A detection system for the flocculation effect of paint mist flocculants

Abstract

The present invention discloses a detection system for the flocculation effect of paint mist flocculant, which includes a flocculation reaction system and a water turbidity detection system; the flocculation reaction system includes a flocculation reaction tank, above which there are a stirrer, an automatic dosing tank for paint mist flocculant, and a paint inlet device and a paint atomization device connected as a whole; the water turbidity detection system includes a water quality test box, in which there is a turbidity sensor, the turbidity sensor is connected to a turbidity tester arranged outside the water quality test box, and the turbidity tester is connected to a touch control display screen; the outlet of the flocculation reaction tank is connected to the water quality test box, and the outlet of the water quality test box is connected to the flocculation reaction tank. By building a small paint sewage treatment system and simulating the industrial field application environment, the present invention makes the test results more accurate and closer to the actual use situation, can test the influence of the dosage of paint mist flocculant on the flocculation effect, realizes the precise control of the dosage of paint mist flocculant, and saves costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of paint mist flocculants, and more specifically, relates to a detection system for the flocculation effect of paint mist flocculants. Background Art

[0002] Paint mist flocculants are mainly used for treating paint sewage and consist of two chemical reagents, agent A and agent B. Since the paint mist has a certain amount of negative charge in the circulating water, after adding agent A, the charge of the paint mist is transferred and it loses its viscosity, forming unstable fine particles. After adding paint mist flocculant agent B, agent B is strongly adsorbed by it, and the paint mist generated during the spraying process is neutralized by charge, wrapped by flocs, and aggregated into porous paint sludge floating on the water surface, thus achieving the purpose of removal. The quality of the flocculation effect of paint mist flocculants directly affects the service life and daily maintenance of paint spraying circulating water equipment, and is crucial for cost control. At present, the research on paint mist flocculants in the industry mainly focuses on formula design. The evaluation of the flocculation effect mainly relies on trial use in the production line and visual rating in experiments, which has high subjectivity and cannot effectively distinguish the quality of the flocculation effect. In view of the above problems, there is an urgent need to develop a simple, easy-to-implement, and highly accurate detection device and method for the flocculation effect of paint mist flocculants to objectively and accurately evaluate the flocculation effect of various brands of paint mist flocculants.

[0003] At present, there are few public reports and literatures on the detection of the flocculation effect of paint mist flocculants at home and abroad. Most of them focus on the field of paint mist flocculant formula development. Only some units have carried out experimental research on the detection of the flocculation effect and achieved some research results. For example, patent CN202110821709.8 (a performance test method for a paint mist coagulant) provides a test method for measuring the performance of a paint mist flocculant, and mainly evaluates the flocculation effect of the paint mist flocculant through the moisture content of the paint sludge, flocculation effect, and coagulation effect. The disadvantages of this method are as follows: 1) This method has many steps and is complex to operate. After the paint mist flocculant reacts with the paint mist, part of it will remain in the paint sludge, causing a change in the weight of the paint sludge and resulting in large errors during the measurement process. 2) This method mainly calculates and evaluates the use effect of the paint mist flocculant through the mass difference after drying the paint sludge, and there is a large gap between the test process and the actual application situation on site, so the test results may deviate. 3) This method requires a long test duration and is not suitable for quickly judging the use effect of paint mist flocculants on site to determine the addition frequency of paint mist flocculants. Summary of the Invention

[0004] The object of the present invention is to provide a detection system for the flocculation effect of paint mist flocculants to address the above deficiencies.

[0005] To achieve the above object, the present invention is realized through the following technical solutions:

[0006] A detection system for the flocculation effect of paint mist flocculants includes a flocculation reaction system and a water turbidity detection system;

[0007] The flocculation reaction system includes a flocculation reaction tank, above which there are a stirrer, an automatic paint mist flocculant dosing tank, a paint inlet device and a paint atomization device connected as a whole;

[0008] The water turbidity detection system includes a water quality test box, inside which there is a turbidity sensor. The turbidity sensor is connected to a turbidity tester arranged outside the water quality test box, and the turbidity tester is connected to a touch display screen containing data processing software;

[0009] The outlet of the flocculation reaction tank is connected to the water quality test box, and the outlet of the water quality test box is connected to the flocculation reaction tank.

[0010] Further, the paint atomization device is arranged perpendicular to the bottom surface of the flocculation reaction tank, and the bottom end of the paint atomization device is located 50 mm to 200 mm above the liquid level in the flocculation reaction tank.

[0011] Further, the stirrer includes a stirrer control mechanism, a stirring rod and a stirring rotor connected in sequence. The stirrer control mechanism drives the stirring rod to drive the stirring rotor to rotate. The stirring rod is a telescopic stirring rod for adjusting the distance between the stirring rotor and the bottom surface of the flocculation reaction tank.

[0012] Further, the automatic paint mist flocculant dosing tank includes an A-agent automatic dosing tank and a B-agent automatic dosing tank. Both the A-agent automatic dosing tank and the B-agent automatic dosing tank are connected to a dosing pipe, and the bottom end of the dosing pipe is located 50 mm to 200 mm above the liquid level in the flocculation reaction tank.

[0013] Further, the outlet of the flocculation reaction tank is connected to the water quality test box through a water outlet pipe.

[0014] Further, a filter screen and a timing switch are provided on the water outlet pipe; the filter screen is used to filter out large paint residues in the liquid flowing out of the flocculation reaction tank; the timing switch is used to control the time interval and the outflow volume of the sample in the flocculation reaction tank, automatically detect the water quality in the flocculation reaction tank regularly, and test the failure time of the paint mist flocculant.

[0015] Further, the turbidity tester is connected to the touch display screen through a data transmission line. The touch display screen is used to input the test water quality turbidity data, process the data, and display information such as the test time, test volume, and turbidity value.

[0016] Further, the outlet of the water quality test box is connected to the flocculation reaction tank through a return water pipe.

[0017] Further, a control switch and a water delivery motor are provided on the return water pipe. The control switch is in an open state when the water turbidity meets the requirements to ensure the normal flow of the circulating water; it is in a closed state when the water turbidity is too high to prevent unqualified water quality from flowing into the flocculation reaction tank; the water delivery motor is used to provide a power system to transport the outflowing water back to the flocculation reaction tank, simulating the industrial field application environment.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The paint mist flocculant flocculation effect detection system of the present invention, by building a small paint sewage treatment system and simulating the industrial field application environment, makes the test results more accurate and closer to the actual use conditions, can test the influence of the dosage of the paint mist flocculant on the flocculation effect, realize the precise control of the dosage of the paint mist flocculant, and save costs; and the test method is simple, easy to implement, easy to operate, the device structure is simple, and the flocculation effect can be quantitatively measured;

[0020] The water turbidity detection system of the present invention uses water turbidity as an index to evaluate the quality of the flocculation effect of the paint mist flocculant, including but not limited to indexes such as water turbidity, suspended solid content, and light transmittance that characterize the water quality state; it can display the water quality information of the outflowing water in the flocculation reaction tank in real time, which is convenient for tracking the influence of the addition amount of different brands of paint mist flocculants on the flocculation effect, testing the addition amount and supplementary addition frequency of different brands of paint mist flocculants, and controlling costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is a schematic structural diagram of a paint mist flocculant flocculation effect detection system provided by an embodiment of the present invention.

[0022] In the figure: 1. Flocculation reaction system, 2. Flocculation reaction tank, 3. Paint inlet device, 4. Paint atomization device, 5. Stirrer control mechanism, 6. Stirring rod, 7. Stirring rotor, 8. Automatic dosing tank for agent A, 9. Automatic dosing tank for agent B, 10. Dosing pipe, 11. Outlet pipe, 12. Filter screen, 13. Timing switch, 14. Water turbidity detection system, 15. Water quality test box, 16. Turbidity sensor, 17. Turbidity tester, 18. Data transmission line, 19. Touch screen display, 20. Return water pipe, 21. Control switch, 22. Water delivery motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances. Embodiment

[0026] As Figure 1 shown, a detection system for the flocculation effect of paint mist flocculant simulates the industrial field application environment and builds a small paint sewage treatment system, including a flocculation reaction system 1 and a water turbidity detection system 14.

[0027] In this embodiment, the flocculation reaction system 1 is provided with a flocculation reaction tank 2, a paint inlet device 3, a paint atomization device 4, a stirrer, and an automatic dosing tank for paint mist flocculant. The paint inlet device 3 and the paint atomization device 4 are connected integrally and are arranged above the flocculation reaction tank 2. The paint atomization device 4 is arranged perpendicular to the bottom surface of the flocculation reaction tank 2, and the bottom end of the paint atomization device 4 is located 50 mm to 200 mm above the liquid level in the flocculation reaction tank 2. The stirrer includes a stirrer control mechanism 5, a stirring rod 6, and a stirring rotor 7 connected in sequence. The stirrer control mechanism 5 is arranged above the flocculation reaction tank 2 and is used to drive the stirring rod 6 to drive the stirring rotor 7 to rotate. The stirring rod 6 is a telescopic stirring rod and is used to adjust the distance between the stirring rotor 7 and the bottom surface of the flocculation reaction tank 2. The automatic dosing tank for paint mist flocculant is arranged above the flocculation reaction tank 2 and is divided into an automatic dosing tank 8 for paint mist flocculant A and an automatic dosing tank 9 for paint mist flocculant B, and is connected with a dosing pipe 10. The bottom end of the dosing pipe 10 is located 50 mm to 200 mm above the liquid level in the flocculation reaction tank.

[0028] The outlet of the flocculation reaction tank 2 in this embodiment is connected to the water quality test box 15 through a water outlet pipe 11. A filter screen 12 and a timing switch 13 are provided on the water outlet pipe 11. The filter screen 12 is arranged on the water outlet pipe 11 and is used to filter out large paint residues in the liquid flowing out of the flocculation reaction tank 2. The timing switch 13 is arranged on the water outlet pipe 11 and is used to control the time interval and flow rate of the sample flowing out of the flocculation reaction tank 2, automatically detect the water quality in the flocculation reaction tank regularly, and test the failure time of the paint mist flocculant.

[0029] The water turbidity detection system 14 in this embodiment includes a water quality test box 15, a turbidity sensor 16, a turbidity tester 17, a data transmission line 18, and a touch display screen 19. The turbidity sensor 16 is arranged inside the water quality test box 15. The turbidity tester 17 is arranged outside the water quality test box 15 and is connected to the turbidity sensor 16, and is used to test the turbidity of the water flowing out of the flocculation reaction tank 2. The touch display screen 19 is connected to the turbidity tester 17 through the data transmission line 18. The touch display screen 19 contains data processing software, which is used to input the test water quality turbidity data, process the data, and display information such as the test time, test volume, and turbidity value.

[0030] The outlet of the water quality test box 15 in this embodiment is connected to the flocculation reaction tank 2 through a water return pipe 20. A control switch 21 and a water delivery motor 22 are provided on the water return pipe 20. The control switch 21 is in an open state when the water turbidity meets the requirements to ensure the normal flow of the circulating water; it is in a closed state when the water turbidity is too high to prevent unqualified water quality from flowing into the flocculation reaction tank 2. The water delivery motor 22 is arranged on the water return pipe 20 and is used to provide a power system to transport the outflowing water back to the flocculation reaction tank 2 to simulate the industrial field application environment.

[0031] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art in the technical field without departing from the scope and technical principle of the described embodiments. These modifications and changes should also be regarded as the protection scope of the present invention.

Claims

1. A detection system for the flocculation effect of paint mist flocculants, characterized in that, It includes a flocculation reaction system and a water turbidity detection system; The flocculation reaction system includes a flocculation reaction tank, above which there are a stirrer, an automatic paint mist flocculant dosing tank, a paint inlet device and a paint atomization device connected as a whole; The water turbidity detection system includes a water quality test box, inside which there is a turbidity sensor. The turbidity sensor is connected to a turbidity tester arranged outside the water quality test box, and the turbidity tester is connected to a touch display screen containing data processing software; The outlet of the flocculation reaction tank is connected to the water quality test box, and the outlet of the water quality test box is connected to the flocculation reaction tank; The paint atomization device is arranged perpendicular to the bottom surface of the flocculation reaction tank, and the bottom end of the paint atomization device is 50 mm to 200 mm above the liquid level in the flocculation reaction tank; The stirrer includes a stirrer control mechanism, a stirring rod and a stirring rotor connected in sequence. The stirrer control mechanism drives the stirring rod to drive the stirring rotor to rotate, and the stirring rod is a telescopic stirring rod; The automatic paint mist flocculant dosing tank includes an A-agent automatic dosing tank and a B-agent automatic dosing tank, and both the A-agent automatic dosing tank and the B-agent automatic dosing tank are connected to a dosing pipe; The bottom end of the dosing pipe is 50 mm to 200 mm above the liquid level in the flocculation reaction tank; The outlet of the flocculation reaction tank is connected to the water quality test box through a water outlet pipe; A filter screen and a timing switch are arranged on the water outlet pipe; The outlet of the water quality test box is connected to the flocculation reaction tank through a return pipe; a control switch and a water delivery motor are arranged on the return pipe.

2. The paint mist flocculant flocculation effect detection system according to claim 1, wherein The turbidity tester is connected to the touch display screen through a data transmission line.

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