CN112814566A - Circulating water drilling process and system for underground directional drilling machine - Google Patents
Circulating water drilling process and system for underground directional drilling machine Download PDFInfo
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- CN112814566A CN112814566A CN202110098495.6A CN202110098495A CN112814566A CN 112814566 A CN112814566 A CN 112814566A CN 202110098495 A CN202110098495 A CN 202110098495A CN 112814566 A CN112814566 A CN 112814566A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 221
- 238000005553 drilling Methods 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000919 ceramic Substances 0.000 claims abstract description 65
- 239000012528 membrane Substances 0.000 claims abstract description 64
- 239000003245 coal Substances 0.000 claims abstract description 31
- 239000010865 sewage Substances 0.000 claims abstract description 21
- 238000011001 backwashing Methods 0.000 claims description 6
- 239000003250 coal slurry Substances 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 3
- 208000005156 Dehydration Diseases 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 9
- 238000004140 cleaning Methods 0.000 abstract description 8
- 238000005065 mining Methods 0.000 abstract description 8
- 238000000746 purification Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 description 17
- 239000002245 particle Substances 0.000 description 7
- 239000008235 industrial water Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
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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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
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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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本申请公开了一种井下定向钻机循环水打钻工艺及系统，涉及采矿领域。系统由清水箱、污水箱、收集泵、陶瓷膜及脱水筛，形成了一套以陶瓷膜净化装置为核心的局部水处理系统，可实现钻机施工生产用水的重复利用，并确保生产用水水质清洁。本申请无需长距离安装供水管和排水管，故而节省了长距离安装供水管和排水管产生的大量费用，解决了千米钻孔施工过程中的供水难、排水难、煤泥清理难的问题。
The application discloses a circulating water drilling process and system for an underground directional drilling rig, and relates to the field of mining. The system consists of clean water tank, sewage tank, collection pump, ceramic membrane and dewatering screen, forming a set of local water treatment system with ceramic membrane purification device as the core, which can realize the reuse of production water for drilling rig construction and ensure the clean water quality of production water. . The application does not require long-distance installation of water supply pipes and drainage pipes, thus saving a lot of costs incurred by long-distance installation of water supply pipes and drainage pipes, and solving the problems of difficult water supply, difficult drainage, and difficulty in cleaning coal slime during the construction of 1,000-meter drilling. .
Description
Technical Field
The application relates to the field of mining, in particular to a circulating water drilling process and system for an underground directional drilling machine.
Background
For the domestic current high-gas and high-outburst mines, in order to improve the gas drainage efficiency and drainage effect and ensure the safe and efficient production of coal mines, directional drilling is the most effective method, and drilling machines used for directional drilling construction have large water consumption and generate much coal slime, so that the drilling construction cost is very high. The water supply mode of present rig: pipeline water supply, sewage collection, sewage treatment on the well, and reuse of the treated industrial water.
As shown in figure 2, a water supply system of pure water for coal mine production supplies water for the first drilling machine to the eighth drilling machine 01-08. The water supply system comprises a ground static pressure water tank 100, a disc water sump 200, a central water sump 300, a ground industrial water plant 400, a water supply pipeline 101 and a water drainage pipeline 102. The system utilizes DN250 water supply pipelines of a main shaft bore and a main track main roadway to supply water to panel roadway ports, namely a 1# mining area, a 2# mining area and a 5# mining area, then DN200 water supply pipelines arranged on the panel roadways supply main roadways of the mining areas, DN150 is arranged in the main roadways of the mining areas, and then the water is distributed to the roadways of the mining areas through tee joints arranged in the pipelines to provide production water for drilling machines, namely a first drilling machine to an eighth drilling machine 01-08. After used by the drilling machine, sewage is collected to the panel water sump 200 through a drainage pipeline 102 arranged in a roadway, is discharged to a central water sump 300 underground by a pump, and is discharged to a ground industrial water plant 400 by a main drainage pump and a main drainage pipeline of DN250 for treatment. The purified water after treatment is supplied to a ground static pressure water pool 100 of a wellhead by a pump, and then is supplied to the ground by a DN250 pipeline of a main shaft, and the process is repeated in this way, so that the circulating water supply is realized. Along with the continuous branch of the roadway, the pipe diameters of the water supply and the water discharge are gradually reduced.
The above water supply system has the following disadvantages:
1. the circulating water consumption of the drilling machine is large during drilling construction. The water supply pipeline 101 and the water discharge pipeline 102 need to be installed in a long distance, the pipeline cost is about 30 ten thousand yuan/kilometer, and some remote pipelines need to be installed with water supply pipelines more than 10 kilometers, so the cost is higher.
2. The sewage that the construction drilling produced contains the coal slime many, and the granule is slight, and the coal slime clearance difficulty causes each sump along subsequent line and needs frequent clear storehouse, and the clear storehouse degree of difficulty is very high, and the coal slime dries the time very long, occupies a large amount of idle roadways. The warehouse cleaning cost is very high, and under the condition that the warehouse cleaning plate does not contain outsourced engineering and personnel in units, the warehouse cleaning cost of the warehouse cleaning plate area is about 5 ten thousand yuan/unit, and the warehouse cleaning cost of the central water sump is about 15 ten thousand yuan/unit. Approximately 650 ten thousand yuan/year throughout the year.
3. Industrial water treatment costs about 3.8 yuan/cubic meter and water treatment costs of about 50 ten thousand yuan/year per rig.
4. In addition, a transfer water pump room with pipeline installation, warehouse cleaning, water treatment and transfer supply links needs to invest a large amount of labor cost.
5. The pure water and the sewage in the existing pipeline water supply mode are supplied for at least 5 times in total, the electric quantity consumed by the water pump per year is about 600 ten thousand KW/year, and the electricity cost is 450 ten thousand yuan/year.
In conclusion, the large circulation pipeline water supply mode adopted by the prior art not only needs to consume a large amount of energy, and has high economic cost and labor cost investment, but also has three difficult problems of difficult water supply, difficult water drainage and difficult coal slime cleaning in the directional drilling construction process.
Disclosure of Invention
It is an object of the present application to overcome the above problems or to at least partially solve or mitigate the above problems.
According to one aspect of the present application, there is provided a circulating water drilling system for a downhole directional drilling machine for supplying water to the drilling machine, comprising: connected by pipes
The clear water tank is connected with an external clear water pipeline and used for storing clear water, and is also connected with the drilling machine and used for supplying clear water to the drilling machine;
the sewage tank is connected with a drain pipe of the drilling machine and used for receiving slime water generated in the working process of the drilling machine;
the collecting pump is connected with the sewage tank and used for pumping the slime water;
the ceramic membrane is provided with an inlet, a clear water outlet and a slime water outlet, the inlet is connected with the collecting pump, the clear water outlet is connected with the clear water tank, the ceramic membrane is used for filtering the slime water, the clear water filtered by the ceramic membrane is input into the clear water tank through a pipeline, and the slime water filtered by the ceramic membrane is discharged through the slime water outlet; and
the dewatering screen, with the coal slime water outlet of ceramic membrane links to each other, the coal slime water after filtering passes through the dewatering screen dehydration, the warp the normal water that the dewatering screen is deviate from is connected to the entry of ceramic membrane by the pipeline the dry coal slime on the dewatering screen is pulled away by main conveying system.
Optionally, a back-flushing device is installed at the ceramic membrane to realize regular back-flushing of the ceramic membrane, and high-concentration coal slime after flushing is discharged into the dewatering screen for dewatering.
Optionally, the dewatering screen is a vibrating dewatering screen.
Optionally, the circulating water drilling system of the downhole directional drilling machine further comprises a water tank for accommodating the ceramic membrane.
Optionally, the circulating water drilling system of the downhole directional drilling machine further comprises a water tank for accommodating the ceramic membrane.
According to another aspect of the application, a circulating water drilling process of the underground directional drilling machine, which is applied to the circulating water drilling system of the underground directional drilling machine, is provided, and comprises the following steps:
and 400, dehydrating the filtered slime water, returning the dehydrated reclaimed water to the step 300, filtering by using a ceramic membrane, and conveying the dry slime left after dehydrating the filtered slime water.
Optionally, the step 300 is followed by a ceramic membrane backwashing step for washing the ceramic membrane, and dewatering the washed high-concentration coal slurry.
The utility model provides a technology and system are drilled to directional rig circulating water in pit, the system of this application has formed one set and has used ceramic membrane purifier as the local water processing system of core through the clear water case, sewage case, collection pump, ceramic membrane and the dewatering screen of tube coupling, can realize the reuse of rig construction process water to ensure process water quality clean. This application need not long distance installation delivery pipe and drain pipe, so saved a large amount of expenses that long distance installation delivery pipe and drain pipe produced, solved the difficult problem of water supply, drainage difficulty, coal slime clearance in the kilometer drilling work progress.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic block diagram of a downhole directional drilling machine circulating water drilling process and system according to one embodiment of the present application;
fig. 2 is a schematic configuration diagram of a water supply system for purified water for coal mine production in the prior art.
The symbols in FIG. 1 represent the following meanings:
10 clean water tank, 20 drilling machine, 30 sewage tank, 40 collecting pump, 50 ceramic membrane, 51 inlet, 52 slime water outlet, 53 clean water outlet, 60 dewatering screen.
The symbols in fig. 2 represent the following meanings:
01-08 show the first to eighth drilling machines, the ground hydrostatic water tank 100, the panel water sump 200, the central water sump 300, the ground industrial water plant 400, the water supply line 101, and the water discharge line 102.
Detailed Description
The inventor carries out research to the actual conditions that the water consumption is large and the coal slime amount is large in the drilling construction operation process and finds that: 1) because the kilometer drilling machine does not consume water and does not produce water, the most economical and feasible means for solving the problem of large amount of water consumption and water drainage of the kilometer drilling machine is a local water treatment system. This can avoid a large cost for installing the water supply pipe and the water discharge pipe over a long distance. 2) Regarding the selection of the filtering means. The coal slurry produced in the drilling construction process is mainly produced by grinding coal bodies and rock masses through a drill rod, and fine-particle powder particles are fine and are easily argillized and suspended in water and are mixed with punching water into a whole, so that great difficulty is caused for subsequent solid-liquid separation. It takes a long time for the chemical agent to act. The action of the flocculating agent and the flocculating agent aiming at the fine particle precipitation needs a long time, the material sedimentation also needs a long time, and the dehydration of the jelly after the sedimentation is more difficult. Therefore, only a physical filtering means can be adopted, the used filtering equipment can filter ultrafine particles (smaller than 200 meshes), and has a back washing function without blocking holes, so that the ceramic membrane filtering is the best available equipment, and the ceramic membrane is reliable fine particle sewage filtering equipment, so that the water quality after filtering meets the drilling construction requirements and can be recycled. The present application was developed on this basis:
FIG. 1 is a schematic block diagram of a downhole directional drilling machine circulating water drilling process and system according to one embodiment of the present application. A circulating water drilling system for a downhole directional drilling machine for supplying water to a drilling machine 20 may generally comprise: a clean water tank 10, a sewage tank 30, a collection pump 40, a ceramic membrane 50 and a dewatering screen 60 which are connected through pipelines. The clean water tank 10 is connected to an external clean water pipe for storing clean water and also to the drilling rig 20 for supplying clean water to the drilling rig 20. The sewage tank 30 is connected to a drain pipe of the drilling machine 20, and is configured to receive slime water generated during the operation of the drilling machine 20. A collection pump 40 is connected to the sump tank 30 for pumping the slurry water to the ceramic membrane 50. The ceramic membrane 50 has an inlet 51, a clean water outlet 53, and a slurry water outlet 52. An inlet 51 is connected to the collection pump 40 to receive the slurry water pumped by the collection pump 40. The clean water outlet 53 is connected to the clean water tank 10. The ceramic membrane 50 is used for filtering the coal slime water, clear water filtered by the ceramic membrane 50 is input into the clear water tank 10 through a pipeline, and the coal slime water filtered by the ceramic membrane 50 is discharged through the coal slime water outlet 52. Dewatering screen 60 with ceramic membrane 50's coal slime water outlet 52 links to each other, the coal slime water after the filtration passes through dewatering screen 60 dewaters, the warp the normal water that dewatering screen 60 is deviate from is connected to ceramic membrane 50's entry 51 by the pipeline, the warp coal slime water after dewatering screen 60 dewaters is dry coal slime and stays on dewatering screen 60 dry coal slime on the dewatering screen 60 is pulled away by the main transport system.
The utility model provides a system is drilled to directional rig 20 circulating water in pit:
clean water firstly enters the clean water tank 10 and then is supplied to the kilometer drilling machine 20, slime water generated by the kilometer drilling machine 20 is collected in the sewage tank 30, the slime water is pumped into the ceramic membrane 50 by the collecting pump 40 for filtration, and the filtered clean water is pumped into the clean water tank 10. The filtered slime water is discharged to the dewatering screen 60. The filtered coal slurry water is dehydrated through the dewatering screen 60, the dry coal slurry on the dewatering screen 60 is pulled away by the main conveying system, the middle water under the dewatering screen 60 is pumped back to the ceramic membrane 50 for filtration again, and the circulation system is formed in such a way that the steps are repeated.
The circulating water drilling system of the underground directional drilling machine forms a set of local water treatment system taking the ceramic membrane 50 purification device as a core through the clean water tank 10, the sewage tank 30, the collection pump 40, the ceramic membrane 50 and the dewatering screen 60, can realize the reutilization of the production water for the construction of the drilling machine 20, and ensures the clean water quality of the production water. This application need not long distance installation delivery pipe and drain pipe, so saved a large amount of expenses that long distance installation delivery pipe and drain pipe produced, solved the difficult problem of water supply, drainage difficulty, coal slime clearance in the kilometer drilling work progress.
Further, a back-flushing device is installed at the ceramic membrane 50 to realize regular back-flushing of the ceramic membrane 50, so that particles attached to the ceramic membrane 50 are flushed and discharged, and the ceramic membrane 50 is ensured to work continuously without being blocked. And discharging the washed high-concentration coal slime into the dewatering screen 60 for dewatering.
In particular, the dewatering screen 60 is a vibrating dewatering screen. Further, the dewatering screen 60 is a high frequency vibrating dewatering screen. More specifically, according to the result of analyzing the particle size of the sewage generated by the drilling construction, the mesh size of the high-frequency vibration sieve is small enough to remove solid particles in the sewage as much as possible. At least 50% of the ceramic membrane is required to be removed, so as to ensure the treatment effect of the ceramic membrane 50 in the subsequent link. The water content of the material after dehydration by the high-frequency vibrating screen is not more than 20 percent, and the material can be directly transported away by a coal flow system.
The working characteristics of the high-frequency vibration dewatering screen and the ceramic membrane 50 are fully researched, the particle size composition and the characteristic analysis are carried out on the sewage generated in the drilling construction process, a reasonable local circulating water treatment process is designed in a targeted mode, and the local circulating utilization of water for drilling construction is achieved.
Further, the circulating water drilling system of the downhole directional drilling machine may further include a water tank for accommodating the ceramic membrane 50.
Further, the circulating water drilling system of the downhole directional drilling machine may further include a water tank for accommodating the ceramic membrane 50.
The technical requirements of the circulating water drilling system of the underground directional drilling machine are as follows:
1. ceramic membrane 50 water purification device:
2. the filtration precision is 0.1 um.
3. The equipment meets the industrial standard of industrial water treatment.
4. The ceramic membrane 50 has a back-washing function, and the operation of the ceramic membrane 50 filtering device is not influenced by blockage.
5. The water content of the solid particles after dehydration by the dewatering screen 60 is not more than 20 percent, and the solid particles can be directly transported away along with the main transportation system.
6. The whole system meets industrial operation conditions and can be circulated reliably.
Referring to fig. 1, the present application further provides a circulating water drilling process of an underground directional drilling machine, which is applied to the circulating water drilling system of the underground directional drilling machine, and the process comprises the following steps:
and 400, dehydrating the filtered slime water, returning the dehydrated reclaimed water to the step 300, filtering by the ceramic membrane 50, and conveying the dry slime left after the slime water is dehydrated.
Further, the step 300 is followed by a ceramic membrane 50 backwashing step for washing the ceramic membrane 50, and dewatering the washed high-concentration coal slurry.
The circulating water drilling process of the underground directional drilling machine is applied to the system, wherein the system forms a set of local water treatment system taking a ceramic membrane 50 purification device as a core through a clean water tank 10, a sewage tank 30, a collection pump 40, a ceramic membrane 50 and a dewatering screen 60, the reuse of the drilling machine construction production water can be realized, and the cleanness of the production water quality is ensured. This application need not long distance installation delivery pipe and drain pipe, so saved a large amount of expenses that long distance installation delivery pipe and drain pipe produced, solved the difficult problem of water supply, drainage difficulty, coal slime clearance in the kilometer drilling work progress.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
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| CN202110098495.6A CN112814566A (en) | 2021-01-25 | 2021-01-25 | Circulating water drilling process and system for underground directional drilling machine |
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| CN103011444A (en) * | 2012-10-30 | 2013-04-03 | 北京中矿艾可沃特科技有限公司 | Under-shaft drilling water treatment device |
| CN205206763U (en) * | 2015-12-08 | 2016-05-04 | 刘国琛 | Air -operated controller colliery is directional rig water cyclic utilization equipment system in pit |
| CN205500858U (en) * | 2016-01-13 | 2016-08-24 | 烟台海德专用汽车有限公司 | Sewage filtration system with horizontal ceramic membrane filter |
| CN108503148A (en) * | 2018-05-18 | 2018-09-07 | 河南锦源环保科技有限公司 | A kind of New Coal Mine mine water Integrated Processing Unit |
| CN111732216A (en) * | 2020-07-27 | 2020-10-02 | 山西思檀鼎业生物工程有限公司 | Coal mine wastewater recycling system |
| CN214886834U (en) * | 2021-01-25 | 2021-11-26 | 范绍军 | Circulating water drilling system of underground directional drilling machine |
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