CN111423009A - Intelligent circulation treatment method and device for paint mist spray water - Google Patents
Intelligent circulation treatment method and device for paint mist spray water Download PDFInfo
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
- C02F1/766—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens by means of halogens other than chlorine or of halogenated compounds containing halogen other than chlorine
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The intelligent circulating treatment method of the paint mist spray water comprises the following steps: the spraying water of the paint mist to be treated enters the treatment tank from a valve I, the primary dosing pump is started to quantitatively add the liquid medicine in the primary dosing tank, and simultaneously, a blower and an ozone generator of the oxygen-enriched aeration device are started; starting a second-stage dosing pump to quantitatively add the liquid medicine in the second-stage dosing tank, and after the air flotation and the stirring are uniform, starting a water pump to pump paint mist spray water in the treatment process into a settling tank; under the action of the medicament, solid impurities and harmful substances are gradually separated from clear water, and precipitate and gather at the conical bottom of the settling tank to form solid slag; after the precipitation is finished, opening a valve II, starting a slag treatment device, dehydrating the precipitated solid slag, and extruding the solid slag into blocks; and after the slag treatment is finished, starting a water filter to filter the treated paint mist spray water for reuse. The method has low energy consumption, low material consumption, long-term water recycling, and convenient operation. If the device can be popularized, considerable benefits are certainly brought.
Description
Technical Field
The invention relates to the field of paint mist spray water treatment, in particular to an intelligent circulation treatment method and device for paint mist spray water.
Background
In the current society, paint mist waste gas (VOCs for short) generated in the coating process is collected and then is subjected to pretreatment by water spraying. In order to promote energy conservation and emission reduction, water in the operation process of the spray tower is recycled. After a period of operation, the concentration of organic matter in the water will gradually increase. Less water, high organic concentration, complex components, poor biodegradability and certain toxicity. In order to ensure the capture efficiency of the spray water on the paint mist and relieve the operating pressure of subsequent equipment, the water quality of the spray water needs to be maintained, and the content of organic matters in the water body is reduced. Therefore, in normal operation, the spraying water is independently added with (paint mist) a coating wastewater treatment device according to actual conditions. Or be treated together with other waste water produced in the plant.
The invention discloses an SBBR sewage treatment device and method with application number CN201910781242.1 and high-efficiency nitrogen and phosphorus removal, belonging to the field of environment-friendly sewage treatment. The invention combines the SBBR sewage treatment process and the side-stream phosphorus removal process to realize the high-efficiency nitrogen and phosphorus removal method, has strong operability and has practical popularization significance. The invention can greatly reduce the usage amount of an external carbon source and a flocculating agent, effectively improve the biological phosphorus removal efficiency, and has the effective phosphorus removal rate of over 95 percent. In addition, the invention reflects the total nitrogen content in water through the change of the pH value, can accurately control the addition of an external carbon source through a control program, further strengthens the denitrification process of biological denitrification, and ensures that the water quality of the effluent of the device can stably reach the discharge standard through the denitrification and dephosphorization method. Has better commercial application prospect. However, the method has a disadvantage that the treatment effect of the paint mist spray water with complicated components is not good, so the method is still to be improved.
Disclosure of Invention
The invention aims to provide a device and a method which can remove organic impurities, harmful substances and odor in paint mist spray water and enable the water to be recycled for a long time. The technical scheme adopted by the invention for solving the technical problems is as follows: the paint mist spray water treatment device comprises a treatment tank, an oxygen-enriched aeration device, a dosing device, a water pump, a settling tank, an intelligent controller, a slag treatment device and a water filter.
The method is characterized in that: the processing tank is a semi-closed tank body, the upper portion outside is equipped with valve I and connects pending coating cloud shower water, inside top is equipped with level gauge I, the below is equipped with the aeration pipe, be connected with oxygen boosting aeration equipment through the pipeline, upper portion side trompil is connected with charge device, open the bottom has the outlet, through pipeline and water pump, the gunbarrel is connected, the gunbarrel is at the bottom of the toper, the relative sealed tank body, inside top is equipped with level gauge II, the bottom trompil is equipped with valve II, be connected with sediment processing apparatus through the pipeline, lower part side opening, be connected with the drainage filter through the pipeline.
As an improvement, the oxygen-enriched aeration device consists of a blower and an ozone generator and is connected with an aeration pipe in the treatment tank through a pipeline.
As an improvement, the dosing device consists of a first-stage dosing pump, a first-stage dosing tank, a second-stage dosing pump and a second-stage dosing tank, and is connected to the treatment tank through a pipeline.
As improvement, the intelligent controller is respectively connected with the valve I, the liquid level meter I, the primary dosing pump, the secondary dosing pump, the oxygen-enriched aeration device, the water pump and the liquid level meter II through leads, the intelligent controller is composed of a touch operation screen and a single chip microcomputer, the touch operation screen can set a starting period, parameters and the like, the single chip microcomputer can record, store and analyze data such as collected liquid levels, and the on-off and valve opening and closing of the water pump, the dosing pump and the aeration device are controlled through a relay according to detection results.
The number of the settling tanks is designed to be 1-200 as an improvement.
As an improvement, the intelligent circulating treatment method of the paint mist spray water comprises the following steps,
firstly, paint mist spray water to be treated enters a treatment tank from a valve I, when an intelligent controller detects that a liquid level meter I reaches set liquid level data, the valve I is closed, a primary dosing pump is started to quantitatively add liquid medicine in a primary dosing tank, and meanwhile, a blower and an ozone generator of an oxygen-enriched aeration device are started to fully oxidize and react organic matters and harmful substances in the paint mist spray water, so that the paint mist spray water loses dissolubility and is gradually separated from water, and the oxygen-enriched aeration device simultaneously plays a role in air flotation stirring;
after the treatment process reaches the preset time, starting a second-stage dosing pump to quantitatively add the liquid medicine in a second-stage dosing tank, after air floatation and stirring are uniform, starting a water pump to pump paint mist spray water in the treatment process into a settling tank, controlling the paint mist spray water to be pumped into different settling tanks according to a signal of a liquid level meter II in the settling tank, and simultaneously stopping an oxygen-enriched aeration device to wait for the next treatment process;
thirdly, under the action of the medicament, solid impurities and harmful substances are gradually separated from clear water, and the sediment is accumulated to the conical bottom of the settling tank to form solid slag;
fourthly, after the precipitation is finished, opening the valve II, starting the slag treatment device, dehydrating and extruding the precipitated solid slag into blocks, and facilitating transportation and treatment;
and fifthly, after the slag treatment is finished, starting a water filter to filter the treated paint mist spray water for reuse.
Compared with the prior art, the method has the advantages of simple process, good treatment effect, cost saving, no environmental pollution, direct recycling without post-treatment, greatly improved resource utilization rate and worth of application and popularization.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the paint mist spray water treatment device of the embodiment comprises a treatment tank 1, an oxygen-enriched aeration device 2, a dosing device 3, a water pump 4, a settling tank 5, an intelligent controller 6, a slag treatment device 7 and a water filter 8.
The method is characterized in that: the treatment tank 1 is a semi-closed tank body, the upper part outside is equipped with valve I11 and connects the pending paint mist spray water, inside top is equipped with level gauge I12, the below is equipped with aeration pipe 13, be connected with oxygen boosting aeration equipment 2 through the pipeline, upper portion side trompil is connected with charge device 3, open the bottom has outlet 14, through pipeline and water pump 4, the gunbarrel 5 is connected, gunbarrel 5 is the toper end relatively sealed tank body, inside top is equipped with level gauge II 54, the bottom trompil is equipped with valve II 53, be connected with sediment processing apparatus 7 through the pipeline, lower part side opening, be connected with water purifier 8 through the pipeline.
The oxygen-enriched aeration device 2 consists of a blower 21 and an ozone generator 22 and is connected with an aeration pipe 13 in the treatment tank 1 through a pipeline.
The dosing device 3 is composed of a first-level dosing pump 31, a first-level dosing tank 32, a second-level dosing pump 33 and a second-level dosing tank 34, and is connected to the treatment tank 1 through a pipeline.
Intelligent control ware 6 passes through the wire with valve I11, level gauge I12, one-level dosing pump 31, second grade dosing pump 33, oxygen boosting aeration equipment 2, water pump 4, level gauge II 54 respectively and is connected, intelligent control ware 6 comprises touch operation screen, singlechip, and touch operation screen can set for start-up cycle, operating time isoparametric, and the singlechip can record, save and analyze data such as the liquid level of gathering, passes through the opening and shutting of relay control water pump 4, one-level dosing pump 31, second grade dosing pump 33, aeration equipment 2, valve switching according to the testing result.
The number of the settling tanks 5 is designed to be 1-200.
The intelligent circulating treatment method of the paint mist spray water comprises the following steps,
the utility model provides a, pending coating cloud shower water enters into to treatment tank 1 from valve I11, when intelligent control ware 6 detects level gauge I12 and reaches and sets for the liquid level data, valve I11 is closed, one-level dosing pump 31 starts to add the liquid medicine ration in the one-level dosing tank 32, start air-blower 21 and ozone generator 22 of oxygen-enriched aeration equipment 2 simultaneously, spray aquatic organic matter and harmful substance with the coating cloud and fully oxidize, the reaction, lose the solubility, progressively with the separation of water, oxygen-enriched aeration equipment 2 plays the air supporting stirring effect simultaneously:
after the treatment process reaches the preset time, starting a secondary dosing pump 33 to quantitatively add the liquid medicine in a secondary dosing tank 34, after uniform air flotation stirring, starting a water pump 4 to pump the paint mist spray water in the treatment process into a settling tank 5, controlling the paint mist spray water to be pumped into different settling tanks 5 according to a signal of a liquid level meter II 54 in the settling tank 5, and simultaneously stopping the oxygen-enriched aeration device 2 to wait for the next treatment process;
thirdly, under the action of the medicament, solid impurities and harmful substances in the paint mist spray water entering the settling tank 5 are gradually separated from the clear water 51, and the sediment is accumulated to the conical bottom of the settling tank 5 to form solid slag 52;
fourthly, after the precipitation is finished, opening the valve II 53, starting the slag treatment device 7, dehydrating and extruding the precipitated solid slag 52 into blocks, and facilitating transportation and treatment;
and fifthly, after the slag treatment is finished, starting the water filter 8 to filter the treated clean water 51 for reuse.
The medicament in the first-level medicament adding tank 32 is 1-50% of oxidant KMnO4、K2Cr2O7、CLO2、H2O2One, two, three, four and five of the five NaClO materials are combined, and the adding dose is 1-20 percent
The reagents in the secondary dosing tank 34 are flocculating settling agents PAM, PAC and FeSO4One, two, three or four of the four materials of the polymeric aluminum iron are combined, and the adding dosage is 0.01 to 20 percent
Adding the first-class medicament to react for 10-120 minutes
The precipitation time is 1-12 hours
Example one
Spraying water for paint mist to be treated: 3 tons, grey black, light-tight and no precipitate.
The processing method comprises the following steps:
firstly, a treatment tank 1 with the volume of 4 is selected, spray water of paint mist to be treated enters the treatment tank 1 from a valve I11, a primary dosing pump 31 is started to quantitatively dose medicine liquid in a primary dosing tank 32, a blower 21 and an ozone generator 22 of an oxygen-enriched aeration device 2 are started at the same time, and the medicine is selected from 5% H2O2The adding amount is 2 percent, organic matters and harmful substances in the paint mist spraying water are fully reacted to lose the solubility and are gradually separated from water;
and secondly, after the treatment process reaches the preset time, starting a secondary dosing pump 33 to quantitatively add the liquid medicine in a secondary dosing tank 34, wherein the dosage of the medicine is 0.04% of PAM. After the air flotation and the stirring are uniform, starting a water pump 4 to pump paint mist spray water in the treatment process into a settling tank 5, selecting a tank body with the volume of 5 for the settling tank 5, stopping the oxygen-enriched aeration device 2 at the same time, and waiting for the next treatment process;
thirdly, under the action of the medicament, solid impurities and harmful substances in the paint mist spray water entering the settling tank 5 are gradually separated from the clear water 51, and the sediment is accumulated to the conical bottom of the settling tank 5 to form solid slag 52;
fourthly, after the precipitation is finished, opening the valve II 53, starting the slag treatment device 7, dehydrating and extruding the precipitated solid slag 52 into blocks, and facilitating transportation and treatment;
and fifthly, after the slag treatment is finished, starting the water filter 8 to filter the treated clean water 51 for reuse.
The treatment effect is as follows:
the treated water is clean and transparent, and various indexes are detected to reach the recycling standard.
The paint mist spraying water treatment method is successfully applied, the energy consumption is low, the material consumption is low, the water can be recycled for a long time, and the operation is very convenient. If the device can be popularized, considerable benefits are certainly brought.
Claims (7)
1. The intelligent circulating treatment method of the paint mist spray water is characterized by comprising the following steps: the method sequentially comprises the following steps:
firstly, paint mist spray water to be treated enters a treatment tank (1) from a valve I (11), when an intelligent controller (6) detects that a liquid level meter I (12) reaches set liquid level data, the valve I (11) is closed, a primary dosing pump (31) is started to quantitatively add liquid medicine in a primary dosing tank (32), and simultaneously a blower (21) and an ozone generator (22) of an oxygen-enriched aeration device (2) are started to fully oxidize and react organic matters and harmful matters in the paint mist spray water, so that the paint mist spray water loses solubility and is gradually separated from water, and the oxygen-enriched aeration device (2) plays a role in air floatation stirring at the same time;
after the treatment process reaches the preset time, starting a secondary dosing pump (33) to quantitatively add the liquid medicine in a secondary dosing tank (34), after air floatation and uniform stirring, starting a water pump (4) to pump the paint mist spray water in the treatment process into a settling tank (5), controlling the paint mist spray water to be pumped into different settling tanks (5) according to a signal of a liquid level meter II (54) in the settling tank (5), and simultaneously stopping the oxygen-enriched aeration device (2) to wait for the next treatment process;
thirdly, under the action of the medicament, solid impurities and harmful substances in the paint mist spray water entering the settling tank (5) are gradually separated from the clear water (51), and the sediment is accumulated to the conical bottom of the settling tank (5) to form solid slag (52);
fourthly, after the precipitation is finished, opening a valve II (53) and starting a slag treatment device (7) to dehydrate and extrude the precipitated solid slag (52) into blocks, so that the transportation and the treatment are convenient;
and fifthly, after the slag treatment is finished, starting a water filter (8) to filter the treated clear water (51) for reuse.
Adding the first-class medicament to react for 10-120 minutes.
The precipitation time is 1-12 hours.
2. The intelligent circulating treatment method for paint mist spray water as claimed in claim 1, wherein: the medicament in the first-level medicament adding tank (32) is 1-50% of oxidant KMnO4、K2Cr2O7、CLO2、H2O2One, two, three, four and five of the five materials of NaClO are combined, and the adding dosage is 1-20%.
3. The intelligent circulating treatment method for paint mist spray water as claimed in claim 1, wherein: the agents in the secondary dosing tank (34) are flocculating settling agents PAM, PAC and FeSO4One, two, three and four of the four materials of polymeric aluminum and iron are combined, and the adding dosage is 0.01-20%.
4. The intelligent circulating treatment method for paint mist spray water as claimed in claim 1, wherein: adding the first-class medicament for reaction for 10-120 minutes, and settling in a settling tank for 1-12 hours.
5. The intelligent circulation treatment method for the paint mist spray water according to claim 1, wherein the paint mist spray water treatment device comprises a treatment tank (1), an oxygen-enriched aeration device (2), a dosing device (3), a water pump (4), a settling tank (5), an intelligent controller (6), a slag treatment device (7) and a water filter (8), and is characterized in that: the treatment tank (1) is a semi-closed tank body, the outer side of the upper part is provided with a valve I (11) connected with paint mist spray water to be treated, the upper part of the inner part is provided with a liquid level meter I (12), the lower part is provided with an aeration pipe (13) connected with the oxygen-enriched aeration device (2) through a pipeline, the side surface of the upper part is perforated and connected with a chemical adding device (3), the bottom part is provided with a water outlet (14) and connected with a water pump (4) and a sedimentation tank (5) through pipelines, the sedimentation tank (5) is a tank body with a conical bottom which is relatively sealed, the upper part of the inner part is provided with a liquid level meter II (54), the bottom part is perforated and provided with a valve II (53) and connected with a slag treatment device (7) through a pipeline, the side part is opened and connected with a water filter (8) through a pipeline, the oxygen-enriched aeration device (2) consists, the dosing device (3) is composed of a first-stage dosing pump (31), a first-stage dosing tank (32), a second-stage dosing pump (33) and a second-stage dosing tank (34), and is connected into the treatment tank (1) through a pipeline.
6. The intelligent circulating treatment method for paint mist spray water as claimed in claim 1, wherein: intelligent control ware (6) pass through the wire with valve I (11), level gauge I (12), one-level dosing pump (31), second grade dosing pump (33), oxygen boosting aeration equipment (2), water pump (4), level gauge II (54) respectively and are connected, intelligent control ware (6) comprise touch operation screen, singlechip, and touch operation screen can set for start-up period, operating time isoparametric, and the singlechip can record, save and analyze data such as the liquid level that gathers, passes through opening and stopping, the valve switching of relay control water pump (4), one-level dosing pump (31), second grade dosing pump (33), aeration equipment (2) according to the testing result.
7. The intelligent circulating treatment method for paint mist spray water as claimed in claim 1, wherein: the number of the settling tanks (5) is designed to be 1-200.
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| CN202010137423.3A CN111423009A (en) | 2020-02-26 | 2020-02-26 | Intelligent circulation treatment method and device for paint mist spray water |
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| CN202010137423.3A CN111423009A (en) | 2020-02-26 | 2020-02-26 | Intelligent circulation treatment method and device for paint mist spray water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114380449A (en) * | 2022-01-26 | 2022-04-22 | 海宁天纵电子科技有限公司 | Device is destroyed to smart medicine residual liquid based on oxidation incineration method |
| CN114477588A (en) * | 2022-01-26 | 2022-05-13 | 海宁天纵电子科技有限公司 | Liquid medicine destroying device with automatic detection function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380449A (en) * | 2022-01-26 | 2022-04-22 | 海宁天纵电子科技有限公司 | Device is destroyed to smart medicine residual liquid based on oxidation incineration method |
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| CN114477588B (en) * | 2022-01-26 | 2023-11-14 | 海宁天纵电子科技有限公司 | Liquid medicine destroying device with automatic detection function |
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