Polyaluminum chloride adding device for treating sewage with high heavy metal removal rate

Abstract

The utility model discloses a polyaluminum chloride feeding device for sewage treatment with high heavy metal removal rate, which comprises a treatment shell, a feeding port for feeding polyaluminum chloride is arranged at the top of the treatment shell, and a uniform distribution component for uniformly dispersing the polyaluminum chloride is arranged in the treatment shell and corresponds to the feeding port. And a driving assembly for driving the uniform distribution assembly to shake is mounted on the side surface of the treatment shell and corresponds to the uniform distribution assembly. The shaking screen frame is arranged below the feeding port, the servo motor is used for driving the cam to extrude the stress plate with different radiuses, and the shaking screen frame can continuously move in a reciprocating mode under the elastic action of the reset spring. By means of the design, polyaluminum chloride fed to the shaking screen frame from the feeding opening can be evenly dispersed, and therefore the distribution uniformity of the polyaluminum chloride in sewage is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate. Background Technology

[0002] In the field of wastewater treatment, polyaluminum chloride (PAC), as a commonly used inorganic polymeric coagulant, is widely used to remove pollutants such as heavy metal ions, suspended solids, and organic matter from wastewater due to its high efficiency, low cost, and ease of operation. However, the effectiveness of PAC addition largely depends on its uniform dispersion in the wastewater. If PAC is not uniformly added to the wastewater, it will lead to excessively high or low local concentrations, thereby affecting its effective contact and reaction efficiency with pollutants in the wastewater, reducing the heavy metal removal rate, and potentially causing problems such as substandard treated water quality.

[0003] In the prior art, such as the polyaluminum chloride dosing device disclosed in CN220780156U, although it provides basic dosing functions, it has the drawback of not being able to uniformly dispose of polyaluminum chloride. This device adds polyaluminum chloride through a winch and connecting water pipes, but lacks an effective dispersion mechanism, resulting in uneven distribution of polyaluminum chloride in wastewater, reducing mixing efficiency, and thus affecting the heavy metal removal effect. Utility Model Content

[0004] The purpose of this invention is to provide a polyaluminum chloride (PAC) dosing device for wastewater treatment with high heavy metal removal rates. By installing a swaying mesh frame below the feeding port and using a servo motor to drive a cam to press against a force plate at different radii, combined with the elastic force of a return spring, the swaying mesh frame can continuously reciprocate. This design ensures the uniform dispersion of PAC dispensed from the feeding port onto the swaying mesh frame, thereby improving the uniformity of PAC distribution in wastewater.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] A polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate includes:

[0007] The processing shell has a feeding port on its top for adding polyaluminum chloride. Inside the processing shell, corresponding to the feeding port, is a uniformly dispersing component for uniformly dispersing polyaluminum chloride. On the side of the processing shell, corresponding to the uniformly dispersing component, is a driving component for driving the uniformly dispersing component to shake.

[0008] The aforementioned polyaluminum chloride dosing device for treating wastewater with high heavy metal removal rates includes a wastewater inlet pipe installed at the top of one side of the treatment shell, and a discharge pipe installed at the bottom of the other side of the treatment shell for discharging treated wastewater.

[0009] The aforementioned polyaluminum chloride dosing device for treating wastewater with high heavy metal removal rates includes a mixer installed on the treatment shell for mixing polyaluminum chloride and wastewater.

[0010] The above-mentioned polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate includes a uniform distribution component comprising a swaying mesh frame, a positioning slide rod fixedly connected to the side of the swaying mesh frame, and the swaying mesh frame being slidably connected to the side of the treatment shell via the positioning slide rod.

[0011] The aforementioned polyaluminum chloride dosing device for treating wastewater with high heavy metal removal rates includes a uniform distribution component that further comprises a mounting base fixedly connected to the treatment shell. A drive slide rod is slidably connected to the mounting base. The side of the drive slide rod near the swaying mesh frame is fixedly connected to the side of the swaying mesh frame. A force plate is fixedly connected to the other end of the drive slide rod. A return spring is also fixedly connected to the side of the force plate, and the other end of the return spring is fixedly connected to the side of the mounting base.

[0012] The above-mentioned polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate includes a drive assembly comprising a mounting shell fixedly connected to the side of the treatment shell, a servo motor mounted on the mounting shell, and a cam fixedly connected to the output shaft of the servo motor at a position corresponding to the force plate.

[0013] This utility model has at least the following beneficial effects:

[0014] This invention provides a polyaluminum chloride (PAC) dosing device for wastewater treatment with high heavy metal removal rates. By installing a swaying mesh frame below the feeding port and utilizing a servo motor to drive a cam that presses against a force plate at different radii, combined with the elastic force of a return spring, the swaying mesh frame can continuously reciprocate. This design ensures the uniform dispersion of PAC dispensed from the feeding port onto the swaying mesh frame, thereby improving the uniformity of PAC distribution in wastewater. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Fig. 1This is a schematic diagram of the polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate according to this utility model;

[0017] Fig. 2 This is a cross-sectional structural diagram of the polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate according to this utility model;

[0018] Fig. 3 This is a schematic diagram of the uniformly distributed component in the polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate according to this utility model;

[0019] Fig. 4 This is a schematic diagram of the drive component in the polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate according to this utility model.

[0020] Explanation of icon numbers:

[0021] 1. Treatment shell; 2. Wastewater inlet pipe; 3. Discharge pipe; 4. Feed port; 5. Distribution assembly; 6. Drive assembly;

[0022] 101. Mixer;

[0023] 501. Shaking of the mesh frame; 5011. Positioning slide bar;

[0024] 502, Mounting base; 5021, Drive slide bar; 5022, Force plate;

[0025] 503. Return spring;

[0026] 601. Mounting housing; 602. Servo motor; 603. Cam. Detailed Implementation

[0027] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0028] Please refer to Figs. 1 to 4 As shown, an embodiment of the present invention provides a polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate, comprising: a treatment shell 1, a feeding port 4 for adding polyaluminum chloride is provided on the top of the treatment shell 1, a uniform distribution component 5 for uniformly dispersing polyaluminum chloride is installed inside the treatment shell 1 and at the position corresponding to the feeding port 4, and a driving component 6 for driving the uniform distribution component 5 to shake is installed on the side of the treatment shell 1 and at the position corresponding to the position of the uniform distribution component 5.

[0029] By adopting the above technical solution, a swaying mesh frame 501 is set below the feeding port 4, and a servo motor 602 drives a cam 603 to press the force plate 5022 with different radii. Combined with the elastic force of the return spring 503, the swaying mesh frame 501 can move back and forth continuously. This design can evenly disperse the polyaluminum chloride fed from the feeding port 4 onto the swaying mesh frame 501, thereby improving the uniformity of polyaluminum chloride distribution in wastewater.

[0030] In order to achieve continuous treatment and discharge of sewage, in this embodiment: a sewage inlet pipe 2 for sewage to enter is installed on the top of one side of the treatment shell 1, and a discharge pipe 3 for discharging treated sewage is installed on the bottom of the other side of the treatment shell 1. By setting up the sewage inlet pipe 2 and the discharge pipe 3, continuous sewage feeding and smooth discharge of treated sewage are achieved, ensuring the continuity and efficiency of the sewage treatment process and improving the overall treatment efficiency.

[0031] To enhance the mixing effect between polyaluminum chloride and wastewater, in this embodiment, a mixer 101 for stirring and mixing polyaluminum chloride and wastewater is also installed on the treatment shell 1. The mixer 101 can further enhance the mixing effect between polyaluminum chloride and wastewater, promote the full reaction between the two, thereby improving the heavy metal removal rate and ensuring that the treated water quality meets the standards.

[0032] To achieve uniform dispersion of polyaluminum chloride, in this embodiment: the distribution component 5 includes a swaying mesh frame 501. A positioning slide rod 5011 is fixedly connected to the side of the swaying mesh frame 501, and the swaying mesh frame 501 is slidably connected to the side of the treatment shell 1 via the positioning slide rod 5011. The design of the swaying mesh frame 501 ensures uniform dispersion of polyaluminum chloride when it is added to the treatment shell 1, avoiding problems of excessively high or low local concentrations, and improving the contact effect and efficiency between polyaluminum chloride and wastewater. The positioning slide rod 5011 ensures the stability of the swaying mesh frame 501 during the swaying process.

[0033] To drive the swaying mesh frame 501 to reciprocate, in this embodiment: the uniform distribution component 5 further includes a mounting base 502 fixedly connected to the treatment shell 1. A driving slide rod 5021 is slidably connected to the mounting base 502. The side of the driving slide rod 5021 near the swaying mesh frame 501 is fixedly connected to the side of the swaying mesh frame 501, and the other end of the driving slide rod 5021 is fixedly connected to a force plate 5022. A return spring 503 is also fixedly connected to the side of the force plate 5022, and the other end of the return spring 503 is fixedly connected to the side of the mounting base 502. Through the connection between the driving slide rod 5021 and the force plate 5022, and the elastic force of the return spring 503, the reciprocating swaying of the swaying mesh frame 501 is achieved. This design allows the polyaluminum chloride to be more fully dispersed on the swaying mesh frame 501, further improving its contact effect and efficiency with wastewater.

[0034] To provide the power source for the shaking of the swaying mesh frame 501, in this embodiment: the drive assembly 6 includes a mounting shell 601 fixedly connected to the side of the processing shell 1. A servo motor 602 is mounted on the mounting shell 601. A cam 603 is fixedly connected to the output shaft of the servo motor 602 at a position corresponding to the force plate 5022. The combination of the servo motor 602 and the cam 603 provides a stable and reliable power source for the shaking of the swaying mesh frame 501. By pressing the force plate 5022 with different radii by the cam 603, combined with the elastic force of the return spring 503, the reciprocating shaking of the swaying mesh frame 501 is achieved, ensuring the uniform dispersion of polyaluminum chloride.

[0035] The working principle of this utility model is as follows: During the sewage treatment process, sewage is continuously introduced into the treatment shell 1 through the sewage inlet pipe 2. Simultaneously, the user adds polyaluminum chloride (PAC) into the treatment shell 1 through the feeding port 4. At this time, the servo motor 602 is turned on, and the output shaft of the servo motor 602 drives the cam 603 to rotate. During rotation, the cam 603 presses the force plate 5022 with different radii, causing the force plate 5022 to drive the drive slide rod 5021 to slide on the mounting base 502. Since the drive slide rod 5021 is fixedly connected to the swaying mesh frame 501, the swaying mesh frame 501 reciprocates under the guidance of the positioning slide rod 5011. This swaying action ensures that the PAC added from the feeding port 4 onto the swaying mesh frame 501 is evenly dispersed and falls evenly into the sewage inside the treatment shell 1. Simultaneously, the start of the mixer 101 further enhances the mixing effect between the PAC and the sewage, promoting a full reaction between the two. Finally, the treated wastewater is discharged from the treatment shell 1 through the discharge pipe 3, completing the entire wastewater treatment process.

[0036] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A polyaluminum chloride dosing device for treating wastewater with high heavy metal removal rate, comprising a treatment shell (1), characterized in that, The top of the processing shell (1) is provided with a feeding port (4) for adding polyaluminum chloride. Inside the processing shell (1) and at the position corresponding to the feeding port (4), a uniform distribution component (5) for uniformly dispersing polyaluminum chloride is installed. On the side of the processing shell (1) and at the position corresponding to the uniform distribution component (5), a driving component (6) for driving the uniform distribution component (5) to shake is installed.

2. The polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate according to claim 1, characterized in that: A sewage inlet pipe (2) for sewage to enter is installed on the top of one side of the treatment shell (1), and a discharge pipe (3) for discharging treated sewage is installed on the bottom of the other side of the treatment shell (1).

3. The polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate according to claim 2, characterized in that: The processing shell (1) is also equipped with a mixer (101) for mixing polyaluminum chloride and sewage.

4. The polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate according to claim 3, characterized in that: The uniform distribution component (5) includes a swaying mesh frame (501), and a positioning slide rod (5011) is fixedly connected to the side of the swaying mesh frame (501), and the swaying mesh frame (501) is slidably connected to the side of the processing shell (1) through the positioning slide rod (5011).

5. A polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate according to claim 4, characterized in that: The uniform distribution component (5) further includes a mounting base (502) fixedly connected to the processing shell (1). A drive slide rod (5021) is slidably connected to the mounting base (502). The side of the drive slide rod (5021) near the shaking mesh frame (501) is fixedly connected to the side of the shaking mesh frame (501). The other end of the drive slide rod (5021) is fixedly connected to a force plate (5022). A return spring (503) is also fixedly connected to the side of the force plate (5022), and the other end of the return spring (503) is fixedly connected to the side of the mounting base (502).

6. The polyaluminum chloride dosing device for wastewater treatment with high heavy metal removal rate according to claim 4, characterized in that: The drive assembly (6) includes a mounting shell (601) fixedly connected to the side of the processing shell (1), a servo motor (602) is mounted on the mounting shell (601), and a cam (603) is fixedly connected to the output shaft of the servo motor (602) at a position corresponding to the force plate (5022).

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