CN111889451A - Method for cleaning plastic barrel by ultrasonic waves - Google Patents
Method for cleaning plastic barrel by ultrasonic waves Download PDFInfo
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- CN111889451A CN111889451A CN202010703707.4A CN202010703707A CN111889451A CN 111889451 A CN111889451 A CN 111889451A CN 202010703707 A CN202010703707 A CN 202010703707A CN 111889451 A CN111889451 A CN 111889451A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- 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
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B2017/001—Pretreating the materials before recovery
- B29B2017/0015—Washing, rinsing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention relates to the field of chemical industry, in particular to a method for cleaning a plastic barrel by ultrasonic waves; the method comprises the following steps: pre-treating a waste plastic barrel, cleaning by high-pressure jet, washing by clear water, cleaning and drying; according to the method for cleaning the plastic barrel by using the ultrasonic waves, firstly, a shear stress is formed on the interface of the stain and the plastic barrel by using a high-frequency ultrasonic technology, the binding force of the stain and the plastic barrel is weakened, then, the hot water containing a high-efficiency stain cleaning agent impacts the stain by using a high-pressure jet cleaning technology under the coordination of low-frequency ultrasonic waves, the processed stain is crushed into fine particles to be suspended in a cleaning medium, the cleaning process is accelerated by the mutual coordination of the ultrasonic waves and the high-pressure jet fine cleaning medium, the cleaning difficulty is reduced, the cleaning efficiency is increased, and the cleaning capability is improved; the invention is a green environment-friendly high-efficiency cleaning technology, which has the characteristics of water consumption, drug consumption saving, environmental protection and high efficiency, and is a green environment-friendly cleaning technology.
Description
Technical Field
The invention relates to the field of chemical industry, in particular to a method for cleaning a plastic barrel by ultrasonic waves.
Background
The waste plastic barrels are generally stained with various oil stains, dust, silt, garbage and the like to different degrees, impurities and attached pollutants must be cleaned, and the waste plastic barrels are recycled, so that the method is a very good resource treatment method. In the waste plastic regeneration industry of China, a plurality of enterprises still use the traditional cleaning process route so far, and various pollutants are difficult to thoroughly remove, so that the green economic added value of the product recycling is greatly reduced.
CN202606469U discloses plastic drum washs rotary device with higher security, including support frame and two backup pads (5) of setting in the support frame, be equipped with a plurality of groups rolling device between two backup pads (5), every group rolling device includes two pivot (6) and cup joints rim plate (7) at pivot (6) both ends, the both ends of pivot (6) are fixed on backup pad (5), and rim plate (7) are located between two backup pads (5). The utility model discloses an adopt above-mentioned structure, the range of motion that enables the device is less, avoids bringing unnecessary potential safety hazard, and the power consumption of whole device is also less moreover.
CN203695559U discloses an apparatus for cleaning viscous slurry-like medium attached to outer wall of plastic barrel, comprising: the first support frame is provided with a steel wire brush, a first motor for driving the steel wire brush to rotate and an adjusting rotating shaft for adjusting the position of the steel wire brush; the supporting rollers are respectively arranged on two sides of the second supporting frame, a water tank for containing cleaning water is arranged below the middle of the second supporting frame, and the supporting rollers are driven to rotate by a second motor; the metal barrel is arranged on the supporting carrier rollers at two sides of the second supporting frame, the lower edge of the metal barrel is immersed in water, the steel wire brush is arranged on the exposed part of the metal barrel, the steel wire brush is driven by the first motor to rotate at a high speed and rub with the outer wall of the metal barrel, so that semi-solid sludge adhered to the outer wall of the metal barrel is separated from the barrel wall under the action of friction force; the position of the wire brush is adjusted by adjusting the rotating shaft. The utility model discloses a realized the washing of mud class adhesion thing, do not produce secondary pollution such as raise dust and waste water simultaneously.
CN209647156U discloses the inside and outside cleaning machine of full-automatic plastic drum that closes of waste oil bucket washing usefulness, including organism and waste oil bucket, waste oil bucket is located inside the organism, frame one, frame two, frame three and frame four are installed on organism upper portion, frame one is located two one sides of frame, frame two is located three one sides of frame, frame three is located four one sides of frame, water tank and sprayer are installed on frame one upper portion, the water tank communicates with the sprayer each other, frame one inner wall is inlayed and is had the spray pipe, the sprayer is connected with the spray pipe, frame two, frame three and frame four structures all are the same with frame one structure. The utility model discloses a through setting up the sprinkler and washing the brush-holder stud, effectual clean waste oil bucket promotes the cleaning performance of cleaning machine, through setting up centrifugal oil filter, the inside spot of effectual filtration cleaning machine promotes the cyclic utilization of water resource, is fit for being extensively promoted and used.
In the prior art and the patents, a machine is used for replacing a manual method to clean a waste plastic barrel, and the problems of incomplete cleaning, high stain residual rate and high rework rate generally exist.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method of ultrasonically cleaning a plastic tub.
A method for cleaning a plastic barrel by ultrasonic waves comprises the following operation:
firstly, pre-treating a waste plastic barrel, namely firstly dumping the residual materials in the waste plastic barrel, and then treating the plastic barrel for 1-5min under ultrasonic;
step two, high-pressure jet cleaning, wherein the treated waste plastic barrel is cleaned by high-pressure jet in an ultrasonic environment, the cleaning medium for the high-pressure jet cleaning is hot water at the temperature of 65-80 ℃, the flushing pressure is 1.0-3.8MPa, and the flushing time is 30-80s, and the method is characterized in that the cleaning medium comprises 0.8-2.3% of cleaning agent and 0.8-1.6% of solid particles;
washing with clear water, namely washing the washed waste plastic barrel with clear water for 5-20s at a flow rate of 1-3 m/s;
and step four, cleaning and drying, namely cleaning residual water in the tank after cleaning, and cleaning the waste plastic barrel after hot air drying.
The cleaning agent is an efficient stain cleaning agent, and oleyl mercaptan is used as a raw material.
The cleaning agent is an efficient stain cleaning agent, and polyethylene glycol allyl methyl ether is used as a raw material.
The cleaning agent is a high-efficiency stain cleaning agent, tetramethyl (hydrogen) disiloxane, oleyl mercaptan and polyethylene glycol allyl methyl ether are subjected to hydrosilylation reaction,
the cleaning agent is an efficient stain cleaning agent, and the preparation method comprises the following steps:
the stain dissolving auxiliary agent is a metal surface stain dissolving auxiliary agent, and the preparation method comprises the following steps:
according to the mass parts, 70-80 parts of tetramethyl (hydrogen) disiloxane, 0.03-0.3 part of platinum-carbon catalyst and 300 parts of ethanol of 200-90 parts are added into a reaction kettle, stirred for 60-180min under the protection of nitrogen, then 10-20 parts of oleyl mercaptan and 50-90 parts of polyethylene glycol allyl methyl ether are slowly added into the reaction kettle, heated to 60-77 ℃, subjected to heat preservation reaction for 200min, then 2-7 parts of triethanolamine and 0.5-1 part of sodium citrate are added into the reaction kettle, the temperature is controlled to 60-75 ℃, stirred and mixed for 30-60min, 1000-2000 parts of water are added, and the platinum-carbon catalyst is removed through filtration, so that the efficient stain cleaning agent is obtained.
The equation of part of the reaction principle is as follows:
the ultrasonic frequency used in the ultrasonic treatment in the step one is 15-20 KHz.
And the ultrasonic frequency used in the ultrasonic environment in the step two is 5-10 KHz.
And the solid particles in the cleaning medium in the second step are heavy calcium carbonate or calcium hydrophosphate or calcium pyrophosphate.
And the waste plastic barrel is in an inverted state during the high-pressure jet cleaning treatment in the step two, so that the cleaning medium is conveniently discharged.
The invention relates to a method for cleaning a plastic barrel by ultrasonic waves, which comprises the steps of firstly adopting a high-frequency ultrasonic technology to form shear stress on an interface of a stain and the plastic barrel to weaken the binding force of the stain and the plastic barrel, then utilizing a high-pressure jet cleaning technology under the coordination of low-frequency ultrasonic waves to impact the stain with hot water containing a high-efficiency stain cleaning agent, processing the stain to be smashed into fine particles to be suspended in a cleaning medium, generating the high-efficiency stain cleaning agent by carrying out hydrosilylation reaction on tetramethyl (hydrogen) disiloxane, oleyl mercaptan and polyethylene glycol allyl methyl ether, having high compatibility with the stain, being easy to react and being capable of quickly decomposing the stain. The ultrasonic and high-pressure jet flow fine media are matched with each other to accelerate the cleaning process, so that the cleaning difficulty is reduced, the cleaning efficiency is increased, and the cleaning capability is improved; the invention is a green environment-friendly high-efficiency cleaning technology, which has the characteristics of water consumption, drug consumption saving, environmental protection and high efficiency, and is a green environment-friendly cleaning technology.
Drawings
FIG. 1 is a Fourier infrared spectrum of a sample of the high performance stain cleaner prepared in example 2.
At 695cm-1The expansion and contraction absorption peak of silicon carbon exists nearby, and is 800cm-1The symmetric stretching absorption peak of the silicon oxygen exists nearby, and is 2958cm-1A flexible absorption peak of carbon hydrogen exists nearby, which indicates that tetramethyl (hydrogen) disiloxane participates in the reaction; at 1116cm-1The antisymmetric telescopic absorption peak of ether bond exists nearby, which indicates that the polyethylene glycol allylThe methyl ether takes part in the reaction; at 728cm-1The expansion and contraction absorption peak of carbon and sulfur exists nearby, and is 2539cm-1A telescopic absorption peak of the hydrogen sulfide exists nearby, which indicates that the oleyl mercaptan participates in the reaction; at 1024cm-1A stretching absorption peak of a carbon-nitrogen single bond exists nearby, which indicates that triethanolamine participates in the reaction; at 1598cm-1An antisymmetric telescopic absorption peak of carboxylate ions exists nearby, which indicates that sodium citrate participates in the reaction.
Detailed Description
The invention is further illustrated by the following specific examples:
example 1
A method for cleaning a plastic barrel by ultrasonic waves comprises the following operation:
firstly, pre-treating a waste plastic barrel, namely firstly dumping the residual materials in the waste plastic barrel, and then treating the plastic barrel for 1min under ultrasonic;
step two, high-pressure jet cleaning, wherein the treated waste plastic barrel is cleaned by high-pressure jet in an ultrasonic environment, the cleaning medium for the high-pressure jet cleaning is hot water at 65 ℃, the flushing pressure is 1.0MPa, the flushing time is 30s, and the method is characterized in that the cleaning medium comprises 0.8% of cleaning agent and 0.8% of solid particles;
washing with clean water, namely washing the washed waste plastic barrel with clean water for 5s at a flow rate of 1 m/s;
and step four, cleaning and drying, namely cleaning residual water in the tank after cleaning, and cleaning the waste plastic barrel after hot air drying.
The cleaning agent is an efficient stain cleaning agent, and the preparation method comprises the following steps:
adding 70kg of tetramethyl (hydrogen) disiloxane, 0.3kg of platinum-carbon catalyst and 200kg of ethanol into a reaction kettle, stirring for 180min under the protection of nitrogen, then slowly adding 10kg of oleyl mercaptan and 50kg of polyethylene glycol allyl methyl ether into the reaction kettle, heating to 60 ℃, keeping the temperature for reaction for 100min, then adding 2kg of triethanolamine and 1kg of sodium citrate into the reaction kettle, controlling the temperature to 60 ℃, stirring and mixing for 60min, adding 1000kg of water, and filtering to remove the platinum-carbon catalyst, thus obtaining the efficient stain cleaning agent.
And step one, the ultrasonic frequency used for the ultrasonic treatment is 15 KHz.
And the ultrasonic frequency used in the ultrasonic environment in the step two is 5 KHz.
And the solid particles in the cleaning medium in the step two are heavy calcium carbonate.
And the waste plastic barrel is in an inverted state during the high-pressure jet cleaning treatment in the step two, so that the cleaning medium is conveniently discharged.
Example 2
A method for cleaning a plastic barrel by ultrasonic waves comprises the following operation:
firstly, pre-treating a waste plastic barrel, namely firstly dumping the residual materials in the waste plastic barrel, and then treating the plastic barrel for 3min under ultrasonic;
step two, high-pressure jet cleaning, wherein the treated waste plastic barrel is cleaned by high-pressure jet in an ultrasonic environment, the cleaning medium for the high-pressure jet cleaning is hot water at 70 ℃, the flushing pressure is 2.4MPa, the flushing time is 60s, and the method is characterized in that the cleaning medium comprises 1.6% of cleaning agent and 1.2% of solid particles;
washing with clean water, namely washing the washed waste plastic barrel with clean water for 15s at the flow rate of 2 m/s;
and step four, cleaning and drying, namely cleaning residual water in the tank after cleaning, and cleaning the waste plastic barrel after hot air drying.
The cleaning agent is an efficient stain cleaning agent, and the preparation method comprises the following steps:
adding 70kg of tetramethyl (hydrogen) disiloxane, 0.03kg of platinum-carbon catalyst and 200kg of ethanol into a reaction kettle, stirring for 60min under the protection of nitrogen, then slowly adding 10kg of oleyl mercaptan and 50kg of polyethylene glycol allyl methyl ether into the reaction kettle, heating to 60 ℃, keeping the temperature for reaction for 100min, then adding 2kg of triethanolamine and 0.5kg of sodium citrate into the reaction kettle, controlling the temperature to 60 ℃, stirring and mixing for 30min, adding 1000kg of water, and filtering to remove the platinum-carbon catalyst, thus obtaining the efficient stain cleaning agent.
And step one, the ultrasonic frequency used for the ultrasonic lower treatment is 18 KHz.
And the ultrasonic frequency used in the ultrasonic environment in the step two is 8 KHz.
And the solid particles in the cleaning medium in the step two are calcium hydrophosphate.
And the waste plastic barrel is in an inverted state during the high-pressure jet cleaning treatment in the step two, so that the cleaning medium is conveniently discharged.
Example 3
A method for cleaning a plastic barrel by ultrasonic waves comprises the following operation:
firstly, pre-treating a waste plastic barrel, namely firstly dumping the residual materials in the waste plastic barrel, and then treating the plastic barrel for 5min under ultrasonic;
step two, high-pressure jet cleaning, wherein the treated waste plastic barrel is cleaned by high-pressure jet in an ultrasonic environment, the cleaning medium for the high-pressure jet cleaning is hot water at 80 ℃, the flushing pressure is 3.8MPa, the flushing time is 80s, and the method is characterized in that the cleaning medium comprises 2.3% of cleaning agent and 1.6% of solid particles;
washing with clean water, namely washing the washed waste plastic barrel with clean water for 20s at the flow rate of 3 m/s;
and step four, cleaning and drying, namely cleaning residual water in the tank after cleaning, and cleaning the waste plastic barrel after hot air drying.
Adding 80kg of tetramethyl (hydrogen) disiloxane, 0.3kg of platinum-carbon catalyst and 300kg of ethanol into a reaction kettle, stirring for 180min under the protection of nitrogen, then slowly adding 20kg of oleyl mercaptan and 90kg of polyethylene glycol allyl methyl ether into the reaction kettle, heating to 77 ℃, keeping the temperature for reaction for 200min, then adding 7kg of triethanolamine and 1kg of sodium citrate into the reaction kettle, controlling the temperature to 75 ℃, stirring and mixing for 60min, adding 2000kg of water, and filtering to remove the platinum-carbon catalyst, thus obtaining the efficient stain cleaning agent.
And step one, the ultrasonic frequency used for the ultrasonic treatment is 20 KHz.
And the ultrasonic frequency used in the ultrasonic environment in the step two is 10 KHz.
And the solid particles in the cleaning medium in the second step are calcium pyrophosphate.
And the waste plastic barrel is in an inverted state during the high-pressure jet cleaning treatment in the step two, so that the cleaning medium is conveniently discharged.
Example 4
A method for cleaning a plastic barrel by ultrasonic waves comprises the following operation:
firstly, pre-treating a waste plastic barrel, namely firstly dumping the residual materials in the waste plastic barrel, and then treating the plastic barrel for 5min under ultrasonic;
step two, high-pressure jet cleaning, wherein the treated waste plastic barrel is cleaned by high-pressure jet in an ultrasonic environment, the cleaning medium for the high-pressure jet cleaning is hot water at 80 ℃, the flushing pressure is 3.8MPa, the flushing time is 80s, and the method is characterized in that the cleaning medium comprises 2.3% of cleaning agent and 1.6% of solid particles;
washing with clean water, namely washing the washed waste plastic barrel with clean water for 20s at the flow rate of 3 m/s;
and step four, cleaning and drying, namely cleaning residual water in the tank after cleaning, and cleaning the waste plastic barrel after hot air drying.
The cleaning agent is an efficient stain cleaning agent, and the preparation method comprises the following steps:
adding 70kg of tetramethyl (hydrogen) disiloxane, 0.3kg of platinum-carbon catalyst and 200kg of ethanol into a reaction kettle, stirring for 180min under the protection of nitrogen, then slowly adding 10kg of oleyl mercaptan and 50kg of polyethylene glycol allyl methyl ether into the reaction kettle, heating to 60 ℃, keeping the temperature for reaction for 100min, then adding 2kg of triethanolamine and 1kg of sodium citrate into the reaction kettle, controlling the temperature to 60 ℃, stirring and mixing for 60min, adding 100kg of water, and filtering to remove the platinum-carbon catalyst, thus obtaining the efficient stain cleaning agent.
And step one, the ultrasonic frequency used for the ultrasonic treatment is 15 KHz.
And the ultrasonic frequency used in the ultrasonic environment in the step two is 5 KHz.
And the solid particles in the cleaning medium in the step two are heavy calcium carbonate.
And the waste plastic barrel is in an inverted state during the high-pressure jet cleaning treatment in the step two, so that the cleaning medium is conveniently discharged.
Comparative example 1
The cleaning agent is an efficient stain cleaning agent, and the preparation method comprises the following steps:
adding 70kg of tetramethyl (hydrogen) disiloxane, 0.3kg of platinum-carbon catalyst and 200kg of ethanol into a reaction kettle, stirring for 180min under the protection of nitrogen, then slowly adding 50kg of polyethylene glycol allyl methyl ether into the reaction kettle, heating to 60 ℃, carrying out heat preservation reaction for 100min, then adding 2kg of triethanolamine and 1kg of sodium citrate into the reaction kettle, controlling the temperature to 60 ℃, stirring and mixing for 60min, adding 1000kg of water, and filtering to remove the platinum-carbon catalyst, thus obtaining the efficient stain cleaning agent.
Otherwise, the same procedure as in example 1 was repeated.
Comparative example 2
A method for cleaning a plastic barrel by ultrasonic waves comprises the following operation:
firstly, pre-treating a waste plastic barrel, namely firstly dumping the residual materials in the waste plastic barrel, and then treating the plastic barrel for 1min under ultrasonic;
step two, high-pressure jet cleaning, wherein the treated waste plastic barrel is cleaned by high-pressure jet in an ultrasonic environment, the cleaning medium for the high-pressure jet cleaning is hot water at 65 ℃, the flushing pressure is 1.0MPa, the flushing time is 30s, and the cleaning medium is characterized by comprising 0.8% of solid particles;
washing with clean water, namely washing the washed waste plastic barrel with clean water for 5s at a flow rate of 1 m/s;
and step four, cleaning and drying, namely cleaning residual water in the tank after cleaning, and cleaning the waste plastic barrel after hot air drying.
And step one, the ultrasonic frequency used for the ultrasonic treatment is 15 KHz.
And the ultrasonic frequency used in the ultrasonic environment in the step two is 5 KHz.
And the solid particles in the cleaning medium in the step two are heavy calcium carbonate.
And the waste plastic barrel is in an inverted state during the high-pressure jet cleaning treatment in the step two, so that the cleaning medium is conveniently discharged.
Comparative example 3
The cleaning agent is an efficient stain cleaning agent, and the preparation method comprises the following steps:
adding 70kg of tetramethyl (hydrogen) disiloxane, 0.3kg of platinum-carbon catalyst and 200kg of ethanol into a reaction kettle, stirring for 180min under the protection of nitrogen, then slowly adding 10kg of oleyl mercaptan into the reaction kettle, heating to 60 ℃, keeping the temperature for reaction for 100min, then adding 2kg of triethanolamine and 1kg of sodium citrate into the reaction kettle, controlling the temperature to 60 ℃, stirring and mixing for 60min, adding 1000kg of water, and filtering to remove the platinum-carbon catalyst to obtain the efficient stain cleaning agent.
Otherwise, the same procedure as in example 1 was repeated.
The waste plastic barrels cleaned in the above embodiments are all plastic barrels coated with paint, the number of the plastic barrels cleaned by the product prepared in each embodiment is 100, the residual rate of stains in the oil barrels is counted after cleaning, the waste plastic barrels with the residual rate of more than 5% need to be reworked, and the counting result is as follows:
| numbering | Average residual ratio (%) | Rework rate (%) |
| Example 1 | 0.81 | 1 |
| Example 2 | 0.64 | 0 |
| Example 3 | 0.28 | 0 |
| Example 4 | 0.46 | 0 |
| Comparative example 1 | 2.79 | 8 |
| Comparative example 2 | 4.31 | 14 |
| Comparative example 3 | 2.47 | 4 |
Claims (8)
1. A method for cleaning a plastic barrel by ultrasonic waves comprises the following operation:
firstly, pre-treating a waste plastic barrel, namely firstly dumping the residual materials in the waste plastic barrel, and then treating the plastic barrel for 1-5min under ultrasonic;
step two, high-pressure jet cleaning, wherein the treated waste plastic barrel is cleaned by high-pressure jet in an ultrasonic environment, the cleaning medium for the high-pressure jet cleaning is hot water at the temperature of 65-80 ℃, the flushing pressure is 1.0-3.8MPa, and the flushing time is 30-80s, and the method is characterized in that the cleaning medium comprises 0.8-2.3% of cleaning agent and 0.8-1.6% of solid particles;
washing with clear water, namely washing the washed waste plastic barrel with clear water for 5-20s at a flow rate of 1-3 m/s;
and step four, cleaning and drying, namely cleaning residual water in the tank after cleaning, and cleaning the waste plastic barrel after hot air drying.
The cleaning agent is an efficient stain cleaning agent, and oleyl mercaptan is used as a raw material.
2. A method of ultrasonically cleaning a plastic drum as claimed in claim 1, wherein: the cleaning agent is an efficient stain cleaning agent, and polyethylene glycol allyl methyl ether is used as a raw material.
3. A method of ultrasonically cleaning a plastic drum as claimed in claim 2, wherein: the efficient stain cleaning agent is prepared by carrying out hydrosilylation reaction on tetramethyl (hydrogen) disiloxane, oleyl mercaptan and polyethylene glycol allyl methyl ether.
4. A method of ultrasonically cleaning a plastic drum as claimed in claim 2, wherein: the preparation method of the efficient stain cleaning agent comprises the following steps:
according to the mass parts, 70-80 parts of tetramethyl (hydrogen) disiloxane, 0.03-0.3 part of platinum-carbon catalyst and 300 parts of ethanol of 200-90 parts are added into a reaction kettle, stirred for 60-180min under the protection of nitrogen, then 10-20 parts of oleyl mercaptan and 50-90 parts of polyethylene glycol allyl methyl ether are slowly added into the reaction kettle, heated to 60-77 ℃, subjected to heat preservation reaction for 200min, then 2-7 parts of triethanolamine and 0.5-1 part of sodium citrate are added into the reaction kettle, the temperature is controlled to 60-75 ℃, stirred and mixed for 30-60min, 1000-2000 parts of water are added, and the platinum-carbon catalyst is removed through filtration, so that the efficient stain cleaning agent is obtained.
5. A method of ultrasonically cleaning a plastic drum as claimed in claim 1, wherein: the ultrasonic frequency used in the ultrasonic treatment in the step one is 15-20 KHz.
6. A method of ultrasonically cleaning a plastic drum as claimed in claim 1, wherein: and the ultrasonic frequency used in the ultrasonic environment in the step two is 5-10 KHz.
7. A method of ultrasonically cleaning a plastic drum as claimed in claim 1, wherein: and the solid particles in the cleaning medium in the second step are heavy calcium carbonate or calcium hydrophosphate or calcium pyrophosphate.
8. A method of ultrasonically cleaning a plastic drum as claimed in claim 1, wherein: and the waste plastic barrel is in an inverted state during the high-pressure jet cleaning treatment in the step two, so that the cleaning medium is conveniently discharged.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803842A (en) * | 2021-09-08 | 2021-12-17 | 珠海格力电器股份有限公司 | Air conditioner descaling control method and system based on ultrasonic coupling resonance |
| CN113814246A (en) * | 2021-05-03 | 2021-12-21 | 浙江红狮环保股份有限公司 | Zero-emission waste barrel cleaning method |
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| CN113814246A (en) * | 2021-05-03 | 2021-12-21 | 浙江红狮环保股份有限公司 | Zero-emission waste barrel cleaning method |
| CN113803842A (en) * | 2021-09-08 | 2021-12-17 | 珠海格力电器股份有限公司 | Air conditioner descaling control method and system based on ultrasonic coupling resonance |
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Application publication date: 20201106 |