CN215559527U - Shield field sewage treatment device - Google Patents
Shield field sewage treatment device Download PDFInfo
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- CN215559527U CN215559527U CN202121822160.6U CN202121822160U CN215559527U CN 215559527 U CN215559527 U CN 215559527U CN 202121822160 U CN202121822160 U CN 202121822160U CN 215559527 U CN215559527 U CN 215559527U
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Abstract
The utility model discloses a shield site sewage treatment device, and belongs to the technical field of shield site treatment. A shield site sewage treatment device comprises: a sedimentation tank, a concentration tank, a medicament tank, a filter press and a clean water tank; the top of the concentration tank is provided with a feed inlet and is communicated with the sedimentation tank, the bottom of the concentration tank is provided with a discharge outlet and is communicated with the medicament tank, and the side wall of the concentration tank is provided with a water outlet and is communicated with the clean water tank; the reagent pool is communicated with a filter press, and the filter press is communicated with a sedimentation tank. The method comprises the steps of directly putting the shield field muck and the wastewater into a sedimentation tank, adding a defoaming agent into the sedimentation tank, pumping the water body in the sedimentation tank into a concentration tank for sedimentation, so that the water body is layered, pumping the top clear water into a clear water tank, and pumping the bottom mud into a chemical agent tank; adding a chemical flocculant into the chemical tank for solid-liquid separation, pumping the separated solid into a filter press for pressing into mud cakes and discharging, and enabling the wastewater in the filter pressing process to flow back to the sedimentation tank through a fifth pipeline.
Description
Technical Field
The utility model relates to the technical field of shield site treatment, in particular to a shield site sewage treatment device.
Background
At present, subways are built in large and medium-sized cities in China continuously, and meanwhile, a large amount of subway muck, especially subway shield muck, is generated. But the moisture content of the subway muck is higher, so that the muck is in a certain flowing state, and the difficulty of transporting the muck outside is increased. In addition, the existing muck and sewage can be recycled after certain treatment, but the conventional treatment device is relatively complex and is inconvenient to treat on a construction site. Therefore, the problem that shield site sewage is inconvenient to treat exists in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a shield site sewage treatment device to solve the problem that the existing shield site sewage is inconvenient to treat.
The technical scheme for solving the technical problems is as follows:
a shield site sewage treatment device comprises: a sedimentation tank, a concentration tank, a medicament tank, a filter press and a clean water tank;
the top of the concentration tank is provided with a feed inlet which is communicated with the sedimentation tank through a first pipeline, the bottom of the concentration tank is provided with a discharge outlet which is communicated with the reagent tank through a second pipeline, the side wall of the concentration tank is provided with a water outlet, and the water outlet is communicated with the clean water tank through a third pipeline;
the reagent pool is communicated with a filter press through a fourth pipeline, and the filter press is communicated with the sedimentation tank through a fifth pipeline.
According to the utility model, the shield field muck and the wastewater can be directly put into the sedimentation tank, and the defoaming agent is added into the sedimentation tank to remove foam components in the water body and adjust the pH value of the water body; then the water in the sedimentation tank enters a concentration tank through a first pipeline and a feed inlet for sedimentation, so that the water is layered in the concentration tank, clear water at the top layer is pumped into a clear water tank through a water outlet and a third pipeline, and slurry at the bottom layer enters a medicament tank through a discharge outlet and a second pipeline; and adding a chemical flocculant into the reagent tank to perform solid-liquid separation, pumping the separated solid into a filter press through a fourth pipeline, pressing the solid into a mud cake by the filter press and discharging the mud cake, and returning the wastewater generated in the filter pressing process to the sedimentation tank through a fifth pipeline.
Further, the clean water tank is communicated with the medicament tank through a sixth pipeline.
The clean water in the clean water tank can flow into the chemical agent tank through the sixth pipeline pump, so that the slurry in the chemical agent tank can be conveniently subjected to solid-liquid separation by matching with the chemical flocculating agent.
Further, the clean water tank is communicated with the filter press through a seventh pipeline.
The clean water in the clean water tank can be pumped out through the seventh pipeline, so that the mesh belt cleaning can be conveniently carried out on the water supply of the filter press. Furthermore, the inner wall of the bottom of the sedimentation tank is in a conical shape.
The conical sedimentation tank bottom is convenient for sediment sedimentation, and the preliminary separation of the sediment and the wastewater is realized when a water body is pumped into the concentration tank from the interior of the sedimentation tank.
Furthermore, the inner wall of the bottom of the concentration tank is in a conical shape.
The concentration tank with the conical bottom is convenient for clear water and slurry in the concentration tank to precipitate and stratify.
Further, a stirrer is arranged in the medicament pool.
The chemical flocculant dissolving device can accelerate the dissolving speed of the chemical flocculant in the chemical tank by arranging the stirrer, and is convenient for solid-liquid separation in the chemical tank.
Further, a transition pool is arranged between the sedimentation pool and the clean water pool.
The utility model has the advantages that the sedimentation tank and the clean water tank are arranged at intervals by arranging the transition tank, so that the water quality in the clean water tank is prevented from being polluted.
The utility model has the following beneficial effects:
(1) according to the utility model, the shield field muck and the wastewater can be directly put into the sedimentation tank, and the defoaming agent is added into the sedimentation tank to remove foam components in the water body and adjust the pH value of the water body; then the water in the sedimentation tank enters a concentration tank through a first pipeline and a feed inlet for sedimentation, so that the water is layered in the concentration tank, clear water at the top layer is pumped into a clear water tank through a water outlet and a third pipeline, and slurry at the bottom layer enters a medicament tank through a discharge outlet and a second pipeline; and adding a chemical flocculant into the agent tank to perform solid-liquid separation, pumping the separated solid into a filter press through a fourth pipeline, pressing the solid into a mud cake by the filter press and discharging the mud cake, and returning waste water generated in the filter pressing process to a sedimentation tank through a fifth pipeline so as to solve the problem that the shield site sewage is inconvenient to treat.
(2) The concentration tank of the utility model adopts a physical method to precipitate and separate clear water and slurry, and the medicament tank adopts a chemical method to separate solid and liquid in the slurry, so that the separation efficiency of the clear water is improved by matching the chemical method and the solid and liquid separation method.
Drawings
FIG. 1 is a schematic structural diagram of a shield site sewage treatment device of the present invention;
in the figure: 10-a sedimentation tank; 20-a concentration tank; 21-a feed inlet; 22-a discharge hole; 23-a water outlet; 30-a medicament pool; 31-a stirrer; 40-a clean water tank; 50-a filter press; 60-a transition tank; 71-a first conduit; 72-a second conduit; 73-a third line; 74-fourth line; 75-a fifth pipeline; 76-sixth conduit; 77-seventh conduit.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.
Examples
Referring to fig. 1, a shield site sewage treatment apparatus includes: a sedimentation tank 10, a concentration tank 20, a medicament tank 30, a filter press 50 and a clean water tank 40.
The sedimentation tank 10 is used for carrying out preliminary sedimentation separation on the dregs and the sewage of the shield site, and a defoaming agent can be added into the sedimentation tank 10 to remove foam components in the water body and adjust the pH value of the water body, so that the interference of the foam to the water body capacity is avoided. The bottom of the sedimentation tank 10 is conical, so that the residue soil is conveniently gathered at the bottom to realize the preliminary separation of the residue soil and the wastewater. The interior of the sedimentation tank 10 is communicated with the concentration tank 20 through a first pipeline 71, so that the water in the sedimentation tank 10 can be conveniently sucked into the concentration tank 20.
Concentrated jar 20 vertical setting, feed inlet 21 has been seted up at its top, and feed inlet 21 communicates with sedimentation tank 10 through first pipeline 71, can be with the inside of concentrated jar 20 of water through first pipeline 71 suction of water after preliminary sedimentation separation in sedimentation tank 10. The water body in the concentration tank 20 can be settled and layered again, and the bottom of the concentration tank 20 is also conical, so that slurry can be conveniently gathered. The bottom of the concentration tank 20 is conical and is provided with a discharge port 22, the discharge port 22 is communicated with the reagent pool 30 through a second pipeline 72, and the slurry gathered at the bottom is conveniently discharged through the discharge port 22 to be continuously dewatered. The water outlet 23 is further formed in the side wall, close to the top, of the concentration tank 20, the water outlet 23 is communicated with the clean water tank 40 through a third pipeline 73, and therefore the water body, close to the top, inside the concentration tank 20 can be conveniently and directly pumped into the clean water tank 40.
The chemical agent tank 30 is used for further dewatering the slurry discharged from the discharge port 22, and a chemical flocculant may be added to the chemical agent tank 30 to separate solid from liquid in the slurry. The inside of the chemical tank 30 is also provided with a stirrer 31, which can accelerate the dissolution speed of the chemical flocculant in the chemical tank 30, facilitate the solid-liquid separation in the chemical tank 30 and enable the solidified mud cake to be gathered at the bottom of the chemical tank 30. The top of the chemical tank 30 is communicated with the clean water tank 40 through a sixth pipeline 76, and the clean water tank 40 can provide clean water for the chemical tank 30, so that chemical flocculants can be dissolved conveniently and rapidly. The reagent reservoir 30 is in communication with the filter press 50 via a fourth conduit 74 such that the separated solids are drawn into the filter press 50 via the fourth conduit 74.
The filter press 50 is prior art and receives the discharged sludge from the agent tank 30 through the fourth line 74 and delivers it for dewatering by squeezing or gravity during delivery, resulting in a sludge cake discharge. The clean water tank 40 communicates with the filter press 50 through a seventh pipe 77 to supply clean water to the filter press 50 for the mesh belt cleaning. The wastewater separated from the filter press 50 is returned to the sedimentation tank 10 through the fifth pipe 75, so that the wastewater is continuously circulated.
The clean water tank 40 is used for collecting and storing clean water, so that the sewage on the shield site can be recycled after simple treatment. The clean water can be directly introduced into equipment such as a vibrating screen and the like to wash the muck, the slag car and the like. And through relevant detection, the construction wastewater meets the discharge requirement of the second-class pollutant secondary standard and can be directly discharged into municipal pipelines, so that the complexity of the outward transportation of the sewage is reduced. A transition tank 60 is arranged between the sedimentation tank 10 and the clean water tank 40, so that the water in the sedimentation tank 10 is prevented from splashing into the clean water tank 40 to cause pollution in the sewage treatment process.
According to the utility model, each pipeline between the communicated components is communicated with a water pipe through the arrangement of a water pump or a slurry pump, so that the transmission of water or slurry is realized.
The operation process of the utility model is as follows: (1) directly discharging the slag soil and the wastewater in the shield flow state into a sedimentation tank 10; (2) adding a defoaming agent into the sedimentation tank 10 to eliminate foam in the water body and adjust the pH value; (3) pumping the water body at the top of the sedimentation tank 10 into the concentration tank 20 through the first pipeline 71 and the feed inlet 21; (4) the inside of the concentration tank 20 is settled, and the clear water at the top layer is pumped into the clear water tank 40 through the water outlet 23 and the third pipeline 73; (5) slurry at the bottom of the concentration tank 20 enters the medicament pool 30 through the discharge hole 22 and the second pipeline 72; (6) the clean water tank 40 supplies water to the chemical tank 30 through the sixth pipeline 76; (7) adding a chemical flocculant to the chemical agent pool 30 to separate solid and liquid of the slurry; (8) the sludge separated from the agent tank 30 enters the filter press 50 through a fifth pipeline 75; (9) the clean water tank 40 supplies water to the filter press 50 through a seventh pipe 77 to clean the mesh belt; (10) the filter press 50 discharges the sludge cake by filter pressing, and the produced wastewater flows back to the sedimentation tank 10 through the fifth pipeline 75.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a shield constructs on-spot sewage treatment plant which characterized in that includes: a sedimentation tank (10), a concentration tank (20), a medicament tank (30), a filter press (50) and a clean water tank (40);
the top of the concentration tank (20) is provided with a feed inlet (21), the feed inlet (21) is communicated with the sedimentation tank (10) through a first pipeline (71), the bottom of the concentration tank (20) is provided with a discharge outlet (22), the discharge outlet (22) is communicated with the medicament tank (30) through a second pipeline (72), the side wall of the concentration tank (20) is provided with a water outlet (23), and the water outlet (23) is communicated with the clean water tank (40) through a third pipeline (73);
the agent tank (30) is connected to the filter press (50) via a fourth line (74), and the filter press (50) is connected to the sedimentation tank (10) via a fifth line (75).
2. The shield site sewage treatment plant according to claim 1, wherein the clean water basin (40) communicates with the agent basin (30) through a sixth pipeline (76).
3. The shield site sewage treatment plant according to claim 2, characterized in that said clean water basin (40) communicates with said filter press (50) through a seventh pipe (77).
4. The shield site sewage treatment plant according to claim 1, wherein the bottom inner wall of the sedimentation tank (10) is conical.
5. The shield site sewage treatment plant according to claim 4, wherein the inner wall of the bottom of the thickening tank (20) is conical.
6. The shield site sewage treatment device according to claim 5, wherein an agitator (31) is provided inside the agent tank (30).
7. The shield site sewage treatment plant according to any of claims 1 to 6, characterized in that a transition tank (60) is provided between the settling tank (10) and the clean water tank (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121822160.6U CN215559527U (en) | 2021-08-05 | 2021-08-05 | Shield field sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121822160.6U CN215559527U (en) | 2021-08-05 | 2021-08-05 | Shield field sewage treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN215559527U true CN215559527U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121822160.6U Active CN215559527U (en) | 2021-08-05 | 2021-08-05 | Shield field sewage treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118221317A (en) * | 2024-05-27 | 2024-06-21 | 生态环境部南京环境科学研究所 | Sewage continuous purification treatment system and method in shield construction |
-
2021
- 2021-08-05 CN CN202121822160.6U patent/CN215559527U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118221317A (en) * | 2024-05-27 | 2024-06-21 | 生态环境部南京环境科学研究所 | Sewage continuous purification treatment system and method in shield construction |
| CN118221317B (en) * | 2024-05-27 | 2024-09-24 | 生态环境部南京环境科学研究所 | Sewage continuous purification treatment system and method in shield construction |
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