A small water amount horizontal flow pool discharges residue and water weir, drainage equipment and sewage treatment system

Abstract

The utility model provides a kind of small water volume advection pool deslagging effluent weir, drainage equipment and sewage treatment system, it includes: drainage pool, water inlet hole and first drain hole are equipped on it, drainage pool includes bottom plate, water passing side wall and stop side wall, water passing side wall and stop side wall are vertically connected to bottom plate, and the extension height of stop side wall is greater than the extension height of water passing side wall;Collection pool, the side wall of collection pool is not higher than water passing side wall, second drain hole is equipped on it;Drainage assembly, it includes first outlet pipe and second outlet pipe, first outlet pipe is communicated with first drain hole, outlet valve is equipped on it, second outlet pipe is communicated with second drain hole, and scum filter is equipped on it.The utility model limits water passing side wall, stop side wall and collection pool liquid level height, and only by controlling outlet valve can realize complete deslagging process, thus have the advantages of convenient regulation and control, simple operation, good deslagging effect and wide application range etc.

Description

Technical Field

[0001] This utility model relates to the technical field of drainage systems, specifically to a slag discharge weir for a small-volume horizontal flow pool, drainage equipment, and a sewage treatment system. Background Technology

[0002] In wastewater treatment systems, the horizontal flow sedimentation tank serves as the core solid-liquid separation device, and the performance of its effluent weir directly affects the final effluent quality. To prevent foam and scum floating on the water surface from being discharged with the water flow, affecting subsequent treatment processes or causing substandard water quality, the foam and scum filtering function of the effluent weir has become a key technical point.

[0003] Currently, for high-flow-rate wastewater treatment scenarios, the industry commonly uses large-scale driven scraper devices to scrape foam and scum at the outlet. These devices are typically equipped with high-power drive motors, complex transmission systems, and large scraper assemblies, using mechanical motion to scrape foam and scum off the water surface from the effluent area. However, this technical solution has significant drawbacks: First, the equipment is expensive; the purchase, installation, and maintenance costs of large-scale driven scraper devices account for a large proportion of wastewater treatment project costs, increasing the company's operating costs. Second, the equipment is bulky and requires a large amount of space, making it difficult to meet the site layout requirements of wastewater treatment plants with limited land resources. Third, the installation and commissioning process is complex, involving the collaborative work of multiple disciplines such as mechanics and electrical engineering, resulting in a long installation cycle and high technical requirements for installers. Fourth, this type of equipment is mainly designed for high-flow-rate conditions. When applied to low-flow horizontal flow sedimentation tanks, due to insufficient water flow dynamics, the scraper movement can actually disturb the water, causing settled particles to resuspend. Furthermore, the high energy consumption of the equipment is incompatible with low-flow-rate treatment scenarios, leading to energy waste.

[0004] With the increasing popularity of small-scale sewage treatment plants such as community sewage treatment stations and small factory wastewater treatment units, the application of low-flow horizontal sedimentation tanks is becoming more and more widespread. Therefore, there is an urgent need to develop a foam- and slag-blocking effluent weir that is simple in structure, low in cost, occupies little space, and is suitable for low-flow horizontal sedimentation tanks to meet the current diverse sewage treatment needs. Summary of the Invention

[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problem that it is difficult to discharge slag in the existing technology for small flow effluent weirs, and to provide a slag discharge effluent weir for small flow horizontal pools, drainage equipment and sewage treatment system.

[0006] To solve the above-mentioned technical problems, this utility model provides a slag discharge weir for a small-volume horizontal flow tank, comprising: a drainage tank, wherein the drainage tank is provided with at least one inlet hole and at least one first drainage hole, the inlet hole being connected to the water to be discharged, the drainage tank including a bottom plate and a water-passing sidewall and a stop sidewall disposed on opposite sides of the bottom plate, the water-passing sidewall and the stop sidewall being vertically connected to the bottom plate, and the extension height of the stop sidewall being greater than the extension height of the water-passing sidewall; a collection tank, wherein the collection tank is disposed in close contact with the water-passing sidewall, and the sidewall of the collection tank is not higher than the water-passing sidewall, the collection tank being provided with at least one second drainage hole; and a drainage assembly, wherein the drainage assembly includes a first outlet pipe and a second outlet pipe, the first outlet pipe being connected to the first drainage hole and provided with an outlet valve, the second outlet pipe being connected to the second drainage hole and provided with a scum filter.

[0007] In one embodiment of the present invention, the first drain hole is disposed above the water inlet hole.

[0008] In one embodiment of this utility model, the water inlet is disposed on the bottom plate, and the first drain hole is disposed on the side wall of the drainage pool.

[0009] In one embodiment of the present invention, the drainage pool is provided with a plurality of first drainage holes, the first water outlet pipe includes a main pipe and a plurality of connecting pipes, the plurality of connecting pipes are all connected to the main pipe and are connected to the plurality of first drainage holes one by one, and the water outlet valve is provided on the main pipe.

[0010] In one embodiment of this utility model, the drain end of the first water outlet pipe is connected to the drain end of the second water outlet pipe.

[0011] In one embodiment of this utility model, the slag discharge weir of the small-volume horizontal flow pool further includes a control mechanism, and the discharge valve is connected to the control mechanism.

[0012] In one embodiment of this utility model, the scum filter element is a hydraulic filter screen.

[0013] This utility model also provides a drainage device, which includes the above-mentioned small-volume horizontal flow pool slag discharge weir.

[0014] This utility model also provides a sewage treatment system, which includes the above-mentioned small-volume horizontal flow tank sludge discharge weir.

[0015] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0016] The small-volume horizontal flow tank sludge discharge weir, drainage equipment, and sewage treatment system described in this utility model perform conventional drainage through the drainage tank and the first outlet pipe. When the sewage contains a large amount of scum and foam, sludge discharge treatment is required. This can be achieved by controlling the outlet valve to raise the liquid level inside the drainage tank, allowing the scum to enter the collection tank under the influence of the water flow, thereby improving the cleanliness of the drainage tank's internal environment. The sewage entering the collection tank is then filtered and discharged through the second outlet pipe and scum filter, thus completing the sludge discharge process in the small-volume horizontal flow tank. In the above process, based on the limitations of the water-passing sidewall, the stop sidewall, and the liquid level in the collection tank, the complete sludge discharge process can be achieved simply by controlling the outlet valve. Compared to conventional horizontal flow tank outlet weirs, this application has advantages such as ease of control, simple operation, good sludge discharge effect, and wide applicability, and has broad application prospects in this industry. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the slag discharge weir of the small-volume horizontal flow tank in a preferred embodiment of the present invention;

[0019] Figure 2 yes Figure 1 The diagram shows the structure of the slag discharge weir of a small-volume horizontal flow tank under normal drainage conditions.

[0020] Figure 3 yes Figure 1 The diagram shows the structure of the slag discharge weir of the small-volume horizontal flow tank in the slag discharge state.

[0021] Figure 4 yes Figure 1 The diagram shows the structure of the small-volume horizontal flow tank after the slag discharge weir.

[0022] Figure 5 This is a schematic diagram of the slag discharge weir of a small-volume horizontal flow pool in another embodiment of this utility model.

[0023] Explanation of reference numerals in the accompanying drawings: 100, drainage tank; 110, water-passing sidewall; 120, stop sidewall; 130, bottom plate; 140, first drainage hole; 150, water inlet hole; 200, collection tank; 210, second drainage hole; 300, drainage assembly; 310, first outlet pipe; 311, main pipeline; 312, connecting pipeline; 320, second outlet pipe; 330, outlet valve; 340, scum filter element; 400, scum. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0025] Example 1:

[0026] See Figure 1 As shown, this embodiment provides a slag discharge weir for a small-volume horizontal flow tank, comprising: a drainage tank 100, wherein the drainage tank 100 is provided with at least one inlet hole 150 and at least one first discharge hole 140, the inlet hole 150 being in communication with the water to be discharged, the drainage tank 100 including a bottom plate 130 and a water-passing sidewall 110 and a stop sidewall 120 disposed on opposite sides of the bottom plate 130, the water-passing sidewall 110 and the stop sidewall 120 being vertically connected to the bottom plate 130, and the extension height of the stop sidewall 120 being greater than that of the water-passing sidewall 110. The extension height is 0; the collection pool 200 is disposed in close contact with the water-passing sidewall 110, and the sidewall of the collection pool 200 is not higher than the water-passing sidewall 110, and the collection pool 200 is provided with at least one second drain hole 210; the drainage assembly 300 includes a first water outlet pipe 310 and a second water outlet pipe 320, the first water outlet pipe 310 is connected to the first drain hole 140 and is provided with a water outlet valve 330, the second water outlet pipe 320 is connected to the second drain hole 210 and is provided with a scum filter element 340.

[0027] The sludge discharge weir of the small-volume horizontal flow tank described in this utility model performs conventional drainage through the drainage tank 100 and the first outlet pipe 310. When the sewage contains a large flow of scum 400 and foam, sludge discharge treatment is required for the liquid to be discharged. At this time, the liquid level inside the drainage tank 100 can be raised by controlling the outlet valve 330, so that the scum 400 in the drainage tank 100 can enter the collection tank 200 under the drive of the water flow, thereby improving the cleanliness of the internal environment of the drainage tank 100. The sewage entering the collection tank 200 can then be filtered and discharged through the second outlet pipe 320 and the scum filter element 340, thus completing the sludge discharge process of the small-volume horizontal flow tank. In the above process, based on the limitation of the water passage side wall 110, the stop side wall 120 and the liquid level height of the collection tank 200, the complete sludge discharge process can be achieved simply by controlling the outlet valve 330. Compared with conventional horizontal flow pool effluent weirs, this application has the advantages of easy control, simple operation, good slag removal effect and wide applicability, and has broad application prospects in this industry.

[0028] In this embodiment, the drainage pool 100 is preferably a hollow cubic structure. The stop sidewall 120 and the water passage sidewall 110 are respectively provided on both sides of the width direction of the bottom plate 130. The stop sidewall 120 and the water passage sidewall 110 can stop the liquid inside the drainage pool 100. When it is necessary to overflow the wastewater from the drainage pool 100 into the collection pool 200, the wastewater can flow into the collection pool 200 from the side of the lower water passage sidewall 110.

[0029] Furthermore, in this embodiment, the water inlet 150 is disposed on the bottom plate 130, and the first drain hole 140 is disposed on the side wall of the drainage pool 100, thereby positioning the first drain hole 140 above the water inlet 150. Based on the above structure, wastewater in this embodiment can enter from the bottom of the drainage pool 100 and uniformly raise the internal liquid level of the drainage pool 100. Specifically, in different embodiments, the position and number of the first drain hole 140 and the water inlet 150 can be adjusted according to actual usage requirements, and this utility model does not impose specific limitations in this regard.

[0030] Furthermore, in this embodiment, the liquid level inside the drainage tank 100 is regulated by controlling the outlet valve 330. Specifically, when the tank is in normal drainage mode, the outlet valve 330 is normally open. When sludge removal is required, the opening of the outlet valve 330 is reduced or closed to increase the liquid level inside the drainage tank 100 by reducing the outflow of water. Specifically, the outlet valve 330 in this embodiment is preferably a solenoid valve. The sludge removal and water discharge weir of the small-volume horizontal flow tank also includes a control mechanism. The outlet valve 330 is connected to the control mechanism, thereby improving the operator's control accuracy and response speed of the outlet valve 330.

[0031] In this embodiment, the top of the collection tank 200 and the top of the water-passing sidewall 110 are located on the same horizontal plane to receive water overflowing from the drainage tank 100. The second drainage hole 210 is provided on its sidewall. Similarly, this utility model does not limit the location or specific number of the second drainage holes 210. In this embodiment, the scum filter element 340 is a hydraulic filter screen, which can filter and block the scum 400 and foam in the second water outlet pipe 320.

[0032] Specifically, in this embodiment, the sludge discharge weir of the small-volume horizontal flow tank constructs an efficient and convenient sludge discharge and drainage system, which includes a normal drainage state and a sludge discharge state. During wastewater discharge, normal wastewater without a large amount of sludge can be discharged through drainage tank 100 in the drainage state. (See [reference]). Figure 2As shown, liquid enters the drainage tank 100 through the inlet 150 and directly enters the drainage assembly 300 through the first drain 140. At this time, there is no liquid inside the collection tank 200. When the wastewater in the drainage tank 100 needs to be treated for sludge and foam removal, see [reference needed]. Figure 3 As shown, by blocking the drainage process of drainage tank 100, the liquid level inside drainage tank 100 is raised, allowing the liquid to carry the floating scum into collection tank 200, and then be discharged after filtration through the second outlet pipe 320. The residue and scum will settle at the bottom of collection tank 200. See [reference needed]. Figure 4 As shown, after a period of time, only cleaning of the collection tank 200 is required. Based on the above structural design, the small-volume horizontal flow tank sludge discharge weir in this embodiment is compatible with different wastewaters to be treated, thereby avoiding excessive residue and foam carried in the wastewater passing through the weir. Simultaneously, this process requires no additional mechanical agitation or complex drive devices; relying solely on simple valve control and utilizing the principle of water level difference, the scum 400 within the drainage tank 100 can be efficiently transferred, significantly improving the cleanliness of the internal environment of the drainage tank 100 and reducing the frequency and difficulty of manual cleaning.

[0033] Correspondingly, the wastewater entering the collection tank 200 undergoes equally efficient subsequent treatment. Wastewater in the collection tank 200 flows into the second outlet pipe 320 through the second drain hole 210. The scum filter element 340 on the second outlet pipe 320 functions to intercept fine scum 400 remaining in the wastewater, ensuring that the discharged water meets discharge standards. Throughout the scum removal process, the water-passing sidewall 110, the stop sidewall 120, and the liquid level in the collection tank 200 form a precise coordination: the height difference between the water-passing sidewall 110 and the stop sidewall 120 determines the conditions for the interception and transfer of scum 400, while the lower sidewall height of the collection tank 200 ensures that the scum 400 can smoothly enter and be temporarily stored, creating conditions for subsequent filtration and drainage. This design allows operators to seamlessly switch from conventional drainage to scum-discharge drainage simply by controlling the outlet valve 330, without requiring complex operating procedures or professional skills training.

[0034] Example 2:

[0035] See Figure 5As shown, this embodiment provides another small-volume horizontal flow tank sludge discharge weir. Its actual operating principle and usage process are the same as in Embodiment 1, and will not be elaborated further here. In this embodiment, only the position and number of the first drainage holes 140 are adjusted, and the docking structure of the drainage component 300 is adjusted accordingly to improve the drainage efficiency of the drainage tank 100. Specifically, the drainage tank 100 in this embodiment is provided with multiple first drainage holes 140. The first outlet pipe 310 includes a main pipe 311 and multiple connecting pipes 312. The multiple connecting pipes 312 are all connected to the main pipe 311 and are connected to the multiple first drainage holes 140 one by one. The outlet valve 330 is provided on the main pipe 311. Further, the drainage end of the first outlet pipe 310 is connected to the drainage end of the second outlet pipe 320. This facilitates the centralized collection and treatment of discharged wastewater.

[0036] Example 3:

[0037] This embodiment provides a drainage device, which includes the above-mentioned small-volume horizontal flow pool slag discharge weir.

[0038] Example 4:

[0039] This embodiment provides a wastewater treatment system, which includes the above-mentioned small-volume horizontal flow tank sludge discharge weir.

[0040] In summary, the small-volume horizontal flow tank sludge discharge weir, drainage equipment, and sewage treatment system described in this utility model perform conventional drainage functions through the drainage tank 100 and the first outlet pipe 310. When the sewage contains a large flow of scum 400 and foam, sludge discharge treatment is required for the liquid to be discharged. At this time, the liquid level inside the drainage tank 100 can be raised by controlling the outlet valve 330, thereby allowing the scum 400 in the drainage tank 100 to enter the collection tank 200 under the influence of the water flow, thus improving the cleanliness of the internal environment of the drainage tank 100. The sewage entering the collection tank 200 can then be filtered and discharged through the second outlet pipe 320 and the scum filter element 340, thus completing the sludge discharge process of the small-volume horizontal flow tank. In the above process, based on the limitations of the water-passing side wall 110, the stop side wall 120, and the liquid level height of the collection tank 200, the complete sludge discharge process can be achieved simply by controlling the outlet valve 330. Compared with conventional horizontal flow pool effluent weirs, this application has the advantages of easy control, simple operation, good slag removal effect and wide applicability, and has broad application prospects in this industry.

[0041] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A slag discharge weir for a small-volume horizontal flow tank, characterized in that: include: A drainage pool is provided with at least one water inlet and at least one first drainage hole. The water inlet is connected to the water to be discharged. The drainage pool includes a bottom plate and water-passing sidewalls and stop sidewalls disposed on opposite sides of the bottom plate. The water-passing sidewalls and the stop sidewalls are both vertically connected to the bottom plate, and the extension height of the stop sidewalls is greater than the extension height of the water-passing sidewalls. A collection tank is provided, which is fitted to the water-passing sidewall and the sidewall of the collection tank is not higher than the water-passing sidewall. The collection tank is provided with at least one second drain hole. The drainage assembly includes a first outlet pipe and a second outlet pipe. The first outlet pipe is connected to the first drain hole and is equipped with an outlet valve. The second outlet pipe is connected to the second drain hole and is equipped with a scum filter.

2. The slag discharge weir of the small-volume horizontal flow tank according to claim 1, characterized in that: The first drain hole is located above the water inlet hole.

3. The slag discharge weir of the small-volume horizontal flow tank according to claim 2, characterized in that: The water inlet is located on the bottom plate, and the first drain hole is located on the side wall of the drainage pool.

4. The slag discharge weir of the small-volume horizontal flow tank according to claim 1, characterized in that: The drainage pool is provided with a plurality of first drainage holes. The first water outlet pipe includes a main pipeline and a plurality of connecting pipelines. The plurality of connecting pipelines are all connected to the main pipeline and are connected to the plurality of first drainage holes one by one. The water outlet valve is provided on the main pipeline.

5. The slag discharge weir of the small-volume horizontal flow tank according to claim 1, characterized in that: The drain end of the first water outlet pipe is connected to the drain end of the second water outlet pipe.

6. The slag discharge weir of the small-volume horizontal flow tank according to claim 1, characterized in that: The slag discharge weir of the small-volume horizontal flow pool also includes a control mechanism, and the discharge valve is connected to the control mechanism.

7. The slag discharge weir of the small-volume horizontal flow tank according to claim 1, characterized in that: The scum filter element is a hydraulic filter screen.

8. A drainage device, characterized in that: Includes the slag discharge weir of the small-volume horizontal flow pool as described in any one of claims 1 to 7.

9. A wastewater treatment system, characterized in that: Includes the slag discharge weir of the small-volume horizontal flow pool as described in any one of claims 1 to 7.

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