CN111167819B - System and method for harmless treatment of non-cured asphalt waterproofing paint - Google Patents
System and method for harmless treatment of non-cured asphalt waterproofing paint Download PDFInfo
- Publication number
- CN111167819B CN111167819B CN201911396438.5A CN201911396438A CN111167819B CN 111167819 B CN111167819 B CN 111167819B CN 201911396438 A CN201911396438 A CN 201911396438A CN 111167819 B CN111167819 B CN 111167819B
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- Prior art keywords
- flushing
- waterproof coating
- steam
- water
- asphalt waterproof
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0856—Cleaning of water-treatment installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/14—Paint wastes
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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
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
Abstract
The invention belongs to the technical field of pollutant treatment, and relates to a reaction system and a method for sludge resource utilization. The system comprises: a heat source, a steam producing device, a flushing mixture collecting device, a filtering device and a recycling device; the heat source is used for providing heat energy for the steam making device; the steam making device converts water into steam by utilizing heat energy; the flushing device is used for flushing the container with the residual non-cured asphalt waterproof coating by using water vapor so as to remove the non-cured asphalt waterproof coating in the container; the flushing mixture collecting device is used for collecting a flushing mixture of the non-solidified asphalt waterproof coating and water generated in the flushing process; the filtering device is used for filtering the flushing mixture; the recovery device is used for separating and recovering the non-solidified asphalt waterproof coating and water in the filtered flushing mixture. The system realizes harmless treatment on the non-cured asphalt waterproof coating, and has simple operation and low cost.
Description
Technical Field
The invention belongs to the technical field of pollutant treatment, and particularly relates to a system and a method for harmlessly treating a non-cured asphalt waterproof coating.
Background
The non-solidified asphalt waterproof paint is a waterproof paint which takes asphalt and rubber as main components and can keep paste for a long time. The non-cured asphalt waterproof coating has the characteristics of good creep property, adhesion, no curing and the like, thereby having wide applicability. The application of non-cured asphalt waterproof coatings in the waterproof field is increasing day by day. Before construction, the non-cured asphalt waterproof coating needs to be heated to facilitate construction. The non-cured asphalt waterproof coating is contained in a container such as a tank or a barrel for convenient transportation, storage and construction. After the construction is completed, a large amount of non-cured asphalt waterproofing paint remains on the wall of the container such as a tank or a drum, and the non-cured asphalt waterproofing paint must be subjected to a harmless treatment or adversely affects the surrounding environment.
Because the non-cured asphalt waterproof coating has the characteristics of strong adhesion and no curing, even if a tank or a barrel and other containers with the non-cured asphalt waterproof coating are heated during construction, the non-cured asphalt waterproof coating in the tank or the barrel cannot be cleaned. At present, the residual non-cured asphalt waterproof coating is mainly treated in the following ways at the construction site:
(1) and (5) high-temperature treatment. The residual non-solidification in the barrel is removed by high-temperature heating or even directly burning. Although simple, this method produces a large amount of smoke and polluted air.
(2) Soaking and cleaning with gasoline. After the barrel is soaked in gasoline, the non-cured asphalt waterproof coating in the barrel is easy to clean, but the mixture of the gasoline and the non-cured asphalt waterproof coating produced after cleaning is difficult to treat, and the gasoline is flammable and dangerous goods, so that potential safety hazards exist.
(3) And (6) wiping and cleaning. The non-solidified asphalt waterproof coating in the residual container can be cleaned up by manually wiping or scrubbing the container by means of rags, brushes and other tools, but the cleaning process is time-consuming and labor-consuming.
(4) And (5) performing hazardous waste treatment. As dangerous waste treatment, the operation procedure is complicated, the cost is high, and the construction cost of the non-cured asphalt waterproof coating can be increased.
Therefore, a harmless treatment method of the non-cured asphalt waterproof coating, which is simple to operate and low in cost, is needed.
Disclosure of Invention
The invention aims to provide a system and a method for harmlessly treating a non-cured asphalt waterproof coating, which are simple to operate and low in cost.
In order to achieve the above object, the present invention provides a system for harmless treatment of a non-curable asphalt waterproofing paint, the system comprising: a heat source, a steam generating device, a flushing mixture collecting device, a filtering device and a recovery device;
the heat source is used for providing heat energy for the steam making device;
the steam making device converts water into steam by using the heat energy;
the flushing device is used for flushing the container with the residual non-cured asphalt waterproof coating by using the water vapor so as to remove the non-cured asphalt waterproof coating in the container;
the flushing mixture collecting device is used for collecting a flushing mixture of the non-solidified asphalt waterproof coating and water generated in the flushing process;
the filtering device is used for filtering the flushing mixture;
the recovery device is used for separating and recovering the non-solidified asphalt waterproof coating and water in the filtered flushing mixture.
In one embodiment of the present invention, the heat source, the steam generating device, the flushing mixture collecting device, the filtering device, and the recovering device are sequentially communicated through a pipeline;
the heat source is also used to provide heat energy to the recovery device and the pipeline.
In the invention, the heat source provides heat energy for the recovery device and the pipeline, so that the system always keeps higher temperature, the non-cured asphalt waterproof coating keeps good fluidity, meanwhile, the adhesion on the inner wall of the non-cured asphalt waterproof coating pipeline is reduced, the operation efficiency of each device is improved, and particularly, the recovery device is accelerated to remove water in the flushing mixture.
In the invention, the flushing device is provided with a rotating spray head so as to conveniently flush the container from different angles. The flushing device is provided with a steam recovery device which is communicated with the steam making device and used for recovering the residual steam in the flushing process.
In the present invention, the heat source may be a boiler. The boiler may be a gas boiler or an electric boiler.
In the invention, the recovery device is a high-temperature kettle. The high-temperature kettle can separate the non-cured asphalt waterproof coating and water in the flushing mixture by standing water removal and heating water removal. Preferably, the high-temperature kettle has a water pumping function. The non-cured asphalt waterproof coating and water are automatically layered by utilizing the density difference and completely different surface properties of the non-cured asphalt waterproof coating and water through standing, after a layered interface is stable, open water is pumped out, the washing mixture is heated to remove water, the rest water is removed, and the non-cured asphalt waterproof coating and water are recycled for reuse.
In a second aspect, the present invention provides a method for the harmless treatment of a non-cured asphalt waterproofing paint, which is carried out in the above system, comprising the steps of:
s1, providing heat energy for the steam making device by the heat source;
s2, the steam making device converts water into steam by using the heat energy;
s3, the flushing device flushes the container with the residual non-cured asphalt waterproof coating by using the water vapor so as to remove the non-cured asphalt waterproof coating in the container;
s4, collecting the flushing mixture of the non-solidified asphalt waterproof coating and water generated in the flushing process by the flushing mixture collecting device;
s5, filtering the flushing mixture by using the filtering device;
s6, the recovery device separates and recovers the non-solidified asphalt waterproof coating and the water in the filtered flushing mixture.
Since the non-curable asphalt waterproofing paint is a heat-sensitive material and has enhanced fluidity when heated, the temperature of the steam is 135 ℃ or higher in step S2, and the non-curable asphalt waterproofing paint is quickly removed by flushing the inner wall of the container with high-temperature steam. The time for flushing the container can be determined by one skilled in the art according to the container cleaning condition, and the invention is not particularly limited herein.
In a preferred embodiment of the present invention, in step S3, the flushing device flushes the container with the residual non-cured asphalt waterproofing paint by using the steam to remove the non-cured asphalt waterproofing paint in the container, and the steam recovery device recovers the residual steam during the flushing process and returns the recovered residual steam to the steam generation device for recycling.
In a preferred embodiment of the present invention, in step S6, the recovery device sequentially performs standing water removal and heating water removal on the filtered flushing mixture, so that the non-cured asphalt waterproof coating in the flushing mixture is separated from water, and then recovers and utilizes the non-cured asphalt waterproof coating and the water, respectively.
The skilled in the art can determine the standing time required for standing to remove water from the rinsing mixture according to the actual situation, and the invention is not limited in this respect.
In a more preferred embodiment of the present invention, the heating to remove water includes two times of heating to remove water, wherein the temperature used for the first time of heating to remove water is 70 to 100 ℃, and the temperature used for the second time of heating to remove water is greater than 100 ℃ and less than or equal to 170 ℃.
According to the system for harmlessly treating the non-cured asphalt waterproof coating, the non-cured asphalt waterproof coating in the container is washed clean by high-temperature steam generated by the steam generating device, and a washing mixture of the non-cured asphalt waterproof coating and water generated after washing is collected, filtered and separated, so that the non-cured asphalt waterproof coating and the water are recycled, and the non-cured asphalt waterproof coating is harmlessly treated, and the system is simple to operate and low in cost.
The system for harmlessly treating the non-cured asphalt waterproof coating provided by the invention can recycle the residual water vapor in the washing process so as to realize energy conservation.
The method for harmlessly treating the non-cured asphalt waterproof coating can be used for harmlessly treating the non-cured asphalt waterproof coating, and is simple to operate and low in cost.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic diagram of a system for innocent treatment of a non-cured asphalt waterproofing coating provided by the present invention.
Description of the reference numerals
1. A heat source;
2. a steam producing device;
3. a flushing device;
4. flushing the mixture collection device;
5. a filtration device;
6. and (5) a recovery device.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein.
Example 1
The embodiment provides a system for harmless treatment of a non-cured asphalt waterproofing coating. Referring to fig. 1, fig. 1 is a schematic diagram illustrating a system for harmless treatment of a non-cured asphalt waterproofing paint according to the present invention. As shown in fig. 1, the system includes: a heat source 1, a steam making device 2, a flushing device 3, a flushing mixture collecting device 4, a filtering device 5 and a recovery device 6; the heat source 1 is used for providing heat energy for the steam making device 2; the steam making device 2 converts water into steam by using the heat energy; the flushing device 3 is used for flushing the container with the residual non-cured asphalt waterproof coating by using the water vapor so as to remove the non-cured asphalt waterproof coating in the container; the flushing mixture collecting device 4 is used for collecting flushing mixture of the non-solidified asphalt waterproof coating and water generated in the flushing process; the filtering device 5 is used for filtering the flushing mixture; the recovery device 6 is used for separating and recovering the non-solidified asphalt waterproof coating and water in the filtered flushing mixture.
Example 2
The embodiment provides a system for harmless treatment of a non-cured asphalt waterproofing coating. Referring to fig. 1, the system includes: the heat source 1, the steam making device 2, the flushing device 3, the flushing mixture collecting device 4, the filtering device 5 and the recovery device 6 are communicated in sequence through pipelines; the heat source 1 is a boiler and is used for providing heat energy for the steam making device 2; the steam making device 2 converts water into steam by using the heat energy; the flushing device 3 is provided with a rotary spray head and a steam recovery device, and the steam recovery device is communicated with the steam making device 2 and is used for flushing the container with the residual non-cured asphalt waterproof coating by using the water vapor so as to remove the non-cured asphalt waterproof coating in the container and recovering the residual water vapor in the flushing process; the flushing mixture collecting device 4 is used for collecting a flushing mixture of the non-solidified asphalt waterproof coating and water generated in the flushing process; the filtering device 5 is used for filtering the flushing mixture; the recovery device 6 is a high-temperature kettle which has a water pumping function and is used for separating and recovering the non-cured asphalt waterproof coating and water in the filtered flushing mixture.
Example 3
The embodiment provides a system for harmless treatment of a non-cured asphalt waterproofing coating. Referring to fig. 1, the system includes: the heat source 1, the steam making device 2, the flushing device 3, the flushing mixture collecting device 4, the filtering device 5 and the recovery device 6 are communicated in sequence through pipelines; the heat source 1 is a boiler and is used for providing heat energy for the steam making device 2 and providing heat energy for the recovery device 6 and the pipeline; the steam making device 2 converts water into steam by using the heat energy; the flushing device 3 is provided with a rotary spray head and a steam recovery device, and the steam recovery device is communicated with the steam making device 2 and is used for flushing the container with the residual non-cured asphalt waterproof coating by using the water vapor so as to remove the non-cured asphalt waterproof coating in the container and recovering the residual water vapor in the flushing process; the flushing mixture collecting device 4 is used for collecting flushing mixture of the non-solidified asphalt waterproof coating and water generated in the flushing process; the filtering device 5 is used for filtering the flushing mixture; the recovery device 6 is a high-temperature kettle which has a water pumping function and is used for separating and recovering the non-cured asphalt waterproof coating and water in the filtered flushing mixture.
Example 4
The embodiment provides a method for harmlessly treating a non-cured asphalt waterproof coating. Referring to fig. 1, the method is carried out in the system for the innocent treatment of a non-cured asphalt waterproofing paint of example 1, and comprises the following steps:
s1, the heat source 1 provides heat energy for the steam making device 2.
S2, the steam making device 2 converts water into steam by utilizing the heat energy, and the temperature of the steam is more than or equal to 135 ℃.
And S3, the flushing device 3 flushes the container with the residual non-cured asphalt waterproof coating by using the water vapor so as to remove the non-cured asphalt waterproof coating in the container.
And S4, collecting the flushing mixture of the non-solidified asphalt waterproof coating and water generated in the flushing process by the flushing mixture collecting device 4.
S5, the filter device 5 filters the flushing mixture.
S6, the recovery device 6 separates and recovers the non-solidified asphalt waterproof coating and the water in the filtered flushing mixture.
Example 5
The embodiment provides a method for harmlessly treating a non-cured asphalt waterproof coating. Referring to fig. 1, the method is carried out in the system for the innocent treatment of a non-cured asphalt waterproofing paint in example 2, and comprises the following steps:
s1, the heat source 1 provides heat energy for the steam making device 2.
S2, the steam making device 2 converts water into steam by utilizing the heat energy, and the temperature of the steam is more than or equal to 135 ℃.
S3, the flushing device 3 utilizes the vapor to flush the container that remains non-cured asphalt waterproof coating to get rid of the non-cured asphalt waterproof coating in the container, the steam recovery device is right the remaining vapor in the flushing process is retrieved, and will retrieve the remaining vapor returns to make steam device 2 cyclic utilization.
And S4, collecting the flushing mixture of the non-solidified asphalt waterproof coating and water generated in the flushing process by the flushing mixture collecting device 4.
S5, the filter device 5 filters the flushing mixture.
S6, the recovery device 6 conducts primary standing dewatering on the filtered flushing mixture, after most of water is pumped out, primary heating dewatering and secondary heating dewatering are conducted, the temperature used for the primary heating dewatering is 70-100 ℃, the temperature used for the secondary heating dewatering is larger than 100 ℃ and smaller than or equal to 170 ℃, so that the non-solidified asphalt waterproof coating and the water in the flushing mixture are separated, and then the non-solidified asphalt waterproof coating and the water are recycled respectively.
According to the embodiment, the system and the method for harmlessly treating the non-cured asphalt waterproof coating can realize harmlessness treatment on the non-cured asphalt waterproof coating, and are simple to operate and low in cost.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (7)
1. A method for detoxifying a non-cured asphalt waterproofing paint, wherein said method is performed in a system for detoxifying a non-cured asphalt waterproofing paint, the system comprising: a heat source (1), a steam making device (2), a flushing device (3), a flushing mixture collecting device (4), a filtering device (5) and a recovery device (6);
the heat source (1) is used for providing heat energy for the steam making device (2);
the steam generating device (2) converts water into steam by using the heat energy;
the flushing device (3) is used for flushing the container with the residual non-cured asphalt waterproof coating by using the water vapor so as to remove the non-cured asphalt waterproof coating in the container;
the flushing mixture collecting device (4) is used for collecting flushing mixture of non-solidified asphalt waterproof coating and water generated in the flushing process;
the flushing device (3) is provided with a steam recovery device which is communicated with the steam making device (2) and is used for recovering residual steam in the flushing process;
the filtering device (5) is used for filtering the flushing mixture;
the recovery device (6) is a high-temperature kettle with a water pumping function and is used for separating and recovering the non-cured asphalt waterproof coating and water in the filtered flushing mixture;
the method comprises the following steps;
s1, the heat source (1) provides heat energy for the steam making device (2);
s2, the steam making device (2) converts water into steam by utilizing the heat energy;
s3, the flushing device (3) flushes the container with the residual non-cured asphalt waterproof coating by using the water vapor so as to remove the non-cured asphalt waterproof coating in the container, and the steam recovery device recovers the residual water vapor in the flushing process and returns the recovered residual water vapor to the steam making device (2) for recycling;
s4, collecting the flushing mixture of the non-solidified asphalt waterproof coating and water generated in the flushing process by the flushing mixture collecting device (4);
s5, filtering the flushing mixture by the filtering device (5);
s6, the recovery device (6) sequentially carries out standing dewatering and heating dewatering on the filtered flushing mixture, so that the non-cured asphalt waterproof coating and the water in the flushing mixture are separated, and then the non-cured asphalt waterproof coating and the water are respectively recycled.
2. The method according to claim 1, characterized in that the heat source (1), the steam generating device (2), the flushing device (3), the flushing mixture collecting device (4), the filtering device (5) and the recovery device (6) are in turn in communication through a pipeline;
the heat source (1) is also used to provide thermal energy to the recovery device (6) and the pipeline.
3. Method according to claim 1 or 2, characterized in that the flushing device (3) has a rotating spray head.
4. A method according to claim 1 or 2, characterized in that the heat source (1) is a boiler.
5. The method of claim 4, wherein the boiler is a gas boiler or an electric boiler.
6. The method of claim 1, wherein in step S2, the temperature of the water vapor is greater than or equal to 135 ℃.
7. The method according to claim 1, wherein the heating to remove water comprises twice heating to remove water, wherein the temperature used for the first heating to remove water is 70-100 ℃, and the temperature used for the second heating to remove water is more than 100 ℃ and less than or equal to 170 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911396438.5A CN111167819B (en) | 2019-12-30 | 2019-12-30 | System and method for harmless treatment of non-cured asphalt waterproofing paint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911396438.5A CN111167819B (en) | 2019-12-30 | 2019-12-30 | System and method for harmless treatment of non-cured asphalt waterproofing paint |
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| CN111167819A CN111167819A (en) | 2020-05-19 |
| CN111167819B true CN111167819B (en) | 2022-08-26 |
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| CN206467085U (en) * | 2017-03-17 | 2017-09-05 | 禾信天成科技（天津）有限公司 | A kind of fluoro-containing coating waste water reclaiming device |
| CN108435475A (en) * | 2018-03-29 | 2018-08-24 | 刘静娴 | A kind of oil pipes road recovering device for coating |
| CN208533261U (en) * | 2017-12-12 | 2019-02-22 | 玖龙纸业（东莞）有限公司 | A kind of pair of reflux coating is screened and purified device |
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2019
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3046163A (en) * | 1960-04-06 | 1962-07-24 | Detrex Chem Ind | Method and apparatus for interiorly cleaning tanks and the like |
| US5425183A (en) * | 1991-12-04 | 1995-06-20 | Vacon Technologies, Inc. | Method and apparatus for producing and delivering solvent vapor to vessel interiors for treating residue deposits and coatings |
| CN104386770A (en) * | 2014-11-27 | 2015-03-04 | 天津市宏发双盛凡士林有限公司 | Vaseline recycling system |
| CN205518846U (en) * | 2016-01-28 | 2016-08-31 | 鞍钢股份有限公司 | Automatic washing unit of fatlute pipeline steam |
| CN206467085U (en) * | 2017-03-17 | 2017-09-05 | 禾信天成科技（天津）有限公司 | A kind of fluoro-containing coating waste water reclaiming device |
| CN208533261U (en) * | 2017-12-12 | 2019-02-22 | 玖龙纸业（东莞）有限公司 | A kind of pair of reflux coating is screened and purified device |
| CN108435475A (en) * | 2018-03-29 | 2018-08-24 | 刘静娴 | A kind of oil pipes road recovering device for coating |
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|---|---|
| CN111167819A (en) | 2020-05-19 |
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