Sedimentation tank for sewage treatment
By introducing a heating chamber and a multi-stage screen structure into the sewage treatment sedimentation tank, the problem of difficult separation of oil and grease in sewage and poor separation of precipitation is solved, and efficient oil-water separation and fine solid-liquid separation of sewage are achieved.
Patent Information
- Application Number
- CN202421665326.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-07-15
AI Technical Summary
In the existing sewage treatment technology, oil and fat in the sewage are difficult to separate, and the single precipitation separation effect is poor, resulting in insufficient solid-liquid separation during sewage treatment.
A sedimentation tank for sewage treatment was designed, adopting a heating chamber and a multi-stage screen structure. The heating chamber heats the sewage through a heating rod to promote oil-water separation; multi-stage screens (primary and secondary screens) are used to further filter and separate suspended matter.
The sewage is heated through the heating chamber to achieve oil-water separation, and the multi-stage screen improves the sewage separation effect and significantly improves the sewage purification effect.
Smart Images
Figure CN222556765U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage sedimentation, in particular to a sedimentation tank for sewage treatment. Background Art
[0002] The sedimentation tank used for sewage treatment separates suspended solids and sediments in sewage through gravity sedimentation, so that the sewage can be initially purified. It can effectively remove impurities such as silt, particulate matter, and organic matter in the sewage, reducing the load of subsequent treatment processes.
[0003] In the existing technology for treating domestic sewage, the solid-liquid treatment method in sewage is relatively simple, and the separation method is to separate the solid suspended matter and the sediment by gravity sedimentation for filtration. However, the grease in the sewage is difficult to separate, and the single sedimentation separation effect is not good. Therefore, a sedimentation tank for sewage treatment is proposed to solve the above problems. Utility Model Content
[0004] In order to make up for the above deficiencies, the utility model provides a sedimentation tank for sewage treatment, aiming to improve the problems in the prior art that the sewage sedimentation mechanism occupies too large an area and the solid-liquid separation is not detailed enough during the sewage treatment process.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A sedimentation tank for sewage treatment comprises a tank body, wherein a primary dirt baffle is fixedly connected to the upper part of the tank body near the front side, a primary chute is fixedly connected to the upper end of the middle front side of the tank body, a primary screen is slidably connected in the primary chute, a heating chamber is fixedly connected to the lower end of the middle front side of the tank body, the chamber of the heating chamber passes through one side of the tank body, a fixed cover is engaged with one side of the outside of the heating chamber, a plurality of heating rods are fixedly connected to the inner side of the fixed cover at equal distances, a secondary dirt baffle is fixedly connected to the middle part of the bottom end of the tank body, a secondary chute is fixedly connected to the middle rear side of the tank body, and a secondary screen is slidably connected in the secondary chute.
[0007] As a further description of the above technical solution:
[0008] A discharge inlet is fixedly connected to the upper middle portion of the front end of the pool body, and a water outlet is fixedly connected to the upper middle portion of the rear end of the pool body.
[0009] As a further description of the above technical solution:
[0010] The top of the primary screen is fixedly connected with a first connecting piece, and the top of the secondary screen is fixedly connected with a second connecting piece.
[0011] As a further description of the above technical solution:
[0012] A fixed base is fixedly connected to the bottom end of the rear side of the interior of the pool body, and the fixed base corresponds to the secondary slide groove.
[0013] As a further description of the above technical solution:
[0014] A primary sewage outlet is fixedly connected to the front end of the bottom right side of the pool body, and the primary sewage outlet is located at the bottom side of the primary sewage baffle.
[0015] As a further description of the above technical solution:
[0016] A secondary sewage outlet is fixedly connected to the middle end of the bottom of the pool body, and the secondary sewage outlet is located between the heating chamber and the secondary sewage baffle.
[0017] As a further description of the above technical solution: a three-stage sewage outlet is fixedly connected to the rear end of the bottom of the pool body, and the three-stage sewage outlet is located on the fixed base and the rear inner wall of the pool body.
[0018] As a further description of the above technical solution:
[0019] The bottom end of the secondary screen is in contact with the fixed base, and the secondary screen corresponds to the secondary chute.
[0020] The utility model has the following beneficial effects:
[0021] 1. In the utility model, the heating chamber is electrically connected to drive the heating rod to work, so that the heating chamber is heated to heat the sewage. Since the thermal expansion coefficients of water and grease are different, and the increase in temperature will reduce the viscosity of the liquid, the movement of grease and water is more active, which further promotes the occurrence of grease and water stratification, thereby achieving rapid stratification of grease in sewage.
[0022] 2. In the utility model, by adding a primary screen and a secondary screen in the sedimentation tank, while the sewage is precipitated and the sediment is separated, some suspended matter separated by sedimentation is filtered and separated, thereby further improving the sewage separation effect, and the primary screen and the secondary screen can be easily pulled out from the top, which is convenient for cleaning the filter and preventing clogging. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a three-dimensional schematic diagram of a sedimentation tank for sewage treatment proposed by the utility model;
[0024] Figure 2 This is a schematic diagram of the planing structure of a sedimentation tank for sewage treatment proposed by the utility model;
[0025] Figure 3 This is a structural schematic diagram of a sedimentation tank for sewage treatment proposed by the utility model, viewed from the right rear.
[0026] Legend:
[0027] 1. Discharge inlet; 2. Heating rod; 3. Primary screen; 4. Primary dirt baffle; 5. Secondary dirt baffle; 6. First connecting piece; 7. Secondary screen; 8. Water outlet; 9. Pool body; 10. Second connecting piece; 11. Fixed base; 12. Fixed cover; 13. Primary chute; 14. Secondary chute; 15. Primary sewage outlet; 16. Secondary sewage outlet; 17. Tertiary sewage outlet; 18. Heating chamber. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0029] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0030] Reference Figure 1-Figure 2The utility model provides an embodiment: a sedimentation tank for sewage treatment includes a tank body 9, a primary dirt baffle 4 is fixedly connected to the upper part of the tank body 9 near the front side, which can prevent solid and liquid dirt from directly passing through the primary screen 3, a primary chute 13 is fixedly connected to the upper end of the middle front side of the tank body 9, and the primary screen 3 can be drawn out and cleaned through the chute, and the primary screen 3 is slidably connected in the first chute 13 to filter solid dirt with a larger diameter, and a heating chamber 18 is fixedly connected to the lower end of the middle front side of the tank body 9, and the heating chamber The chamber 18 runs through one side of the pool body 9, and a fixed cover plate 12 is engaged on one side of the outside of the heating chamber 18. A plurality of heating rods 2 are fixedly connected to the inside of the fixed cover plate 12 at equal intervals. A secondary dirt baffle 5 is fixedly connected to the middle of the bottom end of the pool body 9 to prevent dirt with a smaller diameter from passing through the secondary screen 7. The bottom of the secondary dirt baffle 5 is in contact with the fixed base 11. A secondary chute 14 is fixedly connected to the middle and rear side of the inside of the pool body 9. A secondary screen 7 is slidably connected in the secondary chute 14. The secondary screen 7 is pulled out and cleaned through the secondary chute 14. A heating rod 2 is fixedly connected to one side of the fixed cover plate 12, so that the heating rod 2 can heat the sewage through the heating chamber 18 to separate oil and water.
[0031] Reference Figure 3 A primary sewage outlet 15 is fixedly connected to the front end of the bottom right side of the pool body 9, and the primary sewage outlet 15 is located on the bottom side of the primary sewage baffle 4, and can discharge solid sludge with a larger diameter. A secondary sewage outlet 16 is fixedly connected to the middle end of the bottom of the pool body 9, and the secondary sewage outlet 16 is located between the heating chamber 18 and the secondary sewage baffle 5. A tertiary sewage outlet 17 is fixedly connected to the rear end of the bottom of the pool body 9, and the tertiary sewage outlet 17 is located between the fixed base 11 and the rear inner wall of the pool body 9, and can be used to discharge solid sludge with a smaller diameter.
[0032] Working principle: sewage is discharged into the tank body 9 through the discharge inlet 1, solid sludge is precipitated to the bottom through the primary dirt baffle 4, and discharged through the primary sewage outlet 15, the sewage is heated by the heating rod 2 to achieve oil-water separation, and the liquid sewage enters the middle of the tank body 9 through the primary screen 3, and tiny solids are precipitated to the bottom through the secondary dirt baffle and discharged through the secondary sewage outlet 16, the liquid sewage is filtered again through the secondary screen 7, and finally the upper clear night is discharged through the outlet 8 after precipitation by the flocculant, and the bottom sludge is discharged through the tertiary sewage outlet 17, the primary screen 3 and the secondary screen 7 can be pulled upward by pulling the first connecting piece 6 and the second connecting piece 10 at the upper end respectively, and can be cleaned separately after being pulled out. After cleaning, they can slide to the corresponding position through the slide groove.
[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A sedimentation tank for sewage treatment, comprising a tank body (9), characterized in that: A primary dirt baffle (4) is fixedly connected to the upper part of the interior of the pool body (9) near the front side, a primary slide groove (13) is fixedly connected to the upper end of the middle front side of the interior of the pool body (9), a primary screen (3) is slidably connected to the first slide groove (13), a heating chamber (18) is fixedly connected to the lower end of the middle front side of the interior of the pool body (9), the chamber of the heating chamber (18) passes through one side of the pool body (9), a fixed cover plate (12) is engaged on one side of the outside of the heating chamber (18), a plurality of heating rods (2) are fixedly connected to the inner side of the fixed cover plate (12) at equal intervals, a secondary dirt baffle (5) is fixedly connected to the middle part of the bottom end of the pool body (9), a secondary slide groove (14) is fixedly connected to the middle rear side of the interior of the pool body (9), and a secondary screen (7) is slidably connected to the secondary slide groove (14).
2. A sedimentation tank for sewage treatment according to claim 1, characterized in that: The upper middle portion of the front end of the pool body (9) is fixedly connected with a discharge inlet (1), and the upper middle portion of the rear end of the pool body (9) is fixedly connected with a water outlet (8).
3. A sedimentation tank for sewage treatment according to claim 1, characterized in that: The top of the primary screen (3) is fixedly connected to a first connecting piece (6), and the top of the secondary screen (7) is fixedly connected to a second connecting piece (10).
4. A sedimentation tank for sewage treatment according to claim 1, characterized in that: A fixed base (11) is fixedly connected to the bottom end of the rear side of the pool body (9), and the fixed base (11) corresponds to the secondary slide groove (14).
5. A sedimentation tank for sewage treatment according to claim 1, characterized in that: A primary sewage outlet (15) is fixedly connected to the front end of the bottom right side of the pool body (9), and the primary sewage outlet (15) is located on the bottom side of the primary sewage baffle (4).
6. A sedimentation tank for sewage treatment according to claim 1, characterized in that: A secondary sewage outlet (16) is fixedly connected to the middle end of the bottom of the tank body (9), and the secondary sewage outlet (16) is located between the heating chamber (18) and the secondary sewage baffle (5).
7. A sedimentation tank for sewage treatment according to claim 1, characterized in that: A third-level sewage outlet (17) is fixedly connected to the rear end of the bottom of the pool body (9), and the third-level sewage outlet (17) is located between the fixed base (11) and the rear inner wall of the pool body (9).
8. A sedimentation tank for sewage treatment according to claim 4, characterized in that: The bottom end of the secondary screen (7) is in contact with the fixed base (11).