A printing and dyeing wastewater treatment device

Abstract

The utility model belongs to sewage treatment technical field especially is a kind of printing and dyeing wastewater treatment device. Including steel reactor and disc separator, disc separator is connected with steel reactor by pipeline, steel reactor includes steel structure pool body and agitator, agitator is installed in steel structure pool body. The utility model pumps into the steel reactor to powder carbon sludge mixed solution, the structure of suspended matter is destroyed to accelerate settling velocity by the high intensity cavitation effect generated by ultrasonic wave, and the ultrasonic acoustic matching layer of coating can increase ultrasonic penetration and improve energy utilization, combined with agitator can collide with other particles in water, to promote the settlement of suspended matter, after adsorption settlement, pump into disc separator, to separate the powder activated carbon after regeneration and the acidic iron ion solution after oxidation, can reduce powder carbon loss rate, while efficiently recycling iron ion, greatly reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a dyeing and printing wastewater treatment device. Background Technology

[0002] The wastewater treatment process for dyeing and printing mainly includes pretreatment, biological treatment, and advanced treatment. In the pretreatment stage, the wastewater passes through a screen to remove large particulate impurities and then enters an equalization tank to balance the water quality and quantity. In the biological treatment stage, the wastewater first passes through a UASB anaerobic reactor to decompose organic matter using anaerobic bacteria, and then enters a primary oxidation tank, intermediate sedimentation tank, secondary oxidation tank, and secondary sedimentation tank for aerobic biological treatment. In the advanced treatment stage, the effluent from the secondary sedimentation tank enters a tertiary oxidation tank, and then a coagulant is added to the sedimentation tank for flocculation treatment. Finally, the water quality is further purified by activated carbon adsorption.

[0003] In activated carbon adsorption and flocculation treatment, flocculation is usually carried out in the wastewater reaction tank. Coagulants (such as ferrous sulfate) are added to cause colloids and fine suspended solids to coagulate into large particles and settle, removing some pollutants and color. Activated carbon adsorption utilizes the porous structure of activated carbon to adsorb residual dissolved organic matter, pigments, odors, etc. in the water, which is an important step in deep treatment. However, because the powdered activated carbon particles are too small, the sedimentation is slow or even impossible, and coagulants must be added to assist sedimentation. The flocculation capacity of the coagulant itself is not fully utilized. At the same time, the regeneration of powdered activated carbon is very difficult, and it can only be discarded after one use, which is costly.

[0004] Therefore, we propose a dyeing and printing wastewater treatment device to solve the above problems. Summary of the Invention

[0005] Technical problems to be solved In view of the shortcomings of the prior art, this utility model provides a dyeing and printing wastewater treatment device, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: A dyeing and printing wastewater treatment device includes a steel reactor and a disc separator. The disc separator is connected to the steel reactor via a pipeline. The steel reactor includes a steel structure tank and a stirrer. The stirrer is installed in the steel structure tank, and the inner wall of the steel structure tank is coated with an ultrasonic acoustic matching layer. A transducer and an ultrasonic generator are respectively installed on the side wall of the steel structure tank, and the transducer and the ultrasonic generator are electrically connected. The disc separator includes a base and a housing. The housing is fixed to the base, and a drum assembly is installed inside the housing. A worm gear structure is installed inside the base, and the worm wheel of the worm gear structure is fixedly connected to the drum assembly. A high-speed motor is installed on the outside of the base, and the output shaft of the high-speed motor is fixedly connected to the worm of the worm gear structure.

[0007] Furthermore, the steel structure pool has a wastewater inlet on one side and a wastewater outlet on the other side.

[0008] Furthermore, a sewage pump is connected to the wastewater outlet, and the outlet end of the sewage pump is connected to a disc separator via a pipe.

[0009] Furthermore, the top of the steel structure tank is provided with an acid-adjusting dosing port and a hydrogen peroxide dosing port, and the acid-adjusting dosing port and the hydrogen peroxide dosing port are close to the wastewater inlet.

[0010] Furthermore, a pH meter is installed on the top of the steel structure tank, the agitator's impeller is located inside the steel structure tank, and its motor is located outside the steel structure tank.

[0011] Furthermore, the lower end of the drum assembly is installed at the bottom of the housing via a mechanical seal, and the lower end of the drum assembly penetrates into the base through the mechanical seal.

[0012] Furthermore, the upper part of the drum assembly is provided with a feed inlet, a light phase liquid outlet and a heavy phase liquid outlet in sequence, and the outer wall of the casing is provided with a solid phase outlet.

[0013] Furthermore, the feed inlet extends outward from the top of the housing, and the light phase liquid outlet and the heavy phase liquid outlet extend outward from the side wall of the housing, respectively.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a dyeing and printing wastewater treatment device, which has the following beneficial effects: This invention pumps a mixture of powdered activated carbon and sludge into a steel reactor. The high-intensity cavitation effect generated by ultrasound breaks down the structure of suspended solids to accelerate sedimentation. The coated ultrasonic acoustic matching layer increases ultrasonic penetration and improves energy utilization. Combined with a stirrer, the mixture collides with other particles in the water, thereby promoting sedimentation of suspended solids. After adsorption and sedimentation, the mixture is pumped into a disc separator to separate the regenerated powdered activated carbon from the oxidized acidic iron ion solution. This reduces the powdered activated carbon loss rate and efficiently recovers and utilizes iron ions, significantly reducing costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the steel reactor structure of this utility model; Figure 3 This is a schematic diagram of the disc separator of this utility model.

[0016] In the diagram: 1. Steel reactor; 11. Steel structure tank; 12. Agitator; 13. Ultrasonic acoustic matching layer; 14. Transducer; 15. Ultrasonic generator; 16. Wastewater inlet; 17. Wastewater outlet; 18. Acidification and chemical dosing port; 19. Hydrogen peroxide dosing port; 110. pH meter; 2. Disc separator; 21. Base; 22. Casing; 23. Drum assembly; 24. Worm gear structure; 25. High-speed motor; 26. Feed inlet; 27. Light phase liquid outlet; 28. Heavy phase liquid outlet; 29. ​​Solid phase outlet; 3. Sewage pump. Detailed Implementation

[0017] 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.

[0018] Example like Figures 1-3As shown in the figure, an embodiment of the present invention proposes a dyeing and printing wastewater treatment device, including a steel reactor 1 and a disc separator 2. The disc separator 2 is connected to the steel reactor 1 through a pipeline. The powdered activated carbon and sludge mixture is pumped into the steel reactor 1. The structure of the suspended solids is destroyed by the high-intensity cavitation effect generated by ultrasound to accelerate the settling speed. The coated ultrasonic acoustic matching layer 13 can increase the ultrasonic penetration rate and improve the energy utilization rate. Combined with the stirrer 12, it can collide with other particles in the water, thereby promoting the settling of suspended solids. After adsorption and settling, it is pumped into the disc separator 2 to separate the regenerated powdered activated carbon and the oxidized acidic iron ion solution. This can reduce the powdered activated carbon loss rate and efficiently recover and utilize iron ions, greatly reducing costs. The steel reactor 1 includes a steel structure tank 11 and a stirrer 12. The stirrer 12 is installed in the steel structure tank 11, and the inner wall of the steel structure tank 11 is coated with an ultrasonic acoustic matching layer 13. A transducer 14 and an ultrasonic generator 15 are respectively installed on the side wall of the steel structure tank 11, and the transducer 14 and the ultrasonic generator 15 are electrically connected. The disc separator 2 includes a base 21 and a housing 22. The housing 22 is fixed on the base 21, and a drum assembly 23 is installed inside the housing 22. A worm gear structure 24 is installed inside the base 21, and the worm wheel of the worm gear structure 24 is fixedly connected to the drum assembly 23. A high-speed motor 25 is installed on the outside of the base 21, and the output shaft end of the high-speed motor 25 is fixedly connected to the worm of the worm gear structure 24.

[0019] like Figure 2 As shown, in some embodiments, the steel structure tank 11 is provided with a wastewater inlet 16 on one side and a wastewater outlet 17 on the other side. The powdered carbon sludge mixture is pumped into the steel reactor 1 through the wastewater inlet 16. After adsorption and sedimentation, it is pumped into the disc separator 2 through the wastewater outlet 17.

[0020] like Figure 1 As shown, in some embodiments, a sewage pump 3 is connected to the wastewater outlet 17, and the outlet end of the sewage pump 3 is connected to the disc separator 2 through a pipe. The sewage pump 3 is a centrifugal pump specifically used to transport sewage or wastewater containing impurities such as solid particles and fibers.

[0021] like Figure 2 As shown, in some embodiments, the top of the steel structure tank 11 is provided with an acid-adjusting dosing port 18 and a hydrogen peroxide dosing port 19, and the acid-adjusting dosing port 18 and the hydrogen peroxide dosing port 19 are close to the wastewater inlet 16. The acid-adjusting dosing port 18 is used to add an acid-adjusting agent, and the hydrogen peroxide dosing port 19 is used to add a strong oxidizing agent.

[0022] like Figure 2As shown, in some embodiments, a pH meter 110 is installed on the top of the steel structure tank 11, the stirring paddle of the stirrer 12 is located inside the steel structure tank 11, and its motor is located outside the steel structure tank 11. The main function of the pH meter 110 in wastewater treatment is to monitor and control the acidity and alkalinity (pH value) in real time, so as to ensure the stability and efficiency of the treatment process.

[0023] like Figure 3 As shown, in some embodiments, the lower end of the drum assembly 23 is installed at the bottom of the housing 22 by a mechanical seal, and the lower end of the drum assembly 23 passes through the mechanical seal into the base 21. The drum assembly 23 is driven to rotate at high speed by a high-speed motor 25, providing core power for centrifugal separation. The drum assembly 23 is the core component of high-speed rotation. It is equipped with a disc group (composed of multiple disc-shaped partitions arranged closely along the axial direction to form numerous tiny centrifugal sedimentation chambers, which is the key structure for realizing solid-liquid separation), providing rotational power and space for centrifugal separation.

[0024] like Figure 3 As shown, in some embodiments, the upper part of the drum assembly 23 is provided with a feed inlet 26, a light phase liquid outlet 27 and a heavy phase liquid outlet 28 in sequence, and the outer wall of the housing 22 is provided with a solid phase outlet 29. The powder-carbon mixture to be separated is introduced into the drum assembly 23 through the feed inlet 26 to provide material for the separation process.

[0025] like Figure 3 As shown, in some embodiments, the feed inlet 26 extends outward from the top of the housing 22, and the light phase liquid outlet 27 and the heavy phase liquid outlet 28 extend outward from the side wall of the housing 22, respectively. The light phase liquid outlet 27, the heavy phase liquid outlet 28 and the solid phase outlet 29 are used to discharge the separated acidic iron ion solution, the regenerated activated carbon mixture and the powdered carbon material, respectively.

[0026] In operation, the powdered carbon sludge mixture is pumped into the steel reactor 1. The high-intensity cavitation effect generated by ultrasound disrupts the structure of suspended solids, accelerating sedimentation. The coated ultrasonic acoustic matching layer 13 (whose core principle is to reduce the reflection loss of ultrasound waves between the transducer 14 surface and the propagation medium through a gradual acoustic impedance design; in industrial applications, polyimide-alumina systems are preferred as the matching layer material, maintaining stable acoustic performance at 200℃) increases ultrasonic penetration and improves energy utilization. Combined with the agitator 12, it allows collisions with other particles in the water, further promoting sedimentation. The mixture to be separated is then pumped into the drum assembly 23 through the inlet 26 by the wastewater pump 3. The high-speed motor 25 drives the drum assembly 23 to rotate at high speed. As the drum rotates at high speed, it gains centrifugal acceleration. Under centrifugal force, components of different densities in the mixture (such as solids, light phases, and dark phases) separate. Due to differences in inertial forces, the liquid phase and heavy liquid phase stratify. The solid particles (powdered activated carbon), with the highest density, are thrown towards the inner wall of the drum, while the light liquid phase, with the lowest density, is thrown towards the center of the drum. The heavy liquid phase lies between the solid and light liquid phases. The solid particles move along the inner wall of the drum towards the bottom and are eventually discharged from the solid phase outlet 29. The light liquid (acidic iron ion solution) phase gathers along the disc assembly towards the center of the drum and is discharged from the light liquid outlet 27. The heavy liquid (regenerated mixed liquid) phase gathers along the disc assembly towards the outer side of the drum and is discharged from the heavy liquid outlet 28. This allows for the recycling of powdered activated carbon, reducing costs. The liquid concentrate itself eliminates the tedious operation of re-mixing and adding powdered activated carbon, greatly reducing costs and maintenance workload. At the same time, iron ions, which could only be used once in the past, are first used as a flocculant for powdered activated carbon, then as a Fenton catalyst during regeneration, and finally as an iron ion agent, thus recovering and utilizing iron ions multiple times, saving energy and reducing costs.

[0027] In summary, the powdered activated carbon and sludge mixture is pumped into a steel reactor 1. The high-intensity cavitation effect generated by ultrasound breaks down the structure of suspended solids to accelerate sedimentation. The coated ultrasonic acoustic matching layer 13 increases the ultrasonic penetration rate and improves energy utilization. Combined with the stirrer 12, it can collide with other particles in the water, thereby promoting the sedimentation of suspended solids. After adsorption and sedimentation, it is pumped into a disc separator 2 to separate the regenerated powdered activated carbon from the oxidized acidic iron ion solution. This reduces the powdered activated carbon loss rate and efficiently recovers and utilizes iron ions, greatly reducing costs.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dyeing and printing wastewater treatment device, comprising a steel reactor (1) and a disc separator (2), characterized in that: The disc separator (2) is connected to the steel reactor (1) via a pipeline; The steel reactor (1) includes a steel structure tank (11) and a stirrer (12). The stirrer (12) is installed in the steel structure tank (11), and the inner wall of the steel structure tank (11) is coated with an ultrasonic acoustic matching layer (13). A transducer (14) and an ultrasonic generator (15) are respectively installed on the side wall of the steel structure tank (11), and the transducer (14) and the ultrasonic generator (15) are electrically connected. The disc separator (2) includes a base (21) and a housing (22). The housing (22) is fixed on the base (21), and a drum assembly (23) is installed inside the housing (22). A worm gear structure (24) is installed inside the base (21), and the worm wheel of the worm gear structure (24) is fixedly connected to the drum assembly (23). A high-speed motor (25) is installed on the outside of the base (21), and the output shaft end of the high-speed motor (25) is fixedly connected to the worm of the worm gear structure (24).

2. The dyeing and printing wastewater treatment device according to claim 1, characterized in that: The steel structure pool (11) has a wastewater inlet (16) on one side and a wastewater outlet (17) on the other side.

3. The dyeing and printing wastewater treatment device according to claim 2, characterized in that: A sewage pump (3) is connected to the wastewater outlet (17), and the outlet end of the sewage pump (3) is connected to the disc separator (2) through a pipe.

4. The dyeing and printing wastewater treatment device according to claim 2, characterized in that: The top of the steel structure tank (11) is provided with an acid-adjusting dosing port (18) and a hydrogen peroxide dosing port (19), and the acid-adjusting dosing port (18) and the hydrogen peroxide dosing port (19) are close to the wastewater inlet (16).

5. The dyeing and printing wastewater treatment device according to claim 1, characterized in that: A pH meter (110) is installed on the top of the steel structure pool (11), and the stirring paddle of the stirrer (12) is located inside the steel structure pool (11), while its motor is located outside the steel structure pool (11).

6. The dyeing and printing wastewater treatment device according to claim 1, characterized in that: The lower end of the drum assembly (23) is installed at the bottom of the housing (22) by a mechanical seal, and the lower end of the drum assembly (23) passes through the mechanical seal into the base (21).

7. The dyeing and printing wastewater treatment device according to claim 1, characterized in that: The upper part of the drum assembly (23) is provided with a feed inlet (26), a light phase liquid outlet (27) and a heavy phase liquid outlet (28), and the outer wall of the housing (22) is provided with a solid phase outlet (29).

8. The dyeing and printing wastewater treatment device according to claim 7, characterized in that: The feed inlet (26) extends outward from the top of the housing (22), and the light phase liquid outlet (27) and the heavy phase liquid outlet (28) extend outward from the side wall of the housing (22), respectively.

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