Sewage settling device

Abstract

The utility model discloses a sewage sedimentation device belongs to sewage sedimentation technical field, including shell and sedimentation cylinder, the shell includes jar body and collection part, and the collection part bottom is connected with sludge discharge pipe, the collection part inside middle part is installed with the fairing of umbrella, and the sedimentation cylinder is fixed in the jar body inside middle part, and extends to the fairing upper portion downwards, and the jar body side bottom is connected with the clear water outlet pipe, still including the sewage inlet pipe of setting in the sedimentation cylinder upper portion. Sewage enters from the sedimentation cylinder top from the sewage inlet pipe, flows into the collection part, and the sediment is guided through the fairing and collection part, and enters the fairing lower portion gathering, can effectively avoid the disturbance to the sediment gathering in the fairing bottom, makes the flow path of sewage in the sedimentation area more reasonable, is helpful to more fully sedimentation, reduces short flow phenomenon, improves the sedimentation efficiency. Adopt vertical structure, compared with traditional horizontal long rectangular sedimentation tank, and the land area reduces, reduces the use limitation, and the practicality is good.

Description

Technical Field

[0001] This utility model belongs to the field of sewage sedimentation technology, specifically a sewage sedimentation device. Background Technology

[0002] In today's society, with the rapid development of industrialization and urbanization, water pollution has become increasingly serious, posing a huge threat to the ecological environment and human health. Sedimentation tanks, as one of the commonly used devices in water pollution treatment, primarily function to separate suspended particles in wastewater through gravity sedimentation, thereby achieving solid-liquid separation, purifying the wastewater, and reducing the load on subsequent treatment processes (such as filtration and biological treatment).

[0003] Traditional wastewater settling tanks are rectangular structures with horizontal flow. Wastewater flows in from one end and moves slowly horizontally. Suspended particles settle to the bottom under gravity, while the supernatant flows out from the other end. An inclined sludge hopper is located at the bottom for easy sludge collection and discharge. However, they require a large floor space, have limited applicability, and are difficult to control hydraulically, making them prone to short-circuiting (where some wastewater flows out before it has fully settled). Utility Model Content

[0004] To address the problems of traditional sewage sedimentation tanks, such as large footprint, limited applicability, difficulty in controlling hydraulic conditions, and susceptibility to short-circuiting, this utility model provides a sewage sedimentation device.

[0005] This utility model is achieved through the following technical solution:

[0006] A wastewater settling device includes an outer shell and a settling cylinder. The outer shell includes an upright cylindrical tank and an inverted conical collecting section connected to the bottom of the tank. A sludge discharge pipe is connected to the bottom of the collecting section. An umbrella-shaped guide hood is fixedly installed in the middle of the collecting section by several guide hood support rods. The settling cylinder is vertically fixed in the middle of the tank and extends downward to the upper part of the guide hood. The umbrella surface area of ​​the guide hood is larger than the size of the settling cylinder, and there is a settling gap between the guide hood and the lower end of the settling cylinder. A clean water outlet pipe is connected to the bottom of the side of the tank. The device also includes a wastewater inlet pipe located at the upper part of the settling cylinder.

[0007] Further improvements to this utility model include a disc-shaped overflow hood installed in a sealed connection to the inner wall of the tank, with a central hole in the middle of the overflow hood for the settling cylinder to pass through; an overflow gap between the central hole and the settling cylinder; the lower surface of the overflow hood gradually rises from the outside to the inside; and a sewage outlet pipe connected to the upper edge of the overflow hood is provided on the side of the tank.

[0008] A further improvement of this utility model is that the edge of the central hole is provided with an upwardly curved folded edge, and the upper edge of the folded edge is provided with several overflow teeth.

[0009] A further improvement of this utility model is that several buffer cover support rods are connected and installed in the upper part of the settling cylinder to form an umbrella-shaped buffer cover inside the settling cylinder.

[0010] A further improvement of this utility model is that the upper outer side of the settling cylinder is fixedly connected to the inner wall of the tank by two opposing upper support rods; the lower outer side of the settling cylinder is fixedly connected to the inner wall of the collecting part by two opposing lower support rods.

[0011] A further improvement of this utility model is that the upper support rod and the lower support rod of the settling cylinder are arranged in a staggered manner at 90 degrees.

[0012] A further improvement of this utility model is that the support rod on one of the settling cylinders is a sewage inlet pipe, the outer end of which is fixed through the side wall of the tank, and the inner end of which is fixed through the side wall of the settling cylinder.

[0013] A further improvement of this utility model is that a guide elbow is installed at the inner end of the sewage inlet pipe, and the outlet of the guide elbow is located in the middle of the settling cylinder.

[0014] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0015] Wastewater enters from the top of the settling tank through the wastewater inlet pipe. As the wastewater flows into the collection section through the gap between the lower end of the settling tank and the upper side of the guide hood, the wastewater sediment is guided outwards through the guide hood into the collection section. It is also guided by the inclined surfaces of the guide hood and the collection section, and accumulates at the bottom of the guide hood through the gap between the edge of the guide hood and the inner wall of the collection section. This continuous diffusion of wastewater at the top of the guide hood and continuous accumulation of sediment at the bottom effectively avoids disturbance to the sediment accumulated at the bottom of the guide hood, resulting in a more rational flow path for the wastewater in the settling area, promoting more thorough settling, reducing short-circuiting, and improving settling efficiency. The sludge valve is opened periodically to discharge sediment through the sludge discharge pipe, ensuring that the accumulated sediment remains at the bottom of the guide hood. The settled clean water is discharged through the clean water outlet pipe located at the top of the collection section. This wastewater settling device adopts a vertical structure, which reduces the footprint compared to traditional horizontal rectangular settling tanks, lowering usage limitations and improving practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view structural diagram of a specific embodiment of the present invention.

[0018] Figure 2 This is a second-view structural diagram of a specific embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of a specific embodiment of the present invention.

[0020] Figure 4 This is a cross-sectional structural diagram of a specific embodiment of the present utility model.

[0021] In the attached diagram: 1. Outer shell, 11. Tank body, 12. Collection section, 13. Sludge discharge pipe, 14. Clean water outlet pipe, 15. Sewage outlet pipe, 2. Settling tank, 21. Upper support rod of settling tank, 22. Lower support rod of settling tank, 3. Overflow hood, 31. Overflow tooth, 4. Buffer cover, 41. Buffer cover support rod, 5. Sewage inlet pipe, 51. Guide elbow, 6. Flow guide cover, 61. Flow guide cover support rod. Detailed Implementation

[0022] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0023] like Figures 1-4 As shown, this utility model discloses a sewage sedimentation device, including a shell 1 and a sedimentation cylinder 2. The shell 1 includes a vertical cylindrical tank 11 and an inverted conical collecting part 12 (larger at the top and smaller at the bottom) connected to the bottom of the tank 11. A sludge discharge pipe 13 is connected to the bottom of the collecting part 12, and a sludge valve is provided on the sludge discharge pipe 13. An umbrella-shaped guide hood 6 is fixedly installed on the middle of the inner wall of the collecting part 12 through several guide hood support rods 61. The center of the guide hood 6 coincides with the center line of the collecting part 12. Furthermore, the flow guide 6 is located in the middle of the collection section 12 in the vertical direction, with its tip pointing upwards; the settling cylinder 2 is vertically and fixedly installed in the middle of the tank body 11 (the center line of the settling cylinder 2 coincides with the center line of the tank body 11), the settling cylinder 2 extends downwards to the upper part of the flow guide 6, the umbrella surface area of ​​the flow guide 6 is larger than the size of the settling cylinder 2, and there is a settling gap between the flow guide 6 (upper side) and the lower end of the settling cylinder 2; a clean water outlet pipe 14 is connected to the bottom side of the tank body 11; and a sewage inlet pipe 5 is also provided on the upper part of the settling cylinder 2.

[0024] Wastewater enters from the top of the settling tank 2 through the wastewater inlet pipe 5. As the wastewater flows into the collecting section 12 through the gap between the lower end of the settling tank 2 and the upper side of the guide shroud 6, the wastewater sediment is guided to the surrounding areas of the collecting section 12 through the guide shroud 6. It is also guided by the inclined surfaces of the guide shroud 6 and the collecting section 12, and enters the lower part of the guide shroud 6 through the gap between the edge of the guide shroud 6 (the position of the guide shroud support rod 61) and the inner wall of the collecting section 12. During the continuous diffusion of wastewater at the top of the guide shroud 6 and the continuous entry of sediment into the bottom of the guide shroud 6, disturbance to the sediment accumulated at the bottom of the guide shroud 6 can be effectively avoided, making the flow path of wastewater in the settling area more reasonable, which helps to settle more fully, reduces short-circuiting, and improves settling efficiency. The sludge valve is opened periodically to discharge the sediment through the sludge discharge pipe 13, ensuring that the accumulated sediment is always at the bottom of the guide shroud 6. The settled clean water is discharged through the clean water outlet pipe 14 located at the top of the collecting section 12 (bottom of the tank 11). This wastewater sedimentation device adopts a vertical structure, which reduces the footprint compared to traditional horizontal flow rectangular sedimentation tanks, thus reducing usage limitations and improving practicality.

[0025] The conical angle of the collection section 12 is 30 degrees, and the umbrella angle of the guide shroud 6 is 45 degrees, ensuring effective guidance and collection of sediment.

[0026] In a further embodiment, such as Figures 1-4 As shown, a disc-shaped overflow hood 3 is sealed and installed on the inner wall (at the same horizontal plane) of the tank body 11. A central hole is provided in the middle of the overflow hood 3 for the settling cylinder 2 to pass through; an overflow gap exists between the central hole and the settling cylinder 2; the lower surface of the overflow hood 3 gradually rises from the outside to the inside; a sewage outlet pipe 15, communicating with the upper edge of the overflow hood 3, is connected to the side of the tank body 11. When the sewage volume is excessive, the excess sewage can be discharged from the upper edge of the overflow hood 3 through the sewage outlet pipe 15, serving as an overflow regulation function and preventing excessive sewage from affecting the settling effect. Furthermore, periodic overflow (raising the water level) can effectively separate floating debris from the water surface, improving the quality of the settled water. In practical use, the water level can be located in the middle of the overflow hood 3, and the amount of sewage entering through the sewage inlet pipe 5 and the amount of clean water exiting through the clean water outlet pipe 14 can reach a dynamic balance, ensuring continuous sewage settling operation.

[0027] Furthermore, the central hole has an upwardly curved folded edge, and the upper edge of the folded edge has several overflow teeth 31. This increases the overflow area and contact perimeter, making the sewage overflow more uniform and stable, and making the separation of floating objects from the water surface more reliable. The overflow teeth 31 can disperse the water flow, reducing the impact on the internal hydraulic conditions of the device when the water flow is concentrated and overflowing, thereby helping to better control the hydraulic conditions inside the device, further reducing the possibility of short-circuiting, and improving the overall effect of sewage settling.

[0028] Among them, such as Figures 1-4As shown, the upper outer side of the settling cylinder 2 is fixedly connected to the inner wall of the tank 11 by two opposing horizontal upper support rods 21; the lower outer side of the settling cylinder 2 is fixedly connected to the inner wall of the collecting part 12 by two opposing horizontal lower support rods 22. This ensures that the settling cylinder 2 can stand stably in the middle of the tank 11, guaranteeing the fixed position of the settling cylinder 2 during the operation of the device. This, in turn, ensures the stability of the path of sewage from the settling cylinder 2 into the settling area, preventing the settling cylinder 2 from shifting due to sewage flow, equipment vibration, or other factors. It also ensures the stability of the relative position between the settling cylinder 2 and the guide hood 6, guaranteeing the stability of the sewage flow state in the settling gap. This, in turn, ensures the settling effect and helps maintain the stability and reliability of the entire sewage settling device.

[0029] Furthermore, the upper support rod 21 and the lower support rod 22 of the settling cylinder are arranged at a 90-degree angle, that is, they are set perpendicular to each other. This can more effectively distribute the force borne by the settling cylinder 2 and provide support for the settling cylinder 2 from different directions, thereby enhancing the fixing effect of the settling cylinder 2. This allows the settling cylinder 2 to better resist the external forces such as sewage flow and equipment vibration during the operation of the device, further improving the stability of the settling cylinder 2, ensuring the long-term stable operation of the sewage settling device, and guaranteeing the smooth progress of the sewage settling process.

[0030] like Figures 1-4 As shown, one settling cylinder has a support rod 21 that serves as a wastewater inlet pipe, with its outer end fixed to the side wall of tank 11 and its inner end fixed to the side wall of settling cylinder 2. The other settling cylinder has a support rod 21 whose two ends are fixedly connected to the outer surface of settling cylinder 2 and tank 11. This integrated design reduces the number of components, simplifies the structure, and lowers the complexity and manufacturing cost of the device. It ensures that wastewater can be stably introduced into the settling cylinder 2 from outside tank 11, providing a reliable channel for wastewater to enter the settling area. Furthermore, the installation is stable, reducing the likelihood of leakage and ensuring the normal operation of the wastewater settling device.

[0031] Furthermore, a guide elbow 51 is installed at the inner end of the sewage inlet pipe 5, with the outlet of the guide elbow 51 facing downwards and located in the middle of the settling cylinder 2. This prevents sewage from directly impacting the inner wall of the settling cylinder 2 or concentrating in a localized area, allowing the sewage to be distributed more evenly within the settling cylinder 2. This facilitates more uniform flow of subsequent sewage within the settling area, improves the settling effect of suspended particles, reduces short-circuiting, and thus enhances the overall efficiency and purification quality of the sewage settling device.

[0032] Several buffer cover support rods 41 are connected to the upper part of the settling cylinder 2, and an umbrella-shaped buffer cover 4 is installed inside the settling cylinder 2. When sewage enters the middle of the settling cylinder 2 from the sewage inlet pipe 5 through the guide elbow 51, the buffer cover 4 can buffer and diffuse the sewage, reduce the speed and impact force of the sewage flow, and prevent the stable settling environment inside the settling cylinder 2 from being destroyed due to excessive sewage flow velocity and impact force. This allows the sewage to enter the settling area more smoothly, helps suspended particles to settle more orderly, improves settling efficiency and effect, and reduces short-circuiting caused by water flow impact.

[0033] In this wastewater settling device, wastewater enters from the top of the settling cylinder 2 through the wastewater inlet pipe 5. As the wastewater flows into the collecting section 12 through the gap between the lower end of the settling cylinder 2 and the upper side of the guide hood 6, the wastewater sediment is guided to the surrounding areas of the collecting section 12 through the guide hood 6. It is also guided by the inclined surfaces of the guide hood 6 and the collecting section 12, and enters the lower part of the guide hood 6 through the gap between the edge of the guide hood 6 (the position of the guide hood support rod 61) and the inner wall of the collecting section 12. During the process of wastewater continuously spreading at the top of the guide hood 6 and sediment continuously entering the bottom of the guide hood 6, the device can effectively avoid disturbing the sediment accumulated at the bottom of the guide hood 6, making the flow path of the wastewater in the settling area more reasonable, which helps to settle more fully, reduces short-circuiting, and improves settling efficiency. The sludge valve is opened periodically to discharge the sediment through the sludge discharge pipe 13, ensuring that the accumulated sediment remains at the bottom of the guide shroud 6. The settled clean water is discharged through the clean water outlet pipe 14 located at the top of the collection section 12 (bottom of the tank 11). This wastewater sedimentation device adopts a vertical structure, which reduces the footprint compared to traditional horizontal flow rectangular sedimentation tanks, thus reducing usage limitations and improving practicality.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sewage settling device, comprising a housing (1) and a settling cylinder (2), characterized in that, The outer shell (1) includes an upright cylindrical tank (11) and an inverted conical collecting part (12) connected to the bottom of the tank (11). The bottom of the collecting part (12) is connected to a sludge discharge pipe (13). An umbrella-shaped guide hood (6) is fixedly connected to the middle of the collecting part (12) by several guide hood support rods (61). The settling cylinder (2) is upright and fixedly installed in the middle of the tank (11) and extends downward to the upper part of the guide hood (6). The umbrella surface area of ​​the guide hood (6) is larger than the size of the settling cylinder (2), and there is a settling gap between the guide hood (6) and the lower end of the settling cylinder (2). A clean water outlet pipe (14) is connected to the bottom of the side of the tank (11). It also includes a sewage inlet pipe (5) set on the upper part of the settling cylinder (2).

2. The sewage settling device of claim 1, wherein, The inner wall of the tank (11) is sealed with a disc-shaped overflow hood (3). The overflow hood (3) has a central hole in the middle for the settling cylinder (2) to pass through. There is an overflow gap between the central hole and the settling cylinder (2). The lower surface of the overflow hood (3) gradually rises from the outside to the inside. The side of the tank (11) is connected to a sewage outlet pipe (15) that communicates with the upper edge of the overflow hood (3).

3. A sewage settling device according to claim 2, characterised in that The edge of the central hole is provided with an upwardly curved folded edge, and the upper edge of the folded edge is provided with several overflow teeth (31).

4. The sewage settling device of claim 1, wherein, The upper part of the settling cylinder (2) is connected to several buffer cover support rods (41) and has an umbrella-shaped buffer cover (4) installed inside the settling cylinder (2).

5. The sewage settling device of claim 1, wherein, The upper outer side of the settling cylinder (2) is fixedly connected to the inner wall of the tank body (11) by two opposing upper support rods (21); the lower outer side of the settling cylinder (2) is fixedly connected to the inner wall of the collecting part (12) by two opposing lower support rods (22).

6. A sewage settling device according to claim 5, characterised in that The upper support rod (21) and the lower support rod (22) of the settling cylinder are arranged at a 90-degree angle.

7. The sewage settling device of claim 5, wherein, One of the settling cylinders has a support rod (21) that is a sewage inlet pipe. Its outer end is fixed through the side wall of the tank (11), and its inner end is fixed through the side wall of the settling cylinder (2).

8. A sewage settling device according to claim 7, characterised in that A guide elbow (51) is installed at the inner end of the sewage inlet pipe (5), and the outlet of the guide elbow (51) is located in the middle of the settling cylinder (2).

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