CN211971859U - Integrated coagulating sedimentation equipment - Google Patents
Integrated coagulating sedimentation equipment Download PDFInfo
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- CN211971859U CN211971859U CN202020251454.7U CN202020251454U CN211971859U CN 211971859 U CN211971859 U CN 211971859U CN 202020251454 U CN202020251454 U CN 202020251454U CN 211971859 U CN211971859 U CN 211971859U
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Abstract
The utility model discloses an integration coagulating sedimentation equipment belongs to sewage treatment technical field. The integrated coagulating sedimentation equipment comprises an equipment room, a premixing area and a clarification area which are adjacent in sequence, wherein: the premixing area is internally provided with an air-stripping mixing and stirring system, and the air-stripping mixing and stirring system comprises a static mixing device and a first micropore aeration and stirring device arranged at the bottom of the static mixing device; the clarifying zone comprises a central aeration stirring zone communicated with the static mixing device, a second micropore aeration stirring device is arranged at the bottom of the central aeration stirring zone, filler zones are arranged on two sides of the central aeration stirring zone, and a water outlet and collecting device is arranged above the filler zones. The utility model completes the whole processes of coagulation flocculation precipitation and effluent clarification in two areas, and the equipment is simple; meanwhile, the problems that flocs are easy to break, mud is easy to accumulate in the equipment and the like in the prior art are effectively solved by providing power through micropore aeration stirring.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially indicates an integration coagulating sedimentation equipment.
Background
The coagulation process is the most basic and very important treatment process in sewage treatment, and by adding some medicaments into water, particles which are difficult to precipitate in the water can be mutually polymerized to form colloid, and then are combined with impurities in a water body to form larger floccule. The flocculating constituent has strong adsorption capacity, can adsorb suspended matters, and can adsorb partial bacteria and soluble substances. The flocculating constituent sinks through adsorption and volume increase, so that the sensory indexes of water quality such as turbidity, chromaticity and the like of raw water can be reduced, and various toxic and harmful pollutants can be removed.
The traditional coagulating sedimentation process in the market at present has certain problems, such as: the equipment volume is large, the floc is easy to be broken due to the structure of the tank body or a mechanical stirring device, the sludge is easy to accumulate, the structure is complex, and the construction and maintenance cost is increased.
The utility model discloses to the easy broken of floc, the structure is complicated, easy long-pending mud this several development release can protect floc structure, flow simple structure, inside flow state misce bene's integration coagulating sedimentation equipment.
SUMMERY OF THE UTILITY MODEL
For solving among the prior art floc easy breakage, structure complicacy, easy long-pending mud scheduling problem, the utility model provides an integration coagulating sedimentation equipment can protect the floc structure, and has advantages such as flow simple structure, inside flow state misce bene.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
the utility model provides an integration coagulating sedimentation equipment, including the equipment room that borders on in proper order, mix district and clarification district in advance, wherein:
the premixing area is internally provided with an air-stripping mixing and stirring system, and the air-stripping mixing and stirring system comprises a static mixing device and a first micropore aeration and stirring device arranged at the bottom of the static mixing device;
the clarifying zone comprises a central aeration stirring zone communicated with the static mixing device, a second microporous aeration stirring device is arranged at the bottom of the central aeration stirring zone, filler zones are arranged on two sides of the central aeration stirring zone, and a water outlet and collecting device is arranged above the filler zones;
be provided with charge device, fan and control system in the equipment room, charge device be used for to throw in the premixing district with throw the coagulant and to throw the flocculating agent in the clarification district, the fan is used for doing first micropore aeration agitating unit and second micropore aeration agitating unit air feed.
Furthermore, a sewage inlet is formed in the lower portion of the premixing area, and a sewage outlet is formed in the upper portion of the premixing area.
Further, the upper part of the central aeration stirring area is connected with the sewage outlet.
Further, the central aeration stirring area is formed by a pair of vertical baffles.
Further, the central aeration stirring area extends along the length direction of the clarification area and is positioned in the middle of the width direction of the clarification area, and the length and the height of the central aeration stirring area are respectively the same as those of the clarification area.
Furthermore, one side of the filler area is arranged on the side wall of the clarification area, the other side of the filler area is provided with a partition board separated from the central aeration stirring area, and a blocking inclined plate connected with the lower end of the partition board is arranged below the filler area.
Further, the below in filler district still be provided with the bottom swash plate that the lateral wall and the diapire in clarification district are connected, the bottom swash plate forms hopper-shaped structure, second micropore aeration agitating unit is located hopper-shaped structure's lower part opening part.
Furthermore, the control system is used for controlling the dosing device, the fan, the first microporous aeration stirring device and the second microporous aeration stirring device.
Preferably, the aeration flux of the first microporous aeration stirring device and the aeration flux of the second microporous aeration stirring device both range from 0.5 m to 3m3The ratio of the water to the water is between h and m.
Preferably, the packing of the packing region is common packing, such as inclined plate packing, inclined tube packing, and the like.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) aiming at the easy breakage of flocs: a mechanical stirring device is used for stirring in a traditional coagulation device, and mechanical stirring is easy to damage generated floc micelles, breaks the integrity of flocs and causes poor sedimentation of the flocs. The baffle turning point in the common baffle coagulating sedimentation tank can also damage the floc.
This application adopts micropore aeration agitating unit to replace mechanical stirring, and the accessible changes aeration rate size nimble stirring dynamics of adjusting, and micro bubble is more complete than mechanical stirring in mixing liquid to the protection flocculus does not receive destruction, is softer, economy, convenient operation's mixing stirring mode than traditional stirring mode.
(2) Aiming at the complex structure: the coagulation flocculation area of the traditional coagulation device has a complex structure, electric equipment is complex, power consumption is high, the cost is high for small and medium-sized sewage projects, construction is not easy, and the later maintenance workload is large.
This application simple structure only accomplishes the whole flows of coagulating sedimentation and clarification play water in two regions, and required consumer is few, and maintenance work is few.
(3) Aiming at the easy accumulation of mud: the floc precipitated in the traditional coagulating sedimentation device is easy to accumulate everywhere, which causes the blockage of the pipeline orifice.
This application is equipped with micropore aeration equipment in premixing district and clarification district all in the bottom, when for mixing the stirring and providing power, also can guarantee that the floc can not deposit in the equipment bottom, has guaranteed the uniformity of full pond mixed liquid, makes the flocculation process of coagulating more complete.
Drawings
FIG. 1 is a schematic structural view of the integrated coagulating sedimentation equipment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A in FIG. 1;
FIG. 3 is a schematic cross-sectional view of B-B in FIG. 1.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model provides an integration coagulating sedimentation equipment, see figure 1-3, including equipment room I, the district II and the clarification district III that adjoin in proper order in advance, wherein:
the premixing area II is internally provided with an air-stripping mixing and stirring system 9, and the air-stripping mixing and stirring system 9 comprises a static mixing device 1 and a first microporous aeration stirring device 2 arranged at the bottom of the static mixing device 1;
the clarification zone III comprises a central aeration stirring zone 3 communicated with the static mixing device 1, the bottom of the central aeration stirring zone 3 is provided with a second microporous aeration stirring device 4, both sides of the central aeration stirring zone 3 are provided with filler zones 5, and a water outlet and water collecting device 6 is arranged above the filler zones 5;
a dosing device 7, a fan 8 and a control system (not shown) are arranged in the equipment room I, the dosing device 7 is used for adding a coagulant into the premixing area II and adding a flocculant into the clarification area III, the fan 8 is used for supplying air to the first microporous aeration stirring device 2 and the second microporous aeration stirring device 4, and the control system is used for carrying out overall control, specifically controlling the dosing device 7, the fan 8, the first microporous aeration stirring device 2, the second microporous aeration stirring device 4 and the like.
This application adopts micropore aeration agitating unit to replace mechanical stirring, and the accessible changes the nimble stirring dynamics of adjusting of amount of wind size, and micro bubble is more complete than mechanical stirring in mixing the liquid to the protection flocculus does not receive destruction, is softer, economy, convenient operation's mixing stirring mode than traditional stirring mode. The micropore aeration device can provide power for mixing and stirring, can ensure that flocs can not be deposited at the bottom of the equipment, ensures the consistency of the mixed liquid in the whole tank, and ensures that the coagulation and flocculation process is more complete.
Further, a sewage inlet is formed in the lower portion of the premixing area II, and a sewage outlet 14 is formed in the upper portion of the premixing area II.
After sewage enters the premixing area, a coagulant adding device in the equipment room simultaneously adds a coagulant into the premixing area, the sewage and the coagulant provide power through a micropore aeration device at the bottom, and are continuously mixed and stirred in the process of upwards passing through the static mixing device, so that the charged polymer is rapidly contacted with all colloid impurities, colloidal particles are destabilized, and then the destabilized colloidal particles are coagulated mutually and simultaneously form large floccules by the adsorption and bridging action of high polymers with continuously increased polymerization degrees, and the coagulation process is better finished.
If a metal salt coagulant is added, soluble phosphorus in the sewage can be converted into suspended phosphorus, and insoluble phosphate precipitates are generated by metal ions and phosphate radicals generated by iron salt, aluminum salt and the like.
Furthermore, the aeration flux value ranges of the first micropore aeration stirring device 2 and the second micropore aeration stirring device 4 are both 0.5-3m3The aeration quantity of the two areas can be respectively adjusted between h and m to adjust the optimal coagulation and flocculation conditions.
Preferably, the load area of the packing zone 5 accounts for more than 60% of the area of the whole clarification zone 3, and the packing is common packing for solid-liquid separation, such as common inclined plate packing, inclined tube packing and the like.
Further, the upper part of the central aeration stirring area 3 is connected with a sewage outlet, and sewage enters the clarification area III from the premixing area II.
Further, the central aeration stirring area 3 can be formed by clamping a pair of vertical baffles 10, the central aeration stirring area 3 extends along the length direction of the clarification area III and is positioned in the middle of the width direction of the clarification area III, the length and the height of the central aeration stirring area 3 are respectively the same as those of the clarification area III, and the bottom of the central aeration stirring area 3 is not sealed and is used for draining sewage.
Further, one side of the filler area 5 is arranged on the side wall of the clarification area III, the other side of the filler area is provided with a partition plate 11 separated from the central aeration stirring area 3, a blocking inclined plate 12 connected with the lower end of the partition plate 11 is arranged below the filler area 5, and sewage is drained through the blocking inclined plate 12. The included angle between the blocking inclined plate 12 and the horizontal direction is beta, as shown in fig. 3, the beta angle is more than or equal to 40 degrees, and drainage of sewage is facilitated.
Further, a bottom inclined plate 13 connected with the side wall and the bottom wall of the clarification zone III is further arranged below the filler zone 5, the bottom inclined plate 13 forms a funnel-shaped structure, and the second microporous aeration stirring device 4 is positioned at the lower opening of the funnel-shaped structure. The included angle between the bottom inclined plate 13 and the bottom wall is alpha, and as shown in figure 3, the alpha angle is more than or equal to 40 degrees.
After sewage passes through the premixing area, the sewage enters a central aeration stirring area in the clarification area, a second micropore aeration stirring device at the bottom is normally opened to provide stirring and mixing power, and meanwhile, a flocculating agent is added inwards by a dosing device in the equipment room, so that residual small alum flocs and fine suspended pollutants in the premixing area are flocculated into large flocs, and the coagulation of particles is accelerated.
The mixed liquid which is not completely subjected to solid-liquid separation flows upwards from the central aeration stirring area to two sides, and enters the filling area after passing through the blocking inclined plate, the mixed liquid and bubbles generated by partial aeration enter together in the ascending process, the bubbles vertically rise along the outer side partition plate, a part of floc colloid can slide back to the central aeration area along the bottom inclined plate due to the self gravity difference generated by different densities, a part of floc forms a stable suspended sludge layer in the filling, the floc colloid in the subsequent mixed liquid is intercepted, the mixed liquid is subjected to solid-liquid separation in the filling area, the clarifying effect is achieved, and the mixed liquid finally rises and is collected to the water outlet collecting device to be discharged out of the device. The sludge generated by the solid-liquid separation can be discharged from a emptying pipe at the bottom of the clarification zone, and can also be pumped and transported outside.
Preferably, the surface load of the clarifying zone can reach 1.5-2m3/h·m2The power consumption per ton of water of the whole device is less than 0.1kWh/m3。
In conclusion, the utility model completes the whole processes of coagulation flocculation precipitation and effluent clarification in two areas, and needs less electric equipment and less maintenance work; meanwhile, the problems that flocs are easy to break, mud is easy to accumulate in the equipment and the like in the prior art are effectively solved by providing power through micropore aeration stirring.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An integrated coagulating sedimentation device, which is characterized by comprising a device room, a premixing area and a clarification area which are adjacent in sequence, wherein:
the premixing area is internally provided with an air-stripping mixing and stirring system, and the air-stripping mixing and stirring system comprises a static mixing device and a first micropore aeration and stirring device arranged at the bottom of the static mixing device;
the clarifying zone comprises a central aeration stirring zone communicated with the static mixing device, a second microporous aeration stirring device is arranged at the bottom of the central aeration stirring zone, filler zones are arranged on two sides of the central aeration stirring zone, and a water outlet and collecting device is arranged above the filler zones;
be provided with charge device, fan and control system in the equipment room, charge device be used for to throw in the premixing district with throw the coagulant and to throw the flocculating agent in the clarification district, the fan is used for doing first micropore aeration agitating unit and second micropore aeration agitating unit air feed.
2. The integrated coagulating sedimentation device according to claim 1, wherein a sewage inlet is provided at a lower part of the premixing zone, and a sewage outlet is provided at an upper part of the premixing zone.
3. The integrated coagulating sedimentation device according to claim 2, wherein the upper part of the central aeration stirring zone is connected to the sewage outlet.
4. The integrated coagulating sedimentation device according to any one of claims 1 to 3, wherein the central aeration agitation zone is formed by sandwiching a pair of vertical baffles.
5. The integrated coagulating sedimentation device according to claim 4, wherein the central aeration stirring zone extends in the length direction of the clarification zone and is located at the middle in the width direction thereof, and the length and height of the central aeration stirring zone are respectively the same as those of the clarification zone.
6. The integrated coagulating sedimentation device according to claim 4, wherein one side of the filler zone is provided on the side wall of the clarification zone, the other side of the filler zone is provided with a partition plate which is separated from the central aeration stirring zone, and a baffle inclined plate which is connected with the lower end of the partition plate is arranged below the filler zone.
7. The integrated coagulating sedimentation device according to claim 6, wherein a bottom inclined plate connected with the side wall and the bottom wall of the clarification zone is further arranged below the filling zone, the bottom inclined plate forms a funnel-shaped structure, and the second microporous aeration stirring device is positioned at the lower opening of the funnel-shaped structure.
8. The integrated coagulating sedimentation equipment according to claim 1, wherein the aeration flux of the first microporous aeration stirring device and the aeration flux of the second microporous aeration stirring device both have a value in the range of 0.5-3m3The ratio of the water to the water is between h and m.
9. The integrated coagulating sedimentation device according to claim 1, wherein the filler in the filler zone is an inclined plate filler and/or an inclined tube filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020251454.7U CN211971859U (en) | 2020-03-04 | 2020-03-04 | Integrated coagulating sedimentation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020251454.7U CN211971859U (en) | 2020-03-04 | 2020-03-04 | Integrated coagulating sedimentation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN211971859U true CN211971859U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020251454.7U Active CN211971859U (en) | 2020-03-04 | 2020-03-04 | Integrated coagulating sedimentation equipment |
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|---|---|
| CN (1) | CN211971859U (en) |
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- 2020-03-04 CN CN202020251454.7U patent/CN211971859U/en active Active
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