Chemical production wastewater treatment equipment

Abstract

The utility model discloses a chemical production sewage treatment equipment relates to sewage treatment technical field. The chemical production sewage treatment equipment, include: the processing jar of inside hollow and upper end opening, the upper end of processing jar is connected with end cover through flange, the upper surface middle fixedly connected with stirring motor of end cover, the output of stirring motor downside is fixedly connected with stirring rod through end cover, the upper surface left and right sides of end cover are connected with feed inlet, the pipeline of feed inlet is fixedly connected with electromagnetic flowmeter, the upper end of electromagnetic flowmeter is connected with water valve through flange, the lower fixedly connected with water inlet pipeline of the front surface of processing jar, the pipeline of water inlet pipeline is fixedly connected with water pump and valve, the lower fixedly connected with water outlet pipeline of the left side of processing jar, the inner wall fixedly connected with water level sensor of processing jar, the front end of processing jar is provided with controller, the inside installation of controller has on -line PH value detection appearance.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater treatment device for chemical production. Background Technology

[0002] Chemical wastewater treatment equipment refers to complete sets of devices or systems specifically designed to treat various types of industrial wastewater generated during chemical production processes. It aims to remove pollutants (such as heavy metals, organic matter, suspended solids, and toxic substances) from wastewater using physical, chemical, and biological technologies to meet national or industry discharge standards or reuse requirements. However, existing chemical wastewater treatment equipment often adjusts the pH of the water body manually or mechanically by directly adding sulfuric acid, hydrochloric acid, sodium hydroxide, etc., in specific proportions. This method is prone to over- or under-addition, leading to pH values ​​that are easily too high or too low, making precise control difficult. Therefore, a new chemical wastewater treatment system is designed to address these issues. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, this utility model provides a chemical production wastewater treatment equipment, which solves the problem that the existing addition method is relatively backward, resulting in material waste and pH value that is easy to be too high or too low.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a wastewater treatment device for chemical production, comprising: a hollow treatment tank with an open top; an end cover connected to the top of the treatment tank via a flange; a stirring motor fixedly connected to the middle of the upper surface of the end cover; a stirring rod fixedly connected to the lower output end of the stirring motor passing through the end cover; feed inlets connected to the left and right sides of the upper surface of the end cover; an electromagnetic flow meter fixedly connected to the pipeline of the feed inlet; a water valve connected to the upper end of the electromagnetic flow meter via a flange; and a water inlet pipe fixedly connected to the lower end of the front surface of the treatment tank. A water pump and valve are fixedly connected in the pipeline. A water outlet pipe is fixedly connected to the lower left side of the treatment tank. A water level sensor is fixedly connected to the inner wall of the treatment tank. A controller is set at the front end of the treatment tank. An online pH value detector is installed inside the controller. The detection contact of the online pH value detector is located inside the treatment tank. The controller is electrically connected to the stirring motor, electromagnetic flow meter, water valve, water pump, valve, and water level sensor. A buffer tank is set on the right side of the treatment tank. The water outlet of the buffer tank is connected to the water inlet pipe of the treatment tank.

[0008] Preferably, the buffer tank is also equipped with a stirring motor, a stirring rod, and a water level sensor.

[0009] Preferably, the inner wall of the processing tank is provided with a heating swirl tube, the controller is equipped with a temperature sensor, the detection contact of the temperature sensor is installed inside the processing tank, and the controller is electrically connected to the heating swirl tube.

[0010] Preferably, the inner walls of both the treatment tank and the buffer tank are filled with water, a heat exchanger is provided between the treatment tank and the buffer tank, and the treatment tank and the buffer tank are connected to the heat exchanger through pipes.

[0011] Preferably, the outer sides of the processing tank and the buffer tank are wrapped with insulating cotton, and the outer sides of the pipes connecting the processing tank and the buffer tank to the heat exchanger are also wrapped with insulating cotton.

[0012] Preferably, the blades on the outer side of the stirring rod inside the processing tank or buffer tank are spiral-shaped.

[0013] Preferably, the inner walls of the processing tank and the buffer tank are made of stainless steel.

[0014] Preferably, the upper surface of the end cap of the processing tank and the buffer tank is connected to an air outlet pipe, and a pressure relief valve is provided at the connection between the air outlet pipe and the end cap.

[0015] Preferably, the lower ends of the two feed inlets are fixedly connected to a flow equalization pipe.

[0016] Preferably, the volume of the buffer tank is larger than the volume of the processing tank.

[0017] (III) Beneficial Effects

[0018] This utility model provides a wastewater treatment device for chemical production, which has at least the following advantages compared with the prior art:

[0019] This wastewater treatment equipment for chemical production uses a PID algorithm to control the flow rate of the dosing pump or the valve opening based on the deviation between the real-time detected pH value and the target value. The PID algorithm uses a proportional term (P) to quickly respond to the deviation, an integral term (I) to eliminate steady-state error, and a derivative term (D) to predict trends and suppress oscillations. This allows for precise control of the dosage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a partial enlarged view of the present invention;

[0022] Figure 3 This is a cross-sectional view of the present invention;

[0023] Figure 4 This is a diagram of the internal structure of this utility model;

[0024] Figure 5 This utility model Figure 4 The lower left side view.

[0025] In the diagram: 1. Processing tank; 2. End cap; 3. Stirring motor; 4. Stirring rod; 5. Feed inlet; 6. Electromagnetic flow meter; 7. Water valve; 8. Inlet pipe; 9. Outlet pipe; 10. Water level sensor; 11. Controller; 21. Buffer tank; 22. Heating vortex tube; 23. Heat exchanger; 24. Gas outlet pipe; 25. Flow equalization pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a chemical production wastewater treatment device, comprising: a hollow treatment tank 1 with an open top; an end cover 2 connected to the upper end of the treatment tank 1 via a flange; a stirring motor 3 fixedly connected to the middle of the upper surface of the end cover 2; a stirring rod 4 fixedly connected to the lower output end of the stirring motor 3 through the end cover 2; feed inlets 5 connected to the left and right sides of the upper surface of the end cover 2; an electromagnetic flow meter 6 fixedly connected to the pipeline of the feed inlet 5; a water valve 7 connected to the upper end of the electromagnetic flow meter 6 via a flange; and a water inlet pipe 8 fixedly connected to the lower end of the front surface of the treatment tank 1. A water pump and valve are fixedly connected in the pipeline. A water outlet pipe 9 is fixedly connected to the lower left side of the treatment tank 1. A water level sensor 10 is fixedly connected to the inner wall of the treatment tank 1. A controller 11 is set at the front end of the treatment tank 1. An online pH value detector is installed inside the controller 11. The detection contact of the online pH value detector is located inside the treatment tank 1. The controller 11 is electrically connected to the stirring motor 3, electromagnetic flow meter 6, water valve 7, water pump, valve, and water level sensor 10. A buffer tank 21 is set on the right side of the treatment tank 1. The water outlet of the buffer tank 21 is connected to the water inlet pipe 8 of the treatment tank 1.

[0028] In use, the controller 11 is equipped with a PID algorithm, AI model, and historical data (see patent: CN118331348A). Two feed inlets 5 are connected to the interfaces for controlling acidic and alkaline raw materials, respectively. The inlet at the top of the buffer tank 21 is connected to the waste liquid outlet. The liquid first enters the buffer tank 21 and then the treatment tank 1. The water level sensor 10 detects the amount of liquid inside. When the set water level is reached, the water pump and valve on the inlet pipe 8 are stopped, and then the inlet pipe 8 is started, causing the stirring rod 4 to rotate. The online pH meter detects the pH value inside the treatment tank 1 and transmits the pH value to the controller 11. The controller 11 then adjusts the pH value based on real-time data. The deviation between the detected pH value and the target value is quickly responded to by the proportional term P, the integral term I eliminates steady-state error, and the derivative term D predicts trends and suppresses oscillations. This directly controls the opening of water valve 7. Electromagnetic flow meter 6 detects the amount of material entering the system. The AI ​​model analyzes historical data to predict future pH trends and adjusts PID parameters in real time. For example, if the pH is predicted to rise rapidly, the proportional gain (P) is reduced and the derivative (D) is increased to prevent overshoot. If periodic fluctuations are detected, the integral time (I) is adjusted to match the disturbance frequency. The material is added in segments. After each mixing, the AI ​​will re-evaluate the PID value after a period of time, reopen water valve 7, and control the discharge amount until the reaction is complete. This allows for precise adjustment of the dosage and the pH value of the water.

[0029] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the buffer tank 21 is also equipped with a stirring motor 3, a stirring rod 4 and a water level sensor 10.

[0030] Analysis of the above structure shows that after the waste liquid enters the buffer tank 21, the stirring motor 3 will also be started to premix the water. When the water level sensor 10 detects that the set upper limit has been reached, it will stop adding water.

[0031] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the inner wall of the processing tank 1 is provided with a heating swirl tube 22, the controller 11 is equipped with a temperature sensor, the detection contact of the temperature sensor is installed inside the processing tank 1, and the controller 11 is electrically connected to the heating swirl tube 22.

[0032] Analysis of the above structure shows that during the reaction, the heating swirl tube 22 will be activated to heat the inside of the treatment tank 1, thereby achieving a suitable reaction water temperature.

[0033] like Figure 1-5As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, the inner walls of the processing tank 1 and the buffer tank 21 are both filled with water. A heat exchanger 23 is provided between the processing tank 1 and the buffer tank 21. The processing tank 1 and the buffer tank 21 are connected to the heat exchanger 23 through pipes.

[0034] Analysis of the above structure shows that the heating swirl tube 22 first heats the water in the inner wall of the treatment tank 1, and then indirectly heats the treatment tank 1 through the water to prevent the local temperature at the contact point with the heating swirl tube 22 from becoming too high. The water pump on the pipeline between the treatment tank 1, the buffer tank 21 and the heat exchanger 23 sends water into the interior of the heat exchanger 23 for heat exchange. When the temperature is too high, the power of the water pump is increased, and when the temperature is low, the water pump speed is reduced to ensure that the water temperature is stable and to preheat the liquid inside the buffer tank 21.

[0035] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the outer sides of the processing tank 1 and the buffer tank 21 are wrapped with heat insulation cotton, and the outer sides of the pipes connecting the processing tank 1 and the buffer tank 21 to the heat exchanger 23 are also wrapped with heat insulation cotton.

[0036] Analysis of the above structure shows that the insulation cotton wrapped around the outside of the treatment tank 1, buffer tank 21 and the pipes connecting the treatment tank 1, buffer tank 21 and heat exchanger 23 can reduce the loss of water temperature.

[0037] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the blades on the outer side of the stirring rod 4 inside the processing tank 1 and buffer tank 21 are spiral-shaped.

[0038] Analysis of the above structure shows that the blades on the outer side of the stirring rod 4 are spiral-shaped, which can push the water from the bottom to the top, making the water mix more evenly.

[0039] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the inner walls of the processing tank 1 and the buffer tank 21 are made of stainless steel.

[0040] Analysis of the above structure shows that the inner walls of both the treatment tank 1 and the buffer tank 21 are made of stainless steel, which can reduce the rate of corrosion and extend the service life.

[0041] like Figure 1-4 As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, the upper surface of the end cap 2 of the processing tank 1 and the buffer tank 21 is connected to the rear side of the air outlet pipe 24, and the connection between the air outlet pipe 24 and the end cap 2 is provided with a pressure relief valve.

[0042] Analysis of the above structure shows that the exhaust pipe 24 is connected to the waste gas treatment equipment. When the internal pressure of the treatment tank 1 and the buffer tank 21 is too high, the pressure relief valve is opened to relieve part of the pressure.

[0043] like Figure 1-5 As shown, this utility model embodiment provides an implementation method in which a flow equalization pipe 25 is fixedly connected to the lower ends of the two feed inlets 5, based on the above implementation method.

[0044] Analysis of the above structure shows that after the material for blending enters the feed inlet 5, it enters the interior of the uniform flow pipe 25 and flows evenly into the interior of the processing tank 1.

[0045] like Figure 1-3 As shown, this utility model embodiment provides an implementation method in which the volume of the buffer tank 21 is greater than the volume of the processing tank 1.

[0046] Analysis of the above structure shows that the volume of the buffer tank 21 is larger than that of the treatment tank 1, so that there is still redundancy when wastewater is input into the treatment tank 1.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for chemical production, characterized in that, include: A processing tank (1) is hollow inside and open at the top. An end cap (2) is connected to the top of the processing tank (1) via a flange. A stirring motor (3) is fixedly connected to the middle of the upper surface of the end cap (2). A stirring rod (4) is fixedly connected to the lower output end of the stirring motor (3) through the end cap (2). Feed inlets (5) are connected to the left and right sides of the upper surface of the end cap (2). An electromagnetic flow meter (6) is fixedly connected to the pipeline of the feed inlet (5). A water valve (7) is connected to the upper end of the electromagnetic flow meter (6) via a flange. A water inlet pipe (8) is fixedly connected to the lower end of the front surface of the processing tank (1). A water pump and a valve are fixedly connected to the pipeline of the water inlet pipe (8). A water outlet pipe (9) is fixedly connected to the lower left side of the treatment tank (1). A water level sensor (10) is fixedly connected to the inner wall of the treatment tank (1). A controller (11) is provided at the front end of the treatment tank (1). An online pH value detector is installed inside the controller (11). The detection contact of the online pH value detector is located inside the treatment tank (1). The controller (11) is electrically connected to the stirring motor (3), electromagnetic flow meter (6), water valve (7), water pump, valve, and water level sensor (10). A buffer tank (21) is provided on the right side of the treatment tank (1). The water outlet of the buffer tank (21) is connected to the water inlet pipe (8) of the treatment tank (1).

2. The chemical production wastewater treatment equipment according to claim 1, characterized in that: The buffer tank (21) is also equipped with a stirring motor (3), a stirring rod (4) and a water level sensor (10).

3. The chemical production wastewater treatment equipment according to claim 1, characterized in that: The inner wall of the processing tank (1) is provided with a heating swirl tube (22), and a temperature sensor is installed in the controller (11). The detection contact of the temperature sensor is installed inside the processing tank (1), and the controller (11) is electrically connected to the heating swirl tube (22).

4. The chemical production wastewater treatment equipment according to claim 1, characterized in that: The inner walls of both the treatment tank (1) and the buffer tank (21) are filled with water. A heat exchanger (23) is provided between the treatment tank (1) and the buffer tank (21). The treatment tank (1) and the buffer tank (21) are connected to the heat exchanger (23) through pipes.

5. The chemical production wastewater treatment equipment according to claim 1, characterized in that: The outer sides of the processing tank (1) and the buffer tank (21) are wrapped with heat insulation cotton, and the outer sides of the pipes connecting the processing tank (1) and the buffer tank (21) to the heat exchanger (23) are also wrapped with heat insulation cotton.

6. The chemical production wastewater treatment equipment according to claim 1, characterized in that: The blades on the outside of the stirring rod (4) inside the processing tank (1) and buffer tank (21) are spiral-shaped.

7. The chemical production wastewater treatment equipment according to claim 1, characterized in that: The inner walls of the processing tank (1) and the buffer tank (21) are made of stainless steel.

8. The chemical production wastewater treatment equipment according to claim 1, characterized in that: The processing tank (1) and the buffer tank (21) are both connected to an exhaust pipe (24) on the rear side of the upper surface of the end cap (2), and a pressure relief valve is provided at the connection between the exhaust pipe (24) and the end cap (2).

9. A chemical production wastewater treatment device according to claim 1, characterized in that: The lower ends of the two feed inlets (5) are fixedly connected to flow equalization pipes (25).

10. A chemical production wastewater treatment device according to claim 1, characterized in that: The volume of the buffer tank (21) is greater than the volume of the processing tank (1).

Images