CN111151379A - Maintenance method of electrostatic dust removal equipment, cleaning method of dust collection module and cleaning agent - Google Patents
Maintenance method of electrostatic dust removal equipment, cleaning method of dust collection module and cleaning agent Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/74—Cleaning the electrodes
- B03C3/78—Cleaning the electrodes by washing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/86—Mixtures of anionic, cationic, and non-ionic compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/08—Silicates
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/62—Quaternary ammonium compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
A maintenance method of electrostatic dust removal equipment comprises the following steps: detecting, maintaining and cleaning the electrostatic dust removal equipment, detaching a dust collection module after the electrostatic dust removal equipment is repaired, replacing a clean dust collection module, debugging the clean dust collection module, and continuing to use the electrostatic dust removal equipment; packaging the disassembled dust collecting module, sending to a maintenance site, and primarily cleaning; after cleaning, the dust collecting module is detected and maintained, maintenance information is recorded, the dust collecting module which is qualified in detection is packaged, and the dust collecting module is sent to a cleaning place to be cleaned; and detecting and maintaining the cleaned dust collecting modules, recording maintenance information, and storing the qualified dust collecting modules for later use. The invention transports the clean dust collecting module to the using site, changes the dust-polluted dust collecting module, and then sends the polluted dust collecting module to a special cleaning place for cleaning. The powerful cleaning liquid is prepared, the cleaning efficiency and the working efficiency are improved through ultrasonic cleaning, the damage of the dust collecting module is reduced to the minimum, and the technical problem existing in the current high-voltage electrostatic equipment maintenance method is effectively solved.
Description
Technical Field
The invention relates to the technical field of electrostatic dust removal, in particular to a maintenance method of electrostatic dust removal equipment, a cleaning method of a built-in dust collection module of the electrostatic dust removal equipment and a cleaning agent.
Background
With the rapid development of air purification industry in China, various new technologies are continuously updated and applied in the whole industry. The electrostatic dust removal equipment is widely applied to office buildings, hotels, hospitals and large public places due to the advantages of low resistance, energy conservation, high-efficiency purification and the like. In Shenzhen subways, electrostatic precipitation equipment has almost become the standard configuration for each site. However, with the popularization of electrostatic dust collection equipment, the problems of later maintenance are gradually revealed, and the maintenance method thereof needs to be improved and innovated.
The maintenance of the electrostatic dust removal equipment mainly comprises two contents of equipment inspection and cleaning of a built-in dust collection module (hereinafter referred to as a module). The cleaning effect of the module is important, and the cleaning effect directly influences the purifying effect and the dust collecting amount of the electrostatic dust collection equipment. The existing maintenance method uses a high-pressure water gun to wash the module, and although the cleaning mode is simple, the method has the following defects:
(1) the module is easy to damage
The device is easy to cause secondary damage in the process of high-pressure water washing. The high-pressure water gun adopts the flushing principle that high-pressure water is generated by a high-pressure plunger pump to flush the surface of an object, and when the impact force of a water body is greater than the adhesive force of dirt, the dirt can be stripped by the high-pressure water, so that the aim of cleaning is fulfilled. Therefore, the water flow sprayed by the high-pressure water gun has high spraying speed and high pressure, the discharge tungsten filament in the lower module is easy to break under the high-pressure impact, and the dust collecting plate is easy to deform. After the washing, the damaged module is used continuously, which easily causes the equipment to generate sparks and even short circuit, thereby increasing the repair cost.
(2) Poor cleaning effect
Fire-fighting water is used for flushing in the field (the site where equipment is installed) and no special cleaning agent is used. In the washing process, the contact time of the surface of the module and water is very short, and solidified dirt on the module can not be fully softened and still has strong adhesive force. The cleaning rate (specifically, the cleanliness of the cleaned module = mass after dust collection-mass after cleaning/mass after dust collection-initial mass) of the single module cleaned by the high-pressure water gun is about 50% as measured by a gravimetric method experiment.
(3) Has high requirement on the field
And water supply and drainage facilities are not configured on the installation site of part of the electrostatic dust removal equipment, which brings difficulty to the flushing and maintenance of the high-pressure water gun. In order to solve the problem, the module is generally carried to a position near a water source by manpower for a long distance, a large amount of manpower and time are consumed, and the module is easy to damage in the carrying process.
The problems mentioned above all affect the use of the electrostatic dust removal equipment, increase the damage rate of the equipment and the later maintenance cost, and therefore the existing maintenance scheme needs to be improved and innovated. Therefore, how to overcome the defects that the modules easily damaged and the cleaning effect is poor, the requirement on the cleaning site is high and the like in the conventional electrostatic dust removal equipment during maintenance and cleaning is urgent to solve in the industry.
Disclosure of Invention
The invention provides a high-efficiency, safe and reliable maintenance method of electrostatic dust removal equipment, a cleaning method of a built-in dust collection module of the electrostatic dust removal equipment and a cleaning agent, and aims to solve the problems that modules are easy to damage, poor in cleaning effect and high in requirement on cleaning places, and the existing electrostatic dust removal equipment is easy to maintain and clean.
The invention provides a maintenance method of electrostatic dust removal equipment, which comprises the following steps:
the dust collecting module is characterized in that the dust collecting module is used for detecting the electrostatic dust removing equipment and the line box for removing dust, if the electrostatic dust removing equipment and the line box are repaired to have problems, the dust collecting module polluted by dust in the electrostatic dust removing equipment is dismounted after the electrostatic dust removing equipment is repaired, and then the qualified clean dust collecting module is installed in the electrostatic dust removing equipment and debugged to continue to be used.
Packaging the disassembled dust collecting module, conveying the packaged dust collecting module to a maintenance site, and then performing primary cleaning and dust removal;
detecting the cleaned dust collecting modules, maintaining problems, recording maintenance information, packaging the qualified dust collecting modules, and conveying the qualified dust collecting modules to a special cleaning place for cleaning;
and detecting and maintaining the cleaned dust collecting modules, recording maintenance information, and storing the qualified dust collecting modules for later use.
Further, the maintenance site is arranged with a special cleaning site.
The invention also provides a cleaning method of the dust collecting module, which comprises the following steps:
step 1: soaking the cleaning solution at elevated temperature
Adding 10-15% of cleaning fluid by mass into cleaning equipment, mixing and diluting the cleaning fluid by 20-45 times with water, heating to 30-40 ℃, and placing the dust collecting module to be cleaned into an anti-collision cleaning basket in the cleaning equipment to be soaked for 8-12 minutes;
step 2, cleaning
The cleaning equipment is ultrasonic cleaning equipment, the dust collecting module is cleaned by starting, the first-stage medium-frequency cleaning is carried out for 9-11 minutes, and the second-stage low-frequency cleaning is carried out for 5-7 minutes;
and step 3: rinsing and rinsing
The cleaned dust collecting module is firstly sprayed and cleaned in multiple angles and then rinsed by pure water; repeating the rinsing after rinsing process three to four times;
and 4, step 4: drying with hot air
And standing the washed and rinsed dust collecting module under constant-temperature and constant-current hot air at the temperature of 39-41 ℃ for baking for 9-11 minutes.
Furthermore, the ultrasonic cleaning equipment is uniformly distributed with 98 ultrasonic generators in total.
Further, the frequency of the first-stage intermediate frequency cleaning is 40 kHz; the frequency of the second stage low frequency cleaning is 28 kHz.
Further, the cleaning solution is a compound non-phosphorus water-based metal cleaning solution.
The compound phosphorus-free water-based metal cleaning solution provided by the invention is prepared by mixing the following raw materials in equal proportion, adding water and preparing into an aqueous solution with the mass fraction of 10% -15%:
14.6 percent of anionic surfactant, 2.5 percent of cationic nonionic surfactant,
6% of nonionic surfactant, 8% of builder and 2% of biological enzyme by mass;
the builder is an aqueous solution prepared by mixing maleic anhydride acrylic acid polymer sodium salt (Na-CP 4) and sodium silicate according to a mass ratio of 4:1 and adding water to the mixture to prepare the aqueous solution with a mass fraction of 8%.
Further, the anionic surfactant is fatty alcohol-polyoxyethylene ether-methionine; the cationic surfactant is a dimethyl ammonium halide allylamine copolymer; the nonionic surfactant is oleamide.
The invention transports the dust collecting module which is cleaned and detected to be qualified in advance to a use site, replaces the dust-polluted dust collecting module, and then cleans the polluted dust collecting module in a special cleaning place. Compared with the prior art: the invention does not need to carry out cleaning work on site, and does not need to have a water source and a drainage facility on site; the operation of replacing the dust collecting module in the use field is simple and the time is short. The maintenance time can be shortened to one fourth of the original time. In public buildings, the electrostatic dust removal equipment can only be maintained at night, so that the field maintenance time of single equipment is reduced, and the cleaning efficiency can be improved;
the module under will replacing is concentrated and is detected the washing, and the cleaning efficiency is higher, cooperates professional reasonable cleaning equipment, cleaning process, and the cleaning performance is high-quality and can not cause the damage to the module.
Compared with the traditional solvent type and semi-soluble metal cleaning solution, the water-based cleaning solution provided by the invention is nontoxic and free of phosphorus, and is safer and more environment-friendly; the cleaning solution maintains an efficient cleaning rate. And has the characteristics of high decontamination rate, strong corrosion resistance and strong rust resistance. The traditional water-based cleaning solution contains phosphorus and can cause the environmental problem of water eutrophication when being discharged into rivers and lakes. The cleaning solution provided by the invention has the advantages of simple production process and low cost.
Drawings
FIG. 1 is a schematic flow diagram of a prior art method of maintaining an electrostatic precipitation apparatus;
FIG. 2 is a schematic flow chart of an embodiment of the method of maintaining an electrostatic precipitator apparatus according to the present invention;
FIG. 3 is a schematic flow chart of an embodiment of a cleaning method of a dust collecting module for an electrostatic precipitator.
Detailed Description
The invention is described in detail below with reference to the following figures and examples:
fig. 1 is a schematic flow chart of a conventional method for maintaining an electrostatic precipitator. All cleaning work of the method is completed in a cleaning site. According to statistics, the field maintenance time of a single electrostatic dust removal device is as long as 3 hours, and the time is mainly consumed in three aspects: carrying the module, flushing by a high-pressure water gun and cleaning accumulated water in site. In order to overcome the defects of the prior art, the invention replaces the on-site high-pressure water washing maintenance method by replacing the old dust collecting module with the new dust collecting module and transferring the old module polluted by dust to a special maintenance and protection on-site cleaning mode. As shown in fig. 2. Through the mode that the module was changed, the time of on-the-spot cleaning module and on-the-spot clearance sewage ponding can be saved. According to data statistics, the field maintenance time of a single electrostatic dust removal device is shortened to 40 minutes. And the operation is simpler than the maintenance and cleaning operation of the equipment using field, and is not limited by the field.
As shown in fig. 2, the maintenance method of an electrostatic dust removal device provided by the present invention includes the following steps:
the first step is as follows: the dust collection module is characterized in that the dust collection module is used for detecting the electrostatic dust collection equipment and the line box for removing dust, if the electrostatic dust collection equipment and the line box are repaired to have problems, the dust collection module polluted by dust in the electrostatic dust collection equipment is dismounted after the electrostatic dust collection equipment is repaired, and then the qualified clean dust collection module with the same model or specification is installed in the electrostatic dust collection equipment and debugged, so that the equipment is continuously used.
The second step is that: and packaging the detached dust-polluted dust collection module, conveying the dust collection module to a special maintenance site, and then performing primary cleaning and dust removal.
The third step: the cleaned dust collecting modules are detected, the problem is maintained, maintenance information is recorded, the dust collecting modules qualified in detection are packaged, and then the dust collecting modules are conveyed to a special cleaning place to be cleaned.
And fourthly, detecting and maintaining the cleaned dust collecting modules, recording information such as maintenance, model specifications and the like, and storing the qualified dust collecting modules for later use.
Conditionally, the maintenance site and the cleaning site can be set together to improve the work efficiency.
For dust collecting modules contaminated by dust detached from an electrostatic precipitator, the present invention also provides a highly efficient and reliable cleaning method, comprising the following steps, as shown in fig. 3:
step 1: soaking the cleaning solution at elevated temperature
Adding 10-15% of cleaning solution by mass into tap water in cleaning equipment, mixing and diluting by 20-45 times, wherein the specific dilution times are determined according to the service time of the electrostatic dust collection equipment, and the longer the service time is, the smaller the dilution times are; the shorter the time of use, the greater the dilution factor. The cleaning liquid is heated by electric heating of the equipment, the temperature of the cleaning liquid is controlled to be 30-40 ℃, the activity of the biological enzyme is improved, and meanwhile, the activity of molecules is improved, so that the dirt is softened. And (3) placing the dust collecting module to be cleaned into the anti-collision cleaning basket to be soaked for 8-12 minutes, preferably for 10 minutes, so that the cleaning liquid can perform a physical and chemical reaction to fully soften the solidified dust dirt, and wash off animal and vegetable oil and rust products. The cleaning efficiency is improved, and meanwhile, the damage to the module caused by long-time soaking is reduced.
Step 2: cleaning of
The cleaning equipment adopts ultrasonic cleaning equipment, 98 ultrasonic generators are uniformly distributed on each wall surface of the ultrasonic cleaning equipment, the ultrasonic cleaning equipment is started to carry out all-dimensional cleaning on the dust collecting module, and the cleaning time is 14-18 minutes. In the first stage, the medium-frequency cleaning is carried out for 9-11 minutes, preferably 10 minutes. The frequency of the medium-frequency cleaning is kept at 40kHz, namely the vibration frequency per minute is 40000 times, and dust on the surface of the dust collecting module can be quickly washed away and loosened dirt can be softened. And in the second stage, low-frequency cleaning is carried out for 5-7 minutes, preferably 6 minutes, and the frequency of the low-frequency cleaning is kept at 28 kHz. That is, 28000 vibrations per minute, under the lower frequency vibration of 28kHz, the cleaning liquid is compressed and sparsely acted for a long time interval, so that bubbles generated by cavitation grow to a larger size, ions generated by bubble breakage vibrate more strongly, and the acting force on the surface of a cleaned workpiece is stronger. Used for cleaning solidified dust and rust products on the surface of the dust collecting module. The ultrasonic cleaning technology does not cause any damage to the dust collecting module.
And step 3: rinsing and rinsing
And firstly, a group of cleaning spray pipes are used for cleaning the dust collecting module, and the dust collecting module is sprayed and washed at multiple angles and then rinsed by pure water.
The cleaning solution and impurities remained on the surface of the cleaning dust collecting module are carried away from the surface of the dust collecting module. The rinsing process after the washing is repeated for three to four times, so that incomplete washing is prevented, and the corrosion of the local position of the surface of the dust collection module caused by liquid residue is prevented.
And 4, step 4: drying with hot air
And standing the rinsed dust collection module under constant-temperature and constant-current hot air at 39-41 ℃ (preferably 40 ℃), and baking for 9-11 minutes, preferably 10 minutes to obtain the cleaned dust collection module. Compared with standing and airing, the efficiency is improved, and meanwhile, damage caused by metal corrosion can be greatly reduced.
During actual cleaning, the dust collecting module to be cleaned can be subjected to preliminary detection before soaking, the problem is maintained well, and the qualified dust collecting module to be detected is placed in the cleaning equipment to be soaked and cleaned. After drying, the integrated module is checked, the problem is repaired, the maintenance information is recorded, the qualified dust collecting module is stored for standby,
the cleaning solution for cleaning the dust-polluted dust collecting module is a compound phosphorus-free water-based metal cleaning solution, and is prepared by mixing the following raw materials in equal proportion, adding water to prepare an aqueous solution with the mass fraction of 10% -15%:
14.6 percent of anionic surfactant, 2.5 percent of cationic nonionic surfactant,
6 percent of nonionic surfactant, 8 percent of builder and 2 percent of biological enzyme.
The mass fraction is the percentage of the mass of the solution to the mass of the solution. Example (c): 2g of biological enzyme is taken and mixed with 100g of clear water, and the mass fraction of the mixed solution is 2%. The mass fractions of the other materials have the same meaning.
The builder is an aqueous solution prepared by mixing maleic anhydride acrylic acid polymer sodium salt (Na-CP 4) and sodium silicate according to a mass ratio of 4:1 and adding water to the mixture to prepare the aqueous solution with a mass fraction of 8%.
In this embodiment, the anionic surfactant is preferably fatty alcohol polyoxyethylene ether thiamine. The cationic surfactant is preferably a dimethylammonium halide allylamine copolymer. The nonionic surfactant is preferably oleamide.
As for the single dust collecting module cleaned by the cleaning method, the cleaning rate is increased to 98.17 percent through the test of a weight recording method, and is increased by 1.17 times compared with the cleaning rate of the high-pressure water gun for washing. The method aims at solving the two problems that the high-pressure water gun has poor washing effect and the module is easy to damage. The invention transports the dust collecting module which is cleaned and detected to be qualified in advance to a use site, replaces the dust-polluted dust collecting module, and then cleans the polluted dust collecting module in a special cleaning place. The invention innovatively introduces an ultrasonic cleaning technology, utilizes professional equipment, reasonable cleaning procedures and special configuration of a compound phosphorus-free water-based metal cleaning solution, and strips solidified dust from the dust collecting module by using the principle of generating particle oscillation through cavitation, thereby improving the cleaning rate and the working efficiency. The damage of the dust collecting module can be reduced to the minimum, and the problem of the current high-voltage electrostatic equipment maintenance method is effectively solved.
The above-mentioned embodiments are mainly intended to illustrate the inventive concept, and it should be noted that those skilled in the art may make various changes and modifications without departing from the inventive concept, and all such changes and modifications are within the scope of the present invention.
Claims (8)
1. A maintenance method of electrostatic dust removal equipment comprises the following steps:
firstly, detecting the electrostatic dust removal equipment and the line box for deashing, if the electrostatic dust removal equipment and the line box are repaired, removing a dust collection module polluted by dust in the electrostatic dust removal equipment after the electrostatic dust removal equipment and the line box are repaired, and then installing a clean dust collection module qualified in the electrostatic dust removal equipment, debugging the clean dust collection module, and continuing to use the clean dust collection module;
packaging the disassembled dust collecting module, conveying the packaged dust collecting module to a maintenance site, and then performing primary cleaning and dust removal;
detecting the cleaned dust collecting modules, maintaining problems, recording maintenance information, packaging the qualified dust collecting modules, and conveying the qualified dust collecting modules to a special cleaning place for cleaning;
and detecting and maintaining the cleaned dust collecting modules, recording maintenance information, and storing the qualified dust collecting modules for later use.
2. The maintenance method of claim 1, wherein said maintenance site and said cleaning site are located together.
3. A method of cleaning a dust collection module according to claim 1 or 2, comprising the steps of:
step 1: soaking the cleaning solution at elevated temperature
Adding 10-15% of cleaning fluid by mass into cleaning equipment, mixing and diluting the cleaning fluid by 20-45 times with water, heating to 30-40 ℃, and placing the dust collecting module to be cleaned into an anti-collision cleaning basket in the cleaning equipment to be soaked for 8-12 minutes;
step 2, cleaning
The cleaning equipment is ultrasonic cleaning equipment, the dust collecting module is cleaned by starting, the first-stage medium-frequency cleaning is carried out for 9-11 minutes, and the second-stage low-frequency cleaning is carried out for 5-7 minutes;
and step 3: rinsing and rinsing
The cleaned dust collecting module is firstly sprayed and cleaned in multiple angles and then rinsed by pure water; repeating the rinsing after rinsing process three to four times;
and 4, step 4: drying with hot air
And standing the washed and rinsed dust collecting module under constant-temperature and constant-current hot air at the temperature of 39-41 ℃ for baking for 9-11 minutes.
4. The cleaning method according to claim 3, wherein the ultrasonic cleaning apparatus uniformly distributes a total of 98 ultrasonic generators.
5. The cleaning method according to claim 3, wherein the frequency of the first-stage intermediate frequency cleaning is 40 kHz; the frequency of the second stage low frequency cleaning is 28 kHz.
6. The maintenance method according to claim 3, wherein the cleaning solution is a composite phosphorus-free water-based metal cleaning solution.
7. The cleaning solution in the cleaning method of claim 3 is prepared by mixing the following raw materials in equal proportion, adding water, and preparing into an aqueous solution with the mass fraction of 10% -15%:
14.6 percent of anionic surfactant, 2.5 percent of cationic nonionic surfactant,
6% of nonionic surfactant, 8% of builder and 2% of biological enzyme by mass;
the builder is an aqueous solution prepared by mixing maleic anhydride acrylic acid polymer sodium salt (Na-CP 4) and sodium silicate according to a mass ratio of 4:1 and adding water to the mixture to prepare the aqueous solution with a mass fraction of 8%.
8. The cleaning solution according to claim 7, wherein the anionic surfactant is fatty alcohol polyoxyethylene ether-thionine; the cationic surfactant is a dimethyl ammonium halide allylamine copolymer; the nonionic surfactant is oleamide.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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