Sewage treatment dephosphorization dosing device

Abstract

The utility model discloses a dephosphorization dosing device for sewage treatment, relates to the field of dosing devices, and aims to solve the problem that the dosing device in the prior art is not provided with a proportioning mechanism, so that the dosing amount is not accurately controlled, and the sewage dephosphorization effect is further influenced. A dosing pipe and a water injection pipe are fixedly connected to the two sides of the middle of the upper end of the dilution tank respectively, metering pumps are connected to the upper ends of the dosing pipe and the water injection pipe, a phosphorus removal agent storage tank is connected to the upper end of the metering pump at the upper end of the dosing pipe, and a water supply pipe is connected to the upper end of the metering pump at the upper end of the water injection pipe; according to the sewage treatment dephosphorization device, the metering pump is arranged to be connected with the chemical adding pipe and the water injection pipe, the adding proportion of a dephosphorization agent and clear water can be accurately controlled, it is ensured that the chemical proportion is accurate, and the sewage treatment dephosphorization effect is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of dosing devices, specifically a wastewater treatment phosphorus removal dosing device. Background Technology

[0002] Phosphorus removal in wastewater treatment refers to the removal of phosphorus from wastewater through physical, chemical, or biological methods to prevent eutrophication. Phosphorus mainly originates from domestic sewage, agricultural runoff, and industrial wastewater; excessive discharge can lead to algal blooms and water quality deterioration. Phosphorus removal technologies include: 1) chemical precipitation, which involves adding aluminum salts, iron salts, or lime to form phosphate precipitates; 2) biological phosphorus removal, which utilizes polyphosphate-accumulating bacteria in an alternating anaerobic-aerobic environment to absorb excess phosphorus; and 3) physical methods such as adsorption or membrane filtration. Phosphorus removal is a crucial step in advanced wastewater treatment and is of great significance for ecological protection. When using phosphorus removal agents, they need to be administered through a dosing system.

[0003] For example, patent announcement number CN222099655U discloses a wastewater treatment phosphorus removal dosing device, relating to the field of dosing devices. This device includes a base frame, a dosing cylinder connected to the base frame, a feeding port on the top end face of the dosing cylinder, a stirring device installed inside the dosing cylinder, and a discharge pipe for discharging the phosphorus removal agent from inside the dosing cylinder. This wastewater treatment phosphorus removal dosing device, by providing a feeding mechanism at the feeding port of the dosing cylinder, allows for feeding into the dosing cylinder without connecting the feeding port to the external environment. It also enables timely feeding of the solid raw materials required for phosphorus removal agent production into the dosing cylinder, meeting the production requirements of phosphorus removal agents of different concentrations and improving the overall processing rate.

[0004] However, the dosing device in the above technology does not have a proportioning mechanism, which leads to inaccurate control of the dosage of the agent, thus affecting the phosphorus removal effect of the wastewater. Therefore, there is an urgent need in the market to develop a wastewater treatment phosphorus removal dosing device to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a wastewater treatment phosphorus removal dosing device to solve the problem mentioned in the background art that the dosing device does not have a proportioning mechanism, resulting in inaccurate control of the dosage of the agent, which in turn affects the phosphorus removal effect of the wastewater.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment phosphorus removal dosing device, comprising a dilution tank, wherein a dosing pipe and a water injection pipe are fixedly connected to both sides of the upper middle part of the dilution tank, and a metering pump is connected to the upper end of both the dosing pipe and the water injection pipe. The upper end of the metering pump at the upper end of the dosing pipe is connected to a phosphorus removal agent storage tank, and the upper end of the metering pump at the upper end of the water injection pipe is connected to a water supply pipe. A rotating shaft is rotatably connected to the middle part inside the dilution tank, and a spiral blade is fixedly connected to the lower end of the rotating shaft.

[0007] Preferably, the upper ends of the dosing pipe and the water injection pipe are fixedly connected to a first flange, and the lower ends of the two metering pumps are fixedly connected to a second flange. The lower ends of the two metering pumps are fixedly connected to the upper ends of the dosing pipe and the water injection pipe by first bolts.

[0008] Preferably, a liquid outlet pipe is fixedly installed at the lower middle part of the phosphorus removal agent storage tank, and a fourth flange is fixedly connected to both the lower end of the liquid outlet pipe and the lower end of the water supply pipe.

[0009] Preferably, a third flange is fixedly connected to the upper end of each of the two metering pumps, and the third flanges at the upper ends of the two metering pumps are respectively fixedly connected to the fourth flanges at the lower ends of the liquid outlet pipe and the water supply pipe by second bolts.

[0010] Preferably, a filling pipe is fixedly connected to one side of the middle of the upper end face of the phosphorus removal agent storage tank, and a sealing cap is provided on the filling pipe, with the sealing cap and the filling pipe being threadedly connected.

[0011] Preferably, a drain pipe is fixedly installed at the lower middle part of the dilution tank, and a control valve is installed on the drain pipe.

[0012] Preferably, a driving device is fixedly installed in the middle of the upper end face of the dilution tank, a driving motor is fixedly installed inside the driving device, and the upper end of the rotating shaft extends into the drive device and is fixedly connected to the output shaft of the driving motor.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, by setting a metering pump to connect the dosing pipe and the water injection pipe respectively, the dosing ratio of phosphorus removal agent and clean water can be accurately controlled, ensuring accurate reagent ratio and significantly improving the phosphorus removal effect of sewage treatment.

[0015] (2) In this utility model, a design of spiral blades and drive device is adopted to achieve full mixing of medicine and water by rotating and stirring, avoiding medicine precipitation and ensuring the uniformity and stability of the mixed solution.

[0016] (3) In this utility model, the overall structure adopts a modular flange connection method, which facilitates the disassembly, maintenance and replacement of each component. At the same time, the design of the sealing cover and the filling pipe facilitates the replenishment of the agent and effectively prevents volatilization, thus improving the practicality and reliability of the device. Attached Figure Description

[0017] Figure 1 This is a front view of a wastewater treatment phosphorus removal dosing device according to the present invention;

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a side sectional view of the present invention;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Dilution tank; 101. Dosing pipe; 102. Water injection pipe; 103. First flange; 104. Drain pipe; 105. Control valve; 2. Metering pump; 201. Second flange; 202. First bolt; 203. Third flange; 204. Second bolt; 3. Phosphate removal agent storage tank; 301. Discharge pipe; 302. Injection pipe; 303. Sealing cap; 4. Water supply pipe; 5. Fourth flange; 6. Rotating shaft; 601. Spiral blade; 7. Drive unit; 701. Drive motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a wastewater treatment phosphorus removal dosing device, comprising a dilution tank 1. A dosing pipe 101 and a water injection pipe 102 are fixedly connected to both sides of the upper middle portion of the dilution tank 1. Metering pumps 2 are connected to the upper ends of both the dosing pipe 101 and the water injection pipe 102. A phosphorus removal agent storage tank 3 is connected to the upper end of the metering pump 2 at the upper end of the dosing pipe 101. A filling pipe 302 is fixedly connected to one side of the upper middle portion of the phosphorus removal agent storage tank 3. A sealing cap 303 is provided on the filling pipe 302. The cap 303 is threadedly connected to the injection pipe 302. The injection pipe 302 is sealed by the cap 303. The metering pump 2 at the upper end of the water injection pipe 102 is connected to the water supply pipe 4. By opening the cap 303, the dephosphorizing agent is injected into the dephosphorizing agent storage tank 3 through the injection pipe 302. During the mixing process, the dephosphorizing agent and clean water are injected through the two metering pumps 2 through the dosing pipe 101 and the water injection pipe 102 respectively according to the required ratio, so that the dephosphorizing agent and clean water are mixed in equal proportion inside the dilution tank 1.

[0024] Please see Figure 2 and Figure 3A rotating shaft 6 is rotatably connected to the middle of the inside of the dilution tank 1. A spiral blade 601 is fixedly connected to the lower end of the rotating shaft 6. A drive device 7 is fixedly installed in the middle of the upper end face of the dilution tank 1. A drive motor 701 is fixedly installed inside the drive device 7. The upper end of the rotating shaft 6 extends into the inside of the drive device 7 and is fixedly connected to the output shaft of the drive motor 701. When the phosphorus removal agent and clean water are added into the dilution tank 1 in equal proportion, the drive motor 701 drives the rotating shaft 6 to rotate, which in turn drives the spiral blade 601 to rotate. The rotation of the spiral blade 601 is used to stir and mix the phosphorus removal agent and clean water inside the dilution tank 1. A drain pipe 104 is fixedly installed in the middle of the lower end of the dilution tank 1. A control valve 105 is installed on the drain pipe 104. After the phosphorus removal agent and clean water are mixed, they are transported to the sewage through the drain pipe 104 via the control valve 105 for phosphorus removal.

[0025] Please see Figure 2 and Figure 4 The upper ends of the dosing pipe 101 and the water injection pipe 102 are both fixedly connected to a first flange 103. The lower ends of the two metering pumps 2 are both fixedly connected to a second flange 201. The lower ends of the two metering pumps 2 are fixedly connected to the first flanges 103 at the upper ends of the dosing pipe 101 and the water injection pipe 102 respectively by first bolts 202. The lower middle part of the phosphorus removal agent storage tank 3 is fixedly provided with an outlet pipe 301. The lower ends of the outlet pipe 301 and the lower ends of the water supply pipe 4 are both fixedly connected to a fourth flange 5. The upper ends of the two metering pumps 2 are both fixedly connected to a third flange 203. The upper ends of the two metering pumps 2 are fixedly connected to the lower ends of the outlet pipe 301 and the lower ends of the water supply pipe 4 by second bolts 204.

[0026] Working Principle: In use, first open the sealing cap 303 and add liquid phosphorus remover to the phosphorus remover storage tank 3 through the injection pipe 302. After completion, tighten the sealing cap 303 to prevent evaporation. When reagent mixing is required, start the metering pump 2 at the top of the injection pipe 101 and the water injection pipe 102 to accurately extract the phosphorus remover from the phosphorus remover storage tank 3 and the clean water from the water supply pipe 4, simultaneously delivering them to the dilution tank 1 according to the preset ratio. At this time, the drive motor 701 drives the rotating shaft 6 and the spiral blade 601 to rotate, and the spiral agitation ensures thorough mixing of the reagent and water, forming a uniform phosphorus removal solution. After mixing, open the control valve 105 on the drain pipe 104 to quantitatively add the prepared solution to the wastewater treatment system. Throughout the process, the metering pump 2 achieves precise dosing, and the spiral agitation ensures effective mixing, thereby guaranteeing the optimal treatment effect of the phosphorus remover.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sewage treatment phosphorus removal dosing device comprising a dilution tank (1), characterized in that: The both sides of the middle part of the upper end of the dilution tank (1) are fixedly connected with a dosing pipe (101) and a water injection pipe (102), the upper end of the dosing pipe (101) and the water injection pipe (102) is connected with a metering pump (2), the upper end of the metering pump (2) of the dosing pipe (101) is connected with a phosphorus removal agent storage tank (3), the upper end of the metering pump (2) of the water injection pipe (102) is connected with a water supply pipe (4), the middle part of the inside of the dilution tank (1) is rotatably connected with a rotating shaft (6), the lower end of the rotating shaft (6) is fixedly connected with a spiral blade (601).

2. The sewage treatment phosphorus removal and reagent feeding device according to claim 1, characterized in that: The upper end of the dosing pipe (101) and the water injection pipe (102) is fixedly connected with a first flange plate (103), the lower end of the two metering pumps (2) is fixedly connected with a second flange plate (201), the second flange plate (201) of the lower end of the two metering pumps (2) is fixedly connected with the first flange plate (103) of the upper end of the dosing pipe (101) and the water injection pipe (102) through the first bolt (202).

3. The sewage treatment phosphorus removal and reagent feeding device according to claim 1, characterized in that: The lower end of the phosphorus removal agent storage tank (3) is fixedly provided with a liquid outlet pipe (301), and the lower end of the liquid outlet pipe (301) and the lower end of the water supply pipe (4) are fixedly connected with a fourth flange plate (5).

4. The sewage treatment phosphorus removal and reagent feeding device according to claim 1, characterized in that: The upper end of the two metering pumps (2) is fixedly connected with a third flange plate (203), and the third flange plate (203) of the upper end of the two metering pumps (2) is fixedly connected with the fourth flange plate (5) of the lower end of the liquid outlet pipe (301) and the lower end of the water supply pipe (4) through the second bolt (204).

5. The sewage treatment phosphorus removal and reagent feeding device according to claim 1, characterized in that: The upper end of the phosphorus removal agent storage tank (3) is fixedly connected with a filling pipe (302) on one side of the middle part of the upper end surface, and a sealing cover (303) is arranged on the filling pipe (302), and the sealing cover (303) is threadedly connected with the filling pipe (302).

6. The sewage treatment phosphorus removal and reagent feeding device according to claim 1, characterized in that: The lower end of the dilution tank (1) is fixedly provided with a liquid discharge pipe (104), and the liquid discharge pipe (104) is provided with a control valve (105).

7. The sewage treatment phosphorus removal and reagent feeding device according to claim 1, characterized in that: The upper end of the dilution tank (1) is fixedly provided with a driving device (7), and the inside of the driving device (7) is fixedly provided with a driving motor (701), and the upper end of the rotating shaft (6) extends into the inside of the driving device (7) and is fixedly connected with the output shaft of the driving motor (701).

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