Water pollution control sedimentation tank

Abstract

The utility model discloses a water pollution control settling pond which comprises a settling pond body, a settling cavity formed in the settling pond body, water inlet pipes communicated with the settling cavity and arranged on the left side and the right side of the top of the settling pond body respectively, a bottom opening formed in the middle of the settling cavity and a filtering cavity communicated with the settling cavity, and a filtering structure arranged at the bottom opening of the filtering cavity. The top of the filtering cavity is fixed to the top of the settling cavity, a water outlet pipe communicated with the interior of the filtering cavity is arranged on the side wall, close to the top, of the filtering cavity and penetrates through the side wall of the settling pond body to extend to the outer side, and a blow-off pipe is communicated with the bottom side of the settling cavity and penetrates through the settling pond body to extend to the outer side; in the continuous rising process of the liquid level in the precipitation cavity, sewage enters the filtering cavity, in the continuous rising process of the sewage entering the filtering cavity, impurities in the sewage are settled under the influence of gravity, and meanwhile, the precipitation effect is further improved in cooperation with a filtering structure in the filtering cavity.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of guardrails for water conservancy projects, in particular to a water pollution treatment sedimentation tank. BACKGROUND

[0002] The urban sewage is the collective term of the sewage discharged into the urban sewage system. In the combined drainage system, it also includes production wastewater and intercepted rainwater. The urban sewage mainly includes domestic sewage and industrial sewage, which is collected and transported by the urban drainage network to the sewage treatment plant for treatment. In the sewage treatment, the sedimentation tank is needed to sediment the sewage.

[0003] The utility model discloses a kind of water pollution treatment sedimentation tanks, including sedimentation tank body, two rotating shafts are rotatably connected in the sedimentation tank body, the right side of the sedimentation tank body is fixedly connected with first servo motor, the output end of the first servo motor penetrates the side wall of sedimentation tank and is fixedly connected with the right end of one rotating shaft, the surface of two rotating shafts is fixedly connected with two pulleys, the surface of pulley is drivingly connected with transmission belt, the surface of transmission belt is fixedly connected with multiple scrapers at equal intervals, the sedimentation tank body is fixedly connected with sludge pipe, the top end of sludge pipe penetrates the upper end surface of sedimentation tank body.

[0004] The utility model drives scraper to move by transmission belt rotation, and the mud at the bottom of sedimentation tank body is scraped into sludge tank, so that the aggregation of mud at the bottom of sedimentation tank body is reduced. However, although the rotation of scraper driven by transmission belt can remove sludge, it will also stir the water in the sedimentation tank, which greatly reduces the sedimentation effect. UTILITY MODEL CONTENTS

[0005] In view of the technical problems in the prior art, the utility model provides a water pollution treatment sedimentation tank to solve the above problems.

[0006] To achieve the above object, the utility model provides the following technical scheme.

[0007] A water pollution treatment sedimentation tank includes a sedimentation tank body, a sedimentation cavity is formed in the sedimentation tank body, water inlet pipes are arranged on the left and right sides of the top of the sedimentation tank body and communicate with the sedimentation cavity, a filter cavity is arranged in the middle of the sedimentation cavity and has an open bottom and communicates with the sedimentation cavity, a filter structure is arranged at the open bottom of the filter cavity, the filter cavity is fixed to the top of the sedimentation cavity, a water outlet pipe is arranged on the side wall of the filter cavity close to the top and communicates with the inside of the filter cavity, the water outlet pipe extends to the outside through the side wall of the sedimentation tank body, and a sewage discharge pipe is arranged on the bottom side of the sedimentation cavity and extends to the outside through the sedimentation tank body.

[0008] Preferably, the filtering structure comprises a plurality of inclined plates arranged at the bottom opening of the filtering cavity, and the left and right sides of the plurality of inclined plates are fixed on the left and right side walls of the filtering cavity.

[0009] Preferably, a filtering screen is further arranged in the filtering cavity in a transverse direction, the filtering screen is arranged at the top of the plurality of inclined plates and located below the water outlet pipe, and the periphery of the filtering screen is fixed on the inner wall of the filtering cavity.

[0010] Preferably, the plurality of inclined plates are arranged in a downward inclination from back to front, and the included angle with the horizontal plane is 55°-60°.

[0011] Preferably, the bottom of the sedimentation cavity is provided with a sludge collecting groove with a longitudinal section in the shape of an inverted cone corresponding to the position of the sewage pipe, and the sewage pipe is arranged at the bottom of the sludge collecting groove.

[0012] Preferably, the sewage pipe is provided with a valve at one end outside the sedimentation tank body.

[0013] Compared with the prior art, the water pollution treatment sedimentation tank has the following beneficial effects:

[0014] The water pollution treatment sedimentation tank provided by the utility model has the following beneficial effects: when the water inlet pipe discharges sewage into the sedimentation cavity, the liquid surface continuously rises into the filtering cavity, and the sundries in the sewage are settled under the influence of gravity in the process of continuously rising into the filtering cavity; the laminar flow principle is utilized by arranging a plurality of inclined plates; when the water flow flows between the plates or in the filtering cavity, the hydraulic radius is very small, the Reynolds number is low, and the water flow is in a laminar flow state, which is beneficial to the sedimentation process; the liquid surface of the settled sewage rises to the water outlet pipe for discharge; the settled sundries are discharged by periodically opening the valve; compared with the prior art, the sewage is not stirred, the sundries are prevented from being mixed into the water again, and thus the sedimentation effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole sectional view of the water pollution treatment sedimentation tank;

[0016] Figure 2 It is a right side sectional view of the inclined plate of the water pollution treatment sedimentation tank.

[0017] In the drawing: 1, sedimentation tank body; 11, sedimentation cavity; 12, sludge collecting groove; 2, water inlet pipe; 3, filtering cavity; 4, filtering structure; 41, inclined plate; 42, filtering screen; 5, water outlet pipe; 6, sewage pipe; 61, valve. DETAILED DESCRIPTION

[0018] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0019] Please refer to Figures 1-2 The application provides a water pollution treatment sedimentation tank, which comprises a sedimentation tank body 1, a sedimentation cavity 11 is formed in the sedimentation tank body 1, water inlet pipes 2 are arranged on the left side and the right side of the top of the sedimentation tank body 1 and communicate with the sedimentation cavity 11, a filter cavity 3 is arranged at the middle of the sedimentation cavity 11 and has an open bottom and communicates with the sedimentation cavity 11, a filter structure 4 is arranged at the open bottom of the filter cavity 3, the filter cavity 3 is fixed to the top of the sedimentation cavity 11, a water outlet pipe 5 is arranged at the side wall of the filter cavity 3 close to the top and communicates with the inside of the filter cavity 3, the water outlet pipe 5 extends to the outside through the side wall of the sedimentation tank body 1, and a blowdown pipe 6 is arranged at the bottom side of the sedimentation cavity 11 and extends to the outside through the sedimentation tank body 1.

[0020] Specifically, the wastewater to be precipitated is discharged into the sedimentation cavity 11 in the sedimentation tank body 1 through the water inlet pipes 2, in the process of continuously rising of the liquid surface in the sedimentation cavity 11, the wastewater enters the filter cavity 3 (because the water outlet pipe 5 is arranged to communicate with the outside, the wastewater cannot be prevented from entering the filter cavity 3), in the process of continuously rising of the wastewater in the filter cavity 3, the sundries in the wastewater are settled under the influence of gravity, and the filter structure 4 in the filter cavity 3 further improves the precipitation effect, the wastewater after settlement rises to the water outlet pipe 5 and is discharged, and the sundries settled are discharged through the blowdown pipe 6.

[0021] Further, see Figures 1-2 The filter structure 4 comprises a plurality of inclined plates 41 arranged at the open bottom of the filter cavity 3, the left side and the right side of the plurality of inclined plates 41 are fixed to the left side wall and the right side wall in the filter cavity 3, in the process of continuously rising of the wastewater in the filter cavity 3, the plurality of inclined plates 41 are arranged to utilize the laminar flow principle, when the water flow flows in the inclined plates 41 or the filter cavity 3, the hydraulic radius is very small and the Reynolds number is low, and the water flow is in a laminar flow state, which is beneficial to the precipitation process, the plurality of inclined plates 41 are arranged to be inclined downward from back to front, and the included angle with the horizontal plane is 55°-60°, so as to ensure that the sundries can automatically slide down, discharge the sundries more smoothly, and improve the sedimentation efficiency.

[0022] Meanwhile, the filtering net 42 is horizontally arranged in the filtering cavity 3, is arranged on the top of the plurality of inclined plates 41, is located at the lower side of the water outlet pipe 5, the periphery of the filtering net 42 is fixed on the inner wall of the filtering cavity 3, the sewage liquid surface after the settlement of the inclined plate 41 continuously rises to pass through the filtering net 42, the floating objects in the sewage are isolated and intercepted, and the settlement effect is further improved.

[0023] Further, see Figure 1 The bottom of the sedimentation cavity 11 is provided with the sludge collecting groove 12 with a longitudinal section of an inverted cone shape at the position corresponding to the sewage discharge pipe 6, the sewage discharge pipe 6 is arranged at the bottom of the sludge collecting groove 12, the impurities falling from the filtering structure 4 are collected to the sewage discharge pipe 6, the sewage discharge work is facilitated, meanwhile, the valve 61 is arranged at the end of the sewage discharge pipe 6 located outside the sedimentation tank body 1, the sludge collecting groove 12 is regularly discharged for treatment, and the sedimentation effect of the sedimentation tank body 1 is ensured.

[0024] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, unless otherwise indicated herein, the description has been presented in terms of methods, systems, and apparatuses that are described as being or being used in a particular way, but it should be understood that the methods, systems, and apparatuses can be used in other environments, and that the description is not limited to the particular methods, systems, and apparatuses described.

[0025] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sedimentation tank for water pollution treatment, comprising a sedimentation tank body (1), characterized in that: The sedimentation tank (1) includes a sedimentation chamber (11) inside. The sedimentation tank (1) has water inlet pipes (2) on the left and right sides of the top of the sedimentation tank (1) that are connected to the sedimentation chamber (11). The sedimentation chamber (11) has a bottom opening in the middle and a filter chamber (3) connected to the sedimentation chamber (11). The filter chamber (3) has a filter structure (4) at the bottom opening. The top of the filter chamber (3) is fixed to the top of the sedimentation chamber (11). The filter chamber (3) has an outlet pipe (5) near the top on the side wall of the side wall that is connected to the inside of the filter chamber (3). The outlet pipe (5) extends through the side wall of the sedimentation tank (1) to the outside. The bottom of the sedimentation chamber (11) is connected to a sewage pipe (6). The sewage pipe (6) extends through the sedimentation tank (1) to the outside.

2. The sedimentation tank for water pollution treatment according to claim 1, characterized in that, The filter structure (4) includes multiple inclined plates (41) located at the bottom opening of the filter cavity (3), with the left and right sides of the multiple inclined plates (41) respectively fixed to the left and right side walls of the filter cavity (3).

3. The sedimentation tank for water pollution treatment according to claim 2, characterized in that, The filter chamber (3) is also provided with a filter screen (42) in the horizontal direction. The filter screen (42) is located on the top of the multiple inclined plates (41) and below the water outlet pipe (5). The outer periphery of the filter screen (42) is fixed on the inner wall of the filter chamber (3).

4. The sedimentation tank for water pollution treatment according to claim 2, characterized in that, The plurality of inclined plates (41) are arranged inclined downward from back to front, and the angle between them and the horizontal plane is 55°-60°.

5. The sedimentation tank for water pollution treatment according to claim 1, characterized in that, The sedimentation chamber (11) has a sludge collection trough (12) with an inverted conical longitudinal section at the bottom corresponding to the drain pipe (6), and the drain pipe (6) is located at the bottom of the sludge collection trough (12).

6. A sedimentation tank for water pollution treatment according to claim 5, characterized in that, The sewage pipe (6) is equipped with a valve (61) at one end outside the sedimentation tank (1).

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