Cleaning device, cleaning agent and cleaning method for wire mesh demister
By using a combination of cleaning agents composed of sulfamic acid and other combinations and multiple technical means, the scaling problem of wire mesh defogging is solved, efficient cleaning and resource recycling are achieved, and operating costs and environmental pollution are reduced.
Patent Information
- Application Number
- CN202411275986.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2024-12-17
AI Technical Summary
During the evaporation process, the wire mesh defogging device is prone to scale, resulting in unstable system operation, the nozzles of the existing flushing system are easily blocked, affecting the defogging effect, and the cleaning agent is difficult to effectively remove the scale samples, increasing operating costs and environmental pollution risk.
Provide a cleaning agent including sulfamic acid, hydrofluoric acid, corrosion inhibitor and water, which acts directly on the screen demister through the agent cleaning assembly, combines spraying, stirring and ultrasonic cleaning techniques to remove the scale sample and pass Filtration and aeration to recover cleaners and water to reduce resource waste and environmental pollution.
Effectively remove the scale sample of the wire mesh defogger, reduces the risk of blockage, reduces operating costs, realizes the recycling of cleaning agents and water, reduces waste liquid emissions, and meets environmental protection requirements.
Smart Images
Figure CN119144397A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of filtering mechanism cleaning, and in particular to a cleaning device, a cleaning agent and a cleaning method for a wire mesh demister. Background Art
[0002] With the continuous expansion of the construction scale of power plants in my country, the discharge of desulfurization wastewater has also increased significantly. Due to its complex composition, high content of suspended solids, high hardness, high chloride ion content and weak acidity, desulfurization wastewater is very difficult to treat, which is a major difficulty in achieving zero wastewater discharge. At present, the commonly used desulfurization wastewater treatment technologies mainly include membrane concentration technology and evaporation technology.
[0003] However, the application and promotion of membrane concentration technology in power plant desulfurization wastewater treatment is limited due to high water quality requirements, complex operation and control, easy membrane pollution and high operating costs.
[0004] In contrast, thermal treatment of desulfurization wastewater has gradually been put into practice and applied. It has a short process flow, low investment, and good treatment effect, so it is increasingly recognized. In particular, evaporation technology has been widely used in power plants due to its short process flow, simple operation, and good treatment effect. However, during the evaporation treatment process, due to the continuous concentration of salts, pollutants and other substances in the water, the concentration of wastewater increases, resulting in foaming of organic matter and surfactants in the wastewater. These foams will carry more droplets with the rising water vapor, which will more easily lead to frequent scaling of the wire mesh demister, which will have a serious impact on the normal operation of the system.
[0005] In order to solve this problem, a flushing water system is often installed above the wire mesh demister. When the demister is blocked, the flushing water system can be started for cleaning to restore its function. However, during the long-term operation of the system, the nozzles of the flushing system are easily blocked, resulting in unsatisfactory flushing effect. This will further increase the defogger burden of the demister, and when the blockage is serious, it may even cause the evaporator to fail to operate normally. Summary of the invention
[0006] In view of this, the purpose of the present invention is to overcome the deficiencies in the prior art and to provide a cleaning device, a cleaning agent and a cleaning method for a wire mesh demister.
[0007] The present invention provides the following technical solutions:
[0008] In a first aspect, an embodiment of the present application provides a cleaning agent comprising aminosulfonic acid, hydrofluoric acid, a corrosion inhibitor and a balance of water.
[0009] In one embodiment, the cleaning agent also includes sodium chloride and sodium chlorite, wherein the weight percentages of the components are: 8%-10% aminosulfonic acid, 1%-2% hydrofluoric acid, 2%-3% sodium chloride, 1%-2% sodium chlorite, 0.3%-0.5% corrosion inhibitor and the remainder water.
[0010] In one embodiment, the cleaning agent further comprises potassium permanganate, wherein the weight percentages of the components are respectively: 8%-10% aminosulfonic acid, 1%-2% hydrofluoric acid, 0.1%-0.3% potassium permanganate, 0.3%-0.5% corrosion inhibitor and the balance water.
[0011] In a second aspect, an embodiment of the present application provides a cleaning device for a wire mesh defogger, which uses the cleaning agent described in any of the above embodiments to clean the workpiece; the cleaning device for the wire mesh defogger includes a cleaning tank, a chemical cleaning component and a flushing component, the cleaning tank includes a cleaning chamber and a dirt storage chamber, and the workpiece is cleaned in the cleaning chamber using the cleaning agent; the chemical cleaning component includes a chemical storage container, the cleaning agent is stored in the chemical storage container, the chemical storage container has a chemical outlet and a chemical recovery port, and the chemical The cleaning agent in the agent storage container is discharged into the cleaning chamber through the agent outlet to clean the workpiece, and the cleaning agent in the dirt storage chamber is recovered into the agent storage container through the agent recovery port; the flushing component includes a water tank, which stores water. The water tank has a water outlet and a water return port, the water outlet is connected to the cleaning chamber to pass water into the cleaning chamber, and the water return port is connected to the cleaning chamber and the dirt storage chamber to recover the water in the cleaning chamber and the dirt storage chamber into the water tank.
[0012] In one embodiment, the cleaning device of the wire mesh demister also includes a spray component, which is arranged in the cleaning chamber, the spray component is connected to the agent outlet and the water outlet, the agent storage container sprays the cleaning agent onto the workpiece through the spray component, and the water tank sprays water onto the workpiece through the spray component; and / or, the cleaning device of the wire mesh demister also includes a lifting assembly, which is used to lift the workpiece into the cleaning chamber, or lift the workpiece out of the cleaning chamber.
[0013] In one embodiment, a filter is provided in the dirt storage chamber, and the filter is used to filter suspended solids in the cleaning agent. The cleaning agent in the dirt storage chamber is filtered by the filter and then recovered into the drug storage container.
[0014] In one embodiment, an aeration pipe and a compressed gas source are provided in the sewage storage chamber, the compressed gas source is connected to the aeration pipe, the compressed gas source provides compressed gas to the aeration pipe, and the aeration pipe is provided in the sewage storage chamber to pass compressed gas into the sewage storage chamber to prevent solid suspended matter from accumulating and settling in the sewage storage chamber.
[0015] In one embodiment, a three-phase separator is provided on the filter element, and the cleaning agent passes through the three-phase separator and the filter element in sequence and then enters the agent recovery port; a first circulation pipe is connected between the three-phase separator and the aeration pipe, and the compressed gas in the cleaning agent after aeration passes through the three-phase separator and the first circulation pipe in sequence and then returns to the aeration pipe.
[0016] In one embodiment, the cleaning device of the wire mesh demister further includes a stirring component and a filler, wherein the stirring component is used to stir the liquid in the cleaning chamber, and the filler is arranged in the cleaning chamber, and the filler collides and rubs against the workpiece under the drive of the flowing liquid; and / or, the cleaning device of the wire mesh demister further includes an ultrasonic cleaner, which is arranged in the cleaning chamber to ultrasonically clean the workpiece.
[0017] In a third aspect, an embodiment of the present application provides a cleaning method for a wire mesh demister, which is implemented using the cleaning device for the wire mesh demister described in any of the above embodiments, and the cleaning method includes: using the cleaning agent described in any of the above embodiments to clean a workpiece, the cleaning agent liquid level height is greater than the workpiece height, adding fillers to the cleaning agent, stirring the cleaning agent when cleaning the workpiece, and the fillers collide and rub against the workpiece driven by the flowing cleaning agent; using ultrasonic vibration cleaning during the cleaning process of the workpiece, and rinsing the workpiece with water after the workpiece is cleaned with the cleaning agent; filtering and aerating the cleaning agent after cleaning the workpiece, if the pH value of the cleaning agent after use is less than or equal to 3.5 and the online TDS measurement value is less than or equal to 10000 mg / L, then the cleaning agent after use can be reused; if the pH value of the water after rinsing the workpiece is greater than or equal to 5, it can be reused.
[0018] The cleaning device for the wire mesh demister provided by the embodiment of the present invention has the following advantages:
[0019] Through the chemical cleaning component, the cleaning agent can directly act on the workpiece to effectively remove the dirt and sediment on its surface. The flushing component is used in the final cleaning step to ensure that the surface of the workpiece is clean and free of residue. The cleaning agent and water can be recycled and collected again after use, reducing the waste of resources. The recycled cleaning agent and water can be used again, reducing operating costs. By reducing the consumption of cleaning agents and water, pollution to the environment is reduced. Recycling and recycling cleaning agents and water helps reduce waste liquid emissions, meets environmental protection requirements, and also reduces long-term operating costs.
[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 A schematic diagram of one embodiment of a cleaning device for a wire mesh demister provided in an embodiment of the present application is shown.
[0023] Description of main component symbols:
[0024] 100-cleaning tank; 110-cleaning chamber; 120-sewage storage chamber;
[0025] 200-medicine storage container; 210-medicine outlet; 220-medicine recovery port;
[0026] 300-water tank; 310-water outlet; 320-water return port;
[0027] 400-spraying component; 410-lifting component; 420-stirring component; 430-filler; 440-ultrasonic cleaner; 450-workpiece; 460-control component;
[0028] 500 - filter element; 510 - aeration pipe; 520 - compressed gas source; 530 - three-phase separator; 540 - first circulation pipe. DETAILED DESCRIPTION
[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of the template are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0034] Embodiments of the present application provide a cleaning device, a cleaning agent, and a cleaning method for a wire mesh demister.
[0035] In a first aspect, an embodiment of the present application provides a cleaning agent for a wire mesh demister.
[0036] Example 1
[0037] The cleaning agent comprises 8 parts of aminosulfonic acid, 2 parts of hydrofluoric acid, 0.3 parts of corrosion inhibitor and the balance of water in parts by weight.
[0038] The scale in the wire mesh demister is mainly CaSO4, CaSiO3, CaCO3, iron oxide, magnesium oxide, organic matter, etc. The aminosulfonic acid in the cleaning agent can react with calcium sulfate and calcium carbonate to generate calcium aminosulfonate and sulfuric acid, which can remove the scale from the demister. Hydrofluoric acid can react with CaSiO3 to generate calcium fluoride, silicon fluoride and water, thereby removing the silicate scale to achieve the cleaning of the wire mesh demister.
[0039] The cleaning agent contains corrosion inhibitors, which helps to reduce the corrosion of the wire mesh demister material during the cleaning process. Corrosion inhibitors can be adsorbed on the metal surface to form a protective film, or inhibit the occurrence of corrosion reactions by changing the electrochemical state of the metal surface. The use of corrosion inhibitors not only helps to reduce the corrosion of the equipment during the cleaning process, but also helps to reduce the pollution of the cleaning waste liquid to the environment. By controlling the composition and properties of the cleaning waste liquid, its potential harm to water and soil can be reduced.
[0040] The aminosulfonic acid and hydrofluoric acid in the cleaning agent can react chemically with common scaling substances (such as CaSO4, CaSiO3, CaCO3, iron oxides, magnesium oxides, organic matter, etc.) in the wire mesh demister to generate soluble products, thereby effectively stripping and removing the scale.
[0041] Exemplarily, the workpiece 450 may be a wire mesh demister, or other equipment such as a filter, a tubular cooler, etc.
[0042] Example 2
[0043] The cleaning agent also includes the following components: sodium chloride and sodium chlorite, wherein the weight percentages of the components are respectively: 10 parts of aminosulfonic acid, 2 parts of hydrofluoric acid, 3 parts of sodium chloride, 2 parts of sodium chlorite, 0.5 parts of corrosion inhibitor and the balance of water.
[0044] During the cleaning process, the aminosulfonic acid of the cleaning agent can react with calcium sulfate and calcium carbonate to generate calcium aminosulfonate and sulfuric acid, which can remove the scale from the demister; hydrofluoric acid can react with CaSiO3 to generate calcium fluoride, silicon fluoride and water, thereby removing silicate scale; aminosulfonic acid reacts with sodium chloride to produce hydrochloric acid, thereby acidifying iron oxides and magnesium oxides into soluble chlorides, and the generated hydrochloric acid reacts with sodium chlorite to produce chlorine dioxide, thereby oxidizing organic matter and removing it from the wire mesh demister. Exemplarily, the corrosion inhibitor is SGR-0405 corrosion inhibitor.
[0045] By properly proportioning the components, the generation of byproducts that are harmful to the environment is reduced. For example, although chlorine dioxide generated by the reaction of sodium chlorite and hydrochloric acid has strong oxidizing properties, it is mainly used to oxidize and remove organic matter in this formula, and the reaction conditions are easy to control, reducing potential harm to the environment.
[0046] Example 3
[0047] The cleaning agent comprises, by weight, 8 parts of aminosulfonic acid, 1 part of hydrofluoric acid, 2 parts of sodium chloride, 1 part of sodium chlorite, 0.3 parts of corrosion inhibitor and the balance of water.
[0048] Example 4
[0049] The cleaning agent also includes the following components: potassium permanganate, wherein the weight percentages of the components are respectively: 10 parts of aminosulfonic acid, 2 parts of hydrofluoric acid, 0.3 parts of potassium permanganate, 0.5 parts of corrosion inhibitor and the balance of water.
[0050] The aminosulfonic acid in the cleaning agent can react with sulfate and calcium carbonate to generate calcium aminosulfonate and sulfuric acid, which can remove the scale from the demister. The hydrofluoric acid can react with CaSiO3 to generate calcium fluoride, silicon fluoride and water, which can remove silicate scale. Under the action of sulfuric acid, organic matter can be oxidized by potassium permanganate and removed from the wire mesh demister. Iron oxides and magnesium oxides are acidified by acid and become soluble.
[0051] In a second aspect, an embodiment of the present application also provides a cleaning device for a wire mesh demister.
[0052] Example 5
[0053] like Figure 1 As shown, the cleaning device of the wire mesh demister includes a cleaning tank 100, a chemical cleaning component and a flushing component.
[0054] The cleaning pool 100 includes a cleaning chamber 110 and a dirt storage chamber 120. The workpiece 450 is cleaned with a cleaning agent in the cleaning chamber 110. Exemplarily, the workpiece 450 is cleaned with a cleaning agent of the wire mesh demister described in any of the above embodiments.
[0055] Exemplarily, the cleaning chamber 110 and the dirt storage chamber 120 are independent of each other but connected through a pipeline, a pump and a valve body. When the valve body is opened, the pump can drive the liquid in the cleaning chamber 110 to enter the dirt storage chamber 120 through the pipeline. Exemplarily, the manufacturing material of the cleaning pool 100 includes at least: ceramic, corrosion-resistant plastic, corrosion-resistant stainless steel, etc.
[0056] The reagent cleaning component includes a reagent storage container 200. The reagent storage container 200 stores a cleaning agent, and the reagent storage container 200 has a reagent outlet 210 and a reagent recovery port 220. The cleaning agent in the reagent storage container 200 is discharged into the cleaning chamber 110 through the reagent outlet 210 to clean the workpiece 450, and the cleaning agent in the dirt storage chamber 120 is recovered into the reagent storage container 200 through the reagent recovery port 220.
[0057] Exemplarily, the medicine storage container 200 can be connected to the cleaning pool or separated. Exemplarily, the manufacturing material of the medicine storage container 200 includes at least: ceramic, corrosion-resistant plastic, corrosion-resistant stainless steel, etc.
[0058] Exemplarily, the agent outlet 210 is connected to the cleaning chamber 110 through a pipeline, and a valve body and a pump are provided on the pipeline, and the pump can drive the cleaning agent to flow from the agent outlet 210 into the cleaning chamber 110 to clean the workpiece 450. Exemplarily, the pump can spray the cleaning agent onto the workpiece 450 and submerge the workpiece 450 with the cleaning agent.
[0059] Exemplarily, the drug recovery port 220 is connected to the dirt storage chamber 120 via a pipeline, and a valve body and a pump are provided on the pipeline, which can drive the cleaning agent to flow from the dirt storage chamber 120 to the drug recovery port 220 to recover the cleaning agent into the drug storage container 200.
[0060] The flushing assembly includes a water tank 300 , in which water is stored. Exemplarily, the water stored in the water tank 300 may be tap water or pure water.
[0061] The water tank 300 has a water outlet 310 and a water return port 320. The water outlet 310 is connected to the cleaning chamber 110 to pass water into the cleaning chamber 110. The water return port 320 is connected to the cleaning chamber 110 and the dirt storage chamber 120 to recover water in the cleaning chamber 110 and the dirt storage chamber 120 into the water tank 300.
[0062] Exemplarily, the water tank 300 is connected to or separated from the cleaning pool 100. Exemplarily, the manufacturing material of the water tank 300 includes at least: ceramic, corrosion-resistant plastic, and corrosion-resistant stainless steel. Exemplarily, the water outlet 310 is connected to the cleaning chamber 110 through a pipeline, and a valve body and a pump are provided on the pipeline. When the valve body is opened, the pump can drive water from the water outlet 310 to the cleaning chamber 110.
[0063] Exemplarily, the water return port 320 is connected to the cleaning chamber 110 via a pipeline, and a valve body and a pump are arranged on the pipeline. After the valve body is opened, the pump can recycle water from the cleaning chamber 110 and the water return port 320 to the water tank 300.
[0064] Exemplarily, the water return port 320 is connected to the dirt storage chamber 120 via a pipe, on which a valve body and a pump are provided. When the valve body is opened, the pump can lift water from the dirt storage chamber 120 and the workpiece 450 of the water return port 320 out of the cleaning chamber 1 and recover it into the water tank 300.
[0065] Through the chemical cleaning component, the cleaning agent can directly act on the workpiece 450 to effectively remove the dirt and sediment on its surface. The flushing component is used in the final cleaning step to ensure that the surface of the workpiece 450 is clean and free of residue. The cleaning agent and water can be recycled and collected again after use, reducing the waste of resources. The recycled cleaning agent and water can be used again, reducing operating costs. By reducing the consumption of cleaning agents and water, pollution to the environment is reduced. Recycling and recycling cleaning agents and water helps reduce waste liquid discharge, meets environmental protection requirements, and also reduces long-term operating costs.
[0066] like Figure 1 As shown, in one embodiment, the cleaning device of the wire mesh demister also includes a spray member 400, which is disposed in the cleaning chamber 110, and the spray member 400 is connected to the agent outlet 210 and the water outlet 310, and the agent storage container 200 sprays the cleaning agent onto the workpiece 450 through the spray member 400, and the water tank 300 sprays water onto the workpiece 450 through the spray member 400.
[0067] Exemplarily, the cleaning agent and water are not sprayed at the same time. During use, the cleaning agent is first sprayed through the spray part 400, and the spraying is stopped after the cleaning agent submerges the workpiece 450. After the cleaning agent cleans the workpiece 450, the cleaning agent is discharged into the dirt storage chamber 120, and then water is sprayed onto the workpiece 450 through the spray part 400, and the spraying of water is stopped after the water submerges the workpiece 450.
[0068] Exemplarily, the spray member 400 is fixedly arranged on the inner side wall of the cleaning chamber 110 by welding, clamping or bolting. Exemplarily, the spray member 400 is a spray head having a plurality of water spray ports.
[0069] like Figure 1 As shown, in one embodiment, the cleaning device for the wire mesh mist eliminator further includes a lifting assembly 410 , and the lifting assembly 410 is used to lift the workpiece 450 into the cleaning chamber 110 , or lift the workpiece 450 out of the cleaning chamber 110 .
[0070] Exemplarily, the lifting assembly 410 includes a base, a first telescopic rod, a second telescopic rod, a rope pulley and a hook; the base is fixedly arranged on the cleaning tank 100, the first telescopic rod can be extended and retracted in the vertical direction and one end of the first telescopic rod is rotatably mounted on the base, the other end of the first telescopic rod is vertically connected to one end of the second telescopic rod, and the other end of the second telescopic rod is rotatably provided with a rope pulley, a cable is wound around the rope pulley, and a hook is provided at one end of the cable, and the workpiece 450 can be lifted by the hook. The second telescopic rod can be extended and retracted and arranged horizontally. The forward and reverse rotation of the rope pulley can lift or lower the workpiece 450. The lifting position of the workpiece 450 can be fine-tuned by the extension and retraction of the first telescopic rod and the second telescopic rod, and the rotation of the first telescopic rod can drive the workpiece 450 to rotate around the first telescopic rod.
[0071] Exemplarily, the first telescopic rod is one of the following: a hydraulic rod, an electric push rod, a threaded screw mechanism, etc. Exemplarily, the second telescopic rod is one of the following: a hydraulic rod, an electric push rod, a threaded screw mechanism, etc.
[0072] like Figure 1 As shown, in one embodiment, a filter element 500 is disposed in the dirt storage chamber 120 , and the filter element 500 is used to filter suspended solids in the cleaning agent. The cleaning agent in the dirt storage chamber 120 is filtered by the filter element 500 and then recovered into the drug storage container 200 .
[0073] Exemplarily, the liquid inlet of the pipe connecting the medicine recovery port 220 and the filter element 500 are sequentially distributed along the gravity direction, and the cleaning agent is first filtered by the filter element 500 and then enters the pipe.
[0074] Exemplarily, the filter element 500 is a filter screen. In another embodiment, the filter element 500 is a filter cloth. In other embodiments, the filter element 500 is a filter membrane.
[0075] like Figure 1 As shown, in one embodiment, an aeration pipe 510 and a compressed gas source 520 are provided in the sewage storage chamber 120. The compressed gas source 520 is connected to the aeration pipe 510. The compressed gas source 520 provides compressed gas to the aeration pipe 510. The aeration pipe 510 is provided in the sewage storage chamber 120 to pass the compressed gas into the sewage storage chamber 120. The compressed gas forms a large number of bubbles in the cleaning liquid, which pushes the solid suspended matter (i.e., scale) in the cleaning agent to float, thereby preventing the solid suspended matter from accumulating and settling in the sewage storage chamber 120, thereby avoiding difficulties in sludge discharge.
[0076] Exemplarily, the aeration pipe 510 is connected to the compressed gas source 520 via a pipeline, and a valve body capable of opening and closing the pipeline is disposed on the pipeline.
[0077] Exemplarily, the main body of the aeration tube 510 is a tubular hollow structure, a tube wall of which is provided with a plurality of pores, through which the compressed gas is discharged.
[0078] Exemplarily, the compressed gas source 520 is an air compressor. In other embodiments, the compressed gas source 520 is a storage tank storing compressed air. In other embodiments, the compressed gas source 520 is a retractable air bag storing compressed gas.
[0079] like Figure 1 As shown, in one embodiment, a three-phase separator 530 is disposed on the filter element 500 , and the cleaning agent enters the drug recovery port 220 after passing through the three-phase separator 530 and the filter element 500 in sequence.
[0080] A first circulation pipe 540 is connected between the three-phase separator 530 and the aeration pipe 510 . The compressed gas in the cleaning agent after aeration passes through the three-phase separator 530 and the first circulation pipe 540 in sequence and then returns to the aeration pipe 510 .
[0081] For example, the bubbles generated by the aerated cleaning agent enter the three-phase separator 530, and the three-phase separator 530 re-introduces the compressed air in the bubbles into the aeration pipe 510 through the first circulation pipe 540. The solid suspension moves upward with the water flow of the bubbles and the cleaning agent. When it moves to the three-phase separator 530, the bubbles enter the three-phase separator 530 and the first circulation pipe 540 successively, and then flow back to the sewage storage chamber 120 through the aeration pipe 510, while the solid suspension is intercepted by the three-phase separator 530 and flows back to the sewage storage chamber 120 through intermittent aeration, while the cleaning agent flows upward through the three-phase separator 530; and part of the solid suspension will pass through the three-phase separator 530, at which time the filter element 500 can be used for filtering to further intercept the solid suspension, and then the filtered cleaning agent is discharged to the medicine storage container 200 for storage under the action of the pump for subsequent use.
[0082] like Figure 1 As shown, in one embodiment, the cleaning device of the wire mesh defogger also includes a stirring component 420 and a filler 430, and the stirring component 420 is used to stir the liquid in the cleaning chamber 110; illustratively, the stirring component 420 includes a stirring motor, a stirring shaft and a stirring blade, the stirring motor is fixedly arranged on the cleaning tank 100, one end of the stirring shaft is fixedly connected to the output shaft of the stirring motor, and the other end of the stirring shaft is provided with a stirring blade, the stirring motor rotates to drive the stirring shaft and the stirring blade to rotate, the stirring blade is located in the cleaning liquid, and the stirring blade rotates to stir the cleaning agent.
[0083] The stirring assembly 420 (including a stirring motor, a stirring shaft and a stirring blade) stirs the liquid in the cleaning chamber 110 so that the cleaning agent can be more evenly distributed in the cleaning liquid, thereby enhancing the dissolution and penetration ability of the cleaning agent and improving the cleaning efficiency. The rotation of the stirring blade can also generate eddy currents and shear forces, which help remove stubborn dirt on the surface of the wire mesh demister.
[0084] For example, the stirring component 420 can be used to stir the cleaning agent and water in the cleaning chamber 110 .
[0085] The filler 430 is disposed in the cleaning chamber 110. The filler 430 collides and rubs with the workpiece 450 under the drive of the flowing liquid. For example, the filler 430 is not easily stained and does not chemically react with the cleaning agent. For example, the filler 430 is a Raschig ring. For example, the diameter of the Raschig ring is 20-30 mm so that it can be suspended in the solution. For example, the Raschig ring can be made of the following materials: ceramic, metal (such as corrosion-resistant stainless steel, etc.), plastic (such as polyethylene, polypropylene, polyvinyl chloride, etc.).
[0086] The provision of the filler 430 (such as Raschig ring) increases the contact area and collision and friction opportunities between the cleaning liquid and the workpiece 450 (wire mesh demister). Driven by the flowing liquid, the filler 430 collides and rubs against the surface of the wire mesh demister, which helps to peel off and disperse the dirt attached to the surface, further improving the cleaning effect.
[0087] The design of the filler 430 and the stirring component 420 has a certain flexibility and can be adjusted and optimized according to different cleaning requirements and characteristics of the workpiece 450. For example, fillers 430 of different materials can be selected to adapt to different working environments and cleaning agent types; the speed and stirring intensity of the stirring component 420 can also be adjusted according to actual conditions.
[0088] like Figure 1 As shown, in one embodiment, the cleaning device of the wire mesh mist eliminator further includes an ultrasonic cleaner 440 , which is disposed in the cleaning chamber 110 to perform ultrasonic cleaning on the workpiece 450 .
[0089] like Figure 1 As shown, in one embodiment, the cleaning device for the wire mesh demister further comprises a control assembly 460, which is electrically connected to control various valve bodies, pumps, etc., and the operation of the cleaning device for the wire mesh demister is controlled by the control assembly 460. Exemplarily, the valve body of the above embodiment is an electrically controlled valve.
[0090] Exemplarily, the control component 460 includes a controller, which includes but is not limited to: a central processing unit (CPU) or a programmable logic control component 460 (PLC) or an electronic device with logic control function.
[0091] Illustratively, in one embodiment, the drug storage container 200 is provided with a liquid level meter, a pH value tester, and an online TDS meter.
[0092] In one embodiment, a liquid level meter and a pH value tester are disposed on the inner wall of the cleaning chamber 110 of the cleaning pool 100 .
[0093] In one embodiment, a liquid level meter and a pH value tester are disposed in the water tank 300 .
[0094] Exemplarily, the use process of a new embodiment formed by combining the cleaning devices of the wire mesh demister of the above-mentioned embodiments is described below.
[0095] First, the workpiece 450 is lifted from outside the cleaning tank 100 to the inside of the cleaning tank 100 by the lifting assembly 410 .
[0096] Then, the workpiece 450 is cleaned with a cleaning agent. The cleaning agent in the reagent storage container 200 is sprayed onto the workpiece 450 through the spraying part 400 until the cleaning agent submerges the workpiece 450 and then the spraying is stopped. The stirring assembly 420 is started to stir the cleaning agent in the cleaning chamber 110. The filler 430 moves under the drive of the flowing cleaning agent and collides and rubs against the workpiece 450, promoting the removal of dirt on the surface of the workpiece 450, so that the cleaning agent enters the inner wall of the workpiece 450 and reacts with new dirt. The ultrasonic cleaner 440 is started. Under the micro-aeration and cavitation of the ultrasonic cleaner 440, the cleaning agent reacts better with the dirt on the workpiece 450. The ultrasonic cleaner 440 is turned on for 1-2 hours and then turned off. The cleaning agent in the cleaning chamber 110 is then discharged into the dirt storage chamber 120. The compressed gas source 520 passes compressed gas into the aeration pipe 510, and the aeration pipe 510 aerates the cleaning agent in the sewage storage chamber 120. The bubbles generated by the aerated cleaning agent enter the three-phase separator 530, and the three-phase separator 530 re-introduces the compressed air in the bubbles into the aeration pipe 510 through the first circulation pipe 540. The solid suspension moves upward with the water flow of the air bubbles and the cleaning agent. When it moves to the three-phase separator 530, the air bubbles enter the three-phase separator 530 and the first circulation pipe 540 in turn, and then flow back to the sewage storage chamber 120 through the aeration pipe 510, while the solid suspension is intercepted by the three-phase separator 530 and flows back to the sewage storage chamber 120 through intermittent aeration, while the cleaning agent flows upward through the three-phase separator 530; and some of the solid suspension will pass through the three-phase separator 530. At this time, the solid suspension can be further intercepted by filtering the filter element 500, and then the cleaning agent enters the agent storage container 200 for storage under the action of the pump for subsequent use. When the pH value of the cleaning agent in the agent storage container 200 is greater than 3.5, the cleaning agent stops using and is discharged to the desulfurization wastewater evaporation system for treatment, while the cleaning agent below the filter screen in the sewage storage chamber 120 continues to be circulated. When the online TDS measurement value is greater than 10000 mg / L, the cleaning agent stops being used and is discharged to the desulfurization wastewater evaporation system for treatment, while the cleaning agent below the filter screen in the dirt storage chamber 120 continues to be circulated.
[0097] Finally, the workpiece 450 is cleaned with water. The liquid in the water tank 300 is sprayed onto the workpiece 450 in the cleaning chamber 110 through the spray part 400 to wash away the cleaning agent, until the water surface submerges the workpiece 450 and the water spraying stops. The ultrasonic cleaner 440 is continuously operated for five to fifteen minutes, and then the water in the cleaning chamber 110 is discharged into the water tank 300 for recycling. If the pH value of the water in the cleaning chamber 110 is greater than or equal to 5, it is directly discharged to the desulfurization wastewater evaporation system. After the water is completely discharged from the cleaning chamber 110, the lifting assembly 410 is started to lift the workpiece 450 out of the cleaning pool 100.
[0098] In a third aspect, an embodiment of the present application further provides a method for cleaning a wire mesh demister, and the cleaning method is implemented by a cleaning device for a wire mesh demister of any of the above embodiments.
[0099] Example 6
[0100] The method comprises the following steps:
[0101] The workpiece 450 is cleaned with the cleaning agent of any of the above embodiments, and this step is implemented by the reagent storage container 200 and the spraying member 400 of the cleaning device of the wire mesh demister in the above embodiments.
[0102] The height of the cleaning agent liquid level is greater than the height of the workpiece 450, and the filler 430 is added to the cleaning agent. The cleaning agent is stirred when cleaning the workpiece 450, and the filler 430 collides and rubs against the workpiece 450 driven by the flowing cleaning agent. This step is achieved by the stirring component 420, the filler 430, etc. of the cleaning device of the wire mesh defogger in the above embodiment.
[0103] Ultrasonic vibration cleaning is used during the cleaning process of the workpiece 450; this step is achieved by the ultrasonic cleaner 440 of the cleaning device for the wire mesh demister in the above embodiment.
[0104] After the workpiece 450 is cleaned with the cleaning agent, the workpiece 450 is rinsed with water; this step is achieved by using the water tank 300, the spraying member 400, etc. of the cleaning device for the wire mesh demister in the above embodiment.
[0105] After filtering and aerating the cleaning agent for cleaning the workpiece 450, if the pH value of the cleaning agent after use is less than or equal to 3.5 and the online TDS measurement value is less than or equal to 10000 mg / L, the cleaning agent after use can be reused; if the pH value of the water after washing the workpiece 450 is greater than or equal to 5, it can be reused. This step is achieved by the aeration pipe 510, compressed gas source 520, three-phase separator 530, first circulation pipe 540 and filter element 500 of the cleaning device of the wire mesh demister in the above embodiment.
[0106] In all examples shown and described herein, any specific values should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.
[0107] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0108] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.
Claims
1. A cleaning agent, characterized in that: It includes sulfamic acid, hydrofluoric acid, corrosion inhibitor and the balance of water.
2. The cleaning agent according to claim 1, characterized in that It also includes sodium chloride and sodium chlorite, wherein the weight percentages of the components are respectively: Aminosulfonic acid 8%-10%, hydrofluoric acid 1%-2%, sodium chloride 2%-3%, sodium chlorite 1%-2%, corrosion inhibitor 0.3%-0.5% and the balance water.
3. The cleaning agent according to claim 1, characterized in that It also includes potassium permanganate, wherein the weight percentages of the components are: Aminosulfonic acid 8%-10%, hydrofluoric acid 1%-2%, potassium permanganate 0.1%-0.3%, corrosion inhibitor 0.3%-0.5% and the balance water.
4. A cleaning device for a wire mesh demister, characterized in that: Cleaning the workpiece (450) using the cleaning agent as described in any one of claims 1 to 3; The cleaning device of the wire mesh demister comprises: A cleaning pool (100), wherein the cleaning pool (100) comprises a cleaning chamber (110) and a dirt storage chamber (120), and the workpiece (450) is cleaned in the cleaning chamber (110) using the cleaning agent; A reagent cleaning component, the reagent cleaning component comprising a reagent storage container (200), the reagent storage container (200) storing the cleaning agent, the reagent storage container (200) having a reagent outlet (210) and a reagent recovery port (220), the cleaning agent in the reagent storage container (200) being discharged into the cleaning chamber (110) through the reagent outlet (210) to clean the workpiece (450), and the cleaning agent in the dirt storage chamber (120) being recovered into the reagent storage container (200) through the reagent recovery port (220); A flushing assembly, the flushing assembly comprising a water tank (300), wherein water is stored in the water tank (300), the water tank (300) having a water outlet (310) and a water return port (320), the water outlet (310) being connected to the cleaning chamber (110) so as to allow water to flow into the cleaning chamber (110), and the water return port (320) being connected to the cleaning chamber (110) and the dirt storage chamber (120) so as to recover water in the cleaning chamber (110) and the dirt storage chamber (120) into the water tank (300).
5. The cleaning device for the wire mesh demister according to claim 4, characterized in that: It also includes a spraying member (400), the spraying member (400) being arranged in the cleaning chamber (110), the spraying member (400) being connected to the agent outlet (210) and the water outlet (310), the agent storage container (200) spraying the cleaning agent onto the workpiece (450) through the spraying member (400), and the water tank (300) spraying water onto the workpiece (450) through the spraying member (400); And / or, the cleaning device of the wire mesh demister further comprises a lifting assembly (410), wherein the lifting assembly (410) is used to lift the workpiece (450) into the cleaning chamber (110), or lift the workpiece (450) out of the cleaning chamber (110).
6. The cleaning device for the wire mesh demister according to claim 4, characterized in that: A filter element (500) is provided in the dirt storage chamber (120), and the filter element (500) is used to filter suspended solids in the cleaning agent. The cleaning agent in the dirt storage chamber (120) is filtered by the filter element (500) and then recovered into the medicine storage container (200).
7. The cleaning device for the wire mesh demister according to claim 6, characterized in that: An aeration pipe (510) and a compressed gas source (520) are provided in the sewage storage chamber (120); the compressed gas source (520) is connected to the aeration pipe (510); the compressed gas source provides compressed gas to the aeration pipe (510); the aeration pipe (510) is provided in the sewage storage chamber (120) so as to pass compressed gas into the sewage storage chamber (120) to prevent solid suspended matter from accumulating and settling in the sewage storage chamber (120).
8. The cleaning device for the wire mesh demister according to claim 7, characterized in that: The filter element (500) is provided with a three-phase separator (530), and the cleaning agent passes through the three-phase separator (530) and the filter element (500) in sequence and then enters the drug recovery port (220); A first circulation pipe (540) is connected between the three-phase separator (530) and the aeration pipe (510), and the compressed gas in the cleaning agent after aeration passes through the three-phase separator (530) and the first circulation pipe (540) in turn and then returns to the aeration pipe (510).
9. The cleaning device for the wire mesh demister according to claim 4, characterized in that: It also includes a stirring component (420) and a filler (430), wherein the stirring component (420) is used to stir the liquid in the cleaning chamber (110), and the filler (430) is arranged in the cleaning chamber (110), and the filler (430) collides and rubs against the workpiece (450) under the drive of the flowing liquid; And / or, the cleaning device of the wire mesh demister further comprises an ultrasonic cleaner (440), wherein the ultrasonic cleaner (440) is arranged in the cleaning chamber (110) to perform ultrasonic cleaning on the workpiece (450).
10. A method for cleaning a wire mesh demister, characterized in that: The cleaning method is implemented by using the cleaning device of the wire mesh demister according to any one of claims 4 to 9, and the cleaning method comprises: A workpiece (450) is cleaned using the cleaning agent according to any one of claims 1 to 3, wherein the height of the cleaning agent liquid level is greater than the height of the workpiece (450), a filler (430) is added to the cleaning agent, and the cleaning agent is stirred when cleaning the workpiece (450), and the filler (430) collides and rubs against the workpiece (450) under the drive of the flowing cleaning agent; Ultrasonic vibration cleaning is used in the process of cleaning the workpiece (450), and after the workpiece (450) is cleaned with the cleaning agent, the workpiece (450) is rinsed with water; The cleaning agent after filtering and aeration cleaning the workpiece (450), if the pH value of the cleaning agent after use is less than or equal to 3.5 and the online TDS measurement value is less than or equal to 10000 mg / L, the cleaning agent after use can be reused; If the pH value of the water used to rinse the workpiece (450) is greater than or equal to 5, the water can be reused.