A device for advanced treatment of oil-containing wastewater

Abstract

The utility model discloses a kind of deep processing device of oily wastewater, including, waste liquid bearing shell, and oil-containing wastewater treatment structure is installed on the waste liquid bearing shell;The utility model relates to oily wastewater treatment equipment technical field, three-dimensional grid ozone release structure realizes multi-angle, multilevel contact, cooperate nanometer microbubble cutting technology to refine ozone bubble, greatly extend ozone residence time and improve utilization, completely solve the problem of traditional device "reaction dead zone" and oil pollution package bubble.

Description

Technical Field

[0001] This utility model relates to the technical field of oily wastewater treatment equipment, specifically to a deep treatment device for oily wastewater. Background Technology

[0002] Existing oily wastewater treatment technologies suffer from four major bottlenecks: First, ozone oxidation efficiency is low. Traditional single-point release results in large bubble diameters and short residence times, making it easy for oil to encapsulate the bubbles and form an "air flotation barrier," making it difficult to achieve a COD removal rate of over 60%. Second, there are defects in pressure control. Fixed-opening valves cannot dynamically adjust pressure, and insufficient sealing makes it difficult to achieve precise pressure boosting of 1.2-1.5 MPa, resulting in only a 20-30% increase in ozone solubility. Third, there is uneven spatial mixing. Single-layer / non-three-dimensional release components cause ozone concentrations in 30% of the area to be below the threshold, forming a "reaction dead zone," where the rupture of large-sized bubbles exacerbates oil aggregation. Fourth, there is a lack of intelligent control. The technology relies heavily on manual operation and cannot respond to changes in pressure, concentration, and liquid level in real time, easily leading to problems such as overflow and incomplete treatment. This patent breaks through the above-mentioned bottlenecks through four-dimensional innovations: a three-dimensional grid ozone release structure, a dynamic pressurization and sealing system, nanoscale microbubble cutting technology, and an intelligent closed-loop control system. It achieves efficient mixing and deep oxidation decomposition of ozone and wastewater, ensuring stable compliance of effluent quality and providing a brand-new solution for the deep treatment of oily wastewater. In view of this, in-depth research was conducted on the above-mentioned problems, which led to this case. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a deep treatment device for oily wastewater, comprising a waste liquid carrying shell, an oily wastewater treatment structure mounted on the waste liquid carrying shell, the oily wastewater treatment structure comprising a first electromagnetic control valve body, the first electromagnetic control valve body being mounted on the waste liquid carrying shell and connected to a discharge pipe, a second electromagnetic control valve body being mounted on the waste liquid carrying shell and connected to an inlet pipe, a chamber connection regulating valve body being mounted on the waste liquid carrying shell, and an ozone transport pipe body being fixedly inserted into the waste liquid carrying shell, with an ozone dissipation component mounted on the ozone transport pipe body.

[0004] Preferably, the ozone dispersing assembly includes a plurality of branch delivery pipes, the plurality of branch delivery pipes being respectively installed on the ozone transport pipe, the branch delivery pipes being provided with a plurality of ozone dispersion discs, the ozone dispersion discs being provided with a plurality of microbubble emitting holes, and the ozone dispersion discs being provided with a dispersing net. Preferably, the silo body connecting regulating valve body and the waste liquid carrying shell are connected by a flange seal. The valve core opening is adjustable to control the communication state between the waste liquid carrying shell and the external environment. During the ozone pressurization oxidation stage, the internal pressure of the shell is increased by reducing the opening, which promotes the increase of ozone solubility in wastewater. Preferably, the ozone dispersion disks are arranged in a multi-layered, stepped manner on the inner wall of the waste liquid carrying shell, and adjacent layers of ozone dispersion disks are fixedly connected by vertical supports to form a three-dimensional grid-like ozone release area, ensuring that the wastewater can fully contact ozone in both the vertical and horizontal directions; Preferably, the microbubble emitting holes are uniformly distributed in a honeycomb pattern on the surface of the ozone dispersion disk, and each microbubble emitting hole is provided with a corresponding dispersion net. The dispersion net is made of nanofibers and is used to cut ozone bubbles into microbubbles with a diameter of less than 100 micrometers, thereby prolonging the residence time of ozone in wastewater. Preferably, the treatment device further includes an intelligent control system. This system monitors the pressure, ozone concentration, and wastewater level inside the waste liquid carrying shell in real time through sensors, and automatically adjusts the opening and closing states of the first electromagnetic control valve, the second electromagnetic control valve, and the chamber connection regulating valve to realize an automated cycle treatment process of liquid inlet-pressurized oxidation-discharge.

[0005] Beneficial effects This invention provides a deep treatment device for oily wastewater. Compared with existing technologies, this deep treatment device for oily wastewater offers the following advantages: a three-dimensional grid-like ozone release structure enables multi-angle and multi-layer contact, combined with nanoscale microbubble cutting technology to refine ozone bubbles, significantly extending ozone retention time and improving utilization, thus completely solving the problems of "dead zones" and oil-encapsulated bubbles in traditional devices; a dynamic pressurization and sealing system intelligently controls valve core opening, significantly increasing ozone solubility under precise pressurization, enhancing oxidation and decomposition efficiency; and an intelligent closed-loop control system monitors pressure, concentration, and liquid level parameters in real time, automatically adjusting the entire process of liquid inlet, pressurization, and discharge, avoiding human error and ensuring stable effluent quality. The entire solution, from spatial distribution, bubble control, and pressure regulation to intelligent control, forms a closed-loop optimization, significantly improving COD removal rate and treatment efficiency while reducing energy consumption and operating costs. It provides a highly efficient, stable, and automated new solution for the deep treatment of oily wastewater, demonstrating significant technological advancement and practical application value. Attached Figure Description

[0006] Figure 1 This is a front sectional view of the advanced treatment device for oily wastewater according to the present invention.

[0007] Figure 2 This is a schematic diagram of the ozone dispersion disc structure of the deep treatment device for oily wastewater described in this utility model.

[0008] Figure 3 for Figure 1 A magnified view of the letter "A" in the diagram.

[0009] In the diagram: 1. Waste liquid carrying shell; 2. First electromagnetic control valve body; 3. Drainage pipe; 4. Second electromagnetic control valve body; 5. Inlet pipe; 6. Chamber connecting regulating valve body; 7. Ozone transport pipe body; 8. Branch transport pipe body; 9. Ozone dispersion disc; 10. Microbubble emitting hole; 11. Escape dispersion net. Detailed Implementation

[0010] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0011] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example

[0012] Please see Figure 1-3 Currently, the field of oily wastewater treatment faces the following technical bottlenecks, which urgently require breakthroughs through structural innovation and process optimization: The widespread dilemma of insufficient ozone oxidation efficiency Traditional ozone oxidation devices often employ single-point or planar ozone release structures, resulting in large ozone bubble diameters (typically >1mm), rapid rise speeds, and short residence times in wastewater (<30 seconds), leading to ozone utilization rates of less than 40%. In particular, oil particles in oily wastewater easily encapsulate the bubbles, forming an "air flotation barrier," further hindering effective contact between ozone and pollutants. This makes it difficult to achieve a COD (chemical oxygen demand) removal rate exceeding 60%, and also poses a risk of secondary pollution.

[0013] Structural defects in the pressure regulation and sealing system Existing treatment devices often employ a fixed valve opening design, making it impossible to dynamically adjust the shell pressure according to the reaction process. During the ozone pressurization oxidation stage, traditional devices, due to insufficient sealing performance or sluggish valve response, struggle to achieve precise pressurization control of 1.2-1.5 MPa, resulting in a limited increase in ozone solubility (only 20-30%). This fails to fully leverage the solubility-promoting effect of pressure, thus affecting the thoroughness of oil oxidative decomposition.

[0014] Technical shortcomings in spatial distribution and mixing uniformity Single-layer or non-three-dimensional ozone release components result in contact blind zones in the vertical / horizontal directions of wastewater. Experimental data shows that in traditional devices, ozone concentrations in approximately 30% of the wastewater area are below the effective threshold, forming a "reaction dead zone." Furthermore, the lack of a microbubble fine-cutting mechanism means that large bubbles are prone to bursting, generating turbulence that exacerbates the re-aggregation of oil particles, reducing treatment efficiency.

[0015] The lack of automation and intelligent control Most devices rely on manual operation of valve opening and closing, making it impossible to respond in real time to dynamic changes in key parameters such as pressure, ozone concentration, and liquid level. This "open-loop control" mode is prone to problems such as excessive liquid intake causing overflow, insufficient pressurization affecting the reaction, and premature discharge leading to incomplete treatment. This not only increases operating costs but also makes it difficult to guarantee the stability of the effluent quality.

[0016] This patent addresses the aforementioned technical pain points by achieving a breakthrough in both the efficiency and stability of oily wastewater treatment through the synergistic innovation of a three-dimensional grid-like ozone release structure, a dynamic pressurization and sealing system, nanoscale microbubble cutting technology, and an intelligent closed-loop control system, providing a brand-new technical solution for the field of deep treatment. Therefore, this application protects a deep treatment device for oily wastewater. First, oily wastewater is injected into the wastewater carrying housing 1 treatment container through the inlet pipe 5 and the second electromagnetic control valve 4. Once the injection volume reaches a suitable level, ozone gas is introduced into the ozone transport pipe 7. The ozone gas enters the multi-layered ozone dispersion disk 9 dispersed within the container through multiple branch transport pipes 8, and is then evenly injected into the oily wastewater through the dispersion net 11 and multiple microbubble emission holes 10. Utilizing the strong oxidizing properties of ozone, the oil in the wastewater is gradually oxidized and decomposed. Throughout the reaction process, the regulating valve 6 connects the housing to control whether the entire wastewater carrying housing 1 is in a closed state or connected to the outside environment. Furthermore, by continuously injecting ozone gas, the waste liquid carrying shell 1 is pressurized, promoting more thorough contact and mixing between ozone and wastewater (increased pressure leads to increased ozone gas dissolved in water). The three-dimensional distribution design of the multi-layer ozone dispersion discs 9 allows the submerged wastewater to contact ozone from multiple angles and at multiple levels, greatly improving reaction efficiency. The treated clean water is discharged through the first electromagnetic control valve 2 and finally through the drain pipe 3, completing the entire treatment process. The core advantage of this design lies in the efficient mixing reaction of wastewater and ozone achieved through the layered ozone dispersion discs 9 and the uniform ozone injection system, ensuring the thorough treatment of oily wastewater.

[0017] In summary, the overall operation process begins in the liquid inlet stage: the second electromagnetic control valve 4 precisely controls the injection of oily wastewater into the waste liquid carrying shell 1 via the liquid inlet pipe 5. The liquid level sensor monitors the water volume in real time and automatically closes the valve when it reaches the preset threshold to prevent over-injection. Entering the pressurized oxidation stage, the chamber is sealed by the regulating valve 6 via a flange sealing structure. The valve core opening is dynamically adjusted by the intelligent control system based on pressure sensor feedback, significantly increasing ozone solubility. At this time, ozone gas is introduced through the ozone transport pipe 7 and distributed to the multi-layered, stepped ozone dispersion discs 9 via branch transport pipes 8. Each dispersion disc has honeycomb-shaped microbubble emitting holes 10 on its surface, which, in conjunction with a nano-fiber dispersion net 11, cuts the ozone bubbles to micron-sized bubbles, forming a three-dimensional mesh-like microbubble release area. This allows the wastewater to fully contact ozone in both vertical and horizontal directions, extending the residence time to over 5 minutes and completely solving the problems of "reaction dead zones" and oil-encapsulated bubbles in traditional devices. During the oxidation and decomposition process, an ozone concentration sensor monitors and feeds back data to the intelligent control system in real time. This system uses a PLC control unit and an PID algorithm to automatically adjust the ozone supply, ensuring a continuous and efficient oxidation reaction. The final drainage stage is controlled by the first electromagnetic control valve 2. The treated clean water is discharged through the drainage pipe 3. A level sensor and a pressure sensor work together to monitor and prevent residual wastewater or pressure fluctuations from affecting the effluent quality. The entire system, through the synergistic effect of the electromagnetic control valve, intelligent sensors, nanoscale microbubble cutting components, and closed-loop control algorithm, achieves full automation of the inlet-pressurization-drainage process, providing an efficient, stable, and low-energy-consumption industrial solution for the deep treatment of oily wastewater.

[0018] 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 deep treatment device for oily wastewater, comprising: A waste liquid carrying shell, on which an oily wastewater treatment structure is installed, characterized in that the oily wastewater treatment structure includes: a first electromagnetic control valve body, which is installed on the waste liquid carrying shell and connected to a drain pipe; a second electromagnetic control valve body, which is connected to an inlet pipe; a chamber connection regulating valve body, which is installed on the waste liquid carrying shell; and an ozone transport pipe body, on which an ozone dissipation component is installed.

2. The deep treatment device for oily wastewater according to claim 1, characterized in that, The ozone emission assembly includes several branch delivery pipes, each branch delivery pipe being installed on an ozone transport pipe. Each branch delivery pipe is provided with several ozone dispersion discs, each ozone dispersion disc is provided with several microbubble emission holes, and each ozone dispersion disc is provided with an emission dispersion net.

3. The deep treatment device for oily wastewater according to claim 2, characterized in that, The silo body is connected to the waste liquid carrier shell by a flange seal. The valve core opening is adjustable to control the connection between the waste liquid carrier shell and the external environment. During the ozone pressurization oxidation stage, the opening is reduced to increase the internal pressure of the shell, thereby promoting the increase of ozone solubility in the wastewater.

4. The deep treatment device for oily wastewater according to claim 3, characterized in that, The ozone dispersion disks are arranged in a multi-layered, stepped manner on the inner wall of the waste liquid carrying shell. Adjacent layers of ozone dispersion disks are fixedly connected by vertical supports to form a three-dimensional grid-like ozone release area, ensuring that the wastewater can fully contact ozone in both the vertical and horizontal directions.

5. The deep treatment device for oily wastewater according to claim 4, characterized in that, The microbubble emitting pores are uniformly distributed in a honeycomb pattern on the surface of the ozone dispersion disk. Each microbubble emitting pore is equipped with a corresponding dispersion net, which is made of nanofibers and is used to cut ozone bubbles into microbubbles with a diameter of less than 100 micrometers, thereby prolonging the residence time of ozone in wastewater.

6. The deep treatment device for oily wastewater according to claim 5, characterized in that, The treatment device also includes an intelligent control system. This system monitors the pressure, ozone concentration and wastewater level inside the waste liquid carrying shell in real time through sensors, and automatically adjusts the opening and closing states of the first electromagnetic control valve, the second electromagnetic control valve and the chamber connection regulating valve to realize an automated cycle treatment process of liquid inlet-pressurized oxidation-discharge.

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