Environment-friendly centralized collection and regeneration system and method for waste emulsion

Abstract

The present application relates to a kind of waste emulsion environmental protection centralized collection and regeneration system and method, it relates to waste emulsion circulating treatment technical field, its system includes workshop emulsion application equipment, waste emulsion introduction pipeline, first valve, underground pipeline, workshop inner tank, waste emulsion regeneration component;Its method includes obtaining workshop emulsion application equipment number, obtains current emulsion detection parameter;Determine invalid emulsion application equipment number;Find first valve number, execute valve opening and closing operation;Control separation baffle to execute emulsion separation operation;Perform foam scraping operation;Current liquid height and second emulsion height are obtained, obtain detection port data to obtain second emulsion concentration, execute emulsion blending operation;Obtain workshop emulsion application equipment liquid supplement number sequence, and determine circulating valve number, control circulating valve number corresponding valve to execute valve opening and closing operation.The present application has the effect of waste emulsion centralized collection and recycling regeneration.

Description

Technical Field

[0001] This invention relates to the field of waste emulsion recycling technology, and in particular to an environmentally friendly centralized collection and treatment system and method for waste emulsion. Background Technology

[0002] Emulsions are widely used in the machining industry. In use, recycled emulsions serve to cool, prevent rust, clean, and lubricate, providing a certain degree of protection for the workpieces and equipment.

[0003] Currently, machining equipment has an independent emulsion circulation system. However, over time, due to factors such as temperature, high operating temperatures, microorganisms, and waste cutting slag, the emulsion begins to turn black, smell bad, and deteriorate. This not only fails to protect the workpieces and equipment but also negatively impacts the health of the workers. Therefore, the emulsion should be replaced at this point.

[0004] Regarding the aforementioned technologies, according to the relevant national waste list, waste emulsion is classified as hazardous waste. According to the requirements for hazardous waste management, waste emulsion should be disposed of by qualified enterprises to a certain standard before it can be discharged. Currently, the cost of treating waste emulsion is not low, and failure to discharge or dispose of it in accordance with the requirements will be severely punished by law. This has brought many inconveniences to enterprises using emulsion and has also had an adverse impact on the control of overall production costs. Summary of the Invention

[0005] In order to reduce the cost of hazardous waste disposal of waste emulsion and realize the recycling and reuse of waste emulsion, this invention provides an environmentally friendly centralized collection and regeneration system and method for waste emulsion.

[0006] In a first aspect, the present invention provides an environmentally friendly centralized collection and regeneration system for waste emulsions, employing the following technical solution: An environmentally friendly centralized collection and regeneration system for waste emulsion includes several workshop emulsion application devices, waste emulsion inlet pipes corresponding one-to-one with the workshop emulsion application devices, a first valve, underground pipelines, workshop tanks, and waste emulsion regeneration components. One end of the waste emulsion inlet pipe is connected to the waste outlet of the emulsion application equipment in the workshop, and the other end of the waste emulsion inlet pipe is connected to the underground pipeline; the first valve is installed on the waste emulsion inlet pipe, and the underground pipeline is connected to the tank inside the workshop. The inner tank of the workshop is equipped with a separation baffle, and the separation baffle is equipped with an emulsion outlet hole. The emulsion outlet hole is located below the liquid surface and above the bottom of the inner tank of the workshop. The emulsion outlet hole is connected to the waste emulsion regeneration component. The emulsion outlet hole is used to intercept the upper floating oil and the lower sediment in the inner tank of the workshop to obtain the first emulsion, which flows to the emulsion stirring and regeneration component.

[0007] By adopting the above technical solution, the spent emulsion generated during the use of the emulsion application equipment in the workshop can be collected through corresponding waste emulsion inlet pipes. When it is necessary to discharge the spent emulsion, the first valve set on the waste emulsion inlet pipe is opened, and the spent emulsion flows into the underground pipeline through the waste emulsion inlet pipe, and then flows into the workshop tank. In the workshop tank, the emulsion outlet hole set in the separation baffle is located below the liquid surface and above the bottom of the tank, which can initially intercept the floating oil layer at the top of the workshop tank and the sediment at the bottom, so that the relatively clean first emulsion in the middle layer can flow smoothly through the emulsion outlet hole to the waste emulsion regeneration component to perform the emulsion regeneration operation.

[0008] Optionally, the waste emulsion regeneration component includes an emulsion degreasing component, an emulsion blending component, an emulsion stirring and regeneration component, an air flotation circuit component, a regeneration conveying pipeline, a third valve, a fourth valve, a regeneration valve, and an additive component; The emulsion degreasing assembly includes an emulsion collection pipe, an emulsion centralized collection container, a second emulsion delivery pipe, an oil floating tank, and a second valve. One end of the emulsion collection pipe is connected to an emulsion outlet, and the other end of the emulsion collection pipe is connected to the emulsion centralized collection container. The bottom of the emulsion centralized collection container is provided with a slag discharge port for removing residues from the first emulsion to obtain the second emulsion. The emulsion centralized collection container is provided with a detection port, through which the concentration of the second emulsion and impurities can be detected. One end of the second emulsion conveying pipeline is connected to the emulsion collection container, and the other end of the second emulsion conveying pipeline is connected to the floating oil tank. The second valve is installed on the second emulsion conveying pipeline. The bottom of the oil flotation tank is equipped with a liquid extraction port. The regeneration conveying pipeline is equipped with a first branch and a second branch. One end of the regeneration conveying pipeline is connected to the liquid extraction port, and the other end of the regeneration conveying pipeline is connected to the emulsion stirring and regeneration component. The first branch is connected to the air flotation circuit component, and the second branch is connected to the emulsion fusion component. The third valve is located on the first branch, the fourth valve is located on the second branch, and the regeneration valve is located between the regeneration conveying pipeline and the second branch. The additive assembly includes an additive pipeline, an additive storage container, and an additive valve. The additive storage container is connected to the emulsion stirring and regeneration assembly through the additive pipeline, and the additive valve is located on the additive pipeline.

[0009] By adopting the above technical solution, after the first emulsion enters the emulsion collection container through the emulsion collection pipe, the slag discharge port at the bottom of the container can further discharge the fine residue remaining in the first emulsion, thereby obtaining a purer second emulsion. The detection port inside the emulsion collection container can monitor the concentration of the second emulsion in real time, providing data support for subsequent blending operations. When it is necessary to treat floating oil, the second valve on the second emulsion delivery pipe is opened, and the floating oil in the emulsion collection container enters the floating oil tank for temporary storage through the second emulsion delivery pipe. The suction port at the bottom of the floating oil tank is connected to the emulsion stirring and regeneration component through a regeneration delivery pipe. The first branch of the regeneration delivery pipe is connected to the air flotation circuit component. When the third valve is opened, the air flotation circuit component can perform pressurized dissolved air reflux circulation of the liquid in the floating oil tank to promote oil-water stratification; the second branch is connected to the emulsion fusion component. After the fourth valve is opened, the treated liquid can enter the emulsion fusion component for preliminary blending. A regeneration valve is installed between the regeneration delivery pipeline and the second branch to control the liquid flow rate entering the emulsion stirring and regeneration assembly. The additive storage container in the additive assembly is connected to the emulsion stirring and regeneration assembly via an additive pipeline, and the additive valve controls the amount of additive added, allowing for precise addition of the required additives based on the concentration of the second emulsion, thus achieving efficient emulsion regeneration.

[0010] Optionally, the air flotation circuit assembly includes a pressurized dissolved air tank, a high-pressure air pump, a first air supply pipeline, a second air supply pipeline, and an air supply valve; The first branch is connected to the pressurized dissolved gas tank, one end of the first gas transmission pipeline is connected to the pressurized dissolved gas tank, and the other end of the first gas transmission pipeline is connected to the high-pressure air pump. The high-pressure air pump uses air pressure to draw the second emulsion from the floating oil tank into the pressurized dissolved gas tank from the first branch. One end of the second gas transmission pipeline is connected to the floating oil tank, and the other end of the second gas transmission pipeline is connected to the pressurized dissolved gas tank. The gas transmission valve is installed on the second gas transmission pipeline and is used to reinject the dissolved second emulsion back into the floating oil tank to form air flotation separation. The oil flotation tank is equipped with a movable oil scraper that can move horizontally. The movable oil scraper is equipped with a third emulsion inlet hole. The movable oil scraper scrapes off the floating oil on the surface of the oil flotation tank to obtain the third emulsion. After the third emulsion in the oil flotation tank is separated from the floating oil and impurities by the air flotation circuit and the movable oil scraper, it flows out of the oil flotation tank and enters the emulsion fusion component.

[0011] By adopting the above technical solution, a high-pressure air pump injects high-pressure gas into the pressurized dissolved gas tank through the first gas delivery pipeline. Under the action of gas pressure, the second emulsion in the oil flotation tank is forced into the pressurized dissolved gas tank through the first branch. In the pressurized dissolved gas tank, the gas and the second emulsion are fully mixed and dissolved to form dissolved air water. The dissolved air water is reinjected into the oil flotation tank through the second gas delivery pipeline. When the pressure of the dissolved air water in the oil flotation tank drops sharply, the dissolved gas is rapidly released and forms a large number of microbubbles. These bubbles rise to the surface and adsorb small oil droplets and fine impurity particles suspended in the second emulsion, causing them to rise to the surface as well, thereby achieving efficient separation of oil, water, and impurities. The movable oil scraper installed in the oil flotation tank can move back and forth in the horizontal direction to scrape off the floating oil on the surface bubbles. After separation by the air flotation circuit and scraping by the moving scraper, the third emulsion, which has removed most of the floating oil and impurities from the oil flotation tank, can flow out of the oil flotation tank and enter the emulsion fusion component, preparing for the subsequent blending and regeneration steps.

[0012] Optionally, the emulsion fusion assembly includes an emulsion stock container, a deionized water container, a preparation container, a first fusion pipe, a first fusion valve, a first fusion branch, and a second fusion valve; One end of the first fusion pipe is connected to the emulsion stock container, and the other end of the first fusion pipe is connected to the preparation container. A first fusion branch is provided on the first fusion pipe, and the first fusion branch is connected to the deionized water container. The first fusion valve is provided on the first fusion pipe, and the second fusion valve is provided on the first fusion branch. The pure emulsion in the emulsion stock container and the deionized water in the deionized water container are mixed in proportion and then flow into the modulation container through the first fusion pipe to obtain the modulation emulsion. The modulation emulsion flows into the regeneration conveying pipe through the second branch. The emulsion stirring and regeneration assembly includes a regenerated emulsion storage container, a regeneration air pump, a regeneration pipeline, a sixth valve, a high-level tank, a supply pipeline, a supply valve, a new emulsion supply pipeline, a supply branch line, and a circulation valve; The end of the regenerated conveying pipeline away from the floating oil tank is connected to the regenerated emulsion storage container. One end of the supply pipeline is connected to the regenerated emulsion storage container, and the other end of the supply pipeline is connected to the high-level tank. The supply valve is located on the supply pipeline. One end of the new emulsion supply pipeline is connected to the high-level tank. The new emulsion supply pipeline has a number of supply branches, the number of which corresponds one-to-one with the emulsion application equipment in the workshop. One end of each supply branch is connected to the emulsion application equipment in the workshop, and the other end of each supply branch is connected to the new emulsion supply pipeline. The circulation valve is located on the supply branch. The regenerated emulsion storage container is equipped with an aeration and stirring pipe. One end of the regeneration pipe is connected to the aeration and stirring pipe, and the other end of the regeneration pipe is connected to the regeneration gas pump. The sixth valve is located on the regeneration pipe and is used to control the regeneration gas pump to introduce gas into the aeration and stirring pipe to stir the liquid in the regenerated emulsion storage container to obtain regenerated emulsion.

[0013] By adopting the above technical solution, the pure emulsion and the blended liquid enter the blending container together. The regeneration delivery pipeline transports the third emulsion from the floating oil tank and the blended emulsion from the emulsion fusion component to the regenerated emulsion storage container. An aeration and stirring pipe installed inside the regenerated emulsion storage container is connected to a regeneration air pump via a regeneration pipeline. The regeneration air pump pumps gas into the aeration and stirring pipe, which releases a large number of bubbles to stir the liquid in the regenerated emulsion storage container, ensuring uniform mixing of the third emulsion, the blended emulsion, and any added additives (via an additive component). This accelerates the regeneration reaction of the emulsion, ultimately forming the regenerated emulsion. The regenerated emulsion is then transported to an elevated tank. The elevated tank utilizes the pressure created by its height difference to transport the regenerated emulsion to the emulsion application equipment in various workshops.

[0014] Secondly, this invention provides an environmentally friendly centralized collection and regeneration method for waste emulsions, employing the following technical solution: A method for the environmentally friendly centralized collection and regeneration of waste emulsion, applied to the waste emulsion environmentally friendly centralized collection and regeneration system described above, includes: In response to the emulsion status acquisition signal, the equipment number of the emulsion application equipment in the workshop is obtained, and the current emulsion detection parameters corresponding to the equipment number of the emulsion application equipment in the workshop are obtained in real time through the automatic sampling detector; If the current emulsion detection parameters fall within the preset emulsion failure judgment range, determine the application equipment number of the failed emulsion; Find the first valve number corresponding to the application equipment number of the failed emulsion, and perform valve opening and closing operations based on the valve corresponding to the first valve number; In response to the start signal of the separation baffle, the separation baffle is controlled to perform emulsion separation operation; After performing the emulsion separation operation, perform the foam scraping operation; The current liquid height and the second emulsion height in the floating oil tank are obtained in real time. If the second emulsion height reaches the preset full liquid reference height of the floating oil tank, the detection port data is obtained to obtain the concentration of the second emulsion, and the emulsion mixing operation is performed based on the concentration of the second emulsion. After performing the emulsion blending operation, obtain the replenishment number sequence of the emulsion application equipment in the workshop, determine the circulation valve number corresponding to the replenishment number sequence of the emulsion application equipment in the workshop, and control the valve corresponding to the circulation valve number to perform valve opening and closing operations.

[0015] By adopting the above technical solution, the system locates the corresponding equipment through emulsion status acquisition signals and uses an automatic sampling detector to monitor multiple key parameters of the emulsion in real time, including water content, effective ingredient concentration, oil content, solid impurity content, appearance physical indicators, and functional additive concentration. When the current emulsion detection parameters fall within the emulsion failure judgment range, the system automatically identifies the failed equipment and controls the corresponding valve to introduce waste liquid. After preliminary impurity removal by the separation baffle and deep oil removal by the floating oil scraping device, the system automatically completes the precise blending of the original liquid, water, and additives based on the detected second emulsion concentration. After successful regeneration, the system controls the circulation valve to replenish the liquid according to the idle equipment sequence, realizing closed-loop regeneration and utilization of the emulsion, significantly reducing hazardous waste disposal costs and new liquid consumption.

[0016] Optionally, methods for controlling the separation baffle to perform emulsion separation operations include: The total volume of emulsion, sediment height, and oil layer thickness in the workshop tank are obtained in real time to determine the emulsion floating height. Obtain the height of the emulsion outlet hole corresponding to the separation baffle; The current height difference is determined based on the height of the emulsion outlet hole and the emulsion floating height; Determine the lifting parameters of the separation baffle based on the current height difference, and perform the lifting operation according to the lifting parameters of the separation baffle.

[0017] By employing the above technical solution, the total amount of emulsion in the workshop tank, the accumulation height of the bottom sediment, and the thickness of the upper floating oil layer are monitored to calculate the actual floating height range of the usable emulsion in the intermediate layer. Simultaneously, the current set height of the emulsion outlet hole on the separation baffle is obtained. The outlet hole height is compared with the calculated emulsion floating height to determine the current height difference. Based on this height difference, the lifting parameters of the separation baffle are generated, and the separation baffle is driven to lift and lower, ensuring that the emulsion outlet hole is always in the optimal position of the intermediate layer emulsion, thereby maximizing the interception of floating oil and sediment, and improving the purity and efficiency of the first emulsion outlet.

[0018] Optionally, methods for performing the foam scraping operation include: The height of the second emulsion is obtained based on the oil-water interface sensor, and a pressurized dissolved gas reflux circulation operation is performed. After performing the pressurized dissolved gas reflux circulation operation, the movement parameters of the waste oil foam lifting plate are determined by the height of the second emulsion. Perform the isolation lifting operation according to the movement parameters of the waste oil foam lifting plate; Find the preset foam scraping parameters and control the moving scraper to perform the foam scraping operation according to the foam scraping parameters.

[0019] By adopting the above technical solution, the system obtains the height of the second emulsion in the floating oil tank through an oil-water interface sensor, initiates pressurized dissolved gas reflux circulation, mixes the emulsion with gas to form dissolved gas water, and releases microbubbles after reinjection to adsorb floating oil and make it float to the surface, forming a clear oil-water stratification. Subsequently, the system calculates the movement parameters of the waste oil foam lifting plate based on the height of the second emulsion, controls it to isolate the floating oil from the emulsion, and then drives the moving oil scraper to repeatedly scrape off and collect the floating oil according to the oil scraping parameters, improving the purity of the second emulsion and providing high-quality raw materials for subsequent blending and regeneration.

[0020] Optionally, methods for performing emulsion blending operations include: Obtain the total amount of the third emulsion, and determine the effective working content ratio and effective working content of the emulsion based on the total amount of the third emulsion and the concentration of the second emulsion; The amount of pure emulsion, the amount of blended liquid, and the amount of additives are determined based on the effective working content ratio and the effective working content of the emulsion. The mixing valve is opened and closed based on the mixing amounts of the third emulsion, the pure emulsion, the mixing liquid, and the additives, and the uniform change rate of the emulsion concentration is obtained in real time. The gas delivery rate is determined in real time based on the uniform change rate of emulsion concentration, and the emulsion blending operation is performed according to the gas delivery rate.

[0021] By adopting the above technical solution, the total amount of the third emulsion entering the emulsion stirring and regeneration component is first counted. Combined with the concentration of the second emulsion obtained from the detection port, the proportion of effective components and the specific effective working content of the emulsion are calculated. Based on this, the required amount of pure emulsion, deionized water, and other blending liquids, as well as the precise dosage of various additives, are calculated. Subsequently, the opening and closing of relevant valves are controlled to introduce each material into the regeneration storage container. Simultaneously, the uniformity of the emulsion concentration change rate is monitored in real time, and the air pump output is dynamically adjusted. Through aeration and stirring, the components are thoroughly mixed to ensure that the regenerated emulsion meets performance standards and usage requirements.

[0022] Optionally, methods for obtaining the replenishment serial number of equipment used in workshop emulsion application include: The content of the emulsion in the workshop is determined based on the equipment number used in the emulsion application in the workshop; When the emulsion content in the workshop falls within the preset emulsion gap range, the working signal corresponding to the emulsion application equipment number in the workshop is obtained to determine the working status of the emulsion application equipment in the workshop. If the working status of the emulsion application equipment in the workshop is the preset cleaning state, determine the cleaning application equipment number; The current number of serial numbers is determined based on the cleaning application equipment serial number; If the current number of numbers is greater than 1, obtain the supply branch number corresponding to the cleaning application equipment number, and determine the cleaning application equipment number sequence based on the supply branch number and the cleaning application equipment number.

[0023] By adopting the above technical solution, the proportion and content of effective ingredients are calculated based on the total amount of the third emulsion and the concentration of the second emulsion, thereby determining the amount of pure emulsion, blended liquid, and various additives to be added. The system automatically controls the corresponding valves to feed materials into the regeneration container according to the ratio. During blending, the system monitors the concentration uniformity change rate in real time and dynamically adjusts the aeration rate and stirring intensity to ensure that all components are quickly and evenly mixed and the concentration is stable, completing the high-quality emulsion blending and regeneration, and ensuring that the performance of the regenerated liquid meets the standards.

[0024] Optionally, it also includes a method for performing an emulsion replenishment operation, the method comprising: Obtain the volume of the second emulsion corresponding to the centralized emulsion collection container; When there is no failed emulsion application equipment number and the volume of the second emulsion is less than the preset single regeneration liquid volume range, find the waiting time corresponding to the workshop emulsion application equipment number. If the waiting time exceeds the preset single emulsion regeneration time, determine the application equipment number and the first valve number of the failed emulsion, and control the valve corresponding to the first valve number to perform the emulsion replenishment operation.

[0025] By adopting the above technical solution, the volume of the second emulsion in the centralized emulsion collection container is monitored in real time. When there are no failed emulsion devices and the liquid volume is insufficient for a single regeneration, the system actively queries the waiting time of each device. If the waiting time of a device exceeds the single emulsion regeneration time, the system marks it as a device requiring replenishment and opens the corresponding valve to introduce emulsion to replenish the volume.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: 1. By identifying failed emulsions, and combining separation baffles, pressurized dissolved air flotation and moving oil scraper, multi-stage impurity and oil removal can be achieved. The closed-loop operation of collection, separation, oil removal, blending and reuse can be completed continuously, thereby improving the efficiency of emulsion regeneration. 2. Based on the effective component content of the emulsion, pure emulsion, blending liquid and additives are automatically proportioned, and the aeration and stirring intensity is dynamically adjusted by the concentration uniformity change rate to ensure that the regenerated emulsion has uniform concentration and meets the performance standards. It can be directly reused in production and stably meet the equipment cooling, cleaning and rust prevention requirements. 3. The on-site recycling of expired emulsions reduces the amount of hazardous waste discharged from waste emulsions and the disposal costs, while also reducing the amount of new emulsions purchased. This balances environmental compliance requirements with economic benefits and also prevents deteriorated emulsions from affecting the workshop environment and workers' health. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a waste emulsion environmental protection centralized collection and regeneration system in an embodiment of this application.

[0028] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Workshop emulsion application equipment; 2. Waste emulsion inlet pipe; 3. First valve; 4. Underground pipeline; 5. Workshop inner tank; 6. Waste emulsion regeneration component; 61. Emulsion degreasing component; 611. Emulsion collection pipe; 612. Emulsion centralized collection container; 613. Second emulsion conveying pipe; 614. Floating oil tank; 615. Second valve; 62. Air flotation circuit component; 621. Pressurized dissolved air tank; 622. High-pressure air pump; 623. First gas delivery pipe; 624. Second gas delivery pipe; 625. Gas delivery valve; 63. Emulsion fusion component; 631. Emulsion concentrate container; 632. Deionized water container; 633. Mixing container; 634. First fusion pipeline; 635. First fusion valve; 636. First fusion branch; 637. Second fusion valve; 64. Emulsion stirring and regeneration assembly; 641. Regenerated emulsion storage container; 642. Regeneration air pump; 643. Regeneration pipeline; 644. Sixth valve; 645. Supply pipeline; 646. Supply valve; 647. High-level tank; 648. New emulsion supply pipeline; 649. Supply branch; 6490. Circulation valve; 65. Regeneration conveying pipeline; 651. First branch; 652. Second branch; 653. Third valve; 654. Fourth valve; 66. Regeneration valve; 67. Additive assembly; 671. Additive pipeline; 672. Additive storage container; 673. Additive valve. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] This invention discloses an environmentally friendly centralized collection and regeneration method for waste emulsions. The method includes: Step S1: In response to the emulsion status acquisition signal, obtain the emulsion application equipment number in the workshop, and obtain the current emulsion detection parameters corresponding to the emulsion application equipment number in real time through the automatic sampling detector.

[0031] This method is applied to an environmentally friendly centralized collection and recycling system for waste emulsions, referring to... Figure 1 An environmentally friendly centralized collection and regeneration system for waste emulsion includes workshop emulsion application equipment 1, waste emulsion inlet pipe 2, first valve 3, underground pipeline 4, workshop inner tank 5, and waste emulsion regeneration component 6.

[0032] Each workshop emulsion application device 1 is equipped with a waste emulsion inlet pipe 2. The workshop emulsion application device 1 has a waste liquid outlet. One end of the waste emulsion inlet pipe 2 is connected to the waste liquid outlet, and the other end is connected to an underground pipeline 4. The underground pipeline 4 is connected to the workshop inner tank 5. A first valve 3 is installed on the waste emulsion inlet pipe 2 to control the flow of emulsion from the workshop emulsion application device 1 into the underground pipeline 4 and then into the workshop inner tank 5. The workshop inner tank 5 is equipped with a vertically adjustable separation baffle, which has an emulsion outlet hole. The emulsion outlet hole intercepts the upper layer of floating oil and the lower layer of sediment formed by the waste emulsion in the workshop inner tank 5. The emulsion filtered by the separation baffle is defined as the first emulsion, which flows into the waste emulsion regeneration component 6 through the emulsion outlet hole. The first emulsion refers to the clear liquid in the middle layer that flows out of the emulsion outlet after being initially separated by a vertically lifting separation baffle in tank 5 of the workshop, intercepting the upper floating oil and the lower sediment.

[0033] The waste emulsion regeneration component 6 consists of an emulsion degreasing component 61, an air flotation circuit component 62, an emulsion fusion component 63, an emulsion stirring and regeneration component 64, a regeneration conveying pipeline 65, a third valve 653, a fourth valve 654, a regeneration valve 66, and an additive component 67.

[0034] The emulsion degreasing component 61 includes an emulsion collection pipe 611, an emulsion centralized collection container 612, a second emulsion conveying pipe 613, an oil floating tank 614, and a second valve 615. One end of the emulsion collection pipe 611 is connected to an emulsion outlet, and the other end is connected to the emulsion centralized collection container 612. The emulsion centralized collection container 612 has a slag discharge port at its bottom, used to discharge residue from the first emulsion. After the residue is discharged, a second emulsion is obtained. The second emulsion refers to the further clarified emulsion obtained after the first emulsion enters the emulsion centralized collection container 612 and the residual residue is discharged through the bottom slag discharge port.

[0035] An internal detection port is provided in the emulsion collection container 612 to detect the concentration, temperature, effective substance content, microbial species and density, water content, and appearance conditions such as odor and color of the second emulsion. One end of the second emulsion delivery pipe 613 is connected to the emulsion collection container 612, and the other end is connected to the oil spill containment tank 614. A second valve 615 is installed on the second emulsion delivery pipe 613 to control the flow of the second emulsion from the emulsion collection container 612 into the oil spill containment tank 614.

[0036] An extraction port is located at the bottom of the oil flotation tank 614. One end of the regeneration delivery pipe 65 is connected to the extraction port, and the other end is connected to the emulsion stirring and regeneration assembly 64. The regeneration delivery pipe 65 branches into a first branch 651 and a second branch 652. The first branch 651 connects to the air flotation loop assembly 62, and the second branch 652 connects to the emulsion fusion assembly 63. A third valve 653 is installed on the first branch 651 to control the flow of the second emulsion from the oil flotation tank 614 into the air flotation loop assembly 62.

[0037] The air flotation circuit assembly 62 includes a pressurized dissolved air tank 621, a high-pressure air pump 622, a first air supply pipe 623, a second air supply pipe 624, and an air supply valve 625. A first branch 651 is connected to the pressurized dissolved air tank 621. One end of the first air supply pipe 623 is connected to the pressurized dissolved air tank 621, and the other end is connected to the high-pressure air pump 622. Driven by air pressure, the high-pressure air pump 622 delivers the second emulsion from the floating oil tank 614 into the pressurized dissolved air tank 621 via the first branch 651. When the second emulsion flows into the pressurized dissolved air tank 621, the third valve 653 is closed, and the air pump is controlled to inject gas into the pressurized dissolved air tank 621. One end of the second air supply pipe 624 is connected to the floating oil tank 614, and the other end is connected to the pressurized dissolved air tank 621. The air supply valve 625 is installed on the second air supply pipe 624. After dissolved air treatment, the second emulsion is reinjected into the oil flotation tank 614 via the second gas supply pipe 624 under the control of the gas supply valve 625, forming an air flotation separation effect. The oil flotation tank 614 includes an oil flotation tank, a waste oil froth lifting plate, a movable oil skimmer, and a waste oil froth collection tank. A waste oil froth lifting plate is installed between the oil flotation tank and the waste oil froth collection tank. The waste oil froth lifting plate can move vertically to prevent the second emulsion from flowing into the waste oil froth collection tank. The movable oil skimmer is located in the oil flotation tank and can move back and forth horizontally. The surface of the movable oil skimmer has a third emulsion inlet hole. The third emulsion inlet hole is located slightly below the oil skimmer and is aligned with the clean emulsion layer below the floating oil. It is used to allow the emulsion obtained after scraping off the floating oil on the surface of the second emulsion to pass smoothly through the oil skimmer, while preventing the upper floating oil from flowing out with the emulsion. It can scrape the floating oil on the surface of the oil flotation tank 614 into the waste oil froth collection tank. The waste oil scum collection tank is equipped with an oil drain pipe connected to external sewage discharge equipment to drain the floating oil in the tank. The second emulsion, after air flotation separation and oil removal by a scraper, forms a third emulsion, which flows out of the floating oil tank 614 and enters the emulsion stirring and regeneration component 64. The third emulsion refers to the clean emulsion obtained after the second emulsion undergoes pressurized dissolved air flotation separation and oil removal by a moving scraper in the floating oil tank, removing free impurities.

[0038] The emulsion blending assembly 63 includes an emulsion stock container 631, a deionized water container 632, a mixing container 633, a first blending conduit 634, a first blending valve 635, a first blending branch 636, and a second blending valve 637. One end of the first blending conduit 634 is connected to the emulsion stock container 631, and the other end is connected to the mixing container 633. The first blending valve 635 is installed on the first blending conduit 634 to control the flow of pure emulsion from the emulsion stock container 631 into the mixing container 633. A first blending branch 636 branches off from the first blending conduit 634 and is connected to the deionized water container 632. The second blending valve 637 is installed on the first blending branch 636 and controls the flow of the blended liquid from the deionized water container 632 into the first blending branch 636. The system can adjust the ratio of pure emulsion and blending liquid according to the concentration and water content of the second emulsion obtained from the detection port to obtain a modulated emulsion (modulated emulsion refers to the emulsion after mixing and blending after adjusting the input ratio of pure emulsion in the emulsion stock container and blending liquid in the deionized water container). The higher the water content, the greater the input of pure emulsion; the lower the water content, the greater the input of blending liquid. Here, the blending liquid is deionized water or pure water. Deionized water is used in areas with high hard water to remove calcium and magnesium ions from the water, preventing system failure caused by high concentrations of calcium and magnesium ions. The fourth valve 654 is installed on the second branch 652 to control the flow of the modulated emulsion into the regeneration delivery pipeline 65 to merge with the third emulsion. The regeneration valve 66 is installed between the regeneration delivery pipeline 65 and the interface between the second branch 652 and the regeneration delivery pipeline 65 to control the flow of the third emulsion into the emulsion stirring and regeneration assembly 64.

[0039] The additive assembly 67 includes an additive pipeline 671, an additive storage container 672, and an additive valve 673. The additive storage container 672 is connected to the emulsion stirring and regeneration assembly 64 via the additive pipeline 671. The additive valve 673 is installed on the additive pipeline 671 and is used to control the flow of the additive in the additive storage container 672 into the emulsion stirring and regeneration assembly 64.

[0040] The emulsion stirring and regeneration assembly 64 includes a regenerated emulsion storage container 641, a regeneration air pump 642, a regeneration pipeline 643, a sixth valve 644, an elevated tank 647, a supply pipeline 645, a supply valve 646, a new emulsion supply pipeline 648, a supply branch line 649, and a circulation valve 6490. An aeration stirring pipe is installed inside the regenerated emulsion storage container 641.

[0041] One end of the regeneration delivery pipeline 65, away from the floating oil tank 614, is connected to the regenerated emulsion storage container 641. One end of the additive pipeline 671 is connected to the regenerated emulsion storage container 641, and the other end is connected to the additive storage container 672.

[0042] One end of the regeneration pipe 643 is connected to the aeration and stirring pipe, and the other end is connected to the regeneration gas pump 642. A sixth valve 644 is installed on the regeneration pipe 643 to guide the gas output from the regeneration gas pump 642 into the aeration and stirring pipe, achieving aeration and stirring to ensure uniform mixing of the additives, the third emulsion, and the prepared emulsion, thus obtaining a regenerated emulsion. The regenerated emulsion refers to the emulsion that, after the third emulsion and the prepared emulsion are combined, is mixed with the additives and aerated and stirred uniformly in the emulsion stirring and regeneration component, ultimately becoming a qualified regenerated emulsion that can be resupplyed to the equipment. One end of the supply pipe 645 is connected to the regenerated emulsion storage container 641, and the other end is connected to the high-level tank 647. A supply valve 646 is installed on the supply pipe 645 to control the flow of the regenerated emulsion into the high-level tank 647. One end of the new emulsion supply pipe 648 is connected to the high-level tank 647. Multiple supply branches 649 are installed on the new emulsion supply pipe 648. The number of supply branch lines 649 corresponds one-to-one with the number of emulsion application equipment 1 in the workshop. One end of each supply branch line 649 is connected to the corresponding emulsion application equipment 1 in the workshop, and the other end is connected to the new emulsion supply pipeline 648. A circulation valve 6490 is installed on the supply branch line 649 to control the flow of regenerated emulsion into the emulsion application equipment 1 in the workshop as needed.

[0043] The emulsion status acquisition signal refers to the signal triggered by the system to initiate online monitoring of the emulsion status. This signal is generated by the equipment operation timing signal and is used to drive the sensor to collect relevant parameters of the emulsion. The equipment operation timing signal is an automatic timing completion signal generated by the workshop emulsion application equipment 1 after each metal cleaning process (reaching the preset cleaning time). The cleaning time refers to the preset standard operating time for the workshop emulsion application equipment 1 to complete one complete metal cleaning process.

[0044] The workshop emulsion application equipment number refers to the unique identification code assigned by the system to each workshop emulsion application equipment 1, which is used to distinguish the emulsion status, pipeline location and corresponding control valve of different equipment.

[0045] The current emulsion detection parameters refer to the physical properties of the emulsion in the workshop emulsion application equipment 1, measured in real time by an automatic sampling detector, including water content, effective raw material concentration, oil concentration, and solid impurity concentration. When the effective raw material concentration of the emulsion used for cleaning metal decreases, the oil content, solid impurity concentration, and water content of the emulsion will gradually increase. When any of these indicators falls within the emulsion failure judgment range, the system automatically triggers the waste emulsion collection and regeneration process.

[0046] Step S2: If the current emulsion detection parameters fall within the preset emulsion failure judgment range, determine the application equipment number of the failed emulsion.

[0047] The emulsion failure judgment range refers to the parameter threshold range that is pre-calibrated and set in accordance with the requirements of the metal processing and cleaning process in the workshop. It includes the minimum critical limit of the effective original concentration of the emulsion, the maximum critical limit of the oil concentration of the emulsion, the maximum critical limit of the solid impurity concentration, and the maximum critical limit of the water content of the emulsion. As long as any of the above detection parameters exceeds the corresponding limit range, it can be determined that the performance of the emulsion used in the equipment has deteriorated and its cleaning and protection capabilities have been lost, thus meeting the emulsion failure judgment conditions.

[0048] The failed emulsion application equipment number refers to the unique identification code corresponding to workshop emulsion application equipment 1 whose current emulsion detection parameters have reached the failure standard and is judged to be an emulsion failure.

[0049] If the current emulsion detection parameters fall within the emulsion failure judgment range, it indicates that the emulsion in the emulsion application equipment 1 in the workshop corresponding to this number is severely contaminated, its performance has deteriorated, and it cannot continue to be used normally. It needs to be discharged and enter the regeneration process.

[0050] Step S3: Locate the first valve number corresponding to the application equipment number of the failed emulsion, and perform valve opening and closing operations based on the valve corresponding to the first valve number.

[0051] The first valve number refers to the unique control number assigned by the system to the first valve 3 on each waste emulsion inlet pipe 2, which corresponds one-to-one with the emulsion application equipment number in the workshop.

[0052] The valve opening and closing operation refers to the system controlling the corresponding first valve 3 to open according to the first valve number, so that the emulsion of the workshop emulsion application equipment 1 corresponding to the failed emulsion application equipment number flows into the underground pipeline 4 and enters the workshop inner tank 5.

[0053] Step S4: In response to the start signal of the separation baffle, control the separation baffle to perform emulsion separation operation.

[0054] The separation baffle activation signal is a control signal triggered by the system after the failed emulsion flows into the workshop tank 5, which is used to activate the vertically lifting separation baffle to perform separation work.

[0055] Emulsion separation operation refers to the operation in which a vertically adjustable separation baffle automatically adjusts its height according to the liquid level, sediment height and floating oil thickness, so that the emulsion outlet is in the middle clear liquid area, intercepting the upper floating oil and the lower sediment, realizing the initial separation of solid and liquid and oil to obtain the first emulsion.

[0056] Step S5: After performing the emulsion separation operation, perform the foam scraping operation.

[0057] After the emulsion separation operation is performed, it indicates that the initial sedimentation and stratification of tank 5 in the workshop have been completed, and the upper layer of floating oil and the lower layer of sludge are effectively blocked. The first emulsion can then enter the emulsion collection container 612 from tank 5 through the emulsion collection pipe 611. The residue in the first emulsion is further discharged through the sludge discharge port in the emulsion collection container 612 to obtain the second emulsion. The concentration of the second emulsion is detected through the detection port in the emulsion collection container 612. Finally, the second valve 615 is opened to control the second emulsion to flow into the floating oil tank 614 through the second emulsion delivery pipe 613 to perform the foam scraping operation. The condition for controlling the second valve 615 to flow the second emulsion from the emulsion collection container 612 into the floating oil tank 614 is that the sedimentation time of the second emulsion in the emulsion collection container 612 reaches the preset effective sedimentation time.

[0058] The effective sedimentation time refers to the preset time for the second emulsion to settle in the emulsion collection container 612, which is used to allow residual fine impurities to settle to the bottom.

[0059] The foam scraping operation refers to the reciprocating horizontal movement of the moving oil scraper in the oil flotation tank 614 combined with the isolation and lifting operation performed by the waste oil foam lifting plate. This pushes the floating oil and oil foam that have been separated by air flotation onto the liquid surface to the waste oil foam collection tank, while simultaneously allowing the lower layer of clean emulsion to flow normally through the third emulsion inlet hole, thus achieving complete separation of the floating oil and emulsion. The specific method for controlling the waste oil foam lifting plate to perform the isolation and lifting operation will be introduced in subsequent sections.

[0060] Step S6: Real-time acquisition of the current liquid height and the second emulsion height in the floating oil tank 614. If the current liquid height is equal to the second emulsion height, acquire the detection port data to obtain the second emulsion concentration, and perform emulsion blending operation based on the second emulsion concentration.

[0061] The current liquid height refers to the actual total height of the liquid (including the second emulsion and floating oil) in the oil floating tank 614, which is detected in real time and is collected in real time by the liquid level sensor on the oil floating tank 614. The second emulsion height refers to the height of the oil-liquid interface between the second emulsion and the upper floating oil in the oil floating tank 614, which is detected in real time by the oil-water interface sensor and is the height of the clean emulsion area in the oil floating tank 614.

[0062] The detection port data refers to the real-time collection of relevant parameters of the second emulsion from the detection port in the emulsion collection container 612. The core parameters include the concentration, temperature, and water content of the second emulsion, while also covering the content of effective substances, types and densities of microorganisms, odor, color, and other appearance data.

[0063] The second emulsion concentration refers to the percentage of effective emulsified oil components in the second emulsion by its total mass or volume. It is calculated from data collected at the detection port and is used to characterize the content of the effective working components in the second emulsion. The oil float in the tank is now the third emulsion, and its effective component content is consistent with that of the second emulsion measured at the detection port. The floating oil only affects the liquid level and does not change the effective component concentration; therefore, the second emulsion concentration can be directly used as the basis for blending.

[0064] The emulsion blending operation refers to the operation in which the system adjusts the input ratio of the pure emulsion in the emulsion stock container 631 and the blending liquid (deionized water or pure water) in the deionized water container 632 based on the second emulsion concentration collected by the detection port, and mixes the gas by introducing gas into the regenerated emulsion storage container 641 through the regeneration gas pump 642 to obtain a blended emulsion that meets the usage standards.

[0065] If the current liquid height is equal to the height of the second emulsion, it means that the floating oil in the second emulsion in the oil floating tank 614 has been completely removed by the air flotation separation and the scraping operation of the moving oil scraper. Only the clean third emulsion remains in the oil floating tank 614, and the liquid level has reached a stable state. At this time, the emulsion mixing operation can be performed according to the concentration of the second emulsion measured by the detection port.

[0066] Step S7: After performing the emulsion blending operation, obtain the replenishment number sequence of the emulsion application equipment in the workshop, determine the circulation valve number corresponding to the replenishment number sequence of the emulsion application equipment in the workshop, and control the valve corresponding to the circulation valve number to perform valve opening and closing operations.

[0067] The workshop emulsion application equipment replenishment sequence refers to the sequence obtained by prioritizing workshop emulsion application equipment 1 that has exhausted its emulsion or needs to be replenished with regenerated emulsion and can receive regenerated emulsion. The specific method for prioritizing will be introduced later.

[0068] The circulating valve number refers to the unique control number assigned by the system to each circulating valve 6490 on each supply branch, corresponding one-to-one with each device in the replenishment sequence of emulsion application equipment in the workshop.

[0069] After the emulsion mixing operation is performed, it indicates that the third emulsion and the prepared emulsion have been mixed according to the concentration ratio, and the content of the effective components of the emulsion has been restored to the qualified usage range. The system can then start to prepare and transport the regenerated emulsion to the emulsion application equipment 1 in the workshop where the emulsion is insufficient.

[0070] The method for controlling the separation baffle to perform emulsion separation operation includes: Step S40: Real-time acquisition of the total emulsion volume, sediment height, and floating oil layer thickness corresponding to tank 5 in the workshop to determine the emulsion floating height.

[0071] The total emulsion volume refers to the total volume of failed emulsion flowing into tank 5 in the workshop, which is calculated by converting the liquid level sensor with the tank volume.

[0072] The sediment height refers to the thickness of the sediment layer formed at the bottom of the inner tank 5 of the workshop after static settling, including metal scraps, impurities, etc. The distance sensor is installed above the inner tank 5 of the workshop. The distance from the sensor to the upper surface of the sediment is detected by emitting sound waves or light waves. The sediment layer thickness is then calculated based on the preset distance between the distance sensor and the bottom of the inner tank 5 of the workshop.

[0073] The thickness of the floating oil layer refers to the vertical thickness of the free floating oil layer formed after the emulsion in tank 5 of the workshop has naturally stratified, which is detected by the oil-water interface sensor.

[0074] The emulsion floating height refers to the liquid level of the clean emulsion layer in the middle after removing the bottom sediment and the upper floating oil in tank 5 of the workshop.

[0075] Step S41: Obtain the height of the emulsion outlet hole corresponding to the separation baffle.

[0076] The height of the emulsion outlet hole refers to the vertical height of the center or lower edge of the emulsion outlet hole on the separation baffle relative to the bottom of the tank 5 in the workshop.

[0077] Step S42: Determine the current height difference based on the height of the emulsion outlet hole and the emulsion floating height.

[0078] The current height difference refers to the vertical difference between the emulsion floating height and the emulsion outlet height, which is used to determine whether the separation baffle needs to be adjusted in height.

[0079] Step S43: Determine the lifting parameters of the separation baffle based on the current height difference, and perform the lifting operation according to the lifting parameters of the separation baffle.

[0080] The lifting parameters of the separation baffle refer to the lifting direction and lifting distance of the separation baffle calculated based on the current height difference.

[0081] The lifting operation refers to the action of the drive mechanism driving the vertically lifting separation baffle to move up or down according to the lifting parameters of the separation baffle, so that the emulsion outlet hole is aligned with the middle layer of clean emulsion area.

[0082] The methods for performing foam scraping operations include: Step S50: Obtain the height of the second emulsion based on the oil-water interface sensor, and perform a pressurized dissolved gas reflux circulation operation.

[0083] The pressurized dissolved gas reflux circulation operation refers to starting the high-pressure air pump 622 and the pressurized dissolved gas tank 621, pumping the second emulsion in the floating oil tank 614 into the pressurized dissolved gas tank 621 for pressurized dissolved gas, and then reinjecting the dissolved emulsion back into the floating oil tank 614 through the second air transmission pipe 624 to form a continuous circulation, so that uniform fine bubbles are generated in the emulsion and carry the floating oil to the surface of the liquid.

[0084] Step S51: After performing the pressurized dissolved gas reflux circulation operation, determine the movement parameters of the waste oil foam lifting plate by the height of the second emulsion.

[0085] The movement parameters of the waste oil foam lifting plate refer to the lifting direction, lifting distance and target height of the waste oil foam lifting plate calculated based on the height of the second emulsion. These parameters are used to ensure that the lower edge of the lifting plate is below the height of the second emulsion, so as to block only the emulsion and not the floating oil.

[0086] After the pressurized dissolved air reflux circulation operation is performed, it indicates that the floating oil in the oil flotation tank 614 has fully floated to the surface under the action of microbubbles, and the oil-liquid interface is stable and clear, allowing for adjustment of the position of the waste oil foam lifting plate. Before the pressurized dissolved air reflux circulation operation, the height of the upper edge of the waste oil foam lifting plate is level with the top of the oil flotation tank.

[0087] Step S52: Perform the isolation lifting operation according to the movement parameters of the waste oil foam lifting plate.

[0088] The isolation lifting operation refers to the action of driving the waste oil foam lifting plate to move vertically up or down according to the movement parameters, so that the lower edge of the lifting plate is kept below the height of the second emulsion, which prevents the lower layer of the second emulsion from flowing into the waste oil foam collection tank, while not obstructing the passage of the upper layer of floating oil.

[0089] Step S53: Find the preset foam scraping parameters and control the moving scraper to perform foam scraping operation according to the foam scraping parameters.

[0090] Foam scraping parameters refer to the pre-set operating speed, reciprocating stroke, and scraping frequency of the moving scraper blade, which are used to regulate the horizontal movement trajectory and rhythm of the moving scraper blade.

[0091] The foam scraping operation refers to the reciprocating motion of the moving oil scraper along the horizontal direction according to the foam scraping parameters, pushing the floating oil and oil foam accumulated on the surface of the floating oil tank 614 to the waste oil foam collection tank, while allowing the lower layer of clean emulsion to flow normally through the third emulsion inlet hole, thus completing the separation of floating oil and emulsion.

[0092] The methods for performing emulsion blending operations include: Step S60: Obtain the total amount of the third emulsion, and determine the effective working content ratio and effective working content of the emulsion based on the total amount of the third emulsion and the concentration of the second emulsion.

[0093] The total volume of the third emulsion refers to the total volume of the third emulsion obtained after oil removal in the oil floating tank 614, which is calculated by combining the liquid level sensor in the oil floating tank 614 with the tank volume.

[0094] The effective working content ratio of the emulsion refers to the proportion of the volume of the effective emulsified oil component in the second emulsion to the total mass or volume of the second emulsion, as obtained through the detection port. Its value is consistent with the effective working content ratio of the third emulsion and is not affected by the floating oil removal process.

[0095] The effective working content of the emulsion refers to the total mass or volume of the effective emulsified oil components actually contained in the third emulsion, which is calculated by multiplying the total amount of the third emulsion by the ratio of the effective working content of the emulsion.

[0096] Step S61: Determine the amount of pure emulsion to be blended, the amount of blended liquid to be blended, and the amount of additives to be blended based on the effective working content ratio and the effective working content of the emulsion.

[0097] The amount of pure emulsion to be mixed refers to the mass or volume of high-concentration pure emulsion that needs to be added to the regenerated emulsion storage container 641 to adjust the regenerated emulsion to the target usage concentration. The target usage concentration refers to the standard concentration value of the effective emulsified oil component in the regenerated emulsion that is preset to meet the requirements of the metal cleaning process of the emulsion application equipment 1 in the workshop.

[0098] The amount of liquid to be added refers to the mass or volume of deionized or purified water required to match the target concentration, used to dilute and adjust the overall concentration of the emulsion.

[0099] The amount of additives to be added refers to the standard amount of functional additives such as bactericides, rust inhibitors, and stabilizers that need to be added based on the total amount of regenerated emulsion.

[0100] Step S62: Based on the mixing amounts of the third emulsion, the pure emulsion, the mixing liquid, and the additives, perform the opening and closing operation of the mixing valve, and obtain the uniform change rate of the emulsion concentration in real time.

[0101] The operation of the blending valves refers to the actions of controlling the opening or closing of the regeneration valve 66, the first fusion valve 635, the second fusion valve 637 and the fourth valve 654 respectively, in order to add the third emulsion, the pure emulsion, the blending liquid and the additives.

[0102] The uniformity change rate of emulsion concentration refers to the fluctuation range of the emulsion concentration of the third emulsion in the regenerated emulsion storage container 641 per unit time, which is used to characterize the degree of mixing uniformity.

[0103] Step S63: Determine the gas delivery rate in real time based on the uniform change rate of emulsion concentration, and perform emulsion blending operation according to the gas delivery rate.

[0104] The gas delivery rate refers to the flow rate of gas introduced by the regeneration gas pump 642 into the regenerated emulsion storage container 641 through the aeration and stirring pipe. It is adjusted in real time according to the uniform change rate of the emulsion concentration to control the stirring intensity and mixing effect.

[0105] The methods for obtaining the replenishment serial number sequence of equipment used in workshop emulsion application include: Step S70: Determine the emulsion content in the workshop based on the equipment number used for emulsion application in the workshop.

[0106] The emulsion content in the workshop refers to the volume or level of emulsion currently remaining inside workshop emulsion application equipment 1, corresponding to the workshop emulsion application equipment number.

[0107] Step S71: When the emulsion content in the workshop falls within the preset emulsion shortage range, obtain the working signal corresponding to the emulsion application equipment number in the workshop to determine the working status of the emulsion application equipment in the workshop.

[0108] The emulsion shortage range refers to the liquid level or volume range in the emulsion application equipment 1 in the workshop where the emulsion is insufficient and needs to be replenished in time. This range is preset by the system.

[0109] The working signal refers to the status signal uploaded by the emulsion application equipment 1 in the workshop, which reflects whether it is currently in operation or standby state.

[0110] The working status of the emulsion application equipment refers to the state in which the emulsion application equipment 1 in the workshop is performing, specifically including the cleaning state in which metal cleaning is being performed, the standby idle state, and the shutdown state.

[0111] Step S72: If the working state of the emulsion application equipment in the workshop is the preset cleaning state, determine the cleaning application equipment number.

[0112] The cleaning status refers to the state in which the equipment is performing metal cleaning operations and needs to be replenished first to ensure processing.

[0113] The cleaning application equipment number refers to the equipment number that is currently in the cleaning state and has insufficient emulsion content, requiring replenishment of regenerated emulsion.

[0114] Step S73: Determine the current number of the cleaning application equipment based on the equipment number.

[0115] The current number refers to the total number of devices that are simultaneously in the cleaning state and require replenishment of emulsion.

[0116] Step S74: If the current number of numbers is greater than 1, obtain the supply branch number corresponding to the cleaning application equipment number, and determine the cleaning application equipment number sequence based on the supply branch number and the cleaning application equipment number.

[0117] The supply branch number refers to the number assigned by the system to each supply branch 649 leading to the equipment. The numbering order is arranged from the nearest to the farthest from the high-level tank 647.

[0118] The cleaning application equipment number sequence refers to the priority sequence of replenishment formed by sorting the cleaning equipment that needs replenishment according to the order of distance from the supply branch 649 to the high-level tank 647 from near to far.

[0119] If the current number is greater than 1, it means that multiple workshop emulsion application equipment 1 that are being cleaned at the same time need to be replenished with emulsion. They need to be replenished in order from the nearest to the farthest from the high-level tank 647.

[0120] This also includes a method for performing an emulsion replenishment operation, the method comprising: Step S8: Obtain the volume of the second emulsion corresponding to the emulsion collection container 612.

[0121] The second emulsion volume refers to the actual volume of the second emulsion currently stored in the emulsion collection container 612 after preliminary slag removal.

[0122] Step S9: When there is no failed emulsion application equipment number and the volume of the second emulsion is less than the preset single regeneration liquid volume range, find the waiting time corresponding to the workshop emulsion application equipment number.

[0123] The single-cycle regeneration liquid volume range refers to the second emulsion volume range that is pre-set in order to ensure the emulsion regeneration efficiency, and is transported from the emulsion collection container 612 to the floating oil tank 614 in a single cycle.

[0124] When there is no failed emulsion application equipment number and the volume of the second emulsion is less than the single regeneration liquid volume range, it means that there is currently no failed equipment that urgently needs to replenish the liquid, and the second emulsion in the emulsion collection container 612 has not reached the batch regeneration conditions. The system needs to find the waiting time of the workshop emulsion application equipment number to determine the workshop emulsion application equipment 1 that can replenish the second emulsion.

[0125] The waiting time refers to the waiting time required for workshop emulsion application equipment 1, corresponding to the workshop emulsion application equipment number, to perform the next metal cleaning operation. This is obtained by parsing the work queue information corresponding to the workshop emulsion application equipment number. The work queue adopts the queue form in the C language data structure, and its characteristic is that the data in the queue is first-in-first-out (FIFO). The current work information and future work information corresponding to the workshop emulsion application equipment number can be obtained from the work queue information.

[0126] Step S90: If the waiting time is longer than the preset single emulsion regeneration time, determine the application equipment number and the first valve number of the failed emulsion, and control the valve corresponding to the first valve number to perform the emulsion replenishment operation.

[0127] The single emulsion regeneration time refers to the average preset time from the start of pressurized dissolved gas reflux circulation operation and oil skimming to the completion of emulsion blending and the generation of usable regenerated emulsion.

[0128] The emulsion replenishment operation refers to the operation of opening the first valve 3 in advance according to the predicted equipment working needs, and introducing the failed emulsion in the workshop tank 5 into the emulsion collection container 612 in order to reserve the second emulsion in advance and shorten the waiting time for subsequent regeneration.

[0129] If the waiting time exceeds the time required for a single emulsion regeneration cycle, it indicates that there is sufficient time before the next metal cleaning operation. In this case, an emulsion replenishment operation can be performed on the second emulsion in the emulsion collection container 612 to complete the regeneration process. After the emulsion replenishment operation, the settling time of the second emulsion in the emulsion collection container 612 will be reset.

[0130] If the waiting time is less than the emulsion regeneration time, it means that the corresponding equipment will start the next metal cleaning operation in a short time and the emulsion replenishment operation cannot be performed. In this case, the second valve 615 should be directly controlled to open to carry out the emulsion regeneration process.

[0131] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0132] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for the environmentally friendly centralized collection and regeneration of waste emulsion, applied to a waste emulsion environmentally friendly centralized collection and regeneration system, characterized in that: The system includes several workshop emulsion application devices (1), waste emulsion inlet pipes (2) corresponding to the workshop emulsion application devices (1), a first valve (3), underground pipelines (4), workshop tanks (5), and waste emulsion regeneration components (6). One end of the waste emulsion inlet pipe (2) is connected to the waste outlet of the emulsion application equipment (1) in the workshop, and the other end of the waste emulsion inlet pipe (2) is connected to the underground pipeline (4); the first valve (3) is installed on the waste emulsion inlet pipe (2), and the underground pipeline (4) is connected to the inner tank (5) in the workshop. The inner tank (5) of the workshop is equipped with a separation baffle, and the separation baffle is equipped with an emulsion outlet hole. The emulsion outlet hole is located below the liquid surface and above the bottom of the tank in the inner tank (5). The emulsion outlet hole is connected to the waste emulsion regeneration component (6). The emulsion outlet hole is used to intercept the upper floating oil and the lower sediment in the inner tank (5) to obtain the first emulsion, which flows to the waste emulsion regeneration component (6). The waste emulsion regeneration component (6) includes an emulsion degreasing component (61), an emulsion fusion component (63), an emulsion stirring and regeneration component (64), an air flotation circuit component (62), a regeneration conveying pipeline (65), a third valve (653), a fourth valve (654), a regeneration valve (66), and an additive component (67). The emulsion degreasing component (61) includes an emulsion collection pipe (611), an emulsion centralized collection container (612), a second emulsion delivery pipe (613), an oil floating tank (614), and a second valve (615). One end of the emulsion collection pipe (611) is connected to the emulsion outlet hole, and the other end of the emulsion collection pipe (611) is connected to the emulsion collection container (612). The bottom of the emulsion collection container (612) is provided with a slag discharge port for removing the residue in the first emulsion to obtain the second emulsion. The emulsion collection container (612) is provided with a detection port inside, through which the concentration of the second emulsion and impurities can be detected. One end of the second emulsion conveying pipe (613) is connected to the emulsion collection container (612), and the other end of the second emulsion conveying pipe (613) is connected to the floating oil tank (614). The second valve (615) is installed on the second emulsion conveying pipe (613). The bottom of the oil spill tank (614) is provided with a liquid extraction port. The regeneration conveying pipeline (65) is provided with a first branch (651) and a second branch (652). One end of the regeneration conveying pipeline (65) is connected to the liquid extraction port, and the other end of the regeneration conveying pipeline (65) is connected to the emulsion stirring and regeneration assembly (64). The first branch (651) is connected to the air flotation circuit assembly (62), and the second branch (652) is connected to the emulsion fusion assembly (63). The third valve (653) is located on the first branch (651), the fourth valve (654) is located on the second branch (652), and the regeneration valve (66) is located between the regeneration conveying pipeline (65) and the second branch (652). The additive assembly (67) includes an additive pipeline (671), an additive storage container (672), and an additive valve (673). The additive storage container (672) is connected to the emulsion stirring and regeneration assembly (64) through the additive pipeline (671), and the additive valve (673) is located on the additive pipeline (671). The air flotation circuit assembly (62) includes a pressurized dissolved air tank (621), a high-pressure air pump (622), a first gas delivery pipeline (623), a second gas delivery pipeline (624), and a gas delivery valve (625). The first branch (651) is connected to the pressurized dissolved gas tank (621), one end of the first gas transmission pipe (623) is connected to the pressurized dissolved gas tank (621), and the other end of the first gas transmission pipe (623) is connected to the high-pressure air pump (622). The high-pressure air pump (622) uses air pressure to pump the second emulsion from the floating oil tank (614) into the pressurized dissolved gas tank (621) from the first branch (651). One end of the second gas transmission pipe (624) is connected to the floating oil tank (614), and the other end of the second gas transmission pipe (624) is connected to the pressurized dissolved gas tank (621). The gas transmission valve (625) is installed on the second gas transmission pipe (624) and is used to reinject the dissolved second emulsion back into the floating oil tank (614) to form air flotation separation. The floating oil tank (614) is equipped with a movable oil scraper that can move horizontally. The movable oil scraper is equipped with a third emulsion inlet hole. The movable oil scraper scrapes off the floating oil on the surface of the floating oil tank (614) to obtain a third emulsion. After the third emulsion in the floating oil tank (614) is separated from the floating oil and impurities by the air flotation circuit and the movable oil scraper, it flows out of the floating oil tank (614) and enters the emulsion stirring and regeneration component (64). The emulsion fusion assembly (63) includes an emulsion stock container (631), a deionized water container (632), a mixing container (633), a first fusion pipe (634), a first fusion valve (635), a first fusion branch (636), and a second fusion valve (637). One end of the first fusion pipe (634) is connected to the emulsion stock container (631), and the other end of the first fusion pipe (634) is connected to the preparation container (633). A first fusion branch (636) is provided on the first fusion pipe (634), and the first fusion branch (636) is connected to the deionized water container (632). A first fusion valve (635) is provided on the first fusion pipe (634), and a second fusion valve (637) is provided on the first fusion branch (636). The pure emulsion in the emulsion stock container (631) and the deionized water in the deionized water container (632) are mixed in proportion and then flow into the modulation container (633) through the first fusion pipe (634) to obtain the modulation emulsion. The modulation emulsion flows into the regeneration conveying pipe (65) through the second branch (652). The emulsion stirring and regeneration assembly (64) includes a regenerated emulsion storage container (641), a regeneration air pump (642), a regeneration pipeline (643), a sixth valve (644), a high-level tank (647), a supply pipeline (645), a supply valve (646), a new emulsion supply pipeline (648), a supply branch line (649), and a circulation valve (6490). One end of the regenerated conveying pipeline (65) away from the floating oil tank (614) is connected to the regenerated emulsion storage container (641). One end of the supply pipeline (645) is connected to the regenerated emulsion storage container (641), and the other end of the supply pipeline (645) is connected to the high-level tank (647). The supply valve (646) is located on the supply pipeline (645). One end of the new emulsion supply pipeline (648) is connected to the high-level tank (647). The new emulsion supply pipeline (648) is provided with a number of supply branches (649). The number of supply branches (649) corresponds one-to-one with the emulsion application equipment (1) in the workshop. One end of the supply branch (649) is connected to the emulsion application equipment (1) in the workshop. The other end of the supply branch (649) is connected to the new emulsion supply pipeline (648). The circulation valve (6490) is located on the supply branch (649). The regenerated emulsion storage container (641) is equipped with an aeration and stirring pipe. One end of the regeneration pipe (643) is connected to the aeration and stirring pipe, and the other end of the regeneration pipe (643) is connected to the regeneration gas pump (642). The sixth valve (644) is located on the regeneration pipe (643) and is used to control the regeneration gas pump (642) to introduce gas into the aeration and stirring pipe to stir the liquid in the regenerated emulsion storage container (641) to obtain the regenerated emulsion. The method includes: In response to the emulsion status acquisition signal, the emulsion application equipment number in the workshop is obtained, and the current emulsion detection parameters corresponding to the emulsion application equipment number in the workshop are obtained in real time through the automatic sampling detector; If the current emulsion detection parameters fall within the preset emulsion failure judgment range, determine the application equipment number of the failed emulsion; Find the first valve number corresponding to the application equipment number of the failed emulsion, and perform valve opening and closing operations based on the valve corresponding to the first valve number; In response to the start signal of the separation baffle, the separation baffle is controlled to perform emulsion separation operation; After performing the emulsion separation operation, perform the foam scraping operation; The current liquid height and the second emulsion height in the floating oil tank (614) are obtained in real time. If the second emulsion height reaches the preset full liquid reference height of the floating oil tank, the detection port data is obtained to obtain the second emulsion concentration, and the emulsion mixing operation is performed based on the second emulsion concentration. After performing the emulsion mixing operation, obtain the replenishment number sequence of the emulsion application equipment in the workshop, determine the circulation valve number corresponding to the replenishment number sequence of the emulsion application equipment in the workshop, and control the valve corresponding to the circulation valve number to perform valve opening and closing operations; The method for controlling the separation baffle to perform emulsion separation operation includes: The total amount of emulsion, sediment height and oil layer thickness in the workshop tank (5) are obtained in real time to determine the emulsion floating height. Obtain the height of the emulsion outlet hole corresponding to the separation baffle; The current height difference is determined based on the height of the emulsion outlet hole and the emulsion floating height; Determine the lifting parameters of the separation baffle based on the current height difference, and execute the lifting operation according to the lifting parameters of the separation baffle; The methods for performing foam scraping operations include: The height of the second emulsion is obtained based on the oil-water interface sensor, and a pressurized dissolved gas reflux circulation operation is performed. After performing the pressurized dissolved gas reflux circulation operation, the movement parameters of the waste oil foam lifting plate are determined by the height of the second emulsion. Perform the isolation lifting operation according to the movement parameters of the waste oil foam lifting plate; Find the preset foam scraping parameters and control the moving scraper to perform the foam scraping operation according to the foam scraping parameters.

2. The method for centralized collection and regeneration of waste emulsion according to claim 1, characterized in that, Methods for performing emulsion blending operations include: Obtain the total amount of the third emulsion, and determine the effective working content ratio and effective working content of the emulsion based on the total amount of the third emulsion and the concentration of the second emulsion; The amount of pure emulsion, the amount of blended liquid, and the amount of additives are determined based on the effective working content ratio and the effective working content of the emulsion. The mixing valve is opened and closed based on the mixing amounts of the third emulsion, the pure emulsion, the mixing liquid, and the additives, and the uniform change rate of the emulsion concentration is obtained in real time. The gas delivery rate is determined in real time based on the uniform change rate of emulsion concentration, and the emulsion blending operation is performed according to the gas delivery rate.

3. The method for centralized collection and regeneration of waste emulsion according to claim 2, characterized in that, Methods for obtaining the replenishment serial number of equipment used in workshop emulsion applications include: The content of the emulsion in the workshop is determined based on the equipment number used in the emulsion application. When the emulsion content in the workshop falls within the preset emulsion shortage range, the working signal corresponding to the emulsion application equipment number in the workshop is obtained to determine the working status of the emulsion application equipment in the workshop. If the working status of the emulsion application equipment in the workshop is the preset cleaning state, determine the cleaning application equipment number; The current number of serial numbers is determined based on the cleaning application equipment serial number; If the current number of numbers is greater than 1, obtain the supply branch number corresponding to the cleaning application equipment number, and determine the cleaning application equipment number sequence based on the supply branch number and the cleaning application equipment number.

4. The method for centralized collection and regeneration of waste emulsion according to claim 3, characterized in that, It also includes a method for performing an emulsion replenishment operation, the method comprising: Obtain the volume of the second emulsion corresponding to the emulsion collection container (612); When there is no failed emulsion application equipment number and the volume of the second emulsion is less than the preset single regeneration liquid volume range, find the waiting time corresponding to the workshop emulsion application equipment number. If the waiting time exceeds the preset single emulsion regeneration time, determine the application equipment number and the first valve number of the failed emulsion, and control the valve corresponding to the first valve number to perform the emulsion replenishment operation.

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