CN110194544A - A kind of water treatment facilities for chemical contamination waters - Google Patents
A kind of water treatment facilities for chemical contamination waters Download PDFInfo
- Publication number
- CN110194544A CN110194544A CN201910552001.XA CN201910552001A CN110194544A CN 110194544 A CN110194544 A CN 110194544A CN 201910552001 A CN201910552001 A CN 201910552001A CN 110194544 A CN110194544 A CN 110194544A
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- China
- Prior art keywords
- water
- shell
- chemical contamination
- treatment facilities
- pipe
- 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.)
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Classifications
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of water treatment facilities for chemical contamination waters, including shell, water inlet structure and the reagent addition structure for handling chemical contamination are provided with and communicated on the shell, the shell is separated to form precipitation process chamber and water chamber by partition, inlay the fine-structure mesh plate being provided with for being connected to precipitation process chamber and water chamber in the partition top, the reagent addition structure drives rotation by driving motor and cooperates with water inlet structure activity, the cleaning mechanism being provided with for removing fine-structure mesh plate surface dirt is also connected with above the water chamber side, the cleaning mechanism connect transmission with rotated pipe.Floccule can be retained by coarse net plate in the present invention, and avoiding enter into influences water process in device；Cleaning head rotates under rotated pipe drive, avoids impurity from being attached to coarse net plate surface, so as to extend the continuous use time of device；Rotational sleeve is synchronous to carry out positive and negative rotation, and brush holder support is driven to clean fine-structure mesh plate surface impurity with water.
Description
Technical field
The present invention relates to hydrotechnics field, specifically a kind of water treatment facilities for chemical contamination waters.
Background technique
Hydraulic engineering is the surface water and groundwater for controlling and deploying nature, reaches and removes the evil emerging sharp purpose and build
Engineering.Hydraulic engineering is only built, just can control water flow, prevents flood, and carries out the adjusting and distribution of water, with full
Sufficient people's lives and production are to the needs of water resource.There are pollutions in regulation process for the water body of some waters or regional area
Situation, common contaminant filter can not handle water body problem well, and if directly deploying the region water body, shadow can be polluted
It rings and arrives other waters.
In the prior art, adsorbent is generally used for the water body with chemical contamination or medicament is handled, inhaled
The attached dose of processing suitable for a small amount of water body, when water is larger, addition medicament can generate larger amount of precipitating, and sediment has cotton-shaped heavy
The types such as shallow lake and solid precipitating, fixed precipitating can settle removal, and flocculent deposit is easy blocking water inlet and ties in filtering removal
Structure and discharge structure, to influence treatment effect.
Summary of the invention
The purpose of the present invention is to provide a kind of water treatment facilities for chemical contamination waters, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme:
A kind of water treatment facilities for chemical contamination waters, including shell, be provided with and communicated on the shell water inlet structure and
Reagent for handling chemical contamination adds structure, and the shell is separated to form precipitation process chamber and water chamber by partition,
The fine-structure mesh plate being provided with for being connected to precipitation process chamber and water chamber is inlayed on the partition top, and the reagent addition structure passes through
Driving motor driving rotates and cooperates with water inlet structure activity, is also connected with and is provided with for removing above the water chamber side
The cleaning mechanism of fine-structure mesh plate surface dirt, the cleaning mechanism connect transmission with rotated pipe.
Further, for the water inlet structure by precipitation process chamber side through protruding into shell, it is logical that reagent adds structure
It crosses above precipitation process chamber and protrudes into and be correspondingly arranged with water inlet structure, precipitation process chamber side, which is also connected with, is provided with impurity-discharging pipe, sinks
Shallow lake processing chamber bottom is fixedly installed water conservancy diversion bottom plate, and the water conservancy diversion backplate surface is obliquely installed in slope surface and face toe and impurities removal
Tube opening alignment.
Further, the water inlet structure includes the water inlet pipe for penetrating through housing sidewall and connection setting in water inlet pipe end
Water cover, the water cover is barrel cover shape, and the arc-shaped recess in water cover end face, water cover arc-shaped recess surface are removable
It unloads to inlay and is provided with coarse net plate, be adapted at the arc-shaped recess of the water cover with reagent addition structural base.
Further, reagent addition structure includes vertically through shell and rotationally connected rotated pipe, even
It connects and the kit of rotated pipe upper end is set in the cleaning head of rotated pipe end and connection.
Further, the rotated pipe surface, which is located to penetrate through in shell, is provided with multiple groups through-hole, outside the rotated pipe
The output end of upper part and driving motor passes through the connection transmission of the first driving belt.
Further, the cleaning head is cylindrical-shaped structure, and surface is densely covered with bristle, the bristle of the cleaning head surface
It is bonded with coarse net plate activity.
Further, the upper part of the housing perforation of the water chamber side is connected with outlet pipe, sets on the outlet pipe
There is valve.
Further, the cleaning mechanism includes that the rotational sleeve being rotatably arranged on shell and activity cooperation are rotating
The elevating lever of sleeve lower end, the rotational sleeve are rotatably connected on shell upper end by sealing bearing, and under the rotational sleeve
End is connected to water chamber, is connected between the outer upper part of the rotational sleeve and the outer upper part of rotated pipe by the second driving belt
Transmission.
Further, the elevating lever is movably connected in rotational sleeve by being threadedly engaged, and the elevating lever lower end is solid
Surely it is connected with brush holder support, activity fitting in the brush holder support side is arranged in fine-structure mesh plate side.
Compared with prior art, the beneficial effects of the present invention are: after water flow entered by water inlet pipe, wherein on a small quantity adulterating
Floccule can be retained by coarse net plate, and avoiding enter into influences water process in device, for handling chemical contamination in kit
Reagent after rotated pipe from through-hole by overflowing and being mixed with water, so that it is heavy to react generation with chemical impurity upon mixing
It forms sediment, is convenient for subsequent discharge, while adding reagent, cleaning head high-speed rotation under rotated pipe drive avoids flocculent deposit
The precipitating that chemical reaction generates in object and water is attached to coarse net plate surface, when continuous use so as to extend device
Between, reduce manual maintenance；Water flow enters in water chamber after being filtered again by fine-structure mesh plate, and driving motor positive and negative rotation simultaneously drives rotation
When pipeline rotates, rotational sleeve is synchronous to carry out positive and negative rotation, and elevating lever is equipped in rotational sleeve lower part, and elevating lever lower end is solid
Surely the brush holder support connected is fitted in fine-structure mesh plate side, so that elevating lever rotation is limited, elevating lever company of being formed when rotational sleeve rotates
Continuous elevating movement, thus can drive brush holder support to clean fine-structure mesh plate surface with water, avoid fine-structure mesh plate surface miscellaneous during cleaning with water
Matter attachment, and brush holder support is to be fitted in fine-structure mesh plate surface, and when elevating lever and rotational sleeve cooperative movement will cause brush holder support and constantly tremble
And percussion of the formation to fine-structure mesh plate, preferably impurity can be avoided to adhere in this way, treated, and water passes through outlet pipe discharge.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of water treatment facilities for chemical contamination waters.
Fig. 2 is a kind of structural schematic diagram of water inlet structure in water treatment facilities for chemical contamination waters.
Fig. 3 is a kind of structural schematic diagram of cleaning mechanism in water treatment facilities for chemical contamination waters.
In figure: 1- shell, 2- partition, 3- water inlet pipe, 4- water cover, 5- coarse net plate, 6- rotated pipe, 7- cleaning head, 8-
Through-hole, 9- kit, 10- driving motor, the first driving belt of 11-, 12- water conservancy diversion bottom plate, 13- impurity-discharging pipe, 14- fine-structure mesh plate, 15-
Outlet pipe, 16- rotational sleeve, the second driving belt of 17-, 18- elevating lever, 19- brush holder support.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Please refer to Fig. 1~2, in the embodiment of the present invention, a kind of water treatment facilities for chemical contamination waters, including shell 1, institute
It states and is provided with and communicated with water inlet structure and the reagent addition structure for handling chemical contamination on shell 1, the shell 1 passes through partition
2 are separated to form precipitation process chamber and water chamber, and 2 top of partition, which is inlayed, to be provided with for being connected to precipitation process chamber and water outlet
The fine-structure mesh plate 14 of chamber, the reagent addition structure cooperate by the driving of driving motor 10 rotation and with water inlet structure activity.
The driving motor 10 is servo motor, is in continuous positive and negative rotation after starting.
For the water inlet structure by precipitation process chamber side through protruding into shell 1, reagent addition structure passes through place of settling
It protrudes into and is correspondingly arranged with water inlet structure above reason chamber, precipitation process chamber side, which is also connected with, is provided with impurity-discharging pipe 13, chemical impurity
It precipitates after processing and is discharged by impurity-discharging pipe 13, precipitation process bottom of chamber portion is fixedly installed water conservancy diversion bottom plate 12, the water conservancy diversion bottom plate
12 surfaces are obliquely installed in slope surface and 13 register of face toe and impurity-discharging pipe.
The water inlet structure includes that the water outlet of 3 end of water inlet pipe is arranged in the water inlet pipe 3 for penetrating through 1 side wall of shell and connection
Cover 4, the water cover 4 is barrel cover shape, and the arc-shaped recess in 4 end face of water cover, the 4 arc-shaped recess surface of water cover are detachable
It inlays and is provided with coarse net plate 5, after water flow is entered by water inlet pipe 3, wherein the floccule adulterated on a small quantity can be cut by coarse net plate 5
It stays, avoiding enter into influences water process in device；It is adapted at the arc-shaped recess of the water cover 4 with reagent addition structural base.
Reagent addition structure includes vertically through shell 1 and rotationally connected rotated pipe 6, being connected to rotation
The kit 9 of 6 upper end of rotated pipe is arranged in the cleaning head 7 of 6 end of pipeline and connection, and 6 surface of rotated pipe is located at
Perforation is provided with multiple groups through-hole 8 in shell 1, in kit 9 for handle the reagent of chemical contamination by after rotated pipe 6 from logical
Hole 8 is overflowed and is mixed with water, to react generation precipitating with chemical impurity upon mixing, is convenient for subsequent discharge, described clear
Clean head 7 is cylindrical-shaped structure, and surface is densely covered with bristle, and the bristle on 7 surface of cleaning head is bonded with 5 activity of coarse net plate；Institute
It states the outer upper part of rotated pipe 6 and transmission, the driving electricity is connect by the first driving belt 11 with the output end of driving motor 10
Machine 10 is fixed on 1 upper end of shell by riveting method.In this way while adding reagent, cleaning head 7 is under the drive of rotated pipe 6
High-speed rotation avoids the precipitating that chemical reaction generates in flocky precipitate and water from being attached to 5 surface of coarse net plate, so as to
The continuous use time for enough extending device, reduce manual maintenance.
1 top of the shell perforation of the water chamber side is connected with outlet pipe 15, and the outlet pipe 15 is equipped with valve
Door, treated water body by fine-structure mesh plate 14 further filter it is miscellaneous after, open heel row into water chamber, and in outlet pipe 15
Out.
Embodiment 2
Please refer to Fig. 1 and 3, in the embodiment of the present invention, a kind of water treatment facilities for chemical contamination waters, in embodiment 1
On the basis of, the cleaning mechanism being provided with for removing 14 surface smut of fine-structure mesh plate, institute are also connected with above the water chamber side
It states cleaning mechanism and connect transmission with rotated pipe 6.
The cleaning mechanism includes the rotational sleeve 16 being rotatably arranged on shell 1 and activity cooperation in rotational sleeve 16
The elevating lever 18 of lower end, the rotational sleeve 16 are rotatably connected on 1 upper end of shell, and the rotational sleeve 16 by sealing bearing
Lower end is connected to water chamber, passes through the second transmission skin between the outer upper part of the rotational sleeve 16 and the outer upper part of rotated pipe 6
The connection transmission of band 17；The elevating lever 18 is movably connected in rotational sleeve 16 by being threadedly engaged, 18 lower end of elevating lever
It is fixedly connected and is provided with brush holder support 19,19 side activity of the brush holder support fitting is arranged in 14 side of fine-structure mesh plate.When driving motor 10 just
When inverting and rotated pipe 6 being driven to rotate, rotational sleeve 16 is synchronous to carry out positive and negative rotation, and elevating lever 18 is equipped in rotational sleeve
16 lower parts, and the brush holder support 19 that 18 lower end of elevating lever is fixedly connected is fitted in 14 side of fine-structure mesh plate, so that the rotation of elevating lever 18 is limited,
Elevating lever 18 forms continuous elevating movement when rotational sleeve 16 rotates, and can thus drive brush holder support 19 to 14 surface of fine-structure mesh plate
It is cleaned with water, avoids 14 surface impurity of fine-structure mesh plate to adhere to during cleaning with water, and brush holder support 19 is to be fitted in 14 surface of fine-structure mesh plate, lifting
It will cause brush holder support 19 when 16 cooperative movement of bar 18 and rotational sleeve constantly to tremble and form the percussion to fine-structure mesh plate 14, it in this way can be with
Preferably impurity is avoided to adhere to.
The working principle of the invention is: after water flow is entered by water inlet pipe 3, wherein the floccule adulterated on a small quantity can be thick
Web plate 5 retains, and avoiding enter into influences water process in device, passes through rotation for handling the reagent of chemical contamination in kit 9
It overflows after pipeline 6 from through-hole 8 and is mixed with water, to react generation precipitating, with chemical impurity upon mixing convenient for subsequent
Discharge, while adding reagent, the high-speed rotation under the drive of rotated pipe 6 of cleaning head 7 is avoided in flocky precipitate and water
The precipitating that chemical reaction generates is attached to 5 surface of coarse net plate, so as to extend the continuous use time of device, reduces people
Work maintenance；Water flow enters in water chamber after being filtered again by fine-structure mesh plate 14, and 10 positive and negative rotation of driving motor simultaneously drives rotated pipe 6
When rotation, rotational sleeve 16 is synchronous to carry out positive and negative rotation, and elevating lever 18 is equipped in 16 lower part of rotational sleeve, and under elevating lever 18
The brush holder support 19 being fixedly connected is held to be fitted in 14 side of fine-structure mesh plate, to limit the rotation of elevating lever 18, elevating lever 18 is in rotational sleeve
Continuous elevating movement is formed when 16 rotation, can thus drive brush holder support 19 to clean 14 surface of fine-structure mesh plate with water, clean process with water
In avoid 14 surface impurity of fine-structure mesh plate from adhering to, and brush holder support 19 is to be fitted in 14 surface of fine-structure mesh plate, elevating lever 18 and rotational sleeve 16
It will cause brush holder support 19 when cooperative movement constantly to tremble and form the percussion to fine-structure mesh plate 14, can preferably avoid impurity attached in this way
, treated, and water is discharged by outlet pipe 15.
The standardized element that the present invention uses can commercially, and shaped piece is according to specification and attached drawing note
Load can carry out customized, and the specific connection type of each part is all made of in the prior art mature bolt, rivet, welding etc.
Conventional means, mechanical, part and equipment are all made of in the prior art, conventional model, in addition circuit connection uses the prior art
Middle conventional connection type, this will not be detailed here.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. a kind of water treatment facilities for chemical contamination waters, including shell (1), be provided with and communicated on the shell (1) into
Water-bound and reagent for handling chemical contamination add structure, and the shell (1) is separated to form precipitation process by partition (2)
Chamber and water chamber, which is characterized in that partition (2) top, which is inlayed, to be provided with for being connected to precipitation process chamber and water chamber
Fine-structure mesh plate (14), the reagent addition structure cooperates by driving motor (10) driving rotation and with water inlet structure activity, described
The cleaning mechanism being provided with for removing fine-structure mesh plate (14) surface smut, the cleaning mechanism are also connected with above water chamber side
Transmission is connect with reagent addition structure.
2. a kind of water treatment facilities for chemical contamination waters according to claim 1, which is characterized in that the water inlet
Structure is by precipitation process chamber side through protruding into shell (1), and reagent addition structure above precipitation process chamber by protruding into simultaneously
It is correspondingly arranged with water inlet structure, precipitation process chamber side, which is also connected with, to be provided with impurity-discharging pipe (13), and the fixation of precipitation process bottom of chamber portion is set
It is equipped with water conservancy diversion bottom plate (12), water conservancy diversion bottom plate (12) surface is obliquely installed in slope surface and face toe and impurity-discharging pipe (13) are open
Alignment.
3. a kind of water treatment facilities for chemical contamination waters according to claim 1, which is characterized in that the water inlet
Structure includes the water inlet pipe (3) of perforation shell (1) side wall and is connected to the water cover (4) being arranged in water inlet pipe (3) end, described
Water cover (4) is barrel cover shape, and the arc-shaped recess in water cover (4) end face, water cover (4) the arc-shaped recess surface are detachably inlayed
It is embedded and is equipped with coarse net plate (5), be adapted at the arc-shaped recess of the water cover (4) with reagent addition structural base.
4. a kind of water treatment facilities for chemical contamination waters according to claim 3, which is characterized in that the reagent
Addition structure includes vertically through shell (1) and rotationally connected rotated pipe (6), being connected to rotated pipe (6) end
Cleaning head (7) and connection setting rotated pipe (6) upper end kit (9).
5. a kind of water treatment facilities for chemical contamination waters according to claim 4, which is characterized in that the rotation
Pipeline (6) surface is located at perforation in shell (1) and is provided with multiple groups through-hole (8), the outer upper part of the rotated pipe (6) and driving electricity
The output end of machine (10) passes through the first driving belt (11) connection transmission.
6. a kind of water treatment facilities for chemical contamination waters according to claim 4, which is characterized in that the cleaning
Head (7) is cylindrical-shaped structure, and surface is densely covered with bristle, and the bristle on cleaning head (7) surface and coarse net plate (5) activity are pasted
It closes.
7. a kind of water treatment facilities for chemical contamination waters according to claim 1, which is characterized in that the water outlet
Shell (1) the top perforation of chamber side is connected with outlet pipe (15), and the outlet pipe (15) is equipped with valve.
8. a kind of water treatment facilities for chemical contamination waters according to claim 1 or 4, which is characterized in that cleaning
Mechanism includes the lifting of the rotational sleeve (16) being rotatably arranged on shell (1) and activity cooperation in rotational sleeve (16) lower end
Bar (18), the rotational sleeve (16) are rotatably connected on shell (1) upper end, rotational sleeve (16) periphery by sealing bearing
Transmission is connect by the second driving belt (17) between top and rotated pipe (6) outer upper part.
9. a kind of water treatment facilities for chemical contamination waters according to claim 8, which is characterized in that the lifting
Bar (18) is movably connected in rotational sleeve (16) by being threadedly engaged, and elevating lever (18) lower end, which is fixedly connected, is provided with brush
Bar (19), brush holder support (19) the side activity fitting are arranged in fine-structure mesh plate (14) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552001.XA CN110194544A (en) | 2019-06-25 | 2019-06-25 | A kind of water treatment facilities for chemical contamination waters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910552001.XA CN110194544A (en) | 2019-06-25 | 2019-06-25 | A kind of water treatment facilities for chemical contamination waters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110194544A true CN110194544A (en) | 2019-09-03 |
Family
ID=67755070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910552001.XA Withdrawn CN110194544A (en) | 2019-06-25 | 2019-06-25 | A kind of water treatment facilities for chemical contamination waters |
Country Status (1)
| Country | Link |
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| CN (1) | CN110194544A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110697931A (en) * | 2019-09-27 | 2020-01-17 | 临沂大学 | Drinking mineral water multi-layer adsorption filtering device with pre-oxidation function |
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| CN204607762U (en) * | 2015-04-28 | 2015-09-02 | 广东梅雁吉祥水电股份有限公司 | A kind of wastewater treatment equipment |
| CN206956920U (en) * | 2017-06-04 | 2018-02-02 | 江苏省苏中建设集团股份有限公司 | A kind of architectural engineering sewage withdrawing device |
| CN108191134A (en) * | 2018-01-15 | 2018-06-22 | 湖南望隆企业管理咨询有限公司 | A kind of sewage fractional precipitation filter device |
| CN208829434U (en) * | 2018-07-20 | 2019-05-07 | 宜昌建投水务有限公司 | A kind of sewage disposal device being convenient to clean |
| CN208869422U (en) * | 2018-09-20 | 2019-05-17 | 河北成运环保设备有限公司 | Filtering water treatment equipment |
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2019
- 2019-06-25 CN CN201910552001.XA patent/CN110194544A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204607762U (en) * | 2015-04-28 | 2015-09-02 | 广东梅雁吉祥水电股份有限公司 | A kind of wastewater treatment equipment |
| CN206956920U (en) * | 2017-06-04 | 2018-02-02 | 江苏省苏中建设集团股份有限公司 | A kind of architectural engineering sewage withdrawing device |
| CN108191134A (en) * | 2018-01-15 | 2018-06-22 | 湖南望隆企业管理咨询有限公司 | A kind of sewage fractional precipitation filter device |
| CN208829434U (en) * | 2018-07-20 | 2019-05-07 | 宜昌建投水务有限公司 | A kind of sewage disposal device being convenient to clean |
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| CN110697931A (en) * | 2019-09-27 | 2020-01-17 | 临沂大学 | Drinking mineral water multi-layer adsorption filtering device with pre-oxidation function |
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Application publication date: 20190903 |