CN211310980U - Deoiling air flotation device for sewage treatment - Google Patents
Deoiling air flotation device for sewage treatment Download PDFInfo
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- CN211310980U CN211310980U CN201922014123.1U CN201922014123U CN211310980U CN 211310980 U CN211310980 U CN 211310980U CN 201922014123 U CN201922014123 U CN 201922014123U CN 211310980 U CN211310980 U CN 211310980U
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Abstract
The utility model discloses a deoiling air-float device for sewage treatment, one end of the raw water pool is connected with a first water pump, the water outlet end of the first water pump is connected with a water tank, one side of the water tank is connected with a reaction chamber, the upper end of the reaction chamber is provided with a motor, the output end of the motor runs through the interior of the reaction chamber and is connected with a stirring device, one side of the reaction chamber is connected with a contact chamber, the upper end of the contact chamber is connected with a dissolved air release pipeline, one side of the interior of the contact chamber is provided with a separation zone, and a slag scraping machine is arranged in the separation zone; the utility model realizes 'static' water inlet and 'static' water outlet, and has very small disturbance to the water body; the gas-solid ratio is larger, so that the lower the concentration of the effluent suspended matters is, the higher the solid content of the scum is; the dissolved air tank is mixed and dissolved with pressurized water under the condition of very violent disturbance, no influence is produced on effluent, the oil skimming and separation efficiency of the oily wastewater in the oil field can reach about 98 percent, and the sludge concentration and separation are superior to those of a conventional sludge concentrator.
Description
Technical Field
The utility model relates to a sewage treatment technical field specifically is a sewage treatment is with air supporting device that deoils.
Background
The sewage treatment and reuse are effective measures for developing and utilizing water resources. The sewage recycling is to treat urban sewage by sewage treatment equipment and then use the urban sewage for non-drinking purposes such as greening, flushing, ornamental water body supplementing and the like. The domestic sewage contains a large amount of grease; directly discharged into rivers to benefit the eutrophication of the formed water body; when the fertilizer is directly used for greening, soil can be polluted, and soil agglomeration is caused, so that the root rot phenomenon of plants occurs.
The existing air flotation oil removal device for sewage treatment has the defect of poor oil removal effect, and therefore the oil removal air flotation device for sewage treatment is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sewage treatment is with air supporting device that deoils to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a deoiling air floatation device for sewage treatment comprises a raw water pool, wherein one end of the raw water pool is connected with a first water pump, the water outlet end of the first water pump is connected with a water tank, one side of the water tank is connected with a reaction chamber, the upper end of the reaction chamber is provided with a motor, the output end of the motor penetrates through the interior of the reaction chamber and is connected with a stirring device, one side of the reaction chamber is connected with a contact chamber, the upper end of the contact chamber is connected with a dissolved air release pipeline, one side of the interior of the contact chamber is provided with a separation zone, a slag scraping machine is arranged in the separation zone, the lower end of the separation zone is connected with a water collecting tank through a water collecting pipe, the lower end of the contact chamber is also connected with a second water pump through a pipeline, one end of the second water pump is connected with a dissolved air tank, the outer connection that pipeline's upper end extends to dissolved gas jar has dissolved gas releaser, the one end and the dissolved gas release pipeline intercommunication of dissolved gas releaser.
As a further optimization of the technical scheme, the stirring device comprises a stirring shaft and an impeller, the stirring shaft is connected to the output end of the motor, and the impeller is arranged at the lower end of the stirring shaft.
As a further optimization of the technical scheme, a slag discharge groove is arranged above the contact chamber.
As a further optimization of the technical scheme, the slag scraper is a chain type slag scraper.
As a further optimization of the technical scheme, one end of the water tank is connected with a first water inlet pipe.
As a further optimization of the technical scheme, one end of the water collecting tank is connected with a water discharging pipe.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model realizes 'static' water inlet and 'static' water outlet, and has very small disturbance to the water body; the gas-solid ratio is larger, so that the lower the concentration of the effluent suspended matters is, the higher the solid content of the scum is; the dissolved air tank is mixed and dissolved with pressurized water under the condition of very violent disturbance, no influence is produced on effluent, the oil skimming and separation efficiency of the oily wastewater in the oil field can reach about 98 percent, and the sludge concentration and separation are superior to those of a conventional sludge concentrator.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the contact chamber of the present invention;
fig. 3 is a schematic view of the connection structure between the contact chamber and the dissolved gas tank of the present invention.
In the figure: 1. a raw water pool; 2. a first water pump; 3. a water tank; 4. a first water inlet pipe; 5. a reaction chamber; 6. A motor; 7. a stirring shaft; 8. an impeller; 9. a dissolved air release conduit; 10. a contacting chamber; 11. a separation zone; 12. a slag scraper; 13. a second water pump; 14. a water collection tank; 16. a drain pipe; 17. a dissolved air tank; 18. An air compressor; 19. a delivery conduit; 20. a slag discharge groove; 21. a dissolved air releaser.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or state relationships based on the orientations or state relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that a designated mechanism or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a deoiling air supporting device for sewage treatment, includes former pond 1, the one end in former pond 1 is connected with first water pump 2, the play water end of first water pump 2 is connected with basin 3, one side of basin 3 is connected with reacting chamber 5, the upper end of reacting chamber 5 is equipped with motor 6, the output of motor 6 runs through the internal connection to reacting chamber 5 has agitating unit, one side of reacting chamber 5 is connected with contact chamber 10, the upper end of contact chamber 10 is connected with dissolves gas release pipeline 9, inside one side of contact chamber 10 is equipped with disengagement zone 11, be equipped with in disengagement zone 11 and scrape sediment machine 12, the lower extreme of disengagement zone 11 has catch basin 14 through the collector pipe connection, the lower extreme of contact chamber 10 still has second water pump 13 through the pipe connection, the one end of second water pump 13 has through the pipe connection and dissolves 17, the one end of dissolving gas pitcher 17 is connected with the air compressor machine 18, the internal connection of dissolved air jar 17 has pipeline 19, the external connection that pipeline 19's upper end extends to dissolved air jar 17 has dissolved air releaser 21, the one end and the dissolved air release pipeline 9 intercommunication of dissolved air releaser 21.
Specifically, agitating unit includes (mixing) shaft 7, impeller 8, (mixing) shaft 7 is connected in the output of motor 6, impeller 8 is installed in the lower extreme of (mixing) shaft 7. Specifically, a slag discharge groove 20 is arranged above the contact chamber 10. Specifically, the slag scraper 12 is a chain type slag scraper. Specifically, one end of the water tank 3 is connected with a first water inlet pipe 4. Specifically, one end of the water collecting tank 14 is connected to a drain pipe 16.
Specifically, when the device is used, the first water pump 2 lifts raw water from the raw water pool 1 to the reaction chamber 5, a flocculating agent is put on the water suction pipe and mixed in the reaction chamber 5 through a stirring device for flocculation, flocculated water after reaction enters the contact chamber 10 through a hole wall and is mixed with gas release water from the dissolved gas releaser 21, floc in water collides with micro bubbles and adheres to form air-carrying floc to float upwards, solid-liquid separation is carried out in the separation zone 11, scum floating to the water surface is scraped to the slag discharge tank 20 through the scum scraping 12, clear water is collected to the water collection tank 14 through the perforated water collection pipe and flows out, partial clear water is pressurized by the second water pump 13 of the dissolved gas water pump and enters the dissolved gas tank 17, the partial clear water is mutually contacted and dissolved with compressed air of the air compressor 18 in the tank, and the saturated dissolved gas water is conveyed to the dissolved gas releaser 5 from the bottom through the conveying pipeline 19.
The adhesion of the micro bubbles and the flocs occurs in the whole air floatation separation process, namely, no 'air floatation dead zone' exists; the design is carried out by applying a shallow pool theory, the pool depth is only 650mm, and the effective water depth<550mm, skillfully isolating the restriction of VE and VF of inlet and outlet water, and separating by air floatation for 3-5 minutes, so that the occupied space of the equipment is greatly reduced, and the treatment capacity is 7000m3The papermaking white water of/d is taken as an example, the occupied area of the traditional air flotation tank is 115(95+20) m2The occupied area of the HRA (W) F floatation tank is about 51m2(ii) a The scum is removed at any time, isolated and discharged, and hardly disturbed to a water body, and is adjusted by a speed regulating motor, so that the method is very flexible and mobile; the static water inlet and the static water outlet have very small disturbance to the water body; to a certain extent, the gas-solid ratio is larger, so that the lower the concentration of suspended matters in the effluent is, the higher the scum solid content is, and because a new gas dissolving mechanism is applied to the KROFTA gas floating tank, the gas-solid ratio is higher by 2-3 times on the contrary under the condition that the volume of a gas dissolving pipe is 12-17 times smaller than that of a gas dissolving tank equipped in a traditional gas floating tank; the new gas dissolving mechanism of the gas dissolving tank 17 is: with a special construction, compressed air is first cut into fine bubbles and then mixed and dissolved with pressurized water with very vigorous turbulence. The air is now present in the dissolved air duct in two forms, one of which is dissolved in water (here similar to dissolved air tank 17, but the residence time of dissolved air tank 17 is 2-4 minutes, and the dissolved air duct is stopped)The retention time is 8-12 seconds, and the contact area of gas and liquid in the dissolved air tube is far larger than that of the dissolved air tube 17), and the other form is that the fine bubbles are clamped in a free state and mixed in water, and the bubbles are directly used for an air tube during air floatation and are used as the main source of the bubbles, and the fine bubbles released from the dissolved air water are added into the air floatation process. The quantity of the micro bubbles formed by the two ways is far greater than that of the structural forms of the dissolved air tank and the dissolved air releaser, and the essential difference of the two dissolved air structures is also the reason for the dissolved air pipe structure not needing the dissolved air releaser; the special structure of the gas dissolving pipe causes no problem of filler blockage, and also has no problem of adding control on the height of the water level in the tank; the raw water, the dissolved air and the medicament are fully mixed in a section of pipeline before being added into the tracheal pool body, and the air bubbles are timely and uniformly dispersed in the suspended particles, so that the phenomenon of non-uniform air bubbles caused by different opening degrees of a plurality of valves or dissolved air releasers is avoided, and the problems of laitance corruption and the like caused by the arrangement of the reaction chamber 5 are also avoided; the bottom of the tank is provided with a mud bucket and a discharge pipe, and the central revolving part is provided with a mud scraping mechanism at the side and the bottom of the tank, so that the sediment in the tank can be ensured to be removed regularly, and the effluent cannot be influenced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a sewage treatment is with air supporting device that deoils, includes former pond (1), its characterized in that: one end of the raw water pool (1) is connected with a first water pump (2), the water outlet end of the first water pump (2) is connected with a water tank (3), one side of the water tank (3) is connected with a reaction chamber (5), the upper end of the reaction chamber (5) is provided with a motor (6), the output end of the motor (6) penetrates through the reaction chamber (5) and is connected with a stirring device, one side of the reaction chamber (5) is connected with a contact chamber (10), the upper end of the contact chamber (10) is connected with a dissolved air release pipeline (9), one side of the interior of the contact chamber (10) is provided with a separation zone (11), a slag scraper (12) is arranged in the separation zone (11), the lower end of the separation zone (11) is connected with a water collecting tank (14) through a water collecting pipe, the lower end of the contact chamber (10) is also connected with a second water pump (13) through a pipeline, one end of the second water, the one end of dissolving gas pitcher (17) is connected with air compressor machine (18), the internal connection that dissolves gas pitcher (17) has pipeline (19), the external connection that the upper end of pipeline (19) extended to dissolve gas pitcher (17) has dissolved gas releaser (21), the one end and the dissolved gas release pipeline (9) intercommunication of dissolved gas releaser (21).
2. The deoiling air flotation device for sewage treatment as set forth in claim 1, wherein: the stirring device comprises a stirring shaft (7) and an impeller (8), wherein the stirring shaft (7) is connected to the output end of the motor (6), and the impeller (8) is installed at the lower end of the stirring shaft (7).
3. The deoiling air flotation device for sewage treatment as set forth in claim 1, wherein: a slag discharge groove (20) is arranged above the contact chamber (10).
4. The deoiling air flotation device for sewage treatment as set forth in claim 1, wherein: the slag scraper (12) is a chain type slag scraper.
5. The deoiling air flotation device for sewage treatment as set forth in claim 1, wherein: one end of the water tank (3) is connected with a first water inlet pipe (4).
6. The deoiling air flotation device for sewage treatment as set forth in claim 1, wherein: one end of the water collecting tank (14) is connected with a drain pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922014123.1U CN211310980U (en) | 2019-11-20 | 2019-11-20 | Deoiling air flotation device for sewage treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922014123.1U CN211310980U (en) | 2019-11-20 | 2019-11-20 | Deoiling air flotation device for sewage treatment |
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| CN211310980U true CN211310980U (en) | 2020-08-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479961A (en) * | 2020-12-31 | 2021-10-08 | 无锡德林海环保科技股份有限公司 | Air floatation method and blue algae pressurization recycling treatment system thereof |
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2019
- 2019-11-20 CN CN201922014123.1U patent/CN211310980U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479961A (en) * | 2020-12-31 | 2021-10-08 | 无锡德林海环保科技股份有限公司 | Air floatation method and blue algae pressurization recycling treatment system thereof |
| CN113479961B (en) * | 2020-12-31 | 2022-03-22 | 无锡德林海环保科技股份有限公司 | Air floatation method and blue algae pressurization recycling treatment system thereof |
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