas extraction concentration can not reach the utilization concentration, so that the gas utilization becomes difficult, and the low-concentration gas has to be discharged into the atmosphere, thereby not only causing huge waste of gas resources, but also causing pollution to the atmosphere. Hole sealing requirements are different when holes are drilled in different apertures, so that the gas extraction effect cannot be guaranteed, and the gas extraction method is used in the production process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a variable-diameter bag-type mining grouting hole sealing device and method, which are mainly used for solving the problems that a hole collapse Duan Nan is blocked and the diameter of a bag is large and difficult to send in by adopting a bag-type grouting hole sealing process in coal and rock roadway tunneling and coal seam working face extraction drilling.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a mining slip casting hole sealing device of variable diameter bag formula, includes two bag formula slip casting hole sealers and a blast valve, and the blast valve is arranged in the slip casting pipe between two bag formula slip casting hole sealers; the bag type grouting hole packer is all arranged in the axial direction of the extraction pipeline, comprises a grouting bag, a fixing clamp and a movable clamp, wherein the fixing clamp is located at one end of the grouting bag away from a drilling hole opening, the movable clamp is located at one end of the grouting bag close to the drilling hole opening, a pulley is arranged on the outer wall of the fixing clamp, a lantern ring is arranged on the outer wall of the movable clamp, one end of a traction rope is arranged outside a drilling hole, and the other end of the traction rope bypasses the pulley to connect the lantern ring.
Further, the extraction pipeline is provided with a plurality of unidirectional tooth grooves which prevent the movable clamp from moving towards the hole opening of the drill hole, and the fixed clamp and the movable clamp are positioned at two ends of the plurality of unidirectional tooth grooves.
Further, the tooth groove height of the unidirectional tooth grooves is 5-10 mm, the tooth groove spacing is 30-60 mm, and the number of the unidirectional tooth grooves is not less than 3.
Further, the fixing clamp is fixed on the extraction pipeline through a nut and a threaded rod.
Further, one end of the grouting pipe penetrates through the grouting bag close to the drilling hole opening and is arranged in the grouting bag far away from the drilling hole opening, and the other end of the grouting pipe is connected with the grouting pump.
Further, the grouting pipe is provided with a one-way valve, and the one-way valve is positioned at the grouting bag close to the drilling hole.
Further, a grouting section between the two grouting bags is provided with a grouting pipe.
Further, the movable clamp is made of elastic materials.
Further, the grouting bag bears the maximum pressure of not less than 1.2MPa.
According to the variable-diameter bag-type mining grouting hole sealing method, based on the variable-diameter bag-type mining grouting hole sealing device, the axial position of the movable clamp on the extraction pipeline is adjusted by pulling the traction rope, the one-way tooth socket prevents the movable clamp from moving reversely, the grouting bag expands radially after grouting, and the grouting bag is used for plugging two sections of a drilling grouting section, and the method specifically comprises the following steps:
step 1, installing two grouting bags on a pumping pipeline, respectively fixing two fixing clamps, and connecting a traction rope by a pulley to move the clamps;
step 2, pulling a traction rope, under the action of the traction rope, moving the clamp to elastically deform, moving the clamp to move into the drill hole along the unidirectional tooth slot, and continuously pulling the traction rope until the grouting bag is fully contacted with the wall of the drill hole or the traction rope cannot be pulled, so that the traction rope is fixed on a metal net or an anchor rod of an orifice;
step 3, repeating the operation of the step 2, pulling the other traction rope, and fixing the traction rope;
step 4, connecting a grouting pipe with a grouting pump grouting pipe, starting the grouting pump for grouting, wherein the grouting comprises the following steps of:
step 4.1, two grouting bags simultaneously start grouting, and when grouting is full of slurry and the grouting pressure is greater than 1.0MPa, a blasting valve is opened to start grouting to a grouting section;
step 4.2, the grouting section is filled with slurry and the pressure is maintained at 1.0-1.2MPa until the slurry returning pipe flows out of the slurry;
and 5, binding the slurry returning pipe and the slurry injecting pipe, fixing the slurry returning pipe and the slurry injecting pipe on the roadway side, and finishing the slurry injection.
In summary, the invention has the following beneficial effects:
according to the invention, the inner end of the grouting bag close to the extraction pipeline is fixedly connected to the extraction pipeline through the fixed clamp, the movable clamp adjusts the axial position on the extraction pipeline by using the traction rope, so that the radial size of the grouting bag is increased, the grouting bag can be ensured to effectively seal the two ends of the drilling grouting section, and the grouting section is ensured to perform grouting under pressure; the invention can ensure the quality of the hole sealing of the extraction drilling holes, improve the concentration and the extraction purity of single-hole extraction gas, and reduce the cost of single-hole sealing, and solves the problems that the hole collapse Duan Nan of the extraction drilling holes of coal and rock tunnels and coal seam working faces is blocked by adopting a bag-type grouting hole sealing process, and the diameter of a bag is large and difficult to send.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of grouting effect according to the present invention;
FIG. 3 is a top view of the retainer clip of the present invention;
fig. 4 is a front view of the retainer clip of the present invention.
In the figure: 1-a pumping pipeline; 2-grouting bags; 3-metal rings; 4-pulling ropes; 5-pipeline joint; 6, drilling holes; 7-pulleys; 8-fixing a clamp; 9-a one-way tooth slot; 10-moving the clamp; 11-grouting section; 12-blasting valve; 13-grouting pipe; 14-a one-way valve; 15-a slurry returning pipe.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
For convenience of description, the following description will be made with respect to the direction corresponding to the direction of the drawing itself, but the structure of the present invention is not limited thereto.
As shown in fig. 1-4, the invention discloses a variable-diameter bag-type mining grouting hole sealing device, which ensures the quality of grouting holes, improves the concentration of single-hole extracted gas and the extraction purity, reduces the cost of single-hole sealing, and comprises two bag-type grouting hole sealing devices and a blasting valve 12, wherein the blasting valve 12 is arranged on a grouting pipe 13 between the two bag-type grouting hole sealing devices; the two bag-type grouting hole sealers are both arranged in the axial direction of the extraction pipeline 1; the bag type grouting hole packer comprises a grouting bag 2, a fixed clamp 8 and a movable clamp 10, wherein the grouting bag 2 is made of a material with radial expansion, can be made of a high-elasticity polymer compound, has flame-retardant and antistatic properties, has working pressure of not less than 2.0MPa, and has dwell time of not less than 24 hours; the fixing clamp 8 is located at one end of the grouting bag 2 far away from the orifice of the drilling hole 6, the fixing clamp 8 is fixed on the extraction pipeline 1 through a nut and a threaded rod, the fixing clamp 8 comprises two parts, one part is a clamp sheet, the other part is a threaded rod, in the embodiment, the fixing clamp 8 is processed by adopting high-strength steel, the joint of the clamp sheet and the threaded rod is subjected to round corner processing, the clamp sheet is 85mm long, wide, thick and is 85mm, 15mm and 2mm, the threaded rod is a semi-cylinder, threads are arranged on the round side, the height of the threaded rod is 10mm, the diameter of the threaded rod is 5mm, and the sizes of all parts of the fixing clamp 8 can be adjusted according to actual working conditions; the movable clamp 10 is positioned at one end of the grouting bag 2 close to the drilling hole opening, and the movable clamp 10 is made of elastic materials; the pulley 7 is arranged on the outer wall of the fixed clamp 8, so that the outer end of the grouting bag 2 can be smoothly driven to move towards the bottom of the hole along the extraction pipeline 1 when the traction rope 4 is pulled by the orifice, in the embodiment shown in fig. 1, one pulley 7 is respectively arranged on threaded rods on two sides of the fixed clamp 8, nuts are arranged on the sides of the pulley 7 close to the wall of the hole, the pulley is smooth, the diameter of the pulley is 10mm, and an anti-slip baffle is arranged on the side of the pulley 7 close to the bottom of the hole, so that the traction rope is prevented from being separated from a slideway; the outer wall of the movable clamp 10 is provided with the lantern ring 3, the movable clamp 10 is made of high-molecular elastic materials, one end of the traction rope 4 is arranged outside the drilling hole 6, the other end of the traction rope bypasses the pulley 7 and is connected with the lantern ring 3, one ends, far away from the hole openings, of the two grouting bags 2 are fixed through the fixed clamp 8, one ends, close to the hole openings, axially move along the extraction pipeline 1, the size of the grouting bags 2 is changed from axial direction to radial direction in a telescopic mode, and the purpose of radial deformation increase is achieved.
One end of the traction rope 4 is connected to the lantern ring 3, the traction rope 4 bypasses a pulley on the fixed clamp 8 and is fixed on the manual winch at the orifice along the extraction pipeline 1, the lengths of the traction ropes 4 used at two sides of the grouting bag 2 are required to be consistent, and accidents such as clamping of the grouting bag 2, disconnection of a pipeline joint and the like caused by uneven stress at two sides when the manual winch contracts the traction rope are prevented.
The grouting section 11 between the two grouting bags 2 is provided with a grouting pipe 15.
The drainage pipeline 1 is provided with a plurality of unidirectional tooth grooves 9 which prevent the movable clamp 10 from moving towards the hole opening of the drilling hole 6, the fixed clamp 8 and the movable clamp 10 are positioned at two ends of the unidirectional tooth grooves 9, the tooth groove height of the unidirectional tooth grooves 9 is 5-10 mm, the tooth groove spacing is 30-60 mm, the number of the unidirectional tooth grooves 9 is not less than 3, in the embodiment shown in fig. 1, the corresponding position of each grouting bag 2 is provided with 5 unidirectional tooth grooves 9, the axial included angle between the unidirectional tooth grooves 9 and the drainage pipeline 1 is 30 degrees, and constructors can adjust the number, the spacing and the tooth groove height of the unidirectional tooth grooves 9 according to actual demands in actual use.
One end of the grouting pipe 13 penetrates through the grouting bag 2 close to the orifice of the drilling hole 6 and is arranged in the grouting bag 2 far away from the orifice of the drilling hole 6, and the other end of the grouting pipe is connected with a grouting pump; the grouting pipe 13 is provided with a one-way valve 14, and the one-way valve 14 is positioned at the grouting bag 2 near the orifice of the drilling hole 6. After the grouting bag pressure meets the condition, the one-way valve 14 is opened to grouting the grouting section 11; when the grouting section 11 is filled with slurry, the check valve 14 can prevent the slurry from flowing out of the grouting pipe.
The invention also discloses a variable-diameter bag type mining grouting hole sealing method, which is based on the variable-diameter bag type mining grouting hole sealing device, the axial position of the movable clamp 10 on the extraction pipeline 1 is regulated by pulling the traction rope 4, the unidirectional tooth socket 9 prevents the movable clamp 10 from moving reversely, the grouting bag expands radially after grouting, and the grouting bag is used for plugging two sections of a drilling grouting section, and the method specifically comprises the following steps:
and step 1, installing two grouting bags 2 on a pumping pipeline 1, respectively fixing two fixing hoops 8, and connecting a traction rope 4 with a movable hoop 10 by bypassing a pulley 7.
And 2, pulling a traction rope 4, under the action of the traction rope 4, the movable clamp 10 is elastically deformed, the movable clamp 10 moves into the drilling hole 6 along the unidirectional tooth slot 9, and the traction rope 4 is pulled continuously until the grouting bag 2 is fully contacted with the wall of the drilling hole 6 or the traction rope 4 cannot be pulled, so that the traction rope 4 is fixed on a metal net or an anchor rod of an orifice.
And 3, repeating the operation of the step 2, pulling the other traction rope 4, and fixing the traction rope 4.
Step 4, the grouting pipe 13 is connected with a grouting pump outlet pipe, the grouting pump is started for grouting, and the grouting comprises the following steps:
step 4.1, two grouting bags 2 start grouting at the same time, the grouting pressure is judged according to a grouting pump outlet pressure gauge, when grouting is full and the grouting pressure is greater than 1.0MPa, a blasting valve 12 is opened, and grouting is started to a grouting section 11; when grouting into the grouting bag 2 and the drilling hole 6, the grouting bag 2 is fully expanded in the radial direction, so that the grouting bag can be ensured to effectively seal the two ends of the grouting section 11, the grouting section 11 can enter the peripheral cracks of the drilling hole when grouting under pressure, and after the drilling hole collapses, the grouting bag is effectively prevented from being fully contacted with the coal wall of the drilling hole, and the grouting section 11 grout bypasses the grouting bag 2 to enter the extraction pipeline 1, so that the problems of invalid extraction drilling hole or poor extraction effect are caused.
Step 4.2, the grouting pressure is displayed by a pressure gauge at the grouting pump outlet pipe, the grouting section 11 is full of slurry and the pressure is maintained at 1.0-1.2MPa until the slurry flows out from the slurry return pipe 15;
and 5, binding the slurry returning pipe 15 and the slurry injecting pipe 13, fixing the slurry returning pipe and the slurry injecting pipe on the roadway side, and finishing the slurry injection.
According to the invention, by changing the structure of the bag type grouting hole packer, the grouting bag can axially move, so that the axial and radial sizes of the grouting bag are changed, and the hole sealing requirements of different apertures are met; when grouting into the grouting bag and the drilling hole, the grouting bag can be fully expanded in the radial direction, so that the grouting bag can be ensured to effectively seal two ends of the drilling hole grouting section, the grouting section can enter the peripheral cracks of the drilling hole when grouting is carried out under pressure, the situation that the grouting bag cannot be fully contacted with the coal wall of the drilling hole after the drilling hole is collapsed, and grouting section slurry bypasses the grouting bag to enter a drainage pipeline, so that drainage drilling hole failure or poor drainage effect is caused.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (10)
1. The utility model provides a mining slip casting hole sealing device of variable diameter bag formula, includes two bag formula slip casting hole sealers and a blast valve (12), its characterized in that: the blasting valve (12) is arranged on a grouting pipe (13) between two bag type grouting hole sealers;
the utility model provides a bag formula slip casting hole packer, the axial direction of taking out mining pipeline (1) is all arranged in to bag formula slip casting hole packer, bag formula slip casting hole packer includes slip casting bag (2), fixed clamp (8) and removal clamp (10), fixed clamp (8) are located slip casting bag (2) and keep away from drilling (6) drill way one end, remove clamp (10) and be located slip casting bag (2) and be close to drilling drill way one end, fixed clamp (8) outer wall sets up pulley (7), remove clamp (10) outer wall sets up metal ring (3), outside drilling (6) is arranged in to haulage rope (4) one end, the pulley (7) are connected to the other end, one haulage rope (4) is pulled, under haulage rope (4) effect, remove clamp (10) and take place elastic deformation, remove clamp (10) along unidirectional tooth groove (9) to drilling (6) in.
2. The variable-diameter bag-type mining grouting hole sealing device according to claim 1, wherein: the extraction pipeline (1) is provided with a plurality of unidirectional tooth grooves (9) which prevent the movable clamp (10) from moving towards the orifice of the drilling hole (6), and the fixed clamp (8) and the movable clamp (10) are positioned at two ends of the unidirectional tooth grooves (9).
3. The variable-diameter bag type mining grouting hole sealing device according to claim 2, wherein: the tooth space height of the unidirectional tooth spaces (9) is 5-10 mm, the tooth space distance is 30-60 mm, and the number of the unidirectional tooth spaces (9) is not less than 3.
4. The variable-diameter bag-type mining grouting hole sealing device according to claim 1, wherein: the fixing clamp (8) is fixed on the extraction pipeline (1) through a nut and a threaded rod.
5. The variable-diameter bag-type mining grouting hole sealing device according to claim 1, wherein: one end of the grouting pipe (13) penetrates through the grouting bag (2) close to the orifice of the drilling hole (6) and is arranged in the grouting bag (2) far away from the orifice of the drilling hole (6), and the other end of the grouting pipe is connected with a grouting pump.
6. The variable-diameter bag-type mining grouting hole sealing device according to claim 1 or 5, wherein: the grouting pipe (13) is provided with a one-way valve (14), and the one-way valve (14) is positioned at the grouting bag (2) close to the orifice of the drilling hole (6).
7. The variable-diameter bag-type mining grouting hole sealing device according to claim 1, wherein: a grouting section (11) between the two grouting bags (2) is provided with a grouting pipe (15).
8. The variable-diameter bag-type mining grouting hole sealing device according to claim 1, wherein: the movable clamp (10) is made of elastic materials.
9. The variable-diameter bag-type mining grouting hole sealing device according to claim 1, wherein: the grouting bag (2) bears the maximum pressure not less than 1.2MPa.
10. A variable diameter bag type mining grouting hole sealing method, based on the variable diameter bag type mining grouting hole sealing device as set forth in any one of claims 1-9, characterized in that: through pulling haulage rope (4) adjustment removal clamp (10) axial position on taking out mining pipeline (1), one-way tooth's socket (9) prevent to remove clamp (10) reverse movement, and slip casting bag radial expansion realizes two sections of slip casting bag shutoff drilling slip casting section after the slip casting, specifically includes the following step:
step 1, installing two grouting bags (2) on a pumping pipeline (1), respectively fixing two fixing hoops (8), and connecting a traction rope (4) with a movable hoop (10) by bypassing a pulley (7);
step 2, pulling a traction rope (4), under the action of the traction rope (4), elastically deforming a movable clamp (10), moving the movable clamp (10) along a unidirectional tooth slot (9) into a drill hole (6), and continuously pulling the traction rope (4) until the grouting bag (2) is fully contacted with the wall of the drill hole (6) or the traction rope (4) cannot be pulled, so that the traction rope (4) is fixed on a metal net or an anchor rod of an orifice;
step 3, repeating the operation of the step 2, pulling the other traction rope (4), and fixing the traction rope (4);
step 4, a grouting pipe (13) is connected with a grouting pump outlet pipe, a grouting pump is started for grouting, and the grouting comprises the following steps:
step 4.1, two grouting bags (2) start grouting at the same time, when grouting is full and grouting pressure is greater than 1.0MPa, a blasting valve (12) is opened, and grouting to a grouting section (11) is started;
step 4.2, the grouting section (11) is filled with slurry and the pressure is maintained at 1.0-1.2MPa until the slurry returning pipe (15) flows out of the slurry;
and 5, binding the slurry returning pipe (15) and the slurry injecting pipe (13), fixing the slurry returning pipe and the slurry injecting pipe on the roadway side, and finishing the slurry injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111609283.6A CN114251073B (en) | 2021-12-27 | 2021-12-27 | Variable-diameter bag type mining grouting hole sealing device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111609283.6A CN114251073B (en) | 2021-12-27 | 2021-12-27 | Variable-diameter bag type mining grouting hole sealing device and method |
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| CN114251073A CN114251073A (en) | 2022-03-29 |
| CN114251073B true CN114251073B (en) | 2023-09-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115450223B (en) * | 2022-09-02 | 2023-06-13 | 华煜建设集团有限公司 | Front support applied to foundation pit grouting steel pipe in soft soil area |
| CN116480336B (en) * | 2023-05-08 | 2025-07-29 | 焦作煤业（集团）有限责任公司 | Deep hole gas pressure fixed-point measuring system and measuring method thereof |
| CN117703299B (en) * | 2024-02-06 | 2024-05-14 | 山东科技大学 | Visual sealing device and sealing method for gas extraction drilling |
| CN120231608B (en) * | 2025-05-30 | 2025-08-22 | 湖南大学 | A retractable grouting tube-bladder-electrode system and its use method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3578079A (en) * | 1969-11-12 | 1971-05-11 | Schlumberger Technology Corp | Apparatus for plugging well bores with hardenable fluent substances |
| US4258788A (en) * | 1978-07-21 | 1981-03-31 | Westbay Instruments Ltd. | CPI Casing |
| CN102268973A (en) * | 2010-06-04 | 2011-12-07 | 淮南矿业(集团)有限责任公司 | Hole sealing device |
| CN102966329A (en) * | 2011-09-01 | 2013-03-13 | 淮南矿业(集团)有限责任公司 | Drainage borehole plugging device and method |
| CN108086944A (en) * | 2017-12-09 | 2018-05-29 | 山西晋煤集团技术研究院有限责任公司 | Reusable bag type paste is mining fluid filling hole sealing device and its grouting method |
| CN110043220A (en) * | 2019-05-17 | 2019-07-23 | 河南理工大学 | A kind of layer-through drilling hole sealing device and method for sealing |
| CN211598596U (en) * | 2020-01-02 | 2020-09-29 | 神华神东煤炭集团有限责任公司 | Grouting hole packer |
| CN112097726A (en) * | 2020-09-16 | 2020-12-18 | 淮南矿业(集团)有限责任公司 | Device and method for measuring expansion deformation of protected layer |
| CN112360386A (en) * | 2020-12-29 | 2021-02-12 | 山西工程技术学院 | Hydraulic drive positioning type sealing method for inclined large-diameter drilling of coal mine |
| CN214247273U (en) * | 2021-02-05 | 2021-09-21 | 山东敬泰工程科技有限公司 | Adjustable mining hole packer |
| CN214330582U (en) * | 2020-08-28 | 2021-10-01 | 晋城蓝焰煤业股份有限公司 | Comprehensive blowout preventing device for directional drilling construction in underground coal mine |
| CN113802580A (en) * | 2021-08-29 | 2021-12-17 | 深圳市勘察测绘院(集团)有限公司 | A cementer that is used for dregs side slope to strut anti-collapse |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GC0000398A (en) * | 2001-07-18 | 2007-03-31 | Shell Int Research | Method of activating a downhole system |
| WO2013191991A1 (en) * | 2012-06-21 | 2013-12-27 | Exxonmobil Upstream Research Company | Systems and methods for stimulating a plurality of zones of a subterranean formation |
-
2021
- 2021-12-27 CN CN202111609283.6A patent/CN114251073B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3578079A (en) * | 1969-11-12 | 1971-05-11 | Schlumberger Technology Corp | Apparatus for plugging well bores with hardenable fluent substances |
| US4258788A (en) * | 1978-07-21 | 1981-03-31 | Westbay Instruments Ltd. | CPI Casing |
| CN102268973A (en) * | 2010-06-04 | 2011-12-07 | 淮南矿业(集团)有限责任公司 | Hole sealing device |
| CN102966329A (en) * | 2011-09-01 | 2013-03-13 | 淮南矿业(集团)有限责任公司 | Drainage borehole plugging device and method |
| CN108086944A (en) * | 2017-12-09 | 2018-05-29 | 山西晋煤集团技术研究院有限责任公司 | Reusable bag type paste is mining fluid filling hole sealing device and its grouting method |
| CN110043220A (en) * | 2019-05-17 | 2019-07-23 | 河南理工大学 | A kind of layer-through drilling hole sealing device and method for sealing |
| CN211598596U (en) * | 2020-01-02 | 2020-09-29 | 神华神东煤炭集团有限责任公司 | Grouting hole packer |
| CN214330582U (en) * | 2020-08-28 | 2021-10-01 | 晋城蓝焰煤业股份有限公司 | Comprehensive blowout preventing device for directional drilling construction in underground coal mine |
| CN112097726A (en) * | 2020-09-16 | 2020-12-18 | 淮南矿业(集团)有限责任公司 | Device and method for measuring expansion deformation of protected layer |
| CN112360386A (en) * | 2020-12-29 | 2021-02-12 | 山西工程技术学院 | Hydraulic drive positioning type sealing method for inclined large-diameter drilling of coal mine |
| CN214247273U (en) * | 2021-02-05 | 2021-09-21 | 山东敬泰工程科技有限公司 | Adjustable mining hole packer |
| CN113802580A (en) * | 2021-08-29 | 2021-12-17 | 深圳市勘察测绘院(集团)有限公司 | A cementer that is used for dregs side slope to strut anti-collapse |
Non-Patent Citations (1)
| Title |
|---|
| 不同封孔工艺高位钻孔抽采效果分析;康锴;《能源与节能》;131-133页 * |
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