Accurate dosing device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to an accurate dosing device for sewage treatment. The chemical feeding mechanism comprises a chemical feeding mechanism and a chemical feeding mechanism; in the dosing mechanism, the position of an extrusion plate in a dosing tank is adjusted through a first electric push rod, so that the dosage of chemicals needing to be added can be controlled according to sewage with different concentrations, and a worker can better judge the filling condition of the chemicals in the dosing tank under the action of a transparent pipe; an extrusion plate is driven to move in the direction of a connecting frame in the sewage dosing process, so that chemicals in a dosing box can better flow into the sewage box from the connecting frame, and meanwhile, under the action of a driving assembly, chemicals retained on one side of the extrusion plate and in the dosing box can be scraped to downwards flow into the sewage box; the chemical dosage in the chemical adding box can fully enter the sewage box, so that the chemical dosage adding accuracy during sewage treatment is ensured, and the sewage treatment effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a precision dosing device for wastewater treatment. Background Technology

[0002] Wastewater refers to wastewater discharged from domestic and industrial processes that has been polluted to a certain extent. When treating wastewater, various agents, such as flocculants and disinfectants, are usually added to improve the treatment effect. Furthermore, the dosage of the agents needs to be precisely controlled to ensure the treatment effect on wastewater of different concentrations.

[0003] A search revealed that the Chinese patent "A Precision Dosing Device for Wastewater Treatment" (authorization announcement number CN220364377U) uses a turntable to move a limiting column and a connecting rod that are rotatably connected to its side wall. Subsequently, the connecting rod moves a moving rod fixedly connected to its end, thereby moving a metering tube. When the through hole at the upper end of the metering tube coincides with the through hole on the partition, the liquid medicine will enter the interior of the metering tube. As the turntable rotates, it will push the metering tube towards the L-shaped rod until the end of the L-shaped rod pushes the lower end of the sealing plate relative to it and lifts it up. This allows the metering tube to be opened, and the liquid medicine inside the metering tube to be discharged and fall into the mixing tank, thus facilitating the metered dosing inside the mixing tank.

[0004] Although the above application allows for quantitative dosing, the sealing plate gradually tilts during the dosing process, making it impossible to ensure that the reagent in the metering tube flows out fully. This affects the accuracy of the dosage and reduces the treatment effect on the wastewater.

[0005] Therefore, a precision dosing device for wastewater treatment is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a precise dosing device for wastewater treatment to solve the above-mentioned problems. It improves the problem that the sealing plate cannot guarantee the full outflow of the reagent in the metering tube after it gradually tilts, thus affecting the accuracy of the reagent dosage and reducing the treatment effect of wastewater.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a precision dosing device for sewage treatment, comprising: a storage tank; a dosing mechanism, the dosing mechanism including a dosing tank, an extrusion plate slidably connected to the inner wall of the dosing tank, a scraper slidably connected to one side of the extrusion plate, a first electric push rod fixedly connected to one side of the dosing tank, the telescopic end of the first electric push rod penetrating into the dosing tank and fixedly connected to the other side of the extrusion plate, a connecting pipe communicating between the top of the dosing tank and the storage tank, a transparent tube embedded in the inner wall of the connecting pipe, a connecting frame communicating with one side of the bottom of the dosing tank, a sealing plate slidably connected to one side of the inner wall of the connecting frame, and a driving assembly provided on the other side of the dosing tank.

[0008] Preferably, the driving assembly includes a mounting plate slidably connected to the inner wall of the connecting frame; a clamping plate is fixedly connected to the upper end of one side of the mounting plate; a round rod is fixedly connected to the bottom end of the scraper; a through hole is formed at the lower end of the surface of the round rod; a lead screw is rotatably connected to the other side of the dosing tank; a moving rod is threadedly connected to the surface of the lead screw; and the other end of the moving rod is fixedly connected to the other side of the mounting plate. This facilitates driving the scraper downwards while ensuring normal operation of the device.

[0009] Preferably, a marker is fixedly connected to the other side of the extrusion plate, and the surface of the dosing tank is provided with scale lines. This allows operators to more intuitively adjust the position of the extrusion plate.

[0010] Preferably, a magnifying glass is fixedly connected to the surface of the dosing tank, and the magnifying glass is positioned at the front end of the transparent tube. This facilitates better understanding of the liquid inside the transparent tube by the operator.

[0011] Preferably, a slider is fixedly connected to one side of the scraper, and the surface of the slider is slidably connected to the inner wall of the extrusion plate. This helps to limit the movement path of the scraper during its downward movement.

[0012] Preferably, a second electric push rod is fixedly connected to one side of the connecting frame, and one end of the second electric push rod is fixedly connected to one side of the sealing plate. This facilitates better adjustment of the position of the sealing plate.

[0013] Preferably, both sides of the bottom end of the scraper form an angle with the horizontal plane. This helps to reduce the contact area between the sides of the scraper and the extrusion plate and the inner wall of the dosing tank during the downward movement of the scraper.

[0014] The beneficial effects of this utility model are:

[0015] 1. In the above-mentioned dosing mechanism, the position of the extrusion plate in the dosing tank is adjusted by the first electric push rod. This facilitates the control of the required dosage of chemicals according to different concentrations of wastewater. The transparent tube also helps the operator to better judge the filling status of the chemicals in the dosing tank. During the dosing process, the extrusion plate is driven to move towards the connecting frame, which helps the chemicals in the dosing tank to flow better from the connecting frame into the wastewater tank. At the same time, under the action of the drive component, the chemicals on one side of the extrusion plate and those remaining in the dosing tank are scraped downwards and flow into the wastewater tank. This ensures that the dosage of chemicals in the dosing tank is fully delivered into the wastewater tank, guaranteeing the accuracy of the dosage during wastewater treatment and thus improving the treatment effect of wastewater.

[0016] 2. The scale markings on the markers make it easier for staff to adjust the position of the extrusion plate more intuitively. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the drug dispensing mechanism of this utility model;

[0019] Figure 3 This is a cross-sectional view of the dosing tank of this utility model;

[0020] Figure 4 This is an exploded view of the extrusion plate and scraper of this utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the sealing plate, mounting plate and connecting frame of this utility model;

[0022] Figure 6 This is a schematic diagram of the installation structure of this utility model.

[0023] In the diagram: 100, medicine storage tank; 200, dosing mechanism; 210, dosing tank; 211, first electric push rod; 212, extrusion plate; 213, marker; 214, scale line; 220, connecting pipe; 221, transparent pipe; 230, connecting frame; 240, second electric push rod; 250, sealing plate; 260, drive assembly; 261, lead screw; 262, moving rod; 263, mounting plate; 264, clamping plate; 265, round rod; 266, through hole; 270, scraper; 271, slider; 280, magnifying glass. Detailed Implementation

[0024] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In practical implementation: such as Figure 1-6 As shown, a precision dosing device for wastewater treatment includes: a storage tank 100; a dosing mechanism 200, the dosing mechanism 200 including a dosing tank 210, an extrusion plate 212 slidably connected to the inner wall of the dosing tank 210, a scraper 270 slidably connected to one side of the extrusion plate 212, a first electric push rod 211 fixedly connected to one side of the dosing tank 210, the telescopic end of the first electric push rod 211 penetrating into the dosing tank 210 and fixedly connected to the other side of the extrusion plate 212, a connecting pipe 220 communicating between the top of the dosing tank 210 and the storage tank 100, a transparent tube 221 embedded in the inner wall of the connecting pipe 220, a connecting frame 230 communicating with one side of the bottom end of the dosing tank 210, a sealing plate 250 slidably connected to one side of the inner wall of the connecting frame 230, and a driving assembly 260 provided on the other side of the dosing tank 210.

[0026] In this embodiment, the top of the medicine storage tank 100 is provided with a medicine inlet. When the device is in use, the medicine is poured into the medicine storage tank 100 through the medicine inlet. A solenoid valve is provided at the lower end of the surface of the connecting pipe 220. The flow state of the medicine in the connecting pipe 220 is controlled by the solenoid valve.

[0027] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the drive assembly 260 includes a mounting plate 263 slidably connected to the inner wall of the connecting frame 230. A clamping plate 264 is fixedly connected to the upper end of one side of the mounting plate 263. A round rod 265 is fixedly connected to the bottom end of the scraper 270. A through hole 266 is opened at the lower end of the surface of the round rod 265. A lead screw 261 is rotatably connected to the other side of the dosing tank 210. A moving rod 262 is threadedly connected to the surface of the lead screw 261. The other end of the moving rod 262 is fixedly connected to the other side of the mounting plate 263.

[0028] In this embodiment, see Figure 6The storage tank 100 is fixed to the upper surface of the sewage tank with a fixed bracket. The dosing tank 210 is installed at the top of the sewage tank. The bottom end of the connecting frame 230 extends into the sewage tank. The surface of the moving rod 262 is slidably connected to the inner wall of the sewage tank. In the initial state, the other side of the sealing plate 250 is attached to one side of the mounting plate 263 to seal the connecting frame 230. The center point of the through hole 266 and the center point of the clamping plate 264 are on the same vertical plane, and the shape of the clamping plate 264 matches the shape of the through hole 266.

[0029] like Figure 2 As shown, a pointer 213 is fixedly connected to the other side of the extrusion plate 212, and a scale line 214 is provided on the surface of the dosing tank 210. The surface of the pointer 213 is slidably connected to the inner wall of the dosing tank 210, and the other end of the surface is located on the same vertical plane as one side of the extrusion plate 212. The position of the scale line 214 corresponding to the pointer 213 is the position of the scale line 214 corresponding to one side of the extrusion plate 212.

[0030] like Figure 2 and Figure 3 As shown, a magnifying glass 280 is fixedly connected to the surface of the dosing tank 210, and the magnifying glass 280 is set at the front end of the transparent tube 221. The magnifying glass 280 can magnify the transparent tube 221, allowing the operator to better understand the liquid inside the transparent tube 221.

[0031] like Figure 4 As shown, a slider 271 is fixedly connected to one side of the scraper 270, and the surface of the slider 271 is slidably connected to the inner wall of the extrusion plate 212.

[0032] In this embodiment, a groove matching the slider 271 is provided on one side of the extrusion plate 212. The slider 271 and the groove limit the movement path of the scraper 270 during its downward movement.

[0033] like Figure 5 As shown, a second electric push rod 240 is fixedly connected to one side of the connecting frame 230, and one end of the second electric push rod 240 is fixedly connected to one side of the sealing plate 250.

[0034] In this embodiment, the second electric push rod 240 is opened by the controller. At this time, the telescopic end of the second electric push rod 240 will drive the sealing plate 250 to move away from the mounting plate 263, thereby releasing the seal on the connecting frame 230.

[0035] like Figure 4 As shown, both sides of the bottom end of the scraper 270 form an angle with the horizontal plane. This reduces the contact area between the sides of the scraper 270 and the extrusion plate 212 and the inner wall of the dosing tank 210 during the downward movement of the scraper 270.

[0036] In use, the agent is added to the storage tank 100, and the controller activates the first electric push rod 211 to move the extrusion plate 212, which in turn moves the marker 213. When the other end of the marker 213 aligns with the scale line 214 corresponding to the required amount of agent for wastewater treatment, the first electric push rod 211 is closed. At this time, the solenoid valve on the surface of the connecting pipe 220 is opened to allow the agent in the storage tank 100 to enter the dosing tank 210. When the operator observes liquid in the transparent tube 221 through the magnifying glass 280, the dosing tank 210 is filled with the required amount of agent. The solenoid valve is then closed, and simultaneously, the seal on the connecting frame 230 is released, allowing the agent in the dosing tank 210 to enter the wastewater tank. At the same time, the first electric push rod 211 is activated again to push the extrusion plate 212. The extrusion plate 212 moves towards the connecting frame 230, allowing the chemicals in the dosing tank 210 to flow better from the connecting frame 230 into the sewage tank. During the movement of the extrusion plate 212, when the other side of the scraper 270 contacts the inner wall of the dosing tank 210, the clamping plate 264 enters the through hole 266. At this time, the first electric push rod 211 is closed, and the lead screw 261 in the drive assembly 260 is rotated to move the moving rod 262 downward. This causes the moving rod 262 to drive the scraper 270 to move downward synchronously through the mounting plate 263, the clamping plate 264, and the through hole 266. This allows the scraper 270 to scrape away the chemicals retained on one side of the extrusion plate 212 and in the dosing tank 210. The scraped-away chemicals flow downward and enter the sewage tank through the connecting frame 230, thus ensuring that the required dosage of chemicals for sewage treatment is fully delivered into the sewage tank.

[0037] It should be noted that the electric actuators, solenoid valves, magnifying glasses, etc. mentioned above are all devices with relatively mature existing technologies. The specific models can be selected according to actual needs. At the same time, the electric actuators and solenoid valves can be powered by built-in power supplies or mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision dosing device for wastewater treatment, characterized in that, include: Medicine storage box (100); A dosing mechanism (200) includes a dosing tank (210), an extrusion plate (212) is slidably connected to the inner wall of the dosing tank (210), a scraper (270) is slidably connected to one side of the extrusion plate (212), a first electric push rod (211) is fixedly connected to one side of the dosing tank (210), the telescopic end of the first electric push rod (211) passes through the dosing tank (210) and is fixedly connected to the other side of the extrusion plate (212), a connecting pipe (220) is connected between the top of the dosing tank (210) and the storage tank (100), a transparent tube (221) is embedded in the inner wall of the connecting pipe (220), a connecting frame (230) is connected to one side of the bottom end of the dosing tank (210), a sealing plate (250) is slidably connected to one side of the inner wall of the connecting frame (230), and a driving assembly (260) is provided on the other side of the dosing tank (210).

2. The precision dosing device for wastewater treatment according to claim 1, characterized in that: The drive assembly (260) includes an installation plate (263) slidably connected to the inner wall of the connecting frame (230). A clamping plate (264) is fixedly connected to the upper end of one side of the installation plate (263). A round rod (265) is fixedly connected to the bottom end of the scraper (270). A through hole (266) is opened at the lower end of the surface of the round rod (265). A lead screw (261) is rotatably connected to the other side of the dosing tank (210). A moving rod (262) is threadedly connected to the surface of the lead screw (261). The other end of the moving rod (262) is fixedly connected to the other side of the installation plate (263).

3. The precision dosing device for wastewater treatment according to claim 1, characterized in that: A marker (213) is fixedly connected to the other side of the extrusion plate (212), and scale lines (214) are provided on the surface of the dosing box (210).

4. The precision dosing device for wastewater treatment according to claim 1, characterized in that: A magnifying glass (280) is fixedly connected to the surface of the dosing box (210), and the magnifying glass (280) is located at the front end of the transparent tube (221).

5. A precision dosing device for wastewater treatment according to claim 1, characterized in that: A slider (271) is fixedly connected to one side of the scraper (270), and the surface of the slider (271) is slidably connected to the inner wall of the extrusion plate (212).

6. A precision dosing device for wastewater treatment according to claim 1, characterized in that: A second electric push rod (240) is fixedly connected to one side of the connecting frame (230), and one end of the second electric push rod (240) is fixedly connected to one side of the sealing plate (250).

7. A precision dosing device for wastewater treatment according to claim 1, characterized in that: The bottom two sides of the scraper (270) form an angle with the horizontal plane.

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