Accurate dosing device for defluorination of semiconductor wastewater

Abstract

The utility model discloses a semiconductor wastewater defluorination accurate dosing device which comprises a wastewater tank, a dosing device is arranged above the wastewater tank, the dosing device comprises a liquid storage tank and a dosing tank rotationally connected to the bottom of the liquid storage tank, a plurality of liquid outlet holes arranged around the center of the liquid storage tank are formed in the bottom surface of the liquid storage tank, and a piston pushing mechanism is arranged on one side of each liquid outlet hole; the dosing box is provided with a plurality of quantitative liquid storage tanks in one-to-one correspondence with the liquid outlet holes, the capacities of the quantitative liquid storage tanks are different, the bottom of each quantitative liquid storage tank is provided with a liquid outlet control valve, the bottom of the dosing box is provided with dosing holes in one-to-one correspondence with the quantitative liquid storage tanks, and the quantitative liquid storage tanks are used for receiving medicaments from the liquid outlet holes respectively. And after the quantitative liquid storage tank rotates to correspond to the piston pushing mechanisms, the piston pushing mechanisms are used for pushing out the medicament in the quantitative liquid storage tank. During dosing, one or more quantitative liquid storage tanks can be selected to be added independently or in a combined mode, the dosing amount is accurately controlled according to needs, and the defluorination 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 defluorination of semiconductor wastewater. Background Technology

[0002] Defluoridating agents are chemical agents used in water treatment, mainly to remove fluoride ions from water. When treating semiconductor wastewater, defluoridating agents are often added to the wastewater for subsequent purification. Currently, the dosing is usually done manually, which makes it impossible to accurately control the dosage and affects the defluoridation effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a precision dosing device for defluoridation of semiconductor wastewater, which aims to solve the technical problem that manual dosing cannot accurately control the dosage and affects the defluoridation effect.

[0004] The technical solution of this utility model is: a precision dosing device for defluorination of semiconductor wastewater, including a wastewater tank, a dosing device above the wastewater tank, the dosing device including a storage tank and a dosing tank rotatably connected to the bottom of the storage tank, the bottom surface of the storage tank having multiple outlet holes arranged around its center, and a piston pushing mechanism being provided on one side of each outlet hole; the dosing tank having multiple quantitative storage tanks corresponding one-to-one with each outlet hole, each quantitative storage tank having a different capacity, and each quantitative storage tank having an outlet control valve at its bottom; the bottom of the dosing tank having dosing holes corresponding one-to-one with each quantitative storage tank, each quantitative storage tank receiving the agent from each outlet hole, and after rotating to correspond to each piston pushing mechanism, the agent in the quantitative storage tank is pushed out by the piston pushing mechanism.

[0005] Furthermore, in this utility model, the dosing device is installed on the wastewater tank via a support frame, and the support frame is fixedly connected to the storage tank.

[0006] Furthermore, in this utility model, a motor is installed at the center of the internal structure of the liquid storage tank, and the output shaft of the motor is connected to the dosing tank. The dosing tank has a connection hole for connecting to the output shaft.

[0007] Furthermore, in this invention, each of the liquid outlet holes is distributed at equal angles around the center of the liquid storage tank, the liquid storage tank has a liquid storage cavity inside, each of the liquid outlet holes is connected to the liquid storage cavity, and the top of the liquid storage tank is provided with a dosing port.

[0008] Furthermore, the piston pushing mechanism described in this utility model includes a piston that is driven to extend and retract by a cylinder. The liquid storage tank has a through-hole for installing the piston pushing mechanism. The piston is movably installed in the mounting hole. The cylinder extends into the mounting hole and is connected to the piston. A positioning bracket is connected to the top of the cylinder and is connected to the top surface of the liquid storage tank through the positioning bracket.

[0009] Furthermore, in this invention, the liquid storage tank and the dosing tank are connected in a sealed rotatable connection.

[0010] Compared with the prior art, the present invention has the following advantages: The dosing device of the present invention is divided into two parts, upper and lower. The upper storage tank is used to provide the agent and perform the dosing action, and the lower dosing tank is used to realize the quantitative dispensing of the agent. During the dosing, one or more agents in the quantitative storage tank can be selected for individual or combined addition. The amount of agent added can be precisely controlled as needed to improve the defluorination effect. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a perspective view of the liquid storage tank of the dosing device described in this utility model;

[0013] Figure 3 This is a perspective view of the liquid storage tank of the dosing device described in this utility model from another angle;

[0014] Figure 4 This is a perspective view of the dosing box of the dosing device described in this utility model;

[0015] Figure 5 This is a schematic diagram of the internal structure of the dosing tank of the dosing device described in this utility model.

[0016] The components are: 1. Wastewater tank; 2. Dosing device; 201. Storage tank; 202. Dosing tank; 3. Discharge port; 4. Cylinder; 5. Piston; 6. Mounting hole; 7. Positioning bracket; 8. Quantitative storage tank; 9. Discharge control valve; 10. Dosing port; 11. Support frame; 12. Output shaft; 13. Connection hole; 14. Dosing port. Detailed Implementation

[0017] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] Example:

[0019] The accompanying drawings illustrate a specific embodiment of the semiconductor wastewater defluorination precision dosing device of this utility model. Figure 1The system mainly includes a wastewater tank 1, with a dosing device 2 installed above the wastewater tank 1. The dosing device 2 includes a storage tank 201 and a dosing tank 202 rotatably connected to the bottom of the storage tank 201. The storage tank 201 and the dosing tank 202 are rotatably connected in a sealed manner. The dosing device 2 is installed on the wastewater tank 1 via a support frame 11, which is fixedly connected to the storage tank 201.

[0020] Reference Figures 2 to 5 A motor is installed in the center of the liquid storage tank 201. The output shaft 12 of the motor is connected to the dosing tank 202. The dosing tank 202 has a connection hole 13 for connecting to the output shaft 12. The motor can drive the dosing tank 202 to rotate.

[0021] The storage tank 201 has a storage cavity inside, and a dosing port 14 is provided on the top of the storage tank 201. The dosing port 14 is connected to the storage cavity, and the medicine can be added into the storage tank 201 through the dosing port 14. The bottom surface of the storage tank 201 has multiple outlet holes 3, which are distributed at equal angles around the center of the storage tank 201. Each outlet hole 3 is connected to the storage cavity, and the medicine can flow out through the outlet hole 3.

[0022] Each outlet port 3 is equipped with a piston pushing mechanism on one side. Each piston pushing mechanism includes a piston 5 driven by a cylinder 4 to extend and retract. The storage tank 201 has a through-hole 6 for installing the piston pushing mechanism. The piston 5 is movably installed in the mounting hole 6. The cylinder 4 extends into the mounting hole 6 and connects to the piston 5. A positioning bracket 7 is connected to the top of the cylinder 4 and is connected to the top surface of the storage tank 201 through the positioning bracket 7. The cylinder 4 can drive the piston 5 to extend and retract, using the piston 5 to push out the medicine in the dosing tank 202.

[0023] The dosing tank 202 is equipped with multiple metered liquid storage tanks 8, each corresponding to a different outlet port 3. Each metered liquid storage tank 8 has a different capacity. A dispensing control valve 9 is located at the bottom of each metered liquid storage tank 8, and the bottom of the dosing tank 202 also has a dosing port 10 corresponding to each metered liquid storage tank 8. The metered liquid storage tank 8 is used to receive the reagent; opening the dispensing control valve 9 releases the reagent, which flows out from the dosing port 10.

[0024] In the specific operation of the dosing device of this utility model, the quantitative storage tank 8 of the dosing tank 202 corresponds one-to-one with the outlet hole 3 of the storage tank 201. After each quantitative storage tank 8 receives the agent, the motor is activated to drive the dosing tank 202 to rotate, so that the quantitative storage tank 8 corresponds one-to-one with the mounting hole 6 of the storage tank 201. Then, according to the required amount of agent to be added, the corresponding cylinder 4 drives the piston 5 to extend and retract, the corresponding outlet control valve 9 opens, and the piston 5 extends into the quantitative storage tank 8 to help push out the agent, so that the agent can be added into the wastewater tank 1.

[0025] 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 semiconductor wastewater, characterized in that: The system includes a wastewater tank (1), above which is a dosing device (2). The dosing device (2) includes a storage tank (201) and a dosing tank (202) rotatably connected to the bottom of the storage tank (201). The bottom surface of the storage tank (201) has multiple outlet holes (3) arranged around its center, and each outlet hole (3) has a piston pushing mechanism on one side. The dosing tank (202) has multiple quantitative storage tanks corresponding to each outlet hole (3). The capacity of each quantitative storage tank (8) is different from that of the others. Each quantitative storage tank (8) is provided with a liquid discharge control valve (9) at the bottom. The bottom of the dosing tank (202) is provided with a dosing hole (10) corresponding to each quantitative storage tank (8). Each quantitative storage tank (8) is used to receive the agent from each liquid discharge hole (3) and, after being rotated to correspond to each piston pushing mechanism, the agent in the quantitative storage tank (8) is pushed out by the piston pushing mechanism.

2. The precision dosing device for defluoridation of semiconductor wastewater according to claim 1, characterized in that: The dosing device (2) is installed on the wastewater tank (1) via a support frame (11), and the support frame (11) is fixedly connected to the liquid storage tank (201).

3. The precision dosing device for defluoridation of semiconductor wastewater according to claim 1, characterized in that: A motor is installed in the center of the liquid storage tank (201), and the output shaft (12) of the motor is connected to the dosing tank (202). The dosing tank (202) has a connection hole (13) for connecting to the output shaft (12).

4. The precision dosing device for defluoridation of semiconductor wastewater according to claim 1, characterized in that: Each of the liquid outlet holes (3) is distributed at equal angles around the center of the liquid storage tank (201). The liquid storage tank (201) has a liquid storage cavity inside. Each of the liquid outlet holes (3) is connected to the liquid storage cavity. The top of the liquid storage tank (201) is provided with a dosing port (14).

5. The precision dosing device for defluoridation of semiconductor wastewater according to claim 1, characterized in that: The piston pushing mechanism includes a piston (5) that is driven to extend and retract by a cylinder (4). The liquid storage tank (201) has a through mounting hole (6) for mounting the piston pushing mechanism. The piston (5) is movably installed in the mounting hole (6). The cylinder (4) extends into the mounting hole (6) and is connected to the piston (5). The top of the cylinder (4) is connected to a positioning bracket (7) and is connected to the top surface of the liquid storage tank (201) through the positioning bracket (7).

6. The semiconductor wastewater defluoridation precision dosing device according to claim 1, characterized in that: The liquid storage tank (201) and the dosing tank (202) are connected in a sealed rotatable connection.

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