CN114412395B - Underground water well-washing sampling equipment - Google Patents

Underground water well-washing sampling equipment Download PDF

Info

Publication number
CN114412395B
CN114412395B CN202210073861.7A CN202210073861A CN114412395B CN 114412395 B CN114412395 B CN 114412395B CN 202210073861 A CN202210073861 A CN 202210073861A CN 114412395 B CN114412395 B CN 114412395B
Authority
CN
China
Prior art keywords
water
stirring piece
stirring
lifting part
lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210073861.7A
Other languages
Chinese (zh)
Other versions
CN114412395A (en
Inventor
张建法
李学锋
刘宇
齐春艳
焦月朋
高明
刘博�
苗润泽
王雨泽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Hongkang Testing Technology Service Co ltd
Original Assignee
Hebei Hongkang Testing Technology Service Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Hongkang Testing Technology Service Co ltd filed Critical Hebei Hongkang Testing Technology Service Co ltd
Priority to CN202210073861.7A priority Critical patent/CN114412395B/en
Publication of CN114412395A publication Critical patent/CN114412395A/en
Application granted granted Critical
Publication of CN114412395B publication Critical patent/CN114412395B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/08Obtaining fluid samples or testing fluids, in boreholes or wells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment

Landscapes

  • 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)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to the technical field of well flushing equipment, and provides underground water well flushing sampling equipment which comprises a flushing pipe, a sewage discharging device and a water supply device, wherein the flushing pipe and the sewage discharging device are arranged on a lifting platform, the water supply device is connected with the flushing pipe, the flushing pipe penetrates through the lifting platform and is further provided with a stirring piece in a rotating mode, the stirring piece is arranged on the lifting platform and is provided with a water through cavity, a plurality of water through holes are formed in the side wall of the stirring piece, the water through holes are communicated with the water through cavity, the flushing pipe is positioned in the water through cavity, and a stirring part is further arranged on the outer wall of the stirring piece. Through above-mentioned technical scheme, solved the problem that current clear water well flushing equipment work efficiency is low among the prior art.

Description

Underground water well-washing sampling equipment
Technical Field
The invention relates to the technical field of well flushing equipment, in particular to underground water well flushing sampling equipment.
Background
The well flushing refers to a process that a well flushing medium is injected by pumping equipment through a shaft or a drill rod to carry substances in the shaft to the ground in the well repairing process due to engineering requirements, so that the property of the medium in the shaft is changed to meet the operation requirement.
The well flushing method comprises the following steps: pumping clear water by an original drilling pump, namely, after the slurry is changed by the clear water, continuously circulating and flushing the well, namely, flushing the well by the clear water; stopping the circulation of clear water, continuously lifting up and down in the well pipe by using a piston to cause pressure agitation, damaging the mud skin of the well wall, dredging the pores of the aquifer, and flushing the well by using the piston; the piston well flushing needs to be alternately and repeatedly performed; before the pumping test, pumping underground water by using a centrifugal pump or a compressed air machine to achieve water cleaning and stable water outlet, and then performing the pumping test, namely pumping flushing and compressed air flushing; in addition, the well is washed by carbon dioxide and acid.
In the process of flushing the well with clean water, the conventional arrangement is that a well flushing pump is connected with an inner pipe, the sludge in the well is flushed with clean water under high pressure, and then the sewage after flushing and mixing is pumped out by a sewage pump.
Disclosure of Invention
The invention provides underground water well washing sampling equipment, which solves the problem of low working efficiency of the existing clear water well washing equipment in the related technology.
The technical scheme of the invention is as follows:
the underground water well-washing sampling equipment comprises a flushing pipe and a sewage discharging device which are arranged on a lifting platform, a water supply device connected with the flushing pipe, a water supply device and a water supply device, wherein the flushing pipe penetrates through the lifting platform,
the stirring piece rotates and sets up on the lift platform, the stirring piece has the water cavity, and has a plurality of water hole on the lateral wall, the water hole with the water cavity intercommunication, wherein, the flushing pipe is located the water cavity, still have stirring portion on the stirring piece outer wall.
As a further technical scheme, the stirring piece passes through the lifting platform to divide the lifting platform into a first lifting part and a second lifting part, a gap is formed between the first lifting part and the second lifting part, the stirring piece is positioned in the gap, the flushing pipe passes through the first lifting part, the second lifting part is provided with an annular slideway, and the stirring device further comprises,
a plurality of connecting pieces which are positioned above the stirring piece and circumferentially distributed around the stirring piece,
the first lifting part is connected to the second lifting part through a plurality of connecting pieces.
As a further technical scheme, the method also comprises the following steps,
at least two brackets are oppositely arranged on the outer wall of the stirring piece,
the stirring piece rotates, and the rollers rotate in the annular slide way.
As a further technical scheme, the connecting piece is U-shaped.
As a further technical scheme, the method also comprises the following steps,
the belt is sleeved on the stirring piece and positioned below the connecting piece and is used for driving the stirring piece to rotate,
and the rotation driving piece is arranged on the first lifting part or the second lifting part and is used for driving the belt to circularly rotate.
As a further technical scheme, the water supply device comprises,
a water tank, a water tank,
a water supply hose connected to the flushing pipe,
the water pump is positioned in the water tank and connected with the water supply hose, and the water pump is used for supplying water into the water supply hose.
As a further technical scheme, the sewage disposal device comprises,
a sewage discharging hose, one end of which is led into the water tank,
the sewage pump is arranged on the first lifting part or the second lifting part and connected with the sewage hose, and the sewage pump is used for discharging sewage outwards.
The working principle and the beneficial effects of the invention are as follows:
in order to solve the problem of low working efficiency of the conventional clean water well washing equipment, the inventor designs equipment for underground water well washing, namely, the sludge in the clean water well is washed by using clean water and then pumped out.
Wherein, stirring piece is whole to be the tube-shape, have helical stirring portion on the lateral wall, inside is the water cavity, then offer the apopore on the lateral wall and open water cavity and outside, stirring piece rotates the central point who installs at elevating platform, elevating platform can be by manpower or electric drive goes up and down, then pass elevating platform's central point and stretch into the water cavity with the wash pipe, also can add the delivery port on the lateral wall of wash pipe, after water supply unit supplies water to the wash pipe in, water can be followed the high-pressure shower nozzle of wash pipe and the delivery port blowout on the lateral wall, and stirring piece can rotate and keep stirring, because by the apopore on the lateral wall of stirring piece, so partial water can be followed the apopore blowout, can keep wasing stirring portion to the stirring piece, can also fully give water and dilute the silt of stirring and mix into muddy water.
In conclusion, the design accelerates the well flushing speed and is more effective for sludge with high hardness and difficult cleaning.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;
FIG. 3 is a schematic perspective view of a stirring element according to one form of the present invention;
FIG. 4 is a schematic perspective view of another form of stirring element according to the present invention;
FIG. 5 is a schematic view of a first lifting portion according to the present invention;
FIG. 6 is a schematic view of a roller in a three-dimensional structure according to the present invention;
fig. 7 is an enlarged view of the part B in fig. 6.
In the figure: 1. lifting platform, 101, first lifting part, 102, second lifting part, 103, annular slideway, 2, wash pipe, 3, stirring piece, 301, water cavity, 302, water hole, 303, stirring part, 4, water supply device, 5, blowdown device, 6, connecting piece, 7, support, 8, gyro wheel, 9, belt, 10, rotation driving piece, 11, basin, 12, water supply hose, 13, water pump, 14, blowdown hose, 15, blowdown pump.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 7, the present embodiment proposes a groundwater flushing sampling device including a flushing pipe 2 and a sewage discharging device 5 provided on a lifting platform 1, and a water supply device 4 connected with the flushing pipe 2, the flushing pipe 2 being provided through the lifting platform 1, further including,
the stirring piece 3 is rotatably arranged on the lifting platform 1, the stirring piece 3 is provided with a water passing cavity 301, the side wall of the stirring piece is provided with a plurality of water passing holes 302, the water passing holes 302 are communicated with the water passing cavity 301, the flushing pipe 2 is positioned in the water passing cavity 301, and the outer wall of the stirring piece 3 is further provided with a stirring part 303.
In this embodiment, in order to solve the problem that the working efficiency of the existing clear water well washing equipment is low, the inventor designs an underground water well washing equipment, uses clear water to wash the sludge in the well and then pumps out, compared with the prior art that the sludge is directly washed by adopting a high-pressure spray nozzle to form muddy water, the underground water well washing equipment is additionally provided with a stirring piece 3, can stir the sludge while washing by using the high-pressure spray nozzle, can effectively stir the sludge to be rotten and mix with clear water, and greatly improves the well washing efficiency.
As shown in fig. 3 and 4, the stirring member 3 may be configured as a whole in a cylindrical shape, or may be configured as a frustum shape, the outer side wall has a spiral stirring portion 303, the inside is a water through cavity 301, then a water through hole 302 is formed in the outer side wall to open the water through cavity 301 and the outside, the stirring member 3 is rotatably mounted at the central position of the lifting platform 1, the lifting platform 1 can be lifted by manpower or electric driving, then the flushing pipe 2 passes through the central position of the lifting platform 1 and stretches into the water through cavity 301, a water outlet may be additionally formed in the side wall of the flushing pipe 2, when the water supply device 4 supplies water into the flushing pipe 2, water is sprayed out from a high-pressure spray head of the flushing pipe 2 and the water outlet in the side wall, and the stirring member 3 rotates to stir continuously, and as part of the water is sprayed out from the water through hole 302, the stirring portion 303 of the stirring member 3 can be continuously cleaned, and the stirred sludge can be diluted and mixed into muddy water by sufficient water.
In conclusion, the design accelerates the well flushing speed and is more effective for sludge with high hardness and difficult cleaning.
Further, the stirring member 3 passes through the elevating platform 1 to divide the elevating platform 1 into a first elevating portion 101 and a second elevating portion 102, a gap is formed between the first elevating portion 101 and the second elevating portion 102, the stirring member 3 is positioned in the gap, the flushing pipe 2 passes through the first elevating portion 101, the second elevating portion 102 has an annular slide 103, further comprising,
a plurality of connecting pieces 6 which are positioned above the stirring piece 3 and distributed circumferentially around the stirring piece 3,
wherein the first lifting part 101 is connected to the second lifting part 102 by a plurality of connecting pieces 6.
Further, the method also comprises the steps of,
at least two brackets 7 are oppositely arranged on the outer wall of the stirring piece 3,
at least two rollers 8 are arranged, each bracket 7 is provided with one roller 8, and after the stirring piece 3 rotates, the rollers 8 rotate in the annular slide way 103.
As shown in fig. 3 to 7, in this embodiment, in order to enable the stirring member 3 to be smoothly rotatably mounted on the lifting platform 1, the inventor divides the lifting platform 1 into two parts, namely, a first lifting portion 101 and a second lifting portion 102, wherein the lifting platform 1 may adopt a cylindrical plate, namely, the first lifting portion 101 and the second lifting portion 102 are also cylindrical, the first lifting portion 101 and the second lifting portion are fixedly connected by the connecting member 6, the connecting member 6 is located above the stirring member 3, the stirring member 3 is mounted in an annular region of the first lifting portion 101 and the second lifting portion 102, namely, the first lifting portion 101 is located inside the stirring member 3, then an annular groove is formed on an inner side wall of the second lifting portion 102 located outside the stirring member 3, and an annular slide 103 is formed in the annular groove, and the roller 8 is designed to roll in the annular slide 103, and then the roller 8 is connected to the side wall of the stirring member 3 by the bracket 7, so that when the stirring member 3 rotates, the bracket 7 can play a supporting role in supporting the stirring member 3, and the roller 8 can roll in the annular slide way in the annular slide 3, and the stirring member 3 can be freely rotated.
Further, the connecting piece 6 is U-shaped.
Further, the method also comprises the steps of,
a belt 9 sleeved on the stirring piece 3 and positioned below the connecting piece 6 for driving the stirring piece 3 to rotate,
the rotation driving member 10 is disposed on the first lifting portion 101 or the second lifting portion 102, and is used for driving the belt 9 to rotate in a circulating manner.
As shown in fig. 3 and 4, in the present embodiment, the inventor installs a rotation driving member 10 and a belt 9 on the elevating platform 1 for driving the stirring element 3 to rotate. The connecting piece 6 is designed into a U shape, so that the belt 9 can pass through the U-shaped hole of the connecting piece 6, and the integral rotation is not influenced.
Further, the water supply device 4 includes,
the water tank 11 is provided with a water channel,
a water supply hose 12 connected to the flushing pipe 2,
a water pump 13 is located in the water tank 11 and connected to the water supply hose 12, and the water pump 13 is used for supplying water into the water supply hose 12.
Further, the sewage disposal device 5 comprises,
a sewage hose 14, one end of which is connected into the water tank 11,
the sewage pump 15 is disposed on the first lifting portion 101 or the second lifting portion 102, is connected to the sewage hose 14, and the sewage pump 15 is used for discharging sewage outwards.
As shown in fig. 1 and 2, in this embodiment, the inventor designs a water tank 11, a water supply hose 12 and a water pump 13 for continuously supplying water to the flushing pipe 2, and designs a sewage discharge hose 14 and a sewage discharge pump 15 for discharging sewage, and in addition, the water tank 11 may be designed in plurality, and sewage may be discharged into one of the water tanks 11 for recycling after sedimentation and filtration.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (6)

1. The underground water well-washing sampling equipment comprises a flushing pipe (2) and a sewage discharging device (5) which are arranged on a lifting platform (1), and a water supply device (4) connected with the flushing pipe (2), and is characterized in that the flushing pipe (2) is arranged through the lifting platform (1), and further comprises,
the stirring piece (3) is rotationally arranged on the lifting platform (1), the stirring piece (3) is provided with a water through cavity (301), the side wall of the stirring piece is provided with a plurality of water through holes (302), the water through holes (302) are communicated with the water through cavity (301), the flushing pipe (2) is positioned in the water through cavity (301), and the outer wall of the stirring piece (3) is also provided with a stirring part (303); the stirring piece (3) penetrates through the lifting platform (1) to divide the lifting platform (1) into a first lifting part (101) and a second lifting part (102), a gap is formed between the first lifting part (101) and the second lifting part (102), the stirring piece (3) is positioned in the gap, the flushing pipe (2) penetrates through the first lifting part (101), the second lifting part (102) is provided with an annular slideway (103), and the stirring device further comprises,
a plurality of connecting pieces (6) which are positioned above the stirring piece (3) and are circumferentially distributed around the stirring piece (3),
wherein the first lifting part (101) is connected to the second lifting part (102) through a plurality of connecting pieces (6).
2. The apparatus of claim 1, further comprising,
at least two brackets (7) are oppositely arranged on the outer wall of the stirring piece (3),
the stirring device comprises at least two rollers (8), wherein each bracket (7) is provided with one roller (8), and after the stirring piece (3) rotates, the rollers (8) rotate in the annular slide way (103).
3. A groundwater well sampling device according to claim 2, characterized in that the connection (6) is U-shaped.
4. A groundwater well-flushing sampling device according to claim 3, further comprising,
a belt (9) sleeved on the stirring piece (3) and positioned below the connecting piece (6) for driving the stirring piece (3) to rotate,
and the rotation driving piece (10) is arranged on the first lifting part (101) or the second lifting part (102) and is used for driving the belt (9) to rotate circularly.
5. An underground water logging sampling device according to claim 4, wherein said water supply means (4) comprises,
a water tank (11),
a water supply hose (12) connected to the flushing pipe (2),
and a water pump (13) positioned in the water tank (11) and connected with the water supply hose (12), wherein the water pump (13) is used for supplying water into the water supply hose (12).
6. An underground water logging sampling device according to claim 5, wherein the drain (5) comprises,
a sewage discharging hose (14), one end of which is communicated with the water tank (11),
the sewage pump (15) is arranged on the first lifting part (101) or the second lifting part (102) and is connected with the sewage hose (14), and the sewage pump (15) is used for discharging sewage outwards.
CN202210073861.7A 2022-01-21 2022-01-21 Underground water well-washing sampling equipment Active CN114412395B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210073861.7A CN114412395B (en) 2022-01-21 2022-01-21 Underground water well-washing sampling equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210073861.7A CN114412395B (en) 2022-01-21 2022-01-21 Underground water well-washing sampling equipment

Publications (2)

Publication Number Publication Date
CN114412395A CN114412395A (en) 2022-04-29
CN114412395B true CN114412395B (en) 2023-11-14

Family

ID=81275104

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210073861.7A Active CN114412395B (en) 2022-01-21 2022-01-21 Underground water well-washing sampling equipment

Country Status (1)

Country Link
CN (1) CN114412395B (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1682471A1 (en) * 1989-08-22 1991-10-07 Всесоюзный Научно-Исследовательский Институт Горной Механики Им.М.М.Федорова Method for cleaning receiving wells of mine water pumping plant
CN104653131A (en) * 2015-03-11 2015-05-27 四川恒溢石油技术服务有限公司 Novel well flushing truck and use method thereof
CN105421579A (en) * 2015-12-19 2016-03-23 冯振鹏 Sewage well sludge sand stone cleaning device convenient to clean
CN107939317A (en) * 2017-11-27 2018-04-20 山东省邱集煤矿 Hydrology hole hole cleaning device and application method
CN207436967U (en) * 2017-11-28 2018-06-01 陕西晟大钻探科技有限公司 Double direction clean-out rig of oil/water well
CN109827809A (en) * 2019-01-24 2019-05-31 广西壮族自治区环境监测中心站 A kind of dedicated well-flushing sampling pump of Novel underground monitoring water environment well
CN209654034U (en) * 2019-01-26 2019-11-19 杭州中一检测研究院有限公司 A kind of well-flushing sampler of sampled well
CN210033335U (en) * 2019-02-19 2020-02-07 中铁北京工程局集团城市轨道交通工程有限公司 Clear hole device of subway pile base
CN211474058U (en) * 2020-01-21 2020-09-11 中国二十二冶集团有限公司 Well washing device
CN212104275U (en) * 2020-03-30 2020-12-08 福建省新华都工程有限责任公司 Blast hole dredging device
CN212337234U (en) * 2020-05-26 2021-01-12 中交(广州)建设有限公司 Well washing device for subway deep foundation pit dewatering well

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002012637A1 (en) * 2000-08-02 2002-02-14 Nishimatsu Construction Co., Ltd. Underground water pumping device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1682471A1 (en) * 1989-08-22 1991-10-07 Всесоюзный Научно-Исследовательский Институт Горной Механики Им.М.М.Федорова Method for cleaning receiving wells of mine water pumping plant
CN104653131A (en) * 2015-03-11 2015-05-27 四川恒溢石油技术服务有限公司 Novel well flushing truck and use method thereof
CN105421579A (en) * 2015-12-19 2016-03-23 冯振鹏 Sewage well sludge sand stone cleaning device convenient to clean
CN107939317A (en) * 2017-11-27 2018-04-20 山东省邱集煤矿 Hydrology hole hole cleaning device and application method
CN207436967U (en) * 2017-11-28 2018-06-01 陕西晟大钻探科技有限公司 Double direction clean-out rig of oil/water well
CN109827809A (en) * 2019-01-24 2019-05-31 广西壮族自治区环境监测中心站 A kind of dedicated well-flushing sampling pump of Novel underground monitoring water environment well
CN209654034U (en) * 2019-01-26 2019-11-19 杭州中一检测研究院有限公司 A kind of well-flushing sampler of sampled well
CN210033335U (en) * 2019-02-19 2020-02-07 中铁北京工程局集团城市轨道交通工程有限公司 Clear hole device of subway pile base
CN211474058U (en) * 2020-01-21 2020-09-11 中国二十二冶集团有限公司 Well washing device
CN212104275U (en) * 2020-03-30 2020-12-08 福建省新华都工程有限责任公司 Blast hole dredging device
CN212337234U (en) * 2020-05-26 2021-01-12 中交(广州)建设有限公司 Well washing device for subway deep foundation pit dewatering well

Also Published As

Publication number Publication date
CN114412395A (en) 2022-04-29

Similar Documents

Publication Publication Date Title
JP2020203469A (en) Automatically washable concrete stirring device
CN218486855U (en) Soil pollution restores medicament normal position injection device
CN114412395B (en) Underground water well-washing sampling equipment
CN208494547U (en) A kind of pressure break quartz sand washing and drying device
CN107326954B (en) Silt cleaning device
CN212003125U (en) Device for cleaning sludge in pile core of PHC prefabricated pipe pile
CN211200516U (en) Environment-friendly hydraulic engineering desilting device
CN112644431A (en) Car chassis flushing device for automobile beauty
KR100835138B1 (en) Cleaning device for natural water system
CN116425302A (en) Aeration device for sewage treatment
CN207315305U (en) A kind of well washing apparatus of cannula cleaning inner wall
CN216659838U (en) Scraped car detaching device
CN112943128B (en) Drilling breast wall slurry circulating device and method for engineering investigation of underground water rich areas
CN110976508B (en) Method for soil remediation by using chemical reagent liquid
CN211621924U (en) Novel sump pit clearance silt device
CN210216552U (en) A rubbish silt clearance mechanism for river regulation
CN208594947U (en) Pipe jacking tunnelling machine is into mud discharging device
US3729054A (en) Rejuvenation of wells and other ground-water collecting devices
CN216323916U (en) Sludge removing device in municipal water supply pipeline
CN220365541U (en) Well-flushing device for ground gas drilling
CN215480467U (en) Sludge concentration device with high-pressure flushing function
CN217377545U (en) Subway precipitation well water reuse device
CN214052831U (en) Ore cleaning equipment
CN214574566U (en) Urban rainwater well dredging device
CN220804621U (en) Double-station cylinder cover cleaning box

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant