Automatic dosing device for chemical wastewater treatment
Patent Information
- Application Number
- CN202522555566.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-12-02
AI Technical Summary
[0003]本实用新型的目的在于提供化工废水处理用自动加药装置，通过设置加药罐、转轴一、电机、计量泵、电磁阀、转轴二、盖板、集药斗、清洗组件，解决了化工废水处理的药剂添加时缺少预混效果、药剂集中进入废水中导致分散过慢、以及加药装置内残存药剂影响后续使用的问题
本实用新型通过设置加药罐、转轴一、电机、计量泵、电磁阀，解决了化工废水处理的药剂添加时缺少预混效果的问题；采用各种计量泵输入不同所需的药剂，定量添加进入加药罐内，随后利用电机工作驱动转轴一旋转，此时电磁阀关闭，转轴一连带搅拌桨一旋转，对加药罐内的药剂进行搅拌预混，使其充分混合后，再打开电磁阀使混合后的药剂从出料管排出至废水中，此过程中根据流量计的读数选择电磁阀的开启大小，实现定量均匀加药。
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Figure CN224798567U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of chemical wastewater treatment technology, and in particular relates to an automatic dosing device for chemical wastewater treatment. Background Technology
[0002] Pure water undergoes changes in its original physical or chemical properties after use, becoming wastewater containing various impurities. Chemical wastewater includes process wastewater, cooling water, exhaust gas scrubbing water, and equipment and site washing water discharged during chemical production. If this wastewater is discharged without treatment, it will cause varying degrees of pollution to water bodies, thereby endangering human health and affecting industrial and agricultural production. After chemical wastewater is generated, different types of chemicals are needed for treatment depending on the type. These chemicals usually need to be added in precise quantities, ideally with automatic dosing. However, the following drawbacks still exist in the actual dosing process: Firstly, in conventional chemical wastewater treatment, metering pumps are usually used to control the dosage. However, when multiple agents are needed, multiple metering pumps are required to input the agents. Since these agents are directly introduced into the wastewater, they cannot be pre-mixed, which increases the subsequent treatment time. Secondly, the chemicals are usually concentrated in the wastewater and cannot disperse quickly. In addition, some chemicals, such as flocculants, need to disperse in the wastewater quickly, which makes the wastewater treatment process too slow. Finally, after adding chemicals to the dosing device, residues may remain. These residues may result in insufficient dosage or interference with subsequent additions (e.g., adding different types of chemicals). Therefore, these residues should be removed. Utility Model Content
[0003] The purpose of this utility model is to provide an automatic dosing device for chemical wastewater treatment. By setting up a dosing tank, a rotating shaft one, a motor, a metering pump, a solenoid valve, a rotating shaft two, a cover plate, a collection hopper, and a cleaning component, it solves the problems of lack of premixing effect when adding chemicals for chemical wastewater treatment, slow dispersion caused by concentrated chemicals entering the wastewater, and the impact of residual chemicals in the dosing device on subsequent use.
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to an automatic dosing device for chemical wastewater treatment, comprising a dosing tank, a cleaning assembly, a cover plate, a first rotating shaft, a second rotating shaft, and a collection hopper. The dosing tank is located above the cover plate, and a motor is fixed to the top of the dosing tank. The output shaft of the motor extends into the dosing tank and is connected to the first rotating shaft. A stirring paddle is fixed to the outer periphery of the lower part of the first rotating shaft inside the dosing tank. The second rotating shaft is rotatably connected through the cover plate below the first rotating shaft, and a stirring paddle is fixed to the lower part of the second rotating shaft. A collection hopper is located below the cover plate outside the second rotating shaft. A cleaning assembly is provided above the dosing tank. The cleaning assembly includes an outer ring pipe and an inner ring pipe located at the top of the dosing tank. Spray nozzles arranged in a ring array are fixed on the outer periphery of both the inner ring pipe and the outer ring pipe.
[0005] Furthermore, the lower part of the dosing tank has a cone-shaped structure, and a discharge pipe is fixedly connected to the bottom of the dosing tank; a solenoid valve is fixed to the upper part of the discharge pipe, a flow meter is fixed to the lower part of the discharge pipe, and the bottom end of the discharge pipe passes through the cover plate and extends into the collection hopper; the lower part of the dosing tank is fixed with inclined support legs arranged in a ring array, and the bottom end of the support legs is fixed to the upper end of the cover plate.
[0006] Furthermore, the upper end of the second rotating shaft extends beyond the upper end of the cover plate, and a coupling is connected between the bottom end of the first rotating shaft and the upper end of the second rotating shaft for transmission.
[0007] Furthermore, a metering pump arranged in a linear array is fixed above one end of the top surface of the cover plate, and a medicine tube is fixed through the outlet end of the metering pump, with the end of the medicine tube away from the metering pump being connected through to the upper part of the dosing tank.
[0008] Furthermore, the upper end of the medicine collecting hopper is fixed with connecting rods arranged in a ring array, and the upper ends of all connecting rods are fixed to the bottom surface of the cover plate. The stirring paddle at the lower part of the rotating shaft is located below the medicine collecting hopper.
[0009] Furthermore, the inner ring pipe is located inside the outer ring pipe, and a connecting pipe is fixedly connected between the inner ring pipe and the outer ring pipe. A vertical water pipe is fixedly connected to the upper part of the periphery of the outer ring pipe.
[0010] Furthermore, the nozzle at the lower part of the outer ring pipe penetrates the top of the dosing tank and is inclined towards the inner wall of the dosing tank, while the nozzle at the lower part of the inner ring pipe penetrates the top of the dosing tank and is inclined towards the direction of the rotating shaft.
[0011] This utility model has the following beneficial effects: This invention solves the problem of insufficient premixing effect when adding chemicals for chemical wastewater treatment by setting up a dosing tank, a rotating shaft, a motor, a metering pump, and a solenoid valve. Various metering pumps are used to input different required chemicals, which are quantitatively added into the dosing tank. The motor then drives the rotating shaft to rotate, while the solenoid valve is closed. The rotating shaft, along with the stirring paddle, rotates, stirring and premixing the chemicals in the dosing tank. After thorough mixing, the solenoid valve is opened, allowing the mixed chemicals to be discharged into the wastewater through the outlet pipe. During this process, the opening size of the solenoid valve is selected based on the flow meter reading, achieving quantitative and uniform dosing.
[0012] This invention solves the problem of slow dispersion of chemicals caused by concentrated entry into wastewater by setting up a second rotating shaft, a cover plate, and a collection hopper. The mixed chemicals are discharged from the discharge pipe, pass through the cover plate, and fall into the collection hopper. They then flow into the wastewater along the inner wall of the collection hopper. At this time, the chemicals fall onto the circumference of the second rotating shaft. The rotation of the second rotating shaft drives the rotation of the second stirring paddle, which quickly disperses and mixes the wastewater and chemicals in the area around the second rotating shaft, thus accelerating the treatment efficiency.
[0013] This invention solves the problem of residual chemicals in the dosing device affecting subsequent use after the addition of chemicals by setting up a cleaning component. After the dosing is completed, cleaning water is introduced from the water pipe into the outer and inner ring pipes, and then sprayed onto the inner wall of the dosing tank and the rotating shaft to clean the areas where there may be residual chemicals. Firstly, this avoids waste of chemicals and reduces residues. Secondly, it will not affect the subsequent addition and use of other chemicals and will not cause any impact. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0015] Figure 1 A three-dimensional view of an automatic dosing device for chemical wastewater treatment; Figure 2 This is a structural diagram of the cover plate after partial cross-section; Figure 3 for Figure 1 A bottom view; Figure 4 This is a cross-sectional view of the dosing tank; Figure 5 This is a structural diagram of the cleaning component.
[0016] Figure label: 1. Dosing tank; 101. Support leg; 102. Motor; 103. Discharge pipe; 1031. Solenoid valve; 1032. Flow meter; 2. Cleaning assembly; 201. Outer ring pipe; 202. Inner ring pipe; 203. Nozzle; 204. Connecting pipe; 205. Water pipe; 3. Cover plate; 301. Metering pump; 302. Medicine pipe; 4. Shaft 1; 401. Agitator 1; 402. Coupling; 5. Shaft 2; 501. Agitator 2; 6. Medicine collection hopper; 601. Connecting rod. Detailed Implementation
[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0018] Please see Figure 1-5 As shown, this utility model is an automatic dosing device for chemical wastewater treatment, including a dosing tank 1, a cleaning assembly 2, a cover plate 3, a first rotating shaft 4, a second rotating shaft 5, and a collection hopper 6. The dosing tank 1 is arranged above the cover plate 3. A motor 102 is fixed to the top of the dosing tank 1, and the output shaft of the motor 102 extends into the dosing tank 1 and is connected to the first rotating shaft 4. An agitator 401 is fixed in the outer peripheral area of the lower part of the dosing tank 1. The second rotating shaft 5 is rotatably connected through the cover plate 3 below the first rotating shaft 4. An agitator 501 is fixed at the lower part of the second rotating shaft 5. The collection hopper 6 is arranged below the cover plate 3 outside the second rotating shaft 5. First, the dosing tank 1 serves as a transfer point for adding wastewater treatment agents, where all the required agents are added. Then, the motor 102 drives the rotating shaft 4 to rotate, which in turn drives the agitator 401 to rotate, stirring and premixing the agents in the dosing tank 1. The mixed agents are discharged from the discharge pipe 103, pass through the cover plate 3, and fall into the collection hopper 6, flowing into the wastewater along the inner wall of the collection hopper 6. At this time, the agents fall around the rotating shaft 5. The rotation of the rotating shaft 5 drives the rotation of the agitator 501, which quickly disperses and mixes the wastewater and agents in the area around the rotating shaft 5, thus accelerating the treatment efficiency. A cleaning assembly 2 is provided above the dosing tank 1. The cleaning assembly 2 includes an outer ring pipe 201 and an inner ring pipe 202 located at the top of the dosing tank 1. The outer periphery of the inner ring pipe 202 and the outer ring pipe 201 are fixed with nozzles 203 arranged in a ring array. The inner ring pipe 202 is located inside the outer ring pipe 201. A connecting pipe 204 is fixed through the inner ring pipe 202 and the outer ring pipe 201. A vertical water pipe 205 is fixed through the upper part of the periphery of the outer ring pipe 201. After the dosing is completed, the cleaning water is input from the water pipe 205, and through the cooperation of the connecting pipe 204, the cleaning water enters the outer ring pipe 201 and the inner ring pipe 202, and then sprays out from the nozzle 203 for cleaning residual chemicals. The nozzle 203 at the bottom of the outer ring pipe 201 penetrates the top of the dosing tank 1 and is inclined toward the inner wall of the dosing tank 1; the nozzle 203 at the bottom of the inner ring pipe 202 penetrates the top of the dosing tank 1 and is inclined toward the direction of the rotating shaft 4. According to the design of nozzle 203, cleaning water is sprayed onto the inner wall of dosing tank 1, rotating shaft 4, and stirring paddle 401 to clean the areas where there may be residual chemicals. Firstly, this avoids waste of chemicals and reduces residue. Secondly, it will not affect the subsequent addition and use of other chemicals and will not have any impact.
[0019] The lower part of the dosing tank 1 has a cone-shaped structure, and a discharge pipe 103 is fixedly connected to the bottom of the dosing tank 1; a solenoid valve 1031 is fixed to the upper part of the discharge pipe 103, a flow meter 1032 is fixed to the lower part of the discharge pipe 103, and the bottom end of the discharge pipe 103 passes through the cover plate 3 and extends into the collection hopper 6; the lower part of the dosing tank 1 is fixed with inclined support legs 101 arranged in a ring array, and the bottom end of the support legs 101 is fixed to the upper end of the cover plate 3; The cone-shaped structure makes it easier to discharge the medicine and prevents accumulation. During the discharge of the medicine from the discharge pipe 103, the opening size of the solenoid valve 1031 is selected according to the reading of the flow meter 1032 to achieve quantitative and uniform dosing. The dosing tank 1 is fixed to the cover plate 3 by the support leg 101.
[0020] The upper end of the second shaft 5 extends out of the upper end of the cover plate 3, and a coupling 402 is connected between the bottom end of the first shaft 4 and the upper end of the second shaft 5. The bottom of the first shaft 4 extends out of the dosing tank 1 and is connected to the second shaft 5 with the coupling 402, so that the first shaft 4 and the second shaft 5 can rotate synchronously. At the same time, the driving source can be reduced, which saves more cost and energy consumption.
[0021] A metering pump 301 with a linear array is fixed above one end of the top surface of the cover plate 3, and a medicine tube 302 is fixed through the outlet end of the metering pump 301, and the end of the medicine tube 302 away from the metering pump 301 is connected through the upper part of the dosing tank 1. Various metering pumps 301 are used to input different required reagents and extract different reagents, which are discharged from the reagent pipe 302 into the dosing tank 1, so that the reagents are added into the dosing tank 1 in a quantitative manner.
[0022] The upper end of the medicine collection hopper 6 is fixed with connecting rods 601 arranged in a ring array, and the upper ends of all connecting rods 601 are fixed to the bottom surface of the cover plate 3. The stirring paddle 501 at the bottom of the rotating shaft 5 is located below the medicine collection hopper 6.
[0023] Using the connecting rod 601, the medicine collection hopper 6 is installed below the cover plate 3, so that the mixed medicine is concentrated and introduced into the wastewater around the rotating shaft 5.
[0024] The specific working principle of this utility model is as follows: First, the cover plate 3 is placed on top of the wastewater treatment tank. At this time, the lower part of the rotating shaft 5 and the stirring paddle 501 extend into the wastewater. Then, various metering pumps 301 are used to input different required agents and extract different agents, which are discharged from the drug pipe 302 into the dosing tank 1. Then, the motor 102 drives the rotating shaft 4 to rotate. At this time, the solenoid valve 1031 is closed, and the rotating shaft 4, together with the stirring paddle 401, rotates to stir and premix the agents in the dosing tank 1. The mixed agents are discharged from the discharge pipe 103, pass through the cover plate 3, fall into the collecting hopper 6, and flow into the wastewater along the inner wall of the collecting hopper 6. At this time, the agent falls onto the circumference of the rotating shaft 25. The rotation of the rotating shaft 25 drives the rotation of the stirring paddle 2501, which quickly disperses and mixes the wastewater and agent in the area around the rotating shaft 25. During this process, the opening size of the solenoid valve 1031 is selected according to the reading of the flow meter 1032 to achieve quantitative and uniform dosing. After the dosing is completed, the cleaning water is input from the water pipe 205 and enters the outer ring pipe 201 and inner ring pipe 202 through the cooperation of the connecting pipe 204. Then it is sprayed out from the nozzle 203. The cleaning water is sprayed onto the inner wall of the dosing tank 1 and the rotating shaft 14 and the stirring paddle 1401 to clean the places where there may be residual agent and reduce the residue.
[0025] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.
Claims
1. An automatic dosing device for chemical wastewater treatment, comprising a dosing tank (1), a cleaning assembly (2), a cover plate (3), a first rotating shaft (4), a second rotating shaft (5), and a collection hopper (6), characterized in that: A dosing tank (1) is provided above the cover plate (3). A motor (102) is fixed at the top of the dosing tank (1). The output shaft of the motor (102) extends into the dosing tank (1) and is connected to a rotating shaft (4). A stirring paddle (401) is fixed in the outer periphery of the lower part of the rotating shaft (4). A rotating shaft (5) is rotatably connected through the cover plate (3) below the rotating shaft (4). A stirring paddle (501) is fixed at the lower part of the rotating shaft (5). A collection hopper (6) is provided below the cover plate (3) outside the rotating shaft (5). A cleaning assembly (2) is provided above the dosing tank (1). The cleaning assembly (2) includes an outer ring pipe (201) and an inner ring pipe (202) located at the top of the dosing tank (1). The outer periphery of the inner ring pipe (202) and the outer ring pipe (201) are fixed with nozzles (203) arranged in a ring array.
2. The automatic dosing device for chemical wastewater treatment according to claim 1, characterized in that: The lower part of the dosing tank (1) has a cone-shaped structure, and a discharge pipe (103) is fixed through the bottom of the dosing tank (1); a solenoid valve (1031) is fixed on the upper part of the discharge pipe (103), a flow meter (1032) is fixed on the lower part of the discharge pipe (103), and the bottom end of the discharge pipe (103) passes through the cover plate (3) and extends into the collection hopper (6); the lower part of the dosing tank (1) is fixed with inclined and circularly arrayed support legs (101), and the bottom end of the support legs (101) is fixed to the upper end of the cover plate (3).
3. The automatic dosing device for chemical wastewater treatment according to claim 1, characterized in that: The upper end of the second rotating shaft (5) extends out of the upper end of the cover plate (3), and a coupling (402) is connected between the bottom end of the first rotating shaft (4) and the upper end of the second rotating shaft (5).
4. The automatic dosing device for chemical wastewater treatment according to claim 1, characterized in that: A metering pump (301) with a linear array is fixed above one end of the top surface of the cover plate (3), and a medicine tube (302) is fixed through the outlet end of the metering pump (301), and the end of the medicine tube (302) away from the metering pump (301) is connected through to the upper part of the dosing tank (1).
5. The automatic dosing device for chemical wastewater treatment according to claim 1, characterized in that: The upper end of the medicine collection hopper (6) is fixed with connecting rods (601) arranged in a ring array, and the upper ends of all connecting rods (601) are fixed to the bottom surface of the cover plate (3). The stirring paddle (501) at the lower part of the rotating shaft (5) is located below the medicine collection hopper (6).
6. The automatic dosing device for chemical wastewater treatment according to claim 1, characterized in that: The inner ring pipe (202) is located inside the outer ring pipe (201), and a connecting pipe (204) is fixed between the inner ring pipe (202) and the outer ring pipe (201). A vertical water pipe (205) is fixed through the upper part of the periphery of the outer ring pipe (201).
7. The automatic dosing device for chemical wastewater treatment according to claim 1, characterized in that: The nozzle (203) at the bottom of the outer ring pipe (201) penetrates the top of the dosing tank (1) and is inclined toward the inner wall of the dosing tank (1). The nozzle (203) at the bottom of the inner ring pipe (202) penetrates the top of the dosing tank (1) and is inclined toward the direction of the rotating shaft (4).