CN109231589A - A kind of self-loopa negative pressure flotation sewage disposal system - Google Patents
A kind of self-loopa negative pressure flotation sewage disposal system Download PDFInfo
- Publication number
- CN109231589A CN109231589A CN201811395834.1A CN201811395834A CN109231589A CN 109231589 A CN109231589 A CN 109231589A CN 201811395834 A CN201811395834 A CN 201811395834A CN 109231589 A CN109231589 A CN 109231589A
- Authority
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- China
- Prior art keywords
- sewage
- pipe
- negative pressure
- connect
- floatation cell
- 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.)
- Pending
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 76
- 238000005188 flotation Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 230000006698 induction Effects 0.000 claims abstract description 16
- 238000010992 reflux Methods 0.000 claims abstract description 16
- 238000002203 pretreatment Methods 0.000 claims abstract description 13
- 230000008676 import Effects 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 7
- 239000013589 supplement Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 13
- 238000007790 scraping Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 238000011282 treatment Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000007667 floating Methods 0.000 description 5
- 238000010943 off-gassing Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005201 scrubbing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 239000013043 chemical agent Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- -1 flocculation aid Chemical compound 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009300 dissolved air flotation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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
-
- 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
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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)
Abstract
The present invention discloses a kind of self-loopa negative pressure flotation sewage disposal system, including sewage pre-treatment component, floatation cell, water ejector and recirculation water feed pump；Sewage is mixed with chemical reagent and is delivered to floatation cell by the sewage pre-treatment component, sewage induction pipe, return pipe, reflux dissolved air water inlet tube and air suction inlet are set on the floatation cell, the water ejector is provided with setting injection entrance, jet exit, negative pressure suction inlet and supplement air intake；The outlet of the pre-treatment component is connect with sewage induction pipe, the return pipe is connect with the import of recirculation water feed pump, the outlet of the recirculation water feed pump is connect with injection entrance, and the jet exit is connect with reflux dissolved air water inlet tube, and the air suction inlet is connect with negative pressure suction inlet.The configuration of the present invention is simple, low energy consumption, is beneficial to energy conservation environmental protection.
Description
Technical field
The present invention relates to Industrial Waste Water Treatments fields, and in particular to a kind of self-loopa negative pressure flotation sewage disposal system.
Background technique
Dissolved-air Floatation Process of Partial is then to make these micro-bubbles and water by the way that micro-bubble is injected or produced in waste water
It is adhered on wadding body after middle wadding body collision, so that global density is less than water and floats, finally floats on liquid surface and scraped slag
Outside device discharge system.Dissolved air floatation is different according to the principle that it generates bubble, and can be divided into pressure air-dissolving method and the molten gas of vacuum
Method.Pressure air-dissolving need to dissolve in a large amount of air under high pressure, when pressure is reduced to low pressure or normal pressure suddenly with micro- gas
The form of bubble is released, to carry out the air-flotation process of waste water.
The molten gas process of pressure air-dissolving method in the prior art needs to carry out in case of high pressures, and energy loss is big, no
Conducive to energy conservation and environmental protection.
The molten gas process of vacuum air soluble method is carried out under normal pressure or lower pressure, and when outgassing then under condition of negative pressure
It carries out.Vacuum air soluble method does not need strong pressurizing compared to pressure air-dissolving method, and energy consumption is lower than pressurized dissolved air flotation.
Summary of the invention
Goal of the invention: present invention aims in view of the deficiencies of the prior art, provide a kind of self-loopa negative pressure flotation sewage
Processing system, the present invention are to carry out molten gas using vacuum air soluble method, and molten gas process can carry out under normal pressure or lower pressure, and
It is then carried out under the conditions of tiny structure when outgassing, low energy consumption, structure is simple, is beneficial to energy conservation environmental protection.
Technical solution: a kind of self-loopa negative pressure flotation sewage disposal system of the present invention, including sewage pre-treatment component,
Floatation cell, water ejector and recirculation water feed pump；Sewage is mixed and is delivered to chemical reagent by the sewage pre-treatment component
Sewage induction pipe, return pipe, reflux dissolved air water inlet tube and air suction inlet, the water are arranged on the floatation cell for floatation cell
Injector is provided with setting injection entrance, jet exit, negative pressure suction inlet and supplement air intake；The pre-treatment component goes out
Mouth is connect with sewage induction pipe, and the return pipe is connect with the import of recirculation water feed pump, the outlet of the recirculation water feed pump
It is connect with injection entrance, the jet exit is connect with reflux dissolved air water inlet tube, the air suction inlet and negative pressure suction inlet
Connection.
Further preferably technical solution is the present invention, and the floatation cell includes the overflow Rinsing Area for being set to tank body top
With the dross collecting box for collecting dross；The overflow Rinsing Area is the groove body along one circle of tank body excircle arrangement, described to overflow
It flows Rinsing Area and is equipped with treated water outlet pipe and return pipe, the overflow Rinsing Area, which is closed on, is also placed with overflow gear along tank body inner ring
Plate, the dross collecting box are set to the inside of tank body, and the dross collecting box is equipped with the dross outlet for dross to be discharged.
Preferably, agitating device is provided at the tank body center of the floatation cell；The upper end of the agitating device and stirring
Motor connection, upper part are equipped with Slag Scraping Device, and the Slag Scraping Device is located at the upper port of dross collecting box, under the agitating device
Portion is equipped with mud scraper, positioned at the tank base of floatation cell.
Preferably, the tank body of the floatation cell is provided centrally with central feeding cylinder, and the central feeding cylinder is connected with set
Pipe；The concetrated pipe inner end connects central feeding cylinder, and it is external that outer end extends to floatation cell；The concetrated pipe outer end is connected with dirt
Water inlet pipe and reflux dissolved air water inlet tube；The sewage induction pipe is connect with sewage charging pump discharge.
Preferably, the top of the tank of the floatation cell is respectively equipped with pressure gauge, blow-down pipe and air suction inlet；The air
The connection of the negative pressure suction inlet of suction inlet and water ejector, the tank base of the floatation cell are equipped with the sewage pipe for blowdown.
Preferably, the pre-treatment component includes mixer, chemicals addition control tank and sewage feed pump；Sewage and chemistry are tried
Agent is added in mixer and is mixed, and the outlet of the mixer is connect with the import of chemicals addition control tank, the chemicals addition control tank
Outlet connect with the import of sewage feed pump, outlet and the sewage induction pipe of the floatation cell of the sewage feed pump connect
It connects.
The operation principle of the present invention is that:
Chemical agent and treatment sewage are added into mixer by chemicals medicine system, chemical reagent is preferably tri-chlorination
Iron, flocculation aid, magnesium sulfate and sodium hydroxide mix chemical agent and treatment sewage in mixer, mixed sewage
After handling by chemicals addition control tank, floatation cell is delivered to by sewage induction pipe by sewage feed pump；Partial reflux in floatation cell
Purified water is back to recirculation water feed pump by return pipe, and back-flow scrubbing water is entered water by spraying entrance by recirculation water feed pump
Injector is sprayed；Water ejector generates air in micro-vacuum area sucking floatation cell and outer due to the jet-action of water
Boundary's air, for floatation cell since the swabbing action of water ejector generates tiny structure, it is net that the air of water ejector sucking is dissolved in reflux
Change and mix with treatment sewage reentering floatation cell in water, under floatation cell condition of negative pressure, the air outgassing of dissolution is produced
Raw micro air bubble floats with wadding body, oil slick collision adherency in water, finally floats on sewage surface, entered by Slag Scraping Device cleaning floating
Slag collecting box passes through dross outlet discharge system.
The utility model has the advantages that (1) present invention carries out injection dispersion to back-flow scrubbing water by the way that water ejector is arranged, water ejector by
Negative pressure is formed in injector in jet-action, sucks air and part outside air in floatation cell, the air of sucking can be high
Effect is dissolved in back-flow scrubbing water, is mixed into floatation cell with treatment sewage and is carried out FLOTATION SEPARATION again；Simultaneously because water
The swabbing action of injector makes floatation cell form tiny structure；Into the reflux dissolved air water of floatation cell and sewage to be processed negative
Outgassing under the conditions of pressure generates wadding body in micro air bubble, with water, oil slick collision adherency floating, finally floats on sewage surface, scraped
Slag machine is cleared up into dross collecting box, and the final discharge system of dross outlet is passed through.Whole system structure of the invention is simple, energy consumption
It is low, cost of sewage disposal is effectively reduced, realizes the quick separating of the dregs of fat.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention；
Fig. 2 is the top view of floatation cell of the present invention.
Wherein, 1, floatation cell, 101, return pipe, 102, central feeding cylinder, 103, mud scraper, 104, overflow Rinsing Area,
105, Slag Scraping Device, 106, treated water outlet pipe, 107, sewage pipe, 108, blow-down pipe, 109, agitating device, 110, pressure gauge,
111, dross collecting box, 112, overflow baffle, 113, dregs of fat outlet, 114, sewage induction pipe, 115, reflux dissolved air water import
Pipe, 116, stirring motor, 117, concetrated pipe, 118, air suction inlet, 2, mixer, 3, chemicals addition control tank, 4, sewage feed pump,
5, recirculation water feed pump, 6, water ejector, 601, injection entrance, 602, jet exit, 603, negative pressure suction inlet, 604, air enters
Mouthful.
Specific embodiment
Technical solution of the present invention is described in detail below by attached drawing, but protection scope of the present invention is not limited to
The embodiment.
Embodiment: a kind of self-loopa negative pressure flotation sewage disposal system, including the spray of sewage pre-treatment component, floatation cell 1, water
Emitter 6 and recirculation water feed pump 5；Pre-treatment component includes mixer 2, chemicals addition control tank 3 and sewage feed pump 4, on floatation cell 1
Sewage induction pipe 114, return pipe 101, reflux dissolved air water inlet tube 115 and air suction inlet 118 are set, and water ejector 6 is arranged
There are setting injection entrance 601, jet exit 602, negative pressure suction inlet 603 and supplement air intake 604；By sewage and chemical reagent
It is added in mixer 2 and is mixed, the outlet of mixer 2 is connect with the import of chemicals addition control tank 3, the outlet of chemicals addition control tank 3
It is connect with the import of sewage feed pump 4, the outlet of sewage feed pump 4 is connect with the sewage induction pipe 114 of floatation cell 1；Return pipe
101 connect with the import of recirculation water feed pump 5, and the outlet of recirculation water feed pump 5 is connect with injection entrance 601, jet exit 602
It is connect with reflux dissolved air water inlet tube 115, air suction inlet 118 is connect with negative pressure suction inlet 603.
Further preferably technical solution is the present invention, and floatation cell 1 includes the overflow Rinsing Area 104 for being set to tank body top
With the dross collecting box 111 for collecting dross；Overflow Rinsing Area 104 is the groove body along one circle of tank body excircle arrangement, overflow
Rinsing Area 104 be equipped with treated water outlet pipe 106 and return pipe 101, overflow Rinsing Area 104 close on also be placed with along tank body inner ring it is excessive
Baffle 112 is flowed, dross collecting box 111 is set to the inside of tank body, and dross collecting box 111 is equipped with to go out for the dross of dross to be discharged
Mouth pipe 113；
The tank body of floatation cell 1 is provided centrally with central feeding cylinder 102, and central feeding cylinder 102 is connected with concetrated pipe 117；Concetrated pipe
117 inner ends connect central feeding cylinder 102, and it is external that outer end extends to floatation cell 1；117 outer end of concetrated pipe is connected with wastewater inlet
Pipe 114 and reflux dissolved air water inlet tube 115；Sewage induction pipe 114 and the outlet of sewage feed pump 4 connect；The tank body top of floatation cell 1
Portion is respectively equipped with pressure gauge 110, blow-down pipe 108 and air suction inlet 118；The negative pressure of air suction inlet 118 and water ejector 6 is inhaled
Entrance 603 connects；
Agitating device 109 is provided at the tank body center of floatation cell 1；The upper end of agitating device 109 is connect with stirring motor 116,
Upper part is equipped with Slag Scraping Device 105, and Slag Scraping Device 105 is located at the upper port of dross collecting box 111, the dross of floating is scraped into floating
The inside of slag collecting box 111, it is using dross outlet 113 that dross drain tank is external；109 lower part of agitating device is equipped with and scrapes mud
Rake 103, positioned at the tank base of floatation cell 1, the tank base of floatation cell 1 is equipped with the sewage pipe 107 for blowdown, mud scraper
103 pass through the body refuse for sinking to 1 bottom of floatation cell outside 107 drain tank body of sewage pipe.
The operation principle of the present invention is that:
Chemical agent and treatment sewage are added into mixer 2 by chemicals medicine system, chemical reagent is preferably trichlorine
Change iron, flocculation aid, magnesium sulfate and sodium hydroxide, mixes chemical agent and treatment sewage in mixer 2, mixed dirt
After water is handled by chemicals addition control tank 3, floatation cell 1 is delivered to by sewage induction pipe 114 by sewage feed pump 4；In floatation cell 1
Partial reflux purified water is back to recirculation water feed pump 5 by return pipe 101, and recirculation water feed pump 5 passes through back-flow scrubbing water
Injection entrance 601 is sprayed into water ejector 6；It is floating to generate the sucking of micro-vacuum area due to the jet-action of water for water ejector 6
The air and outside air in tank 1 are selected, floatation cell 1 generates tiny structure, water ejector 6 due to the swabbing action of water ejector 6
The air of sucking, which is dissolved in back-flow scrubbing water mix with treatment sewage, reenters floatation cell 1, in 1 negative pressure of floatation cell
Under the conditions of, the air outgassing of dissolution generates wadding body in micro air bubble, with water, oil slick collision adherency is floated, and finally floats on sewage
Surface enters dross collecting box 111 by the cleaning of Slag Scraping Device 105, passes through 113 discharge system of dross outlet.
As described above, must not be explained although the present invention has been indicated and described referring to specific preferred embodiment
For the limitation to invention itself.It without prejudice to the spirit and scope of the invention as defined in the appended claims, can be right
Various changes can be made in the form and details for it.
Claims (6)
1. a kind of self-loopa negative pressure flotation sewage disposal system, it is characterised in that: including sewage pre-treatment component, floatation cell, water
Injector and recirculation water feed pump；Sewage is mixed with chemical reagent and is delivered to floatation cell, institute by the sewage pre-treatment component
It states and sewage induction pipe, return pipe, reflux dissolved air water inlet tube and air suction inlet is set on floatation cell, the water ejector setting
There are setting injection entrance, jet exit, negative pressure suction inlet and supplement air intake；The outlet of the pre-treatment component and sewage into
Mouth pipe connection, the return pipe are connect with the import of recirculation water feed pump, the outlet of the recirculation water feed pump and injection entrance
Connection, the jet exit are connect with reflux dissolved air water inlet tube, and the air suction inlet is connect with negative pressure suction inlet.
2. a kind of self-loopa negative pressure flotation sewage disposal system according to claim 1, it is characterised in that: the floatation cell
Dross collecting box including being set to the overflow Rinsing Area on tank body top and for collecting dross；The overflow Rinsing Area is along tank
The groove body of external one circle of circumference arrangement, the overflow Rinsing Area are equipped with treated water outlet pipe and return pipe, the overflow Rinsing Area
It closes on and is also placed with overflow baffle along tank body inner ring, the dross collecting box is on the inside of tank body, the dross collecting box
Equipped with the dross outlet for dross to be discharged.
3. a kind of self-loopa negative pressure flotation sewage disposal system according to claim 2, it is characterised in that: the floatation cell
Tank body center at be provided with agitating device；The upper end of the agitating device is connect with stirring motor, and upper part is equipped with Slag Scraping Device,
The Slag Scraping Device is located at the upper port of dross collecting box, and the agitating device lower part is equipped with mud scraper, positioned at floatation cell
Tank base.
4. a kind of self-loopa negative pressure flotation sewage disposal system according to claim 1, it is characterised in that: the floatation cell
Tank body be provided centrally with central feeding cylinder, the central feeding cylinder is connected with concetrated pipe；The concetrated pipe inner end connection center
Feeding cylinder, it is external that outer end extends to floatation cell；The concetrated pipe outer end is connected with sewage induction pipe and reflux dissolved air water import
Pipe；The sewage induction pipe is connect with sewage charging pump discharge.
5. a kind of self-loopa negative pressure flotation sewage disposal system according to claim 1, it is characterised in that: the floatation cell
Top of the tank be respectively equipped with pressure gauge, blow-down pipe and air suction inlet；The negative pressure of the air suction inlet and water ejector is inhaled
Entrance connection, the tank base of the floatation cell are equipped with the sewage pipe for blowdown.
6. a kind of self-loopa negative pressure flotation sewage disposal system according to claim 1, it is characterised in that: the pre-treatment
Component includes mixer, chemicals addition control tank and sewage feed pump；Sewage is added in mixer with chemical reagent and is mixed, institute
The outlet for stating mixer is connect with the import of chemicals addition control tank, and the outlet of the chemicals addition control tank and the import of sewage feed pump connect
It connects, the outlet of the sewage feed pump is connect with the sewage induction pipe of the floatation cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811395834.1A CN109231589A (en) | 2018-11-22 | 2018-11-22 | A kind of self-loopa negative pressure flotation sewage disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811395834.1A CN109231589A (en) | 2018-11-22 | 2018-11-22 | A kind of self-loopa negative pressure flotation sewage disposal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109231589A true CN109231589A (en) | 2019-01-18 |
Family
ID=65075614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811395834.1A Pending CN109231589A (en) | 2018-11-22 | 2018-11-22 | A kind of self-loopa negative pressure flotation sewage disposal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109231589A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498936A (en) * | 2020-05-29 | 2020-08-07 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Flotation cabinet device with multi-stage flow guide and overflow structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210092A (en) * | 1998-09-21 | 1999-03-10 | 孙光跃 | Water treatment process by jet gas soluted floatation |
| CN202152290U (en) * | 2011-07-08 | 2012-02-29 | 蓝星环境工程有限公司 | Pressurized dissolved-air floating system |
| CN102951714A (en) * | 2012-12-03 | 2013-03-06 | 杭州太一化工科技有限公司 | Gas dissolving floatation machine |
| CN105855067A (en) * | 2016-05-30 | 2016-08-17 | 广东上典环境保护工程有限公司 | Novel power-free flotation machine |
| CN209383545U (en) * | 2018-11-22 | 2019-09-13 | 中建安装集团有限公司 | A kind of self-loopa negative pressure flotation sewage disposal system |
-
2018
- 2018-11-22 CN CN201811395834.1A patent/CN109231589A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210092A (en) * | 1998-09-21 | 1999-03-10 | 孙光跃 | Water treatment process by jet gas soluted floatation |
| CN202152290U (en) * | 2011-07-08 | 2012-02-29 | 蓝星环境工程有限公司 | Pressurized dissolved-air floating system |
| CN102951714A (en) * | 2012-12-03 | 2013-03-06 | 杭州太一化工科技有限公司 | Gas dissolving floatation machine |
| CN105855067A (en) * | 2016-05-30 | 2016-08-17 | 广东上典环境保护工程有限公司 | Novel power-free flotation machine |
| CN209383545U (en) * | 2018-11-22 | 2019-09-13 | 中建安装集团有限公司 | A kind of self-loopa negative pressure flotation sewage disposal system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498936A (en) * | 2020-05-29 | 2020-08-07 | 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) | Flotation cabinet device with multi-stage flow guide and overflow structure |
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Country or region after: China Address after: 210023 No. 6 Wenlan Road, Xianlin University City, Qixia District, Nanjing City, Jiangsu Province Applicant after: CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP Co.,Ltd. Address before: 210023 No. 6 Wenlan Road, Xianlin University City, Qixia District, Nanjing City, Jiangsu Province Applicant before: China Construction Installation Engineering Co.,Ltd. Country or region before: China |