CN109879467A - Sludge condensation separator for treating mine drainage - Google Patents
Sludge condensation separator for treating mine drainage Download PDFInfo
- Publication number
- CN109879467A CN109879467A CN201910278003.4A CN201910278003A CN109879467A CN 109879467 A CN109879467 A CN 109879467A CN 201910278003 A CN201910278003 A CN 201910278003A CN 109879467 A CN109879467 A CN 109879467A
- Authority
- CN
- China
- Prior art keywords
- separator
- reaction
- clear liquid
- sludge
- shell
- 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.)
- Granted
Links
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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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)
- Physical Water Treatments (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of method for sludge treatment, in particular to a kind of sludge condensation separator for treating mine drainage, the device includes shell, separator, cavitation air-dissolving apparatus and Slag Scraping Device, and the side of shell is equipped with material inlet, clear liquid drainage, dross outlet and sediment outlet；Separator has a conical bottom and is set to the inside of shell, the conical bottom is connected with sediment outlet, the Reaction-diffusion terms cylinder that a both ends are in flare openings is equipped at center in separator, the cavitation air-dissolving apparatus is set in the Reaction-diffusion terms cylinder, and the material inlet protrudes into the bottom of Reaction-diffusion terms cylinder by pipeline.The present invention realizes that heavy mud, light weight sludge concentration and clear liquid separate using the processing of one step of air bearing principle, can effectively solve the problems, such as that sludge condensation containing coal is handled, improve coal mine sewage treatment effect.
Description
The application be application No. is 201610406098X, applying date 2016-06-12, entitled " one kind is dirty containing coal
The divisional application of the patent of invention of mud concentration and separation method and device ".
Technical field
The present invention relates to a kind of method for sludge treatment, in particular to a kind of sludge condensation for treating mine drainage separates dress
It sets, belongs to Environmental Technology protection field.
Background technique
Coal is the main non-renewable energy in China, will not be changed for a long time.As environmental protection is increasingly stringenter, coal mine
The stain disease of enterprise is handled by unprecedented attention.The especially sanitary sewage of coal field, water treatment technology itself is
Relative maturity is perfect；But the sludge containing coal that water process generates is always the difficult point of mine domestic wastewater processing and finally pollutes
Source.
The organization of production feature in mining area makes a large amount of coal dust, cinder enter Sewage System, in sanitary sewage disposal system
Primary sedimentation tank, reaction tank of system etc. are precipitated out, and are ultimately discharged into sludge concentration tank.Since coal dust, cinder physical property and life are dirty
Mud has very big difference, and sinking speed is very fast, poor fluidity, easy to harden, causes that most of sludge concentration tank effect is poor, sludge plate
Knot, blocking transfer pipeline etc., reduce the treatment effect of sewage disposal system.
Summary of the invention
The present invention provides a kind of sludge condensation separator for treating mine drainage, is handled using one step of air bearing principle real
Existing heavy mud, light weight sludge concentration and clear liquid separation, can effectively solve the problems, such as that sludge condensation containing coal is handled, improve coal mine
Wastewater treatment efficiency.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of sludge condensation separator for treating mine drainage, the device include shell, separator, cavitation air-dissolving apparatus and
The side of Slag Scraping Device, shell is equipped with material inlet, clear liquid drainage, dross outlet and sediment outlet；Separator has one
A conical bottom and the inside for being set to shell, the conical bottom are connected with sediment outlet, and one liang is equipped at the center in separator
Head is in the Reaction-diffusion terms cylinder of flare openings, and the cavitation air-dissolving apparatus is set in the Reaction-diffusion terms cylinder, and the material inlet is logical
Cross the bottom that pipeline protrudes into Reaction-diffusion terms cylinder.The separator is concentrated and separated for realizing the circulation of sludge, wherein the molten gas of cavitation
Device is for air to be dissolved in sludge；The light weight sludge containing microbubble is floated, at the beginning of heavy mud in Reaction-diffusion terms cylinder
Step precipitating；Sedimentation settling section realization clear liquid is further separated with sludge, and heavy mud is further concentrated for sediment compression section；Out
Mill weir separates clear liquid；Dross is discharged for Slag Scraping Device and scum board.
Preferably, Reaction-diffusion terms cylinder makes to be divided into Reaction-diffusion terms section, sedimentation settling section and sediment compression section in separator
Three regions, Reaction-diffusion terms cylinder inside is Reaction-diffusion terms section, and the region on the outside of Reaction-diffusion terms cylinder barrel is sedimentation settling section, reaction
Region below diffusion barrel is sediment compression section.
Preferably, Slag Scraping Device is set to the top of separator, is rotated by scraper plate and dross is discharged.
Preferably, Reaction-diffusion terms cylinder is vertically arranged in separator interior, bottom is toy trumpet mouth, and top is big loudspeaker
The height ratio of mouth, toy trumpet mouth and typhon mouth is 1:3-4.
Preferably, two bell-mouthed oblique angles of Reaction-diffusion terms cylinder are 15 ° -75 °, with specific reference to sludge specific gravity and containing solid
Rate setting.It is further preferred that the oblique angle of toy trumpet mouth is 43-48 °, the oblique angle of typhon mouth is 58-62 °.The big loudspeaker on top
The angle of mouth mainly influences the deceleration of water flow, this is related to sludge specific gravity and solid content, and lower part toy trumpet mouth primarily serves
The guide functions of recycling.
Preferably, shell is rectangle, separator is at its core and the space in shell is separated into left and right two
Part, separator right hand top are equipped with semi-circular adjustable effluent weir, scum board and rotary Slag Scraping Device, separator lower right-hand side
Clear liquid baffle is equipped between outer casing inner wall, the space in shell between separator right side is separated, be may bring up by clear liquid baffle
Space between mill weir and clear liquid baffle is clear liquid collecting region, and clear liquid drainage is adjacent with clear liquid baffle and the side of being provided thereon.
Preferably, being equipped with the dross sedimentation plate being inclined outwardly below separator left bottom between outer casing inner wall, float
Slag settles plate and separates the space in shell between separator left side, and dross outlet is adjacent with dross sedimentation plate and is set to it
Top.
A kind of separation method of sludge condensation containing coal using described device, this method comprises:
Sludge containing coal by conditioning is sent into separator, tiny air bubble is dissolved in by cavitation air-dissolving apparatus, it will be in sludge
Light weight sludge, heavy mud circulation concentration and separation, moisture is discharged in the form of clear liquid；
Light weight sludge is floated into separator top, is struck off by Slag Scraping Device；
Heavy mud is sunk into separator lower part, is discharged after compression by sediment outlet；
The circulation concentration and separation process includes Reaction-diffusion terms, sedimentation clarification, sediment compression；It will tentatively be sunk by Reaction-diffusion terms cylinder
The molten gas floating separation again of lighter part, moves in circles in the heavy mud in shallow lake, until light weight sludge all floats, heavy dirt
Mud sedimentation compression.Whole process is completed in separator interior by gravity and buoyancy, and extra power is not necessarily to.This method utilizes cavitation
Air bearing principle is concentrated and separated sludge containing coal.The circulation concentration and separation are expanded by the reaction of special designing in separator
It dissipates cylinder to realize, according to sludge specific gravity and concentration etc., designs different Reaction-diffusion terms cylinder diameter, cone angle and height, realize that sludge is molten
Rise naturally during gas, recycle molten gas and separation process.
The beneficial effects of the present invention are: the separation method of sludge condensation containing coal of the invention and device pass through separator interior
Molten gas, floating, concentration and separation process are recycled, sludge containing coal produced by Technique of Coal Mine Drainage and sanitary sewage disposal process may be implemented
In heavy mud, light weight sludge and clear liquid efficiently separate；Avoid the molten gas mode of tradition using the molten gas of cavitation structure is complicated,
Susceptible to plugging drawback；Simultaneously because separator is not necessarily to extra power using internal circulation, with equipment is simple, low energy consumption, maintenance
The features such as facilitating.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention；
Fig. 2 is structural schematic diagram of the present invention for the sludge condensation separator for the treatment of mine drainage；
Fig. 3 is top view of the present invention for the sludge condensation separator for the treatment of mine drainage；
Label declaration: shell 1, separator 2, cavitation air-dissolving apparatus 3, Slag Scraping Device 4, material inlet 5, clear liquid drainage 6, dross row
Outlet 7, sediment outlet 8, Reaction-diffusion terms cylinder 9, Reaction-diffusion terms section 10 settle settling section 11, sediment compression section 12, scum board
13, effluent weir 14, clear liquid baffle 15, dross sedimentation plate 16, clear liquid collecting region 17.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention will be further explained in detail.It answers
Work as understanding, implementation of the invention is not limited by the following examples, the accommodation in any form done to the present invention and/or
Change falls within the scope of the present invention.
Embodiment:
A kind of sludge condensation separator for treating mine drainage as shown in Figures 2 and 3, the device include shell 1, separation
The side of device 2, cavitation air-dissolving apparatus 3, Slag Scraping Device 4, shell 1 is equipped with material inlet 5, clear liquid drainage 6,7 and of dross outlet
Sediment outlet 8；Separator has a conical bottom and is set to the inside of shell, which is connected with sediment outlet,
The Reaction-diffusion terms cylinder 9 that a both ends are in flare openings is equipped at center in separator, it is anti-that the cavitation air-dissolving apparatus is set to this
It answers in diffusion barrel, the material inlet protrudes into the bottom of Reaction-diffusion terms cylinder by pipeline, and Reaction-diffusion terms cylinder makes to separate in separator
For Reaction-diffusion terms section 10, sedimentation settling section 11 and the region of sediment compression section 12 3, Reaction-diffusion terms cylinder inside is Reaction-diffusion terms section,
Region on the outside of Reaction-diffusion terms cylinder barrel is sedimentation settling section, and the region below Reaction-diffusion terms cylinder is sediment compression section；Slag Scraping Device
Set on the top of separator, is rotated by scraper plate and dross is discharged.Slag Scraping Device 4 is rotary.
Shell is rectangle, and separator is at its core and the space in shell is separated into left and right two parts, separation
Device right hand top is equipped with semi-circular adjustable effluent weir 14 and scum board 13, is equipped between separator lower right-hand side and outer casing inner wall
Clear liquid baffle 15, clear liquid baffle by shell on the right side of separator between space separate, adjustable effluent weir and clear liquid baffle it
Between space be clear liquid collecting region 17, clear liquid drainage 6 is adjacent with clear liquid baffle and the side of being provided thereon.Under separator left bottom
Between side and outer casing inner wall be equipped be inclined outwardly dross sedimentation plate 16, dross settle plate by shell separator on the left of between
Space separate, dross outlet 7 and dross settle that plate is adjacent and the side of being provided thereon.
Reaction-diffusion terms cylinder is vertically arranged in separator interior, and bottom is toy trumpet mouth, and top is typhon mouth, small loudspeaker
The height ratio of mouth and typhon mouth is 1:3.Small bell-mouthed oblique angle is 45 ° in the present embodiment, and the oblique angle of typhon mouth is
60°。
As shown in Figure 1, sludge containing coal is after physics or chemical conditioning, into the sludge condensation for treating mine drainage
Separator, by the molten gas of cavitation, light weight sludge floatation thickening, separation；Heavy mud sedimentation clarification, compression separation；Clear liquid returns
Stream.Material is handled in intermediate separator, the clear liquid separated settles plate in dross in the part of 15 or more clear liquid baffle, dross
16 above sections, sediment is in separator cone bottom.
It is a kind of to carry out the separation method of sludge condensation containing coal using the present apparatus and be:
Sludge containing coal, into cavitation air-dissolving apparatus bottom, passes through cavitation by being sent into separator center by material inlet after conditioning
Air-dissolving apparatus dissolves in tiny air bubble, under bubble and flow action, stirring of the light weight sludge in buoyancy and the molten gas impeller of cavitation
Effect is lower to float rapidly, slows down at the superposed typhon mouth of Reaction-diffusion terms section, separates with clear liquid, the lightweight finally to float
Sludge is struck off by Slag Scraping Device, pushes to the discharge of dross outlet；Heavy mud a part is detached from mixed system after molten gas, rapidly
Sink, into sediment compression section；In sedimentation settling section Direct precipitation clarification, fining end lease making is crossed may bring up the clear liquid of initial gross separation
Mill weir enters clear liquid collecting region 17, is discharged by clear liquid drainage 6；The mud granule object wherein contained can slow down because of water flow, by
Sedimentation settling section is gradually sunk to down realizes further separation, the further compression dehydration together with the heavy mud directly sunk, by sinking
Slag outlet 8 is discharged；Enter sediment compression section containing sludge part, wherein being located at the lighter sludge quilt on 12 upper layer of sediment compression section
Circulating water flow brings Reaction-diffusion terms cylinder into again and carries out molten gas floating, and then is again separate out light weight sludge；It loops back and forth like this, directly
It all floats to light weight sludge, heavy mud sedimentation compression；Whole process only needs primary molten gas, Zhi Houtong in separator interior
It crosses gravity and buoyancy is completed, be not necessarily to other power.The method of the invention realizes the concentration and separation of the circulation of the sludge containing coal, Ke Yiyou
Imitate the heavy mud based on cinder and the light weight sludge based on domestic sludge in separated sludge.
Specifically, the sludge containing coal being sent by material inlet 5 can be improved by physics or chemical conditioning；Dross discharge
The light weight sludges of 7 discharge of mouth can be pumped directly into sludge dewatering equipment and carry out dehydration and final disposal；What sediment outlet 8 was discharged
Heavy mud can be according to mobility status, using Pulp pump or screw conveyor conveying discharge；The water that clear liquid drainage 6 is discharged
Sewage disposal system can be sent back to by dividing is handled again, qualified discharge or reuse.
Using the present embodiment, for moisture content after 98% or more the separation of sludge condensation containing coal, dross moisture content≤93%,
Sediment moisture content≤90%, Treatment of Sludge surface loading >=1000kg/ (m2D), hydraulic loading >=8 m3/(m2H), energy consumption compared with
Conventional method saves 30% or more, has good treatment effect.
The present embodiment enormously simplifies the concentration process of the sludge containing coal compared with conventional method；Eliminate conventional sludge air bearing
Necessary air compressor machine, dissolving, reflux pump, microbubble generator and matched external circulation line etc. is concentrated, is greatly saved and sets
Standby cost and energy consumption, while improving the stability of sludge condensation system.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (9)
1. a kind of sludge condensation separator for treating mine drainage, it is characterised in that: the device includes shell (1), separation
Device (2), cavitation air-dissolving apparatus (3) and Slag Scraping Device (4), the side of shell (1) be equipped with material inlet (5), clear liquid drainage (6),
Dross outlet (7) and sediment outlet (8)；Shell is rectangle, and separator has a conical bottom and is set to shell
Inside, the conical bottom are connected with sediment outlet, and a both ends are equipped at the center in separator and are expanded in the reaction of flare openings
It dissipates cylinder (9), the cavitation air-dissolving apparatus is set in the Reaction-diffusion terms cylinder, and the material inlet protrudes into Reaction-diffusion terms cylinder by pipeline
Bottom；Separator is at its core and the space in shell is separated into left and right two parts, and separator right upper portion is equipped with
Semi-circular adjustable effluent weir (14) and scum board (13).
2. the sludge condensation separator according to claim 1 for treating mine drainage, it is characterised in that: Reaction-diffusion terms
Cylinder makes to be divided into Reaction-diffusion terms section (10), sedimentation settling section (11) and the region of sediment compression section (12) three, reaction in separator
It is Reaction-diffusion terms section inside diffusion barrel, the region on the outside of Reaction-diffusion terms cylinder barrel is to settle settling section, below Reaction-diffusion terms cylinder
Region is sediment compression section.
3. the sludge condensation separator according to claim 1 for treating mine drainage, it is characterised in that: Slag Scraping Device is set
In the top of separator, is rotated by scraper plate and dross is discharged.
4. the sludge condensation separator according to claim 1 for treating mine drainage, it is characterised in that: Reaction-diffusion terms
Cylinder is vertically arranged in separator interior, and bottom is toy trumpet mouth, and top is typhon mouth.
5. the sludge condensation separator according to claim 4 for treating mine drainage, it is characterised in that: toy trumpet mouth
Height ratio with typhon mouth is 1:3-4.
6. the sludge condensation separator according to claim 4 for treating mine drainage, it is characterised in that: Reaction-diffusion terms
Two bell-mouthed oblique angles of cylinder are 15 ° -75 °.
7. the sludge condensation separator according to claim 5 for treating mine drainage, it is characterised in that: toy trumpet mouth
Oblique angle be 43-48 °, the oblique angle of typhon mouth is 58-62 °.
8. the sludge condensation separator according to claim 1 for treating mine drainage, it is characterised in that: point
From between device lower right-hand side and outer casing inner wall be equipped with clear liquid baffle (15), clear liquid baffle by shell separator on the right side of between
Space separates, and the space between adjustable effluent weir and clear liquid baffle is clear liquid collecting region (17), and clear liquid drainage (6) and clear liquid are kept off
Plate is adjacent and the side of being provided thereon.
9. the sludge condensation separator according to claim 1 for treating mine drainage, it is characterised in that: separator is left
Be equipped with dross sedimentation plate (16) being inclined outwardly below side bottom between outer casing inner wall, dross settle plate by shell with separate
Space between on the left of device separates, and dross outlet (7) and dross settle that plate is adjacent and the side of being provided thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910278003.4A CN109879467B (en) | 2016-06-12 | 2016-06-12 | Sludge concentration and separation device for mine water treatment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610406098.XA CN106044913B (en) | 2016-06-12 | 2016-06-12 | One kind separation method of sludge condensation containing coal and device |
| CN201910278003.4A CN109879467B (en) | 2016-06-12 | 2016-06-12 | Sludge concentration and separation device for mine water treatment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610406098.XA Division CN106044913B (en) | 2016-06-12 | 2016-06-12 | One kind separation method of sludge condensation containing coal and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109879467A true CN109879467A (en) | 2019-06-14 |
| CN109879467B CN109879467B (en) | 2021-12-24 |
Family
ID=57169883
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610406098.XA Active CN106044913B (en) | 2016-06-12 | 2016-06-12 | One kind separation method of sludge condensation containing coal and device |
| CN201910278003.4A Active CN109879467B (en) | 2016-06-12 | 2016-06-12 | Sludge concentration and separation device for mine water treatment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610406098.XA Active CN106044913B (en) | 2016-06-12 | 2016-06-12 | One kind separation method of sludge condensation containing coal and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106044913B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399795A (en) * | 2017-08-30 | 2017-11-28 | 中国恩菲工程技术有限公司 | Mine down-hole continuous drainage sludge drainage system |
| CN108178492B (en) * | 2018-01-15 | 2020-11-06 | 煤科集团杭州环保研究院有限公司 | Municipal domestic sludge air flotation concentration treatment equipment and method |
| CN110759427A (en) * | 2019-11-29 | 2020-02-07 | 中明科学仪器设备(苏州)股份有限公司 | Multiphase separator for sewage treatment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759243A (en) * | 2010-01-15 | 2010-06-30 | 江苏清溢环保设备有限公司 | Vertical-type air-flotation device |
| CN203128252U (en) * | 2013-03-20 | 2013-08-14 | 福建科航环保科技有限公司 | Oil-water separator with cavitation aerator |
| CN103803774A (en) * | 2014-02-26 | 2014-05-21 | 江苏理工学院 | Sludge thickening device and sludge treatment method thereof |
| CN203820565U (en) * | 2014-01-21 | 2014-09-10 | 碧海舟（北京）石油化工设备有限公司 | Oily sewage air floatation suspension layer filtering device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002035780A (en) * | 2000-07-24 | 2002-02-05 | Hitachi Plant Eng & Constr Co Ltd | Method for improving sludge sedimentation, apparatus therefor, and sludge treatment apparatus |
| CN204079743U (en) * | 2014-08-11 | 2015-01-07 | 煤科集团杭州环保研究院有限公司 | A kind of Technique of Coal Mine Drainage sludge treatment equipment |
-
2016
- 2016-06-12 CN CN201610406098.XA patent/CN106044913B/en active Active
- 2016-06-12 CN CN201910278003.4A patent/CN109879467B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759243A (en) * | 2010-01-15 | 2010-06-30 | 江苏清溢环保设备有限公司 | Vertical-type air-flotation device |
| CN203128252U (en) * | 2013-03-20 | 2013-08-14 | 福建科航环保科技有限公司 | Oil-water separator with cavitation aerator |
| CN203820565U (en) * | 2014-01-21 | 2014-09-10 | 碧海舟（北京）石油化工设备有限公司 | Oily sewage air floatation suspension layer filtering device |
| CN103803774A (en) * | 2014-02-26 | 2014-05-21 | 江苏理工学院 | Sludge thickening device and sludge treatment method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109879467B (en) | 2021-12-24 |
| CN106044913B (en) | 2019-05-14 |
| CN106044913A (en) | 2016-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103979706B (en) | A kind of outer circulation type pressurized dissolved air flotation-water separating membrane treatment process and device | |
| CN102267734B (en) | Enclosed circulating air floatation method and apparatus | |
| CN213803071U (en) | Flocculation reactor and sewage treatment equipment | |
| CN207748958U (en) | A kind of industrial wastewater treatment system | |
| CN106044913B (en) | One kind separation method of sludge condensation containing coal and device | |
| CN209537204U (en) | Magnetic loads water treatment facilities | |
| CN109052558A (en) | A kind of cyclone air-flotation separator | |
| CN102755768A (en) | Sludge treatment device used at pressure type pumping and drainage outlet | |
| CN204079711U (en) | A kind of regeneration paper mill wastewater recycling and processing device | |
| CN203768063U (en) | Novel air flotation equipment with high air dissolving efficiency | |
| CN206395925U (en) | Deliming anaerobic reactor | |
| CN108675566A (en) | A kind of small-sized integrated countryside sewage treatment equipment of double iris types | |
| CN211813962U (en) | High-density clarification tank | |
| CN105329994A (en) | Water treatment clarification | |
| CN103030229B (en) | Oily wastewater treatment device and treatment method in steel industry | |
| CN107128995A (en) | It is a kind of can continuous sediment outflow air floatation machine | |
| CN205740692U (en) | A kind of device realized containing coal sludge circulation concentrating and separating | |
| CN104030489B (en) | The processing method of flushing water in PVC paste resin production | |
| CN207525100U (en) | A kind of drum type brake integrated sewage treating apparatus | |
| CN106966455B (en) | Telescopic flotation tank | |
| CN205840846U (en) | Drilling mud does not land processing means | |
| CN201495451U (en) | Paper-making medium wastewater processing device | |
| CN109293079A (en) | A kind of low energy consumption aeration cycle clarifying basin | |
| CN211620172U (en) | High-density air flotation sedimentation tank | |
| CN204714550U (en) | Oily water treatment micro-nano air flotation device |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 311201 Hangzhou, Xiaoshan District, Zhejiang Province Road No. 288 show Applicant after: Hangzhou Research Institute Co.,Ltd. Address before: 311201 Hangzhou, Xiaoshan District, Zhejiang Province Road No. 288 show Applicant before: CHINA COAL TECHNOLOGY & ENGINEERING GROUP HANGZHOU ENVIRONMENTAL PROTECTION INSTITUTE Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |