A rapid sewage sedimentation treatment device
By combining a bar screen, a vortex sedimentation chamber, and an inclined plate sedimentation chamber, along with spiral guide plates and honeycomb inclined plates, the problems of large footprint and high energy consumption of traditional sedimentation tanks are solved, achieving rapid and efficient wastewater sedimentation treatment and automated management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIXING HENGWEI ENVIRONMENT-PROTECTION EQUIP CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional sedimentation tanks have long hydraulic retention times, large footprints, and are prone to sludge caking. Inclined plate sedimentation cannot effectively improve settling efficiency when flocculation is insufficient. Ultrasonic technology has high energy consumption, which limits its widespread application.
The system employs a combination of a bar screen, a cyclone sedimentation chamber, and an inclined plate sedimentation chamber, along with spiral guide plates and honeycomb inclined plates. Through cyclone separation, flocculant mixing, and an automatic sludge discharge system, it achieves rapid sedimentation treatment.
It effectively intercepts large impurities, improves sedimentation efficiency, reduces land occupation, lowers energy consumption, and enables rapid sedimentation and automated management of wastewater.
Smart Images
Figure CN224493878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a rapid sedimentation treatment device for wastewater. Background Technology
[0002] In the field of wastewater treatment, traditional sedimentation tanks have some inherent problems in the wastewater treatment process. For example, the hydraulic retention time is relatively long (usually 2 to 4 hours), which requires a large tank area, resulting in a large footprint. In addition, sludge tends to clump at the bottom of the tank, which not only affects the sedimentation effect but also increases the difficulty of subsequent treatment. At the same time, although traditional inclined plate sedimentation technology can increase the surface loading, it cannot effectively improve the settling efficiency when flocculation is insufficient.
[0003] A related technology, CN216427011U, discloses an ultrasonic organic wastewater treatment device, comprising a treatment tank. A primary sedimentation tank is connected to the side of the treatment tank via a second connecting pipe. A second lift pump, connected to the primary sedimentation tank via a pipe, is located on the side of the primary sedimentation tank. The second lift pump is connected to a wastewater equalization tank via a third connecting pipe. The wastewater equalization tank is connected to a flocculation tank via a fourth connecting pipe. A sedimentation tank is located below the flocculation tank and communicates with it. An electrocoagulation reactor and a set of aeration pipes are sequentially arranged at the top of the flocculation tank. A biochemical processor and an MBR membrane device are connected to the flocculation tank via a fifth connecting pipe. The other end of the MBR membrane device is connected to a return pump via a pipe. A reuse tank, connected to the return pump via a pipe, is located below the return pump. This utility model has a scientifically sound and reasonable structural design, enabling comprehensive and thorough treatment of ultrasonic organic wastewater. After treatment, transparent water free of true oil and suspended solids can be directly obtained.
[0004] While ultrasonic technology can effectively promote the flocculation process when settling wastewater, its high energy consumption limits its economic viability for widespread application. Utility Model Content
[0005] This utility model solves the problems in related technologies and proposes a rapid sedimentation treatment device for sewage. Sewage first enters the pretreatment chamber through the sewage inlet pipe, where the bar screen remover completes the initial interception. Then, the sewage enters the cyclone sedimentation chamber through the first conveying pipe for cyclone separation. After that, it enters the inclined plate sedimentation chamber through the second conveying pipe for further sedimentation. Finally, it is discharged through the sewage drain pipe. This efficient and rapid sewage sedimentation treatment is achieved.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a wastewater rapid sedimentation treatment device, comprising a treatment tank, a pretreatment chamber disposed in the treatment tank, a vortex sedimentation chamber disposed next to the pretreatment chamber, an inclined plate sedimentation chamber disposed next to the vortex sedimentation chamber, a wastewater inlet pipe connected to the pretreatment chamber, a first conveying pipe for connecting the pretreatment chamber and the vortex sedimentation chamber, a second conveying pipe connected to the vortex sedimentation chamber, and a wastewater outlet pipe connected to the inclined plate sedimentation chamber;
[0007] The pretreatment chamber is equipped with a bar screen remover, which is located below the sewage inlet pipe.
[0008] The cyclone sedimentation chamber is composed of a cylindrical cyclone tube and a conical sludge collection hopper disposed on the lower end face of the cyclone tube. The side wall of the cyclone tube is tangentially connected to the first conveying pipe. The other end of the first conveying pipe is connected to the pretreatment chamber and is disposed above the bar screen slag remover.
[0009] By adopting the above technical solution, the bar screen in the pretreatment chamber can effectively intercept large impurities, avoiding any impact on subsequent treatment. The cyclone sedimentation chamber includes a cylindrical cyclone cylinder and a conical sludge collection hopper, and is connected to the pretreatment chamber through a first conveying pipe. It can perform cyclone separation on wastewater, efficiently removing suspended particulate matter. The inclined plate sedimentation chamber is further connected to the cyclone sedimentation chamber through a second conveying pipe, effectively promoting the sedimentation of remaining suspended solids. Finally, the treated water is discharged through the wastewater drain pipe.
[0010] As a preferred embodiment, the inclined plate sedimentation chamber is provided with an inclined honeycomb inclined plate group, wherein the inclination angle of the inclined plate in the honeycomb inclined plate group is 55-65° and the spacing between adjacent inclined plates is 30mm-50mm.
[0011] By adopting the above technical solution, the honeycomb inclined plate assembly is inclined in the inclined plate sedimentation chamber at an angle of 55-65°. This design effectively increases the sedimentation area of the sedimentation chamber, improves sedimentation efficiency, and accelerates the settling process of suspended particles. The spacing between the inclined plates is 30mm-50mm, which ensures that the water flows smoothly through the inclined plates, reducing water flow disturbance and further improving the sedimentation effect. Under this specific layout, the water flows along the inclined path of the inclined plates, making the separation of suspended solids and water more thorough and achieving a highly efficient sedimentation effect.
[0012] As a preferred embodiment, a pipe mixer is provided in the middle of the first conveying pipe, and the pipe mixer is connected to the flocculant addition unit.
[0013] By adopting the above technical solution, the pipeline mixer is located in the middle of the first conveying pipeline, and its main function is to uniformly mix the flocculant with the wastewater. The flocculant addition unit is responsible for providing an appropriate amount of flocculant and is connected to the pipeline mixer to ensure that the flocculant is accurately added to the wastewater. In this way, particulate matter in the wastewater can quickly aggregate to form larger flocs, making it easier to separate from the liquid and improving the subsequent treatment effect.
[0014] As a preferred embodiment, the inner wall of the cyclone tube is provided with a spiral guide plate, the height of which is 1 / 3 to 1 / 2 of the height of the cyclone tube, and the pitch is 0.8 to 1.2 times the tube diameter. The spiral guide plate inside the cyclone tube enhances centrifugal separation.
[0015] By adopting the above technical solution, the spiral guide plate installed on the inner wall of the cyclone separator can guide the fluid to form an efficient rotational motion within the separator, thereby enhancing the centrifugal separation effect. Specifically, the height of the spiral guide plate occupies 1 / 3 to 1 / 2 of the cyclone separator's height, which helps maintain a stable rotation angle during flow. The pitch of the guide plate is 0.8 to 1.2 times the separator's diameter, ensuring sufficient rotational circulation of the fluid within the separator while avoiding losses due to excessively turbulent flow caused by an excessively small pitch.
[0016] As a preferred embodiment, an overflow plate is provided between the inclined plate sedimentation chamber and the sewage drain pipe. The overflow plate is arranged in the width direction of the honeycomb inclined plate assembly, and the inlet end of the sewage drain pipe is located below the honeycomb inclined plate assembly.
[0017] By adopting the above technical solution, the honeycomb inclined plate group in the inclined plate sedimentation chamber is used to accelerate the sedimentation and separation of suspended solids in sewage and improve sedimentation efficiency; the overflow plate is set in the width direction of the honeycomb inclined plate group, and its function is to control the overflow path of sewage and prevent unfiltered sewage from directly entering the sewage drain pipe, thereby ensuring that only sewage that has passed through the honeycomb inclined plate group can be discharged smoothly; the liquid inlet end of the sewage drain pipe is set below the honeycomb inclined plate group, so that the sewage first contacts the honeycomb inclined plate group and solid-liquid separation is achieved by the guidance of the inclined plates.
[0018] As a preferred embodiment, the system further includes a sludge collection chamber located on the lower end face of the inclined plate sedimentation chamber, a sludge connecting pipe for connecting the sludge collection chamber and the conical sludge hopper, an ultrasonic sludge concentration meter located in the sludge collection chamber, a sludge discharge pipe connected to the sludge collection chamber, a sludge discharge valve located on the sludge discharge pipe, and a controller located outside the treatment tank. The sludge discharge pipe is externally connected to a sludge storage tank.
[0019] By adopting the above technical solution, when sewage passes through the inclined plate sedimentation chamber, the guiding effect of the inclined plate accelerates the settling speed of suspended solids, thereby improving the sedimentation efficiency. Subsequently, the settled sludge is collected in the sludge collection chamber and transported to the sludge collection chamber through the conical sludge hopper and sludge connecting pipe. When the sludge concentration reaches the set value, the sludge discharge valve opens, and the sludge is discharged through the sludge discharge pipe to the sludge storage tank for further treatment, thereby realizing the efficient and automatic management of solid-liquid separation in sewage and sludge.
[0020] As a preferred embodiment, the sludge discharge valve is configured as a pneumatic valve, and the signal input terminal of the sludge discharge valve is electrically connected to the signal output terminal of the ultrasonic sludge concentration meter. The signal of the ultrasonic sludge concentration meter is bidirectionally electrically connected to the controller, and the controller is configured as a PLC controller.
[0021] By adopting the above technical solution, the sludge discharge valve is automatically controlled by the controller based on the signal from the ultrasonic sludge concentration meter. Ultrasonic concentration monitoring enables automatic sludge discharge, while the pneumatic valve controls the sludge discharge. When the controller receives the signal detected by the ultrasonic sludge concentration meter, it can automatically open or close the pneumatic valve, achieving precise sludge discharge. The ultrasonic sludge concentration meter is used to detect and measure the sludge concentration and sends the detection results to the controller through its signal output terminal. The PLC controller then issues control commands based on the received concentration signal, thereby controlling the opening and closing state of the pneumatic valve. When the sludge concentration reaches a preset value, the controller will perform sludge discharge through the pneumatic valve, realizing an automatic monitoring and control ultrasonic concentration monitoring sludge discharge system.
[0022] As a preferred solution, to prevent sludge blockage in the sludge connection pipe, a high-frequency vibrator is installed on the sludge connection pipe, and the high-frequency vibration avoids sludge blockage.
[0023] By adopting the above technical solution, the main function of the high-frequency vibrator in the sludge connection pipeline is to overcome the viscosity of the sludge by generating high-frequency vibration, thereby avoiding sludge blockage in the conveying pipeline and facilitating the conveying of sludge in the conical sludge collection hopper to the sludge collection chamber.
[0024] Compared with the prior art, the beneficial effects of this utility model are: This utility model;
[0025] 1. The bar screen installed in the pretreatment chamber can effectively intercept large impurities and avoid affecting subsequent processing;
[0026] 2. The cyclone sedimentation chamber includes a cylindrical cyclone tube and a conical sludge collection hopper. It is connected to the pretreatment chamber through the first conveying pipe, which can perform cyclone separation on sewage and efficiently remove suspended particulate matter.
[0027] The inclined plate sedimentation chamber is further connected to the second conveying pipe of the vortex sedimentation chamber, which effectively promotes the sedimentation of the remaining suspended solids, and the treated water is finally discharged through the sewage drain pipe. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of a rapid sedimentation treatment device for sewage according to this utility model;
[0029] Figure 2 This utility model relates to a rapid sedimentation treatment device for sewage. Figure 1 Another structural diagram from a different perspective;
[0030] Figure 3 This is a partial half-sectional view of the overall structure of a rapid sedimentation treatment device for sewage according to this utility model.
[0031] Figure 4 This utility model relates to a rapid sedimentation treatment device for sewage. Figure 2 A schematic diagram of the vortex sedimentation chamber structure;
[0032] In the picture:
[0033] 100. Controller; 1. Processing tank; 111. Pretreatment chamber; 111. Bar screen; 12. Cyclone sedimentation chamber; 120. Spiral guide plate; 121. Second conveying pipe; 122. Conical sludge hopper; 13. Inclined plate sedimentation chamber; 131. Honeycomb inclined plate assembly; 132. Overflow plate; 14. Sludge collection chamber; 140. Ultrasonic sludge concentration meter; 141. Sludge discharge pipe; 1411. Sludge discharge valve; 21. Sewage inlet pipe; 22. Sewage outlet pipe; 3. First conveying pipe; 31. Pipe mixer; 4. Sludge connection pipe. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0037] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0038] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0039] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0040] like Figures 1 to 4 As shown, a rapid sedimentation treatment device for sewage includes a treatment tank 1, a pretreatment chamber 111 disposed within the treatment tank 1, a vortex sedimentation chamber 12 disposed beside the pretreatment chamber 111, an inclined plate sedimentation chamber 13 disposed beside the vortex sedimentation chamber 12, a sewage inlet pipe 21 connected to the pretreatment chamber 111, a first conveying pipe 3 for connecting the pretreatment chamber 111 and the vortex sedimentation chamber, a second conveying pipe 121 connected to the vortex sedimentation chamber, and a sewage outlet pipe 22 connected to the inclined plate sedimentation chamber 13.
[0041] Please refer to the details. Figure 1 and Figure 3 The pretreatment chamber 111 is equipped with a bar screen 111, which is located below the sewage inlet pipe 21.
[0042] Please refer to the details. Figure 1 , Figure 2 ,and Figure 4The cyclone sedimentation chamber 12 comprises a cylindrical cyclone tube and a conical sludge collection hopper 122 disposed on the lower end face of the cyclone tube. The side wall of the cyclone tube is tangentially connected to the first conveying pipe 3. The other end of the first conveying pipe 3 is connected to the pretreatment chamber 111 and is disposed above the bar screen 111. The bar screen 111 disposed in the pretreatment chamber 111 can effectively intercept large impurities and avoid affecting subsequent treatment. The cyclone sedimentation chamber 12, comprising a cylindrical cyclone tube and a conical sludge collection hopper 122, is connected to the pretreatment chamber 111 via the first conveying pipe 3, and can perform cyclone separation on wastewater to efficiently remove suspended particulate matter. The inclined plate sedimentation chamber 13 is further connected to the second conveying pipe 121 of the cyclone sedimentation chamber 12, effectively promoting the sedimentation of remaining suspended solids, and finally the treated water is discharged through the wastewater drain pipe 22. The working principle of the whole device is as follows: sewage first enters the pretreatment chamber 111 through the sewage inlet pipe 21, and the bar screen 111 completes the initial interception. Then, the sewage enters the cyclone sedimentation chamber 12 through the first conveying pipe 3 for cyclone separation. After that, it enters the inclined plate sedimentation chamber 13 through the second conveying pipe 121 for further sedimentation. Finally, it is discharged through the sewage drain pipe 22. In this way, the sewage is quickly and efficiently treated by sedimentation.
[0043] Please refer to the details. Figure 1 , Figure 2 and Figure 3 The inclined plate sedimentation chamber 13 is equipped with an inclined honeycomb plate assembly 131. The inclination angle of the inclined plates in the honeycomb plate assembly 131 is 55-65°, and the spacing between adjacent inclined plates is 30mm-50mm. The honeycomb plate assembly 131 is inclined in the inclined plate sedimentation chamber 13, and its inclination angle is 55-65°. This design can effectively increase the sedimentation area of the sedimentation chamber, improve the sedimentation efficiency, and accelerate the sedimentation process of suspended particles. The spacing between the inclined plates is 30mm-50mm, which can ensure that the water flows smoothly through the inclined plates, reduce the disturbance of the water flow, and thus further improve the sedimentation effect. Under this specific layout, the water flows along the inclined path of the inclined plates, making the separation of suspended solids and water more thorough, achieving a highly efficient sedimentation effect.
[0044] Please refer to the details. Figure 1 , Figure 2 and Figure 3 A pipe mixer 31 is installed in the middle of the first conveying pipe 3, and the pipe mixer 31 is connected to the flocculant addition unit. The pipe mixer 31, located in the middle of the first conveying pipe 3, primarily functions to uniformly mix the flocculant with the wastewater. The flocculant addition unit is responsible for providing an appropriate amount of flocculant and is connected to the pipe mixer 31 to ensure that the flocculant is accurately added to the wastewater. In this way, particulate matter in the wastewater can quickly aggregate to form larger flocs, making it easier to separate from the liquid and improving subsequent treatment efficiency.
[0045] Please refer to the details. Figure 4 The inner wall of the cyclone separator is equipped with a spiral guide plate 120. The height of the spiral guide plate 120 is 1 / 3 to 1 / 2 of the height of the cyclone separator, and the pitch is 0.8 to 1.2 times the diameter of the separator. The spiral guide plate 120 inside the cyclone separator enhances centrifugal separation. The spiral guide plate 120 on the inner wall of the cyclone separator can guide the fluid to form an efficient rotational motion within the separator, thereby enhancing the centrifugal separation effect. The height of the spiral guide plate 120, which is between 1 / 3 and 1 / 2 of the height of the cyclone separator, helps maintain a stable rotation angle during flow. The pitch of the guide plate, which is 0.8 to 1.2 times the diameter of the separator, ensures sufficient rotational circulation of the fluid within the separator while avoiding losses due to excessively turbulent flow caused by an excessively small pitch. Working principle: After the sewage enters the cyclone, it forms a rotating flow under the guidance of the spiral guide plate 120. Through the action of centrifugal force, substances with different densities are separated. The heavier substances move towards the wall of the cyclone and flow downward along the surface of the guide plate, and are collected in the conical sludge hopper 122; while the lighter substances move towards the center of the cyclone and enter the top through the second conveying pipe 121 into the inclined plate sedimentation chamber 13.
[0046] Please refer to the details. Figure 1 and Figure 3 An overflow plate 132 is provided between the inclined plate sedimentation chamber 13 and the sewage drain pipe 22. The overflow plate 132 is arranged in the width direction of the honeycomb inclined plate group 131, and the liquid inlet end of the sewage drain pipe 22 is located below the honeycomb inclined plate group 131. The honeycomb inclined plate group 131 in the inclined plate sedimentation chamber 13 is used to accelerate the sedimentation and separation of suspended solids in sewage and improve sedimentation efficiency. The overflow plate 132 is arranged in the width direction of the honeycomb inclined plate group 131. Its function is to control the overflow path of sewage and prevent unfiltered sewage from directly entering the sewage drain pipe, thereby ensuring that only sewage that has passed through the honeycomb inclined plate group 131 can be discharged smoothly. The liquid inlet end of the sewage drain pipe is located below the honeycomb inclined plate group 131, so that the sewage first contacts the honeycomb inclined plate group 131 and solid-liquid separation is achieved by the guidance of the inclined plates. The overall working principle is as follows: wastewater first enters the inclined plate sedimentation chamber 13 and flows along the surface of the honeycomb inclined plate assembly 131. Suspended solids settle and are intercepted under the action of gravity. At the same time, the overflow plate 132 guides the wastewater to flow along a predetermined path to prevent untreated wastewater from directly entering the wastewater drain pipe. Finally, the wastewater filtered by the honeycomb inclined plate assembly 131 is discharged through the wastewater drain pipe, thereby achieving efficient and reliable wastewater purification treatment.
[0047] Please refer to the details. Figure 1 and Figure 3It also includes a sludge collection chamber 14 located on the lower end face of the inclined plate sedimentation chamber 13, a sludge connecting pipe 4 for connecting the sludge collection chamber 14 and the conical sludge hopper 122, an ultrasonic sludge concentration meter 140 located in the sludge collection chamber 14, a sludge discharge pipe 141 connected to the sludge collection chamber 14, a sludge discharge valve 1411 located on the sludge discharge pipe 141, and a controller 100 located outside the treatment tank 1. The sludge discharge pipe 141 is externally connected to the sludge storage tank. Wastewater passes through the inclined plate... In the sedimentation chamber 13, the inclined plate guides the settling of suspended solids, thereby improving sedimentation efficiency. The settled sludge is then collected in the sludge collection chamber 14 and transported to the sludge collection chamber 14 through the conical sludge hopper 122 and the sludge connecting pipe 4. When the sludge concentration reaches the set value, the sludge discharge valve 1411 is opened, and the sludge is discharged through the sludge discharge pipe 141 to the sludge storage tank for further treatment, thereby achieving solid-liquid separation in wastewater and efficient and automatic management of sludge.
[0048] Please refer to the details. Figure 1 and Figure 3 The sludge discharge valve 1411 is a pneumatic valve, and its signal input terminal is electrically connected to the signal output terminal of the ultrasonic sludge concentration meter 140. The signal from the ultrasonic sludge concentration meter 140 is bidirectionally electrically connected to the controller 100, which is a PLC controller. The sludge discharge valve 1411 is automatically controlled by the controller 100 based on the signal from the ultrasonic sludge concentration meter 140. Ultrasonic concentration monitoring enables automatic sludge discharge, while the pneumatic valve controls sludge discharge. When the controller 100 receives a signal from the ultrasonic sludge concentration meter 140, it automatically opens or closes the pneumatic valve to achieve precise sludge discharge. The ultrasonic sludge concentration meter 140 detects and measures the sludge concentration and sends the detection results to the controller 100 via its signal output terminal. The PLC controller 100 issues control commands based on the received concentration signal to control the opening and closing state of the pneumatic valve. When the sludge concentration reaches a preset value, the controller 100 performs sludge discharge via the pneumatic valve, realizing an automatic monitoring and control ultrasonic concentration monitoring sludge discharge system. Therefore, the specific working principle of the entire system is as follows: the ultrasonic sludge concentration meter 140 continuously detects the sludge concentration and transmits the data to the PLC controller 100. The controller 100 controls the opening and closing of the pneumatic valve according to the set value, thereby realizing the automatic adjustment and discharge of sludge concentration.
[0049] Please refer to the details. Figure 3 To prevent sludge blockage in the sludge connection pipe, a high-frequency vibrator is installed on the sludge connection pipe. High-frequency vibration avoids sludge blockage. In the sludge connection pipe, the main function of the high-frequency vibrator is to overcome the viscosity of the sludge by generating high-frequency vibration, thereby preventing sludge blockage in the conveying pipe and facilitating the conveying of sludge in the conical sludge hopper 122 to the sludge collection chamber 14.
[0050] In this embodiment, wastewater first enters the pretreatment chamber 111 through the wastewater inlet pipe 21, where the bar screen 111 performs initial interception. Subsequently, the wastewater enters the cyclone sedimentation chamber 12 through the first conveying pipe 3 for cyclone separation. After entering the cyclone, the wastewater forms a rotating flow under the guidance of the spiral guide plate 120. Through the action of centrifugal force, substances of different densities are separated. The heavier substances move towards the wall of the cyclone and flow downward along the surface of the guide plate, and are collected in the conical sludge collection hopper 122. The lighter substances move towards the center of the cyclone, enter the top, and enter the inclined plate sedimentation chamber 13 through the second conveying pipe 121. After that, they enter the inclined plate sedimentation chamber 13 through the second conveying pipe 121 for further sedimentation, and finally are discharged through the wastewater drain pipe 22. In this way, the rapid sedimentation treatment of wastewater is completed efficiently and quickly.
[0051] When water passes through the inclined plate sedimentation chamber 13, the inclined plate guides the settling of suspended solids, thereby improving sedimentation efficiency. Subsequently, the settled sludge is collected in the sludge collection chamber 14 and transported to the sludge collection chamber 14 through the conical sludge hopper 122 and the sludge connecting pipe 4. The ultrasonic sludge concentration meter 140 continuously detects the sludge concentration and transmits the data to the PLC controller 100. The controller 100 controls the opening and closing of the pneumatic valve according to the set value, thereby realizing the automatic adjustment and discharge of sludge concentration.
[0052] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.
Claims
1. A rapid sedimentation treatment device for wastewater, characterized in that: The system includes a treatment tank (1), a pretreatment chamber (111) located inside the treatment tank (1), a vortex sedimentation chamber (12) located next to the pretreatment chamber (111), an inclined plate sedimentation chamber (13) located next to the vortex sedimentation chamber (12), a sewage inlet pipe (21) connected to the pretreatment chamber (111), a first conveying pipe (3) for connecting the pretreatment chamber (111) and the vortex treatment chamber, a second conveying pipe (121) connected to the vortex treatment chamber, and a sewage outlet pipe (22) connected to the inclined plate sedimentation chamber (13). The pretreatment chamber (111) is equipped with a bar screen (111), which is located below the sewage inlet pipe (21); The cyclone sedimentation chamber (12) consists of a cylindrical cyclone cylinder and a conical sludge collection hopper (122) disposed on the lower end face of the cyclone cylinder. The side wall of the cyclone cylinder is tangentially connected to the first conveying pipe (3). The other end of the first conveying pipe (3) is connected to the pretreatment chamber (111) and is disposed above the bar screen slag remover (111).
2. The wastewater rapid sedimentation treatment device according to claim 1, characterized in that: The inclined plate sedimentation chamber (13) is provided with an inclined honeycomb inclined plate group (131), and the inclination angle of the inclined plate in the honeycomb inclined plate group (131) is 55-65°.
3. The wastewater rapid sedimentation treatment device according to claim 2, characterized in that: A pipe mixer (31) is provided in the middle of the first conveying pipe (3), and the pipe mixer (31) is connected to the flocculant addition unit.
4. The wastewater rapid sedimentation treatment device according to claim 3, characterized in that: The inner wall of the cyclone tube is provided with a spiral guide plate (120), and the height of the spiral guide plate (120) is 1 / 3 to 1 / 2 of the height of the cyclone tube.
5. The wastewater rapid sedimentation treatment device according to claim 4, characterized in that: An overflow plate (132) is provided between the inclined plate sedimentation chamber (13) and the sewage drain pipe (22). The overflow plate (132) is arranged in the width direction of the honeycomb inclined plate group (131), and the liquid inlet end of the sewage drain pipe (22) is located below the honeycomb inclined plate group (131).
6. The wastewater rapid sedimentation treatment device according to claim 5, characterized in that: It also includes a sludge collection chamber (14) located on the lower end face of the inclined plate sedimentation chamber (13), a sludge connecting pipe (4) for connecting the sludge collection chamber (14) and the conical sludge hopper (122), an ultrasonic sludge concentration meter (140) located in the sludge collection chamber (14), a sludge discharge pipe (141) connected to the sludge collection chamber (14), a sludge discharge valve (1411) located on the sludge discharge pipe (141), and a controller (100) located outside the treatment box (1). The sludge discharge pipe (141) is externally connected to the sludge storage tank.
7. The wastewater rapid sedimentation treatment device according to claim 6, characterized in that: The sludge discharge valve (1411) is configured as a pneumatic valve, and the signal input terminal of the sludge discharge valve (1411) is electrically connected to the signal output terminal of the ultrasonic sludge concentration meter (140). The signal of the ultrasonic sludge concentration meter (140) is bidirectionally electrically connected to the controller (100), and the controller (100) is configured as a PLC controller.
8. The wastewater rapid sedimentation treatment device according to claim 7, characterized in that: A high-frequency vibrator is installed on the sludge connecting pipe (4).