Sewage and wastewater treatment equipment

Abstract

The invention provides sewage and wastewater treatment equipment, and belongs to the technical field of sewage and wastewater treatment.The sewage and wastewater treatment equipment comprises a coagulating basin, a stirring mechanism and an agent storage mechanism, a reaction cavity is formed in the bottom end in the coagulating basin, the left side and the right side of the top end of the reaction cavity communicate with water inlets, and a water injection opening is formed in the center of the top end of the coagulating basin; the bottom end of the water injection opening communicates with a first flow channel, the left side and the right side of the first flow channel communicate with second flow channels through connecting openings correspondingly, and the other ends of the two second flow channels communicate with the two water inlets correspondingly. The problems of high energy consumption and high cost caused by motor-driven stirring and medicament feeding in traditional sewage and wastewater treatment equipment are solved. Through the innovative design, the stirring mechanism and the medicament feeding system are driven by the power of water flow, so that the dependence on a motor is remarkably reduced, and the energy consumption and the equipment cost are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sewage and wastewater treatment, in particular to sewage and wastewater treatment equipment. Background Art

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

[0003] Coagulation and sedimentation equipment is an important device in sewage and wastewater treatment equipment. It is widely used in the preliminary treatment stage of water treatment process. The equipment uses chemical agents (such as alum, polyaluminum, etc.) to react with suspended matter and colloidal substances in wastewater, and aggregates fine particles into larger flocs through coagulation, so that they settle in the sedimentation tank and separate the solid matter in the water. Coagulation and sedimentation equipment can not only remove suspended matter and some soluble pollutants in water, but also reduce the turbidity of water and improve water quality.

[0004] According to a fast and efficient coagulation and sedimentation equipment for sewage coagulation and sedimentation tanks with patent application number CN202111424448.2, the sewage coagulation and sedimentation equipment uses a variety of high-efficiency components and structures to improve the coagulation reaction speed and sedimentation effect of sewage, thereby improving the overall sewage treatment efficiency. However, this technology still faces certain energy consumption problems during operation, which are specifically manifested 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 driving mechanism of the agent delivery device (including the shaking of the distribution plate and the opening and closing of the baffle) also relies on the motor and a complex mechanical transmission system. Although this structure can improve the uniform delivery of the 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 summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

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

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

[0010] In order to solve the above technical problems, the present invention provides the following technical solutions: a sewage and wastewater treatment device, comprising:

[0011] A coagulation tank, wherein a reaction chamber is provided at the bottom of the coagulation tank, water inlets are connected to the left and right sides of the top of the reaction chamber, a water injection port is provided 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 a connecting port, and the other ends of the two second flow channels are respectively connected to the two water inlets;

[0012] The stirring mechanism comprises an impeller rotatably connected to the intersection of the connecting 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 to the reaction chamber where a stirring blade is fixedly connected, a circular boss is fixedly installed on the outer surface of the rotating shaft and located directly below the impeller, and a stretching assembly is drivingly connected to one side of the bottom end of the circular boss; and,

[0013] The reagent storage mechanism comprises a storage chamber which is opened at the top of the coagulation tank and located on the inner side of the water inlet, a discharge port is opened at the bottom end of the storage chamber, and the bottom end of the discharge port is communicated with the water inlet, a telescopic groove is opened above the inside of the discharge port, a sealing plate is slidably connected in the telescopic groove, and the top end of the sealing plate is connected to the stretching assembly, and a feed port is opened obliquely above the storage chamber.

[0014] As a preferred solution of the sewage and wastewater treatment equipment described in the present invention, a limiting groove is opened directly above the expansion groove, a cavity is opened above the limiting groove, the stretching assembly is arranged between the expansion groove, the limiting groove and the cavity, and the circular boss is rotatably connected in the cavity.

[0015] As a preferred solution of the sewage and wastewater treatment equipment described in the present invention, wherein: an annular track is opened on the bottom surface of the circular boss, the stretching assembly includes a movable rod slidably connected to the inside of 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, the bottom end of the limiting plate is fixedly connected with a telescopic spring, and 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] As a preferred solution of the sewage and wastewater treatment equipment of the present invention, wherein: the upper surface and the lower surface of the impeller are both slidably connected with balls, and the impeller is rotatably connected to the inner wall of the coagulation tank through the arranged balls.

[0017] As a preferred solution of the sewage and wastewater treatment equipment of the present invention, wherein: the stirring mechanism and the chemical storage mechanism are provided with four groups in total, and the four groups of the stirring mechanism and the chemical storage mechanism are distributed in a square array inside the coagulation tank.

[0018] As a preferred solution of the sewage and wastewater treatment equipment of the present invention, drainage outlets are provided on both the left and right sides of the bottom of the reaction chamber, and sealing doors are provided at both groups of drainage outlets.

[0019] As a preferred solution of the sewage and wastewater treatment equipment of the present invention, the flow cross-sectional area of ​​the connecting port is smaller than the flow cross-sectional area of ​​the first flow channel.

[0020] As a preferred solution of the sewage and wastewater treatment equipment of the present invention, the top end of the rotating shaft passes through the inner top wall of the coagulation tank and extends to the outside thereof.

[0021] Beneficial effects of the present invention:

[0022] 1. The present invention optimizes the energy utilization of water flow and cleverly uses water flow to drive the stirring impeller and the drug delivery mechanism, thereby reducing the dependence on the motor. Traditional sewage treatment equipment usually requires a motor to drive the stirring and drug delivery work, which consumes a lot of electricity. The present invention sets a specially designed flow structure (such as a connecting port and a first flow channel) so that the water flow can produce an acceleration effect when flowing through these areas, driving the impeller to rotate, thereby realizing the functions of stirring and drug delivery. This innovative hydraulic drive method greatly improves energy efficiency, reduces the demand for external power supply, and thus significantly reduces power consumption, thereby improving the operating economy of the equipment.

[0023] 2. The present invention effectively improves the sewage coagulation efficiency and solves the problems of incomplete coagulation and unstable treatment effect commonly seen in traditional equipment through a precisely designed stirring and reagent delivery system. Multiple sets of highly efficient and cooperative stirring mechanisms and reagent storage mechanisms ensure sufficient mixing of sewage and reagents. At the same time, precise control of the reagents is achieved through adjustable sealing plates and stretching components. The dosage and release timing of the reagents can be precisely adjusted to avoid excessive or insufficient dosage, significantly reducing reagent waste. This design not only improves the reaction rate and stability, but also reduces the cost of using reagents, thereby improving the economy and environmental protection of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0025] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0026] Figure 2 It is a front cross-sectional view of the present invention;

[0027] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement at the center A;

[0028] Figure 4 A top sectional view of the present invention;

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

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

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example

[0035] Reference Figure 1 to Figure 6 The present invention provides a sewage treatment device, the structural design of which is intended to achieve efficient and stable sewage 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 its auxiliary system and other components. The function, role and mutual coordination of each component will be described in detail below.

[0036] The sewage and wastewater treatment equipment first includes a coagulation tank 100, which is the core structural part of the entire equipment. A reaction chamber 101 is arranged inside the coagulation tank 100. The opening of the reaction chamber 101 effectively accommodates sewage and reagents for mixed reaction. Water inlets 102 are respectively arranged on the left and right sides of the top of the reaction chamber 101. The water inlet 102 is used to introduce sewage into the reaction chamber 101. A water injection port 103 is also opened 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 connecting port 105 is located at the intersection of the first flow channel 104 and the second flow channel 106. The flow cross-sectional area thereof is smaller than the flow cross-sectional area of ​​the first flow channel 104, forming a flow velocity enhancement effect, so that the water flow generates a higher flow velocity when flowing through this place, 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] The impeller 201 is a key component of the stirring mechanism 200, and its main function is to rotate through the push of water flow. A rotating shaft 202 is installed at the center of the impeller 201. The bottom end of the rotating shaft 202 passes through the bottom wall of the second flow channel 106 and extends into the reaction chamber 101. A stirring blade 203 is fixedly connected below the rotating shaft 202. The stirring blade 203 can efficiently stir the sewage and the reagent in the reaction chamber 101 to ensure that the two can be fully mixed, thereby improving the efficiency of the coagulation reaction.

[0038] In order to reduce the 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 through slidingly connected balls 206. This design reduces friction, allowing the impeller to achieve smooth and efficient rotation under lower driving force, further improving the operating efficiency of the stirring mechanism 200.

[0039] In order to further improve the accuracy of the dosage of the agent, the agent storage mechanism 300 includes a storage chamber 301, which is arranged at the top of the coagulation tank 100 and located on the inner side of the water inlet 102. A discharge port 302 is provided at the bottom of the agent storage chamber 301, and the discharge port 302 is communicated with the water inlet 102, allowing the agent and the sewage to be preliminarily mixed. In order to ensure the accurate dosage of the agent, a telescopic groove 303 is opened above the discharge port 302, and a sealing plate 304 is slidably connected in the telescopic groove 303. The upper end of the sealing plate 304 is connected to the circular boss 204 through the stretching component 205. The sealing plate 304 realizes precise control of the dosage of the agent through the connection. When the circular boss 204 rotates, it drives the movable rod 205a to move upward, thereby pushing the sealing plate 304 to move, releasing the closure of the discharge port 302, and the agent can be dosed as needed.

[0040] Another important component of the medicine storage mechanism 300 is the stretching component 205, which includes a movable rod 205a, which is connected to the annular track 204a by sliding. The annular track 204a is designed to be fixed on the bottom surface of the circular boss 204. A limiting disk 205b is installed on the outer surface of the movable rod 205a, and the limiting disk 205b slides in the limiting groove 107. When the circular boss 204 rotates, the movable rod 205a drives the movement of the sealing plate 304 to control the flow of the medicine. The function of the telescopic spring 205c is to enable the sealing plate 304 to quickly return to a sealed state to ensure the stability and intermittency of the medicine delivery process.

[0041] like Figure 3 As shown, when the raised 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 discharge port 302 to prevent the medicine from leaking out. When the circular boss 204 rotates, the raised end begins to move away from the movable rod 205a, and the rebound force of the telescopic spring 205c pushes the limit plate 205b and the movable rod 205a upward, and the movable rod 205a drives the sealing plate 304 to move into the telescopic groove 303, thereby releasing the closure of the discharge port 302, and the medicine is discharged from the storage chamber 301 through the discharge port 302, and flows into the water from the water inlet 102 At the same time, when the raised end of the circular boss 204 rotates again to just above the movable rod 205a, the movable rod 205a will be squeezed again, causing the movable rod 205a to squeeze the telescopic spring 205c through the limit 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 discharge port 302 to prevent the continued release of the medicine and ensure the quantitative release of the medicine. Since the circular boss 204 continues to rotate, the medicine can be released evenly and intermittently, ensuring that the mixing effect is more uniform and precise. This process continues to ensure the uniform distribution of the medicine and the sufficient mixing of the sewage.

[0042] It should be noted that the sealing plate 304 completely blocks the discharge port 302 when in the initial position, and the connection between the circular boss 204 and the movable rod 205a is in the initial position (eg Figure 3 As shown in the figure, the sealing plate 304 will gradually open only when the circular boss 204 rotates to one third. With this design, the sealing plate 304 will not be in the open state continuously, thereby effectively preventing excessive release or waste of the medicine. This progressive opening method ensures the accurate delivery of the medicine, ensures the precise control of the delivery amount each time, avoids the leakage of the medicine at unnecessary time, improves the working efficiency of the equipment, and further optimizes the economy and environmental protection of the use of medicine.

[0043] The feed port 305 of the storage chamber 301 is located at an oblique upper portion of the chamber, and is used to input the agent into the storage chamber 301 as needed. The agent enters the storage chamber 301 through the feed port 305, and is preliminarily mixed with the sewage flowing in from the water inlet 102 when flowing through the discharge port 302, ensuring that the agent and the sewage can be evenly mixed.

[0044] In order to ensure the stable operation of the equipment, four groups of stirring mechanisms 200 and reagent storage mechanisms 300 are arranged. These components are distributed in a square array inside the coagulation tank 100. The synergistic effect of each group of stirring mechanisms and reagent storage mechanisms can achieve the treatment of a large amount of sewage in a short time and ensure the uniform distribution and mixing of the reagents.

[0045] Drain ports 109 are provided on the left and right sides of the bottom of the reaction chamber 101. When the sewage undergoes sufficient coagulation reaction, the mixed liquid in the coagulation tank 100 can be discharged through the drain ports 109. Each drain port 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 of the equipment is that at the top of the rotating shaft 202, the rotating shaft 202 penetrates the inner top wall of the coagulation tank 100 and extends to the outside. This design enables the stirring mechanism 200 in the reaction chamber 101 to be connected to an external motor to cope with the situation of insufficient water flow. If the water flow cannot fully drive the impeller 201 to rotate, the external motor can drive the rotating shaft 202 to continue the stirring work. This design ensures the continuity of the stirring work and is not affected by the fluctuation of sewage flow.

[0047] In summary, the sewage and wastewater treatment equipment of the present invention ensures that sewage and chemicals can be mixed efficiently and evenly and complete the coagulation process in a short time through multiple innovative designs and optimizations. The multiple stirring mechanisms and chemical storage mechanisms of the equipment work together to ensure the efficient reaction, and the design of the drain outlet ensures the rapid discharge of sewage 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] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0049] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0050] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sewage and wastewater treatment equipment, characterized in that: include, A coagulation tank (100), wherein a reaction chamber (101) is provided at the bottom of the interior of the coagulation tank (100), the left and right sides of the top of the reaction chamber (101) are both connected to water inlets (102), 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 both connected to second flow channels (106) via a connecting port (105), and the other ends of the two second flow channels (106) are respectively connected to the two water inlets (102); The stirring mechanism (200) comprises an impeller (201) rotatably connected to the intersection of the connecting port (105) and the second flow channel (106); a rotating shaft (202) is fixedly mounted 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) to be fixedly connected with a stirring blade (203); a circular boss (204) is fixedly mounted on the outer surface of the rotating shaft (202) and located directly below the impeller (201); a stretching assembly (205) is drivingly connected to one side of the bottom end of the circular boss (204); and, The reagent storage mechanism (300) comprises a storage chamber (301) which is opened at the top of the coagulation tank (100) and located on the inner side of the water inlet (102); a discharge port (302) is opened at the bottom end of the storage chamber (301), and the bottom end of the discharge port (302) is communicated with the water inlet (102); a telescopic groove (303) is opened above the inside of the discharge port (302); a sealing plate (304) is slidably connected in the telescopic groove (303), and the top end of the sealing plate (304) is connected to the stretching component (205); and a feed port (305) is opened obliquely above the storage chamber (301).

2. The sewage and wastewater treatment equipment according to claim 1, characterized in that: A limiting groove (107) is provided directly above the telescopic groove (303), a cavity (108) is provided above the limiting groove (107), the stretching assembly (205) is arranged 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).

3. The sewage and wastewater treatment equipment according to claim 2, characterized in that: The bottom surface of the circular boss (204) is provided with an annular track (204a), and the stretching component (205) includes a movable rod (205a) slidably connected to the inside of the annular track (204a), and 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), and the bottom end of the limiting plate (205b) is fixedly connected with a telescopic spring (205c), and the telescopic spring (205c) is sleeved on the outer surface of the movable rod (205a), and the bottom end of the telescopic spring (205c) is fixedly connected to the bottom wall of the limiting groove (107), and 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).

4. The sewage and wastewater treatment equipment according to claim 3, characterized in that: The upper surface and the lower surface of the impeller (201) are both slidably connected with balls (206), and the impeller (201) is rotatably connected to the inner wall of the coagulation tank (100) through the provided balls (206).

5. The sewage and wastewater treatment equipment according to claim 4, characterized in that: A total of four groups of the stirring mechanisms (200) and the drug storage mechanisms (300) are provided, and the four groups of the stirring mechanisms (200) and the drug storage mechanisms (300) are distributed in a square array inside the coagulation tank (100).

6. The sewage and wastewater treatment equipment according to claim 5, characterized in that: Drainage outlets (109) are provided on both left and right sides of the bottom of the reaction chamber (101), and sealing doors (110) are provided at both groups of the drainage outlets (109).

7. The sewage and wastewater treatment equipment according to claim 6, characterized in that: The flow cross-sectional area of ​​the connection port (105) is smaller than the flow cross-sectional area of ​​the first flow channel (104).

8. The sewage and wastewater treatment equipment according to claim 7, characterized in that: The top end of the rotating shaft (202) penetrates the inner top wall of the coagulation tank (100) and extends to the outside thereof.

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