Surface pollution discharge structure of mechanical stirring clarification tank
By designing a surface sewage discharge structure in the mechanical stirring and clarification pool, including sewage discharge gaps and sewage guidance devices, the problem of difficulty in cleaning floating objects in the clean water area is solved, automatic sewage discharge is achieved, and cleaning efficiency and water quality protection is improved.
Patent Information
- Application Number
- CN202422125922.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-30
AI Technical Summary
There are often floating objects on the surface of the clean water area of the mechanical stirring clearing pool, which is difficult to clean efficiently in the existing technology, resulting in damage to the water quality.
Design a surface sewage discharge structure of a mechanical stirring and clarification pool, including the pool body, water collection tank, water filter hole, drain hole, sewage discharge gap and sewage guidance device, and automatically discharge floating debris through the sewage discharge gap and sewage guidance device to improve cleaning convenience.
By automatically discharging floating debris, the convenience and efficiency of cleaning are improved, the time and cost of manual salvage are reduced, and the damage to water quality is prevented.
Smart Images
Figure CN223002837U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of water treatment, and in particular to a surface sewage discharge structure of a mechanical agitation clarification tank. Background Art
[0002] Mechanical stirring clarifiers are widely used in the field of water quality pretreatment. Through the principle of coagulation and sedimentation, it can effectively remove the silt in the water body, reduce turbidity, and make the water clear. The clarifier stands above the ground as a whole. The material is reinforced concrete and the shape is a cone, which looks like a large bowl. Its operation process is briefly described as follows: the raw water with coagulant added enters horizontally from the middle of the clarifier through the water inlet pipe, and flows evenly into the first reaction chamber of the clarifier through the annular water inlet trough. The first reaction chamber is located in the lower area of the center of the clarifier. In the first reaction chamber, due to the stirring of the blades on the agitator, the incoming water and a large amount of bottom mud are mixed evenly, and the water flow with mud is lifted to the second reaction chamber by the turbine on the agitator. The second reaction chamber is located above the first reaction chamber. The water flows through the diversion chamber next to the first reaction chamber and enters the surrounding separation chambers. In the separation chamber, the mud and water are separated by the filter inclined plate, the mud sinks to the bottom of the pool, and the clean water rises to the clean water area, and then flows to the outlet through the sump, realizing the clarification of the raw water.
[0003] The disadvantage of the existing mechanical stirring clarifier is that there are occasional floating objects on the surface of the clear water area. After the clarifier is emptied and the filter inclined plate is washed with high-pressure water, the fine alum flowers on the filter inclined plate that are not completely washed away float in the clear water area when the clarifier is put into operation; in summer, algae reproduce vigorously, and some algae will fall off the filter inclined plate and float in the clear water area; when the raw water temperature is high, the microorganisms in the water body will secrete more organic matter to form oil bubbles floating in the clear water area, etc. When the clarifier is operating normally, the water level in the clear water area is slightly higher than the filter hole of the water collection tank, and the filter hole of the water collection tank is designed with small holes for the purpose of blocking impurities. Therefore, the floating objects on the surface of the clear water area cannot be discharged and will accumulate more and more, and can only be salvaged and cleaned by humans. The fine alum flowers are too fine to be salvaged by the salvage net, which is time-consuming and labor-intensive, and it is difficult to salvage them clean. If they are not cleaned in time, they will damage the water quality. Utility Model Content
[0004] In order to improve the problem that floating debris in the clear water area of a clarifier is difficult to clean, the present application provides a surface sewage discharge structure of a mechanically agitated clarifier.
[0005] The surface sewage discharge structure of a mechanical stirring clarifier provided in this application adopts the following technical solution:
[0006] A surface sewage discharge structure of a mechanical stirring clarifier, comprising:
[0007] Pool body;
[0008] A water collecting tank is located at the top of the tank body and is lower than the top surface of the tank body;
[0009] Water filtering holes, multiple in number, are provided on the side wall of the water collecting tank for the clear water in the pool body to enter the water collecting tank;
[0010] A drain hole is provided on the water collecting tank for draining the clear water in the water collecting tank;
[0011] A sewage discharge notch is provided at the top of the side wall of the pool body for discharging floating debris in the pool body.
[0012] Furthermore, a sewage guiding device for guiding sewage is provided on the pool body, and the sewage discharge notch is communicated with the sewage guiding device.
[0013] Furthermore, the sewage guiding device includes a sewage discharge ring groove, a sewage discharge pipe and a sewage discharge valve. The sewage discharge ring groove is provided on the side wall of the pool body, the sewage discharge notch is communicated with the sewage discharge ring groove, the sewage discharge pipe is provided at the bottom of the sewage discharge ring groove, and the sewage discharge valve is used to control the opening amplitude of the sewage discharge pipe.
[0014] Furthermore, a sewage discharge hopper is provided between the sewage discharge ring groove and the sewage discharge pipe, and the sewage discharge hopper is communicated with both the sewage discharge ring groove and the sewage discharge pipe.
[0015] Furthermore, the sewage discharge hopper is in a contracted shape from high to low.
[0016] Furthermore, the sewage discharge hopper is arranged in a manner that it fits closely to the side wall of the pool body.
[0017] Furthermore, multiple sewage discharge pipes, sewage discharge hoppers and sewage discharge valves are arranged in a ring along the side wall of the pool body.
[0018] Furthermore, multiple sewage discharge notches are provided, and the multiple sewage discharge notches and the multiple sewage discharge hoppers correspond to each other one by one.
[0019] Furthermore, the water collecting tank includes an annular groove and a plurality of radial grooves arranged around the circumference of the annular groove. The radial grooves are communicated with the water collecting tank. A clear water area is formed between the inner wall of the pool body, the outer wall of the annular groove and the adjacent radial grooves. The multiple sewage discharge notches correspond to the multiple clear water areas one by one.
[0020] Furthermore, the bottom surface of the sewage discharge notch is higher than the water filtering hole.
[0021] In summary, the present application includes at least one of the following beneficial technical effects:
[0022] 1. By providing the sewage discharge notch, the floating debris located in the clear water area is automatically discharged through the sewage discharge notch, thereby improving the convenience of cleaning the floating debris;
[0023] 2. By setting multiple sewage discharge annular grooves, sewage pipes and sewage valves, it is convenient to centrally treat the sewage mixed with floating debris, further improving the convenience of cleaning floating debris; and by reasonably adjusting the opening amplitude of the sewage valve, it is possible to reduce the waste of water resources while ensuring the sewage discharge effect.
[0024] 3. By setting a sewage discharge hopper that shrinks from high to low, it is difficult for floating objects to accumulate on the inner wall of the sewage discharge hopper, thus effectively improving the sewage discharge effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0027] Figure 2 It is a top view of an embodiment of the present application.
[0028] Figure 3 It is along Figure 2 The sectional structure schematic diagram of the A-A line in
[0029] Reference numerals: 1, pool body; 11, sewage discharge notch; 12, drain pipe; 13, water inlet pipe; 2, water collection tank; 21, radial groove; 211, water filtering hole; 212, drain hole; 22, annular groove; 3, sewage discharge annular groove; 4, sewage pipe; 5, sewage valve; 6, sewage discharge hopper. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] To make the objectives, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention with reference to the drawings in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.
[0031] The embodiment of the present application discloses a surface sewage discharge structure of a mechanical agitation clarifier. Please refer to Figures 1-3, the surface sewage discharge structure of the mechanical agitation clarifier includes a pool body 1 and a water collecting trough 2. The pool body 1 is in a bowl shape as a whole, that is, the pool body 1 includes a cylindrical base and a frustum-shaped pool body with a larger top and a smaller bottom. A mechanical agitation device and a filtering device are provided in the pool body 1, which are prior arts and will not be elaborated here. The water collecting trough 2 is arranged at the top of the pool body 1. A plurality of water filtering holes 211 are opened on the water collecting trough 2. The water collecting trough 2 is communicated with a drain pipe 12, and the pool body 1 is communicated with a water inlet pipe 13. The water in the clear water area at the top of the pool body 1 flows into the water collecting trough 2 through the water filtering holes 211 and is discharged through the drain pipe 12. A sewage discharge notch 11 is arranged at the top of the pool body 1.
[0032] When using the clarifier, water is continuously replenished into the clarifier through the water inlet pipe 13. The raw water floats to the clear water area of the pool body 1 through the agitation device and the filtering device. The clear water enters the water collecting trough 2 through the water filtering holes 211 and is discharged. A part of the clear water carries floating debris and is discharged through the sewage discharge notch 11, so that the floating debris floating on the water surface flows out of the pool body 1 through the sewage discharge notch 11, thereby reducing the possibility of floating debris accumulating in the pool body 1. There is no need for manual fishing and cleaning, and the floating debris can be discharged through the sewage discharge notch 11 by the water flow, thus facilitating the cleaning of the floating debris in the clarifier.
[0033] In order to facilitate the collection and centralized treatment of floating debris, a sewage guiding device is arranged on the pool body 1 to guide the water flow carrying floating debris, which can not only facilitate the centralized treatment of floating impurities, but also ensure the cleanliness of the surrounding environment of the clarifier.
[0034] Specifically, the sewage guiding device includes a sewage discharge ring groove 3, a sewage discharge pipe 4 and a sewage discharge valve 5. The sewage discharge ring groove 3 is welded and fixed at the top of the side wall of the pool body 1. The sewage discharge notch 11 is communicated with the sewage discharge groove. The sewage discharge pipe 4 is communicated with the bottom of the sewage discharge ring groove 3. The sewage discharge valve 5 is arranged on the sewage discharge pipe 4 and is used to control the opening amplitude of the sewage discharge pipe 4. The sewage discharge valve 5 is a manual valve, including but not limited to ball valves, butterfly valves or flap valves, etc. As an alternative embodiment, the sewage discharge valve 5 can also adopt an electric valve.
[0035] When sewage discharge is required, the sewage discharge valve 5 is opened, so that the water in the sewage discharge ring groove 3 continuously flows into the sewage discharge pipe 4, and the floating debris on the water surface in the pool body 1 flows towards the sewage discharge notch 11 to realize sewage discharge. After the sewage discharge is completed, the sewage discharge valve 5 is closed, and the flow rate of the water inlet pipe 13 is controlled so that the water level in the pool body 1 is lower than the drainage notch, thereby reducing the waste of water resources.
[0036] The bottom surface of the sewage discharge notch 11 is higher than the water filtering holes 211 (please refer to Figure 3 ), so that when sewage discharge is carried out, the liquid level in the pool body 1 is always higher than the water filtering holes 211, and the pool body 1 normally drains water into the water collecting trough 2, improving the drainage efficiency of the clarifier.
[0037] In order to increase the sewage discharge efficiency of the sewage guiding device, a sewage hopper 6 is arranged between the sewage discharge annular groove 3 and the sewage discharge pipe 4. The sewage hopper 6 can increase the water capacity of the sewage discharge annular groove 3, so that the floating sundries in the pool body 1 quickly fall into the sewage hopper 6, thereby greatly improving the sewage discharge efficiency.
[0038] In order to reduce the possibility of floating sundries accumulating in the sewage hopper 6, the sewage hopper 6 is arranged in a contracted shape from top to bottom, that is, the whole sewage hopper 6 is in an inverted triangular shape. The sewage discharge pipe 4 is communicated with the bottom of the sewage hopper 6, so that the floating sundries in the sewage hopper 6 are concentrated and flow towards the sewage discharge pipe 4 under the impact of water flow.
[0039] The sewage hopper 6 is arranged in a manner that fits the side wall of the pool body 1, so that the fitting part between the pool body 1 and the sewage hopper 6 can serve as the inner wall of the sewage hopper 6, which can save materials, and the inclined sewage hopper 6 can save space and is convenient for on-site layout.
[0040] Since the area of the clarifying tank is large, in order to improve the sewage discharge efficiency, a plurality of sewage discharge gaps 11 are arranged in a circumferential ring along the circumference of the pool body 1, so that the floating sundries in different directions in the pool body 1 flow towards different sewage discharge gaps 11, reducing the outflow distance of the floating sundries and also saving the water consumption for sewage discharge. Corresponding sewage discharge pipes 4, sewage hoppers 6 and sewage discharge valves 5 are provided in plurality, and the sewage discharge gaps 11 and the sewage hoppers 6 correspond to each other one by one.
[0041] Specifically, the water collecting tank 2 includes an annular groove 22 and a plurality of radial grooves 21. The annular groove 22 is coaxially arranged with the pool body 1. The plurality of radial grooves 21 are arranged at equal intervals on the circumference of the annular groove 22 and are communicated with the annular groove 22. In this embodiment, four radial grooves 21 are provided, and the included angle between adjacent radial grooves 21 is 90°. A clear water area is formed between the inner wall of the pool body 1, the annular groove 22 and the adjacent radial grooves 21. Corresponding sewage discharge gaps 11 are provided in four numbers, and the four sewage discharge gaps 11 correspond to the four clear water areas one by one. The floating sundries in different clear water areas flow towards different sewage discharge gaps 11, thereby greatly improving the sewage discharge efficiency.
[0042] When the sewage discharge effect is not good, the flow rate of the water inlet pipe 13 can be reduced, and the four sewage discharge valves 5 can be fully opened, so that the water level in the sewage hopper 6 drops, thereby increasing the head at the sewage discharge gap 11 and making the floating sundries flow faster, effectively improving the sewage discharge efficiency.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A surface sewage discharge structure of a mechanical stirring clarifier, characterized in that: include: Pool body; A water collecting tank is located at the top of the tank body and is lower than the top surface of the tank body; A plurality of water filter holes are provided, which are opened on the side wall of the water collecting tank and are used for allowing clean water from the pool body to enter the water collecting tank; A drainage hole is provided on the water collecting tank and is used to discharge the clean water in the water collecting tank; The sewage discharge notch is arranged at the top of the side wall of the pool body and is used to discharge floating debris in the pool body.
2. The surface sewage discharge structure of a mechanical stirring clarifier according to claim 1, characterized in that: The pool body is provided with a sewage guiding device for guiding sewage, and the sewage discharge gap is communicated with the sewage guiding device.
3. The surface sewage discharge structure of a mechanical stirring clarifier according to claim 2 is characterized in that: The sewage guiding device includes a sewage ring groove, a sewage pipe and a sewage valve. The sewage ring groove is arranged on the side wall of the pool body, the sewage notch is connected to the sewage ring groove, the sewage pipe is arranged at the bottom of the sewage ring groove, and the sewage valve is used to control the opening range of the sewage pipe.
4. The surface sewage discharge structure of a mechanical stirring clarifier according to claim 3 is characterized in that: A sewage discharge bucket is arranged between the sewage discharge ring groove and the sewage discharge pipe, and the sewage discharge bucket is communicated with the sewage discharge ring groove and the sewage discharge pipe.
5. The surface sewage discharge structure of a mechanical stirring clarifier according to claim 4, characterized in that: The sewage discharge bucket is in a shrinking shape from high to low.
6. The surface sewage discharge structure of a mechanical stirring clarifier according to claim 5, characterized in that: The sewage hopper is arranged in close contact with the side wall of the tank body.
7. The surface sewage discharge structure of a mechanical stirring clarifier according to claim 6, characterized in that: The sewage pipe, sewage bucket and sewage valve are arranged in a plurality along the side wall of the tank body.
8. The surface sewage discharge structure of a mechanical stirring clarifier according to claim 7, characterized in that: There are multiple sewage discharge gaps, and the multiple sewage discharge gaps correspond to the multiple sewage discharge buckets one by one.
9. The surface sewage discharge structure of a mechanical stirring clarifier according to claim 8, characterized in that: The water collecting trough includes an annular groove and a plurality of radial grooves arranged around the annular groove. The radial grooves are connected to the water collecting trough. A clean water area is formed between the inner wall of the pool body, the outer wall of the annular groove and adjacent radial grooves. The plurality of sewage discharge gaps correspond one-to-one to the plurality of clean water areas.
10. The surface sewage discharge structure of a mechanical stirring clarifier according to claim 1, characterized in that: The bottom surface of the sewage discharge notch is higher than the water filtering hole.