CN112759109A - Sedimentation tank structure for river sewage treatment - Google Patents

Sedimentation tank structure for river sewage treatment Download PDF

Info

Publication number
CN112759109A
CN112759109A CN201911059522.8A CN201911059522A CN112759109A CN 112759109 A CN112759109 A CN 112759109A CN 201911059522 A CN201911059522 A CN 201911059522A CN 112759109 A CN112759109 A CN 112759109A
Authority
CN
China
Prior art keywords
sedimentation tank
bevel gear
sleeved
rod
bottom plate
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.)
Withdrawn
Application number
CN201911059522.8A
Other languages
Chinese (zh)
Inventor
不公告发明人
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.)
Jiangsu Zhonglin Film Technology Co ltd
Original Assignee
Jiangsu Zhonglin Film Technology 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 Jiangsu Zhonglin Film Technology Co ltd filed Critical Jiangsu Zhonglin Film Technology Co ltd
Priority to CN201911059522.8A priority Critical patent/CN112759109A/en
Publication of CN112759109A publication Critical patent/CN112759109A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281Installations for water purification using chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/002Construction details of the apparatus
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/14Maintenance of water treatment installations

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention discloses a sedimentation tank structure for river sewage treatment, which comprises a sedimentation tank, a lifting assembly, a partition plate, a rubber pad, a water inlet pipe, a water outlet pipe, a carbon rod and an activated carbon layer, wherein two sides of the top of the sedimentation tank are respectively fixed with a bottom plate through screws, one side of the top of the bottom plate is fixed with a baffle plate through screws, one end of the baffle plate is fixed with a three-phase motor through screws, the three-phase motor is positioned at the top of the bottom plate, one end of the three-phase motor is provided with a rotating shaft, one end of the rotating shaft is sleeved with a first bevel gear, the other end of the bottom plate is provided with a lifting hole, the inside of the lifting hole is sleeved with a threaded rod, the top of the threaded rod is sleeved with a second bevel gear, the sedimentation tank structure for river sewage treatment is simple, the use is convenient and the convenient and fast operation, the sedimentation tank, protects the environment and is beneficial to saving resources.

Description

Sedimentation tank structure for river sewage treatment
Technical Field
The invention relates to the technical field of sedimentation tanks, in particular to a sedimentation tank structure for river sewage treatment.
Background
The sedimentation tank is a structure for removing suspended matters in water by using sedimentation, and is equipment for purifying water quality, and the suspended matters in water are removed by using the natural sedimentation or coagulating sedimentation of water.
Need artifical the inside clearance sedimentation tank that gets into the sedimentation tank after traditional sedimentation tank sewage deposits the completion, artifical clearance causes the clearance unclean easily, pollute going on of next sediment sewage work, artifical clearance inefficiency simultaneously, the waste time, be unfavorable for quick sediment sewage to go on, and traditional sedimentation tank sewage deposits unclean, sewage deposits back direct discharge, the sewage after the sediment still contains a large amount of impurity, directly discharge sewage ecological environment, be unfavorable for resources are saved simultaneously, to these defects, it is very necessary to design a sedimentation tank structure for river course sewage treatment.
Disclosure of Invention
The invention aims to provide a sedimentation tank structure for river sewage treatment, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a sedimentation tank structure for river sewage treatment comprises a sedimentation tank, a lifting assembly, a partition plate, a rubber pad, a water inlet pipe, a metal net, a water outlet pipe, a filter gauze, PP cotton, a carbon rod and an activated carbon layer, wherein the lifting assembly is arranged on two sides of the top of the sedimentation tank, the lifting assembly comprises a threaded rod, a first bevel gear, a rotating shaft, a three-phase motor, a baffle, a bottom plate, a second bevel gear, a first supporting rod, a threaded groove, a ball, an L-shaped connecting plate, a second supporting rod, a lifting hole and a ball groove, the two sides of the top of the sedimentation tank are respectively fixed with the bottom plate through screws, one side of the top of the bottom plate is fixed with the baffle through screws, one end of the baffle is fixed with a three-phase motor through screws, the three-phase motor is positioned at the top of the bottom plate, one end of the rotating shaft is, the lifting device is characterized in that a threaded rod is sleeved inside the lifting hole, a second bevel gear is sleeved at the top of the threaded rod, one end of the second bevel gear is meshed with the first bevel gear, a threaded groove is formed in the center of the second bevel gear and sleeved outside the threaded rod, a plurality of second support rods are fixed at the top of the other end of the bottom plate through screws and located on two sides of the lifting hole, an L-shaped connecting plate is fixed at one end of each second support rod through screws, a first support rod is fixed at one end of the L-shaped connecting plate through screws, balls are arranged at the bottom of each first support rod and the top of each second support rod, one end of each ball is attached to the second bevel gear, a partition plate is arranged at the bottom of the threaded rod and attached to the inner wall of the sedimentation tank, a water inlet pipe is arranged at one end, the utility model discloses a carbon rod, including outlet pipe, filter gauze, carbon rod, activated carbon layer, metal mesh, outlet pipe inner wall laminating, the cotton of PP has cup jointed to outlet pipe one end center department, the cotton one end of PP has cup jointed and has filtered the gauze, the cotton other end of PP has cup jointed the carbon rod, activated carbon layer has been cup jointed to carbon rod one end, filter gauze and the activated carbon layer outside all cup jointed the metal mesh, and metal mesh and outlet pipe inner wall laminating.
Furthermore, a water inlet hole is formed in the center of one end of the sedimentation tank, and a water inlet pipe is sleeved inside the water inlet.
Furthermore, a water outlet is formed in the center of the other end of the sedimentation tank, and a water outlet pipe is sleeved inside the water outlet.
Furthermore, a ball groove is formed in the top of the second support rod, and the ball groove is sleeved on the outer side of the ball.
Furthermore, a rubber pad is sleeved on the outer side of the partition plate, and the outer side of the rubber pad is attached to the inner wall of the sedimentation tank.
Compared with the prior art, the invention has the following beneficial effects: the sedimentation tank for river sewage treatment is simple in structure and convenient to use, the water inlet pipe is manually opened to enable sewage to enter the sedimentation tank, a chemical mixing agent for precipitating impurities is added, the impurities drop in the sedimentation tank after being precipitated, the water outlet pipe is opened, water flows into the water outlet pipe, the three-phase motor is opened at the moment, the three-phase motor rotates to drive the first bevel gear to rotate, the impurities filtered and accumulated in the sedimentation tank are upwards brought to the top of the sedimentation tank by the partition plate, the impurities can be cleaned at the moment, the three-phase motor is started after the cleaning is completed, the first bevel gear rotates anticlockwise, the partition plate is placed in the sedimentation tank again to be cleaned again, the impurities are filtered by utilizing the sedimentation tank to precipitate and filter gauze, PP cotton, the carbon rods and the activated carbon layer, the impurities are accumulated at the bottom of the sedimentation tank, the partition plate is driven to ascend by utilizing the rotation of the three-phase motor, the partition plate is used for taking out the impurities accumulated at the, more convenient and fast, and conveniently clear up the sedimentation tank, need not manual operation, save time and manpower more, filter large granule impurity through filtering the gauze, filter the tiny particle impurity by PP cotton and carbon-point again, detach the taste by the activated carbon layer at last, avoid impurity to collect and make the inside sewage of sedimentation tank deposit unclean, be favorable to improving precipitation efficiency, and the water after filtering can directly be used for the production life, the environmental protection is favorable to resources are saved simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a top plan view of the entirety of the present invention;
FIG. 2 is a cross-sectional view of the entirety of the present invention;
FIG. 3 is a schematic view of the lift assembly of the present invention;
FIG. 4 is an enlarged detail view of the ball of the present invention;
FIG. 5 is an enlarged view of a detail of the outlet tube of the present invention;
in the figure: 1. a sedimentation tank; 2. a lifting assembly; 3. a partition plate; 4. a rubber pad; 5. a water inlet pipe; 6. a metal mesh; 7. a water outlet pipe; 8. a threaded rod; 9. a first bevel gear; 10. a rotating shaft; 11. a three-phase motor; 12. a baffle plate; 13. a base plate; 14. a second bevel gear; 15. a first support bar; 16. a thread groove; 17. a ball bearing; 18. an L-shaped connecting plate; 19. a second support bar; 20. a lifting hole; 21. a ball groove; 22. filtering gauze; 23. PP cotton; 24. a carbon rod; 25. and an activated carbon layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a sedimentation tank structure for river sewage treatment comprises a sedimentation tank 1, a lifting component 2, a partition plate 3, a rubber pad 4, a water inlet pipe 5, a metal mesh 6, a water outlet pipe 7, a filter gauze 22, PP cotton 23, a carbon rod 24 and an activated carbon layer 25, wherein the lifting component 2 is arranged on each of two sides of the top of the sedimentation tank 1, each lifting component 2 comprises a threaded rod 8, a first bevel gear 9, a rotating shaft 10, a three-phase motor 11, a baffle 12, a bottom plate 13, a second bevel gear 14, a first supporting rod 15, a threaded groove 16, a ball 17, an L-shaped connecting plate 18, a second supporting rod 19, a lifting hole 20 and a ball groove 21, the bottom plates 13 are fixed on two sides of the top of the sedimentation tank 1 through screws, the baffle 12 is fixed on one side of the top of each bottom plate 13 through screws, a three-phase motor 11 is fixed on one end of each baffle 12 through screws, the three-phase, one end of a rotating shaft 10 is sleeved with a first bevel gear 9, the other end of a bottom plate 13 is provided with a lifting hole 20, a threaded rod 8 is sleeved inside the lifting hole 20, a second bevel gear 14 is sleeved on the top of the threaded rod 8, one end of the second bevel gear 14 is meshed with the first bevel gear 9, a threaded groove 16 is formed in the center of the second bevel gear 14, the threaded groove 16 is sleeved outside the threaded rod 8, a plurality of second support rods 19 are fixed on the top of the other end of the bottom plate 13 through screws, the second support rods 19 are positioned on two sides of the lifting hole 20, one end of each second support rod 19 is fixed with an L-shaped connecting plate 18 through screws, one end of each L-shaped connecting plate 18 is fixed with a first support rod 15 through screws, balls 17 are arranged on the bottom of the first support rod 15 and the top of the second support rod 19, one end of each ball 17 is attached, the ball grooves 21 are sleeved on the outer sides of the balls 17 to facilitate the fixation of the balls 17, the bottom of the threaded rod 8 is provided with a partition plate 3, the partition plate 3 is attached to the inner wall of the sedimentation tank 1, the outer side of the partition plate 3 is sleeved with a rubber pad 4, the outer side of the rubber pad 4 is attached to the inner wall of the sedimentation tank 1 to facilitate the close attachment of the partition plate 3 to the inner wall of the sedimentation tank 1, one end of the sedimentation tank 1 is provided with a water inlet pipe 5, the center of one end of the sedimentation tank 1 is provided with a water inlet hole, the water inlet pipe 5 is sleeved inside the water inlet hole to facilitate the fixation of the water inlet pipe 5, the other end of the sedimentation tank 1 is provided with a water outlet pipe 7, the water outlet pipe 7 is sleeved inside the water outlet pipe to facilitate the fixation of the water outlet pipe 7, the center of one end of the water outlet pipe 7, the outer sides of the filtering gauze 22 and the activated carbon layer 25 are sleeved with metal nets 6, and the metal nets 6 are attached to the inner walls of the water outlet pipes 7; when the sedimentation tank structure for river sewage treatment is used, the water inlet pipe 5 is manually opened, sewage enters the sedimentation tank 1, a chemical mixing agent used for precipitating impurities is added, the impurities precipitate and fall in the sedimentation tank 1, the water outlet pipe 7 is opened, water flows into the water outlet pipe 7, large-particle impurities are filtered by the filter gauze 22, small-particle impurities are filtered by the PP cotton 23 and the carbon rod 24, finally, the taste is removed by the activated carbon layer 25, after the filtration is completed, the three-phase motor 11 is opened at the moment, the three-phase motor 11 rotates to drive the rotating shaft 10 to rotate, the rotating shaft 10 drives the first bevel gear 9 to rotate, the first bevel gear 9 drives the second bevel gear 14 to rotate, the second bevel gear 14 is fixed at a certain position through the bottom of the first supporting rod 15 and the second supporting rod 19, and then the balls 17 at the bottom of the first supporting rod 15 and the second supporting rod 19, second bevel gear 14 rotates and drives 8 rebound of threaded rod, threaded rod 8 drives 3 rebound of baffle, baffle 3 upwards takes 1 top of sedimentation tank with 1 inside filtration of sedimentation tank and the impurity of depositing the accumulation to save, can clear up impurity this moment, start three phase motor 11 after accomplishing the clearance, make first bevel gear 9 anticlockwise rotation, put into 1 inside of sedimentation tank with baffle 3 once more, can clear up once more, convenient and fast more, and conveniently clear up sedimentation tank 1, need not manual operation, it is unclean to avoid sewage impurity to save and make 1 inside sewage of sedimentation tank deposit, be favorable to improving precipitation efficiency.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a sedimentation tank structure for river course sewage treatment, includes sedimentation tank (1), lifting unit (2), baffle (3), rubber pad (4), inlet tube (5), metal mesh (6), outlet pipe (7), filters gauze (22), PP cotton (23), carbon-point (24) and activated carbon layer (25), its characterized in that: the sedimentation tank is characterized in that lifting components (2) are mounted on two sides of the top of the sedimentation tank (1), each lifting component (2) consists of a threaded rod (8), a first bevel gear (9), a rotating shaft (10), a three-phase motor (11), a baffle (12), a bottom plate (13), a second bevel gear (14), a first supporting rod (15), a threaded groove (16), balls (17), an L-shaped connecting plate (18), a second supporting rod (19), lifting holes (20) and a ball groove (21), the bottom plate (13) is fixed on two sides of the top of the sedimentation tank (1) through screws, the baffle (12) is fixed on one side of the top of the bottom plate (13) through screws, one end of the baffle (12) is fixed with the three-phase motor (11) through screws, the three-phase motor (11) is located on the top of the bottom plate (13), the rotating shaft (10) is arranged at one end of the rotating shaft (10), and the first bevel, the lifting hole (20) is formed in the other end of the bottom plate (13), the threaded rod (8) is sleeved in the lifting hole (20), the second bevel gear (14) is sleeved on the top of the threaded rod (8), one end of the second bevel gear (14) is meshed with the first bevel gear (9), the threaded groove (16) is formed in the center of the second bevel gear (14), the threaded groove (16) is sleeved on the outer side of the threaded rod (8), a plurality of second supporting rods (19) are fixed to the top of the other end of the bottom plate (13) through screws, the second supporting rods (19) are located on two sides of the lifting hole (20), the L-shaped connecting plate (18) is fixed to one end of each second supporting rod (19) through a screw, the first supporting rod (15) is fixed to one end of each L-shaped connecting plate (18) through a screw, and the balls (17) are arranged on the bottom of each first supporting rod (15) and the, and ball (17) one end and the laminating of second bevel gear (14), threaded rod (8) bottom is provided with baffle (3), and baffle (3) and sedimentation tank (1) inner wall laminating, sedimentation tank (1) one end is provided with inlet tube (5), sedimentation tank (1) other end is provided with outlet pipe (7), outlet pipe (7) one end center department has cup jointed PP cotton (23), PP cotton (23) one end has cup jointed and has filtered gauze (22), PP cotton (23) other end has cup jointed carbon rod (24), activated carbon layer (25) have been cup jointed to carbon rod (24) one end, filter gauze (22) and activated carbon layer (25) outside all have cup jointed metal mesh (6), and metal mesh (6) and outlet pipe (7) inner wall laminating.
2. The sedimentation tank structure for river sewage treatment according to claim 1, wherein: a water inlet hole is formed in the center of one end of the sedimentation tank (1), and a water inlet pipe (5) is sleeved inside the water inlet.
3. The sedimentation tank structure for river sewage treatment according to claim 1, wherein: a water outlet is formed in the center of the other end of the sedimentation tank (1), and a water outlet pipe (7) is sleeved inside the water outlet.
4. The sedimentation tank structure for river sewage treatment according to claim 1, wherein: the top of the second support rod (19) is provided with a ball groove (21), and the ball groove (21) is sleeved outside the ball (17).
5. The sedimentation tank structure for river sewage treatment according to claim 1, wherein: the outer side of the partition plate (3) is sleeved with a rubber pad (4), and the outer side of the rubber pad (4) is attached to the inner wall of the sedimentation tank (1).
CN201911059522.8A 2019-11-01 2019-11-01 Sedimentation tank structure for river sewage treatment Withdrawn CN112759109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911059522.8A CN112759109A (en) 2019-11-01 2019-11-01 Sedimentation tank structure for river sewage treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911059522.8A CN112759109A (en) 2019-11-01 2019-11-01 Sedimentation tank structure for river sewage treatment

Publications (1)

Publication Number Publication Date
CN112759109A true CN112759109A (en) 2021-05-07

Family

ID=75691960

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911059522.8A Withdrawn CN112759109A (en) 2019-11-01 2019-11-01 Sedimentation tank structure for river sewage treatment

Country Status (1)

Country Link
CN (1) CN112759109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114307267A (en) * 2021-12-31 2022-04-12 苏州鸿恩环保科技有限公司 Efficient loop filter formula domestic sewage rapid treatment system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114307267A (en) * 2021-12-31 2022-04-12 苏州鸿恩环保科技有限公司 Efficient loop filter formula domestic sewage rapid treatment system

Similar Documents

Publication Publication Date Title
CN215232688U (en) One-time precipitation precision filter
CN112759109A (en) Sedimentation tank structure for river sewage treatment
CN111039458B (en) Ecological prosthetic devices in plateau lake fishery waters
CN208809713U (en) A kind of air purifier removing haze for city
CN116043800A (en) Water environment circulation purifying device
CN215585602U (en) Chemical weight-reducing drug production is with waste water discharge treatment facility
CN214439997U (en) Filtering and impurity removing device for resin glue solution for resin production
CN213680142U (en) Mine domestic sewage filter equipment
CN214654096U (en) Sewage treatment device
CN212216144U (en) A edulcoration device for preparing refined industrial salt production usefulness
CN209619154U (en) A kind of sewage treatment sludge filtration device
CN209636025U (en) One kind being used for municipal urban wastewater treatment device
CN208389560U (en) A kind of sewage multi-stage treatment units
CN219489713U (en) Ozone oxidation sewage pretreatment equipment
CN210631782U (en) Filter cloth rotary disc filtering device for removing suspended matters
CN214880911U (en) A effluent treatment plant for in stainless steel production
CN218968924U (en) Water treatment filter tank
CN219539583U (en) Sewage treatment device with multiple filtering function
CN208586130U (en) A kind of purifier with automatically cleaning strainer function
CN218642531U (en) Membrane collection and treatment device for recovering precious metals from industrial wastewater
CN218306378U (en) Automatic multi-connection filtering device for water treatment
CN220090625U (en) Wastewater treatment filtering device
CN210945139U (en) Waste water treatment device after gel production
CN219156555U (en) Multistage filtering device for treating industrial wastewater
CN214861559U (en) Integrated concrete mixing tank sewage treatment equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20210507

WW01 Invention patent application withdrawn after publication