CN207726765U - A kind of dissolved air flotation device for sewage disposal - Google Patents
A kind of dissolved air flotation device for sewage disposal Download PDFInfo
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- CN207726765U CN207726765U CN201721209432.9U CN201721209432U CN207726765U CN 207726765 U CN207726765 U CN 207726765U CN 201721209432 U CN201721209432 U CN 201721209432U CN 207726765 U CN207726765 U CN 207726765U
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Abstract
A kind of dissolved air flotation device for sewage disposal, including：Air compressor, molten air drain, force (forcing) pump, air flotation slot, slag scraping mechanism.Take air flotation slot that the residue in the sewage after reaction is gathered in the top of air flotation slot, the Slag Scraping Device in air flotation slot automatically disposes residue, effectively removes the residue in sewage, completes the comprehensive treatment to sewage；Air is compressed to connect from trend air flotation slot with molten air drain and is inflated, avoids and in addition air flotation slot is individually inflated using pump, reduce circuit line and electrical equipment, the utility model device is compact, simple in structure, easy to operate, and power consumption is low.
Description
Technical field
The utility model belongs to field of sewage treatment, and in particular to a kind of dissolved air flotation device for sewage disposal.
Background technology
Water environment is mainly made of surface water environment and groundwater environment two parts.Surface water environment include river, lake,
Reservoir, ocean, pond, marsh, glacier etc., groundwater environment include spring, phreatic water, deep phreatic water etc..Water environment
Be one of the fundamental of composing environment, be the important place that human society is depended on for existence and development, and by Human impact and
Destroy the field of most serious.The pollution and destruction of water environment have become one of main environmental problem in the world today, thus for
The big emphasis of sewage being effectively treated as Environmental Studies.
Bubble-floating Method in air supporting, that is, water process is the micro-bubble for forming high degree of dispersion in water, is adhered to hydrophobic in sewage
Solid or liquid particles, formed water-gas-particle three-phase mixed system, particle adherency bubble after form suspended matter, the suspension
Object density floats less than water, forms scum layer and is stripped off.Sewage treatment process apparatus structure is not compact at present, piping connection compared with
It is more, it takes up a large area, power consumption is larger, and maintenance management is inconvenient.
Utility model content
In order to solve the above-mentioned technical problem, the utility model proposes a kind of dissolved air flotation device for sewage disposal, packets
It includes：Air compressor, molten air drain, force (forcing) pump, air flotation slot, slag scraping mechanism.Take air flotation slot by the residue in the sewage after reaction
It is gathered in the top of air flotation slot, the Slag Scraping Device in air flotation slot automatically disposes residue, effectively removes the residue in sewage, completes
Comprehensive treatment to sewage；Air is compressed to connect from trend air flotation slot with molten air drain and is inflated, is avoided in addition using pump to gas
Floating trough is individually inflated, and circuit line and electrical equipment are reduced, and the utility model device is compact, simple in structure, easy to operate,
Power consumption is low.
A kind of dissolved air flotation device for sewage disposal, including：Air compressor 1, molten air drain 2, force (forcing) pump 3, air supporting
Slot 4, slag scraping mechanism 5, the force (forcing) pump 3 transport pipeline by sewage and are connect with molten air drain 1, the bottom of the molten air drain 1
Air compressor 1 is connected, and pipeline is transported by sewage and is connect with air flotation slot 4, slag is scraped in the top setting of the air flotation slot 4
The front end of mechanism 5, air flotation slot 4 connects air compressor 1.
Further, base diameter 0.15m~0.25m of the molten air drain 2 is highly 0.4m~0.6m, described
The dissolved-air head of 4 bottom of molten air drain generally uses metal material, is at least one of copper, platinum, stainless steel and titanium, it is preferred that
Pure titanium dissolved-air head is completely anticorrosive in water, is not reacted with sulfide, durable while beautiful.It may further be preferable that
Liquid level gauge and pressure gauge are provided in the molten air drain 2.
Further, it to realize that the air in molten air drain 2 is dissolved in water, need to pass through molten air drain bottom by air compressor 1
The dissolved-air head in portion is filled with a certain amount of air into molten air drain, and air pressure range 0.6MPa~0.8Mpa, the amount of air is by pacifying
It is controlled loaded on the automatic liquid-level controller in molten air drain.
Further, the force (forcing) pump 3 transports pipeline by sewage and is connect with molten air drain 1, will be located in advance by force (forcing) pump 3
Sewage after reason squeezes into molten air drain 2, and the pressure of the force (forcing) pump is 0.3MPa~0.5Mpa, it is preferred that the pressurization
The pressure of the pressure ＜ air compressors 1 of pump 3, for ensureing that compressed air is normally filled with molten air drain 2.
Further, the length of the air flotation slot 4 is 0.8m~1.2m, and width is 0.6m~0.7m, is highly 0.8m
~1.2m, material be styrene (PS), makrolon (PC), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), poly- pair
At least one of ethylene terephthalate (PET), acryl (PMMA), acrylic acid (MMA), stainless steel, it is preferred that because
It is treated sewage for the equipment, the salinity in water is more, so using stainless steel come anticorrosive.
Further, the residue in sewage is mainly suspended in the top of air flotation slot 5 by the air flotation slot 4 by air dissolving system
Portion, therefore it is provided with slag scraping mechanism 5 at the top of air flotation slot 4.The slag scraping mechanism 5 includes Slag Scraping Device, scum board, Slag Scraping Device
Guide rail, the Slag Scraping Device are set on Slag Scraping Device guide rail, and a scum board is vertically arranged in the bottom of Slag Scraping Device, described to scrape slag
Power 0.15kw~0.20kw of machine, linear velocity 1.5m/min~2.5m/min on scraping slag guide rail；The scum board
Length extends in air flotation slot 1cm~2cm on liquid level, it is ensured that scrapes the residue at the top of air flotation slot totally.
It may further be preferable that the air supporting trench bottom connects slurry filter, the residue that slag scraping mechanism is scraped off into
The further filtering of row, and by filtered sewage transport to initial sewage treatment tank, carry out further circulating sewage
Processing is effectively ensured the maximum of water resource and utilizes.
Under normal conditions, the control to air flotation slot air pressure inside is completed by the way that a pump is in addition arranged outside air flotation slot
System, pipeline is more, power consumption is big, is mounted with control valve between the air flotation slot and molten air drain, the sewage before control valve is defeated
Fortune pipeline is connect with air compressor 1, and the pressure for the water that control valve is conveyed into air flotation slot and the pressure of force (forcing) pump are consistent
, it is 0.3MPa~0.5Mpa, automatically adjusts pressure in air flotation slot, ensures the pressure stability in air flotation slot, sewage and gas are complete
It is complete fused, effectively residue in sewage is suspended at the top of air flotation slot, and ensure that sewage residue is suspended in air flotation slot top time
1h~4h.
Using the dissolved air flotation device of sewage disposal as described above, facility compact, simple in structure, easy to operate, power consumption
It measures low.Specifically, taking air flotation slot that the residue in the sewage after reaction is gathered in the top of air flotation slot, slag is scraped in air flotation slot
Machine automatically disposes residue, effectively removes the residue in sewage, completes the comprehensive treatment to sewage；By air compression and molten gas
Slot connection is inflated from trend air flotation slot, is avoided and is in addition individually inflated to air flotation slot using pump, reduces circuit line and electricity
Gas equipment, the utility model device is compact, simple in structure, easy to operate, and power consumption is low.
Description of the drawings：
Fig. 1 is the overall system view of the utility model.
Primary structure number explanation
Following specific implementation mode will further illustrate the utility model in conjunction with above-mentioned attached drawing.
Specific implementation mode
Specific implementation mode 1：
A kind of dissolved air flotation device for sewage disposal, including：Air compressor 1, molten air drain 2, force (forcing) pump 3, air supporting
Slot 4, slag scraping mechanism 5, the force (forcing) pump 3 transport pipeline by sewage and are connect with molten air drain 1, the bottom of the molten air drain 1
Air compressor 1 is connected, and pipeline is transported by sewage and is connect with air flotation slot 4, slag is scraped in the top setting of the air flotation slot 4
The front end of mechanism 5, air flotation slot 4 connects air compressor 1.
The pressure 0.7Mpa of the wherein described air compressor, the pressure 0.4Mpa of force (forcing) pump, sewage transport before air flotation slot
It is mounted with that control valve, control valve control hydraulic pressure 0.4Mpa on pipe, the power of the Slag Scraping Device of slag scraping mechanism is 0.15kw, and linear velocity is
1.5m/min, sewage residue suspension air flotation slot top time 3h.
Specific implementation mode 2：
A kind of dissolved air flotation device for sewage disposal, including：Air compressor 1, molten air drain 2, force (forcing) pump 3, air supporting
Slot 4, slag scraping mechanism 5, the force (forcing) pump 3 transport pipeline by sewage and are connect with molten air drain 1, the bottom of the molten air drain 1
Air compressor 1 is connected, and pipeline is transported by sewage and is connect with air flotation slot 4, slag is scraped in the top setting of the air flotation slot 4
The front end of mechanism 5, air flotation slot 4 connects air compressor 1.
The pressure 0.8Mpa of the wherein described air compressor, the pressure 0.3Mpa of force (forcing) pump, sewage transport before air flotation slot
It is mounted with that control valve, control valve control hydraulic pressure 0.3Mpa on pipe, the power of the Slag Scraping Device of slag scraping mechanism is 0.17kw, and linear velocity is
2m/min, sewage residue suspension air flotation slot top time 3.5h.
Specific implementation mode 3：
A kind of dissolved air flotation device for sewage disposal, including：Air compressor 1, molten air drain 2, force (forcing) pump 3, air supporting
Slot 4, slag scraping mechanism 5, the force (forcing) pump 3 transport pipeline by sewage and are connect with molten air drain 1, the bottom of the molten air drain 1
Air compressor 1 is connected, and pipeline is transported by sewage and is connect with air flotation slot 4, slag is scraped in the top setting of the air flotation slot 4
The front end of mechanism 5, air flotation slot 4 connects air compressor 1.
The pressure 0.7Mpa of the wherein described air compressor, the pressure 0.3Mpa of force (forcing) pump, sewage transport before air flotation slot
It is mounted with that control valve, control valve control hydraulic pressure 0.3Mpa on pipe, the power of the Slag Scraping Device of slag scraping mechanism is 0.18kw, and linear velocity is
2.2m/min, sewage residue suspension air flotation slot top time 3.2h.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (6)
1. a kind of dissolved air flotation device for sewage disposal, including：Air compressor, force (forcing) pump, air flotation slot, is scraped molten air drain
Slag mechanism, the force (forcing) pump transport pipeline by sewage and are connect with molten air drain, and the bottom connection compression of the molten air drain is empty
Mechanism of qi, and pipeline is transported by sewage and is connect with air flotation slot, slag scraping mechanism is arranged in the top of the air flotation slot, air flotation slot
Front end connects air compressor；Liquid level gauge and pressure gauge are provided in the molten air drain；The air supporting trench bottom connection
Slurry filter is further filtered the residue that slag scraping mechanism scrapes off, and by filtered sewage transport to first
The sewage treatment tank of beginning carries out further circulating sewage processing.
2. being used for the dissolved air flotation device of sewage disposal as described in claim 1, it is characterised in that：The molten air drain bottom is set
Dissolved-air head is set, dissolved-air head generally uses metal material, is at least one of copper, platinum, stainless steel and titanium.
3. being used for the dissolved air flotation device of sewage disposal as described in claim 1, it is characterised in that：The air compressor
Air pressure is 0.6MPa~0.8Mpa.
4. being used for the dissolved air flotation device of sewage disposal as described in claim 1, it is characterised in that：The pressure of the force (forcing) pump
Power is 0.3MPa~0.5Mpa.
5. the dissolved air flotation device for sewage disposal as described in any one of Claims 1 to 4, it is characterised in that：Institute
The slag scraping mechanism stated includes Slag Scraping Device, scum board, Slag Scraping Device guide rail, and the Slag Scraping Device is set on Slag Scraping Device guide rail, is being scraped
The bottom of slag machine is vertically arranged a scum board, power 0.15kw~0.20kw of the Slag Scraping Device, the line on scraping slag guide rail
Speed 1.5m/min~2.5m/min；The length of the scum board extends in air flotation slot 1cm~2cm on liquid level, it is ensured that will
Residue at the top of air flotation slot is scraped totally.
6. the dissolved air flotation device for sewage disposal as described in any one of Claims 1 to 4, it is characterised in that：Institute
It is mounted with control valve between the air flotation slot and molten air drain stated, the sewage before control valve transports pipeline and connects with air compressor
It connects, and the pressure for the water that control valve is conveyed into air flotation slot and the pressure of force (forcing) pump are consistent, and are 0.3MPa~0.5Mpa, from
It is dynamic to adjust pressure in air flotation slot, ensure the pressure stability in air flotation slot, sewage and gas are completely fused, effectively by residue in sewage
It is suspended at the top of air flotation slot, and ensures that sewage residue is suspended in air flotation slot top time 1h~4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721209432.9U CN207726765U (en) | 2017-09-20 | 2017-09-20 | A kind of dissolved air flotation device for sewage disposal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721209432.9U CN207726765U (en) | 2017-09-20 | 2017-09-20 | A kind of dissolved air flotation device for sewage disposal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207726765U true CN207726765U (en) | 2018-08-14 |
Family
ID=63090580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721209432.9U Active CN207726765U (en) | 2017-09-20 | 2017-09-20 | A kind of dissolved air flotation device for sewage disposal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207726765U (en) |
-
2017
- 2017-09-20 CN CN201721209432.9U patent/CN207726765U/en active Active
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