A sewage treatment plant

Abstract

The application provides a kind of sewage treatment equipment, belongs to sewage treatment technical field, including coagulation tank, stirring mechanism and reagent storage mechanism, the bottom end of the coagulation tank inside is provided with reaction cavity, the left and right sides of the top end of the reaction cavity are all communicated with water inlet, the center of the top end of the coagulation tank is provided with water injection port, the bottom end of the water injection port is communicated with first flow channel, the left and right sides of the first flow channel are all communicated with second flow channel through connecting port, and the other end of two second flow channels is communicated with two water inlets respectively.The application solves the problem of high energy consumption and high cost caused by motor-driven stirring and reagent feeding in traditional sewage treatment equipment. Through the innovative design of the application, the stirring mechanism and the reagent feeding system are driven by the power of water flow, significantly reducing the dependence on the motor, reducing energy consumption and equipment cost.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a wastewater treatment device. Background Technology

[0002] Wastewater treatment equipment refers to various mechanical devices used to treat pollutants in sewage and wastewater. Its purpose is to remove harmful substances from wastewater through physical, chemical, and biological means, improve water quality, ensure that wastewater discharge meets environmental standards, or make the water reusable. Modern wastewater treatment technologies typically select equipment and combine technologies based on the nature of the wastewater, treatment standards, and the environment in which it is used. Wastewater treatment equipment not only involves equipment for pretreatment, main treatment, and post-treatment stages, but also includes the removal of pollutants from wastewater, wastewater reuse, and the treatment of byproducts.

[0003] Coagulation and sedimentation equipment is an important device in wastewater treatment equipment, widely used in the preliminary treatment stage of water treatment. This equipment uses chemical agents (such as alum, polyaluminum, etc.) to react with suspended solids and colloidal substances in wastewater, and through coagulation, fine particles are aggregated into larger flocs, which then settle in the sedimentation tank, separating the solid matter from the water. Coagulation and sedimentation equipment can not only remove suspended solids and some dissolved pollutants from the water, but also reduce the turbidity of the water and improve the water quality.

[0004] According to patent application number CN202111424448.2, a rapid and efficient coagulation sedimentation device for wastewater coagulation sedimentation tanks utilizes various high-efficiency components and structures, aiming to improve the coagulation reaction rate and sedimentation effect of wastewater, thereby enhancing overall wastewater treatment efficiency. However, this technology still faces certain energy consumption issues during operation, specifically in the following aspects:

[0005] 1. The existing equipment uses a stirring motor and multiple sets of stirring blades to accelerate the coagulation reaction. Although this stirring device can improve the mixing efficiency, the operation of the motor and stirring device consumes a lot of electricity, especially when treating large-scale sewage, the energy consumption problem is particularly prominent, resulting in a high total energy consumption of the system.

[0006] 2. The drive mechanism of the agent dispensing device (including the shaking of the dispensing plate and the opening and closing of the baffle) also relies on the electric motor and a complex mechanical transmission system. Although this structure can improve the uniform dispensing of coagulant, the overall energy consumption is relatively large due to the use of multiple motors and transmission components. Summary of the Invention

[0007] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0008] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0009] Therefore, the technical problem to be solved by the present invention is to improve the uniform dosing and mixing efficiency of coagulants in sewage coagulation sedimentation tanks, while reducing energy consumption and improving sewage treatment efficiency.

[0010] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wastewater treatment device, comprising,

[0011] The coagulation tank has a reaction chamber at the bottom, and water inlets are connected to the left and right sides of the top of the reaction chamber. A water injection port is located at the center of the top of the coagulation tank. The bottom of the water injection port is connected to a first flow channel. The left and right sides of the first flow channel are connected to second flow channels through connection ports, and the other ends of the two second flow channels are respectively connected to the two water inlets.

[0012] A stirring mechanism includes an impeller rotatably connected at the junction of the connection port and the second flow channel. A rotating shaft is fixedly installed at the center of the impeller. The bottom end of the rotating shaft penetrates the bottom wall of the second flow channel and extends into the reaction chamber, where stirring blades are fixedly connected. A circular boss is fixedly installed on the outer surface of the rotating shaft, directly below the impeller. A tensioning assembly is drively connected to one side of the bottom end of the circular boss.

[0013] The reagent storage mechanism includes a storage cavity located at the top of the coagulation tank and inside the inlet. The bottom of the storage cavity has a discharge port, and the bottom of the discharge port is connected to the inlet. An expansion groove is provided above the inside of the discharge port. A sealing plate is slidably connected inside the expansion groove, and the top of the sealing plate is connected to the tensioning assembly. An inlet is provided diagonally above the storage cavity.

[0014] In a preferred embodiment of the wastewater treatment equipment of the present invention, a limiting groove is provided directly above the telescopic groove, a cavity is provided above the limiting groove, the stretching assembly is disposed between the telescopic groove, the limiting groove and the cavity, and the circular boss is rotatably connected in the cavity.

[0015] In a preferred embodiment of the wastewater treatment equipment of the present invention, the bottom surface of the circular boss is provided with an annular track, the tensioning assembly includes a movable rod slidably connected inside the annular track, a limiting plate is fixedly installed on the outer surface of the movable rod, and the limiting plate is slidably connected in the limiting groove, a telescopic spring is fixedly connected to the bottom end of the limiting plate, the telescopic spring is sleeved on the outer surface of the movable rod, and the bottom end of the telescopic spring is fixedly connected to the bottom wall of the limiting groove, and the bottom end of the movable rod extends into the telescopic groove and is fixedly connected to the upper surface of the sealing plate.

[0016] In a preferred embodiment of the wastewater treatment equipment of the present invention, the upper and lower surfaces of the impeller are slidably connected with ball bearings, and the impeller is rotatably connected to the inner wall of the coagulation tank through the ball bearings.

[0017] As a preferred embodiment of the wastewater treatment equipment of the present invention, four sets of stirring mechanisms and reagent storage mechanisms are provided, and the four sets of stirring mechanisms and reagent storage mechanisms are distributed in a square array inside the coagulation tank.

[0018] As a preferred embodiment of the wastewater treatment equipment of the present invention, the reaction chamber is provided with drain outlets on both the left and right sides of the bottom end, and both sets of drain outlets are provided with sealing doors.

[0019] In a preferred embodiment of the wastewater treatment equipment of the present invention, the cross-sectional area of ​​the connection port is smaller than the cross-sectional area of ​​the first flow channel.

[0020] In a preferred embodiment of the wastewater treatment equipment of the present invention, the top end of the rotating shaft penetrates the inner top wall of the coagulation tank and extends to its exterior.

[0021] The beneficial effects of this invention are:

[0022] 1. This invention optimizes the energy utilization of water flow by cleverly using water flow to drive the stirring impeller and the chemical dosing mechanism, reducing reliance on motors. Traditional wastewater treatment equipment typically requires motors to drive stirring and chemical dosing, consuming a large amount of electricity. However, this invention, through a specially designed flow structure (such as the connection port and the first flow channel), enables the water flow to generate an acceleration effect as it passes through these areas, driving the impeller to rotate, thereby achieving the functions of stirring and chemical dosing. This innovative hydraulic drive method greatly improves energy efficiency, reduces the demand for external power, and thus significantly reduces power consumption and improves the operating economy of the equipment.

[0023] 2. This invention, through a precisely designed stirring and reagent dosing system, effectively improves wastewater coagulation efficiency and solves the common problems of incomplete coagulation and unstable treatment effects in traditional equipment. Multiple sets of highly efficient cooperating stirring mechanisms and reagent storage mechanisms ensure thorough mixing of wastewater and reagents. At the same time, the adjustable sealing plate and stretching components enable precise control of the reagents, allowing for precise adjustment of the dosage and release timing, avoiding over- or under-dosing and significantly reducing reagent waste. This design not only improves reaction rate and stability but also reduces reagent usage costs, enhancing the economic efficiency and environmental friendliness of the equipment. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0025] Figure 1 This is a perspective view of the overall structure of the present invention;

[0026] Figure 2 This is a front sectional view of the present invention;

[0027] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A;

[0028] Figure 4 This is a top sectional view of the present invention;

[0029] Figure 5 This is a three-dimensional side sectional view of the present invention;

[0030] Figure 6 This is a three-dimensional enlarged view of the connection between the stretching component and the circular boss of the present invention. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example

[0035] Reference Figures 1-6 This invention provides a wastewater treatment device whose structural design aims to achieve efficient and stable wastewater coagulation and treatment effects through a variety of innovative functions. The device includes a coagulation tank 100, a reaction chamber 101, a stirring mechanism 200, a reagent storage mechanism 300, and auxiliary systems. The function, role, and interoperability of each component will be described in detail below.

[0036] The wastewater treatment equipment first includes a coagulation tank 100, which is the core structural part of the entire equipment. Inside, there is a reaction chamber 101. The reaction chamber 101 effectively accommodates wastewater and reagents for mixing and reaction. The top left and right sides of the reaction chamber 101 are respectively provided with water inlets 102, which are used to introduce wastewater into the reaction chamber 101. A water injection port 103 is also provided at the center of the top of the coagulation tank 100. The water injection port 103 is connected to the second flow channel 106 through the first flow channel 104. The connection port 105 is located at the intersection of the first flow channel 104 and the second flow channel 106. Its flow cross-sectional area is smaller than that of the first flow channel 104, forming a flow velocity enhancement effect, so that the water flows through this point with a higher flow velocity, thereby driving the impeller 201 to rotate. This design optimizes the energy utilization efficiency of the water flow and ensures the smooth progress of the coagulation reaction.

[0037] Impeller 201 is a key component of stirring mechanism 200. Its main function is to rotate by the propulsion of water flow. A rotating shaft 202 is installed at the center of impeller 201. The bottom end of rotating shaft 202 passes through the bottom wall of second flow channel 106 and extends into reaction chamber 101. Stirring blades 203 are fixedly connected below rotating shaft 202. Stirring blades 203 can efficiently stir the sewage and reagents in reaction chamber 101 to ensure that the two can be fully mixed, thereby improving the efficiency of coagulation reaction.

[0038] To reduce friction between the impeller 201 and the inner wall of the coagulation tank 100, the upper and lower surfaces of the impeller 201 are rotatably connected to the inner wall of the coagulation tank 100 via slidingly connected ball bearings 206. This design reduces friction, enabling the impeller to rotate smoothly and efficiently with lower driving force, further improving the operating efficiency of the stirring mechanism 200.

[0039] To further improve the accuracy of chemical dosing, the chemical storage mechanism 300 includes a storage cavity 301, which is located at the top of the coagulation tank 100 and inside the inlet 102. The bottom of the chemical storage cavity 301 has an outlet 302, which is connected to the inlet 102, allowing the chemical to be initially mixed with the sewage. To ensure accurate chemical dosing, an expansion groove 303 is provided above the outlet 302. A sealing plate 304 is slidably connected inside the expansion groove 303. The upper end of the sealing plate 304 is connected to a circular boss 204 through a tensioning component 205. The sealing plate 304 achieves precise control of chemical dosing through this connection. When the circular boss 204 rotates, it drives the movable rod 205a to move upward, thereby pushing the sealing plate 304 to move and release the closure of the outlet 302, so that the chemical can be dosed as needed.

[0040] Another important component of the drug storage mechanism 300 is the tensioning assembly 205, which includes a movable rod 205a. The movable rod 205a is slidably connected to an annular track 204a. The annular track 204a is designed to be fixed to the bottom surface of the circular boss 204. A limiting plate 205b is installed on the outer surface of the movable rod 205a. The limiting plate 205b slides in the limiting groove 107. When the circular boss 204 rotates, the movable rod 205a drives the sealing plate 304 to move, controlling the flow of the drug. The function of the telescopic spring 205c is to enable the sealing plate 304 to quickly return to the sealed state, ensuring the stability and intermittency of the drug dispensing process.

[0041] like Figure 3 As shown, when the protruding end of the circular boss 204 is directly above the movable rod 205a, it will squeeze the movable rod 205a, the telescopic spring 205c, and the sealing plate 304, so that the bottom of the sealing plate 304 can completely seal the outlet 302 to prevent the medicine from leaking out. When the circular boss 204 rotates, the protruding end begins to move away from the movable rod 205a. The rebound force of the telescopic spring 205c will push the limiting plate 205b and the movable rod 205a upward. The movable rod 205a drives the sealing plate 304 to move into the telescopic groove 303, releasing the seal on the outlet 302. The medicine is discharged from the storage cavity 301 through the outlet 302 and flows in from the water inlet 102. While the wastewater is being mixed, when the protruding end of the circular boss 204 rotates again to directly above the movable rod 205a, it will squeeze the movable rod 205a again, causing the movable rod 205a to squeeze the telescopic spring 205c through the limiting plate 205b, compressing it and generating elastic force. At this time, the bottom end of the movable rod 205a can push the sealing plate 304 to reseal the outlet 302, preventing the agent from being released further and ensuring the quantitative release of the agent. As the circular boss 204 continues to rotate, the agent can be released evenly and intermittently, ensuring a more uniform and precise mixing effect. This process continues, ensuring the uniform distribution of the agent and the thorough mixing of the wastewater.

[0042] It should be noted that the sealing plate 304 completely blocks the discharge port 302 in its initial position, while the connection between the circular boss 204 and the movable rod 205a is in its initial position (e.g., Figure 3 As shown, the sealing plate 304 only gradually opens when the circular boss 204 rotates to one-third of its original position. This design prevents the sealing plate 304 from remaining continuously open, effectively preventing excessive release or waste of the agent. This gradual opening method ensures precise agent dosing, accurate control of the dosage each time, avoids unnecessary leakage, improves equipment efficiency, and further optimizes the economic and environmental benefits of agent use.

[0043] The inlet 305 of the storage chamber 301 is located at the upper part of the chamber and is used to input the medicine into the storage chamber 301 as needed. The medicine enters the storage chamber 301 through the inlet 305 and is initially mixed with the sewage flowing in from the inlet 102 when it flows through the outlet 302, so as to ensure that the medicine and sewage can be mixed evenly.

[0044] To ensure stable operation of the equipment, four sets of mixing mechanisms 200 and chemical storage mechanisms 300 are set up. These components are distributed in a square array inside the coagulation tank 100. The synergistic effect of each set of mixing mechanism and chemical storage mechanism can achieve the treatment of a large amount of sewage in a short time, ensuring the uniform distribution and mixing of the chemicals.

[0045] The bottom left and right sides of the reaction chamber 101 are provided with drain outlets 109. After the sewage undergoes sufficient coagulation reaction, the mixed liquid in the coagulation tank 100 can be discharged through the drain outlets 109. Each drain outlet 109 is equipped with a sealing door 110. The opening and closing of the sealing door 110 is controlled by the staff to ensure that the sewage can be discharged smoothly after the reaction is completed. Through the control of the sealing door 110, the coagulated sewage can be quickly discharged and enter the sedimentation tank for sedimentation treatment, thereby effectively reducing impurities in the sewage.

[0046] Finally, another key design feature of the equipment is the top of the rotating shaft 202, which penetrates the inner top wall of the coagulation tank 100 and extends to its exterior. This design allows the stirring mechanism 200 inside the reaction chamber 101 to be connected to an external motor to cope with insufficient water flow. If the water flow is insufficient to fully drive the impeller 201 to rotate, the external motor can drive the rotating shaft 202 to continue the stirring operation. This design ensures the continuity of the stirring operation, unaffected by fluctuations in wastewater flow.

[0047] In summary, the wastewater treatment equipment of this invention, through multiple innovative designs and optimizations, ensures that wastewater and reagents can be mixed efficiently and uniformly, and that the coagulation process can be completed in a short time. The multiple stirring mechanisms and reagent storage mechanisms of the equipment work together to ensure the efficient conduct of the reaction, while the design of the drain outlet ensures the rapid discharge of wastewater after the reaction. The structural design of the equipment is innovative and reasonable, can adapt to different working environments, and has good maintainability and ease of operation.

[0048] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0049] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0050] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A wastewater treatment device, characterized in that: include, A coagulation tank (100) has a reaction chamber (101) at the bottom of its interior. The top of the reaction chamber (101) is connected to water inlets (102) on both the left and right sides. A water injection port (103) is provided at the center of the top of the coagulation tank (100). The bottom of the water injection port (103) is connected to a first flow channel (104). The left and right sides of the first flow channel (104) are connected to second flow channels (106) through connection ports (105). The other ends of the two second flow channels (106) are respectively connected to the two water inlets (102). The stirring mechanism (200) includes an impeller (201) rotatably connected at the junction of the connection port (105) and the second flow channel (106). A rotating shaft (202) is fixedly installed at the center of the impeller (201). The bottom end of the rotating shaft (202) penetrates the bottom wall of the second flow channel (106) and extends into the reaction chamber (101), where stirring blades (203) are fixedly connected. A circular boss (204) is fixedly installed on the outer surface of the rotating shaft (202) and directly below the impeller (201). A tensioning assembly (205) is drively connected to one side of the bottom end of the circular boss (204). The reagent storage mechanism (300) includes a storage cavity (301) located at the top of the coagulation tank (100) and inside the inlet (102). The bottom end of the storage cavity (301) is provided with a discharge port (302), and the bottom end of the discharge port (302) is connected to the inlet (102). An expansion groove (303) is provided above the inside of the discharge port (302). A sealing plate (304) is slidably connected inside the expansion groove (303), and the top end of the sealing plate (304) is connected to the tensioning assembly (205). An inlet (305) is provided diagonally above the storage cavity (301). A limiting groove (107) is provided directly above the telescopic groove (303), and a cavity (108) is provided above the limiting groove (107). The tensioning component (205) is disposed between the telescopic groove (303), the limiting groove (107) and the cavity (108), and the circular boss (204) is rotatably connected in the cavity (108). The bottom surface of the circular boss (204) is provided with an annular track (204a). The tensioning assembly (205) includes a movable rod (205a) slidably connected inside the annular track (204a). A limiting plate (205b) is fixedly installed on the outer surface of the movable rod (205a), and the limiting plate (205b) is slidably connected in the limiting groove (107). A telescopic spring (205c) is fixedly connected to the bottom end of the limiting plate (205b), and the telescopic spring (205c) is sleeved on the outer surface of the movable rod (205a). The bottom end of the telescopic spring (205c) is fixedly connected to the bottom wall of the limiting groove (107). The bottom end of the movable rod (205a) extends into the telescopic groove (303) and is fixedly connected to the upper surface of the sealing plate (304).

2. The wastewater treatment equipment as described in claim 1, characterized in that: The impeller (201) has ball bearings (206) slidably connected to both its upper and lower surfaces. The impeller (201) is rotatably connected to the inner wall of the coagulation tank (100) through the ball bearings (206).

3. The wastewater treatment equipment as described in claim 2, characterized in that: The stirring mechanism (200) and the reagent storage mechanism (300) are provided in four sets, and the four sets of stirring mechanism (200) and reagent storage mechanism (300) are distributed in a square array inside the coagulation tank (100).

4. The wastewater treatment equipment as described in claim 3, characterized in that: The reaction chamber (101) has drain outlets (109) on both the left and right sides at the bottom, and both drain outlets (109) are equipped with sealing doors (110).

5. The wastewater treatment equipment as described in claim 4, characterized in that: The cross-sectional area of ​​the connection port (105) is smaller than that of the first flow channel (104).

6. The wastewater treatment equipment as described in claim 5, characterized in that: The top of the rotating shaft (202) penetrates the inner top wall of the coagulation tank (100) and extends to its exterior.

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