Automatic pH adjusting and efficient dosing device for clarification tank

Abstract

The invention relates to the technical field of water treatment, in particular to an automatic pH adjusting efficient dosing device for a clarification tank, which comprises a clarification tank main body, a coagulation zone, flocculation zones, a sedimentation zone, a neutralization zone, a pH meter, an adjusting assembly, a PLC control box and a stirring assembly, the coagulation zone is arranged on the inner side of the clarification tank main body, a first flocculation zone is arranged on one side of the coagulation zone, and a second flocculation zone is arranged on the other side of the flocculation zone; a second flocculation zone is arranged on one side of the first flocculation zone, a sedimentation zone is arranged on one side of the second flocculation zone, a first neutralization zone is arranged on one side of the sedimentation zone, a second neutralization zone is arranged on one side of the first neutralization zone, an adjusting assembly is arranged on the outer side of the HCl pipeline, a pH meter is arranged on one side of the first neutralization zone, and a PLC control box is arranged on the outer side of the clarification tank body. A stirring assembly is arranged on the inner side of the clarification tank main body; by means of an automatic dosing mode, water coming from the front of the clarification tank is automatically neutralized through an automatic program, manpower and material resources are reduced, and therefore the impurity removal effect of the clarification tank is effectively enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, in particular to a high-efficiency dosing device for automatically adjusting pH in a clarifier. Background Art

[0002] A clarifier is a common water treatment structure that separates suspended matter and colloidal particles from water through processes such as mixing, flocculation, and sedimentation, thereby removing impurities such as suspended matter, colloids, and some microorganisms in the water and clarifying the water.

[0003] After adding PAC, PAM, Na2CO3, and NaOH hardness removal agents to the coagulation and flocculation zones of the existing hardness removal system, the pH value in the water is relatively high. In addition, the on-site pipeline inlet valve is a manual valve and not a regulating valve. It is necessary to frequently adjust the opening of the dosing pump to adjust the HCl dosage, which wastes manpower and material resources and has a low degree of automation.

[0004] Therefore, in view of the low degree of automation of the existing hardness removal system and the inconvenience of adjusting the dosage, a high-efficiency dosing device with automatic pH adjustment in the clarifier can be designed. By means of automatic dosing, the water in front of the clarifier can be automatically neutralized through an automated program, reducing manpower and material resources, thereby effectively enhancing the impurity removal effect of the clarifier. Summary of the Invention

[0005] In order to overcome the problem that most hardness removal systems have a high pH in the water after adding hardness removal agents in the coagulation zone and flocculation zone, and the on-site pipeline inlet valve is a manual valve rather than a regulating valve, it is necessary to frequently adjust the opening of the dosing pump to adjust the HCl dosage, resulting in a low degree of automation.

[0006] The technical solution of the present invention is: a high-efficiency dosing device for automatically adjusting the pH of a clarifier, comprising a clarifier body, a coagulation zone, a first flocculation zone, a second flocculation zone, a sedimentation zone, a first neutralization zone, a second neutralization zone, a first dosing component, a second dosing component, a third dosing component, a sedimentation component, an inlet flow meter, an HCl pipeline, a pH meter, an adjustment component, a PLC control box and a stirring component. The coagulation zone is provided on the inner side of the clarifier body, the first flocculation zone is provided on one side of the coagulation zone, the second flocculation zone is provided on one side of the first flocculation zone, the sedimentation zone is provided on one side of the second flocculation zone, and the sedimentation zone is provided on the other side. A first neutralization zone is provided on one side of the tank, a second neutralization zone is provided on one side of the first neutralization zone, a first dosing assembly is provided on one side of the coagulation zone, a second dosing assembly is provided on one side of the first flocculation zone, a third dosing assembly is provided on one side of the second flocculation zone, a sedimentation assembly is provided on the inner side of the sedimentation zone, a water inlet flow meter is provided on one side of the first neutralization zone, an HCl pipeline is provided on one side of the first neutralization zone, an adjustment assembly is provided on the outside of the HCl pipeline, a pH meter is provided on one side of the first neutralization zone, a PLC control box is provided on the outside of the clarification tank body, and a stirring assembly is provided on the inside of the clarification tank body.

[0007] Preferably, the sewage is clarified step by step by setting up a clarifier body. The front water enters the coagulation zone through the clarifier body. A certain amount of PAC and NaOH reagents are added to the coagulation zone through the first dosing component. Subsequently, the water in the coagulation zone flows into the first flocculation zone. The second dosing component is used to add PAM reagent to the first flocculation zone. The water in the first flocculation zone flows into the second flocculation zone. The third dosing component is used to add Na2CO3 reagent to the second flocculation zone to remove the hardness of the water. The treated water flows from the second flocculation zone into the sedimentation zone. The water in the sedimentation zone is filtered by the sedimentation component, and the water quality enters the first neutralization zone. At the same time, the water inlet flow meter is used to monitor the water inlet flow in real time, and the water inlet flow signal is uploaded to the PLC control box. The PLC control box converts the amount of HCl added, and controls the HCl pipeline through the adjustment component to add the HCl agent to the first neutralization zone. At the same time, the stirring component is used to control the full mixing of the agent and the water in each area, and the pH meter reading is paid attention to at any time to control the pH value of the water outlet from the first neutralization zone between 6 and 9. The water in the first neutralization zone flows into the second neutralization zone and overflows to the next treatment unit, thereby realizing the automatic neutralization of the water in front of the clarifier through an automated program, reducing manpower and material resources, and enhancing the impurity removal effect of the clarifier.

[0008] Preferably, multiple groups of stirring components are provided, the stirring components are provided on the inner side of the coagulation zone, the stirring components are provided on the inner side of the first flocculation zone, the stirring components are provided on the inner side of the second flocculation zone, the stirring components are provided on the inner side of the first neutralization zone, and the stirring components are provided on the inner side of the second neutralization zone, and the PLC control box is electrically connected to the water inlet flow meter and the pH meter.

[0009] Preferably, the first dosing component includes a PAC dosing box, a PAC pipeline, a PAC dosing pump, a PAC solenoid valve, a PAC flowmeter, a NaOH dissolving box, a NaOH pipeline, a NaOH dosing pump, a NaOH solenoid valve and a NaOH flowmeter. A PAC dosing box is provided on the outside of the clarifier body, a PAC pipeline is provided on one side of the coagulation zone, the PAC pipeline and the PAC dosing box are interconnected, a PAC dosing pump is provided on the outside of the PAC pipeline, the PAC dosing pump is provided on the top of the PAC dosing box, and a PAC solenoid valve is provided on the other end of the PAC pipeline. A PAC flowmeter is provided on one side of the AC solenoid valve, and the PAC flowmeter is provided on one side of the PAC pipeline. A NaOH solution tank is provided on the outside of the clarifier body, and a NaOH pipeline is provided on the other side of the coagulation zone. The NaOH pipeline and the NaOH solution tank are interconnected. A NaOH dosing pump is provided on the outside of the NaOH pipeline, and the NaOH dosing pump is provided on the top of the NaOH solution tank. A NaOH solenoid valve is provided on the other end of the NaOH pipeline, and a NaOH flowmeter is provided on one side of the NaOH solenoid valve, and the NaOH flowmeter is provided on one side of the NaOH pipeline.

[0010] Preferably, the second dosing component includes a PAM solution tank, a PAM pipeline, a PAM dosing pump, a PAM solenoid valve and a PAM flowmeter. A PAM solution tank is arranged on the outside of the clarification tank body, a PAM pipeline is arranged on one side of the first flocculation zone, the PAM pipeline and the PAM solution tank are interconnected, a PAM dosing pump is arranged on the outside of the PAM pipeline, the PAM dosing pump is arranged on the top of the PAM solution tank, a PAM solenoid valve is arranged at the other end of the PAM pipeline, a PAM flowmeter is arranged on one side of the PAM solenoid valve, and the PAM flowmeter is arranged on one side of the PAM pipeline.

[0011] Preferably, the third dosing component includes a Na2CO3 dissolving tank, a Na2CO3 pipeline, a Na2CO3 dosing pump, a Na2CO3 solenoid valve and a Na2CO3 flowmeter. A Na2CO3 dissolving tank is arranged on the outside of the clarification tank body, a Na2CO3 pipeline is arranged on one side of the second flocculation zone, the Na2CO3 pipeline and the Na2CO3 dissolving tank are interconnected, a Na2CO3 dosing pump is arranged on the outside of the Na2CO3 pipeline, the Na2CO3 dosing pump is arranged on the top of the Na2CO3 dissolving tank, a Na2CO3 solenoid valve is arranged on the other end of the Na2CO3 pipeline, a Na2CO3 flowmeter is arranged on one side of the Na2CO3 solenoid valve, and the Na2CO3 flowmeter is arranged on one side of the Na2CO3 pipeline.

[0012] Preferably, the sedimentation assembly includes an inclined plate and an overflow port, an inclined plate is provided on the inner side of the sedimentation zone, an overflow port is provided on one side of the sedimentation zone, the overflow port is interconnected with the first neutralization zone, and the water inlet flow meter is provided inside the overflow port.

[0013] Preferably, the regulating component includes an HCl solvent box, an HCl dosing pump, an HCl solenoid valve and an HCl flowmeter. An HCl solvent box is arranged on the outside of the clarification tank body, the HCl pipeline and the HCl solvent box are interconnected, an HCl dosing pump is arranged on the outside of the HCl pipeline, the HCl dosing pump is arranged on the top of the HCl solvent box, an HCl solenoid valve is arranged on the other end of the HCl pipeline, the HCl solenoid valve and the PLC control box are electrically connected to each other, an HCl flowmeter is arranged on one side of the HCl solenoid valve, and the HCl flowmeter is arranged on one side of the HCl pipeline.

[0014] Preferably, the stirring assembly includes a fixed plate, a driving motor, a rotating shaft, a connecting screw, a sleeve, a stirring blade, a through hole, a fixed screw and a locking nut. A fixed plate is provided on the inner side of the clarifier body, a driving motor is provided on the top of the fixed plate, a rotating shaft is provided at the bottom end of the fixed plate, the rotating shaft is rotatably connected to the fixed plate, the output end of the driving motor is connected to the rotating shaft, a connecting screw is provided at the bottom end of the rotating shaft, a sleeve is provided on the outside of the connecting screw, the inner side of the sleeve is rotatably connected to the outer side of the connecting screw, a stirring blade is provided at the bottom end of the sleeve, a through hole is provided on one side of the sleeve and the connecting screw, a fixing screw is provided on the inside of the through hole, and locking nuts are threadedly connected at both ends of the fixing screw.

[0015] Beneficial effects of the present invention: During clarification treatment, the incoming water enters the coagulation zone through the main body of the clarifier, and a certain amount of PAC and NaOH reagents are added to the coagulation zone. Subsequently, the water in the coagulation zone flows into the first flocculation zone, and the PAM reagent is added to the first flocculation zone. The water in the first flocculation zone flows into the second flocculation zone, and the Na2CO3 reagent is added to the second flocculation zone to remove the hardness of the water. The treated water flows from the second flocculation zone into the sedimentation zone. After filtering the water in the sedimentation zone, the water quality enters the first neutralization zone. At the same time, the water inlet flow meter is used to monitor the water inlet flow in real time. The inlet flow signal is uploaded to the PLC control box, which converts the amount of HCl added, controls the HCl pipeline to add HCl to the first neutralization zone, and keeps an eye on the pH meter reading to control the pH value of the effluent from the first neutralization zone between 6 and 9. The water in the first neutralization zone flows into the second neutralization zone and overflows to the next treatment unit. This solves the problem that the inlet valves of the on-site pipelines of most hardness removal systems are manual valves and non-regulating valves, and the dosing pump opening needs to be frequently adjusted to adjust the HCl dosing amount, resulting in a low degree of automation, thereby enhancing the impurity removal effect of the clarifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of a high-efficiency dosing device for automatically adjusting pH in a clarifier according to the present invention; Figure 2Shown is a schematic diagram of the three-dimensional structure of a dosing component of a high-efficiency dosing device for automatically adjusting pH in a clarifier according to the present invention; Figure 3 Shown is a schematic diagram of the cross-sectional structure of a dosing component of a high-efficiency dosing device for automatically adjusting pH in a clarifier according to the present invention; Figure 4 Shown is a schematic diagram of the three-dimensional structure of the regulating component of a high-efficiency dosing device for automatically regulating pH in a clarifier according to the present invention; Figure 5 Shown is a schematic diagram of the first three-dimensional structure of a stirring assembly of a high-efficiency dosing device for automatically adjusting pH in a clarifier according to the present invention; Figure 6 Shown is a second three-dimensional structural schematic diagram of a stirring component of a high-efficiency dosing device for automatically adjusting the pH of a clarifier according to the present invention. 1. Clarification tank body; 2. Coagulation zone; 201. PAC dosing box; 202. PAC pipeline; 203. PAC dosing pump; 204. PAC solenoid valve; 205. PAC flowmeter; 206. NaOH dissolving box; 207. NaOH pipeline; 208. NaOH dosing pump; 209. NaOH solenoid valve; 210. NaOH flowmeter; 3. First flocculation zone; 301. PAM dissolving box; 302. PAM pipeline; 303. PAM dosing pump; 304. PAM solenoid valve; 305. PAM flowmeter; 4. Second flocculation zone; 401. Na2CO3 dissolving box; 402. Na2CO3 pipeline; 4 03. Na2CO3 dosing pump; 404. Na2CO3 solenoid valve; 405. Na2CO3 flowmeter; 5. Sedimentation zone; 501. Inclined plate; 502. Overflow port; 503. Water inlet flowmeter; 6. First neutralization zone; 601. HCl solution tank; 602. HCl pipeline; 603. pH meter; 604. HCl dosing pump; 605. HCl solenoid valve; 606. HCl flowmeter; 7. PLC control box; 8. Second neutralization zone; 901. Fixed plate; 902. Drive motor; 903. Rotating shaft; 904. Connecting screw; 905. Sleeve column; 906. Stirring blade; 907. Through hole; 908. Fixed screw; 909. Locking nut. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] Example 1 See also Figure 1 and Figure 4The present invention provides an embodiment: a high-efficiency dosing device for automatically adjusting the pH value of a clarifier, comprising a clarifier body 1, a coagulation zone 2, a first flocculation zone 3, a second flocculation zone 4, a sedimentation zone 5, a first neutralization zone 6, a second neutralization zone 8, a first dosing component, a second dosing component, a third dosing component, a sedimentation component, an inlet flow meter 503, an HCl pipeline 602, a pH meter 603, an adjustment component, a PLC control box 7 and a stirring component. The coagulation zone 2 is provided on the inner side of the clarifier body 1, the first flocculation zone 3 is provided on one side of the coagulation zone 2, the second flocculation zone 4 is provided on one side of the first flocculation zone 3, the sedimentation zone 5 is provided on one side of the second flocculation zone 4, the first neutralization zone 6 is provided on one side of the sedimentation zone 5, the second neutralization zone 8 is provided on one side of the first neutralization zone 6, the first dosing component is provided on one side of the coagulation zone 2, the first flocculation zone 3 is provided on one side, There is a second dosing component, a third dosing component is provided on one side of the second flocculation zone 4, a sedimentation component is provided on the inner side of the sedimentation zone 5, an inlet flow meter 503 is provided on one side of the first neutralization zone 6, an HCl pipeline 602 is provided on one side of the first neutralization zone 6, an adjustment component is provided on the outside of the HCl pipeline 602, a pH meter 603 is provided on one side of the first neutralization zone 6, a PLC control box 7 is provided on the outside of the clarification tank body 1, the PLC control box 7 is electrically connected to the inlet flow meter 503 and the pH meter 603, a stirring component is provided on the inside of the clarification tank body 1, and multiple groups of stirring components are provided. The stirring component is provided on the inner side of the coagulation zone 2, the stirring component is provided on the inner side of the first flocculation zone 3, the stirring component is provided on the inner side of the second flocculation zone 4, the stirring component is provided on the inner side of the first neutralization zone 6, and the stirring component is provided on the inner side of the second neutralization zone 8.

[0019] See also Figure 2 and Figure 3In this embodiment, the first dosing component includes a PAC dosing box 201, a PAC pipeline 202, a PAC dosing pump 203, a PAC solenoid valve 204, a PAC flowmeter 205, a NaOH solution box 206, a NaOH pipeline 207, a NaOH dosing pump 208, a NaOH solenoid valve 209 and a NaOH flowmeter 210. The PAC dosing box 201 is provided on the outside of the clarifier body 1, and the PAC pipeline 202 is provided on one side of the coagulation zone 2. The PAC pipeline 202 and the PAC dosing box 201 are connected to each other. The PAC pipeline A PAC dosing pump 203 is provided on the outside of the line 202, and the PAC dosing pump 203 is provided on the top of the PAC dosing box 201. A PAC solenoid valve 204 is provided on the other end of the PAC pipeline 202, and a PAC flow meter 205 is provided on one side of the PAC solenoid valve 204. The PAC flow meter 205 is provided on one side of the PAC pipeline 202. A NaOH solution box 206 is provided on the outside of the clarifier body 1, and a NaOH pipeline 207 is provided on the other side of the coagulation zone 2. The NaOH pipeline 207 and the NaOH solution box 206 are connected to each other. A NaOH dosing pump 208 is provided on the outside of the NaOH pipeline 207. The NaOH dosing pump 208 is provided on the top of the NaOH solution tank 206. A NaOH solenoid valve 209 is provided on the other end of the NaOH pipeline 207. A NaOH flow meter 210 is provided on one side of the NaOH solenoid valve 209. The NaOH flow meter 210 is provided on one side of the NaOH pipeline 207. The PAC agent is stored in the PAC dosing tank 201, and the PAC dosing pump 203 is started to control the PAC pipeline 202 to transport the PAC agent. The PAC agent is transported through the PAC dosing tank 201. AC pipeline 202 is transported to coagulation zone 2, and the amount of the agent is controlled by PAC solenoid valve 204. At the same time, the amount of the agent is displayed by PAC flow meter 205. NaOH agent is stored in NaOH dissolving tank 206. NaOH dosing pump 208 is started to control NaOH pipeline 207 to transport NaOH agent. NaOH agent is transported to coagulation zone 2 through NaOH pipeline 207. The amount of the agent is controlled by NaOH solenoid valve 209. At the same time, the amount of the agent is displayed by NaOH flow meter 210, and preliminary hardness removal treatment is performed on the water body. The second dosing component includes a PAM dissolving tank 301, a PAM pipeline 302, a PAM dosing pump 303, a PAM solenoid valve 304 and a PAM flowmeter 305. The PAM dissolving tank 301 is arranged on the outside of the clarification tank body 1, and a PAM pipeline 302 is arranged on one side of the first flocculation zone 3. The PAM pipeline 302 and the PAM dissolving tank 301 are connected to each other. A PAM dosing pump 303 is arranged on the outside of the PAM pipeline 302, and the PAM dosing pump 303 is arranged on the top of the PAM dissolving tank 301. A PAM solenoid valve 304 is arranged on the other end of the PAM pipeline 302. 4 is provided with a PAM flowmeter 305, which is provided on one side of the PAM pipeline 302. The PAM agent is stored in the PAM dissolving tank 301, the PAM dosing pump 303 is started to control the PAM pipeline 302 to transport the PAM agent, and the PAM agent is transported to the first flocculation zone 3 through the PAM pipeline 302. The PAM solenoid valve 304 is used to control the dosage. At the same time, the dosage is displayed by the PAM flowmeter 305 to further remove the hardness of the water body. The third dosing component includes a Na2CO3 dissolving tank 401, a Na2CO3 pipeline 402, and a Na2CO3 A dosing pump 403, a Na2CO3 solenoid valve 404 and a Na2CO3 flowmeter 405 are provided on the outside of the clarifier body 1. A Na2CO3 dissolving tank 401 is provided on one side of the second flocculation zone 4. The Na2CO3 pipeline 402 and the Na2CO3 dissolving tank 401 are interconnected. A Na2CO3 dosing pump 403 is provided on the outside of the Na2CO3 pipeline 402. The Na2CO3 dosing pump 403 is provided on the top of the Na2CO3 dissolving tank 401. The other end of the Na2CO3 pipeline 402 is provided with a Na2CO3 solenoid valve 404. A Na2CO3 flowmeter 405 is provided on one side of the O3 solenoid valve 404. The Na2CO3 flowmeter 405 is provided on one side of the Na2CO3 pipeline 402. The Na2CO3 agent is stored through the Na2CO3 dissolving box 401. The Na2CO3 dosing pump 403 is started to control the Na2CO3 pipeline 402 to transport the Na2CO3 agent. The Na2CO3 agent is transported to the second flocculation zone 4 through the Na2CO3 pipeline 402. The amount of the agent is controlled by the Na2CO3 solenoid valve 404. At the same time, the amount of the agent is displayed by the Na2CO3 flowmeter 405 to remove the hardness of the water.

[0020] See also Figure 4In this embodiment, the sedimentation component includes an inclined plate 501 and an overflow port 502. The inclined plate 501 is provided on the inner side of the sedimentation zone 5, and the overflow port 502 is provided on one side of the sedimentation zone 5. The overflow port 502 and the first neutralization zone 6 are interconnected. The water in the sedimentation zone 5 is filtered through the inclined plate 501, and the filtered water flows into the first neutralization zone 6 through the overflow port 502; the regulating component includes an HCl solution box 601, an HCl dosing pump 604, an HCl solenoid valve 605 and an HCl flowmeter 606. The HCl solution box 601 is provided on the outer side of the clarification tank body 1, and the HCl pipeline 602 is interconnected with the HCl solution box 601. The outer side of the HCl pipeline 602 is provided with a An HCl dosing pump 604 is provided, and the HCl dosing pump 604 is arranged on the top of the HCl dissolving tank 601. An HCl solenoid valve 605 is provided at the other end of the HCl pipeline 602. The HCl solenoid valve 605 is electrically connected to the PLC control box 7. An HCl flowmeter 606 is provided on one side of the HCl solenoid valve 605. The HCl flowmeter 606 is arranged on one side of the HCl pipeline 602. The HCl dissolving tank 601 is used to store HCl reagents. The HCl dosing pump 604 is started to control the HCl pipeline 602 to transport the HCl reagents, and the reagents are transported to the first neutralization zone 6. The HCl solenoid valve 605 is used to control the dosage. At the same time, the HCl flowmeter 606 displays the dosage, and the pH value of the water body is efficiently adjusted.

[0021] See also Figure 3 In this embodiment, the stirring assembly includes a fixed plate 901, a drive motor 902, a rotating shaft 903 and a stirring blade 906. A fixed plate 901 is provided on the inner side of the clarification tank body 1, and a drive motor 902 is provided on the top of the fixed plate 901. A rotating shaft 903 is provided at the bottom end of the fixed plate 901. The rotating shaft 903 is rotatably connected to the fixed plate 901, and the output end of the drive motor 902 is connected to the rotating shaft 903. A stirring blade 906 is provided at the bottom end of the rotating shaft 903. The position of the drive motor 902 is fixed by the fixed plate 901, and the driving motor 902 drives the rotating shaft 903 to rotate. The rotating shaft 903 drives the stirring blade 906 to rotate and stir the reagent and the water to fully mix.

[0022] During hard water removal treatment, incoming water enters the coagulation zone 2 through the clarifier main body 1, and the PAC dosing pump 203 and the NaOH dosing pump 208 are started to transport the reagents in the PAC dosing box 201 and the NaOH dissolving box 206 to the coagulation zone 2 through the PAC pipeline 202 and the NaOH pipeline 207. The amount of reagent added is controlled by the PAC solenoid valve 204 and the NaOH solenoid valve 209. At the same time, the amount of reagent added is displayed in real time by the PAC flow meter 205 and the NaOH flow meter 210. Subsequently, the water in the coagulation zone 2 flows into the first flocculation zone 3, and the PAM dosing pump 303 is started to control the PAM pipeline 302 to extract the agent in the PAM dissolving tank 301, and the PAM agent is added to the first flocculation zone 3. The amount of agent added is controlled by the PAM solenoid valve 304, and the amount of agent added is displayed in real time by the PAM flow meter 305. Then, the water in the first flocculation zone 3 flows into the second flocculation zone 4, and the Na2CO3 dosing pump 403 is started to control the Na2CO3 pipeline 402 to extract the reagent in the Na2CO3 dissolving tank 401, and the Na2CO3 reagent is added to the second flocculation zone 4. The amount of reagent added is controlled by the Na2CO3 solenoid valve 404, and the amount of reagent added is displayed in real time by the Na2CO3 flow meter 405; During sedimentation, the water in the second flocculation zone 4 flows into the sedimentation zone 5, is filtered by the inclined plate 501, and flows to the first neutralization zone 6 through the overflow port 502. The water flow rate is monitored by the water inlet flow meter 503, and the water flow rate signal is uploaded to the PLC control box 7; When adjusting the pH value, the HCl dosing pump 604 is started to control the HCl pipeline 602 to extract the HCl solution in the HCl solution box 601, and the HCl solution is added to the first neutralization zone 6. The HCl solenoid valve 605 is used to control the amount of solution added. At the same time, the HCl flow meter 606 displays the amount of solution added. The PLC control box 7 converts the amount of HCl added according to the water inlet flow signal and changes the size of the HCl solenoid valve 605 according to the signal transmitted by the HCl flow meter 606 to control the amount of solution added. The pH value of the water body is controlled between 6 and 9 by reading the pH meter 603. Subsequently, the water in the first neutralization zone 6 flows into the second neutralization zone 8 and overflows to the next treatment unit. In addition, while adding the medicine, the driving motor 902 on the fixed plate 901 is used to drive the rotating shaft 903 to rotate, and the rotating shaft 903 drives the stirring blade 906 to rotate synchronously, and the stirring blade 906 is used to accelerate the stirring of the medicine and the water to fully mix them.

[0023] Example 2 See also Figure 1 and Figure 4The present invention provides an embodiment: a high-efficiency dosing device for automatically adjusting the pH value of a clarifier, comprising a clarifier body 1, a coagulation zone 2, a first flocculation zone 3, a second flocculation zone 4, a sedimentation zone 5, a first neutralization zone 6, a second neutralization zone 8, a first dosing component, a second dosing component, a third dosing component, a sedimentation component, an inlet flow meter 503, an HCl pipeline 602, a pH meter 603, an adjustment component, a PLC control box 7 and a stirring component. The coagulation zone 2 is provided on the inner side of the clarifier body 1, the first flocculation zone 3 is provided on one side of the coagulation zone 2, the second flocculation zone 4 is provided on one side of the first flocculation zone 3, the sedimentation zone 5 is provided on one side of the second flocculation zone 4, the first neutralization zone 6 is provided on one side of the sedimentation zone 5, the second neutralization zone 8 is provided on one side of the first neutralization zone 6, the first dosing component is provided on one side of the coagulation zone 2, the first flocculation zone 3 is provided on one side, There is a second dosing component, a third dosing component is provided on one side of the second flocculation zone 4, a sedimentation component is provided on the inner side of the sedimentation zone 5, an inlet flow meter 503 is provided on one side of the first neutralization zone 6, an HCl pipeline 602 is provided on one side of the first neutralization zone 6, an adjustment component is provided on the outside of the HCl pipeline 602, a pH meter 603 is provided on one side of the first neutralization zone 6, a PLC control box 7 is provided on the outside of the clarification tank body 1, the PLC control box 7 is electrically connected to the inlet flow meter 503 and the pH meter 603, a stirring component is provided on the inside of the clarification tank body 1, and multiple groups of stirring components are provided. The stirring component is provided on the inner side of the coagulation zone 2, the stirring component is provided on the inner side of the first flocculation zone 3, the stirring component is provided on the inner side of the second flocculation zone 4, the stirring component is provided on the inner side of the first neutralization zone 6, and the stirring component is provided on the inner side of the second neutralization zone 8.

[0024] See also Figure 2 and Figure 3In this embodiment, the first dosing component includes a PAC dosing box 201, a PAC pipeline 202, a PAC dosing pump 203, a PAC solenoid valve 204, a PAC flowmeter 205, a NaOH solution box 206, a NaOH pipeline 207, a NaOH dosing pump 208, a NaOH solenoid valve 209 and a NaOH flowmeter 210. The PAC dosing box 201 is provided on the outside of the clarifier body 1, and the PAC pipeline 202 is provided on one side of the coagulation zone 2. The PAC pipeline 202 and the PAC dosing box 201 are connected to each other. The PAC pipeline A PAC dosing pump 203 is provided on the outside of the line 202, and the PAC dosing pump 203 is provided on the top of the PAC dosing box 201. A PAC solenoid valve 204 is provided on the other end of the PAC pipeline 202, and a PAC flow meter 205 is provided on one side of the PAC solenoid valve 204. The PAC flow meter 205 is provided on one side of the PAC pipeline 202. A NaOH solution box 206 is provided on the outside of the clarifier body 1, and a NaOH pipeline 207 is provided on the other side of the coagulation zone 2. The NaOH pipeline 207 and the NaOH solution box 206 are connected to each other. A NaOH dosing pump 208 is provided on the outside of the NaOH pipeline 207. The NaOH dosing pump 208 is provided on the top of the NaOH solution tank 206. A NaOH solenoid valve 209 is provided on the other end of the NaOH pipeline 207. A NaOH flow meter 210 is provided on one side of the NaOH solenoid valve 209. The NaOH flow meter 210 is provided on one side of the NaOH pipeline 207. The PAC agent is stored in the PAC dosing tank 201, and the PAC dosing pump 203 is started to control the PAC pipeline 202 to transport the PAC agent. The PAC agent is transported through the PAC dosing tank 201. AC pipeline 202 is transported to coagulation zone 2, and the amount of the agent is controlled by PAC solenoid valve 204. At the same time, the amount of the agent is displayed by PAC flow meter 205. NaOH agent is stored in NaOH dissolving tank 206. NaOH dosing pump 208 is started to control NaOH pipeline 207 to transport NaOH agent. NaOH agent is transported to coagulation zone 2 through NaOH pipeline 207. The amount of the agent is controlled by NaOH solenoid valve 209. At the same time, the amount of the agent is displayed by NaOH flow meter 210, and preliminary hardness removal treatment is performed on the water body. The second dosing component includes a PAM dissolving tank 301, a PAM pipeline 302, a PAM dosing pump 303, a PAM solenoid valve 304 and a PAM flowmeter 305. The PAM dissolving tank 301 is arranged on the outside of the clarification tank body 1, and a PAM pipeline 302 is arranged on one side of the first flocculation zone 3. The PAM pipeline 302 and the PAM dissolving tank 301 are connected to each other. A PAM dosing pump 303 is arranged on the outside of the PAM pipeline 302, and the PAM dosing pump 303 is arranged on the top of the PAM dissolving tank 301. A PAM solenoid valve 304 is arranged on the other end of the PAM pipeline 302. 4 is provided with a PAM flowmeter 305, which is provided on one side of the PAM pipeline 302. The PAM agent is stored in the PAM dissolving tank 301, the PAM dosing pump 303 is started to control the PAM pipeline 302 to transport the PAM agent, and the PAM agent is transported to the first flocculation zone 3 through the PAM pipeline 302. The PAM solenoid valve 304 is used to control the dosage. At the same time, the dosage is displayed by the PAM flowmeter 305 to further remove the hardness of the water body. The third dosing component includes a Na2CO3 dissolving tank 401, a Na2CO3 pipeline 402, and a Na2CO3 A dosing pump 403, a Na2CO3 solenoid valve 404 and a Na2CO3 flowmeter 405 are provided on the outside of the clarifier body 1. A Na2CO3 dissolving tank 401 is provided on one side of the second flocculation zone 4. The Na2CO3 pipeline 402 and the Na2CO3 dissolving tank 401 are interconnected. A Na2CO3 dosing pump 403 is provided on the outside of the Na2CO3 pipeline 402. The Na2CO3 dosing pump 403 is provided on the top of the Na2CO3 dissolving tank 401. The other end of the Na2CO3 pipeline 402 is provided with a Na2CO3 solenoid valve 404. A Na2CO3 flowmeter 405 is provided on one side of the O3 solenoid valve 404. The Na2CO3 flowmeter 405 is provided on one side of the Na2CO3 pipeline 402. The Na2CO3 agent is stored through the Na2CO3 dissolving box 401. The Na2CO3 dosing pump 403 is started to control the Na2CO3 pipeline 402 to transport the Na2CO3 agent. The Na2CO3 agent is transported to the second flocculation zone 4 through the Na2CO3 pipeline 402. The amount of the agent is controlled by the Na2CO3 solenoid valve 404. At the same time, the amount of the agent is displayed by the Na2CO3 flowmeter 405 to remove the hardness of the water.

[0025] See also Figure 4In this embodiment, the sedimentation component includes an inclined plate 501 and an overflow port 502. The inclined plate 501 is provided on the inner side of the sedimentation zone 5, and the overflow port 502 is provided on one side of the sedimentation zone 5. The overflow port 502 and the first neutralization zone 6 are interconnected. The water in the sedimentation zone 5 is filtered through the inclined plate 501, and the filtered water flows into the first neutralization zone 6 through the overflow port 502; the regulating component includes an HCl solution box 601, an HCl dosing pump 604, an HCl solenoid valve 605 and an HCl flowmeter 606. The HCl solution box 601 is provided on the outer side of the clarification tank body 1, and the HCl pipeline 602 is interconnected with the HCl solution box 601. The outer side of the HCl pipeline 602 is provided with a An HCl dosing pump 604 is provided, and the HCl dosing pump 604 is arranged on the top of the HCl dissolving tank 601. An HCl solenoid valve 605 is provided at the other end of the HCl pipeline 602. The HCl solenoid valve 605 is electrically connected to the PLC control box 7. An HCl flowmeter 606 is provided on one side of the HCl solenoid valve 605. The HCl flowmeter 606 is arranged on one side of the HCl pipeline 602. The HCl dissolving tank 601 is used to store HCl reagents. The HCl dosing pump 604 is started to control the HCl pipeline 602 to transport the HCl reagents, and the reagents are transported to the first neutralization zone 6. The HCl solenoid valve 605 is used to control the dosage. At the same time, the HCl flowmeter 606 displays the dosage, and the pH value of the water body is efficiently adjusted.

[0026] See also Figure 5 and Figure 6In this embodiment, the stirring assembly includes a fixed plate 901, a drive motor 902, a rotating shaft 903, a connecting screw 904, a sleeve 905, a stirring blade 906, a through hole 907, a fixed screw 908 and a locking nut 909. A fixed plate 901 is provided on the inner side of the clarification tank body 1, and a drive motor 902 is provided on the top of the fixed plate 901. A rotating shaft 903 is provided at the bottom end of the fixed plate 901. The rotating shaft 903 is rotatably connected to the fixed plate 901. The output end of the drive motor 902 is connected to the rotating shaft 903. The bottom end of the rotating shaft 903 is provided with a connecting screw 904. A sleeve 905 is provided on the outside of the connecting screw 904. The inner side of the sleeve 905 is rotatably connected to the outer side of the connecting screw 904. The bottom end of the sleeve 905 is provided with a stirring A through hole 907 is provided on one side of the blade 906, the sleeve 905 and the connecting screw 904, and a fixing screw 908 is provided on the inner side of the through hole 907. The two ends of the fixing screw 908 are threadedly connected with locking nuts 909. The position of the rotating shaft 903 is fixed by the fixing plate 901, and the sleeve 905 is screwed into the connecting screw 904 to facilitate the disassembly and assembly of the stirring blade 906. After the stirring blade 906 is fixed to one end of the connecting screw 904, the through hole 907 is passed through and corresponds to it. The fixing screw 908 is inserted into the through hole 907, and then the locking nuts 909 are screwed into the two ends of the fixing screw 908 to fix the stirring blade 906 to the bottom end of the rotating shaft 903. The driving motor 902 is used to drive the rotating shaft 903 to rotate, and the rotating shaft 903 drives the stirring blade 906 to rotate and stir the medicine and water.

[0027] During hard water removal treatment, incoming water enters the coagulation zone 2 through the clarifier main body 1, and the PAC dosing pump 203 and the NaOH dosing pump 208 are started to transport the reagents in the PAC dosing box 201 and the NaOH dissolving box 206 to the coagulation zone 2 through the PAC pipeline 202 and the NaOH pipeline 207. The amount of reagent added is controlled by the PAC solenoid valve 204 and the NaOH solenoid valve 209. At the same time, the amount of reagent added is displayed in real time by the PAC flow meter 205 and the NaOH flow meter 210. Subsequently, the water in the coagulation zone 2 flows into the first flocculation zone 3, and the PAM dosing pump 303 is started to control the PAM pipeline 302 to extract the agent in the PAM dissolving tank 301, and the PAM agent is added to the first flocculation zone 3. The amount of agent added is controlled by the PAM solenoid valve 304, and the amount of agent added is displayed in real time by the PAM flow meter 305. Then, the water in the first flocculation zone 3 flows into the second flocculation zone 4, and the Na2CO3 dosing pump 403 is started to control the Na2CO3 pipeline 402 to extract the reagent in the Na2CO3 dissolving tank 401, and the Na2CO3 reagent is added to the second flocculation zone 4. The amount of reagent added is controlled by the Na2CO3 solenoid valve 404, and the amount of reagent added is displayed in real time by the Na2CO3 flow meter 405; During sedimentation, the water in the second flocculation zone 4 flows into the sedimentation zone 5, is filtered by the inclined plate 501, and flows to the first neutralization zone 6 through the overflow port 502. The water flow rate is monitored by the water inlet flow meter 503, and the water flow rate signal is uploaded to the PLC control box 7; When adjusting the pH value, the HCl dosing pump 604 is started to control the HCl pipeline 602 to extract the HCl solution in the HCl solution box 601, and the HCl solution is added to the first neutralization zone 6. The HCl solenoid valve 605 is used to control the amount of solution added. At the same time, the HCl flow meter 606 displays the amount of solution added. The PLC control box 7 converts the amount of HCl added according to the water inlet flow signal and changes the size of the HCl solenoid valve 605 according to the signal transmitted by the HCl flow meter 606 to control the amount of solution added. The pH value of the water body is controlled between 6 and 9 by reading the pH meter 603. Subsequently, the water in the first neutralization zone 6 flows into the second neutralization zone 8 and overflows to the next treatment unit. In addition, while adding the medicine, the driving motor 902 on the fixed plate 901 drives the rotating shaft 903 to rotate, and the rotating shaft 903 drives the stirring blade 906 to rotate synchronously, and the stirring blade 906 is used to accelerate the stirring of the medicine and the water to fully mix them; In this embodiment, the sleeve 905 is threaded into the connecting screw 904, and the stirring blade 906 is fixed to one end of the connecting screw 904. The through hole 907 is passed through and corresponds to it, and the fixing screw 908 is inserted into the through hole 907. The locking nut 909 is then screwed into both ends of the fixing screw 908, so that the stirring blade 906 is fixed to the bottom end of the rotating shaft 903, thereby making it convenient to disassemble and assemble the stirring blade 906, and convenient to clean and replace the stirring blade 906.

[0028] Through the above steps, the sewage is clarified step by step by setting the clarifier body 1. The front water enters the coagulation zone 2 through the clarifier body 1. A certain amount of PAC and NaOH reagents are added to the coagulation zone 2 through the first dosing component. Subsequently, the water in the coagulation zone 2 flows into the first flocculation zone 3. The second dosing component is used to add the PAM reagent to the first flocculation zone 3. The water in the first flocculation zone 3 flows into the second flocculation zone 4. The third dosing component is used to add the Na2CO3 reagent to the second flocculation zone 4 to remove the hardness of the water. The treated water flows from the second flocculation zone 4 into the sedimentation zone 5. The sedimentation component is used to filter the water in the sedimentation zone 5. The solid enters the first neutralization zone 6. At the same time, the water inlet flow meter 503 is used to monitor the water inlet flow in real time, and the water inlet flow signal is uploaded to the PLC control box 7. The PLC control box 7 converts the amount of HCl to be added, and controls the HCl pipeline 602 through the adjustment component to add the HCl agent to the first neutralization zone 6. At the same time, the stirring component is used to control the full mixing of the agent and the water in each area, and the pH meter 603 reading is paid attention to at any time to control the pH value of the water outlet from the first neutralization zone 6 between 6 and 9. The water in the first neutralization zone 6 flows into the second neutralization zone 8 and overflows to the next treatment unit, thereby automatically neutralizing the water in front of the clarifier through an automated program, reducing manpower and material resources.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A high-efficiency dosing device for automatically adjusting pH in a clarifier, comprising a clarifier body (1), a coagulation zone (2), a first flocculation zone (3), a second flocculation zone (4), a sedimentation zone (5), a first neutralization zone (6), and a second neutralization zone (8), characterized in that: The invention also includes a first dosing component, a second dosing component, a third dosing component, a sedimentation component, a water inlet flow meter (503), an HCl pipeline (602), a pH meter (603), a regulating component, a PLC control box (7) and a stirring component. A coagulation zone (2) is provided on the inner side of the clarification tank body (1), a first flocculation zone (3) is provided on one side of the coagulation zone (2), a second flocculation zone (4) is provided on one side of the first flocculation zone (3), a sedimentation zone (5) is provided on one side of the second flocculation zone (4), a first neutralization zone (6) is provided on one side of the sedimentation zone (5), a second neutralization zone (8) is provided on one side of the first neutralization zone (6), and a coagulation zone (2) is provided on the inner side of the clarification tank body (1). A first dosing assembly is provided on one side of the zone (2), a second dosing assembly is provided on one side of the first flocculation zone (3), a third dosing assembly is provided on one side of the second flocculation zone (4), a sedimentation assembly is provided on the inner side of the sedimentation zone (5), a water inlet flow meter (503) is provided on one side of the first neutralization zone (6), an HCl pipeline (602) is provided on one side of the first neutralization zone (6), an adjustment assembly is provided on the outer side of the HCl pipeline (602), a pH meter (603) is provided on one side of the first neutralization zone (6), a PLC control box (7) is provided on the outer side of the clarification tank body (1), and a stirring assembly is provided on the inner side of the clarification tank body (1).

2. The high-efficiency dosing device for automatically adjusting pH in a clarifier according to claim 1, characterized in that: Multiple groups of stirring components are provided. The stirring components are provided inside the coagulation zone (2), the stirring components are provided inside the first flocculation zone (3), the stirring components are provided inside the second flocculation zone (4), the stirring components are provided inside the first neutralization zone (6), and the stirring components are provided inside the second neutralization zone (8). The PLC control box (7) is electrically connected to the water inlet flow meter (503) and the pH meter (603).

3. The high-efficiency dosing device for automatically adjusting pH in a clarifier according to claim 1, characterized in that: The first dosing component comprises a PAC dosing box (201), a PAC pipeline (202), a PAC dosing pump (203), a PAC solenoid valve (204), a PAC flow meter (205), a NaOH dissolving box (206), a NaOH pipeline (207), a NaOH dosing pump (208), a NaOH solenoid valve (209) and a NaOH flow meter (210). The PAC dosing box (201) is arranged on the outside of the clarifier body (1), the PAC pipeline (202) is arranged on one side of the coagulation zone (2), the PAC pipeline (202) and the PAC dosing box (201) are interconnected, the PAC dosing pump (203) is arranged on the outside of the PAC pipeline (202), the PAC dosing pump (203) is arranged on the top of the PAC dosing box (201), and the other end of the PAC pipeline (202) is provided with a PAC solenoid valve (204). ), a PAC flowmeter (205) is provided on one side of the PAC solenoid valve (204), and the PAC flowmeter (205) is provided on one side of the PAC pipeline (202); a NaOH solution tank (206) is provided on the outside of the clarifier body (1); a NaOH pipeline (207) is provided on the other side of the coagulation zone (2); the NaOH pipeline (207) and the NaOH solution tank (206) are interconnected; a NaOH dosing pump (208) is provided on the outside of the NaOH pipeline (207), and the NaOH dosing pump (208) is provided on the top of the NaOH solution tank (206); a NaOH solenoid valve (209) is provided on the other end of the NaOH pipeline (207); a NaOH flowmeter (210) is provided on one side of the NaOH solenoid valve (209), and the NaOH flowmeter (210) is provided on one side of the NaOH pipeline (207).

4. The high-efficiency dosing device for automatically adjusting pH in a clarifier according to claim 1, characterized in that: The second dosing component includes a PAM dissolving tank (301), a PAM pipeline (302), a PAM dosing pump (303), a PAM solenoid valve (304) and a PAM flowmeter (305). The PAM dissolving tank (301) is arranged outside the clarifier body (1), the PAM pipeline (302) is arranged on one side of the first flocculation zone (3), the PAM pipeline (302) and the PAM dissolving tank (301) are interconnected, the PAM dosing pump (303) is arranged outside the PAM pipeline (302), the PAM dosing pump (303) is arranged on the top of the PAM dissolving tank (301), the PAM solenoid valve (304) is arranged at the other end of the PAM pipeline (302), the PAM flowmeter (305) is arranged on one side of the PAM solenoid valve (304), and the PAM flowmeter (305) is arranged on one side of the PAM pipeline (302).

5. The high-efficiency dosing device for automatically adjusting pH in a clarifier according to claim 1, characterized in that: The third dosing component includes a Na2CO3 dissolving tank (401), a Na2CO3 pipeline (402), a Na2CO3 dosing pump (403), a Na2CO3 solenoid valve (404) and a Na2CO3 flow meter (405). The Na2CO3 dissolving tank (401) is provided on the outside of the clarifier body (1), and the Na2CO3 pipeline (402) is provided on one side of the second flocculation zone (4). The Na2CO3 pipeline (402) and the Na2CO3 dissolving tank (401) are interconnected. A Na2CO3 dosing pump (403) is provided on the outside of the Na2CO3 pipeline (402), and the Na2CO3 dosing pump (403) is provided on the top of the Na2CO3 dissolving tank (401). A Na2CO3 solenoid valve (404) is provided on the other end of the Na2CO3 pipeline (402), and a Na2CO3 flow meter (405) is provided on one side of the Na2CO3 solenoid valve (404). The Na2CO3 flow meter (405) is provided on one side of the Na2CO3 pipeline (402).

6. The high-efficiency dosing device for automatically adjusting pH in a clarifier according to claim 1, characterized in that: The sedimentation assembly comprises an inclined plate (501) and an overflow port (502). The inclined plate (501) is provided on the inner side of the sedimentation zone (5). The overflow port (502) is provided on one side of the sedimentation zone (5). The overflow port (502) and the first neutralization zone (6) are interconnected. The water inlet flow meter (503) is provided inside the overflow port (502).

7. The high-efficiency dosing device for automatically adjusting pH in a clarifier according to claim 1, characterized in that: The regulating component comprises an HCl solution tank (601), an HCl dosing pump (604), an HCl solenoid valve (605) and an HCl flow meter (606); an HCl solution tank (601) is arranged on the outside of the clarifier body (1); an HCl pipeline (602) and the HCl solution tank (601) are interconnected; an HCl dosing pump (604) is arranged on the outside of the HCl pipeline (602); the HCl dosing pump (604) is arranged on the top of the HCl solution tank (601); an HCl solenoid valve (605) is arranged at the other end of the HCl pipeline (602); the HCl solenoid valve (605) is electrically connected to the PLC control box (7); an HCl flow meter (606) is arranged on one side of the HCl solenoid valve (605); and the HCl flow meter (606) is arranged on one side of the HCl pipeline (602).

8. The high-efficiency dosing device for automatically adjusting pH in a clarifier according to claim 1, characterized in that: The stirring assembly includes a fixed plate (901), a driving motor (902), a rotating shaft (903), a connecting screw (904), a sleeve (905), a stirring blade (906), a through hole (907), a fixed screw (908) and a locking nut (909). The fixed plate (901) is provided on the inner side of the clarifier body (1), the driving motor (902) is provided on the top of the fixed plate (901), and the rotating shaft (903) is provided on the bottom of the fixed plate (901). The rotating shaft (903) is rotatably connected to the fixed plate (901), and the output of the driving motor (902) is The outlet end is connected to the rotating shaft (903), the bottom end of the rotating shaft (903) is provided with a connecting screw (904), the outer side of the connecting screw (904) is provided with a sleeve column (905), the inner side of the sleeve column (905) is threadedly connected to the outer side of the connecting screw (904), the bottom end of the sleeve column (905) is provided with a stirring blade (906), one side of the sleeve column (905) and the connecting screw (904) is provided with a through hole (907), the inner side of the through hole (907) is provided with a fixing screw (908), and both ends of the fixing screw (908) are threadedly connected to locking nuts (909).

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