CN112267848A - Grouting method and device capable of automatically sealing holes and preventing grouting pump pipeline from being blocked - Google Patents
Grouting method and device capable of automatically sealing holes and preventing grouting pump pipeline from being blocked Download PDFInfo
- Publication number
- CN112267848A CN112267848A CN202011151982.6A CN202011151982A CN112267848A CN 112267848 A CN112267848 A CN 112267848A CN 202011151982 A CN202011151982 A CN 202011151982A CN 112267848 A CN112267848 A CN 112267848A
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- grouting
- pipe
- rubber hose
- perforated
- preventing
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- 238000007789 sealing Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000007569 slipcasting Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000011440 grout Substances 0.000 claims description 14
- 238000005553 drilling Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000004873 anchoring Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000012466 permeate Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000010878 waste rock Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
A grouting method and apparatus for automatic hole sealing and preventing grouting pump pipeline from blocking, utilize multiple floral tubes and rubber hose arranged on floral tube to slip casting hole sealing, when the increase slip casting pressure of the grouting amount rises to the set value continuously, the thick liquid flows into the rubber hose continuously through the floral tube, the rubber hose is expanded continuously, after expanding and closely fitting with the orifice pipe, form firm thick liquid concretion between rubber hose and orifice pipe, finish the automatic hole sealing; the grouting pipeline is optimally designed, grouting and hole sealing are integrated, and the blockage of a grouting pipe connected with a grouting pump is effectively avoided. On the basis of ensuring the normal operation of the grouting fire extinguishing process, the hole sealing problem is solved, the grouting system can continuously and smoothly operate, and the efficiency of grouting fire extinguishing operation is improved.
Description
Technical Field
The invention relates to a method and a device for automatically sealing holes and preventing grouting pump pipelines from being blocked, which are particularly suitable for preventing the difficult hole sealing in the drilling and grouting process and the blockage of grouting pipes of a grouting pump.
Background
Because most of coal mine waste rock hills adopt an open-air accumulation mode, the accumulated temperature of heat in the waste rock hills is increased in the long-term accumulation process, and the waste rock hills are likely to be spontaneously combusted. For the gangue dump with spontaneous combustion disasters, the common treatment modes mainly comprise the steps of digging a fire source, covering loess on the surface and grouting for extinguishing fire. For the scheme of digging and removing the fire source, the method is only suitable for the condition that the buried depth of the fire source is shallow, and has larger limitation. To covering the loess scheme, can only play the effect that transient reduction surface leaks out, inside high temperature region still exists, and the condition of a fire can be after a period of time recombusted. Therefore, the problem of spontaneous combustion of the waste rock is solved by adopting a water injection/grouting fire extinguishing method. The grouting fire extinguishing is the most common means for the waste rock hills, and the concrete contents of the grouting fire extinguishing include drilling position selection, grouting pipe design, grouting material selection, hole sealing technology, grouting related parameter determination and the like.
When a grouting fire extinguishing measure is adopted, if the gangue dump structure is loose, the surface layer cracks are large, and the hole sealing quality is difficult to ensure in the grouting process. Meanwhile, after grouting is finished, the accumulated slurry in the grouting pipe connected with the grouting pump is quickly condensed to often cause blockage of the grouting pipe, so that great inconvenience is brought to grouting and fire extinguishing work. For the waste rock mountain grouting, the problems of high hole sealing difficulty, easy blockage of a grouting pipe connected with a grouting pump and the like exist in the grouting process, and the problem is not well solved in the prior art.
Therefore, how to realize the effective hole sealing in the grouting fire extinguishing process and ensure that a grouting pipeline connected with a grouting pump cannot be blocked is the problem that the grouting fire extinguishing work is urgently solved at present.
Disclosure of Invention
The technical problem is as follows: the invention aims to overcome the defects in the existing grouting technology and provides a grouting method and device which are simple in structure and convenient to operate, solve the problem of difficult hole sealing in the grouting process, automatically seal holes and prevent pipelines of a grouting pump from being blocked.
The technical scheme is as follows: in order to achieve the purpose, the grouting method for automatically sealing the hole and preventing the pipeline of the grouting pump from being blocked comprises the following steps:
a. in the drilling process, firstly, an anchoring agent is utilized to fix the orifice pipe, then three perforated pipes are respectively led into the drilled hole through a drilling machine, the three perforated pipes are connected through threads, and the outer layer of the third perforated pipe is wrapped by a rubber hose;
b. in the grouting process, a valve B on the three-way pipe is opened, the grout flows into the perforated pipe section through the three-way pipe and continuously permeates into the mountain body, the grouting pressure is continuously increased along with the increase of the grouting amount, when the grouting pressure is increased to a critical value of 1.5MPa, the grout continuously flows into the rubber hose through the perforated pipe, the volume of the rubber hose is continuously expanded, and after the rubber hose is expanded to be tightly attached to the perforated pipe, firm grout solidified bodies are formed between the rubber hose and the perforated pipe, namely, the automatic hole sealing is completed;
c. after grouting, the valve B on the three-way pipe is closed, the valve A is opened, the inlet pipe of the grouting pipe is placed into the clear water bucket, clear water is pressed in to flush the grouting pump and the grouting pipe until water flowing out of the grouting pipe is in a non-turbid state, and the cleaning work of the grouting pipe of the grouting pump is finished, so that the grouting pipe of the grouting pump is prevented from being blocked.
The grouting device for automatically sealing the hole and preventing the pipeline of the grouting pump from being blocked comprises a perforated pipe section, an orifice pipe, a connecting pipe and a three-way pipe, wherein the orifice pipe is fixed at the orifice, the perforated pipe section comprises three perforated pipes which are sequentially connected together, a rubber hose which can stretch and bear pressure is sleeved on a third perforated pipe, a first perforated pipe and a second perforated pipe penetrate through the orifice pipe and extend into a drill hole, the third perforated pipe penetrates through the orifice pipe, the top of the third perforated pipe is connected with the connecting pipe through a steel pipe sleeve, the connecting pipe is connected with the output end of the three-way pipe, and two input ends of the three-way pipe are respectively connected with a grouting pipe and a water injection pipe.
The steel pipe sleeve is in threaded connection with the third perforated pipe.
The three perforated pipes are sequentially connected together through threads.
The rubber hose is fixed outside the third perforated pipe through threaded connection.
And the three-way pipe is provided with a valve B for controlling the output of slurry and a valve A for controlling water injection.
Has the advantages that: due to the adoption of the technical scheme, the grouting pipeline is optimally designed, grouting and hole sealing are integrated, and the blockage of a grouting pipe connected with a grouting pump is effectively avoided. On the basis of ensuring the normal operation of the grouting fire extinguishing process, the hole sealing problem is solved, the grouting system can continuously and smoothly operate, and the efficiency of grouting fire extinguishing operation is improved. Compared with the prior art, the main advantages are as follows:
1) the hole sealing can be automatically carried out along with the rise of grouting pressure in the grouting process, the larger the grouting pressure is, the better the hole sealing effect is, and the problem that the hole sealing quality is difficult to ensure in the grouting process is effectively avoided;
2) can form firm bodies at the grouting hole, and can not cause hole collapse accidents after grouting.
3) Can wash the slip casting pipeline after slip casting finishes, greatly reduce the emergence of the slip casting pipe jam problem of slip casting pump.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention.
In the figure: 1, 2, 3-floral tubes; 4-a rubber hose; 5-steel pipe sleeve; 6-connecting pipe; 7-orifice tube; 8-water injection pipe; 9-a three-way pipe; 10-grouting pipe.
Detailed Description
The invention will be further described with reference to examples in the drawings to which:
the use method of the grouting device for automatically sealing the hole and preventing the pipeline of the grouting pump from being blocked comprises the following steps
a. In the drilling process, firstly, an anchoring agent is used for fixing the orifice pipe 7, then three perforated pipes 1, 2 and 3 are respectively led into the drill hole through a drilling machine, the three perforated pipes are connected through threads, and the outer layer of the third perforated pipe 3 is wrapped with a rubber hose 4;
b. in the grouting process, a valve B on a three-way pipe 9 is opened, grout flows into a perforated pipe section through the three-way pipe 9 and continuously permeates into a mountain body, the grouting pressure is continuously increased along with the increase of the grouting amount, when the grouting pressure is increased to a critical value of 1.5MPa, the grout continuously flows into a rubber hose 4 through the perforated pipe 3, the volume of the rubber hose 4 is continuously expanded, and after the rubber hose 4 is expanded to be tightly attached to a perforated pipe 7, firm grout concretion is formed between the rubber hose 4 and the perforated pipe 7, namely, automatic hole sealing is finished;
c. after grouting, the valve B on the three-way pipe 9 is closed, the valve A is opened, the inlet pipe of the grouting pipe 10 is placed into the clear water bucket, clear water is pressed in to flush the grouting pump and the grouting pipe until the water flowing out of the grouting pipe is in a non-turbid state, and the cleaning work of the grouting pipe of the grouting pump is finished, so that the grouting pipe of the grouting pump is prevented from being blocked.
The specific implementation steps are as follows:
the first step is as follows: determining a specific position of grouting drilling construction, lowering an orifice pipe 7, and fixing the orifice pipe 7 and coal rocks around an orifice by using an anchoring agent;
the second step is that: in the drilling process, a drilling machine is used for conveying three perforated pipes 1, 2 and 3 into a drill hole respectively, and a rubber hose 4 is fixed on the outer layer of the third perforated pipe 3;
the third step: the rubber hose 4 is connected with the steel pipe sleeve 5, the steel pipe sleeve 5 is connected with the connecting pipe 6 through a threaded connection mode, and the grouting pipe 10, the connecting pipe 6 and the water injection pipe 8 are connected through a three-way pipe 9 with a valve A, B;
the fourth step: after grouting begins, the grout continuously flows into the gangue dump from the grouting pipe 10, the connecting pipe 6, the third perforated pipe 3, the second perforated pipe (2) and the first perforated pipe 1; along with the increase of the grouting amount, the cracks in the gangue dump are filled, the grouting pressure gradually rises, when the grouting pressure reaches the pressure critical value of 1.5MPa, the grout flows into the rubber hose 4 through the third perforated pipe 3, the volume of the rubber hose 4 is continuously expanded until the grout is tightly attached to the orifice pipe 7, a firm grout solidified body is formed between the rubber hose 4 and the orifice pipe 7, and the automatic hole sealing of the grouting hole is completed;
fifthly, after hole sealing is finished, closing a valve B on the three-way pipe 9 with a valve A, B, and opening the valve A;
and sixthly, putting the inlet of the grouting pipe 10 into a clear water bucket, pressing in clear water to clean the grouting pipe until the water flowing out of the water injection pipe is in a non-turbid state, closing the grouting pump, effectively avoiding blockage and ensuring continuous and effective grouting work.
The grouting device for automatically sealing holes and preventing the grouting pump pipeline from being blocked comprises a perforated pipe section, an orifice pipe 7, a connecting pipe 6 and a three-way pipe 9, wherein the orifice pipe 7 is fixed at the orifice, the perforated pipe section comprises three perforated pipes 1, 2 and 3 which are sequentially connected together, and the three perforated pipes 1, 2 and 3 are sequentially connected together through threads. The third perforated pipe 3 is sleeved with a flexible and pressure-bearing rubber hose 4, and the rubber hose 4 is fixed outside the third perforated pipe 3 through threaded connection. The first and second perforated pipes 1 and 2 penetrate through the orifice pipe 7 and extend into the drill hole, the third perforated pipe 3 partially penetrates through the orifice pipe 7, the top of the third perforated pipe 3 is connected with the connecting pipe 6 through the steel pipe sleeve 5, and the steel pipe sleeve 5 is in threaded connection with the third perforated pipe 3. The connecting pipe 6 is connected with the output end of a three-way pipe 9, two input ends of the three-way pipe 9 are respectively connected with a grouting pipe 10 and a water injection pipe 8, and the three-way pipe 9 is provided with a valve B for controlling the output of grout and a valve A for controlling water injection.
Claims (6)
1. A grouting method for automatically sealing holes and preventing pipelines of a grouting pump from being blocked is characterized by comprising the following steps:
a. in the drilling process, firstly, an anchoring agent is used for fixing a hole pipe (7), then three perforated pipes (1, 2 and 3) are respectively led into a drill hole through a drilling machine, the three perforated pipes are connected through threads, and the outer layer of the third perforated pipe (3) is wrapped with a rubber hose (4);
b. in the grouting process, a valve B on the three-way pipe (9) is opened, grout flows into the perforated pipe section through the three-way pipe (9) and continuously permeates into a mountain body, the grouting pressure is continuously increased along with the increase of the grouting amount, when the grouting pressure is increased to a critical value of 1.5MPa, the grout continuously flows into the rubber hose (4) through the perforated pipe (3), the volume of the rubber hose (4) is continuously expanded, and after the rubber hose (4) is expanded to be tightly attached to the perforated pipe (7), a firm grout solidified body is formed between the rubber hose (4) and the perforated pipe (7), namely, automatic hole sealing is completed;
c. after grouting, closing a valve B on the three-way pipe (9), opening a valve A, putting an inlet pipe of the grouting pipe (10) into a clear water barrel at the moment, pressing clear water in to flush the grouting pump and the grouting pipe until water flowing out of the grouting pipe is in a non-turbid state, namely finishing the cleaning work of the grouting pipe of the grouting pump, and further preventing the grouting pipe of the grouting pump from being blocked.
2. The grouting device for automatically sealing and preventing the grouting pump pipeline from being blocked by implementing the method of claim 1 comprises a perforated pipe section, a hole pipe (7), a connecting pipe (6) and a three-way pipe (9), and is characterized in that: the utility model discloses a three-way pipe, including three floral tube (1), 2, 3), the mouth of a hole pipe (7) fix in the mouth of a hole department, the floral tube section including link gradually together three floral tube (1, 2, 3), the cover is equipped with can stretch out and draw back and pressure-bearing rubber hose (4) on third floral tube (3), first second floral tube (1, 2) floral tube passes mouth of a hole pipe (7) and stretches into in the drilling, mouth of a hole pipe (7) is passed in third floral tube (3) part, the top of third floral tube (3) is connected with connecting pipe (6) through steel-pipe cover (5), connecting pipe (6) are connected with the output of three-way pipe (9), two inputs of three-way pipe (9) are slip casting pipe (10) and water injection pipe (8) respectively and are connected.
3. The grouting device for automatically sealing and preventing the pipeline of the grouting pump from being blocked according to claim 2, which is characterized in that: the steel pipe sleeve (5) is in threaded connection with the third perforated pipe (3).
4. The grouting device for automatically sealing and preventing the pipeline of the grouting pump from being blocked according to claim 2, which is characterized in that: the three perforated pipes (1, 2 and 3) are sequentially connected together through threads.
5. The grouting device for automatically sealing and preventing the pipeline of the grouting pump from being blocked according to claim 2, which is characterized in that: the rubber hose (4) is fixed outside the third perforated pipe (3) through threaded connection.
6. The grouting device for automatically sealing and preventing the pipeline of the grouting pump from being blocked according to claim 2, which is characterized in that: and a valve B for controlling the output of slurry and a valve A for controlling water injection are arranged on the three-way pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011151982.6A CN112267848B (en) | 2020-10-23 | 2020-10-23 | Grouting method and device capable of automatically sealing holes and preventing grouting pump pipeline from being blocked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011151982.6A CN112267848B (en) | 2020-10-23 | 2020-10-23 | Grouting method and device capable of automatically sealing holes and preventing grouting pump pipeline from being blocked |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112267848A true CN112267848A (en) | 2021-01-26 |
| CN112267848B CN112267848B (en) | 2021-11-09 |
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| CN202011151982.6A Active CN112267848B (en) | 2020-10-23 | 2020-10-23 | Grouting method and device capable of automatically sealing holes and preventing grouting pump pipeline from being blocked |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027484A (en) * | 2021-03-05 | 2021-06-25 | 宁波广安达建筑工程有限公司 | Water-curing grouting waterproof construction equipment and process |
| CN113236336A (en) * | 2021-06-15 | 2021-08-10 | 国能乌海能源五虎山矿业有限责任公司 | Green energy-saving coal seam water injection and grouting cooperative disaster prevention system and method |
| CN117738866A (en) * | 2024-02-06 | 2024-03-22 | 徐州和盛矿业科技有限公司 | Mining grouting pump with stable grouting |
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