CN113797606A - Rectangular peripheral inlet and outlet sedimentation tank with optimized water inlet and outlet and sludge discharge modes - Google Patents
Rectangular peripheral inlet and outlet sedimentation tank with optimized water inlet and outlet and sludge discharge modes Download PDFInfo
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- CN113797606A CN113797606A CN202010555807.7A CN202010555807A CN113797606A CN 113797606 A CN113797606 A CN 113797606A CN 202010555807 A CN202010555807 A CN 202010555807A CN 113797606 A CN113797606 A CN 113797606A
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- sludge discharge
- sedimentation tank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
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Abstract
The invention relates to the technical field of sewage treatment, and particularly discloses a rectangular peripheral inlet and outlet sedimentation tank with optimized inlet and outlet water and sludge discharge modes, which comprises a sedimentation tank body, a water inlet part, a water outlet part, a sludge discharge part and a chain plate type sludge scraping and skimming part, wherein the sedimentation tank body is of a reinforced concrete structure, and the water inlet part, the water outlet part, the sludge discharge part and the chain plate type sludge scraping and skimming part are all arranged in the sedimentation tank body; the water inlet part comprises a gate and a water inlet channel, and water distribution holes are uniformly arranged at the bottom of the water inlet channel; the sludge discharge part comprises a sludge discharge cover plate and a sludge discharge groove, and the sludge discharge cover plate is arranged above the sludge discharge groove; the water outlet part comprises a water outlet channel, and the water outlet channel and the water inlet channel are arranged in parallel; the chain plate type mud scraping and skimming part comprises a chain plate type mud scraper and a skimming pipe, the chain plate type mud scraper is matched with the mud discharging groove, and the skimming pipe is arranged on the surface of the sedimentation tank; the sedimentation tank provided by the invention has better water inlet uniformity, and the cover plate is more convenient to dredge and overhaul.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a rectangular peripheral inlet and outlet sedimentation tank with optimized inlet and outlet water and sludge discharge modes.
Background
The precipitation method is a mature treatment method in the field of sewage treatment at present, separates suspended matters from water by utilizing the characteristic that the suspended matters are heavier than water, and is widely applied to primary treatment and secondary treatment of sewage. The secondary sedimentation tank is an important component of an activated sludge system and mainly has the functions of separating sludge, clarifying mixed liquor, concentrating and refluxing activated sludge. The working effect can directly influence the effluent quality and the return sludge concentration of the activated sludge system.
The large and medium-sized sewage treatment plants mostly adopt circular radial flow sedimentation tanks for mechanical sludge suction, the medium-sized sewage treatment plants also adopt multi-bucket horizontal flow sedimentation tanks, and the small sewage treatment plants mostly adopt vertical flow type. One side of the traditional secondary sedimentation tank is filled with water, and the other side of the traditional secondary sedimentation tank is drained. The structure easily influences the flow state of sewage, greatly disturbs the water body and is not beneficial to quick sedimentation of sludge; the other disadvantage of water inflow from one side is that: the sewage can not be distributed uniformly after entering the secondary sedimentation tank, and the volume of the tank body can not be fully utilized. Therefore, a secondary sedimentation tank with reasonable structure, higher tank body load, even water inlet distribution, good flow state and high tank body volume utilization rate is needed to be provided so as to obtain better production benefit.
Disclosure of Invention
The invention aims to provide a rectangular peripheral inlet and outlet sedimentation tank with optimized water inlet and outlet and sludge discharge modes, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a rectangular peripheral inlet and outlet sedimentation tank with optimized water inlet and outlet and sludge discharge modes comprises a sedimentation tank body, a water inlet part, a water outlet part, a sludge discharge part and a chain plate type sludge scraping and skimming part, wherein the sedimentation tank body is of a reinforced concrete structure, and the water inlet part, the water outlet part, the sludge discharge part and the chain plate type sludge scraping and skimming part are all arranged in the sedimentation tank body; the water inlet part comprises a gate and a water inlet channel, the water inlet channel is arranged along the side edge of the sedimentation tank body, and water distribution holes are uniformly arranged at the bottom of the water inlet channel; the water outlet part comprises a water outlet channel, the water outlet channel is arranged on the inner side of the water inlet channel, and the water outlet channel and the water inlet channel are arranged side by side; the sludge discharge part comprises a sludge discharge groove and a sludge discharge cover plate, the sludge discharge groove is arranged at the bottom of the sedimentation tank body, the sludge discharge cover plate is arranged above the sludge discharge groove, and a hole is formed in the sludge discharge cover plate; a sludge discharge channel is arranged in the middle area of the sedimentation tank body, and the sludge discharge channel is communicated with the sludge discharge groove; the chain plate type mud scraping and skimming part comprises a chain plate type mud scraper and a skimming pipe, the chain plate type mud scraper is arranged above the mud discharging groove, and the skimming pipe is arranged on the surface of the sedimentation tank.
Preferably, a water distribution pipe is embedded in the water distribution hole.
Preferably, a water outlet weir plate is arranged on the inner side of the water outlet channel, and a scum baffle is arranged on the inner side of the water outlet weir plate.
Preferably, the water outlet weir plate is a toothed triangular weir plate.
Preferably, a horizontally arranged baffle is arranged below the water distribution holes, and a water blocking skirt board which is vertically arranged is arranged on the inner side of the baffle.
Preferably, the chain slat type mud scraper is four-axis chain slat type mud scraping device, and the cell body bottom is equipped with the mud scraper, and the scraper blade of chain slat type mud scraper moves along sedimentation tank bottom direction under the rotatory effect of driving chain and final drive shaft, scrapes the mud of bottom of the pool to the mud groove of arranging, scrapes the surface of water dross to the skimming pipe.
Preferably, the main transmission shaft rotates and is driven by a chain wheel, the chain wheel is driven by a motor, and the motor is arranged above the sedimentation tank body.
Preferably, one end of the sludge discharge groove is provided with an inner sleeve, and the inner sleeve is communicated with the sludge discharge channel; a sleeve mud valve is arranged on the inner sleeve.
Compared with the prior art, the invention has the beneficial effects that: the sedimentation tank provided by the invention has compact internal structure arrangement, and the volume of the tank body is fully utilized; based on the horizontal flow sedimentation tank, the operation load is high, and the flow state effect is better.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a transverse cross-sectional view of the present invention;
FIG. 3 is a longitudinal cross-sectional view of the present invention;
reference numbers in the figures: 1. a gate; 2. a water inlet channel; 3. water distribution holes; 4. a baffle plate; 5. a water retaining skirt plate; 6. a motor; 7. a chain plate type mud scraper; 8. a sludge discharge groove; 9. a mud discharge cover plate; 10. a sleeve mud valve; 11. a mud discharge channel; 12. a skimming pipe; 13. a water outlet channel; 14. a scum baffle; 15. and (4) a water outlet weir plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element 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.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-3, the present invention provides a technical solution: a rectangular peripheral inlet and outlet sedimentation tank with optimized water inlet and outlet and sludge discharge modes comprises a sedimentation tank body, a water inlet part, a water outlet part, a sludge discharge part and a chain plate type sludge scraping and skimming part, wherein the sedimentation tank body is of a reinforced concrete structure, and the water inlet part, the water outlet part, the sludge discharge part and the chain plate type sludge scraping and skimming part are all arranged in the sedimentation tank body; the water inlet part comprises a gate 1 and a water inlet channel 2, the water inlet channel 2 is arranged along the side edge of the sedimentation tank body, and water distribution holes 3 are uniformly arranged at the bottom of the water inlet channel 2; the water outlet part comprises a water outlet channel 13, the water outlet channel 13 is arranged at the inner side of the water inlet channel 2, and the water outlet channel 13 and the water inlet channel are arranged side by side; the sludge discharge part comprises a sludge discharge groove 8 and a sludge discharge cover plate 9, the sludge discharge groove 8 is arranged at the bottom of the sedimentation tank body, the sludge discharge cover plate 9 is arranged above the sludge discharge groove 8, and a hole is formed in the sludge discharge cover plate 9; a sludge discharge channel 11 is arranged in the middle area of the sedimentation tank body, and the sludge discharge channel 11 is communicated with the sludge discharge groove 8; the chain plate type mud scraping and skimming part comprises a chain plate type mud scraper 7 and a skimming pipe 12, the chain plate type mud scraper 7 is arranged above the mud discharging groove 8, and the skimming pipe 12 is arranged on the surface of the sedimentation tank.
Furthermore, a water distribution pipe is embedded in the water distribution hole 3.
Further, a water outlet weir plate 15 is arranged on the inner side of the water outlet channel 13, and a scum baffle 14 is arranged on the inner side of the water outlet weir plate 15.
Further, the water outlet weir plate 15 is a toothed triangular weir plate.
Furthermore, a horizontally arranged baffle 4 is arranged below the water distribution holes 3, and a water blocking apron 5 which is vertically arranged is arranged on the inner side of the baffle 4.
Further, the chain plate type mud scraper 7 is a four-axis chain plate type mud scraper, a mud scraper is arranged at the bottom of the tank body, a scraper of the chain plate type mud scraper 7 moves along the direction of the bottom of the sedimentation tank under the action of rotation of the driving chain and the main transmission shaft, mud at the bottom of the tank is scraped to a mud discharge groove 8, and scum on the water surface is scraped to a skimming pipe 12.
Further, the main transmission shaft rotates and is driven by a chain wheel, the chain wheel is driven by a motor 6, and the motor 6 is arranged above the sedimentation tank body.
Further, an inner sleeve is arranged at one end of the sludge discharge groove 8 and is communicated with the sludge discharge channel 11; a sleeve mud valve 10 is arranged on the inner sleeve.
The working principle is as follows: the sedimentation tank body is of a reinforced concrete structure, is integrally of a rectangular structure, and can be arranged in parallel by one or more tank bodies.
Upstream sewage passes through gate 1 and gets into inlet channel 2, and gate 1 can be used to into the cutting off of water, uses side by side like the multiunit sedimentation tank, and the maintenance of a certain set of is maintained etc.. After sewage passes through the water distribution holes 3, in order to prevent the sewage from directly rushing to the bottom of the tank and influencing the flow state in the tank body, the water flow is bent through the baffling baffle 4 and the water-retaining skirt board 5, so that the water consumption is uniformly distributed, the water inlet impact force is reduced, and the effects of reducing the speed and forming large circulation in the area are achieved.
Suspended solid in the sewage enters the sludge discharge groove 8 through the openings with different apertures on the sludge discharge cover plate 9 after rapid precipitation, and sludge in the sludge discharge groove 8 is discharged into the sludge discharge channel 11 through the inner sleeve and the adjustable sleeve sludge discharge valve 10 by a static pressure type sludge discharge method. The chain plate type mud scraper 7 runs along the bottom of the pool by adopting four-shaft chain plate type mud scraping equipment, the scraper runs to the bottom of the pool to scrape mud, and runs to the water surface to scrape slag; sludge at the bottom of the tank is scraped into a sludge discharge groove 8, scum on the surface of the tank is scraped to a skimming pipe 12, and a driving motor 6 of a chain-plate type sludge scraper 7 is arranged at the top of the tank body.
Before the precipitated sewage flows into the water outlet channel 13, the scum is blocked at the inner side of the water outlet channel by the scum baffle 14, and then the treated sewage uniformly flows into the water outlet channel 13 by the toothed triangular water outlet weir plate 15 and finally enters a downstream structure.
The sedimentation tank is still supporting to be provided with control structure, specifically is the PLC control box, and the control box is equipped with alarm signal device, long-range wireless signal transmission module, can carry out signal transmission with central watch-dog and be connected to have the operation on the spot, leave the function that PLC remote control was controlled, make things convenient for control management more.
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 (8)
1. The utility model provides an optimize rectangle week of business turn over water and row's mud mode and advance week and go out sedimentation tank which characterized in that: the sedimentation tank is of a reinforced concrete structure, and the water inlet part, the water outlet part, the mud discharging part and the chain plate type mud scraping and skimming part are all arranged in the sedimentation tank; the water inlet part comprises a gate (1) and a water inlet channel (2), the water inlet channel (2) is arranged along the side edge of the sedimentation tank body, and water distribution holes (3) are uniformly arranged at the bottom of the water inlet channel (2); the water outlet part comprises a water outlet channel (13), the water outlet channel (13) is arranged on the inner side of the water inlet channel (2), and the water outlet channel and the water inlet channel are arranged side by side; the sludge discharge part comprises a sludge discharge groove (8) and a sludge discharge cover plate (9), the sludge discharge groove (8) is arranged at the bottom of the sedimentation tank body, the sludge discharge cover plate (9) is arranged above the sludge discharge groove (8), and a hole is formed in the sludge discharge cover plate (9); a sludge discharge channel (11) is arranged in the middle area of the sedimentation tank body, and the sludge discharge channel (11) is communicated with the sludge discharge groove (8); the chain plate type mud scraping and skimming part comprises a chain plate type mud scraper (7) and a skimming pipe (12), the chain plate type mud scraper (7) is arranged above the mud discharging groove (8), and the skimming pipe (12) is arranged on the surface of the sedimentation tank.
2. The rectangular circumfluence and circumfluence sedimentation tank with optimized water inlet and outlet and sludge discharge modes according to claim 1, characterized in that: and water distribution pipes are embedded in the water distribution holes (3).
3. The rectangular circumfluence and circumfluence sedimentation tank with optimized water inlet and outlet and sludge discharge modes according to claim 1, characterized in that: the inner side of the water outlet channel (13) is provided with a water outlet weir plate (15), and the inner side of the water outlet weir plate (15) is provided with a scum baffle (14).
4. The rectangular peripheral inlet and outlet sedimentation tank with the optimized water inlet and outlet and sludge discharge modes as claimed in claim 3, wherein: the water outlet weir plate (15) is a toothed triangular weir plate.
5. The rectangular circumfluence and circumfluence sedimentation tank with optimized water inlet and outlet and sludge discharge modes according to claim 1, characterized in that: and a horizontally arranged baffling baffle (4) is arranged below the water distribution holes (3), and a vertically arranged water-retaining skirt board (5) is arranged on the inner side of the baffling baffle (4).
6. The rectangular circumfluence and circumfluence sedimentation tank with optimized water inlet and outlet and sludge discharge modes according to claim 1, characterized in that: the chain slat type mud scraper (7) are four-axis chain slat type mud scraping device, and the cell body bottom is equipped with the mud scraper, and the scraper blade of chain slat type mud scraper (7) moves along sedimentation tank bottom direction under the rotatory effect of driving chain and final drive shaft, scrapes the mud of bottom of the pool to mud groove (8), scrapes the surface of water dross to skimming pipe (12).
7. The rectangular circumfluence and circumfluence sedimentation tank with optimized water inlet and outlet and sludge discharge modes according to claim 6, wherein: the main transmission shaft rotates and is driven by a chain wheel, the chain wheel is driven by a motor (6), and the motor (6) is arranged above the sedimentation tank body.
8. The rectangular circumfluence and circumfluence sedimentation tank with optimized water inlet and outlet and sludge discharge modes according to claim 1, characterized in that: an inner sleeve is arranged at one end of the sludge discharge groove (8), and the inner sleeve is communicated with the sludge discharge channel (11); a sleeve mud valve (10) is arranged on the inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010555807.7A CN113797606A (en) | 2020-06-17 | 2020-06-17 | Rectangular peripheral inlet and outlet sedimentation tank with optimized water inlet and outlet and sludge discharge modes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010555807.7A CN113797606A (en) | 2020-06-17 | 2020-06-17 | Rectangular peripheral inlet and outlet sedimentation tank with optimized water inlet and outlet and sludge discharge modes |
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| Publication Number | Publication Date |
|---|---|
| CN113797606A true CN113797606A (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010555807.7A Pending CN113797606A (en) | 2020-06-17 | 2020-06-17 | Rectangular peripheral inlet and outlet sedimentation tank with optimized water inlet and outlet and sludge discharge modes |
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| CN (1) | CN113797606A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487550A (en) * | 2022-10-13 | 2022-12-20 | 茂名市电白区广业环境治理有限公司 | Secondary sedimentation tank circum-entering, week-exiting and transformation device and method |
| WO2023178968A1 (en) * | 2022-06-27 | 2023-09-28 | 中建三局绿色产业投资有限公司 | Biological treatment and sludge-water separation apparatus suitable for underground sewage plant |
| CN115487550B (en) * | 2022-10-13 | 2024-10-01 | 茂名市电白区广业环境治理有限公司 | Device and method for transforming secondary sedimentation tank Zhou Jinzhou |
-
2020
- 2020-06-17 CN CN202010555807.7A patent/CN113797606A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023178968A1 (en) * | 2022-06-27 | 2023-09-28 | 中建三局绿色产业投资有限公司 | Biological treatment and sludge-water separation apparatus suitable for underground sewage plant |
| CN115487550A (en) * | 2022-10-13 | 2022-12-20 | 茂名市电白区广业环境治理有限公司 | Secondary sedimentation tank circum-entering, week-exiting and transformation device and method |
| CN115487550B (en) * | 2022-10-13 | 2024-10-01 | 茂名市电白区广业环境治理有限公司 | Device and method for transforming secondary sedimentation tank Zhou Jinzhou |
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