Accurate dosing device for defluorination of photovoltaic wastewater

Abstract

The utility model discloses a photovoltaic wastewater defluorination accurate dosing device which comprises a treatment box, a water inlet and a water outlet are formed in the treatment box, and a water level sensor is arranged in the treatment box; a fluorine removal agent storage tank and a PAM liquid storage tank are arranged at the top of the treatment box, a PAM agent feeding port and a clear water feeding port are formed in the PAM liquid storage tank, and a first heating wire is arranged in the inner wall of the PAM liquid storage tank; the fluorine removal agent liquid storage tank and the PAM liquid storage tank are respectively connected with a first quantitative cylinder and a second quantitative cylinder, a first sealing piston and a second sealing piston are respectively arranged in the first quantitative cylinder and the second quantitative cylinder, a second heating wire is further arranged in the inner wall of the second quantitative cylinder, and the first quantitative cylinder and the second quantitative cylinder are respectively connected with the treatment box. According to the utility model, the dosing amount can be accurately controlled, the flocculation effect is improved, the efficient use of medicaments is ensured, and the treatment cost is reduced.

Description

Technical Field

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

[0002] Currently, when treating photovoltaic wastewater, defluoridating agents and PAM are usually added to the wastewater. However, when adding chemicals manually, it is impossible to accurately control the dosage. Moreover, PAM can only exert its flocculation effect to the maximum extent when it is fully dissolved in water. Direct addition will affect the flocculation effect due to insufficient dissolution, resulting in waste of chemicals and increased treatment costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a precise dosing device for defluorination of photovoltaic wastewater, which aims to solve the technical problems in the prior art where manual dosing cannot accurately control the dosage, and direct dosing of PAM will affect the flocculation effect due to insufficient dissolution, resulting in waste of reagents and increased treatment costs.

[0004] The technical solution of this utility model is: a precision dosing device for defluorination of photovoltaic wastewater, comprising a treatment tank, an inlet and an outlet on the treatment tank, and a water level sensor inside the treatment tank; a defluorinating agent storage tank and a PAM storage tank are provided on the top of the treatment tank, the PAM storage tank is provided with a PAM agent dosing port and a clean water dosing port, and a first heating wire is provided inside the inner wall of the PAM storage tank; the defluorinating agent storage tank and the PAM storage tank are respectively connected to a first metering cylinder and a second metering cylinder, the first metering cylinder and the second metering cylinder are respectively provided with a first sealing piston and a second sealing piston, and a second heating wire is also provided inside the inner wall of the second metering cylinder, the first metering cylinder and the second metering cylinder are respectively connected to the treatment tank.

[0005] Furthermore, in this utility model, one end of the first metering cylinder is connected to a first drug delivery pipe, the bottom of the defluorinating agent storage tank is connected to the first drug delivery pipe through a first drug outlet pipe, the first drug delivery pipe is also connected to a first drug dosing pipe, the first drug dosing pipe is inserted into the interior of the treatment box, and the first drug outlet pipe and the first drug dosing pipe are respectively provided with a first drug outlet control valve and a first drug dosing control valve.

[0006] Furthermore, in this invention, the other end of the first metering cylinder is connected to a first push-pull rod, which is inserted into the first metering cylinder and fixedly connected to the first sealing piston. The first push-pull rod is driven to extend and retract by a first push-out cylinder.

[0007] Furthermore, in this utility model, one end of the second metering cylinder is connected to a second drug delivery pipe, the bottom of the PAM storage tank is connected to the second drug delivery pipe through a second drug outlet pipe, the second drug delivery pipe is also connected to a second drug dosing pipe, the second drug dosing pipe is inserted into the interior of the processing box, and the second drug outlet pipe and the second drug dosing pipe are respectively provided with a second drug outlet control valve and a second drug dosing control valve.

[0008] Furthermore, in this invention, the other end of the second metering cylinder is connected to a second push-pull rod, which is inserted into the second metering cylinder and fixedly connected to the second sealing piston. The second push-pull rod is driven to extend and retract by the second push-out cylinder.

[0009] Furthermore, the PAM storage tank described in this utility model is equipped with a stirrer inside, and a stirring motor connected to and driving the stirrer is provided on the top of the PAM storage tank.

[0010] Furthermore, the processing box described in this utility model is equipped with a stirring device.

[0011] Compared with the prior art, this utility model has the following advantages: The dosing device of this utility model can quantitatively extract defluorinating agent or PAM from the storage tank through a metering cylinder and add it to the treatment tank, accurately controlling the dosage. In order to improve the flocculation effect, the PAM agent is preheated and stirred with clean water in the PAM storage tank to fully dissolve in the water before being added. At the same time, the corresponding metering cylinder is also equipped with a heating wire to further improve the heating and dissolution effect, thereby ensuring the efficient use of the agent and reducing the treatment cost. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model;

[0013] Figure 2 This is a schematic diagram showing the specific connection between the defluorinating agent storage tank and the treatment box in this utility model;

[0014] Figure 3 This is a schematic diagram showing the specific connection between the PAM storage tank and the processing box in this utility model.

[0015] The components include: 1. Treatment tank; 1a. Inlet; 1b. Outlet; 2. Water level sensor; 3. Defluoridant storage tank; 3a. First dispensing pipe; 3b. First dispensing control valve; 4. PAM storage tank; 4a. Second dispensing pipe; 4b. Second dispensing control valve; 4c. PAM agent dosing port; 4d. Clean water dosing port; 4e. First heating wire; 4f. Stirrer; 4g. Stirring motor; 5. First metering cylinder; 5a. First delivery pipe; 5b. First sealing piston; 5c. First dosing pipe; 5d. First dosing control valve; 6. Second metering cylinder; 6a. Second delivery pipe; 6b. Second sealing piston; 6c. Second dosing pipe; 6d. Second dosing control valve; 6e. Second heating wire; 7. First push-pull rod; 8. First ejection cylinder; 9. Second push-pull rod; 10. Second ejection cylinder. Detailed Implementation

[0016] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Example:

[0018] The accompanying drawings illustrate a specific embodiment of the photovoltaic wastewater defluorination precision dosing device of this utility model. Figure 1 , Figure 2 It mainly includes a treatment tank 1, which is equipped with an inlet 1a and an outlet 1b, and a water level sensor 2 is installed inside the treatment tank 1.

[0019] The top of the treatment tank 1 is equipped with a defluorinating agent storage tank 3, which is connected to a first metering cylinder 5. One end of the first metering cylinder 5 is connected to a first delivery pipe 5a. The bottom of the defluorinating agent storage tank 3 is connected to the first delivery pipe 5a via a first outlet pipe 3a, which is equipped with a first dispensing control valve 3b. The first delivery pipe 5a is also connected to a first dosing pipe 5c, which is inserted into the interior of the treatment tank 1. The first dosing pipe 5c is equipped with a first dosing control valve 5d.

[0020] The first metering cylinder 5 is provided with a first sealing piston 5b. The other end of the first metering cylinder 5 is connected to a first push-pull rod 7. The first push-pull rod 7 is inserted into the first metering cylinder 5 and fixedly connected to the first sealing piston 5b. The first push-pull rod 7 is driven to extend and retract by the first push-out cylinder 8.

[0021] Reference Figure 1 , Figure 3The top of the treatment tank 1 is also equipped with a PAM storage tank 4, which is located on one side of the defluorinating agent storage tank 3. The PAM storage tank 4 is connected to a second metering cylinder 6, one end of which is connected to a second delivery pipe 6a. The bottom of the PAM storage tank 4 is connected to the second delivery pipe 6a via a second outlet pipe 4a, which is equipped with a second outlet control valve 4b. The second delivery pipe 6a is also connected to a second dosing pipe 6c, which is inserted into the interior of the treatment tank 1. The second dosing pipe 6c is equipped with a second dosing control valve 6d.

[0022] The top of the PAM storage tank 4 is equipped with a PAM reagent inlet 4c and a water inlet 4d for adding PAM reagent and water respectively. The interior of the PAM storage tank 4 is equipped with a stirrer 4f, and the top of the PAM storage tank 4 is equipped with a stirring motor 4g connected to and driving the stirrer 4f. The inner wall of the PAM storage tank 4 is equipped with a first heating wire 4e for heating the PAM reagent and water, ensuring the reagent is fully dissolved in the water.

[0023] The second metering cylinder 6 is equipped with a second sealing piston 6b. The other end of the second metering cylinder 6 is connected to a second push-pull rod 9. The second push-pull rod 9 is inserted into the second metering cylinder 6 and fixedly connected to the second sealing piston 6b. The second push-pull rod 9 is driven to extend and retract by the second push-out cylinder 10. The inner wall of the second metering cylinder 6 is also equipped with a second heating wire 6e to enhance the heating and melting effect.

[0024] Not shown, the treatment tank 1 is also equipped with a stirring device to ensure that the reagent and wastewater are fully mixed and reacted.

[0025] In operation, the dosing device of this invention introduces wastewater into the treatment tank 1 through the inlet 1a. The water level sensor 2 detects the water level and stops adding wastewater. Then, the first dispensing control valve 3b is opened and the first dosing control valve 5d is closed. The first push-out cylinder 8 drives the first push-pull rod 7 to retract, causing the first sealing piston 5b to move to the right, drawing the defluorinating agent from the defluorinating agent storage tank 3 into the first metering cylinder 5. Then, the first dispensing control valve 3b is closed and the first dosing control valve 5d is opened. The first push-out cylinder 8 drives the first push-pull rod 7 to extend, causing the first sealing piston 5b to move to the left, adding the agent into the treatment tank 1. After the wastewater reacts with the defluorinating agent for a period of time, the second dispensing control valve 4b is opened and the second dosing control valve 6d is closed. The second push-out cylinder 10 drives the second push-pull rod 9 to retract, causing the second sealing piston 6b to move to the right, drawing the agent from the PAM storage tank 4 into the second metering cylinder 6. Then, the second dispensing control valve 4b is closed and the second dosing control valve 6d is opened. The second push-out cylinder 10 drives the second push-pull rod 9 to extend, causing the second sealing piston 6b to move to the left, adding the agent into the treatment tank 1, thereby achieving precise control of the dosage.

[0026] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A precision dosing device for defluoridation of photovoltaic wastewater, characterized in that: The system includes a treatment tank (1), which has an inlet (1a) and an outlet (1b) and a water level sensor (2) inside. The top of the treatment tank (1) is equipped with a defluorinating agent storage tank (3) and a PAM storage tank (4). The PAM storage tank (4) has a PAM agent dosing port (4c) and a clean water dosing port (4d). The inner wall of the PAM storage tank (4) is equipped with a first heating wire (4e). The defluorinating agent storage tank (3) and the PAM storage tank (4) are respectively connected to a first metering cylinder (5) and a second metering cylinder (6). The first metering cylinder (5) and the second metering cylinder (6) are respectively equipped with a first sealing piston (5b) and a second sealing piston (6b). The inner wall of the second metering cylinder (6) is also equipped with a second heating wire (6e). The first metering cylinder (5) and the second metering cylinder (6) are respectively connected to the treatment tank (1).

2. The photovoltaic wastewater defluoridation precision dosing device according to claim 1, characterized in that: One end of the first metering cylinder (5) is connected to a first delivery pipe (5a). The bottom of the defluorinating agent storage tank (3) is connected to the first delivery pipe (5a) through a first outlet pipe (3a). The first delivery pipe (5a) is also connected to a first dosing pipe (5c). The first dosing pipe (5c) is inserted into the interior of the treatment box (1). The first outlet pipe (3a) and the first dosing pipe (5c) are respectively equipped with a first outlet control valve (3b) and a first dosing control valve (5d).

3. The photovoltaic wastewater defluoridation precision dosing device according to claim 2, characterized in that: The other end of the first metering cylinder (5) is connected to a first push-pull rod (7). The first push-pull rod (7) is inserted into the first metering cylinder (5) and fixedly connected to the first sealing piston (5b). The first push-pull rod (7) is driven to extend and retract by the first push-out cylinder (8).

4. The photovoltaic wastewater defluoridation precision dosing device according to claim 1, characterized in that: One end of the second metering cylinder (6) is connected to a second drug delivery pipe (6a). The bottom of the PAM storage tank (4) is connected to the second drug delivery pipe (6a) through a second drug outlet pipe (4a). The second drug delivery pipe (6a) is also connected to a second drug dosing pipe (6c). The second drug dosing pipe (6c) is inserted into the interior of the processing tank (1). The second drug outlet pipe (4a) and the second drug dosing pipe (6c) are respectively equipped with a second drug dispensing control valve (4b) and a second drug dosing control valve (6d).

5. The photovoltaic wastewater defluoridation precision dosing device according to claim 4, characterized in that: The other end of the second metering cylinder (6) is connected to a second push-pull rod (9). The second push-pull rod (9) is inserted into the second metering cylinder (6) and fixedly connected to the second sealing piston (6b). The second push-pull rod (9) is driven to extend and retract by the second push-out cylinder (10).

6. The photovoltaic wastewater defluoridation precision dosing device according to claim 4, characterized in that: The PAM storage tank (4) is equipped with a stirrer (4f) inside, and a stirring motor (4g) connected to drive the stirrer (4f) is provided on the top of the PAM storage tank (4).

7. The photovoltaic wastewater defluoridation precision dosing device according to claim 1, characterized in that: The processing tank (1) is equipped with a stirring device.

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