CN220443245U - Pretreatment system of high-density sedimentation tank - Google Patents
Pretreatment system of high-density sedimentation tank Download PDFInfo
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- CN220443245U CN220443245U CN202321259809.7U CN202321259809U CN220443245U CN 220443245 U CN220443245 U CN 220443245U CN 202321259809 U CN202321259809 U CN 202321259809U CN 220443245 U CN220443245 U CN 220443245U
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- tank
- sedimentation tank
- flocculation
- coagulation
- pretreatment system
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- 238000004062 sedimentation Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 230000015271 coagulation Effects 0.000 claims abstract description 37
- 238000005345 coagulation Methods 0.000 claims abstract description 37
- 238000005189 flocculation Methods 0.000 claims abstract description 28
- 230000016615 flocculation Effects 0.000 claims abstract description 28
- 239000003814 drug Substances 0.000 claims description 20
- 239000000701 coagulant Substances 0.000 claims description 15
- 239000010802 sludge Substances 0.000 claims description 11
- 229940079593 drug Drugs 0.000 claims description 9
- 230000001112 coagulating effect Effects 0.000 claims 9
- 239000010865 sewage Substances 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
The utility model discloses a pretreatment system of a high-density sedimentation tank, and belongs to the field of sewage treatment. The utility model comprises a coagulation tank, a flocculation tank and a sedimentation tank which are divided into three small chambers, wherein the caliber of a water inlet pipeline of the three coagulation tanks is sequentially reduced, and an internally arranged stirrer is pushed by water flow of a water inlet pipe, so that the function of gradually increasing the flow velocity of the water flow and the rotating speed of the stirrer is realized. The bottom of the flocculation tank is provided with the multi-layer stepped sedimentation tank, so that the speed of water flowing through the flocculation tank can be effectively slowed down, suspended matters in water can be intercepted, impurities can be settled step by step from top to bottom, and the situations of blockage of the sedimentation tank and the like are prevented.
Description
Technical Field
The utility model belongs to the field of sewage treatment, and particularly relates to a high-density sedimentation tank pretreatment system.
Background
The high-density sedimentation tank is a compact, efficient and flexible sewage treatment process, and can be widely applied to various fields.
The principle of the sedimentation tank is that sewage is introduced into the sedimentation tank, then the flow velocity of water flow is gradually reduced under the action of a water purifying plate or a guide plate, the solid particles in the sewage gradually sink to the bottom to form a sludge layer, and relatively clear water flows out from the upper part.
The high-density sedimentation tank in the prior art has the problems that the sludge amount per unit area is large, and the sludge returning phenomenon is likely to occur once the sludge is discharged smoothly, and the running condition cannot be effectively adjusted in time under the condition that the incoming water flow is changed due to the short stay time of sewage in the system.
The stirring effect of the stirrer in the coagulation tank is poor, the coagulation reaction is insufficient, the flow velocity in the flocculation tank is too large, larger flocculates are easy to be dispersed, and the flocculant which is not completely reacted easily enters the next reaction tank to affect the subsequent water treatment equipment.
The impact force of the water flow on the equipment is large due to improper control of the water flow, and the deformation of the parts is easy to cause.
Thus, there is a need for a new design that enhances the efficacy of the agitation and flocculation tanks and also effectively slows down the flow rate of the wastewater.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provide a high-density sedimentation tank pretreatment system.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
the utility model provides a high density sedimentation tank pretreatment systems, includes thoughtlessly congeals pond, flocculation basin and sedimentation tank, thoughtlessly congeals the pond and be equipped with threely, thoughtlessly congeals pond and third thoughtlessly congeals the pond for first thoughtlessly congeals pond, second respectively, the three thoughtlessly congeals the pond all be equipped with the agitator, the three thoughtlessly congeals the pond and be the echelonment and arrange in proper order, first thoughtlessly congeals the pond top and be provided with coagulant solution jar, the third thoughtlessly congeals the pond and links to each other with the flocculation basin, flocculation basin top be equipped with flocculant solution jar, flocculation basin and sedimentation tank link to each other.
The stirrer comprises a blade, a rotating shaft and a base, wherein the blade is arranged on the rotating shaft, the rotating shaft is arranged on the base, and the rotating shaft can freely rotate.
The coagulant solution tank is provided with a coagulant dosing device, and the drug outlet caliber of the coagulant dosing device is slightly smaller than the inner diameter of the first coagulation tank.
The flocculant solution tank is provided with a flocculant dosing device, and a medicine outlet of the flocculant dosing device is slightly smaller than the inner diameter of the flocculation tank.
The bottom of the flocculation tank is provided with a plurality of layers of stepped sedimentation tanks.
The sedimentation tank is provided with a clear water outlet pipe and a sludge outlet.
The inner diameters of the water inlet of the first coagulation tank, the water inlet of the second coagulation tank and the water inlet of the third coagulation tank are sequentially reduced.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model adopts three-stage coagulation cells, the inner diameters of water inlets of the three coagulation tanks are sequentially reduced, the liquid flow rate entering the three coagulation tanks is sequentially increased, the rotating speed of the stirrer is determined by the flow rate of inflow water flow, and the two are matched to further obtain the effect of gradually increasing the rotating speed of the stirrer.
The bottom of the flocculation tank is provided with the multi-layer stepped sedimentation tank, so that the speed of water flowing through the flocculation tank can be effectively slowed down, suspended matters or colloid and other impurities in water are intercepted, sludge particles wrapped by the impurities are settled step by step from top to bottom, the sedimentation effect is obviously improved, and the situations of blockage of the sedimentation tank, water yield reduction and the like are prevented.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the system;
FIG. 2 is a schematic diagram of a stirrer;
FIG. 3 is a schematic diagram of a stepped precipitation tank;
in the figure: 1. a first coagulation tank; 2. a second coagulation tank; 3. a third coagulation tank; 4. a stirrer; 5. a coagulant solution tank; 6. coagulant dosing device; 7. a flocculation tank; 8. a precipitation tank; 9. a flocculant solution tank; 10. a flocculant dosing device; 11. a sedimentation tank; 12. a clear water outlet pipe; 13. a sludge outlet valve.
Detailed Description
The utility model is further described below in connection with specific embodiments.
As shown in fig. 1, 2 and 3, the present utility model mainly comprises a coagulation tank, a flocculation tank 7 and a sedimentation tank 11.
The coagulation tank is divided into three cells, namely a first coagulation tank 1, a second coagulation tank 2 and a third coagulation tank 3, wherein the first coagulation tank 1 is connected with a sewage water inlet pipe, a second water inlet pipe is arranged between the first coagulation tank 1 and the second coagulation tank 2, a third water inlet pipe is arranged between the second coagulation tank 2 and the third coagulation tank 3, and the inner diameters of three water inlet pipes are sequentially reduced.
The stirrer 4 is arranged in the three coagulation tanks, and as shown in fig. 2, the structure of the stirrer 4 comprises a rotating shaft, a blade and a base, the base is arranged at the bottom of the coagulation tank, the rotating shaft is perpendicular to the bottom of the coagulation tank and is arranged on the base, and the blade is arranged on the rotating shaft. The rotating shaft of the stirrer 4 can freely rotate on the base and is not externally connected with a power source. Under the action of the water flow impact blade of the water inlet pipe of the coagulation basin, the whole stirrer 4 is driven to stir in a rotating way.
The heights of the three coagulation tanks are sequentially reduced, and according to the principle that the water pressure is inversely proportional to the inner diameter of the water outlet pipeline, the water flow speed entering the three flocculation tanks is sequentially increased, the greater the force for pushing the paddles is, and further the gradual lifting of the rotating speed of the stirrer 4 in the three coagulation tanks is realized.
The coagulant solution tank 5 is arranged above the first coagulation tank 1, the coagulant solution tank 5 is used for adding medicines into the first coagulation tank 1 through the coagulant medicine adding device 6, the medicine outlet of the coagulant medicine adding device 6 is slightly smaller than the inner diameter of the first coagulation tank, compared with the small-caliber medicine adding port in the prior art, the large-caliber medicine adding port can ensure that medicines are fully and uniformly added into the reaction tank, and the effect of the medicines is prevented from being influenced due to the non-uniformity of the medicines.
The flocculant solution tank 9 arranged above the flocculation tank 7 is also used for adding medicines through the flocculant medicine adding device 10, the medicine outlet design of the flocculant medicine adding device 10 is the same as that of the coagulant medicine adding device 6, and the medicine outlet of the flocculant is slightly smaller than the inner diameter of the flocculation tank 7, so that the medicines are ensured to be fully and uniformly added into the reaction tank.
The bottom of flocculation tank 7 is provided with multilayer echelonment sedimentation tank 8, as shown in fig. 3, after rivers enter into the flocculation tank, echelonment sedimentation tank 8 can effectually slow down the speed of rivers to in making impurity such as suspended solid and the colloid that take place the flocculation in the aquatic deposit into the recess, rivers flow downwards step by step, impurity also top-down subsides step by step, the effectual promotion flocculation sedimentation effect that prevents to flow into the water pipe mouth of sedimentation tank and take place to block up.
The treated water flows into the sedimentation tank 11 for final sedimentation, a clear water outlet pipe 12 is arranged above the sedimentation tank 11, a sludge outlet valve 13 is arranged at the bottom of the sedimentation tank 11, and the sludge outlet valve 13 can recycle part of sludge under the condition of good running condition and water quality, so that the cost of sewage treatment is reduced.
Claims (7)
1. The utility model provides a high density sedimentation tank pretreatment systems, its characterized in that, including coagulating basin, flocculation basin and sedimentation tank, the coagulating basin be equipped with three, be first coagulating basin, second coagulating basin and third coagulating basin respectively, three coagulating basin all be equipped with the agitator, three coagulating basin be the echelonment and arrange in proper order, first coagulating basin top be provided with coagulant solution jar, third coagulating basin link to each other with the flocculation basin, flocculation basin top be equipped with the flocculant solution jar, flocculation basin link to each other with the sedimentation tank.
2. The high-density sedimentation tank pretreatment system of claim 1, wherein the agitator comprises a blade, a shaft and a base, the blade is disposed on the shaft, the shaft is disposed on the base, and the shaft is freely rotatable.
3. The pretreatment system of a high-density sedimentation tank of claim 1, wherein the coagulant solution tank is provided with a coagulant dosing device, and the drug outlet caliber of the coagulant dosing device is slightly smaller than the inner diameter of the first coagulation tank.
4. The high-density sedimentation tank pretreatment system of claim 1, wherein the flocculant solution tank is provided with a flocculant dosing device, and a drug outlet of the flocculant dosing device is slightly smaller than the inner diameter of the flocculation tank.
5. The high-density sedimentation tank pretreatment system of claim 1, wherein the bottom of the flocculation tank is provided with a plurality of layers of stepped sedimentation tanks.
6. The high-density sedimentation tank pretreatment system of claim 1, wherein the sedimentation tank is provided with a clear water outlet pipe and a sludge outlet.
7. The high-density sedimentation tank pretreatment system of claim 1, wherein the inner diameters of the water inlet of the first coagulation tank, the water inlet of the second coagulation tank and the water inlet of the third coagulation tank are sequentially reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321259809.7U CN220443245U (en) | 2023-05-23 | 2023-05-23 | Pretreatment system of high-density sedimentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321259809.7U CN220443245U (en) | 2023-05-23 | 2023-05-23 | Pretreatment system of high-density sedimentation tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220443245U true CN220443245U (en) | 2024-02-06 |
Family
ID=89735358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321259809.7U Active CN220443245U (en) | 2023-05-23 | 2023-05-23 | Pretreatment system of high-density sedimentation tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220443245U (en) |
-
2023
- 2023-05-23 CN CN202321259809.7U patent/CN220443245U/en active Active
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