CN209383545U - 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
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- CN209383545U CN209383545U CN201821929351.0U CN201821929351U CN209383545U CN 209383545 U CN209383545 U CN 209383545U CN 201821929351 U CN201821929351 U CN 201821929351U CN 209383545 U CN209383545 U CN 209383545U
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Abstract
The utility model 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 utility model structure is simple, and low energy consumption, is beneficial to energy conservation environmental protection.
Description
Technical field
The utility model relates to Industrial Waste Water Treatments fields, and in particular to a kind of self-loopa negative pressure flotation sewage treatment system
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.
Utility model content
Purpose of utility model: the utility model aim is in view of the deficiencies of the prior art, to provide a kind of self-loopa negative pressure
Flotation sewage disposal system, the utility model are to carry out molten gas using vacuum air soluble method, and molten gas process can be in normal pressure or low pressure
Under the conditions of carry out, and 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 described in the utility model, including sewage pre-treatment
Component, floatation cell, water ejector and recirculation water feed pump；The sewage pre-treatment component mixes sewage and defeated with chemical reagent
It send to floatation cell, sewage induction pipe, return pipe, reflux dissolved air water inlet tube and air suction inlet, institute is set on the floatation cell
It states water ejector and is provided with setting injection entrance, jet exit, negative pressure suction inlet and supplement air intake；The pre-treatment component
Outlet connect with sewage induction pipe, the return pipe is connect with the import of recirculation water feed pump, the recirculation water feed pump
Outlet is connect with injection entrance, and the jet exit is connect with reflux dissolved air water inlet tube, and the air suction inlet and negative pressure are inhaled
Entrance connection.
Further preferably technical solution is the utility model, the floatation cell include be set to tank body top overflow it is clear
Sink and dross collecting box for collecting dross；The overflow Rinsing Area is the groove body along one circle of tank body excircle arrangement, institute
Overflow Rinsing Area is stated equipped with treated water outlet pipe and return pipe, the overflow Rinsing Area, which is closed on, is also placed with overflow along tank body inner ring
Baffle, the dross collecting box are set to the inside of tank body, and the dross collecting box is equipped with the dross for dross to be discharged and exports
Pipe.
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 working principle of the utility model are as follows:
Chemical agent and treatment sewage are added into mixer by chemicals medicine system, chemical reagent is preferably three
Iron chloride, flocculation aid, magnesium sulfate and sodium hydroxide mix chemical agent and treatment sewage in mixer, mixed
After sewage is handled by chemicals addition control tank, floatation cell is delivered to by sewage induction pipe by sewage feed pump；Part in floatation cell
Back-flow scrubbing water is back to recirculation water feed pump by return pipe, recirculation water feed pump by back-flow scrubbing water by injection entrance into
Enter water ejector to be sprayed；Water ejector due to water jet-action, generate micro-vacuum area sucking floatation cell in air with
And outside air, since the swabbing action of water ejector generates tiny structure, the air of water ejector sucking is dissolved in back floatation cell
Mix with treatment sewage reentering floatation cell in stream purified water, under floatation cell condition of negative pressure, the air of dissolution is released
Gas generate micro air bubble, with water in wadding body, oil slick collision adherency float, finally float on sewage surface, by Slag Scraping Device clear up into
Enter dross collecting box, passes through dross outlet discharge system.
The utility model has the advantages that (1) the utility model carries out injection dispersion, water injection to back-flow scrubbing water by the way that water ejector is arranged
Device sucks air and part outside air in floatation cell, the air of sucking can since jet-action forms negative pressure in injector
To be efficiently dissolved in back-flow scrubbing water, floatation cell is mixed into treatment sewage and carries out FLOTATION SEPARATION again；While by
In the swabbing action of water ejector, floatation cell is made to form tiny structure；Into the reflux dissolved air water and sewage to be processed of floatation cell
The outgassing under condition of negative pressure generates wadding body in micro air bubble, with water, oil slick collision adherency floating, finally floats on sewage surface,
It is cleared up by Slag Scraping Device into dross collecting box, passes through the final discharge system of dross outlet.The whole system structure of the utility model
Simply, low energy consumption, effectively reduces cost of sewage disposal, realizes the quick separating of the dregs of fat.
Detailed description of the invention
Fig. 1 is the system structure diagram of the utility model；
Fig. 2 is the top view of floatation cell described in the utility model.
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 solutions of the utility model are described in detail below by attached drawing, but the protection scope of the utility model
It 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 utility model, and floatation cell 1 includes the overflow clear water for being set to tank body top
Slot 104 and 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 is equipped with treated water outlet pipe 106 and return pipe 101, and overflow Rinsing Area 104 is closed on also arranges along tank body inner ring
There is overflow baffle 112, dross collecting box 111 is set to the inside of tank body, and dross collecting box 111 is equipped with for the floating of dross to be discharged
Slag outlet 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；Collection
It closes 117 inner end of pipe and connects central feeding cylinder 102, it is external that outer end extends to floatation cell 1；117 outer end of concetrated pipe is connected with sewage
Inlet tube 114 and reflux dissolved air water inlet tube 115；Sewage induction pipe 114 and the outlet of sewage feed pump 4 connect；The tank of floatation cell 1
Pressure gauge 110, blow-down pipe 108 and air suction inlet 118 are respectively equipped at the top of body；Air suction inlet 118 is negative with water ejector 6
Suction inlet 603 is pressed to connect；
Agitating device 109 is provided at the tank body center of floatation cell 1；The upper end of agitating device 109 and stirring motor 116 connect
It connects, 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
The inside for entering dross collecting box 111, it is using dross outlet 113 that dross drain tank is external；109 lower part of agitating device is equipped with
Mud scraper 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, scrapes mud
Rake 103 passes through the body refuse for sinking to 1 bottom of floatation cell outside 107 drain tank body of sewage pipe.
The working principle of the utility model are as follows:
Chemical agent and treatment sewage are added into mixer 2 by chemicals medicine system, chemical reagent is preferably
Ferric trichloride, flocculation aid, magnesium sulfate and sodium hydroxide mix chemical agent and treatment sewage in mixer 2, after mixing
Sewage handled by chemicals addition control tank 3 after, floatation cell 1 is delivered to by sewage induction pipe 114 by sewage feed pump 4；Flotation
The back-flow scrubbing water in part is back to recirculation water feed pump 5 by return pipe 101 in tank 1, and recirculation water feed pump 5 is by back-flow scrubbing water
It is sprayed by injection entrance 601 into water ejector 6；Water ejector 6 is generated micro-vacuum area and is inhaled due to the jet-action of water
Enter the air and outside air in floatation cell 1, floatation cell 1 generates tiny structure, water injection due to the swabbing action of water ejector 6
The air that device 6 sucks, which is dissolved in back-flow scrubbing water mix with treatment sewage, reenters floatation cell 1, in floatation cell 1
Under condition of negative pressure, 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, although the utility model has been indicated and described referring to specific preferred embodiment, it must not
It is construed to the limitation to the utility model itself.In the spirit and scope for not departing from the utility model that appended claims define
Under the premise of, it can various changes can be made in the form and details to 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821929351.0U CN209383545U (en) | 2018-11-22 | 2018-11-22 | A kind of self-loopa negative pressure flotation sewage disposal system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821929351.0U CN209383545U (en) | 2018-11-22 | 2018-11-22 | A kind of self-loopa negative pressure flotation sewage disposal system |
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| CN209383545U true CN209383545U (en) | 2019-09-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231589A (en) * | 2018-11-22 | 2019-01-18 | 中建安装工程有限公司 | A kind of self-loopa negative pressure flotation sewage disposal system |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231589A (en) * | 2018-11-22 | 2019-01-18 | 中建安装工程有限公司 | A kind of self-loopa negative pressure flotation sewage disposal system |
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